Panasonic SB-PM08 - Signal Selector and Buffer Amplifier Schematics; Signal Selector Circuit Details; Buffer Amplifier Circuit Details

To DVD
MODULE(1)
CIRCUIT(FP3501)
on SCHEMATIC
DIAGRAM - 11
To DVD
MODULE(1)
CIRCUIT(FP4201)
on SCHEMATIC
DIAGRAM - 11
26
2
1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
ECHO LATCH
ECHO CLK
ECHO DAT
VREF
-
MIC SW
HP SW
WIDE1 WIDE2
DCLK
DSTAT
DCMD
VREF
-
NC
18dB ECLK
LFE MUTE
MUTE B
A LATCH
PLL DI/ A DATA
PLL CLK/ A CLK
SSS DET
PLL CE
PLL DO/ ST
SD
LINE IUT MUTE
+B(15V)
To SYSTEM CONTROL CIRCUIT(CN103B) on SCHEMATIC DIAGRAM - 14
G
IC102
M5228FPE1
BUFFER AMP
IC103
M5218AFPE3
BUFFER AMP
FL
A.GND
FR
A.GND
SL
A.GND
SR
A.GND
CNT
A.GND
SW
A.GND
LT
A.GND
RT
D.GND
ZFLAG
A MUTE
D.GND
OPT
D.GND
WIDE1
WIDE2
CMD
STAT
CLK
B
B
VGND
S
- Y
VGND
S - C
VGND
VIDEO
VGND
Y
VGND
C
VGND
C
VGND
CR
VGND
1
2632 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 252423222120
2
1
3
4
5
6
7
8
9
10
11
15
12
13
14
891011121314
7654321
Vcc
Vss
1234
5 6 7 8
SCHEMATIC DIAGRAM - 16
UCDGFE VWX Yn mj i hg d
E
F
E
F
A
B
D
C
A
B
C
D
E
F
A
B
C
D
E
F
G
Q
R
S
Q108
KRC102STA
SWITCHING
R140
100
A
R138
22K
D102
1SS355TE17
D103
1SS355TE17
C138
50V1
R126
22K
B
Q111
DTA143EKT146
MUTING CONT.
T
Q110
KRC102STA
MUTING CONT.
A
B
C
D
C114
25V10
R143
100K
R151
10K
C135
470P
R150
22K
C137
47P
R153
10K
R160
1K
R169
100K
R165
1K
R161
1K
R162
1K
C118
47P
R133
22K
R129
10K
R131
10K
R121
100K
C113
25V10
C121
470P
R128
10K
R124
10K
R120
100K
C112
25V10
C125
0.1
R149
22K
R152
10K
C136
47P
C134
470P
R147
10K
R142
100K
C110
25V10
R157
1K
R167
100K
R164
1K
R158
1K
R159
1K
R168
100K
R170
100K
Q112
Q113
Q115
Q114
Q112-117
2SC2712GRT5T
MUTING
C123
47P
R134
22K
R136
10K
C124
470P
R127
10K
C116
25V10
R123
100K
R146
1K
R172
100K
Q117
R163
1K
R166
1K
R145
1K
Q116
R171
100K
C119
0.1
C127
47P
R135
22K
R137
47K
C122
470P
R130
10K
R122
100K
C115
25V10
CN101
CN102
R154
1K
a
CN103A
+B(5V)
C120
470P
C128
0.1
C129
0.1
C403
1000P
R132
22K
C117
47P
IHG AD
R156
15K
:NEGATIVE VOLTAGE LINE
:POSITIVE VOLTAGE LINE
:AUDIO SIGNAL LINE
:VIDEO SIGNAL LINE
:SURROUND SP. DRIVE SIGNAL LINE
:CENTER SP. DRIVE SIGNAL LINE
:SUB WOOFER SIGNAL LINE
5.2V
0V 0V 7.7V 0V 0V
0V 0V 0V 0V - 7.7V
7.7V
- 7.7V
0V
0V
0.7V
0.7V
( - 0.5V)
(
- 0.5V)
0V
0V
0.7V
0.7V
(
- 0.5V)
( - 0.5V)
0V
0V
0.7V
0.7V
(
- 0.5V)
( - 0.5V)7.7V
0V
- 7.7V 0V
0V 0V
(
- 0.5V)
1.2V
0V
(5.1V)
0V
(5.1V)
1.9V
(5.2V)
1.8V
(0V)
2.2V (0V)
0V(4.1V)
5.2V
5.2V