Sanyo DC-DV610KR User manual

FILE NO.
Service Manual
CONTENTS
DVD/VCD Mini
Component System
DC-DV610KR
PRODUCT CODE No.
129 593 00
REFERENCE No. SM5810173
(SS)
z/ON
CLOCK
dc
k
n
f
a
e
VOLUME
REMOTECONTROLLER RB-DV2000
123
456
789
0
TIMER
SLEEP SET/CLEAR ADJUST
VIDEO
TUNER/
BAND
PRESET
TAPE
a
dcn
j
TAPE A/B
ENTER
+
–
TITLE MENU
ON SCREEN
ZOOMRETURNSET UP
SUBTITLE PROGRAM CLEAR BOOKMARK
PREV PLAY NEXT
REV PAUSE/STEP STOP FWD
REV SLOW FWD SLOW ANGLE
ANGLE
REPLAY
SEARCH
MODE
PICTURE
MODE
REPEAT
LAST MEMOAUDIO
4
5
ba
TIME
SET+
TIME
SET–
SPECIFICATIONS ...........................................................1
WHAT TO DO IF..............................................................1
LASER BEAM SAFETY PRECAUTION ..........................2
MECHANISM REPLACEMENT .......................................2
MECHANISM OPERATION.............................................4
DVD P.W.BOARD OPERATION......................................5
DVD START-UP PROGRAM FLOW CHART ..................21
MPEG AND FRONT END
P.W.BOARD OPERATION(BLOCK DIAGRAM)............23
MPEG AND FRONT END
P.W.BOARD OPERATION
(SCHEMATIC DIAGRAM FOR WAVEFORM CHECK)
.........................................................................................25
CHECK WAVEFORM ....................................................28
TROUBLE SHOOTING..................................................37
VOLTAGE OF IC & TRANSISTOR..................................40
TAPE ADJUSTMENTS ....................................................43
TUNER ADJUSTMENTS .................................................45
EXPLODED VIEW (CABINET & CHASSIS) ...................48
PARTS LIST.....................................................................49
EXPLODED VIEW (DVD MECHANISM) ........................65
PARTS LIST.....................................................................65
EXPLODED VIEW (TAPE MECHANISM).......................66
PARTS LIST.....................................................................67
IC BLOCK DIAGRAM & DESCRIPTION..........................67
WIRING CONNECTION..................................................81
SCHEMATIC DIAGRAM (DVD) .....................................82
WIRING DIAGRAM (DVD A SIDE) ................................83
WIRING DIAGRAM (DVD B SIDE) ................................84
SCHEMATIC DIAGRAM (MPEG) ..................................85
WIRING DIAGRAM (MPEG A SIDE) .............................86
WIRING DIAGRAM (MPEG B SIDE) .............................87
SCHEMATIC DIAGRAM (AMP) .....................................88
SCHEMATIC DIAGRAM (TUNER) ................................89
SCHEMATIC DIAGRAM (FRONT) ................................91
WIRING DIAGRAM (FRONT) .........................................92
SCHEMATIC DIAGRAM (DECK)...................................93
WIRING DIAGRAM (DECK)............................................94
WIRING DIAGRAM
(MIC,HEADPHONE,PT1 and BUTTON) ........................95
WIRING DIAGRAM (SOCKET,PT2 and REG) ...............96
WIRING DIAGRAM (TRAY LED,
STAND-BY_LED,VOLTAGE SELECTOR,
MECHA-SW and MECHA-M)...........................................97

