Denon D-A03 User manual

Hi-Fi Personal Audio System
SERVICE MANUAL
MODEL D-A03
PERSONAL AUDIO SYSTEM
●●
●●
●Some illustrations using in this service manual are slightly different from the actual set.
14-14, AKASAKA 4-CHOME, MINATO-KU, TOKYO 107-8011 JAPAN
Telephone: [phone]
X0130 337 NC 0112
For Hong Kong,
U.S.A. and Canada model
AUX
M D
C D
POWER
VOLUME
FM/AM
DISPLAY
TOC/NAME
TIMER/DELETE
PLAY MODE
PROG.
ENTER CLEAR
N.SPEED
REC
TUNING/
PRESET
SDB
E Q
REC MODE
HI.SPEED
power loading mechanism
REMOTE
SENSOR
MENU TUNING
RANDOM INTOR SCAN ROCK POP JAZZ DANCE FLATT
SLEEP TIMER OFF TOTAL
PHONES
PERSONAL AUDIO SYSTEM/CD-MD RECEIVER
D-A03
REMOTECONTROL UNIT
VERTICAL LOADING SYSTEM
COMPACT DISC PLAYER
EQ AUXFM/AM
C D
POWER
VOLUME
SDB
TUNING/
PRESET
REMOTE
SENSOR
PHONES
VERTICAL LOADING SYSTEM
COMPACT DISC PLAYER
PERSONAL AUDIO SYSTEM / CD STEREO RECEIVER
40-STATIONPRESET MEMORY
6-MODEPRESET EQUALIZER
REMOTECONTROL UNIT
Hong Kong model U.S.A. and Canada model

2
D-A03
SPECIFICATIONS (There is no MD Section in the U.S.A. and Canada model)


Amplifier Section
Practical maximum output: Front speaker 11W (5.5W + 5.5W EIAJ)
Audio input/output jacks: MONO output terminal, AUX input terminal, 3.5mm headphone jack


Tuner Section
Receive frequency bands: FM: 87.50MHz to 108.00MHz
AM: 520kHz to 1710kHz (U.S.A. and Canada model)
522kHz to 1611kHz (Hong Kong model)
Receive sensitivity: FM: 1.5µV/75Ω/ohm
AM: 20µV
FM stereo separation: 35 dB (1 kHz)


CD Player Section
Wow and flutter: Below measurement limits (±0.001% W peak)
Sampling frequency: 44.1kHz
Light source: Semiconductor laser


MD Section (Hong Kong model)
Format: MiniDisc digital audio system
Wow and flutter: Below measurement limits (±0.001% W peak)
Sampling frequency: 44.1kHz
Recording method: Magnetic modulation overwrite method
Light source: Semiconductor laser


Clock and Timer Section
Clock system: Within one minute per month
Timers: Everyday timer (One)
Recording timer (One)
Sleep timer (120 minutes, MAX)


Common Section
Power supply: 120V AC, 60Hz (U.S.A. and Canada model)
115/230V AC, 50/60Hz (Hong Kong model)
Power consumption: 29W
Approximately 0.8W during standby
Maximum external dimensions: 390 (W) ×280 (H) ×165 (D) mm (Including feet, knobs and terminals)
Mass: 5.3kg


Remote Control (RC-910: Hong Kong model, RC-911: U.S.A. and Canada model)
Remote control system: Infrared pulse
Power supply: 3V DC (using two R6P/AA type batteries)
Maximum external dimensions: 49 (W) ×140 (H) ×30 (D) mm
Mass: 120g (including batteries)
* For improvement purposes, specifications and functions are subject to change without advanced notice.
SAFETY PRECAUTIONS
The following check should be performed for the continued protection of the customer and service technician.
LEAKAGE CURRENT CHECK
Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis
resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the
power cord is less than 460 kohms, the unit is defective.
Licensed product based on U.S. and overseas patents of Dolby Laboratories Licensing Corporation.

