Panasonic SA-PT550GCP Service Manual page 101

SCHEMATIC DIAGRAM - 9
:-B SIGNAL LINE
B
MAIN CIRCUIT
:+B SIGNAL LINE
DC_DET1
3
1 2
TU+9V
Q2908
B1ACKD000006
+5V POWER SUPPLY
DGND
DVD_D+5V
TO MAIN D2942
SECTION (3/4)
B0ACCK000005
D2941
DVD_ADAC+5V B0ACCK000005
R2984 Q2906
470
W2620
0
ADGND
DGND
D2939 B0ACCK000005
B0ACCK000005
DVD_A+5V
Q2910
Q2907
B1ABCF000176
R2982 Q2907
+5V POWER SUPPLY
470
VGND
AGND
L2908
G0A200D00002
DVD_2R7
Q2904
B13
DGND_1
-7V
+7V
SW+5V
Q2911
B1AAKD000012
+5V REGULATOR
AGND
SW+5V_GND
VOUT
R2996 3
4.7
RF+5V
5V_GND
MGND ERJ6GEY0R00V
M+9V
15 16 17
:MAIN SIGNAL LINE :DVD VIDEO SIGNAL LINE :AUX / MUSIC PORT / MIC SIGNAL LINE
Q2909 Q2922 Q2919
B1GBCFJN0033 B1GBCFJJ0051 B1ABCF000176
DC DETECT DC DETECT DC DETECT
Q2906
B1ABCF000176
+5V POWER SUPPLY
L2907
G0A220GA0026
Q2908
D2940
W2621
0
Q2910
B1ACKD000006
Q2921
R2934
C2969 +5V POWER SUPPLY
0.1 10K B1ADCF000001
DC DETECT
R2927 R2925
C2975
1.5 1.5
0.1
Q2904
R2975
B1BACG000023
15K
+2.7V REGULATOR
R2946 33 Q2921
D2912
B0BC3R400001
R2951
3.9
Q2903
R2929
150 B1BACD000018
+7V REGULATOR
Q2902
B1ADCF000001
-7V REGULATOR
IC2901
GND VIN C0DAGHG00002
+5V REGULATOR
2 1 R2997
1.5
D2950
18 19 20
:FM SIGNAL LINE
D2945
B0ACCK000005
D2946
B0BC7R500001
D2947
B0BC010A0007
D2909 D2908
MAZ82400HL B0EAMM000057
R2985
0
5
D2903
B0EAMM000057
6
7
8
D2906
Q2916
B0JAME000029
B1BACG000023
+9V REGULATOR
Q2916
R2939 1
R2974
91
R2972
22
+5.3V
D2937
B0BC4R600016
R2976 D2938
10K
B0BC5R000009
R2936
330
L2902
R2935
G0A101G00022
4.7K
R2999 R2921
0 3.3K
Q2901
R2954
B1BCCG000002
22
-7V REGULATOR
R2913
22
R2914
3.9K
3 2 1
E2900
L2903
R2930
G0A101G00022
+9V
L2905 R2923 R2906
G0A100HA0023
1.2K
21 22 23
101
VGND
TO MAIN
R2816
SECTION (2/4)
VOUT
R2813
CYOUT
T2900
R2812
G4D1A0000117
CROUT
SWITCHING
TRANSFORMER
4
R2809
3
Q2900
CBOUT
Q2900
B1BABK000001
2 C2183 R2165
PSAVE CONTROL
470P 10K
AGND
1
AUX-RCH
9
D2901
B0BC035A0007
D2920
B0BC035A0007
R2902 C2903
47
3900P
AUX-LCH
FP2900
0.4
SYNC
SYS6V
GNDE
IC2903
DC_DET2
C0DAAMH00012
SWITCHING REGULATOR
GND
+18V
5 4 3 2 1
R2055
1K
PCONT
L2911 L2909 AMBP
G0A200D00002 G0A200D00002
-13V
CHASSIS GND
IC2900
C0DAAYY00042
SWITCHING REGULATOR
5 4 3 2 1
4.7K
6.8K
1/4 2/4
3/4 4/4
SA-PT550GCP MAIN CIRCUIT
24 25 26
SA-PT550GCP
I
CHASSIS GND
JK2001
J
1
VIDEO OUT
L2805
75
J0JBC0000015
2
75 L2804
[Y]
3
J0JBC0000015
4 COMPONENT
L2803
VIDEO OUT
75 J0JBC0000015
[PR]
K
5
L2802
75
J0JBC0000015 [PB]
6
7
R2164
10K
L2101 [RCH]
8
J0JBC0000015
AUX
R2264
10K
L2201
[LCH]
L
9
J0JBC0000015
CN2004
1 SYNC
2 SYS6V
W2656
3 SYS6VGND
0
I
4 DC_DET
TO
5 -13V
SMPS CIRCUIT
6 GND (CN5802)
IN SCHEMATIC
7 GND
DIAGRAM - 14
M
8 +18V
9 +18V
10 PCONT
11 AMBP
N
O
P
27 28