THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
ORDER NO.
RRV2649
ModelTypePower Requirement
DV-656A-SWYXJAC220-240V2
DV-656A-KWYXJAC220-240V2
Reginal restriction
codes (Region No.)
Remarks
For details, refer to "Important symbols for good services".
Page 2
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SAFTY INFORMATION
A
This service manual is intended for qualified service technicians ; it is not meant for the casual
do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been
trainedto properly and safely repair complex products such as those covered by this
manual.Improperly performed repairs can adversely affect the safety and reliability of the product
and mayvoid the warranty. If you are not qualified to perform the repair of this product properly and
safely, youshould not risk trying to do so and refer the repair to a qualified service technician.
B
C
THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1
BUT THE LASER COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR
CLASS 1.
A SPECIALLY INSTRUCTED PERSON SHOULD DO SERVICING OPERATION OF THE APPARATUS.
LASER DIODE CHARACTERISTICS
FOR DVD : MAXIMUM OUTPUT POWER : 5 mW
WAVELENGTH : 650 nm
FOR CD : MAXIMUM OUTPUT POWER : 5 mW
WAVELENGTH : 780 nm
LABEL CHECK
D
WARNING !
Additional Laser Caution
1. Loading-status detection switch (S101 on the LOAB assy) are detected
E
F
2
1234
DV-656A-S
by the microprocessor (IC601 in the DVDM assy).
• To permit the laser diode to oscillate, it is required to set the loadingstatus detection switch for the clamp position (the center terminal of
S101 is shorted to +3V).
When the voltage of IC101-pin 20 is +3V, IC601 (microprocessor)
-pin 83 is +3V and IC601-pin 84 is +3V, 650nm laser diode for DVD
oscillates in the DVDM Assy.
When the voltage of IC101-pin 20 is +3V, IC601 (microprocessor)
-pin 83 is 0V (GND) and IC601-pin 84 is +3V, 780nm laser diode for
CD oscillates in the DVDM Assy.
In the test mode * , the laser diode oscillates when microprocessor
detects a PLAY signal, or when the PLAY key is pressed (S104 ON in
the FLKY assy), with the above requirements satisfied.
2. When the cover is open, close viewing through the objective lens with
the naked eye will cause exposure to the laser beam.
∗ : See page 61.
Page 3
5678
[ Important symbols for good services ]
In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely.
When you find the procedures bearing any of the symbols, be sure to fulfill them:
1. Product safety
You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and
should keep the safety during servicing by following the safety instructions described in this manual.
2. Adjustments
To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable.
In accordance with the procedures or instructions described in this manual, adjustments should be performed.
3. Cleaning
For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning,
proper cleaning should be performed to restore their performances.
4. Shipping mode and shipping screws
To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or
the shipping screws should be installed before shipping out in accordance with this manual, if necessary.
A
B
5. Lubricants, glues, and replacement parts
Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying
glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the
prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed
ones should be used.
4.6 FLKY and KEYB ASSYS ......................................................................................................................... 52
4.7 POWER SUPPLY UNIT............................................................................................................................54
5. PCB PARTS LIST ........................................................................................................................................... 55
6.4 TEST MODE ............................................................................................................................................ 61
7.2 IC ............................................................................................................................................................. 85
7.3 DISC / CONTENT FORMAT PLAYBACK COMPATIBILITY...................................................................119
Laboratories. “Dolby” and the double-D
symbol are trademarks of Dolby Laboratories.
•“DTS” is a registered trademark of Digital
Theater Systems, Inc.
• TruSurround and the
® symbol are
trademarks of SRS Labs, Inc. TruSurround
technology is incorporated under license from
SRS Labs, Inc.
5678
1. SPECIFICATIONS
A
B
C
D
E
DV-656A-S
56
F
7
8
5
Page 6
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2. EXPLODED VIEWS AND PARTS LIST
NOTES:
A
2.1 PACKING
6
B
2
3
1
C
Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
The mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
Screws adjacent to mark on product are used for disassembly.
For the applying amount of lubricants or glue, follow the instructions in this manual.
(In the case of no amount instructions, apply as you think it appropriate.)
: No. 1 to 4 and 6 to 11 : MJK1, Title 1-chp 1 No. 12 to 14 : DVD-REF-A1, T2-Chap.1
AC mode
GND
AC mode
GND
IC251 - pin 24 (FG)
7
V: 1V/div. H: 5msec/div.
Foot of R261 (FPWM)
8
V: 1V/div. H: 10µsec/div.
Foot of R262 (VPWM)
9
V: 1V/div. H: 10µsec/div.
GND
GND
Foot of R963 (C)
13
V: 0.2V/div. H: 10µsec/div.
Foot of R960 (Y)
14
V: 0.2V/div. H: 10µsec/div.
Foot of R959 (Y)
15
V: 0.2V/div. H: 10µsec/div.
19
20
Foot of R958 (Pb) Progressive
V: 0.2V/div. H: 10µsec/div.
Foot of R957 (Pr) Progressive
V: 0.2V/div. H: 10µsec/div.
A
B
C
IC101-pin 42 (Tracking Error)
4
(AI-Inner Tracking Off)
V: 500mV/div. H: 2msec/div.
IC201 - pin 39 (EFM before slice)
5
V: 0.5V/div. H: 0.2µsec/div.
IC201 - pin 1 (EFM)
6
V: 1V/div. H: 0.2µsec/div.
AC mode
GND
GND
Foot of R263 (PPWM)
10
V: 1V/div. H: 0.2msec/div.
Foot of R264 (RPWM)
11
V: 1V/div. H: 5msec/div.
Foot of R964 (V)
12
V: 0.2V/div. H: 10µsec/div.
GND
GND
GND
Foot of R958 (Pb)
16
V: 0.2V/div. H: 10µsec/div.
Foot of R957 (Pr)
17
V: 0.2V/div. H: 10µsec/div.
Foot of R959 (Y) Progressive
18
V: 0.2V/div. H: 10µsec/div.
D
E
GND
DV-656A-S
56
F
7
8
41
Page 42
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3.14 WAVEFORMS [JACB ASSY]
A
JACB ASSY
C
Measurement condition
IC301-pin 4 (LRCK)
21
V: 1V/div. H: 5µsec/div.
B
IC301-pin 5 (DATA0)
22
V: 1V/div. H: 500nsec/div.
: No. 21 to 25 : DVD-REF-A1, T2-Chap.1
C
D
E
IC301-pin 6 (BCK)
23
V: 1V/div. H: 100nsec/div.
IC301-pin 7 (PMCK)
24
V: 1V/div. H: 20nsec/div.
IC302 - pin 1 (Analog OUT)
25
V: 1V/div. H: 500µsec/div.
F
42
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DV-656A-S
Page 43
5678
4. PCB CONNECTION DIAGRAM
4.1 LOAB ASSY
NOTE FOR PCB DIAGRAMS :
1. Part numbers in PCB diagrams match those in the schematic
diagrams.
2. A comparison between the main parts of PCB and schematic
diagrams is shown below.
Symbol In PCB
Diagrams
BCE
B
D
C
E
S
Symbol In Schematic
Diagrams
EB C E
BC
S
BC
DG
BCE
DGG
Part Name
Transistor
E
Transistor
with resistor
S
Field effect
transistor
Resistor array
3. The parts mounted on this PCB include all necessary parts for
several destinations.
For further information for respective destinations, be sure to
check with the schematic diagram.
