Sanyo DVD-1500A User manual

Service Manual FILE NO.
R
CONTENTS
DVD Video Player
DVD-1500A (AU)
(SS)
DVD-1500 (AR)
(XE)
(UK)
DVD-S1500 (US2)
DVD-6070 (CA)
DVD-6000 (XE)
DVD-6040 (CA)
PRODUCT CODE No.
137 093 09 DVD-1500A/AU
137 093 08 DVD-1500A/SS
137 093 06 DVD-1500/AR
137 093 10 DVD-1500/XE
137 093 02 DVD-1500/UK
137 093 07 DVD-S1500/US2
137 099 04 DVD-6070/CA
137 099 01 DVD-6000/XE
137 099 03 DVD-6040/CA
REFERENCE No. SM5810157
SPECIFICATIONS ..................................................1
LASER BEAM SAFETY PRECAUTION..................1
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
EXPLODED VIEW (CABINET & CHASSIS) ..........48
PARTS LIST............................................................49
EXPLODED VIEW (DVD MECHANISM) ...............61
PARTS LIST............................................................61
IC BLOCK DIAGRAM & DESCRIPTION.................62
WIRING CONNECTION.........................................73
SCHEMATIC DIAGRAM (DVD) ............................74
SCHEMATIC DIAGRAM (MPEG) .........................75
WIRING DIAGRAM (DVD A SIDE) .......................76
WIRING DIAGRAM (DVD B SIDE) .......................77
WIRING DIAGRAM (MPEG A SIDE) ....................78
WIRING DIAGRAM (MPEG B SIDE) ....................79
SCHEMATIC DIAGRAM (MAIN)...........................80
WIRING DIAGRAM (FRONT) ................................90
WIRING DIAGRAM (SOCKET)..............................92
WIRING DIAGRAM (DG) .......................................94
WIRING DIAGRAM (SCART) ................................95
WIRING DIAGRAM (HEADPHONE,
POWER SWITCH, LED,
TRAY OPEN/CLOSE MOTOR,
TRAY OPEN/CLOSE SWITCH)............................96
MIN MAX
PHONE LEVELPHONES
PLAY
PAUSE/STEP
STOP
fe k
an
q
OPEN/CLOSE
z/ON
STANDBY
MIN MAX
PHONE LEVELPHONES
PLAY
PAUSE/STEP STOP
fe k
an
q
OPEN/CLOSE
z/ON
STANDBY
VIRTUAR
SURROUND
z/ON
PICTURE
MODE LAST MEMO OPEN/CLOSE
q
ONSCREEN SUBTITLE AUDIO
SETUP RETURN
REV FWD
REVSLOW PAUSE/STEP STOP FWDSLOW
PREV PLAY NEXT
dc
kn
fae
CLEAR
MENU
TITLE ZOOM
123C
456
7890
PROGRAM SEARCHMODE ANGLE ANGLEREPLAY
BOOKMARK REPEAT A-B REPEAT
4
5
ENT ba
REMOTECONTROLLER RB-5100
1500,1500A and S1500
6070,6000 and 6040
z/ON
PICTURE
MODE LAST MEMO
ONSCREEN SUBTITLE AUDIO
SETUP RETURN
REV FWD
REVSLOW PAUSE/STEP STOP FWDSLOW
PREV PLAY NEXT
dc
kn
fae
CLEAR
MENU
TITLE ZOOM
123C
456
7890
PROGRAM SEARCHMODE ANGLE ANGLEREPLAY
BOOKMARK REPEAT A-B REPEAT
4
5
ENT ba
REMOTECONTROLLER RB-6000
VIRTUAL
SURROUND

- 2 -
LASER BEAM SAFETY PRECAUTION
DIGITAL
OUT
LR
OPT.
VIDEO OUT
AUDIO OUT
COMPONENT VIDEO OUT
YC
BCR
TV SYSTEM
PAL NTSC
VIDEO OUT SELECT
S COMPONENT
S-VIDEO OUT
DIGITAL
OUT
OPT.
RL
VIDEO OUTAUDIO OUT
S-VIDEO OUT
VIDEO OUT SELECT
S
RGB
TV SYSTEM
PAL NTSC
A/V EURO CONNECTOR
(RGB OUT)
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, UNDGÅ UDS 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. ÄLÄ KATSO SÄTEESEEN.
1500/AU,SS,AR
6000/XE
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.
MECHANISM REPLACEMENT
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.
(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.
S-VIDEO OUT
DIGITAL
OUT
RL
OPT. VIDEO OUTAUDIO OUT
TV SYSTEM
PAL NTSC VIDEO OUT SELECT
S RGB
(RGB OUT)
A/V EURO CONNECTOR
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.
1500/UK,XE

- 5 -
1. 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).

- 7 -
DVD P.W.BOARD OPERATION
3. 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.

- 8 -
DVD P.W.BOARD OPERATION(SCHEMATIC DIAGRAM FOR SIGNAL CHECK)
FG
FG
FG
LOADING
LOADING
LOADING
FOCUS
SERVO
FOCUS
SERVO
FOCUS SERVO
FOCUS
SERVO
FOCUS
SERVO
FOCUS
SERVO
TRACKING
SERVO
TRACKING
SERVO
FOCUS
SERVO
TRACKING
SERVO
TRACKING
SERVO
TRACKINGN SERVO
SLED
SLED
SLED
SPINDLE
SPINDLE
FOCUS SERVO
TRACKINGN SERVO
SPINDLE

- 9 -
DVD P.W.BOARD OPERATION(SCHEMATIC DIAGRAM FOR SIGNAL CHECK)
RF
Egualization
RF
Egualization
RF
Egualization
RESET
CD
DVD
RESET
Adjustment
Adjustment

- 10 -
DVD P.W.BOARD OPERATION(SCHEMATIC DIAGRAM FOR SIGNAL CHECK)
CD
RF
DVD
RF
DVD
LASER
POWER
CONTROL
CD
LASER
POWER
CONTROL
TE
FE
FE BH
PH
DVD/CD
RF
DVD/CD
RF
BH
DEFECT

- 11 -
DVD P.W.BOARD OPERATION(WIRING DIAGRAM FOR SIGNAL CHECK)
TP257 TP224TP204 3.3VTP229TP206
TP252TP250TP249TP248TP247TP246 TP251 TP604TP211
TP121TP101VREFGND
M
9VGND
A
5VaGND
D
5Vb
TP122
TP104
TP124
TP105
TP106
TP107
TP102 TP226
TP602
TP601
TP608
TP607
A. A side

- 12 -
DVD P.W.BOARD OPERATION(WIRING DIAGRAM FOR SIGNAL CHECK)
TP202 TP201 TP254
B. B side

- 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