3
D-A03
DISASSEMBLY
(Follow the procedure below in reverse order when reassembling)
1. Rear Cover & Front Panel
1) Remove 14 rear screws
1
and 4 (E3: 2) bottom screws
2
on the Rear Cover.
2) Disconnect connectors and wire
3
~
7
on the Front Panel.
The Rear Cover and Front Panel can be detached
respectively.
2. Main P.W.B.
1) Remove 5 screws
8
.
2) Disconnect 2 FFCs, 10 connectors on the Main P.W.B.
2
8
4
5P Connector
3
4P Connector
5
6P Connector
71P Earth Lug
611P Connector
Connectors
Main P.W.B.
Connectors
FFC
FFC
10P Connector
3P Connector
1
1
1
8

4
D-A03




CD Door Bracket
Main Chassis
CD Door Lens
3. MD Mecha.
1) Remove 3 screws 9.
2) Disconnect 1 each FFC and connector on the Main P.W.B.
4. CD Mecha. Chassis
1) Remove 4 each screws

and

from the front side to
detach the CD Door Lens and CD Door Bracket.
2) Remove 6 screws  and take off the Main Chassis.
9
MD Mecha.
5. CD Mecha.
1) Remove 4 screws ! fixing the Bracket.
2) Detach the CD Mecha. upward as shown to the arrow
direction.
!
!
FFC
Connector
Rubber
(Green) Collar
(White)
Rubber
(Green)
Rubber
(Blue)


5
D-A03
6. Speaker Box (L & R)
1) Remove 4 screws " .
2) Disconnect 2 connectors.
8. Power P.W.B.
1) Remove 6 screws
$
.
2) Disconnect 1 connector.
7. Tuner P.W.B.
1) Remove 2 screws # .
"
"
#
$
Speaker
Box (L)
Speaker
Box (R)
Tuner P.W.B.
Power P.W.B.
Connector
$

6
D-A03
ADJUSTMENT


TUNER SECTION
Connections and adjustment point
AM FMG
AM SG
FM stereo modulator
FM SG
Modulation frequency: 400Hz
Modulation factor: 30%
Test loop antenna
Loop antenna
To TP
To Output Terminal
Digital Voltmeter
Distortion Meter
Separation Meter or
Electronic Voltmeter
To Output Terminal
Antenna Terminal
Rear Panel Side
75 ohms
Coaxial Cable
Modulation frequency: 1kHz
L+R: 90% (67.5kHz Dev.)
Pilot: 10% (7.5kHz Dev.)
75kHz Dev.: 100%
60cm
T401
T404
TUNER PWB
T403 T402
R419
RA25
TC401
FM ALIGNMENT (BAND BUTTON: FM, AUTO)
Input Output
Step Alignment
Item
Tune-in Point
(Channel Setting) Measuring
Equipment Frequency Level Modulation Connect to Measuring Equipment Connect to Align Part Set Value Remarks
1FM DC
Balance 98 MHz FM SG 98 MHz 60 dBµ1 kHz 75 kHz dev
FM Ant
Te r m i n a l
Digital
Voltmeter
Both Leads
of R425 T404 ±20mV Align with Mono Modulation Signal
AM ALIGNMENT (BAND BUTTON: AM)
Input Output
Step Alignment
Item
Tune-in Point
(channel Setting) Measuring
Equipment Frequency Level Modulation Connect to Measuring Equipment Connect to Align Part Set Value Remarks
E1:522kHz
E3:520 kHz T403 E1: 1.3±0.2V
E3: 1.0±50mV 
1 Band Edge E1:1611kHz
E3:1710 kHz

Digital
Voltmeter
Both Leads
of R419 
Approx.
E1: (7.6±0.5V)
E3: (8.3±0.5V)
No Adjustment
Required
2 IF No Broadcast Area AM SG (900 kHz) No AGC
Effects 400 Hz 30% Loop Ant Electronic Voltmeter
LINE 1
Output
Te r m i n a l
T401 Maximum
Output 
3Tracking E1:603 kHz
E3:600 kHz AM SG E1: 603 kHz E3: 600 kHz
No AGC
Effects 400 Hz 30% Loop Ant Electronic Voltmeter
LINE 1
Output
Te r m i n a l
T402 Maximum
Output 
4Tracking E1:1404 kHz
E3:1400 kHz AM SG E1: 1404 kHz E3: 1400 kHz
No AGC
Effects 400 Hz 30% Loop Ant Electronic Voltmeter
LINE 1
Output
Te r m i n a l
TC401 Maximum
Output 
5 Repeat Steps 3 and 4, and set the output to maximum.

7
D-A03
CD SECTION
1. RF level Confieming
CD Servo Micon PWB Probe
Oscilloscope
RF0
V
REF
10:1 +
−
Connection
1. Press CD Play/Pause ( ) button
to make it playback state.
2. Measure Iop.
Step
Eye Pattern
2. Pickup
Connection
Step
• Set input mode to
ALTERNATE or
CHOPPER.
CheckOscilloscope
A
A=0.8~1.2V
1. Press CD Play/Pause ( ) button
to make it playback state.
2. Check RF level with oscilloscope.
3. Confirm that the waveform is in good
shape.
(eye pattern in center must be
able to discriminate clearly.)
VH
50mV/div
0.2µs/div
or
0.5µs/div
•Since this CD system has the built-in automatic adjustment function, re-adjustment is not necessary when replacing the
pickup.
Therefore, any combination of PWB and pickup can be made freely.
As the automatic adjustment is performed every time the disc is changed, each disc can be played in the most
appropriate condition.