- 1 -
WHAT TO DO IF
• If the operation of the unit or display is not normal, or you wish
to clear the contents of the memory.
1. Disconnect the power cord from AC outlet.
2. Press the RESET button for at least 20 seconds.
3. Connect the power cord.
4. Press the POWER button to turn the power on.
RESET
VIDEO
(AUDIO)
SUB WOOFER
SPEAKERS
(6ΩMIN.)
RL
RL
IN
OUT
FM
75
AM
LOOP
VOLTAGE SELECTOR
– 115V
– 230V
DIGITAL OUT
(DVD/VCD/CD)
OPT.
YC B C R
RL
VIDEO OUT AUDIO OUT(DVD/VCD/CD)
COMPONENT VIDEO OUT
S-VIDEO OUT TV SYSTEM
VIDEO OUT
SELECT PAL NTSC
RESET
SPECIFICATIONS
Tuner
Reception frequency:
FM: 87.5 - 108 MHz
AM: 522 - 1710 kHz (9 kHz step)
520 - 1710 kHz (10 kHz step)
DVD/CD player
Type:
DVD/CD player
Playback standard:
NTSC or PAL
Laser:
Semiconductor laser, wavelength: 650 nm
Laser output (Continuous wave max.):
1 mW (DVD)
0.5 mW (CD)
Frequency range (digital audio):
4 Hz to 44 kHz (DVD fs: 96 kHz)
Signal to noise ratio:
More than 105 dB
Harmonic distortion (digital audio):
0.003 %
Wow and flutter:
Below measurable level
Cassette deck
Track system:
4-track, 2-channel stereo
Frequency response:
120 Hz to 14 kHz
Signal-to-noise ratio:
48 dB
Wow/flutter:
0.12% (WRMS)
Fast forward/rewind time:
Approx. 110 sec. (C-60)
General
Output power:
2200 W (P.M.P.O.)
Inputs
VIDEO(AUDIO) IN: 550 mV/50k ohms
Outputs
SPEAKERS:
6 ohms
PHONES:
8 - 32 ohms
SUB WOOFER OUT:
1.0 V rms
DIGITAL OUT (DVD/VCD/CD):
Optical
AUDIO OUT (DVD/VCD/CD):
2.0 V rms
VIDEO OUT:
1.0 Vp-p (75 )
COMPONENT VIDEO OUT:
Y: 1.0 Vp-p (75 )
CB, CR: 0.7 Vp-p (75 )
S-VIDEO OUT:
Y: 1.0 Vp-p (75 ) NTSC, 1.0 Vp-p (75 ) PAL
C: 0.286 Vp-p (75 ) NTSC, 0.3 Vp-p (75 ) PAL
Power requirements:
AC 115/230 V, 50/60 Hz
Power consumption:
130 W
Dimensions:
270(W) x 330(H) x 317(D) mm
Weight:
8.9 kg
Speaker systems
Type:
3 way acoustic bass tube
Unit used:
Woofer: 16 cm cone type
Mid range: 8 cm cone type
Tweeter: piezoelectric
Maximum power-handling capacity:
180 W (peak)
Nominal impedance:
6 ohms
Dimensions:
275(W) x 330(H) x 304(D) mm
Weight:
5.6 kg (per speaker)
Specifications subject to change without notice.