4. View point of PCB diagrams.
Connector
Capacitor
SIDE A
P.C.Board
Chip Part
SIDE B
A
B
3-terminal
regulator
SIDE ASIDE B
LOAB ASSY
A
(VNP1836-B)
CN601CN602CN602CN601
CN103
B
M
LOADING
MOTOR
ASSY
C
D
E
F
AA
56
DV-656A-S
7
8
43
Page 44
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4.2 DVDM ASSY
SIDE A
A
DVDM ASSY
R821
R816
R859
R815
C852
3348
R872
C843
IC831
R842
R841
R839
C758
C202
C204
R328
5
R318
4
R317
C313
R311
C314
R313
C693
C695
R696
R695
R640
R693
C610
R641
R655
R535
R531
R533
C531
CONTACT SIDE
3348
R694
R536
B
2
2
1
R985
DVI
R923
R864
R868
C851
C847
R871
32
4964
49
C761
C759
C760
C764
C763
C317
R322
IC302
R314
R316
R310
R312
C315
C263
R271
R270
R261
R262
R263
R264
R266
FPWM
VPWM
C266
PPWM
R272
RPWM
R647
R607
R606
R635
R605
R602
C532
R534
CN531
C762
8
R268
C261
C752
5
R863
R862
64
R759
R441
R836
C833
R758
R721
17
1732
C265
CONTACT SIDE
R986
R929
R832
R908
R831
C842
C917
R928
C838
C837
116
R835
116
R875
C766
R753
R752
D
52
C770
C769
C326
R718
C702
R725
R726
C474
C711
C
C264
R269
4
IC261
R762
1
R538
AWX8156VWS15 -
VWS1535-
R537
R540
R539
SACD
R408
C534
2
2
1
1
1
1
C533
PRI-FLUX
26
R760
C772
C771
105
105
104
104
53
53
52
C489
R483
R493
R487
C486
R497
R471
R472
R706
R741
R414
C426
C913
C796
R761
C782
C781
R482
BAR CODE
R898
R907
C902
HEAT RESISTANCE
C903
25
50
C751
14
1
4
R757
C487
R756
C795
C794
C780
C779
C778
D
C777
R492
R491
C776
C775
R781
R476
R474
C484
C774
C773
R473
R489
R490
R488
C485
R301
C701
R704
R705
R713
R714
C745
R417
R411
R413
R409
R410
CN901
PW
1
113
EV6
D401
EV4
R942
R943
R935
R934
CN401
R997
JACK(VIDEO)
CONTACT SIDE
30
R939
30
R931
NP
R938
R404
C414
Q931
C401
R945
IC403
R823
R957
EV3
5V
R403
R958
C412
R822
R959
C815
C801
R856
C850
5S
R855
C849
C848
R854
R873
C808
C411
CN101
G
CN401
B
CN601
A
13
D402
R406
1
15
C422
CN103
LOAD
R389
R390
C392
5
1
1
C126
CN103
C
PICKUP
ASSY
CN111CN115
26
26
CN101
CONTACT SIDE
1
1
CN114
CN114
D
STEPPING
M
4
4
CN104
6M
MOTOR
SLDR
4
1
1
112
CN105
CONTACT SIDE
12
R391
C391
12V
R224
C226
R223
C230
R229
C231
C227
A
E
SPINDLE
MOTOR
M
HCT163
R422
C393
R138
FDRV
PU
R341
94V-0
C283
C284
R287
2
2
26
26
29
1
LDREAD
R662
C662
C657
C658
R619
R664
C128
12
12
1
R651
C369
GNDM
SPDL
CN115
FG
R622
C616
C614
R633
R669
R620
R666
R288
C285
1
1
25
25
C299
R663
1
C272
C282
CN111
R149
C205
X601
R652
R285
R661
R290
C286
R289
8
5
IC281
4
R161
C273
C271
C274
R282
R286
R283
C281
R284
R281
B1
B2
A
C
B4
B3
RF+
RF-
R139
C119
C207
CONTACT SIDE
C358
C217
R350
C221
C368
R221
C222
R222
C225
30
R280
C201
R681
R629
R683
132
133
R615
R668
R676
C666
176
1
R667
C667
C270
8
8
1
1
R240
51
IC201
75
C224
R630
(SECOND)
SIDE A
C
R996
R963R964
R948
R933
C933
C931
Q934
Q932
R960
R940
C932
Q933
R947
R944
C846
R804
C811
C806
R812
R813
C807
2.5V
5
5
4
4
R166
R165
R164
R163
R162
R211
R210
C215
50
76
A
C223
R645
R637
R638
R631
R598
R592
R590
R599
CN701
C816
R818
R817
25
C810
C809
3625
36
R810
R814
R811
R806
R803
IC271
C101
R119
C103
C123
C100
C107
R120
VREF
C127
R628
C618
C603
20
20
CN502
DSP
CONTACT SIDE
R951
R950
24
2413
37
37
R809
R808
R807
C805
R168
R167
R150
Q103
R134
R242
R212
C216
R209
C213
R232
R231
R626
C604
19
19
R121
C212
R129
IC801
C236
R937
R936
R115
26
1
1
130
R801
13
12
121
1
48
48
R838
R837
C841
R844
R846
C798
C755
C117
RFO
R241
TE
C241
R208
R204
C208
C206
25
R201
1
100
IC601
CN912
30
30
291
29
CN901
CN951
R865
R866
C802
C812
C844
C839
C803
R845
R843
R805
C840
C804
R802
C834
C845
C832
R833
C757
C767
R751
C768
156
156
157208
157
C756
C108
C106
R118
R117
C754
C753
FE
208
IC751
1
1
R236
R215
C319
R202
C200
8
C203
C312
1
C233
89
R624
88
R623
R611
R627
C615
C613
C607
C605
45
44
40
40
R593
2
2
39
39
1
1
R475
1
C793
7
57
R481
R412
IC901
C909
5
C480
R485
R724
17
C916
C912
R579
R754
R755
C790
C476
R701
R791
C908
C471
C472
C924
R673
C791
9
9
16
(VNP1886-B)
CONTACT SIDE
CN551
21
21
1
R577
1
R563
R632
R568
R570
21
R954
21
1
R946
1
R583
IC791
C792
C470
R486
16
IC481
C
CN701
1
1
C799
R798
R671
R672
R674
R675
24
24
VWS1534VWS1533VWS1532-VWS1539VWS1531-
KN1
R418
FL
CN402
17
CONTACT SIDE
T.O.