MAIN UNIT
un5V(MICON)
(tuner,AUDIO)
(MD)
(CD)
4p
Terminal
P.W.B.
LCD
8com,60seg
LCD
Controller
LC75811W
DISPLAY UNIT
BACK light
TUNER UNIT
FM FRONTEND
KCF216
FM IF/DET/MPX
AM RF/IF/DET
LA1844
PLL
LC72131
MICRO
COMPUTER
M38199
MD UNIT
MDM08AD
(Hong Kong Model)
ELE.VR SYSTEM
LC75342M
74VHC08
DSP
TC94A14FA
RF AMP
TA2157F
Motor driver
LA6558 CD MECHA
CD4LXWNK
AUX IN
SUB
WOOFER
(There is no MD Section in the U.S.A. and Canada model)
REMOTE
Sensor TACT KEY
Reset
MUTING
Power AMP
BA5415
AC IN
- |<| -
6V
10V
6V
8V
Door driver
BA6286
CD DOOR
Reg.
8
76
5
4
3
2
1
A
B
C
D
E
D-A03
8
BLOCK DIAGRAM

9
D-A03
TEST MODE (There is no MD Section in the U.S.A. and Canada model)
From power off state to TEST mode
To enter into the TEST mode, plug the AC cord to the wall outlet while pressing the CD PLAY (CD ) button and
TUNER button simultaneously.
The version information is displayed initially.
Thereafter press the SKIP UP/DOWN button to select the TEST mode and then press the CD STOP button to determine it.
Press the DIRECT key during version display to obtain the designated TEST mode directly.
No. TEST MODE DIRECT DISPLAY
1 CD TEST CD PLAY (CD ) CD MENU
2 MD TEST MD PLAY (MD ) MD MENU
3 TUNER TEST TUNER TUN MENU
TEST MODE
Cancelling the TEST Mode
In each TEST mode, press the POWER button to display COMPLETE for 1 second and then cancel the TEST mode.
In the MD TEST mode, press the POWER button again.
SKIP-DOWN
SKIP-DOWN
SKIP-UP
With SKIP-UP button
Version display
to CD-PLAY
Version display
to MD-PLAY
Version display
to TUNER
Version display
SKIP-DOWN
SKIP-UP
Test mode

10
D-A03
1. CD test
Outline: Readout of the set value after automatic adjustment (for judging difference from initial value)
Forced operation of pickup (Inner/Outer circumference feed)
During the PLAY mode, the number of errors accumulated for 10 seconds (750 frames) is displayed.
Basic CD operation by CD-PLAY button
During the TEST mode, the display is turned on and the following buttons become effective.
TNO Display
N: Normal speed
H: Double speed Time Display
Operation
1. CD-PLAY: CD operation according to steps
STEP 1: LD ON by pressing CD PLAY button in the stop mode
STEP 2: Focus On by pressing CD PLAY button in STEP 1
STEP 3: CLV servo ON by pressing CD PLAY button in STEP 2
STEP 4: Tracking servo ON by pressing CD PLAY button in STEP 3
STEP 5: Sub-code readout/display by pressing CD PLAY button in STEP 4
* Keep pressing the CD PLAY button for more than 1 second to shift to STEP 5 directly.
2. CD STOP : To stop the playback operation (shifting from each step to the stop
mode) / To reset display (during display of coefficient)
3. CD SKIP-UP ( ) : Forcible shift in the pickup FWD direction
4. CD SKIP-DOWN ( ) : Forcible shift in the pickup REV direction
Sliding is stopped when the PU_IN switch is turned on.
5. TUNER : Automatic adjustment (at the present pickup position)
6. POWER : Canceling the test mode
7. VOLUME UP/DOWN : To read the coefficient register while the CD operation is stopped/
To display the error number during CD playback
8. CD OPEN/CLOSE : Normal open/close operation
Readout of the adjusted value
Press the VOL.UP/DOWN button during the stop mode to read the following items.
Press the CD-STOP button to return to the normal display.
Item Display Max Type Min
Focus balance _ _ F B : x x 7 F 0 0 8 0
Focus gain _ _ F G : x x 1 F 0 0 E 0
Tracking balance _ _ T B : x x 7 F 0 0 8 0
Tracking gain _ _ T G : x x 1 F 0 0 E 0
Foucus offset F O F F : x x 7 F 0 0 8 0
Tracking offset T O F F : x x 7 F 0 0 8 0
RFRP R F R P : x x 7 F 0 0 8 0
Even if the CD-PLAY button is pressed initially, automatic adjustment is not obtained. Press the TUNER button in
the stop mode to gain CD-PLAY for automatic adjustment. Thereafter press the CD-STOP button to stop automatic
adjustment.
Press the VOL. UP/DOWN button to display automatically adjusted values.
Readout of error numbers
Press the VOL.UP/DOWN button during playback to display the number of errors accumulated for 10 seconds
(750 frames).
Press the CD-STOP button during ERR display to return to the normal TEST mode display.