- 2 -
RESET
VIDEO
(AUDIO)
SUB WOOFER
SPEAKERS
(6ΩMIN.)
RL
RL
IN
OUT
FM
75
AM
LOOP
VOLTAGE SELECTOR
–115V
–230V
DIGITAL OUT
(DVD/VCD/CD)
OPT.
YC B C R
RL
VIDEO OUT AUDIO OUT(DVD/VCD/CD)
COMPONENT VIDEO OUT
S-VIDEO OUT TV SYSTEM
VIDEO OUT
SELECT PAL NTSC
1.Cautionary instructions in handling the assy
(Safety instructions)
Optical pickup
The laser beam used in the pickup is classified as "class 2". Exposing
your eyes or skin to the beam is harmful. Take care not to do so.
(Caution against static electricity and leakage voltage)
Ground securely the work tables, tools, fixtures, soldering irons
(including those made of ceramic) and measuring instruments used
in the production lines and inspection departments that handle
loaders. The workers shall also be grounded.
(Cautionary instructions in handling)
Do not touch the object lens when handling a loader, or the lens will
be stained, resulting in inadequate playability.
There is no power supply protection circuit provided for this product
or adjustment/inspection device. Short-circuiting may lead to fire or
damage.
Take care so as to protect from exposure to water, the entry of
metallic pieces or dew condensation.
In particular, a strong magnet adjacent to the pickup will not only
get inoperative but can damage the pickup if a small metallic piece,
such as a screw or swarm, enters.
The loader edge can cause injury if inadvertently handled.
Do not touch a rotating disk, or injury may result.
This product is a precision device. Handle carefully.
A shock or dropping will cause misalignment or destruction. If it
should occur, refer to clause 2.
This product is so designed as to endure an initial shock equivalent
to a drop from a height of approx. 90 cm under the packed condition.
After the initial shock, the resistivity will still remain at a level of 50
to 60 G, but the mechanical robustness will weaken.
Do not place in a dusty location.
The entry and deposition of dirt into or on the pickup lens or moving
section will cause malfunction or degradation.
DVD MECHANISM REPLACEMENT
(Connectors)
Do not connect or disconnect while power is on.
Connecting or disconnecting signal wires or the main power cord
when the power is on may destruct the unit or fixture.
When connecting, push all the way in securely.
An insufficient insertion may cause a bad contact, leading to an
erroneous operation.
Do not connect or disconnect roughly by an excessively strong force,
or a broken wire or bad contact may result.
Semiconductors are connected. Do not touch connector terminals
directly.
If the worker is grounded, there is nothing to worry about static
electricity, but the rust on the connector terminal surface caused by
the touch may result in bad contact.
(Power source)
The power source need be good in quality (free from instantaneous
interruptions or noises).
A low quality power source may well cause malfunction.
(Storage)
Do not place or store in a dusty place or a place where dew
condensation is possible.
The entry and deposition of dirt or dust into or on the pickup lens or
moving section will cause malfunction or degradation.
Also, dew condensation causes rust;the rust penetrate into the
precision part of a pickup, causing malfunction, or degrading the
optical quality of the internal lens and reflector, which also leads to
malfunction.
CAUTION –INVISIBLE LASER RADIATION WHEN OPEN AND
INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.
ADVARSEL –USYNLIG LASER STRÅLING VED ÅBNING, NÅR
SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION, UNDGÅUDS ÆTTELSE
FOR STRÅLING.
VARNING –OSYNLIG LASER STRÅLNING NÄR DENNA DEL ÄR ÖPPNAD
OCH SPÄRR ÄR URKOPPLAD. STRÅLEN ÄR FARLIG.
VORSICHT –UNSICHTBARE LASERSTRAHLUNG TRITT AUS, WENN
DECKEL GEÖFFNET UND WENN SICHERHEITSVERRIEGELUNG
ÜBERBRÜCKT IST. NICHT, DEM STRAHL AUSSETZEN.
VARO –AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA
NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄKATSO SÄTEESEEN.
LASER BEAM SAFETY PRECAUTION

- 3 -
MECHANISM REPLACEMENT
FLOIL OIL
G-474B
FLOIL OIL
G-2000B
FLOIL OIL
G-2000B
MOLYKOTE
EM-50L
MOLYKOTE
EM-50L
MOLYKOTE
EM-50L
MOLYKOTE
EM-50L
SILICON GREASE
KS-64
3. TRAY PART
MOLYKOTE
EM-50L
GREASE
CDF-409
GREASE
CDF-409
4. BASE MECHANISM PART
1. TRAY AND BASE MECHANISM PART
2. Base mechanism mounting PART
Do not remove the pick-up from base mechanism because of
adjustment difficulty.

- 4 -
MECHANISM OPERATION
CHASSIS
FRONT SIDE
MOTOR
MARKER
MARKER
1
2
2
3
3
1.How to setting the tray.
1. The GEAR 1move from side to side.
2. Match the mark of GEAR 2and mark of GEAR 3 ,
and then install the BOSS.
3. Turn the GEAR 1counterclockwise, and then SLIDE
move right side.
RIB
RIB
GREASE
EM-50L
GREASE
EM-50L
GREASE
EM-50L
LARGE TOOTH
GEAR HOLE
CHASSIS HOLE
5
4
LOARDING
GEAR
MARKER
MARKER
TRAY
HOLE
6
7
8
9
4. Move the SLIDE left side.
5. Match the Hole of GEAR 5 and Hole of CHASSIS 4 .
6. Match the hole of GEAR 7 and hole of chassis while turning
GEAR 6 .
7. Match the mark of LOADING GEAR 8 and gear of TRAY
where see horn hole 9 of tray.
8. Push a tray with the state that turned the entire surface of a
tray into approximately 5 degrees the lower part slowly.