KN2
CN561
JACK(AUDIO)
R555
VNP1886-
DVDM
R480
X481
C481
R495
8
C477
C475
1
18
27M
L481
iLINK
CONTACT SIDE
Q931
Q932
Q934
Q933
CN101
C
CN551
Q103
IC901
IC403
IC831
IC801
IC271
IC281
IC791
IC481
IC751
IC201
IC302
IC261
IC601
F
D
CN901
CN531
CN402
CN101
E
44
B
DV-656A-S
1234
Page 45
5678
R550
R559
IC553
R565
R795
R560
1
4
R561
C553
23
33
C891
C915
C918
R927
C911
R926
R556
R925
C907
R576
R924
C905
R588
R554
C556
R574
8
R572
5
R586
1
C555
12
22
3444
IC491
C493
C490
C495
R581
R582
R797
C736
R799
R677
R702
C710
R703
C709
C706
C741
25
R727
IC741
26
CN412
R891
40
C923
41
80
C900
81120
C901
R902
R900
R899
R901
R906
C899
R904
R896
R903
R894
R905
R893
C940
R553
R552
R551
24
C785
1
C786
C552
C787
C554
13
IC552
C494
C788
12
27
C789
R499
111
R496
C488
C714
C708
R498
R792
R720
R793
R794
R796
C705
208
1
C707
R712
R715
C704C735
52
C713
53
R722
C712
1
7
CONTACT SIDE
C893
C930
R977
Q940
IC781
4
R315
C310
5
4
C323
R719
R723
5
R710
R711
R709
C715C718
C742C743
C747
R597
C716
C934
IC902
R979
R980
C717
R320
50
C746
28
IC306
IC305
IREF
54
1
C929
C765
3
1
3
1
C328
C329
2
C928
L751
C744
1
R334
Q935
C719
C896
SIDE B
DVDM ASSY
B
C946
R983
R922
R921
R984
R965
C927
1
C922
160
121
C895
R763
C897
C898
R895
R897
R952
R972
Q937
R971
R976
R956
R962
C938
11
C783
20
C797
C784
C491
C113
R159
C114
R133
IC304
R321
IC303
4
3
R336
C322
1
5
4
3
1
5
C336
C723
R708
C724
C725
R707
C721
104
C720
C722
R595
R920
R914
IC786
R123
R132
D303
C727
R919
1
C115
10
D302
157
R330
C320
R910
R122
C332
156105
C942
C941
R913
R917
C919
C920
R918
R912
C921
R916
R834
R915
R909
R840
R911
C836
R988
R987
C906
C914
A-
C910
C904
001122334455667788
C894
012345678
VWS1
R992
R990
R126
C109
R127
R135
C120
C731
R596
R331
C321
C730
R172
R171
R344
C726
R594
C121
R136
R332
L304
R343
C728
C733
R227
R233
C732
IC701
R329
C234
R717
R716
C335
R345
C324
1
NP
TP2
Q106
R342
R225
R614
R684
C118
C116
R335
C729
CN542
39
1
40
R532
C944
R585
R557
R564
R562
R567
C835
AWX8
R124
3348
C110
C111
R128
TP1
R130
R131
C330
C334
L330
C333
R234
Q210
R228
C232
6
4
R218
R226
C235
IC211
R617
R634
1
R685
24
CONTACT SIDE
2
C813
C814
R214R213
R333
R558
R125
49
C124
C112
R819
Q104
R610
R689
C943
R571
C945
R970
R975
C939
C937
Q939
Q938
R981
R974R967
R978
R973
R820
R112
R114
C102
C104
C105
32
C242
RFO
R116
Q241
R203
C214
C255
C237
R260
Q601
C609
R680
D601
CN513
19
20
R969
R961
R999
C935
R995
18
Q936
R966
R998
R3
R4
Q102
IC101
17
116
64
21
R362
R361
R369
R363
C361
R219
C220
R246
C252
R252
C251
R253
R639
R642
R625
R682
IC603
C599
C948
R994
IC931
Q941
99
9
R113R111
C122
22
IC351
R220
C258
R251
C253
C623
C619
R621
48
25
CONTACT SIDE
16
9
IC402
R618
R993
C415
C947
C417
R1
2815
C256
R659
C631
C936
C416
Q101
C622
R405
R2
R982
C406
C420
R258
R612
R110
R109
R108
R107
R106
R105
R665
C407
14
R158
R157
R156
R155
R153
R154
R151
R152
R141
R142
R600
R259
C608
R616
C629
R650
R298
(FIRST)
SIDE B
R949
R955
C419
C421
R968
R941
C413
R421
C134
C133
C602
C601
1
R589
R613
R601
R104
R101
R102
R103
R371
C353
42
R932
57
C418
R140
14
R609
R370
1
R402
R419
C130
R143
IC251
R257
C650
C297
45
(VNP1886-B)
IC404
R401
C410
C423
C425
C424
R137
C125
R359
C360
R144
C370
C371
R374
R375
C250
C390
C248
C245
C246
R255
R254
13
R366
R355
C355
R145
R146
R147
R148
R368
R364
R373
C249
R372
C247
R358
C404
R256
C405
C366
C403
C357
R357 R360
C254
R354
C354
C365
C409
R365
R356
C356
C359
R353
R351
C351
Q940
Q938
Q939
Q936
Q941
Q937
Q102
Q101
Q935
Q106
Q104
Q241
Q210
Q601
IC404
IC902
IC931
IC402
IC553
IC101
IC786
IC552
IC304
IC781
IC491
IC351
IC251
IC211
IC701
IC603
IC741
A
B
C
D
E
F
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3
W285
8
4.3 JACB ASSY
SIDE A
A
JACB ASSY
C
(VNP1887-C)
GREEN & BLUE & REDYELLOW
17
1
V+12V
C804
GNDD
W306
W305
D
AUDIO_R
SQEEZE
VSEL1
GNDA
W218
V+12V
W436
W266
C781
AUDIO_L
V+5V
7
GNDD
W215
W262
W263
W264
W265
W307
19
W216
GNDD
W337
CN801
W432
GNDD
+5V
W297
W335
W214
GNDD
W431
W298
C782
W336
E
KN102
B
CODE SECTION 25249.6- PROPOSITION 65
GNDD
W217
ELECTRICAL PARTS CONTAIN CHEMICALS WHICH ARE KNOWN
THIS PRODUCT CONTAINS LEAD IN SOLDER AND CERTAIN
TO THE STATE OF CALIFORNIA TO CAUSE CANCER, BIRTH
DEFECTS OR OTHER REPRODUCTIVE HARM. HEALTH & SAFETY
Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
The mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
When ordering resistors, first convert resistance values into code form as shown in the following examples.
Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%,
and K=10%).
Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).
Tangential and Radial Height Coarse Adjustment
DVD Jitter Adjustment
Initialize the Focus Sweep Setting
Electrical adjustments are not required.
Adjustment Points (Mechanism Part)
Cautions: After adjustment, adjustment screw locks with the
Screw tight.
Screwdriver (large)
TV monitor
Precise screwdriver
DVD test disc
(GGV1025)
Test mode remote control
unit (GGF1067)
Screw tight
(GYL1001)
Screwdriver (medium)
6. ADJUSTMENT
6.1 ADJUSTMENT ITEMS AND LOCATION
A
B
6.2 JIGS AND MEASURING INSTRUMENTS
C
D
E
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6.3 NECESSARY ADJUSTMENT POINTS
A
WhenAdjustment Points
Exchange Parts of Mechanism Assy
Exchange the Pickup
Mechanical
point
~, Ÿ, !
∗ After adjustment, screw locks
with the Screw tight.
Electric
point
B
Exchange the Traverse Mechanism
Mechanical
point
!
Electric
point
Exchange the Spindle Motor
Mechanical
point
Ÿ, !
∗ After adjustment, screw locks
with the Screw tight.
Electric
point
C
Exchange PCB Assy
Exchange PC Board
LOAB, DVDM ASSY
Mechanical
point
Electric
point
D
∗
Purpose: To set the sweep which was correct with the
Be sure to perform the following step finally when replaced
Pickup, Traverse Mechanism and Spindle Motor.
E
individual Traverse mechanism.
ESCCLEAR
GGF1067
Test mode
remote control
unit
(It is necessary when performed adjustment procedure Ÿ.)
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6.4 TEST MODE
TEST MODE: ON
TEST MODE: DISC SET
DSC - &&&
GGF1067
Test mode
remote control
unit
GGF1067
Test mode
remote control
unit
POWER
ON
<TRAY OPEN>
OPEN/CLOSE
(Player or Remote
Control Unit)
OPEN/CLOSE
(Player or Remote
Control Unit)
DVD disc
TEST MODE: PLAY
TEST MODE: OFF
An address is displayed
For example, when playback with # 30000
During PLAY
Press keys in order
OR
ESC
OFF
POWER
030000
<PLAY>
< When playback with the target address of disc (DVD)>
TV/LDP
+1030000CHP/TIM
ESCTEST
CHECK
DVD, CD
5678
A
B
C
D
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6.5 MECHANISM ADJUSTMENT
A
Tangential and Radial Height Coarse Adjustment
1
START
• Remove the servo mechanism.
• Remove a Spacer for height adjustment
attached to the back side (shaded area)
of the Servo Mechanism (Float Base) with
nippers.