11
D-A03
Double-speed mode
Press the MD-REC button in the stop mode to switch to the double/constant-speed mode cyclically.
During the double-speed mode, lights up.
N
H
TNO Display
N:NORMAL SPEED
H:HIGH SPEED
STEP NO Display
Time Display
TNO Display
STEP NO Display
Time Display
Coefficient name Coefficient
Readout of coefficient
2.Time display: Blank from the stop
mode to STEP 4
Lights when double-speed mode
1.STEP NO. : 0 when stopped
CD TEST
2. MD test mode (Refer to page 12 and after.)
Button used during MD test mode
Button Name Function
CD-PLAY To feed the menu of the TEST mode (1) (to feed the menu relating to adjustment and EEPROM)
TUNER To feed the menu of the TEST mode (2) (to feed the menu mainly relating to continuous
playback and recording)
AUX To feed the menu of the TEST mode (3) (to feed the menu of INNER and JUMP SELECT, etc.)
MD REC To feed the menu of the TEST mode in reverse (to feed the menu in each test mode in reverse)
MD-PLAY To select, determine and start the menu
MD-STOP To stop each test item and to select the next upper menu.
(M-) SKIP-UP ( ) 1. Forced slide feeding (FWD) 2. JUMP operation 3. Address setting value up, etc.
(M-) SKIP-DOWN ( ) 1. Forced slide feeding (REV) 2. JUMP operation 3. Address setting value down, etc.
VOL-UP Set value UP
VOL-DOWN Set value DOWN
CD-STOP 1. To switch laser by EJECT 2. To switch display during continuous playback, etc.
POWER To operation mode without automatic adjustment
MD-EJECT Normal EJECT operation

12
D-A03
MD SECTION
Enter the test mode, adjust or set as shown in the following table according to the repair operations.
Repair
Operations
PICK replacement
HEAD replacement
MECHANISM
replacement
MAIN PWB
replacement
MD microcomputer
replacement
MD LSI
replacement
RF IC replacement
EEPROM IC
replacement
Execution item
required
TEMP
basic
setting
TEMP EEPROM_SET TEST-CANCEL AUTO-YOBI AUTO-ADJ AUTO-AFB TEST-CANCEL TEST-PLAY TEST-REC
Checking
EEPROM
setting
Writing the
EEPROM
setting
AUTO-YOBI
adjustment
AUTO-
adjustment
AUTO-AFB
adjustment
Writing the
EEPROM
setting
Operation check
1
1
1
2
2 3 4 5 6 7 8
3 4 5 6 7 8
4 5 6 7 8 9
4 5 6 7 8 9
4 5 6 7 8 9
1
2
1 3 4 5 62
3 42
3
3
3
2
2
2
1
1
1
1 8 9
number to and indicate the order of inplementation.
"−" is an item that you don’t have to execute.
The EEPROM writing result is shown at the end of the test mode
OK_EEPROM: "SET" and "YOBI COMPLETE" were wirtten normally
WR_EEPROM: Although "SET" was written normally, it was not written in the "YOBI COMPLETE" state
Perform "AUTO-YOBI" adjustment. After making a normal adjustment.
Write the preliminary adjustment into the EEPROM.
NG_EEPROM: "SET" could not be written.
Check the connection between the MD microcomputer and the EEPROM.
1. Preparation for adjustment
Test disc
Type Test Disc
1 High reflection disc TGYS1 (SONY) for playback
2 Low reflection disc Mini disc for recording
3Transparent disc for head alignment
2. Test Mode
Test mode setting method
1. While the CD PLAY (CD ) button and the TUNER button are pressed down together, press the POWER button
and then MD PLAY button. (State
A
is changed to state
B
.)
2. Insert the playback-only disc 1 (high reflection disc) or the recordable disc 2 (low reflection disc).
(State is changed to C.)
Above procedures will set the unit to the test mode.
A
tsm 22 e: TEST MODE represents version of MD microcomputer.
STOP state represents version of EEPROM data.
BEJECT (When the MD STOP button is pressed in the Cstate, the indication A
is
restored. To restore Cagain, press the CD PLAY (CD ) button.)
CAUT AJST

