Kenwood DMC-J7R User manual

General
Power source DC........................
.............
........................
.......................
.....
...........
3.6 V (rechargeable lithium-ion
battery NB-L10A x 1)
DC 5 V (AC adaptor)
AC 230 V, 50 Hz
DC 3 V Separately available battery case
(commercially available, "AA"
size, alkaline battery x 2)
DC 4.0 V : Separately available car
adaptor, DC-C70
(for cars with a 12-24 V DC
negative earth electrical system)
Power consumption 7 W (AC adaptor)
Output power RMS; 20 mW (10 mW + 10 mW)
(0.2 % T.H.D.)
Charging time Approx. 3.0 hours
(When using the AC adaptor included
with the unit)
Battery life
Note:
The battery case is only sold in certain areas. For more details,
please ask your dealer.
The continuous recording time is for analogue input when the
volume level is set to "VOL 0".
The continuous play time shows the value when the volume level is
set to "VOL 15".
The above values are the standard values when the unit is charged
and used at an ambient temperature of 20oC.
The operating time when using alkaline batteries may be different,
depending on the type and manufacturer of the batteries, and on
the operating temperature.
Input sensitivity
Output level
Dimensions Width: 87.0 mm (3-7/16")
Height: 29.4 mm (1-3/16")
Depth: 81.5 mm (3-7/32")
Weight 219 g (0.49 lbs.) with rechargeable
battery
Input socket Line/optical digital, microphone
(powered by the main unit)
Output socket Headphones (impedance: 32
ohms)/remote control unit
MiniDisc Recorder
Type Portable MiniDisc recorder
Signal readout Non-contact, 3-beam semi-coductor
laser pick-up
Audio channels Stereo 2 channels/monaural (long-
play mode) 1 channel
Frequency response 20 - 20,000 Hz (±3 dB)
Rotation speed Approx 400 - 900 rpm
Error correction ACIRC (Advanced Cross Interleave
Reed-Solomon Code)
Coding ATRAC (Adaptive Transform
Acoustic Coding), 24-bit computed type
Recording method Magnetic modulation overwrite method
Sampling frequency 44.1 kHz (32 kHz and 48 kHz
signals are converted to 44.1 kHz,
and then recorded.)
Wow and flutter Unmeasurable (less than ±0.001% W.peek)
Continuous recording:
Approx. 4.5 hours Continuous recording:
Approx. 4 hours Continuous recording: Approx. 8.5 hours
Continuous play:
Approx. 6.5 hours Continuous play:
Approx. 8 hours Continuous play: Approx. 14.5 hours
Headphones — 10mW+ 32ohms
10mW
LINE 300mV (-12dB) — 50k ohms
Maximum
output level
Specified output
Recording level Reference input level Input impedance
MIC H 0.25 mV 10k ohms
MIC L 2.5 mV 10k ohms
LINE 100 mV 20k ohms
Load
impedance
When using two,
commercially available,
high capacity, "AA" size,
alkaline batteries (in the
separately available battery
case)
When using the recharge-
able battery NB-L10A (fully
charged) included with the
unit
When using two, commercially
available, high capacity, "AA"
size batteries with the
rechargeable battery (fully
charged)
....................
............
............
...............
....................
....................
.......................
..........................
...........................
.....................
......................
.......................................
...................................
...................................
DIGITAL EDIT & RECORDING
RECORDING REC LEVEL
/CURSOR
CHARACTER
AUTO MARK
SYNC/F.PLAY
VOLUME/NAME
PORTABLE MD RECORDER DMC-J7R
BASS/DELETE MODE/INSERT
OPEN
DISP
EDIT
OFF
ENTER
E
J
E
C
T
PORTABLE MD RECORDER
DMC-J7R
SERVICE MANUAL
© 1998-6/B51-5441-00 (K/K) 3163
Transparency cover *
(B10-)
Knob
(K29-2270-08)
Bottom cabinet *
(A02-)
Front cabinet
(A02-2808-08)
MD cover
(F07-1638-08)
Knob
(K27-2272-08)
Upper case assy
(A02-2814-08) : S
(A02-2862-08) : B
Knob base
(A02-2816-08)
* Refer to parts list on page 26.S: Silver, B: Blue
In compliance with Federal Regulations, following are reproduc-
tions of labels on, or inside the product relating to laser product
safety.
KENWOOD-Crop. certifies this equipment conforms to DHHS
Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM
SPECIFICATIONS
DMC-J7R(K)COVER1,1P( 98.11.301:44PM y[W 2

DMC-J7R
2
CONTENTS / ACCESSORIES / CAUTIONS
SPECIFICATIONS.........................................Top cover
CONTENTS / ACCESSORIES / CAUTIONS...............2
CONTROLS.................................................................3
DISASSEMBLY FOR REPAIR.....................................4
BLOCK DIAGRAM.......................................................6
CIRCUIT DESCRIPTION.............................................7
TROUBLE SHOOTING................................................8
NOTE ON SCHEMATIC DIAGRAM...........................14
PARTS DESCRIPTIONS...........................................15
WAVEFORMS OF MD CIRCUIT ...............................16
PC BOARD ................................................................17
SCHEMATIC DIAGRAM............................................21
EXPLODED VIEW .....................................................24
PARTS LIST...............................................................26
Contents
Accessories
Remote control (1)
(A70-1210-08) Stereo headphone (1) (W01-0941-05) : K,P type
(W01-0948-05) : T,E,E1,M type
Rechargeable battery (1)
(W03-5946-08): NB-L10A AC adapter (1) (W08-0669-08) : M type
(W08-0672-08) : E,E1 type
(W08-0673-08) : T type
(W08-0674-08) : K,P type
AC plug adapter (1)
(E03-0115-05) : M type Connecting cord (1) (E30-2836-08) Carrying case (1) (W01-0955-08)
How to reset
When this product is subjected to strong
external interference (mechanical shock,
excessive static electricity, abnormal sup-
ply voltage due to lightning, etc.) or if it is
operated incorrectly, it may malfunction. If
such a problem occurs, do the following:
1. Unplug the AC adaptor from the AC
socket.
2. Remove the battery.
3. Leave the unit completely unpowered
for approximately 30 seconds.
4. Plug the AC adaptor back into the AC
socket and retry the operation.
If strange sounds, smell or smoke come
out of the unit or an object is dropped into
the unit, remove the AC adaptor from the
AC socket immediately and contact an au-
thorized KENWOOD service centre.
Cautions
DMC-J7R(K)COVER1,1P( 98.11.301:44PM y[W 3

Error messages Meaning Remedy
BATT EMPTY The battery run down. Charge the rechargeable battery or
replace the alkaline batteries (or use
the AC adaptor for power).
BLANK DISC Nothing is recorded. Replace the disc with a recorded
disc.
Can't COPY No copy can be made because of
the SCMS copyright system. Record using the analogue cable.
Can't EDIT A track cannot be edited. Change the stop position of the
track and then try editing it.
Can't REC Recording cannot be performed
correctly due to vibration or shock
in the unit.
Re-record or replace it with another
recordable disc.
Can't WRITE Editing is impossible. Check the number of tracks.
DEFECT The disc is scratched. If the sound you hear is not right,
try recording again.
Replace the disc with another
recordable disc.
Din UNLOCK Poor connection of the digital cable. Connect the digital cable securely.
DISC ERROR The disc is damaged. Reload the disc or replace it.
DISC FULL The disc is out of recording space. Replace it with another recordable
disc.
HOLD The unit is in the safety mode. Return the HOLD switch to its
original position.
LOCKED
LOCK ERROR The EJECT lever was moved
during recording or editing. Turn off the power and remove the
MiniDisc.
NO DISC A disc has not been loaded. Load a disc.
PB DISC
PROTECTED The disc is write protected.
You tried to record on a playback-
only disc.
Move the write protection knob
back to its original position.
Replace it with a recordable disc.
POWER ? Improper power is being supplied. Use one of the specified power
sources.
SORRY Since a track number is currently
being located or written to, the unit
cannot accept your command.
Wait for a while and try the
operation again.
SYSTEM ERR You have come to the conclusion
that the unit is out of order. To have it repaired, go to the
distributor where you purchased the
unit.
TEMP OVER The temperature is too high. Turn off the power, and wait for a
while.
TOC ERROR A large portion of the disc has been
damaged. Replace it with another recorded
disc.
TOC FULL There is no space left for recording
character information (track names,
disc names, etc.).
Replace it with another recordable
disc.
Tr. Protect The track has been protected from
being erased. Edit the track with the device on
which it was recorded.
U TOC ERROR A large portion of the disc has been
damaged.
There is an error in the recorded
signal.
Replace it with another recorded
disc.
Erase all of the signal errors, and
then try recording again.
? DISC A disc which contains data other
than music was played.
There is an error in the signal from
the disc.
A disc which contains non-music
data cannot be played.
Replace it with another recorded
disc.
ERROR MESSAGES
DMC-J7R
3
CONTROLS
Main Unit
1. Monaural Long-Play Mode Indicator
2. Record Indicator
3. Level Meter
4. Repeat Indicator:
5. TOC Indicator
6. Battery Indicator:
7. Random Indicator
8. Track Number Indicator
9. Character/Time Information Indicator
10. Synchro Recording Indicator
11. Disc Mode Indicator
12. Disc Name Indicator
13. Track Name Indicator
14. Remaining Recording Time Indicator
15. Total Track Number Display
16. Record/Track Mark Button
17. Volume/Name Select Buttons: +, -
18. Display/Lowercase Characters Button
19. Character Button
20. Stop/Power Off/Charge Button:
/OFF
21. Play/Pause Button:
22. Fast Reverse/Fast Forward/Record-
ing LevelControl/Cursor Buttons:
/
23. Enter/Fast Play/Synchro Button
24. Edit/Auto Mark/Time Mark Button
25. Eject Lever
26. Bass/Delete Button
27. Mode/Insert Button
28. Microphone Input Socket
29. Hold Switch
30. Rechargeable Lithium-Ion Battery
Compartment
31. Optical/Line Input Socket
32. Headphones Socket
33. 5V DC Input Socket
34. Battert Case Connection Terminals
12345
6
7
8
9
10
11
12
13
14 15
16 17 18 19 20 21
22 23 24 25 26 27
29
34
30
33
28
31
32
Remote Control Unit
1. Synchro Recording Indicator
2. Character/Time Information
Indicator
3. Record Indicator
4. Repeat Indicator:
5. Random Indicator
6. Disc Mode Indicator
7. Total Track Number Display
8. Track Number Indicator
9. Battery Indicator:
10. Headpones Socket
11. Hold Switch
12. Play Mode Button
13. Volume Buttons: +, -
14. Bass Button
15. Display Button
16. Play/Pause Button:
17. Stop/Power Off Button:
18. Fast Reverse/Fast Forward
Buttons: /
RANDOM
TOTAL
1
REC
SYNC
12
13
14
11 15
16
17
18
10
1
6
23
4
5
789
NAMES OF CONTROLS AND INDICATORS
÷A rechargeable lithium-ion battery is
the only kind that can be used.
Even if the battery supplied with the
unit is not used, you should charge it
at least once every three months
because of the special quality of this
battery.
÷The rechargeable battery can be
charged approximately 300 times.
÷Do not use any battery other than
that specified. Use of other batter-
ies maycause malfunctions.
÷When the operating time is reduced
to about half the normal amount of
time, even after a full charge is per-
formed, replace the battery with a
new one.
÷When charging or when using the
rechargeable battery, use it within
an ambient temperature range of
5˚C to 35˚C.
÷If the rechargeable battery is used in
a cold environment, the operating
time will decrease.
Since the rechargeable battery is
vulnerable to damage, please note
the following.
÷Do not carry the battery in your
pocket or a bag together with metal
objects (keys, coins, jewelry, etc.).
The battery may short out and gen-
erate significant amounts of heat.
÷Do not short-circuit the terminals as
they will become very hot and will
damage the battery.
÷Do not dip the battery in water, do
not dispose of it in a fire, and do not
take it apart.
To avoid damaging the battery and
shortening its service life, please
note the following.
÷Do not drop or subject the battery to
shock.
÷Do not insert objects (metal etc.)
into the battery compartment of this
product or into the rechargeable bat-
tery. Do not get the terminals dirty.
If the rechargeable terminals are
dirty, the operating time may be
shortened or it may not be possible
to charge the battery.
÷After the rechargeable battery is
charged or used, it will get slightly
warm. This is normal.
7 Notes about the rechargeable battery
DMC-J7R(K)COVER1,1P( 98.11.301:44PM y[W 6