B
Spacer for Height adjustment
Note:
Turn the Short switch to Short side when
removing the Pickup Flexible Cable.
(Refer to "7.1.9 DISASSEBLY".)
C
Servo Mechanism
Float Base
Cautions:
Because there is not a Spacer for height adjustment in
adjustment after the second time, will keep it at need.
(This parts is Traverse mechanism exclusive use of a model
for 2001 years)
7.3mm
Put a spacer between a Tangential (or Radial) adjustment
screw and Mechanism Base and turn each screw to adjust
the height. (Refer to "6.1 ADJUSTMENT ITEMS AND
LOCATION".)
Turn a flat side
into bottom
D
E
F
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Player
Monitor
• Test mode
• Play the DVD test disc
at outer track
(around #200000)
• Play the DVD test disc
at inner track
(around #30000)
• Play the DVD test disc
at outer track
(around #200000)
Mechanism Assy
Adjust the Tangential
Adjustment Screw so that
jitter becomes minimum.
Mechanism Assy
Readjust the Tangential
Adjustment Screw so that
jitter becomes minimum.
Mechanism Assy
Adjust the Radial
Adjustment Screw so that
jitter becomes minimum.
Use disc: GGV1025
START
DVD Jitter Adjustment
2
J4 : - - - -
J4 : Min
J4 : Min
Test mode end
J4 : Min
ESC
Disc playback normally.
• The measurement of block error rate
If error rate is OK,
locks a root of
tangential and radial
adjustment screws with
the Screw tight, and
go to step
!.
Screw tight: GYL1001
Turn the POWER OFF in
case of NG once, and
perform the adjustment
once again.
Confirm the error rate that is
displayed "OK"
(Example ER (av): 2.5e - 5-*OK )
5ESC
CHECK
NG
OK
• Playback method of inner and outer address for the purpose is refererd to "6.4 TEST MODE".
• Jitter indication of the monitor is refererd to "7.1.3 TEST MODE SCREEN DISPLAY".
A
B
C
D
E
F
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Initialize the Focus Sweep Setting
3
A
B
Purpose: To set the sweep which was correct with the individual Traverse mechanism.
Turn on the Player
ESCCLEARPOWER
Note: Be sure to perform this step when replaced the Pickup or Traverse mechanism.
C
D
E
F
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Entering the ID Number and ID Data for Players with DVD-Audio and DVD-RW
Compatibility
To enter the input mode, press ESC + STEREO in a status with
no ID number set, such as after FLASH-ROM downloading.
• Downloading FLASH-ROM is finished. (The latest version must be downloaded when a repair is made.)
• "No ID Number" is displayed on the screen or FL display immediately after the power is turned on or in Stop mode.
• If "No ID DATA" is displayed, the ID data must be entered.
Important: If no yellow label is found on the rear panel, write down the specified ID number by checking it according to "How
to confirm the ID number" shown below.
Note:
Be sure to enter the ID number in Stop mode.
Use the service remote control (GGF1067) for operations. Only opening/closing of the tray are performed from the player.
Use Disc No. : GGV1084
It is necessary for a player with DVD-audio and DVD-RW compatibility to set an individual number (ID number) and ID data. If the
number and data are not set correctly with the following procedure, operations in the future may not be guaranteed. You will find the ID
number to be set on the yellow label on the rear panel.
The Input is Necessary When:
How to Input the ID Number and ID Data
[Player's ID Number Setting]
ID Number ?
> - - - - - - - - -
<CLEAR> Exit
Input ID Number !
1
As number input is enabled when the unit enters the input
mode, input the 9-digit ID number.
(The entered number is also displayed on the FL display.)
2
2
[Player's ID Data Setting]
<CLEAR> Exit
Insert The ID Data Disc !
When the ID number has been registered, the unit enters the
ID data input mode. (The FL display indicates "NO ID DATA.")
In this condition, place the ID data disc on the tray and close
the tray using the CLOSE key "7/0" on the player.
4
4
[Player's ID Data Setting]
Loading The ID Data Disc !
While the data are being read, the message shown in the
figure at left is displayed on the screen.
(The FL display indicates "RD ID DATA.")
5
5
[Player's ID Number Setting]
ID Number ?
> 0 0 0 0 0 0 0 0 1 OK ?
<PLAY> Compare Mode
<SEARCH> Enter
Input ID Number !
After inputting the number, press SEARCH to register the ID
number.
3
3
7. GENERAL INFORMATION
7.1 DIAGNOSIS
7.1.1 ID NUMBER AND ID DATA SETTTING
A
B
C
D
E
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6
When the ID data have been read, the data are written to the
FLASH-ROM.
(The FL display indicates "WR ID DATA.")
A
[Player's ID Data Setting]
Wait Rom Writing !
6
B
7
When the ID data have been written to the FLASH-ROM, the
message "Rom Write OK" is displayed on the screen.
(The FL display indicates "ID DATA OK.")
After confirming this message, press CLEAR to exit the input
8
mode.
[Player's ID Data Setting]
Rom Write OK !
7
<CLEAR> Exit
8
How to Confirm the ID Number
1
Press ESC + STEREO with an ID number set, and the unit
enters the ID number confirmation mode.
2
The set ID number is displayed on the screen (and on the FL
display), permitting you to confirm it.
To exit this mode, press CLEAR .
3
C
[Player's ID Number Setting]
ID Number ?
[ 0 0 0 0 0 0 0 0 1]
2
Compare
> * * * * * * * * *
<CLEAR> Exit
3
Input ID Number !
D
How to Clear the ID Number
1
Press ESC + STEREO with an ID number set, and the unit
enters the ID number confirmation mode.
2
Input the same number as the ID number you have set.
[Player's ID Number Setting]
ID Number ?
E
[ 0 0 0 0 0 0 0 0 1]
Compare
2
> * * * * * * * * *
<CLEAR> Exit
Input ID Number !
3
After inputting the number, press STOP .
Only when the entered number matches the set ID number, the
ID number is cleared and the unit exits this mode.
If the numbers do not match, you must return to step 2.
( STOP is not accepted until 9 digits are entered.)
[Player's ID Number Setting]
ID Number ?
[ 0 0 0 0 0 0 0 0 1]
Compare
> 0 0 0 0 0 0 0 0 1 OK ?
<PLAY> Enter
3
<STOP> Memory Clear
Input ID Number !
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Character in bold : Item name
: Information display
Laser diode current value
Symptom
• Indicates "No Disc" in FL display.
• Player does not playback, etc..
This unit can confirm the laser diode current value (DVD: 650nm, CD: 780nm) of pickup on the Test Mode screen.
(Press the ESC → TEST keys in order on the test mode remote control unit (GGF1067) to enter the test mode.)
Note : When a DVD disc or a CD disc is played in the test mode, this function is effective.
Procedure of Self-Diagnosis
1 Enter the Test mode.
2 When diagnosing the 650nm laser diode:
Press the → keys in order, and turn on the laser diode (It light-up for nine seconds.).
When diagnosing the 780nm laser diode:
Press the → keys in order, and turn on the laser diode (It light-up for nine seconds.).
When let it turn on once again after performed 2 once,
After pressed REP.B key once
650nm: Press the → keys in order
780nm: Press the → keys in order
3 Confirm the indicated value of the laser diode current (LDI). (Refer to following figure.)
4 When indicated value is more than 100, pickup is defective. → Replacement is necessary
Replace the Traverse Mechanism Assy or Pickup.
TEST1
TEST1
TEST4
TEST4
It's effective in case of the following condition.
7.1.2 SELF-DIAGNOSIS FUNCTION OF PICKUP DEFECTIVE
A
B
C
D
E
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7.1.3 TEST MODE SCREEN DISPLAY
Display Specification of the Test Mode
A
B
Character in bold : Item name
: Information display
1
5
6
21
22
23
24
10
11
1 Address indication
The address being traced is displayed in number.