13
D-A03


Entering the specific mode
Whenever the CD PLAY (CD ) button is pressed, the mode is changed.
If the REC button is pressed instead, the mode will change in the opposite order.
RESULT
AUT YOBI
(AUTO prelimiraty adjustment)
MNU YOBI
(MANUAL prelimiraty adjustment)
AUTO AJST
(AUTO adjustment)
EEPROM_SET
(EEPROM setting)
ERR DATA
(ERR DATA)
MNU AJST
(MANUAL AFB adjustment)
MAN AFB
(MANUAL advanced
AFB adjustment)
AUT AFB
(AUTO AFB adjustment)
RST YOBI
(RESULT YOBI)


Cancel of test mode
The mode is written on EEPROM by pressing the POWER button. If the POWER button is pressed again, the unit
returns to the normal state.
* Before pressing the POWER button, make sure that the AUTO pre-adjustment, AUTO adjustment, and AUTO AFB
adjustment have been completed.
* After the value of EEPROM is changed or the AUTO pre-adjustment, AUTO adjustment, and AUTO AFB adjust-
ment are performed again, write on EEPROM by pressing the POWER button. (When the POWER button is
pressed, data is written on EEPROM.)
* When the value of EEPROM has been changed, write the data on EEPROM once. To preform adjustment using
the data, set the unit to the TEST mode again, perform AUTO pre-adjustment, AUTO adjustment, and AUTO AFB
adjustment, and then write the data again on EEPROM.
• Test mode
1. Laser Measurement Mode •To Temp Setting (EEPROM_SET)
•To Control Setting (EEPROM_SET)
•Laser power measuring (Rec/Play power)
2. Auto Adjust Mode •Performs automatic adjustment (after adjustment, grating adjust mode)
3. AFB Adjust Mode •Performs focus adjustment
RST YOBI •Not necessary in servicing, do not enter in these modes
RESULT
MNU YOBI
MNU AJST
ERR DATA
4. EEPROM Setting Mode •Changes various digital parameters manually
5. Auto Pre-adjust Mode •Performs automatic pre-adjustment
6. Test-play Mode •Performs continuous play from the address defined
•C1 error rate, ADIP error rate measurements
7. Test-rec Mode •Performs continuous recording from the address defined
1. EJECT mode
Pickup Laser Power Check
The laser power in recording/playback can be checked with a laser power meter. However, only confirmation should be
performed as the measurement might be inconstant. Change the pickup only when it is largely out of spec.
Reference value (at the room temperature 25°C)
At playback (ppw): 0.72±0.1 mW
At recording (rpw): 5.5±0.5 mW
Note: Be careful not to stare at laser emission as your eyesight may be damaged.
Step No. Setting Method Remarks Display
Step 1 Test mode eject status _ _ EJECT_ _ _
Step 2 Press CD STOP button Playback power output status ppw_ _ _ _ _ _ _
Step 3 Press CD STOP button Recording power output status rpw_ _ _ _ _ _ _
Step 4 Press CD STOP button Not for service, don't enter xpw_ _ _ _ _ _ _
Step 5 Press TUNER button To Temp Setting of EEPROM_SET
(Refer to Temp Setting of EEPROM)