DMC-J7R
4
DISASSEMBLY FOR REPAIR
1 Bottom Cabinet 1. Open the battery Lid. 8-1
2. Screw .....................(A1) x6
2 Top Cabinet 1. Screw .....................(B1) x4 8-1
2. Flat Cable ...............(B2) x2
3 Main PWB 1. Screw .................... (C1) x2 8-2
2. Flat Cable ...............(C2) x3
4 Mechanism Unit 1. Lift the left side, and remove 8-3
in the arrow direction.
Caution on Disassembly
Follow the below-mentioned notes when disassembling
the unit and reassembling it, to keep it safe and ensure
excellent performance:
1. Take the battery and minidisc out of the unit.
2. When disassembling the machine, be sure to withdraw
the power plug from the socket in advance.
3. When disassemble the parts, remove the nylon band or
wire holder as necessary.
Toassembleafterrepair,besure to arrange the wires as
they were.
If a screw of different length is fitted to the MD mecha-
nism (the screw of the part to be fitted to the MD
mechanism chassis), it may contact the optical pickup,
resulting in malfunction.
4.Whenrepairing,paydueattentiontoelectrostaticcharges
of IC.
REMOVAL PROCEDURE
STEP FIGURE
Bottom Cabinet
Top Cabinet
Center
Cabinet
Pull
(A1)x1
Ø1.4x2mm
(A1)x1
Ø1.4x2mm
(A1)x2
Ø1.4x2mm
(A1)x2
Ø1.4x2mm
(B1)x1
Ø1.4x2mm
(B1)x1
Ø1.4x2mm
(B1)x2
Ø1.4x2mm
Figu re 8-1
Figure 8-2
Mechanism Unit
Figure 8-3
Caution:
1. Handle carefully the main PWB and flexible PWB.
Afterremoving the flexiblePWB (*1) foroptical pickup from
theconnector,wrapthefrontendofflexiblePWBinconduc-
tive aluminum foil so as to protect the optical pickup from
electrostatic damage.
2. When removing the mechanism from the cabinet or when
installing it, it is advisable to
rotate the unit lock plate to lower the holder section.
(C1)x1
Ø1.7x2.5mm
(C1)x1
Ø1.7x2.5mm
Pull
Pull
Pull Pull
Pull
Pull
Pull
Pull
(B2)x1
(B2)x1
(C2)x1
(C2)x1
(C2)x1
Main PWB
DMC-J7R(K)COVER1,1P( 98.11.301:44PM y[W 7

DMC-J7R
5
DISASSEMBLY FOR REPAIR
Removethemechanismaccordingtothedisassemblingmeth-
ods 1 to 3. (See Page 8.)
How to remove the spindle motor (See Fig. 9-1.)
1. Remove the solder joint (A1) x 1 of flex PWB.
2. Remove the stop (A2) x 3 pcs. and remove the spindle
motor.
Figure 9-5
Flexible PWB
solder joint
(A1) x1
Spindle Motor
(A2)x3
ø1.4x2.8mm
MDMechanism
Figure 9-1
(B1)x2
Remove the solder joint
Stop Washer
(B2)x1
Drive Gear
(B3)x1 Lift Motor
(B4)x1
ø1.4x2.2mm
Figure 9-2
Figure 9-3
(E1)x1
ø1.7x2.5mm
Shaft
Pickup Unit
How to reinstall the optical pickup unit
(See Fig. 9-5.)
1. Remove the screws (E1) x 1 pcs.
2.Remove the solderingjoint (C2) x2placesof flexPWB,and
remove the sled motor.
How to remove the magnetic head
(See Fig. 9-4.)
1. Remove the screw (D1) x 2 pc.
2. Remove the screw (D2) x1 which connects the magnetic
headtotheheadrelayflexPWB,andremovethesoldering
joint (D3) x2 pcs.
Note:
Mount carefully so as not to damage the magnetic head.
(D1)x2
Ø1.4x1.8mm
(D1)x1
Ø1.4x1.5mm
Pickup Unit
Magnetic Head
Solder
joint
(D3)x2
Figure 9-4
How to remove the lift motor (See Fig. 9-2.)
1. Remove the solder joint (B1) x 2 of slide motor lead wire.
2.Remove thestopwasher (B2)x 1 pc.,and removethedrive
gear (B3) x 1 PC.
3. Remove the screw (B4) x 1, and remove the lift motor.
Note:
Take care so that the motor gear is not damaged.
(If the gear is damaged, noise is raised in search mode.)
How to remove the sled motor (See Fig. 9-3.)
1. Remove the solder joint (C1) x 2 of slide motor lead wire.
2. Remove the screw (C2) x 2, and remove the sled motor.
Note:
Take care so that the motor gear is not damaged.
(If the gear is damaged, noise is raised in search mode.)
(C1)x2
ø1.4x1.2mm
Sled Motor
Washer x2
(C2)x2
Mecha Flexible PWB
solder joint
DMC-J7R(K)COVER1,1P( 98.11.301:44PM y[W 10

DMC-J7R
6
BLOCK DIAGRAM
LASER
HEAD
LIFT
MOTOR
MOTOR
DRIVER
SPINDLE
MOTOR
SLED
MOTOR
SPINDLE
MOTOR
DRIVER
(BA6965FV)
VCC VS
HEAD
DRIVER
VS
VCC
RF SIGNAL
PROCESSOR
(IR3R55)
PICK COIL
DRIVER
VCC VM
4 M
D-RAM
(IC202)
ENDEC
ATRAC
(LB37648B)
SYSTEM
MICROCOMPUTER
E
2
-PROM
DISPLAY UNIT
OPERATION UNIT
AD/DA
CONVERTER
POWER
DRIVER
2.5V
REGULATOR
+2.8V
-2.8V
(IR3M09)
VCC
POWER DRIVER
(IR3M09)
2.5V REGULATOR
(ON/OFF)
(IR3R54N)
AUDIO AMP.
VCC VEE
(IR3R54N)
AUDIO AMP.
VCC VEE
+6~8
DC IN
RIPPLE
FILTER
DIGITAL INPUT
OPTICAL
INPUT UNIT
LINE INPUT
LINE OUT
MIC IN
HEAD PHONES
4.5V
REGULATOR
(ON/OFF)
REMOTE CONTROL
POWER SELECT
N-ch MOS FET
3V
DC/DCONVERTER
BATTERY
VOLTAGE
REGULATOR
CONSTANT
CURRENT DRIVE
RECHARGEABLE
BATTERY
OPIC
POWER SELECT
CHARGE DRIVER
VCC
+2.8
+2.5
F
IC901
+2.5
(LB1638) IC651
+2.5
+2.2
+2.5
+2.5
+2.5
+2.5
+2.5
(74ACT02)
IC351
IC101
IC601
IC201
IC401
+2.5
IC402
+2.8
IC501
+2.5P IC771
+2.8
IC841
IC821
+2.5
+2.5
IC875
IC701
+2.8V -2.8V
IC703
+2.8V -2.8V
J701
+4.5
J701
J702
Q721
IC702
J703
IC801,803,804
+1.8~5.5V
IC871
3~5V (1.8~3.4V)
IC800,805,Q801
(2.9~4.1V)
J801
DC JACK
(4~5.5V)
PICK
T
DMC-J7R(K)COVER1,1P( 98.11.301:44PM y[W 11