(as for the DVD, indication of decimal number is possible.)
DVD : ID indication (hexadecimal number, 8 digits)
[∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗]
CD : A-TIME (min. sec.) [0 0 0 0 ∗ ∗ ∗ ∗]
2 Code indication of remote control unit [R – ∗ ∗ ∗ ∗]
Automatic setting : [AUTO]
Scart terminal output [SK – ∗ ∗]
(Display only the WY model which can do the output setting
of scart terminal.)
VIDEO: [00]
S-VIDEO : [01]
RGB: [02]
0 (1) Disc sensing [DSC – ∗ ∗ ∗]
The type of discs loaded is displayed.
[DVD], [CD ], [VCD], [ ]
(2) CD 1/3 beam switch [BM – ∗ ∗ ]
- Jitter value [J – ∗ ∗ ∗ ∗]
Make the jitter four times, and renew it in every 0.5 second.
[J4 – ∗ ∗]
= Version of the AV-1 chip / version of firmware
[AV: ∗ ∗ / ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗]
~ Version of the FL controller [FL: ∗ ∗ ∗ ∗]
! Region setting of the player [REG: ∗]
Setting value : [1] to [6]
7 Mechanism (loading) position value [M – ∗ ∗]
Unknown : [01] or [41]
Open state: [04]
E
Close state : [08]
During opening : [12]
During closing : [22]
8 Slider position [S – ∗ ∗ ∗ ∗]
CD TOC area : [IN ]
CD active area : [CD]
F
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@ Destination setting of the FL controller
[MDL: ∗ ∗ ∗ ∗ / ∗ ∗ ∗]
Four characters in the front represent the type of model.
Three characters in the back represent the destination code.
J: /J, K: /KU, /KC, /KU/KC, R: /RAM/RL/RD, LB: /LB,
WY: /WY
# Part number of the flash ROM and system controller
[∗ ∗ ∗ ∗ ∗ ∗ / ∗ ∗ ∗ ∗ ∗ ∗]
$ Version of the flash ROM [V: ∗. ∗ ∗ ∗]
Flash ROM size [FLSH = ∗]
% Revision of the system controller [S: ∗ . ∗ / ∗ ∗ ∗ ]
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^ (1) Revision of the DVD mechanism controller
[M: ∗ / ∗ ∗]
(2) Part number of the GUI-ROM (OEM model)
[GUI: ∗ ∗ ∗]
(3) HOST conversion [HOST: ∗ ∗ ∗]
* AGC setting [AGC – ∗ ∗ ∗ [∗] ]
AGC on : [AGC-ON]
AGC off : [AGC-OFF]
[1] : RFAGC on [0] : RFAGC off
( FTS servo IC information
DSP coefficient indication[KS – [∗ ∗ ∗ ∗] ∗ ∗ ∗ ∗ ]
Displays the address (four digits) of the specified coefficient
and the setting value (four digits) with [TEST] and [9] keys.
) Error rate indication
1 C1 error value of CD [ER – C1 ∗ ∗ ∗ ∗ ]
2 C1 error value of DVD [ER – ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ]
_ Internal operation mode of mechanism controller
[MM – ∗ ∗ : ∗ ∗]
Internal mechanism mode (2 digits) and internal mechanism
step (2 digits) of the mechanism controller
A
B
C
D
E
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7.1.4 SELF-DIAGNOSIS FUNCTION
When enter the service mode, self diagnosis mode operates with the "ESC"+"CHP/TIM" keys automatically.
1 Mechanism Error History (past eight times of error is displayed)
A
Two columns of the beginning display the error status for mechanism controller.
(the details of error contents refer to "7.1.4 Error Display".)
Eight columns of the back display the count UP value (turned count up every 20msec) from the power-up.
Example) 32h ⋅=. 1 sec, BB8h ⋅=. 1 min, 2BF20h ⋅=. 1 hour
In addition, when there was error after power-up immediately (till initial setting is completed), turn the most significant bit to ON.
2 Check Item Display of Self Diagnosis Function
a) AV1 Host Bus check (possible the check only during stop) (Read & Write process of an internal specific register)
AV_1 : OK
: −−⇒ not yet check
b) Bus check between AV1 SDRAM (possible the check only during stop) (Read & Write process to the SDRAM)
B
c) DMA transfer port check from F.E. to AV1 (during stop, possible the check only in DVD or NO DISC)
(writing from F.E to SDRAM and reading of SDRAM)
d) Video encoder (ADV∗∗∗∗) check (Read of the specific register)
e) DSP check (Read of the specific register)
C
f) SACD check (Read of the specific register)
g) 1394 relation HOST controller check
h) 1394 relation Mercury CHIP check
: HOST BUS NG⇒ HOST bus NG
AV_2 : OK
: −−⇒ not yet check
: AV1-SDRAM BUS NG ⇒ Bus NG between AV1 and SDRAM
AV_3 : OK
: −−⇒ not yet check
: FE-AV1 DMA NG⇒ Bus NG between F.E and SDRAM installed outside of AV1
VE: OK
: NG ADV, ⇒ ADV register reading NG
: NG > ADV, ⇒ ADV communication NG of FR to video encoder
: NG > PRO⇒ Communication NG from EBY to progressive decoder
DSP: OK
: NG⇒ DASP NG
SACD : OK
: NG⇒ SACD NG
HOST : OK
: NG⇒ HOST controller NG
MERC : OK
: NG⇒ Mercury CHIP NG
Display the mechanism error history and self diagnosis result by pressing the "CHP / TIM" key once again.
Afterwards press the "CHP / TIM" key with toggle and change the display.
D
Display screen of mechanism error history and self diagnosis result
1
E
F
(a)
(b)
(c)
(d)
(e)
(g)
(h)
2
(f)
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Indication contents
1
2
3
4
• FL indication of EDC / ID error (short cut function)
Indicate it in FL with the "ESC"+"CX" keys (LD remote control unit).
Indication is released with the "ESC" key during display.
FL indication contents
0 0 / 0 0 / 0 1 ∗
Indicate number of the location that caused EDC and ID errors
Retry number of times at having caused ID error (error is indicated only in the occurring moment)
Retry number of times of the latest ID error in the ST system
Retry number of times at having caused EDC error (error is indicated only in the occurring moment)
Retry number of times of the latest EDC error in the ST system
∗ Mark: When even once causes AV1 error, lights.
• Screen display of the service mode
Indicate to the screen with the "ESC"+"CHP/TIM" keys.
Release the indication with the "ESC" key.
Indication contents
1 ID Address
2 DVD in playback: Error rate regular indication and exponent
indication
CD/VCD in playback indicates the number of correct frame of
C1 error /5 seconds.
3 Self diagnosis indication
Indicate the self diagnosis result whether the F.E is normal.
Self Check: During FE checks
Self Check OK: Abnormality is not found in F.E.
Self Check Error: Abnormality is found in F.E.
Indicate the mechanism error history and self diagnosis result
by pressing the "CHP / TIM" key once again.
Afterwards press the "CHP / TIM" key with toggle and change
the display.
Indication of the mechanism error history and self diagnosis
result refer to "7.1.1 self diagnosis function".
4 Error information indication of the AV decoder
(a)
When a retry occurred in reading from the disc, a history
indicates the occurrence location and the occurrence reason.
History is indicated to past seven times.
Eight columns of the beginning show the physical address
which occurred of retry.
As for four columns of next, bitmap indicates EDC status. LSB
shows the first sector during a block and MSB shows a last
sector.
Following field indicates the retry number of times.
One digit in front of " / " shows number of times of the retry by
EDC Error which occurred in the same block in succession.