- 5 -
1. General operation diagram (This is a basic general operation diagram)
DVD P.W.BOARD OPERATION
The circuit mounted on the Loader part (Frontend Board) is configured as shown , which is divided into following blocks according to main ICs.

- 6 -
1 2 3 4 5 6 7 8 9
10
11
14 13 16 15 79 72 70
76 61 68 63 59 53 27
18 19 20 21 22 23 24
35 34 33 32 31 30 29
1 2
10 14
7 6
13
9 8 5
28 29 32 45 41 40 46 44 42 12
18 16
206
44 26
154 134 136
28 39 27 38 37 36
20120525
11
30
5157
XHTRC
DEFECT0 RFP1
TH
TESBIAS
HFLBIAS
HFLBIAS
TESBIAS TES
HFL
PCK
PCK
JV
JITTER
DETECTION
CIRCUIT
SLCBIAS
LDO1
LDS1
LDO2
LDS2
SLC
SLCBIAS
EFMINP
EFMINN
DEFECTI
HFLIO
RF-PH
RF-BH
AD5/BH
AD2
AD1
TE
AD4/TE
AD3
FE
AD0
TESIO
EFMOUT
EFM,EFM+
EFM+
EFM
DEFECT
FE,TE,PH,BH,RPEC,
JV,BCA,WO
DEGITAL.
CLK
COUNTER
FDO
TDO
SPDO
SLDO
CPOF
VREF
SLCBIAS
SGC
OFSET
BCA
BOOT3T
RFVCA
TBAL FBAL
D/A
8bit
11ch
+3ch
D/A
8bit
10ch
TES
WO-CNT
HFL TRACK
COUNTER
DEGITAL. OFSET,BCA,BOOT3T, RFVCA,TBAL,FBAL, SGC,HFLBIAS,TESBIAS, FDO,TDO,SPDO,SLDO, SLCBTAS.
RFPI
RFOP
RFON
DEF
PH
BH
BCA
TE
WO
FE
RREC
TOST
FOST
BST
VGA
TEBL FEBL
SGC
SERVO
VREFS
VREFS
TH
CPOF
XHTRC
DPD/TE
XQBHPP/TEEQSCT
RFSCT
VREFP
LDON1 LDON2
PICK
APC1
RR 1
B
FE 1 FE 2
RR 2
APC2
VREFP1
MTX
A
D
C
C
A
DVD
PU
DVD
PU
B
F
E
DPD
2C+A+B
3-BEAM
PUSH-PULL
REN
REP LPF
BCATH
DEFECT
PEAK HOLD
BOTOM HOLD
TE HOLD
LPF2LPF1
BPF
DPD: PHASE A,B,C,D 3-BEAM: F~E PUSH-PULL: (B+C)-(A+D) FE1: (B+D)-(A+C) FE2: A-B RR1: A+B+C+D RR2: A+C+B
TE FE
RREC
RFSCT CD-3T
BOOST
DPD / TE
VGA
BST
DPD / TE
EQ2
EQ1EQSCT
CPOF OR TH DPD / TE
VREF
XHTRC
XHTRC
PP / TE
TOST
FOST
TE FE SGC
SGC
SGC
RFSCT
RFSCT
TH
BCATH
CD
PU
MI-COM
PORT
MI-COM PORT DSP CONTROL
to
DRIVE
IC
LA9702W(AMP) LC78660W(DSP)
IC100 IC200
DVD P.W.BOARD OPERATION
2. Circuit configuration inside IC100(LA9702W) and IC200(LC78660W).
(This is a basic circuit configuration)

