Panasonic TC-20LB30 Service Manual page 47

A-BOARD TNPH0580 (1/5)
A
C3003
10V
1u
AM_C1
R3007
75
AM_S2
C3001
10V C3004
1u
6.3V
10u
AM_Y1
AV_IN1 C R3008
75
Y
R3005
C Y C-G 10k
AM_S1
Y-G
SW C3013
D3026
MAZ81400ML 50V C3005
G 0.01u
6.3V
10u AM_V1
V-SW
V
R3009
B V
75
V-G C3006
10V
L
1u AM_L1
L
L-G
R3010
R-SW
180k
C3007
R
10V
R
1u
AM_R1
R-G
R3011
AV_IN2 180k
C
C3008
Y
10V
1u
C Y C-G
Y-G
SW
R3012
G
75
V-SW
V
V C3002
V-G 10V
1u C3009
L
L 6.3V
10u
L-G
R-SW
R
R R3013
R-G 75
R3006
10k
JK3001
K1U826A00002 D3027
MAZ81400ML
VIDEO
C3010
C 6.3V
10u
R3014
75
C3011
10V
1u
R3015
180k
C3012
10V
1u
R3016
180k
R3091
10k
C3076
50V
0.1u
C3015
10V
D
L 1u
C3016
R3017 10V
WHITE 1u
R 180k
R3018
180k
RED
R3023
JK3004 1k
K2HA204A0038
COMPONENT C3019
6.3V
10u
R3020
R3092
75 C3017
0
Y-SW 10V
1u
Y
Y
Y-G
R3093
R3021
0
PB
PB 75 C3018
PB-G R3094 10V
1u
0
PR
PR
PR-G
R3022
75
JK3002A
K2HA307A0008
COMPONENT
E
F
TC-20LB30
A-Board (1 of 5) Schematic Diagram
1 2
R3037
220
AM_S2
C3077
C3078
50V 50V C3082
1000p 1000p 50V
1000p
AG_C1
AG_S2
C3020
10V R079
JPEG_C 1u 220 17
4.4
18
4.5
C3021
R080
19
JPEG_Y 6.3V 10u 220 0.8 SY-2
AG_Y1
SY-3
20 L-3
AB_TV1L C3024 10V 1u 4.5
R3032 1k
L-4 CV-3
21
AB_TV1R R3029 1k 4.4
C3022 10V 1u
R-4 R-4
22
4.4
C3103 R3033 AGC AGC
23
AB_TV1V 220
6.3V 10u 1.7
CV-4
AG_S1 24
AE_SW 4.4
C3014 DDET-1
AE_Y 25
R3024 220 0
50V
Y-1
0.01u AE_D1L 26
R3025 1k 4.3
L-5
AE_PB 27
R3026 220 4.4
U-1 DDET-2
AE_D1R 28
AG_V1 R3027 1k 4.5
L-6
R-5
29
AE_PR R3028 220 4.4 U-2
30
AE_LINE3 4.4
31
0.2
AG_L1 32
C3028 C3029 C3030 C3032 4.3
50V 50V 50V
50V
1000p
1000p 1000p 1000p
C3033
R3057
AG_R1 16V
220k
10u
C3085
C3037
50V
50V
1000p
1000p
C3036 C3038
50V 50V
1000p 1000p
AG_S2
AE_D1L
AE_D1R
AE_SW
AE_Y
AE_PB
AE_PR
3
R_CHS
L_CHS
R3051
220
C3046 C3049
50V
50V
1000p 1000p
C3048
C3050
50V
50V
1000p L_CH
1000p
C3081 SUB9V
IC3001
16V
2.2u
R_CH
AN15857A
L3001
ELJPA330KF
AV SW
R3101
0
64
4.5
63
0
R3052
62
S2-3 4.5 22 AA_SDA1_5
SDA
CV-1 61
4.7
R3053
MUTE YOUT
60
4.6 22 AA_SCL1_5
SCL
59
4.7
CVOUT-2
58
4.6
VCC
57 C3052
9.0 C3051
SCOUT-1 16V 16V C3112
56
4.4 47u 0.1u 6.3V
R3062
GND
55 100 10u
0
CVOUT-1
54
TRE-R 4.3
DCOUT
TRE-L 53
0.1
R3054
BASS-R SYOUT
52
4.6 0 R_CH
51
4.5
R3055
50
4.5 0 L_CH
49
4.3
AA_SCL5_5
R1130
0
AA_SCL1_5
C3047
50V
8200p
AA_SDA5_5
C3044
50V R1131
8200p AA_SDA1_5 0
R3102
0
R3049
1k
C3043
C3045
10V 10V
4.7u 4.7u
R3103
0
DC_OUT
R060
0
C056
16V
0.1u
IC1011
C0JBAS000099
R061
10k
SWITCHING
TV_R 2.1 5.0
1 8
VCC
AG_R1 4.4 0.1
2 7
0.1
4.4
3 6
0 2.2
4 5
GND
AG_L1
4 5
R2325
22
AA_SCL5_5
AA_SDA5_5
R2322
22
MAZ80620ML
MAIN9V
C2321
C2320
16V 50V
47u 0.01u
R2320
Lch_IN
5.6k
R2323
24k
R2321
RcH_IN
5.6k
R2324
24k
MAIN9V
MAIN9V
R3072 R3084
R3064
270k 1k 220 R3087
1k
8.5
R3076
0 7.9
Q3006
7.9 2SA207700L
R3070
100 2.5
Q3001 3.6
4.3
2SC24800VL
R3077
1.9
750 3.6 Q3008
R3065
150k 2SA207700L
R3073
510 0
TO
A1
TA-BOARD
GND 0
1 (TA1)
1.5
AGC 2
C051
0 16V
GND 3
2.2u R057
L 2.1 0 AB_TV1L
4
0
GND 5
R058
2.1 0 AB_TV1R
R 6
0
GND 7
SCL1 4.8 AA_SCL5_5
8
4.7 AA_SDA5_5
SDA1 9
GND
9
0
AGC_CONT
8
0
GND
7
0
MAIN5V
6
5.0
GND
5
0
30V
4
30.6
GND
3
0
AB_TV1V
TV1_V
2
2.6
C053 D051
GND
50V
MAZ81000HL
1
0 4.7u
C055 D052
A2
TO
16V MAZ81000ML
0.1u
TA-BOARD
D053
U/V TUNER
(TA2) MAZ81000ML
R052
0
R059 TV_L
0
6 7
7.7KHz
R2338
68k R2342
R2334
R2332 68k
R2346
56 56
150k
C2335 C2337
50V
50V
330p 330p C2339 C2347
C2343
50V C2345
D2320 D2321 C2330 50V
R2337 50V 50V
R2327 330p 330p
MAZ80620ML 10V 82k 4700p 4700p
33k
4.7u
R2341
R2345
82k
56k
IC2320
C1BB00000800
SOUND CTRL
C2324
R2344
10u
NP 56k
R2328
4.7k
C2322
C2344 C2346
50V R2340
50V
C2327 50V
1800p 100k
50V 4700p 4700p
R2336
5600p
100k
C2325 C2340 C935
10u 16V
16V
NP C2336 C2338 0.018u 0.018u
16V 16V
C2323 R2347
0.018u 0.018u
150k
50V
1800p
R2339
R2343
47k
47k
R3111
0
BT30V
TC-20LB30
A-Board (1 of 5) Schematic Diagram
8 9
1
2
3
4
5
6
7
8
9
10