DMC-J7R
7
CIRCUIT DESCRIPTION
66 P52 RCLAT Output Record audio
67 P53 PBOPON Output Audio IC output stage control output
68 P54 MCPGIN Input Mic plug insertion detection input
69 P55 INPGIN Input Line/digital plug insertion detection
70 P56 INPGCK Input Line/digital plug type detection
71 P57 RCPCNT Output Record circuit power control output
72 VSS VSS Output Ground potential
73 P60 EMPHO Output Audio emphasis control output 0
74 P61 HPLAY Input Main unit PLAY key operation detection input
75 P62 HREC Input Main unit REC key operation detection input
76* P63 RTCCE Output Clock IC chip enable control output
77* P64 RTCWR Output Clock IC read/write control output
78 P65 CEDT In/Output Clock/EEPROM serial data input/output
79 P66 CECK Output Clock/EEPROM serial data input/output
80 P67 EPCS Output EEPROM chip selection output
81 VDD VDD Output Positive power supply
82 T15 SPIN Inout Spindle motor FG pulse detection input
83* P101 P101 Output Spare for sled motor control
84* P102 TEST0 Input Test mode setting input 0
85* P103 TEST1 Input Test mode setting input 1
86 P30 PSLINN Output Built-in battery power selection output
87 P31 PSLDCI Output DC jack power selection output
88 P32 PSLDRY Output Dry cell power selection output
89* P33 P33 Output Spare for sled motor control
90 P34 ELON Output Remote controller EL light control output
91 T100 CIN Input Truck cross signal detection input
92 P36 PHOLD Output Dry cell power ON holding output
93 P37 PCNT1 Output Power IC VREF feed control output
94 TEST/VPP VPP Output Test/R-ROM write power input
95 P90 PCNT2 Output Power IC VCC feed control output
96 P91 CKSTP Output Main clock stop control output
97 P92 DISCIN Input Disk insertion detection input
98 P93 INNSW Input Mechanism inner SW position detection input
99 P94 DISCPR Input Record enable/disable switch detection input
100 P95 PDCNT Output PD current control output for inner detection
Pin No. FunctionPort Name Terminal Name Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Table1: TEST PORT
Table2: EMPHASIS PORT
TEST1 TEST0 Description
EMPH1 EMPH0 Description
H H Normal mode
H H fs: 32kHz ON
H L No adjustment
H L fs: 48kHz ON
L H Test mode
L H fs: 48kHz OFF
L L Prohibition
L L fs: 44.1kHz ON
Table3: LDCNT PORT
EMPH1 EMPH0 Description
H H Brake
HL UP
L H DOWN
L L OFF
SYSTEM LSI EXTENSION PORT(IC:201/LR37648)
Pin No. Port Name I/O Descriptions Remarks
52,53 LDCNT1,2 O Recording head up/down control port. table3
54 - O No use open
55 EMPH1 O Audio emphasis control port. table2
56 DCNT1 O Mechanism driver enable port. H= enable
57 OPTCNT O Power on/off for optical input circuitry. H= on
58 DAPON O D/A converter control port H=work
59 ADPON O A/D converter control port H=work
1 P120 SWP UP Output Asterisk input Output for pull-up
2*~7* P121~P126 P121~P126 Output Not used
8 P127 OEM Input Product brand ID input
9 VDD VDD Input Positive power supply
10* X2 X2 Input Not used
11 X1 X1 Input Main system clock input
12 VSS VSS Input Ground potential
13* XT2 XT2 Input Not used
14 XT1 XT1 Input Subsystem clock input
15 RESET RESET Input Microcomputer hard reset input
16 INPUT0 DINT Input System LSI interruption request input
17 P01 SENSE Input System LSI servo sense input
18 P02 FOK Input Focus OK signal input
19 P03 XRST Outout System LSI hard reset output
20* P04 P04 Output Not used
21 P05 HDON Output Record head current control output
22 P06 VLIM Intput Volume limiting switch input
23 AVDD AVDD Input A/D converter analog positive power
24 AVREF0 AVREF0 Input A/D converter reference voltage input
25 ANI0 PLVINN Input Built-in battery voltage detection input
26 ANI1 PLVDCI Input DC jack voltage detection input
27 ANI2 PLVDRY Input Dry cell voltage detection input
28 ANI3 RKEY Input Remote controller key operation detection input
29 ANI4 HKEY1 Input Main unit key operation detection input 1
30 ANI5 HKEY2 Input Main unit key operation detection input 2
31 ANI6 TEMP Input Ambient temperature detection input
32 ANI7 CNTRY Intput Product destination ID input
33 AVSS AVSS Intput A/D converter ground potential
34 ANO0 LDVAR Output P.U. laser power set output
35* ANO1 MDOUT Output Internal motion mode output
36 AVREF1 AVREF1 Output D/A converter reference voltage input
37 P70 SYWR Output System LSI write enable output
38 P71 SYRD Output System LSI read enable output
39 P72 SYRS Output System LSI register selection output
40 P20 - Output Not used
41 SO1 RMDAT Output Remote controller display data output
42 P22 - Output
43 P23 HSTOP Input Main unit STOP key operation detection input
44 P24/BUZ BEEP Output Beep tone pulse output
45 P25 DSPSTB Output Main unit display control strobe output
46 SO0 DSPDAT Output Main unit display control serial data output
47 SCK0 DSPSCK Output Main unit display control serial clock output
48~55 P80~P87 SYD0~SYD7 In/Output System LSI parallel data bus
56 P40 EJECT Input Eject lever operation detection input *
57 P41 KHOLD Input Main unit key hold switch input
58 P42 RPLAY Input Remote controller PLAY key operation detection input
59* P43 HFON Output P.U. high frequency superposition control output
IC401 RH-iX2680AF03(IX2680AF):System Microcomputer
Pin No. Function
Port Name Terminal Name Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
60 P44 LDON Output P.U. laser ON/OFF control output
61 P45 OPICGA Output P.U. detection sensitivity selection output
62 P46 RFLAT Output RF amp. IC data latch output
63 P47 RACLK Output RF/audio IC data clock output
64 P50 RADAT Output RF/audio IC serial data output
65 P51 PBLAT Output Playback audio IC data latch output
DMC-J7R(K)COVER1,1P( 98.11.301:44PM y[W 14

DMC-J7R
8
TROUBLE SHOOTING
Yes
Check whether there is defective solder joint of audio signal
line between IC703 and J703
No
Yes
Is audio wavefrom output from J703 pins 3 and 4.
Check the pins 5 and 6 of IC703.
No
Yes
Is audio wavefrom output from IC703 pins 18 and 19.
Check IC201 pins 70 to 72, pin 74 and IC501 pins 9, 10, 11,
15
No
• Abnormal display
No
Yes
Is waveform output from IC 401 pins 45 to 47?
Check for pattern breakage of flexible PWB, check for
defects of display microcomputer (replace the display unit).
Is waveform output from CNS 482 pins 1 to 3?
Are the pin7 (VCC) and pin 6 (GND) normal?
• Playback state cannot be set
Is initialization performed normally in case of high- reflection
disc playback?
Yes
Check between IC401 and
CNS482.
No
Check the periphery of IC401.
Does the playback time display advance?
Yes
Position check in INNER mode
Check IC201 and IC202 connection line.
Is the lead-in photointerrupter set to OFF when the optical
pickup moves to the innermost periphery in NORMAL mode?
(Is TP660 in H level?).
Check the lead-in photointerrupter, mechanical flex
PWB soldering and CNS601 connection.
No
Ia an attempt to repeat repeatedly the TOC part performed
on the low-reflection disc?
Yes
No No
Replace the disc.
No
• Audio playback clrcult
When it has been ascertained that the address up to cluster address is normal in the TEST mode.
Yes
Is audio wavefrom output from IC501 pins 19 and 20?
Check headphones jack,and periphery of headphone.
Although the playback time display is acting., no sound is given during playback in the normal mode.
It is advisable to use the TEST mode (refer to Error Data Display Mode, P15) indicating the causes of troubles before
starting repair. Causes of operation errors (up to 10 errors) are recorded as error codes. This information is useful
for repair.
When does not function
When the CD section does not operate When the objective lens of the optical pickup is dirty,this section may not operate.Clean
theobjectivelens,andchecktheplaybackoperation.Whenthissectiondoesnotoperateevenaftertheabovestepistaken,check
the following items.
Remove the cabinet and follow the troubleshooting instructions.
"Trackskippingand/ornoTOC(TableOfContents) maybecausedbybuildupofdustotherforeignmatteron thelaserpickuplens.
Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below."
Turn the power off.
Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol.
Do not touch the lens with the bare hand.
Is the power supply turned on when the remote control
button or main unit button is pressed? No Perform the check stated in item "Power is not turned on
when the PLAY button is pressed".
Perform the check stated in item "Abnormal display".
No
Yes
Does the display operate normally?
Is playback state set?
Yes
Perform the check stated in item "Playback state connot be
set".
No
Is audio output normal?
Yes
Perform the check stated in item "Audio playback circuit".
No
Is recording/playback operation normal?
Yes
Perform the check stated in item "Recording/playback
operation".
No
• Power is not turned on when the / button
is pressed.
No
No
Yes Check the periphery of remote controller and main unit
headphone terminal (J703) and IC401.
No
Is the pin 57 of IC401 in H state?
Is operation normal when the main body button is pressed?
Check the position of Hold switch.
Is power turned on when the remote control button is
pressed?
No
Are IC401 pin 97 set to "L"? Check the DISC IN (SW901) switch of mechanism PWB.
Yes
Yes
Is clock supplied to the pins 11 and 14 of IC401? No Check that voltage is applied to the periphery of IC403.
Yes
Is 2.5V applied to TP811? No Check whether there is solder touch of part connected to
the +2.5V line.
DMC-J7R(K)COVER1,1P( 98.11.301:44PM y[W 15

DMC-J7R
TROUBLE SHOOTING
9
1 High reflection disc TG YS-1 (SONY)
2Low reflection disc Recording minidisc
Test disc
MD adjustment needs two types of disc, namely recording disc (low reflection disc) and playback-only disc (high
reflection disc).
Type Test disc
Note: Use the low reflection disc on which music has been recorded.
EEPROM version
Destination
Leaving the TEST mode
(1) Press the STOP button in the TEST mode stop state or version indicating state or whole LCD lighting state.
(2) EEPROM rewrite-enable area updating, adjustment error setting (so as to adjust all the items when the power supply is turned
on in the normal mode)
(3) Change to standby state
Test Mode
1. AUTO 1 Mode • Perform preliminary automatic adjustment.
• If the combination of mechanism and pickup
PWB has been changed, be sure to start from
AUTO1.
2. AUTO 2 Mode • Perform ATT (attenuator) automatic adjustment.
• Perform continuous playback (error rate display,
jump test)
3.
✻✻
✻
✻
✻
✻
✻
✻
MANUAL 1 Mode • Temperature is displayed. (Updating in realtime)
• Seeing the displayed adjustment value, perform
preliminary manual adjustment.
(Error rate indication, jump test)
4. MANUAL 2 Mode • Temperature is displayed. (Updating in realtime)
• Seeing the displayed adjustment value
perform manfully the preliminary adjustment.
(Error rate indication, jump test)
• Continuous playback is performed
(error rate display, jump test).
5. RESULT 1 Mode • The value adjusted in AUTO1 or MANUAL1 is
indicated.
• (Execution in servo "OFF" state").
6. RESULT 2 Mode • The value adjusted in AUTO 2 or MANUAL 2 is
indicated.
• Adjustment value is changed manually.
(error rate display, jump test).
7. TEST-PLAY Mode • Continuous playback from the specified address
is performed.
• 1 line, 10 lines or 400 lines manual jump is
performed.
• C1 error rate display (pit section), ADIP error
rate display (groove section)
• The temperature correction is performed only
when servo start is performed, but the posture
correction is not performed duringcontinuous
playback.
Microcomputer version
Entering the TEST mode
1. Setting at port (in standby state, disc-free state or power nonconnected state)
(1) Set the port as follows.
TEST1 : "Low"
TEST0 : "High"
(2) Press the PLAY button in the standby state (it is allowed to insert the disc or to connect the power supply).
(3) Test Mode STOP [ _ T E S T _ ]
2. Setting by special button operation (in standby state)
(1) Holding down the DISP button and ENTER button, press the PLAY button.
(2) Normal mode setting initialization (BASS setting, VOL setting, etc.)
(3) Indication of microcomputer version for one second [ ]
(4) Whole LCD lighting for 2 seconds
(5) Test Mode STOP [ _ T E S T _ ]
*When the PLAY button is pressed during indication (3) and (4), the process proceeds to (5).
8. TEST-REC Mode • Continuous record from the specified address is
performed.
• Change of record laser output(servo gain is also
changed according to laser output).
• The temperature correction is performed only
when servo start is performed, but the posture
correction is not performed during continuous
recording.
9. NORMAL Mode • The mode is changed from the TEST mode to
the normal mode without adjustment.
• In the normal mode the internal operation mode,
memory capacity, etc. areindicated.
• In the normal mode both temperature correction
and posture correction are perfomed.
10. DIGITAL INPUT mode • Digital input information is displayed.
11. ERROR INFORMATION • Error information is displayed.
Mode • Error information is initialized
12. E2-PROM Mode • Factors of digital servo are changed manually.
(Each servo is turned on individually.)
• Cut-off frequency of BASS1, BASS2 and BASS3
is selected manually.
• Temperature detection terminal voltage is
measured, and the reference value is set.
• Defaults are selected and set.
• Setting of EEPROM protect area is updated.
(In case of protect releasing)
13. INNER
These modes are not used for service.
Mode • Determine the position where the INNER switch
is turned on. (only high reflection disc).
• The temperature correction is performed only
when servo start is performed, but the posture
correction is not performed.
Type Parts No.
1 Flat Cable for servicing 16Pin QCNWK0110AFZZ
2 Extension Connector for Service 16Pin RUNTK0460AFZZ
Extension Cable (See Fig.10)
Figure 10
Mecha Flexible PWB
16 pin
16 PIn
CN601
QCNWK0110AFZZ
16pin Flat Cable RUNTK0460AFZZ
Extension PWB for servicing 16pin
PWB side
•Thespindle motorfailstorun.Doestheheadmove
No
DoesthewaveformappearontheIC201pins 24and25after
TEST mode AUTO2 completion and in this state? Check the IC201 periphery.
Yes
Does waveform appear on the IC601 pin 13?
Does waveform appear on IC901 pins 1, 19 and 20?
Replace the spindle motor.
Yes
No L608, IC201, IC901, CN601 and flex, etc. soldering check
No Replace. IC601
Yes
• Recording/playback operation
Insert a low reflection disc, and ascertain audio output by normal playback, and then set TEST REC mode.
Yes
Does the head move down, failing to start record even
when the continuous record mode is set after address? Check voltage of pins 52 and 53 of IC201, pins 2, 4, 7, and 9 of
IC651, pins 3 and 4 of CNS601. Check whether disc is record-
inhibited.
No
Does the RF waveform of TP201 appear when playback is
Does level of pins 34 of IC401 and pin 17 of IC101 change
depending on record and playback?
Is RF pattern output from IC201 pin 50?
Yes
No Check for soldering failure of IC201 .
No Check periphery of IC401 and IC101.
Check whether there is any damage in IC101, periphery of
laser diode.
Yes
Check for defects of IC351 in head drive flexible PWB,
Q351 to 354, head, flexible PWB.
No
Yes
Is audio monitor output given in normal mode LINE IN
record? Check waveforms of pins 9 to 12 of IC501, pins 70 to 73 of IC201.
Is waveform obtained on IC501 pins 3 and 6?
No
Yes Check whether the pin 7 of IC501 and the pin 59 of IC201 are in
H state.
No
No Does voltage on the IC701 pins 13 to 15 change in case of
record VOLUME UP/DWN?
Is audio waveform observed on the pins 18 and 19 of
IC703? Yes
Check whether input waveform is observed on the pins 5
and 6 of IC703.
Yes
DMC-J7R(K)COVER1,1P( 98.11.301:45PM y[W 26

