Panasonic SA-VK950EE Service Manual ▷ View online
20.5. (F) Damp P.C.B. & (G) Speaker P.C.B.
A
B
C
D
E
F
G
1
2
3
4
5
6
7
8
9
H
I
J
K
L
M
N
O
P
DAMP P.C.B (REPX0544A)
0495A-1
0495A-1
SPEAKER P.C.B (REPX0544A)
0495A-1
0495A-1
G
F
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
23
22
2
1
23
22
2
1
23
22
2
1
1
2
4
3
1
2
4
3
12
12
1
7
23
22
2
1
1
2
4
3
1
1
1
2
4
3
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
6-C-
5-C+
4-R-
3-R+
2-L-
1-L+
1
8
14
2
3
6
5
4
3
2
1
5
4
3
2
1
2
3
4
5
6
7
8
9
10
11
12
11 109
8
7
6
5
4
3
2
1
2
3
2
3
7
1
11 10
9
8
7
6
5
4
3
2
1
2
3
12 11 109
8
7
6
5
4
3
2
1
6-LO-L-
5-LO-L+
4-HI-R-
3-HI-R+
2-HI-L-
1-HI-L+
6-R-
5-R+
4-L-
3-L+
2-LO-R-
1-LO-R+
5
10
15
20
5
10
15
20
5
10
15
20
5
10
15
20
C5330
C5306
R5106
R5104
R5103
C5129
C5128
C5125
C5134
C5116
C5110
R5305
R5307
C5326
C5106
C5121
C5215
C5209
C5213
R5206
C5329
C5315
C5322
C5317
C5324
C5310
C5222
R5205
C5205
C5221
R5202
R5203
C5233
C5234
C5226
C5223
C5307
C5308
C5107
C5112
C5111
C5210
C5211
R5303
R5204
R5306
R5209
C5314
C5321
C5316
C5323
C5327
C5328
C5320
C5214
C5212
C5218
C5219
C5220
C5206
C5225
C5207
C5224
C5118
C5126
C5319
C5119
C5120
C5113
C5122
C5127
R5108
C5123
R5105
C5114
C5108
C5117
R5107
C5302
C5303
C5309
C5208
C5230
C5103
C5102
C5202
C5109
C5318
C5325
C5124
C5216 C5232
C5115
R5301
R5300
R5102
R5100
R5201
R5200
C5201
C5301
C5200
C5100
C5101
C5300
C5130 C5131
R5109 R5110
C5132
R5207
R5208
C5227
C5228
C5229
C5313
C5311
R5302
C5312
R5304
C5333
C5334
R5309
C5331
R5308
R5408
IC5500
C5419
C5427
C5426
C5415
C5420
C5413
R5404
C5410
C5423
C5416
C5421
C5414
C5428
C5425
C5418
R5406
R5405
C5406
C5429
R5409
C5422
C5407
C5408
C5403
C5402
C5409
C5500
R5501
R5505
R5506
C5503
C5502
Q5501
Q5500
R5503
R5504
C5501
R5507
R5608
R5605
R5600
R5607
R5602
R5601
R5603
R5610 R5606 R5609
Q5603
Q5600
Q5601
Q5602
C5424
C5417
C5507
R5509
R5400
R5401
C5401
C5400
R5407
C5430
C5431
C5432
C5412
C5411
R5403
R5402
C5434
W6000
C5506
R5508
R5502
C5630
C5631
C5648
C5649
R5555
R5554
Q5551
Q5550
R5558
W6007
W6001
R5556
R5557
R5553
R5552
C5217
R5559
D5556
R5550
R5551
W6003
C5508
W6009
D5557
W6010
W6011
W6012
W6013
C5657
C5659
C5678
C5679
C5662
C5663
C5667
C5666
C5675
C5674
C5670
C5671
C5650
C5651
C5660
C5661
R5628
R5635
R5634
R5642
R5638
R5624
R5621
R5617
R5612
R5611
IC5100
IC5300
IC5200
C5105
C5104
C5204
C5203
C5305
C5304
W5176
W5185
W5167
W5170
W5160
W5165
L5603
L5602
C5645
C5643
C5642
C5644
C5332
C5231
W5159
W5179
W5175
W5184
C5133
W5162
W5168
W5173
W5180
W5189
W5210
W5209
C5640
C5641
CN5604
CN5502
CN5603
CN2810
IC5400
L5605
C5433
C5405
C5404
W5128
W5130
W5131
W5153
C5600
C5601
X5501
X5500
W5201
W5014
C5646
C5647
C5504
W5004
W5011
L5600
L5601
ZJ5001
ZJ5000
W5019
W5021
C5550
W5023
W5009
W5012
W5010
W5003
W5000
W5002
W5017
W5018
W5026
W5024
W5013
W5020
W5015
W5008
W5022
W5029
W5028
W5027
W5016
W5005
W5007
W5001
W5006
W5030
L5604
W6008
ZJ5003
W5132
W5133
W5134
W5154
C5744
C5745
W5135
L5607
L5612
L5613
L5608
L5610
L5606
L5609
L5611
JK5304
JK5302
JK5301
HW5604
W7000
W7005
K1
K5101
K5100
K5103
ZJ5002
W7003
W7004
W7002
W7007
W7006
W7008
W7001
W7009
W7010
PbF
CENTER/
SURROUND
SPEAKER
FRONT
SPEAKER
SUBWOOFER
PbF
HEATSINK
R5604
K5104
R5651
R5650
R5649
R5648
R5647
R5646
R5645
R5644
R5643
SA-VK950EE
116
20.6. (H) SMPS P.C.B.