One digit after " / " shows number of times of the retry by ID
Check Error which occurred in the same block in succession.
" * " of last one digit shows the EDC Check NG Count Over.
" # " shows the ID Check NG Count Over.
When " * " and " # " are not indicated, show that data were
rightly readable by retry process.
(b)
Indicate the error information that detected with the Audio/Video
Decoder. When error occurred, a history indicates the
occurrence time and the occurrence reason. History is indicated
to past seven times.
Field in front of ":" indicates the error information of Audio/Video
Decoder.
(Indication information is different from Fujitsu Decoder with
Mitsubishi Decoder)
02 model is 656 series and 757 series is Mitsubishi model.
• Specification for the Audio/Video Decoder (M65773FP) model
of Mitsubishi
bit0: Start-up Sequence Time-out Error detection
Following field in " : " indicates a value of STC (System Time
Clock) which detected the above Audio/Video Decoder error.
∗ When often perform the switch of debug screen, an error history
will be increased.
As for this, CPU power is used for update of OSD drawing,
symptoms occur so that control of VBR Buffer is not in time.
(a)
4
(b)
7.1.5 FUNCTION SPECIFICATION OF THE SERVICE MODE
A
B
C
D
E
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7.1.6 ERROR DISPLAY
Error codes that are displayed on the FL display without using the remote control unit
A
B
FL DisplayPossible causesOperation of the unit
AV1 VERAV-1 chip is not a match with the program of system controller
CPU AERRCPU address error (Hardware is unusual.)No operation
DMA AERRDMA address error (Hardware is unusual.)No operation
FLASH ID
FLASH WRPWrite protect error of the flash ROMNo operation
FLASH SIG
FLASH SUM
FLASH SIZSize error of the flash ROM (Use 4 or 8 M-bit.)No operation
GUI ROM ERRORDifference in version of GUI ROM and system controller software.Operate as the OSD model
ILLGAL
MECHA CPU
RESERVEUndefined interrupt (Hardware is unusual.)No operation
SLOTInappropriate slot command issued (Hardware is unusual.)No operation
Difference in versions of the internal ROM of the system controller and of the flash
ROM, or bus line failure or reverse installation
Difference in part number of the flash ROM (When the ROM which could't be used
was used.)
Check sum error of the flash ROM (It exceeds the regular size.) or reverse installation
(Hardware is unusual.)
The system controller fetched a code other than an operation code (Hardware is
unusual.)
Difference in version of the internal ROM of the mechanism controller and of the flash
ROM.
The sound may not out with
the specific audio.
No operation
No operation
No operation
No operation
No operation
Error codes that are displayed on the FL display by using the remote control unit
(Mechanism controller error)
C
To display: ESC + DISPLAY + DISPLAY; Location of the display: At the two digits of center of the FL display
To display the error history: ESC + DISPLAY + One shot; Location of the display: TV screen
Description of
FL
11 Search timeout
12
19
D
1B
1C
E
F
22
23
33
38
Error
Search retry
error
Tracing timeout
while converging
Index 0 search
error
Embossment
plunge error
(only a model
corresponding to
RW)
Timeout of slider
inner
circumference
Timeout of slider
outer
circumference
No FOK pulse
during playback
Disc-typesensing error
Search could not be complete within 7
seconds.
More beyond the target while the read-in search was converging. A search could not
be completed after 3 retries while the unit was tracing 11 tracks. A search could not
be completed after retry when timeout occurs at read-in.
Timeout (10.5 seconds) while tracing at
the stage of convergence of a search.
Plunged into unreadable embossment of
DVD-RW player.
Inside switch could not ON within 3 seconds.Stop
Inside switch could not OFF within the following times:
at ATB: 2 seconds, at Backup: 2 or 2.02 seconds.
When the focus was deviated continuously 20 times.
Were not able to playback from the disc distinction process.
PLAY or STOP was not completed by backup operation of the disc distinction.
Distinguished it from the blank disc in the ATB process completion.
Causes if with a DVDCauses if with a CDOperation of the Unit
Search could not be complete within 7
seconds, and it could not enter the target
area within 7 seconds by VCD scan.
During Track (Index) Search, the search
for the beginning of a program could not
be completed within 3 seconds (20
seconds in the case of Index Search)
after positioning based on the TOC data
was completed.
CD : Stops,
DVD: Continues operation
CD: Stops,
DVD: Continues operation
Stop
Stop
1. In wobble nothing (error
distinction) : search to
address 2E400h
2. In wobble existence:
Tray open
Stop
Adjusts focus at the innermost
circumference and tries to
return to its position where the
error was generated (for 3
times),then opens.
If the same error persists after
one retry, the tray opens. (No
FOK pulse)
Open
72
1234
DV-656A-S
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FL
Description of
Error
Causes if with a DVDCauses if with a CD
Operation of the Unit
39
SGC converge
timeout
SGC could not converge during detects the peakOpen
41 Spindle timeout
The unit did not enter Stop mode within 10 seconds of issuance of a Stop command.
Disc distinction is not completed even if passes for 10 seconds after the spindle turned.
Stop
48
Spindle FG transition
timeout
Did not reach to the rotating speed that ATB was
possible for less than 10 seconds. Did not reach aim
CAV lock speed (high: 10%, low: 50%) for less than 10
seconds. CAV process passed more than 5 seconds or
abnormal speed was detected. Spindle does not lock for
less than 3 seconds in the BCA read start or end.
Stops. (FG timeout)
49
Spindle PLL
transition timeout
CAV process passed more than 5 seconds. Abnormal speed was detected.
Stops.
("73" is displayed during
starting process.)
4A Spindle lock timeout Spindle could not lock more than 1.5 seconds before start the AFB.
Stops.
("73" is displayed during
starting process.)
51
Auto sequence
timeout of peak
detection
ABUSY did not return within 1 second after the DDTCT
(peak detection) command was sent.
Stop
52
Auto sequence
timeout of focus
jump down
ABUSY did not return within 30 mS after the FJMPD
(Focus jump 1 to 0) command was sent.
Open
53
Auto sequence
timeout of focus
jump up
ABUSY did not return within 30 mS after the FJMPU
(Focus jump 0 to 1) command was sent.
Open
54
Auto sequence
timeout of play AGC
ABUSY did not return within 50 mS after the GSUMON
(play-AGC-measuring) command was sent.
Stop
55
Auto sequence
timeout of disc-typesensing
ABUSY did not return within 2 seconds after the
DJSRT (disc-sensing) command was sent.
Stop
56
Auto sequence
timeout of ATB2
ABUSY did not return within 1 second after the
TBLOFS (Internal ATB after the completion of external
ATB) command was sent.
Stop
57
Auto sequence
timeout of tracking
servo ON
ABUSY did not return within 0.5 sec. after the TSON
(tracking servo ON) command was sent.
Stop
58
Auto sequence
timeout of ATB1
ABUSY did not return within 0.2 sec. after the TBL
(external ATB) command was sent.
Stop
59
Auto sequence
timeout of focus gain
adjustment
ABUSY did not return within 2 seconds after the FGN
(focus gain adjustment) command was sent.
Stop
5A
Auto sequence
timeout of tracking
gain adjustment
ABUSY did not return within 2 seconds after TGN
(tracking gain adjustment) command was sent.
Stop
5B
Auto sequence
timeout of offset
adjustment
ABUSY did not return within 1 second after the AVE
(offset adjustment) command was sent.
Stop
5C
Auto sequence
timeout of
modulation factor
measurement
ABUSY did not return within 200 mS after the ADJMIR
(modulation factor measurement) command was sent.
Stop
5D
Auto sequence
timeout of auto focus
bias
ABUSY did not return within 2 seconds after the AFB
(auto focus bias) command was sent.