DMC-J7R
1. AUTO1 Mode
• When the STOP button is pressed while the AUTO1 menu appears or during automatic adjustment, the mode changes to the TEST mode
stop state. At this time the adjustment value is not output.
• Be sure to adjust, using the specified disc MMD-212.
At this time release the EEPROM (IC402) protection. (Refer to EEPROM write procedure.)
• Adjustment NG; Adjustment item out of range, focus ON failure, and adjustment error
• When the PLAY button is pressed while ADJ. OK is displayed, AUTO2 is executed.
Operation in each TEST mode
2. AUTO2 Mode
• When the STOP button is pressed while the AUTO2 menu appears or during automatic adjustment, the mode changes to the TEST mode
stop state. At this time the adjustment value is not output.
• Adjustment NG; Adjustment item out of range, and adjustment error
3. MANUAL2 Mode
• Adjustment item to be made in AUTO2 mode is performed manually.
• When the VOL UP button is pressed during adjustment, the setting increases, and the new setting is output.
• If the VOL DOWN button is pressed during adjustment, the setting decreases and the new setting is output.
• If the VOLUP/DOWN button is held down, the setting changes continuously with 100 ms cycle.
• If the setting is within the allowable range, the RANDOM display lights.
• When the STOP button is pressed during MANUAL2 MENU or measurement or adjustment, the state is changed to the TEST mode stop
state.
• When the PLAY button is pressed in B-ATT set state, the mode is changed to the continuous playback mode.
• As for operation during continuous playback refer to "TEST-PLAY mode explanation".
4. TEST-PLAY Mode
•When the STOP button is pressed while the TEST-PLAY menu appears, or in TEST-PLAY or continuous playback mode, the mode changes
to the TEST mode stop state.
• When the PLAY button is pressed while the TEST-PLAY menu appears,continuous playback is initiated from the current pickup position.
• Whenever the DISP button is pressed in the TEST-PLAY mode, the address changes as follows.
0050 — 03C0 — 0700 — 08A0 — 0050 —
• Whenever the BASS key is pressed in the TEST-PLAY mode, the digit which is changed by the SKIP UP/DOWN button changes as follows.
0050 — 0050 — 0050 — 0050 — 0050 —
• When the SKIP UP button is pressed in the TEST-PLAY mode, the digit of address specified by the BASS button is set to +1h. (0 to F)
• When the SKIP DOWN button is pressed in the TEST-PLAY mode, the digit of address specified by the BASS button is set to -1h. (0 to F)
* When the SKIP UP/DOWN button is held down, the setting changes continuously, one cycle being 100 ms.
• When the BASS button is pressed in the continuous playback mode, the number of jump lines changes as follows.
1 — 10 — 400 — 1
* After the number of jump lines is indicated for one second, the address indication is restored. [ T R _ ]
• When the SKIP UP button is pressed in the continuous playback mode, the specified number of lines is jumped in the FWD direction.
• When the SKIP DOWN button is pressed in the continuous playback mode, the specified number of lines is jumped in the REV direction.
* When the SKIP UP/DOWN button is held down, jump is repeated every approx. 100 ms.
• When the STOP button is pressed while the TEST-REC menu appears, or in the TEST-REC mode or continuous record mode, the mode
changes to the TEST mode stop state.
• When the PLAY button is pressed while the TEST-REC menu appears, the continuous record is initiated from the current pickup position.
• Whenever the DISP button is pressed in the TEST-REC mode, the address changes as follows.
0050 — 03C0 — 0700 — 08A0 — 0050 —
• Whenever the BASS button is pressed in the TEST-REC mode, the digit which is changed by the SKIP UP/DOWN button changes as
follows.
0050 — 0050 — 0050 — 0050 — 0050 —
• When the SKIP UP button s pressed in the TEST-REC mode, the digit of address specified by the BASS button is set to +1h.(0 to F)
• When the SKIP DOWN button is pressed in the TEST-REC mode, the digit of address specified by the BASS button is set to -1h. (0 to F)
* When the SKIP UP/DOWN button is held down, the setting changes continuously, one cycle being 100 ms.
• When the VOL UP/DOWN button is pressed in the TEST-REC mode or continuous record mode, the laser record power changes.
(Servo gain changes also according to record power.)
* After the laser record power is indicated for one second, the address indication is restored. [ R P W ]
• : Address
• : Laser power cord
• Operation is disabled if the premastered disc or disc is in miserase-protected state.
5. TEST-REC Mode
• Whenever the DISP button is pressed in the continuous playback mode, the indication changes as follows.
* Pit section
Continuous playback (SUBQ address indication) [ S Q ]
|
Continuous playback (C1 error indication) [ C E ]
|
Continuous playback (SUBQ address indication) [ S Q ]
* Groove section
Continuous playback (ADIP address indication) [ A P ]
|
Continuous playback (C1 error indication) [ C E ]
|
Continuous playback (ADIP error indication) [ A E ]
|
Continuous playback (ADIP address indication) [ A P ]
TROUBLE SHOOTING
10
6. Error data display Mode
• Reversing when SKIP DOWN button is pressed
• When the STOP button is pressed while the error data indication menu appears or during error data indication, the mode changes to the
TEST mode stop state.
• Error data 0 is the latest error.
• Error which occurred in the TEST mode is also stored in the memory.
• When the DISP button is pressed while the error data indication menu appears, the error data is initialized. [ C L E A R _ ]
• : Error Code
Explanation of error history code
12h : RF side FG, TG, and TCRS adjustment termination failure
13h : Adjustment servo retraction excessive retrial
17h : A, B, E, F, and TCRSO offset measurement value out of tolerable range
21h : Focus retraction completion allowable time-over
23h : Track search completion allowable time-over
32h : P-TOC read failure
42h : U-TOC read failure
44h : U-TOC write data write disabled/read check error
52h : SD write data write disabled
71h : Pickup position initialization time-over
72h : EEPROM data read check sum error
73h : Record head drive disabled (by EJECT lever)
82h : Power overvoltage detection
91h : Ambient temperature is higher that the allowable temperature.
DMC-J7R(K)COVER1,1P( 98.11.301:45PM y[W 25

DMC-J7R
11
TROUBLE SHOOTING
: Test Mode STOP
: Pre-autoadjustment menu
: ATT autoadjustment menu
: Pre-manual adjustment menu
: ATT manual adjustment menu
: Preadjustment value check menu
: ATT adjustment value check menu
: Continuous record menu (record/playback machine only)
: Test mode normal playback menu
: Error history display menu
: EEPROM setting menu
: INNER switch position measurement menu
BASS
T E S T
Slide external
periphery move Slide internal
periphery move
Tset Mode Menu
Test Mode Change Chart
A U T O 1
A U T O 2
SKIP UP SKIP DOWN
SKIP DOWN
M A N U 1
SKIP UP SKIP DOWN
M A N U 2
SKIP UP SKIP DOWN
R S L T 1
SKIP UP SKIP DOWN
R S L T 2
SKIP UP SKIP DOWN
T R E C
SKIP UP SKIP DOWN
: Continuous playback menu
T P L A Y
SKIP UP SKIP DOWN
N O R M A L
SKIP UP SKIP DOWN
E D A T A
SKIP UP SKIP DOWN
: Digital input signal monitor menu (record/playback machine only)
D i n M o n
SKIP UP SKIP DOWN
E E P R O M
SKIP UP SKIP DOWN
I N N E R
SKIP UP
SKIP UP
SKIP DOWN
SKIP DOWN
SKIP UP
* When the "STOP" button is pressed in specific menu, the TEST MODE STOP state is set.
: Preautomatic Adjustment menu
: Preadjustment error (adjustment value output)
: During preadjustment adjustment
Adjustment error
Normal end
: Preadjustment normal end (adjustment value output)
: During ATT automatic adjustment
PLAY
PLAY
A U T O 1
Preautomatic Adjustment
A D J . O K
A D J . N G
A T 2
A T 1
* When the "STOP" button is pressed in specific menu, the TEST MODE STOP state is set.
* " " represent the adjustment number as follows.
0 0 : Innermost periphery move
0 2 : ABEF offset tentative measurement
0 4 : RF side focus gain coarse adjustment
0 5 : Focus ATT tentative setting
0 6 : RF side bit section tracking gain adjustment
0 7 : COUT level setting for pit section adjustment
0 8 : External periphery move
0 9 : RF side groove section tracking gain adjustment
1 0 : COUT level setting for groove section adjustment
1 1 : RF side TCRS gain adjustment
1 2 : Tracking ATT initial setting
1 3 : RF side focus gain minor adjustment
1 4 : Focus ATT initial setting
1 5 : S gain "High" ABEF offset measurement
1 6 : TCRS offset measurement
1 7 : S gain "Low" ABEF offset measurement
DMC-J7R(K)COVER1,1P( 98.11.301:44PM y[W 18

