Panasonic TH-37PA20AA Service Manual page 484

C2653
AVR 2.5V
1 5 2.5V
IC2670
3
BUFFER
11 2A1 2Y1 9
12 1Y4 1A4 8
17 2A4 2Y4 3
AB-LRCLK
15 2A3 2Y3 5
2A2 2Y2
13 7
21 17 6 5 4
HP
DAC
OUT
HEADPHONE
SURROUND
OURCE SOUND
PROCESSING
ELECT
LOUDSPEAKER
SP
SOUND
DAC
SCALE
OUT
PROCESSING
IC3200
AV SW
V
1 V
L
AV1
2 L
IN
R
R
4
SLOW
SW2-1
6
V
V
8
10 Y
AV2
C
12 C
IN
L
L
9
R
11 R
SLOW
13 SW2-2
V
22 V
Y
24
AV4
C
26 C
IN
L
23 L
R
R
25
SLOW
27 SW2-4
41 MONT V
3
63 MAINRF
R LOUT
38 L
MONT
R ROUT
OUT
40 R
62 TVL
TV
IN
64 TVR
43 L
AV4
T
OUT
45 R
Q3207
Q3206 AV MUTE
46
IC2652
3D SURROUND
&SOUND ENHANCEMENT
RESET
RESET
13 SDA 6
SDO0
SDO0
3 SCL 5
AB-SD1
AB-SD1
25
AB-LRCLK
28
AB-SCK
AB-SCK
29
IC2200
HP AMP
IN1
8 OUT1 4
DACA L IN2
OUT2
25 9 6
VOL
13
DACA R
24
Q2202
7
DACM L Q2004
28 5
L
R
DACM R
27 Q2003 3
+
1
-
IC2206
VAO
MAIN L
L 52
MAIN R
R 54
MAIN
OUT
Y Q3208
56
C 58 Q3209
Q3210
Y 44
SUB
OUT
C 47 Q3211
AV3 V
V
15
AV3 Y
Y 17
AV3 C
AV3
C
19
IN
AV3 L
L
16
AV3 R
R 18
AV3 SLOW
SW-3 21
SDA0
SDA 34
SCL0
SCL 32
DCOUT 36
IC2654
DUAL BUS SWITCH
6 SDA
5 SCL
H9 TO K9
HP L
4 HP L
HP R
HP R
6
H1 TO DG1
SOUND DEF
MAIN L
A11 MAIN L
MAIN R
MAIN R
B12
A7 SDA1
SCL1
A8
B8 SDA0
SCL0
B9
EC R
EC R
B34
EC G
A33 EC G
EC B
EC B
A34
EC FB
B33 EC FB
MAIN YV
MAIN Y/VBS
B13
MAIN C
MAIN C/Pb
B14
SUB Y
SUB Y/VBS
B15
SUB C
SUB C/Pb
B16
AV3 Y
AV3 Y
B31
AV3 V
B30 AV3 V
AV3 C
AV3 C
B29
AV3 S
B32 AV3 S
AV3 L
AV3 L
A27
AV3 R
B27 AV3 R
AV4C Y
B17
AV4 Y
AV4C PB
AV4 Pb
B18
AV4C PR
B19 AV4 Pr
AV MUTE
A22
SOUND DEF
B23
AV2 QLINK
AV2 QLINK
B21
AV4 QLINK
A21 AV4 QLINK
QLINK SEL
QLINK SEL
B22
AFT1
A23 AFT1
AGC1
AGC1
A32
T10
H10
AFT1
14 AFT1 14
AM
12 AM 12
MAIN RF
22 VIDEO 22
AGC1
23 RF AGC 23
MSP
MSP
24 24
2 SCL 2
4 SDA 4
TU
Tuner Board
TNR001
1st TUNER
16 AFT1
14 AM
18 VIDEO
AGC
1
17 RF AGC
MSP
21
S-CLOCK
4
5 S-DATA
TH-42PA20B/E
H and TU-Board Block Diagram