DOWNLOAD Panasonic SA-PT250EE Service Manual ↓ Size: 5.57 MB | Pages: 126 in PDF or view online for FREE

Model
SA-PT250EE
Pages
126
Size
5.57 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / DVD HOME THEATER SOUND SYSTEM
File
sa-pt250ee.pdf
Date
PREV: Panasonic SA-PT250E / SA-PT250EG Service Manual

Panasonic SA-PT250EE Service Manual ▷ View online

20.5. SMPS P.C.B.
0526A-2
0526A-2
1
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
G
H
10
1
12
13
H
SMPS P.C.B. (REPX0569A)    
SA-PT250EE 
SMPS P.C.B.
CAUTION
RISK OF ELECTRIC SHOCK
AC VOLTAGE LINE.
PLEASE DO NOT TOUCH THIS P.C.B
A
CA
NC
A
CA
A
A
CA
A
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
PRI
SEC
10
7
6
1
2
3
4
5
9
8
C5700
PbF
W5813
W5811
W5832
W5831
W5830
W5812
W5003
W5820
W5825
W5718
W5709
R5733
K5711
W5824
W5822
W5816
W5821
W5810
D5802
D5801
W5723
W5722
W5715
W5802
W5803
W5719
W5717
W5721
W5724
W5712
W5713
W5714
W5716
W5720
R5801
R5800
CN5802
C5831
C5832
R5832
R5834
W5002
C5823
W5001
Q5899
Q5898
C5824
CN5801
W5004
C5899
D5896
T5751
(BACKUP TRANSFORMER)
D5897
R5892
R5897 C5897
R5896
W5708
R5891
R5893
R5895
R5894
C5898
C5805
W5818
W5705
C5808
C5817
IC5801
C5816
R5815
C5810
R5803
D5807
D5806
C5825
R5812
R5863
R5862
R5861
C5869
R5864
R5860
W5006
R5816
R5811
R5813
C5812
C5815
Q5802
Q5861 Q5860
Q5862
QR5801
R5802
R5814
R5804
R5806
C5818
R5805
W5012
W5706
W5707
C5813
ZJ5801
D5803
QR5810
D5804
C5896
C5800
C5826
HEATSINK
HEATSINK
C5821
C5819
C5822
C5820
R5795
R5798
C5790
R5787
R5797
R5796
R5724
R5705
R5704
C5794
C5795
C5796
W5011
D5797
R5890
PC5799
TH5860
R5810
R5817
R5808
R5807
R5809
D5805
D5731
R5730
PC5720
PC5701
D5725
R5729
R5728
R5720
R5750
HEATSINK
R5721
C5720
R5722
C5721
R5731
C5726
R5732
C5722
D5727
C5723
W5000
C5725
R5706
R5703
(MAIN TRANSFORMER)
R5702
C5713
D5702
Q5720
D5729
D5724
R5725
D5726
D5728
Q5722
Q5721
D5722
D5723 C5728
R5723
W5710
ZJ5803
R5726
IC5701
C5727
C5730
C5712
T5701
C5703
GRY
WHT
D5701
C5798
W5828
W5833
W5829
W5827
C5791
R5786
D5793
W5826
D5798
C5797
D5730
PC5702
IC5799
C5724
D5732
D5721
B
C
E
1+
2~
3~
4-
W5007
W5010
W5009
1
1
3
4
5
6
7
8
2
2
3
4
5
6
7
8
9
10
11
1
4
5
8
3
2
1
1
2
3
4
5
6
7
1
2
3
1
2
3
4
1
2
3
4
1
2
3
1
2
3
4
1
2
3
4
1
2
4
5
6
7
8
11
12
13
14
15
16
17
18
9
SA-PT250EE
101