DMC-J7R
12
TROUBLE SHOOTING
: ATT Autoadjustment menu
: ATT adjustment error (adjustment value output)
: During ATT autoadjustment
Adjustment error
Normal end
: ATT adjustment normal end (adjustment value output)
: Continuous playback (high reflection)
: Continuous playback (low reflection)
PLAY
PLAY
A U T O 2
ATT Autoadjustment
A D J . O K
A D J . N G
S Q # # # #
A P # # # #
A T 2
* When the "STOP" button is pressed in specific menu, the TEST MODE STOP state is set.
* " " represent the adjustment number as follows.
0 0 : Innermost periphery move
0 3 : Pit section tracking ATT setting
0 4 : Pit section focus ATT setting
0 6 : External periphery move (low reflection only)
0 7 : TCRS ATT setting (low reflection only)
0 8 : Groove section tracking ATT setting (low reflection only)
0 9 : Groove section focus ATT setting (low reflection only)
: Temperature code displayATT manual adjustment menu
: Temperature code display
$ $ : Temperature code
: Laser ON (Play Power)
PLAY
M A N U 2
ATT Manual Adjustment
T M P $ $
L O N P
L O N P L O N R
SKIP UP S
approx: 0.58mW approx: 8.0mW approx: 5.6mW
KIP DOWN
* In laser ON state (without disc) the laser power is changed as follows if the [BASS] key is pressed
(record/playback machine only).
L O N M
Play power Max. power
BASS BASS
BASS
Record power
: Continuous playback menu
: Continuous playback (pit section)
: Continuous playback (groove section)
# # # # : Address
: Continuous playback (pit section)
: Continuous playback (groove section)
# # # # : Address
PLAY
T P L A Y
Continuous Playback
S Q # # # #
A P # # # #
: Continuous playback (pit section)
: Continuous playback (groove section)
# # # # : Address
: High reflection pit section B-ATT (focus) setting
: High reflection groovesection B-ATT (focus) setting
: ATT setting
P-MODE
S Q # # # #
A P # # # #
H B
L B
* When the "STOP" button is pressed in specific menu, the TEST MODE STOP state is set.
* In the start address set state the start address changes as follows when the [DISP] key is pressed.
0 0 5 0
H (initial value) 0 3 C 0
H
0 7 0 0
H
0 8 A 0 H
A d 0 0 5 0 A d 0 3 C 0
DISP
DISP
A d 0 7 9 0
DISP DISP
A d 0 8 A 0
* In the start address setting state the start address change digit changes when the [BASS] key is pressed.
1st digit (initial value) 2nd digit 3rd digit
A d 0 0 5 0 A d 0 0 5 0
BASS
BASS
A d 0 0 5 0
BASS
* In the continuous playback state the number of jump lines changes as follows shown
the [BASS] key is pressed.
1 (initial value) 10 400
1 T R 1 0 T R
BASS
BASS
4 0 0 T R
BASS
• Continuous playback from current pickup position
: Continuous playback menu
: Start address setting
DISP
T P L A Y
A d 0 0 5 0
PLAY
S Q # # # #
A P # # # #
• Continuous playback from any address
* In the start address set state the value of selection digit changes in the range of "0h to Fh"
when the [SKIP UP/DOWN" key is pressed.
* In the continuous playback state the state is changed to ATT manual adjustment B-ATT setting state
when the [P-MODE] key is pressed.
* In the continuous playback state, jump ocurs in the specified number external periphery direction.
If the key is held down, jump occurs continuously with 100 ms period.
DMC-J7R(K)COVER1,1P( 98.11.301:44PM y[W 19

DMC-J7R
13
TROUBLE SHOOTING
: Error history display menu
: Error history 0 display
§ § : Error code
: Error history 1 display
§ § : Error code
: Error history 2 display
§ § : Error code
: Error history 3 display
§ § : Error code
: Error history 4 display
§ § : Error code
: Error history 5 display
§ § : Error code
: Error history 6 display
§ § : Error code
: Error history 7 display
§ § : Error code
: Error history 8 display
§ § : Error code
: Error history 9 display
§ § : Error code
PLAY
E D A T A
Error History Display
E 0 § §
E 1 § §
: Error history display menu
: Error history clear
PLAY
E D A T A
C L E A R
SKIP UP SKIP DOWN
E 2 § §
SKIP UP SKIP DOWN
E 3 § §
SKIP UP SKIP DOWN
E 4 § §
SKIP UP SKIP DOWN
E 5 § §
SKIP UP SKIP DOWN
E 6 § §
SKIP UP SKIP DOWN
E 7 § §
SKIP UP SKIP DOWN
E 8 § §
SKIP UP SKIP DOWN
E 9 § §
SKIP UP SKIP DOWN
• Error history clear
• Error history display
* When the "STOP" button is pressed in specific menu, the TEST MODE STOP state is set.
: Continuous record menu
PLAY
T R E C
Continuous Record
A P # # # #
* When the "STOP" button is pressed in specific menu, the TEST MODE STOP state is set.
* In the start address set state the start address changes as follows when the [DISP] key is pressed.
• Continuous record from the current pickup position
: Continuous record menu
: Start address setting
: Continuous record
# # # #: Address
: Continuous record
# # # #: Address
PLAY
T R E C
A d 0 0 5 0
PLAY
A P # # # #
• Continuous record playback from any address
A d 0 0 5 0
0 0 5 0
H (initial value) 0 3 C 0
H
0 7 0 0 H
0 8 A 0
H
A d 0 3 c 0
DISP
A d 0 7 0 0
DISP DISP
DISP
A d 0 8 A 0
* In the start address setting state the start address change digit changes when the [BASS] key is pressed.
* In the start address set state the value of selection digit changes in the range of 0h to Fh wh
en the [SKIP UP/DOWN] key is pressed.
* In the continuous record state and start address set state the record laser power changes in t
he range of "0h to Fh" when the [VOL UP/DOWN] key is pressed.
A d 0 0 5 0
1st digit (initial value) 2nd digit 3rd digit
A d 0 0 5 0
BASS
A d 0 0 5 0
BASS
BASS
: INNER switch position measurement menu
: Continuous playback (pit section)
# # # # : Address
PLAY
I N N E R
Inner Switch Position Measurement
S Q # # # #
* When the "STOP" button is pressed in specific menu, the TEST MODE STOP state is set.
DMC-J7R(K)COVER1,1P( 98.11.301:45PM y[W 22

DMC-J7R
14
NOTES ON SCHEMATIC DIAGRAM
SW401 EJECT OFF—ON
SW402 HOLD OFF—ON
SW901 DISC IN OFF—ON
SW902 DISC PROTECT OFF—ON
• Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.
• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the
capacitorwithoutsuchasymbolismicrofarad.Astoelectro-
lytic capacitor, the expression “capacitance/withstand volt-
age” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
• The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas-
sis with no signal given.
• Parts marked with “ ” ( ) are important for
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
POSITION
REF. NO DESCRIPTION
2SA1314 C
2SA2982 C
FRONT
VIEW
(G)
1(D) 2(S) 3
SB0209CP
DA221
1SS373
SB00703Q
TOP VIEW
TOP VIEW
B
(D)
(3)
E
(G)
(1)
C
(S)
(2)
TOP
VIEW
DTC144 TE 2SC4213 B
DMC-J7R(K)COVER1,1P( 98.11.301:45PM y[W 23