Stop
5F
Auto sequence
already busy
A command could not be sent because ABUSY was
low. ABUSY did not return within 200 mS after TLV
command was sent.
Stop
62 Pause retry error
Pause mode could not be restored within three retries
after it had been released.
Continues operation
71
ID reading check
during playback
An ID could not be read for 1 second or more.Stop
72
Subcode check
failure during
playback
No frame could be read for 3
seconds or more.
Stop
73
ID can not read
during startup
An ID could not be read within 1 second after the AFB
tracking on.
Opens
(ID readout failure)
DV-656A-S
56
7
A
B
C
D
E
F
73
8
Page 74
1234
Description of
FL
A
B
C
D
74
A1
A2
A4
B1
B2
B3 Retry error for trace
C3
(C5)
F5 Tray being pushed
F6 Code reading NG
F8 Loading timeout
FC Focus
Error
Subcode check
failure during startup
Communication
timeout of DSP
command
Communication
timeout for reading
DSP coefficient
Communication
timeout for
continuously writing
DSP coefficient
Timeout error for
backup
Retry error for
backup
Detection of tracking
overcurrent
Short-circuit test
corresponding error
A command could not be issued to DSP because
Command Busy (XCBUSY) was in force
(XCBUSY = L) for a specified time (about 200
µS).
Command Busy (XCBUSY) was in force for a
specified time (about 200 µS) before and after a
coefficient read command was issued to DSP, or
the address echo-back after command issuance
did not match the setup address.
Command Busy (XCBUSY) was in force for 200
µS during continuous coefficient writing, or before
and after a continuous write command was
issued to DSP.
In the backup sequence, codes could not be read for fixed time.Stops
Cannot close tracking even if performs backup fixed number of times.Stops
During tracing, do not restore after the runaway detection backup was performed
several times.
During playback, the overcurrent detection port was at L for 300 ms or more
continuously.
After the overcurrent detection (C3 error), furthermore the overcurrent detection port
was at L for 300 mS or more continuously.
The tray switch that had been Open mode was forcibly changed to a mode other
than Open by an external force.
Loading or unloading could not be completed
within a specified time (about 10 seconds).
Though a portable cover is opening, when a
close command was issued from the system
controller.
• Focus ON sequence could not be completed more
than two seconds.
• Auto sequence command was finished, actually
focus ON was not completed.
• Focus did not enter even if retried it eight times.
Causes if with a DVDCauses if with a CDOperation of the Unit
Subcode could not be read within 1
second after the tracking on.
(PH code nothing) When Philips
code is not readable during LD
starting, and a code was not
readable after the slider moved to
FWD and REV directions slowly
each for five seconds.
(PRD) In the CD starting, when a
subcode of TOC part was not
readable, but the subcode of the
program area was readable.
Opens (Subcode readout
failure).
Open
Open
Open
Stops
Stops (the mechanical
controller operates
independently).
Turns off the power
instantly (No indication on
the FL display and no
writing to flash memory)
Closes
Search, scan and special
playback prohibition,
Playback as playback
CD-R (PRD mode) as it is.
Reverses the loading
direction. It timeout is
repeated upon retry, the
unit stops.
Stops wherever possible
then opens (stops in the
case of side B).
Error codes that are displayed on the FL display by using the remote control unit (Device error)
To display: ESC + DISPLAY + DISPLAY; Location of the display: At the two digits of left of the FL display
E
F
74
FLDescription of ErrorCauses if with a DVD Causes if with a CDOperation of the Unit
bit4=1 10 etc.
bit3=1 08 etc.
bit2=1 04 etc. LSI11 access error
bit0=1 01 etc. SRAM access error
Mechanism controller RAM
check sum error
AV1 access error
(read, write NG)
No operation or it becomes debugging
indication if the power is able to ON.
DV-656A-S
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SIDE ASIDE A
CN551
R476
C484
R492
R474
C480
R485
R491
R481
R475
R473
R490
C476
R489
IC481
C471
27M
C
R488
CN901
C933C931
R948
Q934
Q932
R963R964
R933
R996
C932
Q933
R960
R944
R947
R940
R945
R957
R959
R958
RFO
TE
FE
CN401
CN103
CN111
CN115
CN114
CN502
CN531
CN402
R264
R266
C266
R261
R262
R263
RPWM
PPWM
FPWM
VPWM
IC261
IC801
IC201
IC302
IC601
DVDM ASSY
B
RFO
2
TE
4
FPWM
8
VPWM
9
PPWM
10
RPWM
11
Pr
2017
Pb
1916
Y
V
C
Y
1814
13
12
15
22/24AV1
22/24M
16MEBY
16MDSP
33MEBY1
33MSACD
36MEBY
27MDSP
27MAV1
7.1.7 TEST POINTS LOCATION & WAVEFORMS
A
B
C
D
E
F
56
DV-656A-S
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8
75
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1234
WAVEFORMS
Note : The encircled numbers denote measuring point in the schematic diagram.
A
B
DVDM ASSY
B
Measurement condition
: No. 2, 4 and 8 to 11 : MJK1, Title 1-chp 1 No. 12 to 14 : DVD-REF-A1, T2-Chap.1
No. 15 to 20 : DVD-REF-A1, T2-Chap.19
Foot of R963 (C)
13
V: 0.2V/div. H: 10µsec/div.
Q106-emitter (RFO)
2
V: 500mV/div. H: 0.1µsec/div.
AC mode
GND
Foot of R261 (FPWM)
8
V: 1V/div. H: 10µsec/div.
GND
Foot of R960 (Y)
14
V: 0.2V/div. H: 10µsec/div.
Foot of R958 (Pb) Progressive
19
V: 0.2V/div. H: 10µsec/div.
Foot of R957 (Pr) Progressive
20
V: 0.2V/div. H: 10µsec/div.
Foot of R262 (VPWM)
9
V: 1V/div. H: 10µsec/div.
Foot of R959 (Y)
15
V: 0.2V/div. H: 10µsec/div.
C
GND
IC101-pin 42 (Tracking Error)
4
(AI-Inner Tracking Off)
V: 500mV/div. H: 2msec/div.
AC mode
D
GND
Foot of R263 (PPWM)
10
V: 1V/div. H: 0.2msec/div.
Foot of R264 (RPWM)
11
V: 1V/div. H: 5msec/div.
GND
GND
Foot of R958 (Pb)
16
V: 0.2V/div. H: 10µsec/div.
Foot of R957 (Pr)
17
V: 0.2V/div. H: 10µsec/div.
E
Foot of R964 (V)
12
V: 0.2V/div. H: 10µsec/div.
Foot of R959 (Y) Progressive
18
V: 0.2V/div. H: 10µsec/div.
F
76
DV-656A-S
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START
Is FL turn on ?
Is tray open ?
Is the indication
of FL normal ?
Power ON
Yes
Yes
Yes
No
No
No
Turn on the power again
after 2 - 3 minutes.
• Micro-fuse on the POWER SUPPLY Unit blows out.
(P101 and P102)
FL indication is dark or flickers.
Indicates the error messageRefer to the section "7.1.6 ERROR DISPLAY".
• Tact-switches are damaged. (incase of only a key NG)
FLKY IC101-pin 22 is it around +1.2V when you pushed a POWER key?
• Wireless remote controller receiver or IR signal line or SEL IR signal line is damaged.
(incase of only a key of wireless remote controller NG)
Does FLKB IC101-pin 17 (SEL IR) and IR and SEL IR signal lines change 0V–3.3V
when you pushed a wireless remote controller key?
• Fuse of the primary side blows out.
• As for P-CONT of POWER SUPPLY Unit is around 3.3V. Micro-fuse on the POWER
SUPPLY Unit blows out. (Check the each voltage.)
P101–P102 or POWER SUPPLY Unit is damaged.