14
D-A03
2. AUTO pre-adjustment mode (Low reflection disc only)
: Adjustment name
3. AUTO adjustment mode
Step No. Setting Method Remarks Display
Step 1 Test mode stop status tsm e
Step 2 Press once the CD PLAY button Auto adjustment menu AUTO_AJST_
Step 3 Press REC button Auto pre-adjust menu _AUT_YOBI_
Step 4 Press ENTER button change as follows during auto-adjust :_ _ _ _ _ _
HAo TCO
End of adjustment If the adjust OK, go to Step 5
If the adjust NG, go to Step 6
Step 5 Grating adjustment _COMPLETE_
Adjust value output
Press STOP button Step 3
Step 6 Adjust value output Can’t_ADJ.
Press STOP button Return to Step 3
: Adjustment name, : Measured value, : Address
Step No. Setting Method Remarks Display
Step 1 Test mode stop status tsm e
Step 2 Press CD PLAY button Auto adjust menu AUTO_AJST_
Step 3 Press MD PLAY button With high reflection disc, change as follows : _ _ _ _ _
PEG---HAG
With low reflection disc, change as follows
PEG---LAG
End of adjustment If the adjust OK, go to Step 4
If the adjust NG, go to Step 7
Step 4 Adjust value output For grating adjustment _ COMPLETE _
Press MD PLAY button Step 5
Press MD STOP button Step 2
Step 5 Continuous play (pit part) C1 error check s c
Continuous play (groove part) a c
Step 6 Press CD STOP button ADIP error check a a
Press MD STOP button Returns to Step 2
Step 7 Adjust value output Can’t_ADJ.
Press MD STOP button Returns to Step 2
Step No. Setting Method Remarks Display
Step 1 Test mode stop status tsm e
Step 2 Press CD PLAY button 2 times AFB adjust menu _AUT_AFB_
Step 3 Press MD PLAY button FAB _
Step 4 Adjust value output
Press MD STOP button Returns to Step 2
, : Measured value
4. AFB Adjust Mode

15
D-A03
Step No. Setting Method Display
Step 1 Test mode stop status tsm e
Step 2 Press CD PLAY button 8 times EEPROM_SET
Step 3 Press MD PLAY button _ _Focus_ _ _ _
Step 4 Press MD PLAY button FG _ _ _ _ _ _
Step 5 Press CD PLAY button FG2 _ _ _ _ _ _
Step 6 Press CD PLAY button FF0 _ _ _ _ _ _
Step 7 Press CD PLAY button FF1 _ _ _ _ _ _
Step 8 Press CD PLAY button FF2 _ _ _ _ _ _
Step 9 Press CD PLAY button FZHLEV _ _
Step 10 Press CD PLAY button FOKLEVh _
Step 11 Press CD PLAY button FOKLEVL _
Step 12 Press CD PLAY button FOSTn_ _ _
Step 13 Press CD PLAY button DSCJG_ _ _
: Setting value
5. EEPROM Setting Mode
A) Focus Setting
B) Spindle Setting
Step No. Setting Method Display
Step 1 Test mode stop status tsm e
Step 2 Press CD PLAY button 8 times EEPROM_SET
Step 3 Press MD PLAY button _ _Focus_ _ _ _
Step 4 Press CD PLAY button 1 time _ _ Spindle _ _ _
Step 5 Press MD PLAY button SPG _ _ _ _ _ _
Step 6 Press CD PLAY button SPG _ _ in _ _ _
Step 7 Press CD PLAY button SPG _ _ mid _ _
Step 8 Press CD PLAY button SPG _ _ out _ _
Step 9 Press CD PLAY button SPGM _ _ _ _
Step 10 Press CD PLAY button SP1 _ _ _ _ _
Step 11 Press CD PLAY button SP2 _ _ _ _ _
Step 12 Press CD PLAY button SP22 _ _ _ _
Step 13 Press CD PLAY button SP3 _ _ _ _ _
Step 14 Press CD PLAY button SP4 _ _ _ _ _
Step 15 Press CD PLAY button SP5 _ _ _ _ _
Step 16 Press CD PLAY button SP52 _ _ _ _
Step 17 Press CD PLAY button SPDLIM _ _
Step 18 Press CD PLAY button SPKLEVm _
: Setting value

16
D-A03
Step No. Setting Method Display
Step 1 Test mode stop status tsm e
Step 2 Press CD PLAY button 8 times EEPROM_SET
Step 3 Press MD PLAY button _ _Focus_ _ _
Step 4 Press CD PLAY button 2 times _ Tracking _
Step 5 Press MD PLAY button TG _ _ _ _ _ _
Step 6 Press CD PLAY button TG2 _ _ _ _ _
Step 7 Press CD PLAY button TF0 _ _ _ _ _
Step 8 Press CD PLAY button TF1 _ _ _ _ _
Step 9 Press CD PLAY button TF2 _ _ _ _ _
Step 10 Press CD PLAY button FT3 _ _ _ _ _
Step 11 Press CD PLAY button SVCNT4 _ _
Step 12 Press CD PLAY button TRBLVo _ _
Step 13 Press CD PLAY button TRBLVt _ _
Step 14 Press CD PLAY button TRKLVo _ _
Step 15 Press CD PLAY button TRKLVt _ _
Step 16 Press CD PLAY button TDPWo _ _ _
Step 17 Press CD PLAY button TDPWt _ _ _
Step 18 Press CD PLAY button SLCTo _ _ _
Step 19 Press CD PLAY button SLCTt _ _ _
Step 20 Press CD PLAY button SLCTm _ _ _
Step 21 Press CD PLAY button TCRSC1P _
Step 22 Press CD PLAY button TCRSC0h _
Step 23 Press CD PLAY button TCRSC0L _
Step 24 Press CD PLAY button TCRSCHh _
Step 25 Press CD PLAY button TCRSCHL _
Step 26 Press CD PLAY button COTLVp _ _
Step 27 Press CD PLAY button COTLVr _ _
Step 28 Press CD PLAY button JPint _ _ _
Step 29 Press CD PLAY button KIK10 _ _ _
: Setting value
C) Tracking Setting