DMC-J7R
15
PARTS DESCRIPTIONS
DMC-J7R(K)COVER1,1P( 98.11.301:45PM y[W 24

NORM:200kS / s
1994 / 12 / 15 22:54:19
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL CH1 : 0.00V CH2 : 0.000V Main : 10K Zoom : 10K
CH3 : 0.00V
CH4 : 0.00V
=Trigger=
Mode : NORMAL
Type : EDGE CH4
Detay : 0.0ns
Hold OFF : MINIMUM
T
TP208
(FEOUT)
CK204
(FOK)
TP122
(F+)
CK205
(SENSE)
Stopped
CH1=1mV
DC 10:1 CH3=5V DC 10:1 CH4=2V DC 10:1 (50ms/div)
50ms/div
CH2=500mV
DC 10:1
T
1
4
3
2
1
2
3
4
NORM:100MS / s
1994 / 12 / 16 00:24:17
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL CH1 : 0.00V CH2 : 0.00V Main : 5K Zoom : 5K
CH3 : 0.00V
CH4 : 0.00V
=Trigger=
Mode : AUTO
Type : EDGE CH3
Detay : 0.0ns
Hold OFF : MINIMUM
T
SDTi
MCLK
SCLK
LRCK
Stopped
CH1=2V
DC 10:1 CH3=2V DC 10:1 CH4=2V DC 10:1 (50us/div)
50us/div
CH2=2V
DC 10:1
T
1
4
3
2
5
6
7
8
ENV
1994 / 12 / 16 01:03:40
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL CH1 : 0.00V CH2 : 0.00V Main : 10K Zoom : 10K
CH3 : 0.000V
CH4 : 0.00V
=Trigger=
Mode : NORMAL
Type : EDGE CH2
Detay : 0.0ns
Hold OFF : MINIMUM
T
TP139
(EFM)
TP210
(TEOUT)
TP209
(TOTAL)
Stopped
CH1=1V
DC 10:1 CH3=500mV DC 10:1 (2ms/div)
2ms/div
CH2=2V
DC 10:1
T
1
2
9
10
11
ENV
1994 / 12 / 15 23:31:21
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL CH1 : 0.00V CH2 : 0.00V Main : 10K Zoom : 10K
CH3 : 0.00V
CH4 : 0.00V
=Trigger=
Mode : NORMAL
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM
T
SPDRR
TP601
(VM)
Stopped
CH1=2V
DC 10:1 (50ms/div)
50ms/div
CH2=2V
DC 10:1
T
1
2
12
13
1994 / 12 / 15 08:57:26
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL CH1 : 0.00V CH2 : 0.00V Main : 10K Zoom : 10K
CH3 : 0.000V
CH4 : 0.0V
=Trigger=
Mode : NORMAL
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM
T
TP139
(EFM)
TP210
(TEOUT)
TP209
(TOTAL)
Stopped
CH1=2V
DC 10:1 (2ms/div)
2ms/div
CH2=2V
DC 10:1
1
2
ENV
T
CH3=500mV
DC 10:1
9
10
11
1994 / 12 / 15 09:10:03
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL CH1 : 0.000V CH2 : 0.00V Main : 4K Zoom : 4K
CH3 : 0.000V
CH4 : 0.0V
=Trigger=
Mode : NORMAL
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM
T
CK110
(HPFO)
CK108
(WBO)
Stopped
CH1=500mV
DC 10:1 (20us/div)
20us/div
CH2=2V
DC 10:1
1
2
ENV
16
17
FULL 20MHz
Bandwidth ON Smooth
OFF
1994 / 12 / 18 09:26:46
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL CH1 : 0.00V CH2 : 0.00V Main : 10K Zoom : 10K
CH3 : 0.00V
CH4 : 0.00V
=Trigger=
Mode : AUTO
Type : EDGE CH2
Detay : 0.0ns
Hold OFF : MINIMUM
T
TP208
(FEOUT)
TP210
(TEOUT)
TP651
(SL+)
TP652
(SL-)
Stopped
CH1=2V
DC 10:1 CH3=2V DC 10:1 CH4=2V DC 10:1 (1s/div)
1s/div
CH2=2V
DC 10:1
1
4
3
2
ENV
1
10
14
15
1994 / 12 / 16 01:23:16
=Filter=
=Tracel= P-P 1.280V
=Offset= =Record Length=
Smoothiing : OFF
BW : FULL CH1 : 0.000V CH2 : 0.00V Main : 1K Zoom : 1K
CH3 : 0.00V
CH4 : 0.00V
=Trigger=
Mode : AUTO
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM
T
TP139
(EFM)
Stopped
CH1=2V
DC 10:1 (500ms/div)
500ms/div
1
MORM:200MS/s
9
1994 / 12 / 15 09:58:45
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL CH1 : 0.00V CH2 : 0.00V Main : 10K Zoom : 10K
CH3 : 0.00V
CH4 : 0.00V
=Trigger=
Mode : AUTO
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM
T
TP208
(FEOUT)
TP210
(TEOUT)
SPDRR
TP601
(VM)
Stopped
CH1=2V
DC 10:1 CH3=2V DC 10:1 CH4=2V DC 10:1 (1s/div)
1s/div
CH2=2V
DC 10:1
1
3
4
2
ENV
1
10
12
13
1994 / 12 / 15 08:39:46
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL CH1 : 0.00V CH2 : 0.00V Main : 10K Zoom : 10K
CH3 : 0.00V
CH4 : 0.0V
=Trigger=
Mode : AUTO
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM
T
TP210
(TEOUT)
TP651
(SL+)
TP652
(SL-)
Stopped
CH1=2V
DC 10:1 CH3=2V DC 10:1 (1s/div)
1s/div
CH2=2V
DC 10:1
1
3
2
NORM:1kS/s
10
14
15
1994 / 12 / 15 21:54:52
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL CH1 : 0.00V CH2 : 0.00V Main : 10K Zoom : 10K
CH3 : 0.00V
CH4 : 0.00V
=Trigger=
Mode : NORMAL
Type : EDGE CH2
Detay : 0.0ns
Hold OFF : MINIMUM
T
T
TP139
(EFM)
TP210
(TEOUT)
TP219
(T+)
TP121
(T-)
Stopped
CH1=2V
DC 10:1 CH3=1V DC 10:1 CH4=1V DC 10:1 (500us/div)
500us/div
CH2=2V
DC 10:1
1
3
4
2
ENV
9
10
11
18
DMC-J7R
16
WAVEFORMS OF MD CIRCUIT
DMC-J7R(K)COVER1,1P( 98.11.301:45PM y[W 21

17
J801
C161
R154
Q101 IC202
L202
C601
C622
C202
IC601
C602
L601
L602
L603
L604
C604
C603
L600
C353
C354
D351
Q354
Q352
L801
C805
C804
C874
C130
C609
L609
L610
L608
XL201 C610
C357
D352
C351
Q353
IC351
Q351
C829
R831
D822
C828
IC804
Q803
Q802
C823
C824
R824 C821
C806
C600
C608
C212
C211
R222
IC651
L651
C651
D431
C843
C401
R601
IC201
C172
L171
R415
R844
C844
IC431
C431
R431
R210
R441
R444
R204
C203
R207
R442
C443
C441
R411
C442
R443
R412
R414
R413
R203
L204
C171
IC404
IC441 D201 1
1
1
1
1
1
1
1
1
5
10
15
18 19
20
25
30
35 36
7510 8
14
56
10
1
1
34
6
1
1
34
645
84
5
8
67
12
1
2
3
4
67
12
3
4
54
8
54
5
8
3
4
51
2526
1
5
10 11
15
20
30
35
45
40
50
51
75
76
80
85
90
95
70 65 60 55
100 20
15
10
5
Q401
R400
IC402
C848
L886
R861
C886
C866
D862
IC702
R847
C845
C849 D842
R851
R408
IC821
IC841
C822
C850
R841
R843
C842
R852
R827
R832 R823
C830
C825
R821
R826
R849
R828
R810
R803
R829
R407
R846
R848
C810
R813
R811
C807
R806
R805
R804
C803 D802
R809
IC800
R802
R801 C808
R808
R807
R818
IC801 IC803
R815
D801
R817
R814
D800 BATTERY
TERMINAL (+)
BATTERY
TERMINAL (-)
1010 11 13
1
MAIN PWB-A1 (TOP) 12
43
DC IN
ACEBD
2
1 3 5 7
4
6
The numbers 1to *are waveform numbers shown in page 16.
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD (Component side view)
DMC-J7R(K)COVER1,1P( 98.11.301:44PM y[W 20

The numbers 1to *are waveform numbers shown in page 16.
Refer to the schematic diagram for the value of resistors and capacitors.
JF GHI
2
1 3 5 7
4
6
1
1
100
95
90
85
80
75
1
5
10
13 15
20 24 25
30
35
37
45 36
46
12
70
65
60
55
5150
45 40 35 30 25
20
15
10
5
1
1
11
5
8
11
1
4
5
3
34
6
4
34
5
23
4
34
5
26
76
5
15
10 11
20
14
C103
IC101
C104
C112
C102
IC901
R419
R422
R420
R455
R409
L100
R406
R405 C908
C911
C905
R453
CN451
R902
R901
R908
R907
R903
R904 R922
R921
CN601
R451
R454
R452
C361
R361
C903
R906
R905
C907
C906
C909
C910
C902
R426
R909 R402
C100 R404
R403
C131
R106
CN101
C121
C124
R101
R102
R103
R104
IC401
R425
R423
R424
C106
C107
C109
C110
C111
C122
C123
R205
R206
C205
R161
C165
C201
L201
C826
C865
C868
D861
D841
C869
C951
L822
D821 C952 C864
CN701
R1
R2 R3 R4
R5
R8
R6 R7
R9
R10
R11
C481 R481
C847
C846
L842L841
Q842
C863
IC875
R880 C875
R882
D877
IC876
CN482
R819
IC805
Q801
L871 C878
IC874
R875
D875
D873
IC873
L862
R421 L821
Q822 R872
Q872
D871
C873
Q873
C832 R878
C871 R876
C880
Q871
C877 R881
R879
C881
C879
R877
L863
C827
C831
D831
IC871
C872
IC872
L888
L887
C802
R458
R456
R457
R105
R482
R816
R873
R874
SW401
EJECT
1
1
22
22
FROM PICKUP
FLEXIBLE PWB
P20 3-P
1
1
33
33
FROM AUDIO FLEXIBLE PWB (254)
P19 3-O
1
14
FROM KEY
FLEXIBLE PWB (231)
P20 5-S
1
1
16
16
FROM MECHA
FLEXIBLE PWB (8)
P20 3-S
1
1
7
7
FROM LCD
FLEXIBLE PWB
P20 7-R
SW402
HOLD
17
9
18 16
2
MAIN PWB-A1 (BOTTOM)
15 14
EXT. BATTERY TERMINAL
(220)
TP783
TP489
TP487
TP486
TP807 TP482
TP481
TP483
TP484
TP485
TP809
TP808
TP806
TP803
TP805
TP801
TP802
TP810
TP659
TP210
TP209
TP404
TP405
TP407
TP410
TP403
TP411
TP409
TP408
TP764
TP769
TP774
TP779
TP784
TP790
TP787
TP791
TP792
TP793
TP785 TP781
TP780 TP778
TP777 TP776
TP775 TP773 TP772 TP771
TP770 TP768
TP767 TP766
TP765
TP763
TP762
TP761
TP211
TP208
TP412
TP664
TP653
TP663
TP901
TP651
TP413
TP652 TP654
TP657
TP655
TP601
TP656TP660
TP661
TP665
TP658
TP666
TP662
TP457
TP462
TP460 TP610
TP804
TP464
TP205
TP406
TP456
TP207
TP458
TP451
TP811
TP401
TP401
TP203
TP145
TP139
TP100
TP459
TP461
TP455
TP453
TP452
TP454
TP206
TP201
TP106
TP121
TP109
TP108
TP122
TP120
TP119
TP117
TP111
TP105
TP103
TP101
TP102
TP110
TP115
TP116
TP144
TP114
TP463
TP118
PC BOARD(Component side view)
18
DMC-J7R(K)COVER1,1P( 98.11.301:44PM y[W 17

TO MAIN PWB
P18 5-I
PICKUP UNIT (PU) M902
SLED MOTOR M901
SPINDLE MOTOR
M903
LIFT MOTOR
SW902
DISC PROTECT MECHA FLEXIBLE PWB UNIT (8)
MAGNETIC HEAD
FLEXIBLE PWB (23)
MAGNETIC HEAD
(32)
KEY FLEXIBLE PWB UNIT (231)
CN101
BK
RD
SW901
DISC IN
TO MAIN PWB
P18 4-H
CN601
TO MAIN PWB
P18 5-G
CN451
TO MAIN PWB
P18 2-H
LCD (232)
CN482
KMOQSLNPRT
2
1
3
5
7
4
6
J703
HEADPHONES
J701
LINE
J702
MIC IN
JACK PWB-A2(BOTTOM)
JACK PWB-A2(TOP)
CN701
TO MAIN PWB
P18 3-J
AUDIO FLEXIBLE PWB(254)
L456
C451 L452
C712
L713
R723
C724
L712
L711
C723
R725
R726
C727
C735
Q721
L772
R766
R767
D491
L458
L457
C751
D493
R768
L453
L454
C714
C491
R765
C752
L751
R751
R753
R716
L491 L702
Q711
D494
C713
D492
R492
L703
L704
C703
R701
R713
C711
R703
L714
C726
R729
C721
R730
C722
C736
R724
R728
R727
C775
IC771
C774
C773
L771
C772
C734
C725
C731
L710 C710
C733
R503
R502
IC701
R702
R717
C702
C771
R711
R712
R719
R720
C701
C503 C504
R504
L500
R501
C509
C510
R715
C715
C508
C502
C501
C507
C759
C500
1
1
1
12
13
24
12
13
24
12
13
24
R500 R754
L752
C768
R752
C757
C756
R762
IC501
IC703
C755
R714 C753 R761
C762
C761
C758
C767
C754 R756
R757
8
7
6TP701
TP728 TP727
TP723
TP724 TP729
TP722
TP721
TP725
TP726
TP702
TP592
TP591
TP709 TP708
TP707
TP585
TP586
TP588
TP590
TP714
TP704
TP703
TP705
TP713TP712
TP593 TP711
TP500
TP576
TP581
TP580
TP578
TP575
TP584
TP582
TP579
TP577
TP574
TP573
TP572
TP571
TP570
TP569
TP568
TP567
TP566
TP565
TP564
TP563
1
133
TP562
TP561
5
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
19 20
hL g 198.11.301:52PM y[W 1

