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Panasonic Manuals
Home Theater System
SA-PT750PL
Service manual
Panasonic SA-PT750PL Service Manual page 105
Dvd home theater sound system
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SCHEMATIC DIAGRAM - 9
:-B SIGNAL LINE
B
MAIN CIRCUIT
:+B SIGNAL LINE
DC_DET1
3
1
2
C+9V
TU+9V
0.09A
0.6A
DGND
TO MAIN
DVD_D+5V
0.8A
SECTION (3/4)
DVD_ADAC+5V
0.2A
ADGND
DGND
DVD_A+5V
0.39A
VGND
AGND
B1BACG000023
L2908
DVD_2R7
0.6A
G0A200D00002
B13
DGND
-7V
0.22A
+7V
0.22A
SW+5V
0.02A
AGND
VOUT
3
RF+5V
0.25A
5V_GND
C+9V
0.6A
M+9V
0.6A
MGND
15
16
17
:DVD VIDEO SIGNAL LINE
:AUX SIGNAL LINE
:MAIN SIGNAL LINE
Q2922 - Q2924
Q2909
B1GBCFJJ0051
B1ABCF000176
DC DETECT
DC DETECT
L2912
L2907
G0A220GA0026
G0A101EA0017
L2913
G0A220GA0026
Q2921
B1ADCF000001
Q2904
DC DETECT
R2927
R2925
C2975
+2.7V REGULATOR
1.5
1.5
0.1
R2975
15K
R2946
33
Q2921
D2912
B0BC3R400001
W2578
0
Q2903
B1BACG000023
+7V REGULATOR
Q2902
B1ADCF000001
VOLTAGE CONTROL
L2904
IC2901
G0A100HA0023
C0DAGHG00002
GND
VIN
+5V REGULATOR
2
1
W2542
0
18
19
20
Q2919
B1ABCF000176
DC DETECT
D2945
B0ACCK000005
D2946
B0BC7R500001
D2947
B0BC010A0007
D2948
B0BC7R500001
D2909
D2908
MAZ82400HL
B0EAMM000057
5
D2903
B0EAMM000057
6
7
8
L2914
G0C220JA0055
D2906
B0JAME000029
+5.3V
R2976
10K
R2936
470
L2902
R2935
G0A101G00022
4.7K
R2921
390
Q2901
R2954
B1BCCG000002
47
-7V REGULATOR
R2913
47
R2914
3.9K
3 2
1
E2900
L2903
G0A101G00022
+9V
L2905
R2923
G0A100HA0023
1.2K
21
22
23
103
VGND
TO MAIN
R2816
SECTION (2/4)
VOUT
R2813
CYOUT
Q2900
R2812
T2900
B1BABK000001
G4D1A0000117
CROUT
PSAVE CONTROL
SWITCHING
TRANSFORMER
4
R2809
3
CBOUT
Q2900
2
AGND
1
AUX-RCH
FP2902
9
5A
R2164
R2264
R2902
C2903
10K
AUX-LCH
3900
47
SYNC
SYS6V
GNDE
IC2903
DC_DET2
C0DAAMH00012
SWITCHING REGULATOR
+18V
5
4
3
2
1
R2010
1K
PCONT
L2911
L2909
AMBP
G0A200D00002
G0A200D00002
-13V
WL_SUBW_LCH
WL_SUBW_RCH
IC2900
FX_DET1
C0DAAYY00042
FX_DO
SWITCHING REGULATOR
FX_DI
FX_CLK
AGND
5
4
3
2
1
RF+5V
R2930
5V_GND
4.7K
R2906
6.8K
1/4
2/4
3/4
4/4
24
25
26
SA-PT750PL
I
CHASSIS GND
JK2001
J
1
VIDEO OUT
75
L2805
2
J0JBC0000015
75
L2804
[Y]
3
J0JBC0000015
4
COMPONENT
L2803
VIDEO OUT
J0JBC0000015
75
[PR]
K
5
L2802
75
J0JBC0000015
[PB]
6
W2567
0
7
L2101
[RCH]
8
J0JBC0000015
AUX
10K
[LCH]
L
9
L2201
J0JBC0000015
CN2004
1
SYNC
2
SYS6V
W2566
3
SYS6VGND
0
4
DC_DET
G
TO
5
-13V
SMPS CIRCUIT
6
GND
(CN5802)
7
GND
IN SCHEMATIC
M
8
+18V
DIAGRAM - 13
9
+18V
10
PCONT
11
AMBP
CN2003
1
AGND
14
2
CH1_L_OUT
3
AGND
4
CH1_R_OUT
N
5
AGND
E
6
CH2_L_OUT
TO
WIRELESS ADAPTER
7
AGND
CIRCUIT (CN6300)
8
CH2_R_OUT
IN SCHEMATIC
9
5V
DIAGRAM - 16
10
5V_GND
11
WM_DET
12
MAINSET TX(SDO)
13
MAINSETRX(SDI)
14
SCL
1
O
SA-PT750PL MAIN CIRCUIT
P
27
28
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Table of Contents
Troubleshooting
Basic Troubleshooting Guide
121
Basic Troubleshooting Guide for HDMI AV output
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This manual is also suitable for:
Sc-pt750pl
Sb-pt750p
Sh-pt750pl
Sb-hw750p
Sb-hf750p
Sb-hc750p
...
Show all
Sb-hs750p
Sb-fx65tpp
Se-fx65p
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