- 7 -
DVD P.W.BOARD OPERATION
3. Table of monitor signals (This is a basic table of monitor signals)
Name TP label IC, CN Location Pin no. Description
FE TP101 IC100 25 Focus Error Signal(Analog)
TE TP102 IC100 30 Trk Error Signal(Analog)
RFN TP104 IC100 40 RF Signal(Analog)
RFP TP105 IC100 41 RF Signal(Analog)
BH TP106 IC100 42 Bottom Hold Signal(Analog)
PH TP107 IC100 44 Peak Hold Signal(Analog)
DEF IC100 46 High : When passing defection
LD1 TP122 Q1004 E DVD Laser Power Supply(Analog)
LD2 TP124 Q1005 E CD Laser Power Supply(analog)
TESI0 TP201 IC200 2 TES(Track crossing signal)
SLICBIAS TP202 IC200 26 EFM Slice Bias(Analog)
HFLBIAS TP204 IC200 28 MIRROR Slice Bias(Analog)
HFLIO TP206 IC200 44 MIRROR signal
FSEQ TP211 IC200 84 High : Sync synchronised
LO : Async
PCK TP224 IC200 136 Clock generated by PLL
EFMOUT TP226 IC200 134 RF Digitized signal
DEFECT0 TP220 IC200 201 High : When passing defection
TOST TP246 IC200 29 Trk Offset Control(analog)
FOST TP247 IC200 30 Focus Offset Control(analog)
BOOST3T TP248 IC200 31 RF EQ Control(analog)
RFVCA TP249 IC200 32 RF Voltage Control(analog)
TBAL TP250 IC200 33 Trk Balance Control(analog)
FBAL TP251 IC200 34 Fcs Balance Control(analog)
SGC TP252 IC200 35 Signal Gain Control(anlog)
HFBUSYB TP254 IC200 50 Function Busy
Low during jump, adjustment so on.
JVAO TP257 IC200 154 Jitters value(analog)
TD TP601 IC200 38 Trk Driver out(analog)
FD TP602 IC200 39 Focus Driver out(analog)
SPD-FG TP604 IC602 24 Spindle FG signal
U, V, W IC602 7, 4, 2 Spindle Coil Voltage
U+/-, V+/-, W+/- IC602 9, 10, 11 Spindle Hall Voltage
12, 13, 14
SLD TP607 IC200 36 Sled Driver out(analog)
SPD TP608 IC200 37 Spindle Driver out(analog)
OPEN ------ IC601 16 TRAY control signal
CLOSE ------ IC601 15 TRAY control signal
OPEN-SW ------ CN600 5 TRAY Limit SW
CLOSE-SW ------ CN600 3 TRAY Limit SW
HRST ------ CN500 2 RESET from Backend
RESET ------ IC502 6 RESET to Micom
VREF ------ IC100 27, 79 Reference Voltage(2.5V)
A. Reference table for waveform are listed as below.

- 13 -
DVD P.W.BOARD OPERATION(SIGNAL)
A. RF Signal during play mode.
RF
RF
RFofDVDdisc RFofCDdisc
B. Defection Signal (Detection of level down signal)
RF
PH
BH
DEFECT
RF
PH
BH
DEFECT
Scratcheddefect Interruptiondefect
1. RF and Defection Signal
2. Servo and Tray Control
A. S-Curve signal by Focus search
Zero cross point
RF
FDO
FE
RF
FDO
FE
S-CurveofDVDSingleLayeddisc S-CurveofDVDDualLayeddisc
Each signal shown refers to WIRING ,SCHEMATIC DIAGRAM and Table of monitor signals.
(This is a basic signal.)

- 14 -
DVD P.W.BOARD OPERATION(SIGNAL)
B. Focus In and Focus Jump
Cross point
RF
FDO
FE
Zero cross point
Brake pulseKick pulse
RF
FDO
FE
FocusIn FocusJump
C. Tracking Servo
RF
TE
a. TE (Tracking Error) Signal.
TECurve
b. Track Jump Signal
RF
TE
TDO
SLD Brake pulseKick pulse
RF
TE
TDO
SLD
Sled drive
OneTrackJump 16TrackJump

- 15 -
DVD P.W.BOARD OPERATION(SIGNAL)
D. Seld Servo (Sled motor drive signal)
RF
TE TE
SLDO SLDO
Zoom
RF
E. Spindle Servo (Spindle motor drive signal)
U
V
W
SPD
U
U+
FG
SpindleDrive(U,V,W) Spindle(W,W+,FG)
F. Tray open and close
CLOSE
OPEN
OPEN SW
CLOSE SW
CLOSE
OPEN
OPEN SW
CLOSE SW
TrayClose TrayOpen