17
D-A03
Step No. Setting Method Display
Step 1 Test mode stop status tsm e
Step 2 Press CD PLAY button 8 times EEPROM_SET
Step 3 Press MD PLAY button _ _Focus_ _ _
Step 4 Press CD PLAY button 5 times _ Control _ _
Step 5 Press MD PLAY button CONTRL1 _
Step 6 Press CD PLAY button CONTRL2 _
Step 7 Press CD PLAY button ADJTTM _ _
Step 8 Press CD PLAY button HDEQAD _ _
Step 9 Press CD PLAY button LDEQAD _ _
Step 10 Press CD PLAY button GDEQAD _ _
Step 11 Press CD PLAY button GDEQAD2 _
Step 12 Press CD PLAY button HDEQBC _ _
Step 13 Press CD PLAY button LDEQBC _ _
Step 14 Press CD PLAY button GDEQBC _ _
Step 15 Press CD PLAY button GDEQBC2 _
Step 16 Press CD PLAY button HALSG_ _ _
Step 17 Press CD PLAY button LALSG_ _ _
Step 18 Press CD PLAY button GALSG_ _ _
Step 19 Press CD PLAY button HALSOFS _ _
Step 20 Press CD PLAY button LALSOFS _ _
Step 21 Press CD PLAY button GALSOFS _ _
: Setting value
F) Control Setting
Step No. Setting Method Display
Step 1 Eject status (or without Mecha.) _ _ EJECT_ _ _
Step 2 Press TUNER button TEMP_ _
: Setting value, : Measured value
E) Temp Setting
Step No. Setting Method Display
Step 1 Test mode stop status tsm e
Step 2 Press CD PLAY button 8 times EEPROM_SET
Step 3 Press MD PLAY button _ _Focus_ _ _ _
Step 4 Press CD PLAY button 3 times _ _ _ Sled _ _ _
Step 5 Press MD PLAY button SLG _ _ _ _ _
Step 6 Press CD PLAY button SL2 _ _ _ _ _
Step 7 Press CD PLAY button SLDLIM _ _
Step 8 Press CD PLAY button SLDLEV _ _
Step 9 Press CD PLAY button SLKLVk _ _
Step 10 Press CD PLAY button SLKLVt _ _
Step 11 Press CD PLAY button SLKLVm _ _
Step 12 Press CD PLAY button SLBKm _ _ _
Step 13 Press CD PLAY button SLKrio _ _
Step 14 Press CD PLAY button SLKroi _ _
Step 15 Press CD PLAY button SLKlio _ _
Step 16 Press CD PLAY button SLKloi _ _
Step 17 Press CD PLAY button INNER1 _ _
Step 18 Press CD PLAY button INNERu _ _
Step 19 Press CD PLAY button EJ _ WAIT _
: Setting value
D) Slide Setting

18
D-A03
Step No. Setting Method Display
Step 1 Test mode stop status tsm e
Step 2 Press CD PLAY button 8 times EEPROM_SET
Step 3 Press MD PLAY button _ _Focus_ _ _
Step 4 Press CD PLAY button 7 times RECbit _ SET
Step 5 Press MD PLAY button SP _ WR50 _
Step 6 Press CD PLAY button SP _ WR56 _
Step 7 Press CD PLAY button SP _ WR44 _
Step 8 Press CD PLAY button SP _ WR53 _
Step 9 Press CD PLAY button LP2WR50 _
Step 10 Press CD PLAY button LP2WR56 _
Step 11 Press CD PLAY button LP2WR44 _
Step 12 Press CD PLAY button LP2WR53 _
Step 13 Press CD PLAY button LP4WR50 _
Step 14 Press CD PLAY button LP4WR56 _
Step 15 Press CD PLAY button LP4WR44 _
Step 16 Press CD PLAY button LP4WR53 _
Step 17 Press CD PLAY button RVD _ _ _ _
: Setting value
H) REC bit setting
Step No. Setting Method Display
Step 1 Test mode stop status tsm e
Step 2 Press CD PLAY button 8 times EEPROM_SET
Step 3 Press MD PLAY button _ _Focus_ _ _
Step 4 Press CD PLAY button 6 times ADJSET _ _ _ _
Step 5 Press MD PLAY button COK _ _ _ _ _
Step 6 Press CD PLAY button FAT _ _ _ _ _
Step 7 Press CD PLAY button TAT _ _ _ _ _
Step 8 Press CD PLAY button CAT _ _ _ _ _
Step 9 Press CD PLAY button FAB _ _ _ _ _
Step 10 Press CD PLAY button STR _ _ _ _ _
Step 11 Press CD PLAY button SFS _ _ _ _ _
Step 12 Press CD PLAY button STC _ _ _ _ _
: Setting value
G) Adjust Setting