20.6. Mic, AC-Inlet, Scart, & Tray Loading P.C.B.
1
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
G
H
10
1
12
13
K
TRAY LOADING P.C.B. (REP4238A)    
SA-PT250EE 
MIC/AC-INLET/SCART/TRAY LOADING P.C.B.
J
SCART P.C.B. (REPX0591F)    
I
AC-INLET P.C.B. (REPX0569A)    
D
MIC P.C.B. (REPX0591F)    
0526A-2
PbF 2462A-1
2462A-1
0540A-1
0540A-1
0540A-1
0540A-1
0526A-2
+
-
M
PbF
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
PbF
B
C
E
B
C
E
B
C
E
PbF
S902
(OPEN SW)
S901
(PLAY SW)
REF NO.316
C984
IC904
CS901
CN1001
W1005
W1006
W1001
D1001
D1002
C1007
JK1001
AV
C1015
C1031
C1016
C1022
C1021
C1023
C1012
IC1101
Q1002
Q1003
Q1200
Q1100
C1024
C1014
W1003
W1008
W1002
W1027
W1004
W1009
W101
1
W1010
W1033
R1013
R1008
R1010
IC1
1
02
1
3
4
6
Q1006
1
3
4
6
W1031
R1017
C1018
C1017
C1019
L1004
C1026 L1002
C1027
C1028
R1015
L1005
C1029
R1014
C1011
L1001
C1009
D1010
C1002
C1008
C1006
Q1008
Q1007
Q1004
Q1005
W1029
R1011
K1001
R1100
R1200
W1022
W1021
R1
101
R1201
C1033
W1020
C1200
R1
102
C1
100
R1
103
R1202
R1004
C1035
R1019
L1008
L1007
C1036
C1034
R1104
C1025
R1204
C1010
R1203
W1028
W1025
R1012
R1020
W1023
C1005
C1004
C1030
L1003
R1016
W1032
R1009
R1007
R1006
R1018
C1001
W1007
MIC 2
MIC 1
MIC VOLUME
VR7001
IC7000
H7000
JK7001
JK7002
W7003
W7002
IC7100
Q7101 Q7100
Q7102
C71
13
R71
10
W7006
L7202
R71
16
L7303
C7121
L7101
R7007
C7007
R7003
C7003
R7005
C7004
R7004
R71
19
C71
19
C7120
C7123
R7122
R7120
C7002
R7002
L7004
C7005
C701
1
C7008
C7006
R7006
R701
1
R7010
C7012
C7115
C7111
D7100
C7104
R7101
C7106
R7109
C7105
C7102
R7102
C7108
R7104
R7105
R7100
R7112
R7107
W7007
R7001
L7003
R7009
C7009
C7010
C7122
IC7200
R7008
L7001
L7002
R7103
L7005
C7109
C71
12
R7123
C7107
C7101
C7103
R71
14
R71
13
C7124
R7106
C71
10
W7001
AC IN
230V  50HZ
WHT
GRY
ZA5701
W5780
W5781
R5701
DZ5701
P5701
W5782
W5783
F1
ZA5702
L5701
C5701
W5737
L5702
TH5701
250V  T5AH
ZJ5702
C5706
C5707
L5703
1
2
3
4
5
6
7
8
9
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
19
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
32
1
16
17
1
2
2
3
3
4
4
5
5
6
1
1
1
2
3
1
4
4
7
7
8
9
8
8
5
5
8
16
9
8
1
2
3
4
5
1
7
8
1
2
3
4
1
2
3
4
1
2
3
1
2
3
4
SA-PT250EE
102
21 Basic Troubleshooting Guide
21.1. Basic Troubleshooting Guide for Traverse Unit (DVD Module P.C.B)
Problems 
 