- 16 -
DVD P.W.BOARD OPERATION(SIGNAL)
3. Decorder
RF
EFMOUT
SBIAS
RF
EFMOUT
PCK
4.3218MHz (CD:Normal speed)
RF,EFMOUT,SBAIS RF,EFMOUT,PCK
4. Reset Timing for Micom Cotroller
VDD(5V)
RESET
HRST
ResetTiming
5. Anti-Defect Processing
A. Disturbance by Defect
RF
TE
Disturbance of tracking
Defect
RF
TE
FE
DEFECT0
TEdisturbanceatDefect SuppresseddisturbancebyTE,FEholdprocess

- 17 -
DVD P.W.BOARD OPERATION(SIGNAL)
B. Circuit block of Anti-Defect
IC100
IC101
IC200
TE
FE FE
RF
Defct
PH PH
BH BH
PH PH
PH-BH
BH
DEF
TH
TE
FE
TE
Thold
Fhold
DEFECTO
DEFECTI
Def Inh from IC500
Trk EQ
Fcs EQ
OR
Q1009
Q1010
6. Start-up program
A. Disc type Identification
a. In the case of DVD Dual Disc
Zoom
A : No peak B : Two peaks
CD laser DVD laser
RF
FDO
FE
SPD
RF
FDO
FE
SPD
RF
FDO
FE
SPD
Zoom
b. In the case of DVD Single Disc
Zoom
Peak 0
Peak 0 < Peak 1
Peak 1
CD laser DVD laser
RF
FDO
FE
SPD
RF
FDO
FE
SPD
RF
FDO
FE
SPD
Zoom

- 18 -
DVD P.W.BOARD OPERATION(SIGNAL)
c. In the case of CD Disc
Peak 0
Peak 0 > Peak 1
Peak 1
CD laserZoom DVD laser
FE
FDO
FE
SPD
FE
FDO
FE
SPD
Spindle kick
SPD
FG
6 FG = 1 revolution
Tm > 300ms
B. Disc diameter identification
SPDO
FG
6 FG = 1 revolution
Tm > 155 ms
SPDO
FG
6 FG = 1 revolution
Tm < 155 ms
a. In the case of 12cm Disc b. In the case of 8cm Disc
c. In the case of NO Disc

- 19 -
DVD P.W.BOARD OPERATION(SIGNAL)
7. Adjustment (Auto Adjustment)
A. SGC(Signal Gain Control) Adjustment
Zoom
Zoom Zoom
RF
FDO
FE
SPD
RF
FDO
FE
SPD
B. Tracking Balance Adjustment
Vref
Zoom
RF
FDO
TDO
TE
TE
RF

- 20 -
DVD P.W.BOARD OPERATION(SIGNAL)
C. Focus and Tracking Gain Adjustment
Zoom
RF
FDO
FE
SPD
FE
FDO
RF
SPD
a. Focus gain Adjustment
b. Tracking Gain Adjustment
Zoom
RF
FDO
TDO
TE TE
TDO
RF
FDO

- 21 -
DVD START-UP PROGRAM FLOW CHART
data:Tm D = 8cm D = 12cm NoDisc
Spindle Servo
Gain down
pk0 : Th0 pk1 : Th1
D-type = CD
D-type = CDRW
D-type = DVD
SGC(pk0)
Fofst Adj DVD Mode
SGC(pk1)
Fofst Adj
pk2 : Th2
D-type = DVD Dual
D-type = DVD Single
SGC(pk2)
pk2 > Th2
pk2 < Th2
Start
D-type : Disc Type
pk0 : pk1
1
Start
Vref
compensation
Kick
Spindle
pk0 : Th0
FG servo
500 rpm
CD Mode
DVD Mode
Fofst Adj
Fcs Aji
data:pk0
Fofst Adj
Fcs Adj
data:pk1 & pk2
one rev
not yet
done
data:Tm Rising Time
Tm : Th1
Tm : Th2
Disc diameter identification
Tm < Th1
Tm < Th2
pk1 : Th1
pk2 : Th2 pk2 > Th2
pk0 > Th0
pk2 < Th2
pk0 > Th0
pk0 > pk1
pk0 < pk1
pk0 < Th0
pk1 < Th1
pk1 > Th1
CD Mode
Tm > Th2
Tm > Th1
pk1 > Th1
pk1 < Th1
Th1=300 ms
Th2=155 ms
Th : Time threshold
pk0 : S-Peak value
pk1 & pk2 : 1st & 2nd S-Peak value
pk0 < Th0
Th0 : Level threshold
Disc Type identification
1. Disc Identification
(This is a basic start-up program flow chart.)