A
B
C
D
E
F
G
1
2
3
4
5
6
7
8
9
H
I
J
K
L
M
N
O
P
SMPS P.C.B (REPX0543B)
AC IN
230V 50Hz
PbF
0494B-1
0494B-1
H
B
C
E
B
C
E
C
E
B
C
E
B
C
E
B
B
C
E
B
C
E
B
C
E
C
E
B
C
E
B
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
C
E
B
B
C
E
C
E
B
3
1
2
A CA A
A CA A
A
CA
A
1
3
2
1
2
3
4
1+
4-
~
~
12
16
1
1
2
3
4
1
4
5
8
1
10
7
6
1
12
4
2
1
3
4
1
4
4
2
1
2
1
11
10
10
9
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
3
1
2
3
4
2 1
2
3
3
3
5
2
3
4
2
4
5
6
7
8
15
14
13
12
11
10
9
11 10 9
8
7
6
5
4
3
2
1
3
2
1
2
1
7
6
2
3
2
3
4
5
8
9
PC5901
R5702
R5703
R5513
R5514
C5507
C5508
R5511
D5503
R5968
R5512
R5519
R5520
D5504
R5714
D5714
R5710
R5705
D5709
D5708
D5707
R5709
R5708
C5708
D5712
C5706
R5707
PC5703
R5901
R5803
D5805
R5812
PC5801
C5804
PC5805
R5813
R5814
R5808
R5807
R5809
R5811
D5804
C5802
R5810
C5808
R5815
R5712
R5902
R5904
C5905
R5903
R5910
C5926
R5961
R5962
D5912
R5711
R5907
C5904
R5908
R5908
R5909
C5510
C5511
D5703
C5509
Q5702
Q5705
R5965
R5966
QR5502
W5806
Q5802
Q5804
R5969
R5515
QR5500
C5709
D5914
D5501
C5809
C5717
C5920
W5649
R5750
R5751
Q5750
R5753
R5752
Q5751
R5754
Q5752
D5750
TH5750
W5650
Q5971
R5980
R5981
R5982
C5976
C5974
C5975
R5983
QR5503
C5013
C5056
C5089
C5079
L5001
P5001
C5704
C5702
C5701
D5701
CN5902
C5917
T5701
C5914
C5705
ZA5001
R5000
Q5502
Q5504
C5512
C5513
R5509
R5510
R5517
Q5503
C5514
C5715
Q5701
DZ5001
L5701
LB5701
C5718
C5712
D5702
C5805
IC5801
R5806
C5807
R5805
C5806
C5710
C5927
C5716
C5001
ZA5002
E5701
W5600
T5801
IC5901
D5904
C5913
H5903
C5916
C5901
W5621
D5905
W5624
W5623
W5622
C5902
C5903
IC5701
W5614
W5615
W5630
W5631
W5628
W5620
W5617
W5640
W5625
W5634
W5644
W5638
W5639
W5641
D5902
D5903
D5713
C5714
Q5704
C5930
W5635
D5803
D5901
W5642
W5645
W5643
C5929
C5713
J5711
W5618
W5619
D5710
D5711
D5802
C5803
W5610
D5704
D5705
D5706
W5608
W5611
R5804
W5612
W5609
W5607
W5613
E5702
W5633
W5636
R5001
W5601
W5604
W5637
W5646
W5647
FP5901
1A
C5707
W5648
C5977
W5626
CNP5904
W5651
K1
Q5928
R5971
R5972
R5973
Q5925
R5974
R5975
W5652
C5978
W5655
W5654
W5900
W5605
W5606
W5603
W5602
F1
250V 6.3A
CAUTION
RISK OF ELECTRIC SHOCK
AC VOLTAGE LINE.
PLEASE DO NOT TOUCH THIS P.C.B
HEATSINK
HEATSINK
HEATSINK
R5516
W5901
W1AB
W1AA
W5653
R5706
TH5701
SA-VK950EE
117
SA-VK950EE
118
21 Basic Troubleshooting Guide for Backend Module
21.1. Firmware and Key Download
Problems
Checking Points
Checking Components
1) Firmware downloading fails.
2) CPPM/CPRM key download fails.
2) CPPM/CPRM key download fails.
a) Check supply voltages on ICs pins.
b) Check oscillation frequency and level.
c) Check reset signal and power voltage rise time.
d) Check Flash ROM address and data bus.
e) Check SDRAM address and data bus, CLK and
other control signals waveform.
f) Check EEPROM CLK and data line.
