DOWNLOAD Panasonic SA-VK950EE Service Manual ↓ Size: 28.98 MB | Pages: 127 in PDF or view online for FREE

Model
SA-VK950EE
Pages
127
Size
28.98 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / DVD STEREO SYSTEM
File
sa-vk950ee.pdf
Date
PREV: Panasonic SA-VK92DGCS / SA-VK92DGS Service Manual

Panasonic SA-VK950EE Service Manual ▷ View online

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
9
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
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
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.
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.
IC8111, IC8651, IC8001, IC8051, IC8151
X8621, C8621, C8622, R8621, R8622
IC8601
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.
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
b
and P
r
signal if using Component.
LB8302
LB8304, LB8305
3) Distorted picture and abnormal
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.
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.
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.
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.
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
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.
Q8550, Q8551, Q8552, Q8560, Q8561, Q8562
Q8550, Q8560, Q8561, Q8562
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.
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.
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.
(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
22 Illustration of ICs, Transistors and Diodes
AN7348S-E1 (24P)
C0ABBB000230 (8P)
C0CBCBD000018 (8P)
C0JBAB000011 (14P)
C3ABPG000145 (54P)
C0JBAR000326(16P)
C1BB00000086 (18p)
C0EBA0000029 (4P)
C9ZB00000461 (32P)
MA2J72800L
B
C
E
MN2DS0009VP (256P)
C1BB00001012 (80P)
C1BB00001098 (100P)
C2CBYY000269 (100P) 
C0HBB0000064 (64P)
C0DAAMH00012
2SB0621AHA
C1AA00000612
C0DBEHG00006
C0EBE0000455
C0JBAA000346
B1AAKD000014
B1AARC000003
B1ACKD000006
B1AAGC000007
B0ADCJ000020
1
1
5
Ca
A
Cathode
Anode
A
Ca
Cathode
Anode
B0EAKM000117
B1BACD000018
B1BCCD000019
B
C
E
B0BC5R600003
B0BC5R000009
B0BC7R500001
B0JCPD000025
Cathode
Ca
A
Anode
B1BACG000023
B1BCCG000002
B
C
E
B0ACCK000005
B1ACCF000094
B1GCCFGA0006
1
5
1
3
4
5
2
2SD1819A0L
B1ABCF000176
B1ABEB000002
B1ADCF000001
B1ADGB000008
B1GBCFJN0033
B1GBCFJJ0051
B1GDCFJJ0047
UNR521100L
UNR511V00L
B1ABCF000011
B1ADCE000012
B1GBCFLL0037
B1GDCFGA0018
Ca
Cathode
Anode
A
B0ACCE000003
MA2J11100L
Cathode
Anode
Ca
A
C1BA00000407
B
C
E
E
C
B
1
18
B3AEA0000083
B3AAA0000803
Ca
A
Cathode
Anode
XP0621400L
1
2
3
4
5
6
C0GBG0000048
1 4
1
2 8
1 5
7
2 1
2 2
8
C5HABZZ00125
1
5
3
1
4
8
5
C0AABB000125
C0ABBA000168
C0ABCB000052
C0FBBK000050
C0DABFC00002
C0DABYY00002
1
14
15
28
2SC3940ARA
Anode
Cathode
(NC)
B0ZAZ0000052
ERZV10V511CS
Anode
Cathode
A
Ca
B0BC02900004
Ca
Cathode
Anode
A
B0BC3R700004
B0BC4R0A0006
B0BC01600013
B0BC9R000008
B0BC01700015
B0BC8R100004
Cathode
Ca
A
Anode
1
2
3
1
3
4
5
7
8
2
Anode
Anode
Cathode
B0HBSM000043
B0FBAR000018
B0EAMM000057
B0JAME000114
B0HFRJ000012
B0BC3R400001
B0BC035A0007
+
~
~
-
Cathode
Anode
Ca
A
Cathode
Anode
Ca
A
E
C
B
C0CAAKG00013
3
1
1
CNB13030R2AU
RFKWMHA0H160 (48P)
A
Ca
Cathode
Anode
MA2C16500E
48
25
24
1
1
3
1
3
2
4
2
4
120
SA-VK950EE
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