ABDFHJCEGI
2
1
3
5
7
4
6
14
13
12
11
10
9
8
7
6
5
4
3
2
1
16 15 14 13 12 11 10 987654321
8
7
6
54
3
2
1
54
321
4
32
1
8765
4321
14
13
12
11
10
9
87
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11 10
9
8
7
6
5
4
3
2
1
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11 27
26
28
29
30
31
32
33
34
35
36
10
9
8
7
6
5
4
3
2
1
5
43
2
1
10
9876
54321
1
2
3
4
1
2
3
4
5
6
7
8
54
321
242322
21
201918
17
161514
13
12 1110 987654321
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
7
6
5
4
3
2
1
1
2
3
4
5
67
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
123456789
26
27
28
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51525354555657585960616263646566676869707172737475
76
77
78
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
10 11 12 13 14 15 16 17 18 19 20 21 2223 24 25
100
50
49
48
98
99
100
1
2
3
4
5
6
7
8
9
10
11
12
242322212019181716151413
25
26
27
28
29
30
31
32
33
34
35
36
48 47 46 45 44 43 42 41 40 39 38 37
1
2
3
4
5
67
8
9
01
1
1
2
1
1
2345
1
2345
6789
10111213141516171819202122232425
22232425
26
27
28
29
30
31
32
33
34
35
36
37
38
39
41
40
42
43
44
45
46
47
48
49
50
51 52 53 54
51 52 53 54
55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
70 71 72 73 74 75
1
2
3
45
6
7
8
1
2
34
5
1
2
3
45
6
7
8
1
2
34
5
12345678910 11 12 13 14 15 16 17 18 19 20 21 22
12345678910 11 12 13 14 15 16 17 18 19 20 21 22
1
2
3
45
6
7
8
1
2
34
5
6
1
1
2
2
33
4
4
5
1
2
34
5
6
1
2
3
1
2
34
5
6
1
2
34
5
6
1234
56
7
89
10
11
12
15
14
13 18
17
16 21 22 23 24
20
19
123456789
101112
151413 181716 2120 23 242219
1
2
3
4
5
7
8
9
4M D-RAM
AUDIO AMP.
CONSTANT
CURRENT DRIVE
POWER DRIVE
IC821
IR3M09N
MAIN PWB-A1
33
1
MIC IN
LINE
JACK PWB-A2
1
7
1
14
FLEXIBLE
PWB
FLEXIBLE
PWB
KEY FLEXIBLE
PWB UNIT
LCD
DRIVER
GND
P-MODE
C-MODE
ENTER
DISPLY
VOL DOWN
VOL UP
BASS
EDIT
REC
SKIP DOWN
SKIP UP
STOP
PLAY LCD
116
SW902 DISC PROTECT
HEAD
PH901
COM
W
U
V
–
+
–+
M
M
M
PWB
FLEXIBLE
PICKUP UNIT
FLEXIBLE
PWB
RF1 RF3 RF4 RF2
F–
T+ F+
T–
F
E
AGND
LDVAR
DGND
DGND
VCC
CVCC
COM
LDON
A B
MP/R
VCC
OPIC
CLOCK
RKEY
RPLAY
VSS
NC
VDD
OUT
CIN
MCCK
EFMO
SPDRR
GND
VCC GND
CSL2
CSL1
CST
COM
WIN
VIN
UIN
UOUT
RF
WOUT
NC
VCC
FG
BRK–
BRK+
STBY
RIB
VOUT
VM
DISCIN
DISCPR
INNSW PDCNT
SPDRF
SLDRF
SLDRR
DCNT1
VG
VC
LG
GND
VD3
FO3
RO1 PGND
RO3
VD3
VD4
PGND
RO4
RO2
RI4
FI4
FI3
RI3
VD4
FO4
RI2
FI2
FI1
RI1
VD2
FO2
PGND
VD2
VD1
PGND
FO1
VD1
OE
PS
CLK
AGND
NC
NC
T+
T–
F–
F+
LDCNT1
LDCNT2
FODRF
FODRR
TRDRF
TRDRR
G
I2
VCC
I1
G
VS
O2 NC O1 NC
NC
PLVDRY
PLVDCI
RKEY
HKEY1
HKEY2
LDVAR
TEMP
SYWR
SYRD
SYRS
RKEY
HSTOP
SYD0
SYD1
SYD2
DSPSCK
DSPDAT
DSPSTB
BEEP
CLOCK
SYD3
SYD4
SYD5
SYD6
SYD7
RPLAY
LDON
OPICGA
RFLAT
VCC
GND
RACLK RADAT
PBLAT RCLAT
PBOPON
MCPGIN
INPGIN INPGCK
EMPH0
LDON HFON
SYD3 SYD4 SYD5 SYD6 VLIM
AVDD
AVREF0
PLVINN
DINT
SENSE FOK
XRT
XRT
FOK
DINT
RESET
SENSE
XT1 XT2
X1
VSS
X2
OEM
VDD
SLCNT3 SLCNT5
SLCNT1 SLCNT4 SLCNT6 SLCNT2
SWPUP
PCNT2
CKSTP
DISCIN
INNSW
DISCPR
PDCNT
VPP
PHOLD
PCNT1
CIN
ELON
PSLINN
PSLDCI
PSLDRY
TEST1
TEST0
SPIN
VDD
EPCS
INPGCK RCPCNT
EEPK RTCCK
EEPD RTCDT
RTCWR
RTCCE
VSS EMPH0 HPLAY HREC
LI
RI
AGND
LIHP
LOUT
RIHP
ROUT
DGND
VEE
VCC
DIN
OPTCNT
INPGCK
INPGIN
MCPGIN
R-CH
R-CH
L-CH
L-CH
RESET
RCAULT
PBAULT
PBMUTE
BEEP
AUDATA
AUSCLK
MCPGIN
INPGIN
INPGCK
OPTCNT
DIN
PBOPON
BEEP
PBLAT
RCLAT
RADAT
RACLK
ADPON
DAPON
DFCK
LRCK
BCLK
ADDATA
DADATA
EMPH1
EMPH0
RMDAT
DEM0
DEM1
RKEY
RPLAY
SCLK
STDO
MCLK
LRCK
STDI
PWAD
PWDA
PBAULT
BEEP
AUDATA
AUSCLK
RCAULT
PBMUTE
RESET
INPGIN
MCPGIN
DIN
OPTCNT
INPGCK
VCCMIC
VCC2.8X
VCC2.8
DGND
VD
SDTI
CMODE
DEM1 DEM0
AOUTL
AOUTR
VCOM
AGND
VB
VA VRDA
VRAD
AINR
VCMR
VCML
AINL
PWDA PWAD
MCLK
LRCK
SCLK
SDTO
ROUT
LOUT
VCC
DGND
RIHP
LIHP
AGND
RI LI
VEE
L-CH
R-CH
KEY
PLAY
DATA
NC
NC
NC
NC
HKEY1
HKEY2
TEMP
AVSS
LDVAR
MDOUT
AVREF1
SYD0
SYD1
SYD2
SYD7
SYWR
SYRD
SYRS
RKEY
VCC
CS
SK
DI
DO GND
PRTCT
BEEP
CNTRY
PCNT1
EAOUT
GND OUT
VCC
PWM
STATE
ROSC
OSC
VREF
EAIN–
DB
EAIN+
OSCIN
OSCOUT
EJECT HDON
DSPSTB
DSPDAT
DSPSCK
RPLAY
HSTOP
KHOLD MCPGIN INPGIN
F–
T+
F+
T–
EFMMON
ROUT
GOUT
TTR
EFMAGI
EFMAGC
AGND
AVCC
EFMI
EFMO
RF2-1
ADAG
ADAGC
ADIPI
ADIPO
ADLPFO
22KO
22KI
WBO
TCGO
AOUT
BOUT
EOUT
FOUT
DVCC DATA
CLOCK
LATCH
DTEMP
DGND
AGND SGAIN
DISC
STBY
AVCC
BIAS
FIN
EIN
BIN
AIN
TCGI
RFADD
REFO
REFI
RF4
RF3
RF2
RF1
BIAS
ADIP
AGC
EMF
AGC
DIFF
DIFF
SW
and
R
HPF
LPF
LOGIC
LDCNT1
RAA10
ACRCER
PLCK
SYRS
FEMON
DADATA
ADDATA
DFCK
BCLK
LRCK
DGND
VDD3
DOUT
DIN
X1O
X1I
VPD
VXI
ADPON DAPON
OPTCNT
DCNT1
EMPH1
LDCNT2
X700KO
TOTMON
TEMON
SBCK
SBO
SBSY
SFSY
FOK
SENSE
COUT
MCCK
DINTX
RSTX
SYSD0
SYSD1
SYSD2
SYSD3
SYSD4
SYSD5
SYSD6
SYRDX
SYWRX
VBAT WBI TEST1 TEST0 FODRR FODRF TEST2 X176KO
X176KO
TRDRF TRDRR SLDRF SLDRR SPDRF SPDRR TCG AGND AIN FIN EIN BIN
DGND
VDD1
VDD1
DGND
EFMI AVCC DGND VDD1
RAD0
RAD1
RAWEX
RARASX
RAA9
DGND
VDD2
RAD3
RAD2
RACASX
RAOEX
RAA8
RAA7
RAA6
RAA5
RAA4
RAA0
RAA1
RAA2
RAA3
TCRS
EFMO I/O1
I/O2
WE
RAS
A9
A0
A1
A2
A3
VCC A4
A5
A6
A7
A8
OE
CAS
I/O3
I/O4
GND
GND
VCC
OSCOUT
OSCIN
EAIN+
DB
EAIN–
VREF
OSC
ROSC
STATE
PWM
VCC
OUT
GND
EAOUT
RMDAT
OPICGA RFLAT RACLK RADAT PBLAT RCLAT PBOPON
VCC
GND
OUT
VSS
VDD
PLVDRY
PLVDCI
PLVINN
HPLAY
HREC
RCPCNT
PCNT1
RCPCNT
DSPDAT
DSPSCK
DSPSTB
PHOLD
PCNT1
PCNT2
HPLAY
HREC
RPLAY
PCNT2
PHOLD
PSLDCI PSLINN PSLDRY PLVDCI PLVINN
PLVDRY
PDCNT
DISCPR
INNSW
DISCIN
ADDATA
DFCK
BCLK
LRCK
DIN
ADPON
DAPON
EMPH1
OPICGA
LDVAR
LDON
TEMP
RFLAT
RACLK
OPTCNT
RADAT
XRT
PSLDRY
PSLDCI
PSLINN
RKEY
HKEY2
HKEY1
MICOM2.5V
EFMO
HSTOP
HPLAY
HREC
HKEY2
HKEY1
FODRF FODRR TRDRF TRDRR SLDRF SLDRR SPDRF SPDRR
LDCNT1
LDCNT2
DCNT1
FOK
SENSE
CIN
MCCK
DINT
SYD0
SYD1
SYD2
SYD3
SYD4
SYD5
SYD6
SYD7
SYWR
SYRD
SYRS
DADATA
NC
NC
97 SYSD7
D493
015Z5.1Y
CN101
L863
4.7
D861
RB491D
C863
1/10
C864
33/6.3
L171
10
100K
R442
R444
2.7K
C911
0.1
L651
0.47µH
C600
15/10
D494
15AZ7.5Y
C774
1
CN451
CN482
C843
100P(CH)
C868
1
C865
1/10
L862
47
C869
33/6.3
POWER DRIVE
IC841
IR3M09N
L841
4.7
R844
15K
C848 1/6.3
R846
10K
C845
47P
(CH)
C844
100P(CH)
R843
100K C842
22P(CH)
R848
220K
R847
330K
R852 1.5M
IC202
IX2567AF
Q101
2SA17457
C104
0.027
C107
0.012 C131
330P(CH)
C202
10/6.3
C109
1/6.3 C106
0.22/16
R101
22K
R102
22K
C201
1
C110 0.22/16