19
D-A03
Step No. Setting Method Remarks Display
Step 1 Test mode stop status tsm e
Step 2 Press TUNER button Test-play menu TEST_PLAY_
Step 3 Press CD STOP button Address setting (displays address initial value) ADRES_0032
Press MD PLAY button
Step 4 Continuous play (pit part) (Address + C1 error display) s c
Continuous play (groove part) (Address + C1 error display) a c
Step 5 Press CD STOP button (Address + ADIP error display) a a
Continuous play (groove part)
Step 6 Press MD STOP button Test-play menu TEST_PLAY_
6. Test-play Mode (For checking playback performance at the address defined.)
Step No. Setting Method Remarks Display
Step 1 Test mode stop status tsm e
Step 2 Press TUNER button 2 times Test-rec menu TEST_REC_
Step 3 Press CD STOP button Address setting (displays address initial value) a0032_pw
Step 4 Press MD PLAY button Continuous recording apw
Step 5 Press MD STOP button Test-rec menu TEST_REC_ _
7. Test-rec Mode
Use a disc for recording function check. (For checking recording performance at the address defined.)

20
D-A03
GND CH1 CH2
XY
100k
470p
470p
100k
IC1201 4pin
(GND) (TP1202)
IC1201 11pin
(EOUT)
IC1201 12pin
(FOUT)
a
b
Oscilloscope
Lissajous Wave-form
(a:b=4:1 or less)
Optical Pickup Grating Deviation Measuring Method
Lower with finger
Radial Direction
Magnetic Head
Tangential Direction
Object Lens


Lead-in SW Position Measurement Mode
1. Adjustment
Load the high reflection test disc TGYS1.
Note: Adjust the lead-in switch position to FF85 ~ FFD2.
1. Loosen 1 screw (A1) fixing the Mecha. SW P.W.B.
2. Loosen the screw once and retighten it with pushing the
P.W.B. to the A direction if the lead-in switch position is
less than FF85 before loosening the screw, or with
pushing to the B direction if the position is more than
FFD2.
Then measure the lead-in switch position again, and
tighten the screw (A1) firmly if it's within the spec.
2. Confirmation
Check that the display shows _COMPLETE_ instead of
#COMPLETE_ in step 4 of the AUTO adjustment mode.
• Rotating the loading motor forcibly
The loading motor can be rotated forcibly by rotating the VOL
UP/DOWN button while STOP or EJECT in the test mode
appears on the display


Magnetic Head Mounting Position Check
• Check the mounting position of the magnetic head
without fail when replacing the head or optical pickup.
• To adjust the mounting position easier, move the optical
pickup to the center position beforehand.
1. Load the transparent test disc for head alignment.
2. Lower the magnetic head up-shift arm manually to lift up
the magnetic head.
3. View the unit from the above and check that the object
lens of the pickup aligns with the magnetic head.
4. Check whether the magnetic head moves up or down
smoothly.


Mechanism Adjustment
• How to check optical pickup grating
Adjust the Lissajous Wave-form (x-y) of EOUT against FOUT
after performing automatic adjustment at Auto Adjust Mode
(COMPLETE indication) using the high reflection test disc.
1. Loosen 3 screws fixing the spindle motor a little, and
adjust with watching the Lissajous Wave-form.
2. Tighten the screws in the order 1, 2, and 3 after the
adjustment.
2
1
3
Adjusting
Cutout
Slide the mounting position of
the spindle motor with inserting
a screwdriver etc. in the
adjusting cutout, and check the
Lissajous Wave-form.
3
2
1
(A1) × 1
A
B