- 22 -
DVD START-UP PROGRAM FLOW CHART
2. Fundamental and additional auto adjustment
3 times failed?
Not yet
Start
Fbal adj
failed
Additional
adjustment
Fundamental
adjustment
Fcs OK
D-type
D-type
2
Focus In
CLV On
1
NG
Dual
OK
Single
CD
Tbal adj
Mirr adj
Tbal adj
Mirr adj
Trk On
Fgain adj
Tgain adj
Fgain adj
Tgain adj
Sled On
Sled On
Sld Off
Trk Off
Trk On
RF adj
RF adj
Fcs jump
Fbal adj Eccentricity
measure
L1->L0
Next Layer
1st layer
DVD
Mode Waiting
Error check
D-type
D-type
Fbal adj Trk shift
EQ sdj
Trk shift
EQ adj.
Sled outer
TOC read
2
DVD
Single
Dual
NG
CD
Ok
Trk shift
EQ adj.
Fcs Jump

- 23 -
IC136
INVERTER
IC135
BUFFER
IC131
ADAC IC132 AMP
11pin:R
14pin:L
blue back data 2-4,38-42pin
16-18pin
IC102
VENC
IIC-BUS
IC101
EEPROM
IC116
MPU
IC117
DRAM
IC130
RESET
IC118
FLASH
IC111
SDRAM
IC110
SDRAM
IC127
MPEG-DEC.
SERIAL
DATA (CD),
PARALLEL
DATA(DVD,VCD)
X8001
27MHz
FRONT
LOADER
384fs
105-107pin
73,74,76-78,82-84pin
384fs:audio clock
2,3,4pin (CD)
DVD,VCD,CD MAIN signal diagram
AUDIO OUT
VIDEO OUT
VIDEO OUT
component
composite,y/c
98,99
101pin
5V
13,15,17,19,
21,23,25,27pin
(DVD,VCD)
MPEG AND FRONT END P.W.BOARD OPERATIONAL (BLOCK DIAGRAM)
IC136
INVERTER
IC135
BUFFER
IC135
BUFFER
IC131
ADAC IC132 AMP
48pin
4pin
4pin
55pin
35pin35pin
130pin
56pin
1,2pin
1pin2pin
4pin
1,2pin
2pin
IC102
VENC
IIC-BUS
IC101
EEPROM
IC116
MPU
IC117
DRAM
IC130
RESET
IC118
FLASH
IC111
SDRAM
IC110
SDRAM
CN810
10pin
IC127
MPEG-DEC. X8001
27MHz
FRONT
LOADER
384fs
CLOCK signal diagram
AUDIO OUT
VIDEO OUT
VIDEO OUT
component
composite,y/c
5V
master RESET
94,95,96pin
81MHz
27MHz
CD/VCD
(This is a basic block diagram.)

- 24 -
MPEG AND FRONT END P.W.BOARD OPERATIONAL (BLOCK DIAGRAM)
IC131
ADAC IC132 AMP
IC102
VENC
IIC-BUS
IC101
EEPROM
IC116
MPU
IC117
DRAM
IC130
RESET
IC118
FLASH
IC111
SDRAM
IC110
SDRAM
IC127
MPEG-DEC.
FRONT
LOADER
RESET signal diagram
AUDIO OUT
VIDEO OUT
VIDEO OUT
component
composite,y/c
16pin
9pin
22pin
84pin
95pin
86pin
57pin
17pin 85pin
3pin 1pin
3pin
4pin
5V
IC113
3V , 5V
(This is a basic block diagram.)