* Compare the above with OK condition
Module.
b) Check oscillation frequency and level.
c) Check reset signal and power voltage rise time.
d) Check Flash ROM address and data bus.
e) Check SDRAM address and data bus, CLK and
other control signals waveform.
f) Check EEPROM CLK and data line.
* Compare the above with OK condition
Module.
IC8111, IC8651, IC8001, IC8051, IC8151
X8621, C8621, C8622, R8621, R8622
IC8601
IC8651
IC8051
IC8651
IC8051
IC8611
* Check for solder short and/or component
missing/damaged.
21.2. Initialisation and Playability
Problems
Checking Points
Checking Components
1) No DVD logo screen saver.
a) Check supply voltages (3.3V and 1.2V).
b) Check video signals especially Luminance, Y
signal.
c) Check SDRAM, EEPROM and Flash ROM
for solder short.
b) Check video signals especially Luminance, Y
signal.
c) Check SDRAM, EEPROM and Flash ROM
for solder short.
IC8111, IC8151
LB8301, R8321, R8322
IC8051, IC8611, IC8651
2) Picture black and white only.
a) Check C (Chroma) signal if using Composite
S-Video.
b) Check P
S-Video.
b) Check P
b
and P
r
signal if using Component.
LB8302
LB8304, LB8305
3) Distorted picture and abnormal
sound is heard during initialisation.
sound is heard during initialisation.
a) Check SDRAM address and data bus, CLK
and other control signals waveform.
b) Check video signals.
c) Check audio DAC circuitry.
* Compare the above with OK conditoin
Module.
and other control signals waveform.
b) Check video signals.
c) Check audio DAC circuitry.
* Compare the above with OK conditoin
Module.
IC8051
LB8301, R8321, R8322, LB8302, R8325, R8326
IC8421
* Check for solder short and/or component
missing/damaged.
4) No TOC/ Long TOC
a) Check motor driver circuitry (voltages).
b) Check laser drive circuitry (voltages and
current).
c) Check LSI connection to motor drive circuitry.
* Compare the above with OK condition
Module.
b) Check laser drive circuitry (voltages and
current).
c) Check LSI connection to motor drive circuitry.
* Compare the above with OK condition
Module.
IC8251
Q8550, Q8551, Q8552, Q8560, Q8561, Q8562
IC8001
* Check for solder short and/or component
missing/damaged.
5) Disc not spinning.
6) Traverse not moving.
7) Traverse and spindle abnormal
movement.
6) Traverse not moving.
7) Traverse and spindle abnormal
movement.
a) Check connection from Backend Module to
Traverse Unit.
b) Check motor driver circuitry on voltages and
control signals.
* Compare the above with OK condition
Module.
Traverse Unit.
b) Check motor driver circuitry on voltages and
control signals.
* Compare the above with OK condition
Module.
FP8251, FP8531, IC8251
M+9V=FP8101(PIN 5/7), IC8251(PIN21)
* Check for solder short and/or component damaged.
8) Cannot read disc but spindle is
spinning
- Cannot read CD
- Cannot read DVD
spinning
- Cannot read CD
- Cannot read DVD
a) Check laser drive circuitry (voltages and
current).
- Check CD laser drive.
- Check DVD laser drive.
* Check voltages and LD current and
compare with OK Module.
current).
- Check CD laser drive.
- Check DVD laser drive.
* Check voltages and LD current and
compare with OK Module.
Q8550, Q8551, Q8552, Q8560, Q8561, Q8562
Q8550, Q8560, Q8561, Q8562
Q8550, Q8551, Q8552, Q8560
Q8550, Q8551, Q8552, Q8560
* Check for solder short and/or component
missing/damaged.
9) Block noise during play.
a) Check SDRAM address and data bus signal.
* Compare the above with OK conditoin
Module.
* Compare the above with OK conditoin
Module.
IC8051
* Check for solder short and/or component damaged.
10) DVD Audio no audio output
a) CPPM key download NG, check test point for
CPPM key download.
b) Check EEPROM.
* Check test point damaged or broken
pattern.
CPPM key download.
b) Check EEPROM.
* Check test point damaged or broken
pattern.
IC8611
* Check for component damaged.
11) No audio
a) Check audio signal
IC8421(5.1 ch)
b) Check audio DAC control signals.
c) Check Zero Flag and A-Mute signal.
* Compare the above with OK condition
Module.
IC8421(5.1 ch)
b) Check audio DAC control signals.
c) Check Zero Flag and A-Mute signal.
* Compare the above with OK condition
Module.
(MIXL/MIXR/FL/FR) LB8421,LB8422,LB8425,LB8426
(SURL/SURR/CEN/SW) LB8427,LB8428,LB8429,LB8431
(IC8421) Pin 5,6,7 & 8
QR8420, LB8424
* Check for solder short and/or component
missing/damaged.
119
SA-VK950EE
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