Checking Points
 
Checking Components
 
a) Check SDRAM address, 
data bus, CLK and other 
control signals waveform
IC8051  
b) Check video signals
LB8301, R8321, R8322, 
LB8302, R8325, R8326
1) Distorted picture or 
abnormal sound is head 
during the initialization
c) Check audio DAC circuitry
* Compare the above with 
OK condition DVD 
module P.C.B.
 
IC8421  
 
*Check for solder short 
and/or component 
missing/damaged
a) Check motor driver 
circuitry (+5V)
IC8251 Pin 8, 21
b) Check laser drive 
circuitry (Voltages & 
current)  
Q8551, Q8552, Q8561, 
Q8562
2) No TOC / Long TOC
c) Check LSI IC connection 
to motor drive circuitry 
 
*Compare the above with 
OK condition DVD 
Module P.C.B.  
IC8001 Pin 66, 67
* Check for solder short 
and/or component 
missing/damaged
a) Check connection from 
DVD Module to Traverse 
unit  
FP8251  
3) Disc not spinning
 
4) Traverse not moving
 
5) Traverse and spindle 
abnormal movement  
b) Check motor driver 
circuitry on the voltages and 
control signals  
*Compare the above with 
OK condition DVD 
Module P.C.B  
IC8251  
 *Check for solder short 
and/or component damaged
 
6) Cannot read the disc but 
spindle motor is spinning
 
 
- Cannot read CD/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 condition DVD
Module P.C.B.  
Q8551, Q8552, LB8531 
(For DVD Laser Drive 
current)  
Q8561, Q8562, LB8561 
(For CD Laser Drive 
current)  
7) Block Noise during  play 
 
a) Check SDRAM address 
and data bus signal  
IC8051
8) Jitter out of specification
9) Cannot read data from USB
 
 
 
 
a) Check LD current
b) Check OPU 
a) Check USB connector & FFC
b) Check LSI O/P
c) Check IC supply (+5V)
(Change to other unit and
 confirmed operating
 condition) 
OPU Unit (Traverse unit), 
FPC connection
FP9001
IC8001 Pin 144, 146
IC9005 Pin 2, 3
103
SA-PT250EE
22 Overall Block Diagram for PT250
22.1. SC-PT250 Simplified Block
DV5
SC-PT250 SIMPLIFIED BLOCK
DL2S
LOADING
T
U
N
E
R
WIRELESS
MODULE
POWER
SUPPL
Y
BLK
PCONT/DCDET1/
(FX_DET1/FX_DO/
FX_DI/FX_CLK)
(RDS_DET/TUN_DO/
TUN_SD/TUN_DI/
TUN_CLK)
(TRA
Y_OPEN/
TRA
Y_CLOSE/
TRA
Y_CCW/
TRA
Y_CW)
DCDET2
IC2001
MICRO-P
IC
(ASP_DA
T/ASP_CLK)
IC2101
ASP
 IC
(ACS/ACS_MUTE)
IC6106
MPOR
T
 AMP
IC
IC2102
HP
 AMP
IC
MUTING
MUTING
MUTE_S_C/
MUTE_F_SW
IC5000  
IC5300
IC5400
CLK
GENERA
T
O
R
IC5500/IC5501
FHOP
D-AMP
 BLK
OSC
IC6901
FL
 Driver IC
FL_IC_IN
FL_IC_CLK
FL_IC_STB
IC2003
EEPROM
IC2802
Swicth IC
(RGB_H)
(VIDEO_
MUTE/
SCAR
T_
MUTE)
IC1
102
Swicth IC
IC
YC_H
IC1
101
SCAR
T
 IC
IC2801
VIDEO IC
IC2751
Level Proctection
OSC
(C/Y/CR/CB/PY)
VMUTE
(DVD_MUTE/DVD_ST
A
T
/
DVD_CMD/DVD_CLK)
(VOUT/CBOUT/CROUT/CYOUT)
JK2001
JK1001
CB/CR/Y
COMPOSITE
SCAR
T
TERMINAL
FL6901
P1~P17
G1~G10
JK5001
TO
SPEAKERS
JK6801
TO
HEADPHONE
JK6802
FROM
MUSIC
POR
T
{
IC7100
ECHO IC
(ECHO_L
VL1/
ECHO_L
VL2/
ECHO_MUTE)
JK7001/JK7002
FROM
MIC
MIC AMP
IC
IC7000/IC7200
SA-PT250EE
104
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