• FL controller IC (IC101) or RESET IC (IC102) on the FLKY Assy is damaged.
Are IC101-pin 12 (XRESET) and pin 11 (POWER ON) "H" level together?
• Check the following connections :
POWER SUPPLY Unit - DVDM Assy
DVDM Assy - JACB Assy
DVDM Assy - FLKY Assy
• Check each voltage regulators of DVDM Assy :
IC791-pin 1 (+1.8V), IC404-pin 4 (+3.3V), IC402-pin 1 (+5V), IC403 (+2.5V)
• Check each voltage (EV+6V, EV+4V, SW+3.3V, +12V, -28V, FLDC+ and FLDC-)
(If above voltage are not supplied, check the micro-fuse P101–P104.)
Are not there short and open-circuit between output connector of POWER SUPPLY
Unit and CN401 of DVDM Assy?
• R103 of POWER SUPPLY Unit is damaged. No -28V voltage appear.
• Short or open the zenner diode on the POWER
SUPPLY Unit. (D302)
• Check the address bus and data bus of signal
interface between FR CPU (IC601)–AV1 (IC751),
Eby-Chip (IC701) and Servo DSP (IC201).
• Check each voltage regulators of DVDM Assy :
IC404 (+3.3V) and IC403 (+2.5V)
Clock generator IC481 or crystal resonator X481 is damaged.
Check waveform of each pin whether IC481 does oscillation.
• Check the loading drive signal : IC351-pin 14, 15, 16
• Check the +6V and +12V power supply voltage
(If above voltage is not supplied, check the micro-fuse P101 and P102.)
7.1.8 TROUBLE SHOOTING
A
B
C
D
DV-656A-S
56
E
F
7
8
77
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A
• Check the following connections and drive IC :
Carriage does
not move.
(Stepping positioning)
Yes
B
• Laser diode
does not light.
• Focus does
not in.
Yes
No
No
DVDM Assy CN104 (4P flexible cable)
Check the Stepping motor signals, IC351-pin 31, 32, 34, 35 and IC601-pin 47, 48.
• Check the +6V and +12V power supply voltage
(If above voltage is not supplied, check the micro-fuse P101 and P102.)
• Check the following connection, IC351, IC101, IC201 :
DVDM Assy CN101 - Pickup Assy (26P flexible cable)
IC351-pin 9, 10, IC101-pin41 and IC201-pin 32, 47 for Focus Drive
• Check the +6V and +12V power supply voltage and SW+5V
(If +6V voltage is not supplied, check the micro-fuse P101 and P102.)
• Check it whether the pickup is defectiveness.
Perform the section "7.1.2 SELF-DIAGNOSIS FUNCTION OF PICKUP DEFECTIVE"
and check the LD current value.
C101 (for DVD LD) and C103 (for CD LD) of DVDM are missing.
• Regarding DVD LD (650nm) :
Check each signals of CN101-pin 1 (MPD), pin 2 (LD Drive), IC101-pin 15 and Q101
Regarding CD LD (780nm) :
Check each signals of CN101-pin 1 (MPD), pin 7 (LD Drive), IC101-pin 17 and Q102
MPD: Monitor Power Diode (signal output)
C
Spindle
does not turn.
Yes
Do the video and
sound come on?
or beeing damaged?
D
E
(noisy)
Yes
OK
No
No
• Check the following connections and drive IC :
DVDM Assy CN105 (12P flexible cable)
Check the Spindle motor signals and IC251-each pins.
• Check the +6V and +12V power supply voltage
(If above voltage is not supplied, check the micro-fuse P101 and P102.)
• Check the connection between JACB Assy and DVDM Assy.
• Check voltage regulator of JACB Assy IC701-pin 2 (+5V) for Video circuit,
IC102 (+8V, +5V) for Audio circuit.
• Check the interface of 16M SDRAM (IC741) for Eby-chip (IC701) and 64M SDRAM
(IC781) for AV1 (IC751).
• Check digital data of video and audio signals (audio signals: 3 line data, video signals:
8bit data) shown to each schematic diagram and an analog signal line.
In addition, check CLK.
audio system: 22/24MHz, video system: 27MHz
Refer to the section "7.1.6 ERROR DISPLAY".Indicate the error message.
F
78
1234
DV-656A-S
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1
Remove the Bonnet (Screws × 6).
2
Turn power ON.
3
Open the Tray (0).
4
Remove the Tray Panel.
Bonnet and Tray Panel
1
1
Remove two Earth Lead Unit (Screws × 2).
2
Unhook ( × 6).
3
Release a Flexible Cable.
4
Remove the Front Panel.
Front Panel
3
1
Release three Flexible Cables.
(Flexible Cable)
This is not installed in this unit.
2
Remove two screws.
3
Release the PCB Support.
4
Remove the DVDM Assy.
DVDM Assy
4
1
Set the Test Disc.
2
Close the Tray (0). → Clamp the Test Disc.
3
Turn power OFF.
4
Pull out the Power Cord from the outlet.
Test Disc Set
2
4
4
1
Tray
DVDM Assy
Earth Lead Unit
Earth Lead Unit
Front Panel
Tray Panel
Test Disc
3
2
3
×2
Note :
When diagnosing the unit, be sure to use two extension cables for service (Part No. : GGF1157, GGD1298)
and a extension board for service (Part No. : GGF1430).
DIAGNOSIS OF PCBs
3
2
1
2
1
1
1
3
2
1
2
2
2
4
2
2
3
Cutting Pliers
PCB Support
Caution: SCRB Assy is not got in a model of the following photographs.
7.1.9 DISASSEMBLY
A
B
C
D
56
DV-656A-S
7
E
F
79
8
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1234
5
Diagnosis
Stand the DVDM Assy as figure below.
A
1
Connect two Extension Cables and a Extension Board as figure below.
2
17P Extension Cable
for Service
POWER SUPPLY Unit
B
C
Front Panel Section
Loading Mecha Assy
[GGF1157]
CN561
CN402
Extension Board for Service
[GGF1430]
1
DVDM Assy
21P Extension Cable
for Service
[GGD1298]
CN101
JACB Assy
SACDB Assy
(DV-45A Only)
D
Diagnosis
E
F
80
1234
DV-656A-S
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R831
R829
R827
R991
R824
R847
R819
R816
R817
R808
R807
R818
R815
R856
R848
R800
R918
R801
R966
R965
R964
R962
R840
R960
R839
R958
R843
R842
R841
R949
R946
R947
R948
R944
R945
R943
R913
C978
C979
R976
R979
R978
R977
R974
R973
R972
R975
R971
R832
R830
R828
R901
C991
IC991
R845
R846
R956
R952
R953
R929
R925
C931
C932
R833
R999
R992
R998
R942
R941
R983
R914
C910
R981
C908
C952
R919
C950
R844
R855
R967
R955
R806
R951
R834
R957
R959
R961
R968
R982
R980
R984
R987
R986
R985
R854
2.SACDSL
4.DSDBCK
6.DSD R
8.DSD L
10.DSD RS
12.DSD LS
14.DSD LFE
16.DSD C
18.DSDMCK
DSADMR
DSADML
000
1
2
3
4
5
6
7
8
9
2
11
22
33
44
55
66
77
88
99
8
VWG
AWX
1
5
191
CN902
1
Remove a Board to Board connector.
2
Set the SACDB Assy as figure below.
3
In this case an audio of SACD is not output from the Audio jack.
However, observe the signal waveform of CN902 on the SACDB Assy, and can confirm it.
CN902 - pin 2 (SACDSL), pin 4 (DSDBCK), pin 6 (DSD R), pin 8 (DSD L),
pin 10 (DSD Rs), pin 12 (DSD Ls), pin 14 (DSD LFE), pin 16 (DSD C).