CK112
IC201
LR37648B
R222
1M
R207
680
IC101
IR3R55
C111
0.0033
C102
1/6.3
R104
22K
R103
22K
C161
1/6.3
L202
10µH
R154
1.2K
L100
10µH
L201 0.47µH
C100
10/6.3
R841
100K
C850
0.001
CN701
R849 33K
D822
RB521S30
R831
100K
C829
0.01
C823
100P(CH)
L821
4.7
R823
100K R828
270K
R824
15K
C825
68P
(CH)
R829
33K
C828
1/6.3
R827
300K
R826
10K
R821 100K
C830
0.001
R832
3.3M
C822
39P
(CH)
C824
100P(CH)
C847
10/10
L842
10
C846
1/10
C827
3.3/10
D821
F1J2F
C826
1/10
L822
10
C821
220/4
C810
0.33/10
R811
180K
R810
180K
C172
33/6.3
C171
33/6.3
XL201
33.8688MHz
C211
5P(CH)
R203
100
C212
5P(CH)
C622
2.2
IC601
MPC17A39
C443
0.47/10 C441 10P(CH)
C442
680P
IC441
TC7W14FU
INVERTER
R443
39K
R441
12K
R408
100K
IC404
7SH00FU
R403
22K
R404 150K
IC401
IX2680AF
TP144
C103
1/6.3
C902
0.01
10K
R909 R908
100K
R907
180K
R903
150
R904
22K
R901
1
R902
1
IC901
BA6965FV
C907
0.0022
C905
0.0022
C909
0.047
C906
0.0022
C908
0.47
C910
0.047
100K
R905
R906
270K
C903
3.3/10
C866
1/10
D862
RB521S30
IC702
TK71345M
R878
100K
R874
470K
C878
3.3/10
R873
1K
IC872
TC7W32FU
C877
10/6.3 IC871
S8327B30
C874
10/10
C872
1/6.3
Q871
NDS335N
C871
1/6.3
D873
1SS372
C873
1
C849
0.01
R851
100K
D842
RB521S30
D802
SB10015C
IC803
NDH831N
C431
0.047
1SS361
D431
330K
R431
R482
18K
C481
0.1
R481
36K
R421 100K
R161
1.2K
C165
0.033
R205
560K
C205
0.1
R206
220K
C651
1
IC651
LB1638M
R420
1K
R419
1K
C357
0.1 IC351
74ACT02F
HEAD DRIVE
C354
0.1
C351
100P(CH)
D352
SB0209CP
D351
SB0209CP
0.039
C361
R361
8.2
C353
10/6.3
R423
22K
R425
22K
R424
22K
C875
0.22/16
R877
100K
R876
100K
C880
0.01
C879
1/6.3
IC874
TC7S00FU
CHARGE DRIVER
R882
100K
R881
100K
R402
10K
R105
390K
Q351
2SK2909
Q353
2SK2909
Q352
2SK2911
Q354
2SK2911
C123
390P
C124
390P
C121
270P(CH)
C122
270P
(CH)
R204
1K
C203
0.1
C207
0.1
R879
100K
R880
100K
R809
100K
R422 33K
R412
10K
R411
100K
IC402
S29L294A
R415
1K
R413
1K
R414
1K
C401
0.1
SW401
EJECT
R406
100K
SW402
HOLD
R405
10K
R407
10K
R409
100K
D877
1SS360
C886
10/10
L886
0.47µH
IC804
RN4904
Q842
NDS335N
Q822
NDS335N
C881
1/6.3
D875
1SS378
S80821LN
IC431
IC875
TK71325M
R872
100K
Q872
DTC144 EE
Q873
2SJ305
IC873
S80827LN
Q401
2SA17457
R400
3.9K
L601
47µH
C601
1/6.3
L602
47µH
C602
1/6.3
L603
47µH
L604
47µH
C603
1/6.3
C604
1/6.3
L600
2.2µH
L608
47µH
R601
56K
TP601
R458
56K
R457
18K
R456
8.2K
R455
5.6K
R454
56K
R453
18K
R452
8.2K
R451
5.6K
L610
47µH
L609
47µH
C610
1/6.3
C609
1/6.3
R922
100K
R921
330
L204
R861
100K
R106
56K
C608
3.3/10
R426
100K
D831
1SS372
C831
0.1
C832
0.1
D201
1SS369
D841
F1J2F
D871
RB491D
47
TP901
R875
100K
IC876
RN4904
R814
3.9K
R818
10K
R815
3.9K
C802
1
Q801
2SD1950
D801
015Z5.1Y
R816
1.2K
IC800
HN1C03FU
R801 680K
R819
270
C808
1/6.3
R808
39K
R807
27K
R806 680K
C807
0.1
R805
470K
C806
3.3/10
L801
1
C805
100/6.3
C804
1/6.3
IC801
HAT1025R
CONSTANT
CURRENT DRIVE
R804 100K
Q803
DTC144 EE
Q802
DTC144 EE
R803
100K
R802
390K
C803
0.1
IC805
UMD3N
D800
RB491D
L888
CORE
L887
CORE
C112
0.033
R817
680
C759
0.056
C761
1/6.3
C762
1/6.3
C702
10/6.3
R756
27K
R701
100
C756
0.68
R762
3.3K
R761
3.3K
R754
330K
R757
27K
C757 0.68
IC703
IR3R54N
AUDIO AMP.
IC701
IR3R54N
C703 0.01
R703
150K
C758
3.3/10
C755
0.01
C753
1
C701
10/6.3
R702
100
L771
47µH
C771
33/6.3
C772
33/6.3
C773
0.22/16
IC771
TK71225M
C775
0.01
L710
0.47µH
C710
0.1
C510
2.2
C509
2.2
R502
470
R501
470
C502
0.0022
C501
0.0022
C504
3.3/10
C503
3.3/10
L500
4.7µH
L772
4.7µH
C508
1/6.3
C500
10/6.3
IC501
AK4514VF
R500
4.7
C507
10/6.3
D492
015Z5.1Y
L491
4.7µH
C722
3.3/10
C721
3.3/10
C723
0.001
C735
0.001 C736 0.01
C451
0.001
C724
0.001
C731
0.22
R727
10K R723
6.8K
R724
6.8K
C725
3.3/10
C727
1
Q721
2SC4213B
R725
100
R726
39K
R728
1K
C726
3.3/10
R713
10K
Q711
RN1444A
R717
1K
C712
100P
(CH)
C714
1/6.3
(CH)
R714
10K
C713
1/6.3
C711
100P
(CH)
C715
0.1
R715
100K
R716
100K
C734
0.1
C733
0.1
R720
8.2K
R719
8.2K
R712
5.6K
R711
5.6K
C754
1
R753
150K
L751
47µH
L752
47µH
C768
0.22/16
R752
82
C767
0.22/16
R751
82
R729
2.7K
R730
2.7K
TP721
C491
0.1
D491
015Z5.1Y
R504
20K
R503
20K
R767
1K
R768
1K R766
10
R765
15
C751
0.082
C752
0.082
R492
1K
C952
47/4
C951
47/4
L452
L454
L453
L457
L458
L456
C130
0.1
J702
J703
HEADPHONE
J701
J801
DC IN
L702
L703
L713
L714
L704
L712
L711
X700K
M902
SLED MOTOR
M901
SPINDLE
MOTOR
M903
LIFT MOTOR
SW901
DISC
IN
X176KO
CK102 CK103 CK104
CK101
TP145
TP132
CK108
TP133
TP130
TP131
CK107
TP100
CK111
CK110
CK109
TP139
TP119
TP115
TP105
TP101
TP109
TP106
TP102
TP108
TP103 TP114
TP110
TP118
TP111
TP121
TP122
TP120
TP117
TP116
CN601
TP651
TP652 TP653
TP654 TP655 TP656 TP657 TP658 TP659 TP660 TP661 TP662 TP663 TP664 TP665 TP666
TP610 NAND GATE
MOTOR DRIVE
TP401
TP403
TP402
TP413
TP208
CK204
CK205
CK206
CK203
CK202
CK201
TP211
TP210
TP209
TP202
TP201
CK207
TP206
TP203
TP204
TP205
TP200
TP405
TP404
TP406
TP412
TP407
TP411
TP408
TP409
TP410
TP810
TP762
TP763
TP764
TP765
TP766
TP767
TP768
TP769
TP770
TP771
TP772
TP773
TP774
TP775
TP776
TP777
TP778
TP779
TP780
TP783
TP784
TP785
TP787
TP781
TP761 TP561
TP562
TP563
TP564
TP565
TP566
TP567
TP568
TP569
TP570
TP571
TP572
TP573
TP574
TP575
TP576
TP577
TP578
TP579
TP580
TP581
TP582
TP584
TP585
TP586
TP588
TP789
TP790
TP791
TP792
TP793
TP590
TP591
TP592
TP593
TP453
TP452
TP451
TP461
TP454
TP464
TP455
TP456
TP457
TP458
TP459
TP460
TP462
TP463
TP481
TP482
TP483
TP487
TP486
TP485
TP484
TP729
TP712
TP713
TP711
TP714
TP703
TP705
TP708
TP701
TP709
TP704
TP702
TP707
TP722
TP723
TP724
TP725
TP726
TP 727
TP728
TP807
TP808
TP809
BATTERY
TERMINAL
EXT.BATTERY
TERMINAL
TP805
TP806
TP804
TP803
TP811
TP207
TP500
TP802
TP801
DTC144EE 2SJ305
TC7S00FU LB1638M
CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended
parts (refer to parts list). indicates safety critical components. For continued protection against risk of fire,
replace only with same type and rating fuse(s). To reduce the risk of electric shock, leakage-current or resistance
measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the
appliance is returned to the customer.
NOTES ON SCHEMATIC DIAGRAM can be found on page 14.
The numbers 1to *are waveform numbers shown in page 16.
hL g 198.11.301:53PM y[W 2