52
12.12. A-Board (8/22) Schematic Diagram
+
+
S
S
Thermal Pad
P
P
PWM_SQ_R-
PWM_SQ_L-
C2308
25V
1u
C2316
0.1u
50V
C2324
25V
1u
C2301
16V
0.1u
C2335
25V
0.1u
C2318
0.1u
50V
C2303
25V
10u
C2323
0.1u
50V
C2315
10u
25V
C2068
16V
0.01u
C2070
16V
0.01u
C2104
50V
10p
C2069
16V
0.01u
C2325
50V
1000p
C2347
50V
0.022u
C2321
0.1u
50V
C2343
50V
0.022u
C2340
50V
0.022u
C2322
10u
25V
C2345
50V
0.022u
C2342
50V
0.022u
C2334
50V
0.47u
C2338
25V
0.1u
C2302
16V
0.1u
C2057
10u
10V
C2306
25V
1u
C2336
25V
0.1u
C2055
10u
10V
C2311
10u
25V
C2346
50V
0.022u
C2355
50V
1000p
C2067
16V
0.01u
C2341
50V
0.022u
C2313
50V
1000p
C2344
50V
0.022u
C2304
25V
1u
C2337
50V
0.47u
C2320
25V
1u
C2307
25V
1u
C2073
25V
0.033u
C2351
50V
1000p
C2339
25V
0.1u
C2074
25V
0.033u
C2353
50V
1000p
C2314
25V
1u
C2349
50V
1000p
C2305
50V
1000p
C2317
25V
1u
C2319
10u
25V
C2108
10V
1u
C2107
10V
1u
C2110
16V
0.1u
C2072
6.3V
100u
C2071
6.3V
100u
D2014
B0ACCJ000048
A11
1
2
3
4
L2301
J0JHC0000045
L2302
G1C3R0ZA0156
L2303
G1C220MA0416
L2304
G1C220MA0416
L2305
G1C220MA0416
L2306
G1C220MA0416
ACHIP3.3V
SUB3.3V
SUB5V
S_15V
SUB3.3V
R2066
R2065
TP2304
TP2302
TP2303
TP2301
TP2008
PD_MUTEB
PA_LO1_R
SIF
AV_L
PA_LO2_L
AMP_MUTE
PD_NSHUTDOWN
PA_LO1_L
AV_R
PD_APWMSLN
PD_APWMSLP
PD_APWMSRN
PA_LO2_R
HP_MUTE_
PD_APWMSRP
PA_HP1_L1
PA_HP1_R1
PA_LIN1_LP
PA_LO1_L
SG-SOUND_SOS
PA_LO2_L
PA_LO2_R
HP_LOUT
PA_LIN1_RP
PA_SIFINN
PA_SIFINP
PA_LO1_R
HP_ROUT
PA_HP_MUTE
Q2255
DSC2001S0L
Q2252
DSA200100L
Q2109
DSA200100L
Q2101
DSA200100L
Q2301
DSA200100L
R2302
22
EXB28V220JX
R2310
2.2k
R2107
0
R2307
4.7k
R2318
3.3
10k
R2301
R2321
3.3
R2259
100
R2256
10k
R2104
1.2k
R2254
100
140k
1%
R2055
R2320
3.3
R2260
10k
R2264
100
R2308
220
R2258
100
R2257
1M
R2139
220
R2135
1k
R2110
22
R2121
680
R2101
3.3k
R2319
3.3
R2070
10k
R2263
10k
R2102
4.7k
R2255
47k
R2309
2.2k
R2306
47k
140k
1%
R2053
R2103
22
R2069
10k
C1AB00003230
IC2301
1
STBY
44
PVD1
2
MUTE
3
SOS
4
NC1
5
NC2
6
NC3
7
NC4
8
PWM_A1
9
PWM_B1
10 NC5
11 NC6
12 NC7
13 GND
14 PWM_B2
15 PWM_A2
16 NC8
17 NC9
18 NC10
19 NC11
20 NC12
21 NC13
22 NC14
23
PVD2
24
PVD2
25
OUT_CH2_P
26
OUT_CH2_P
27
BOOT_CH2_P
28
VDDA2
29
BOOT_CH2_N
30
OUT_CH2_N
31
OUT_CH2_N
32
PGND2
33
PGND2
34
PGND1
35
PGND1
36
OUT_CH1_N
37
OUT_CH1_N
38
BOOT_CH1_N
39
VDDA1
40
BOOT_CH1_P
41
OUT_CH1_P
42
OUT_CH1_P
43
PVD1
Q2253
B1AAFB000002
Q2254
B1AAFB000002
To SOS
MUTE
SOS
RESET
PWM_READY
OPERATE
OPERATE
<< Monitor L
TO Sheet Peaks-COMMON
>> MainHP L
<< TV R
to HeadPhone out L, R
<< TV L
<< Monitor R
>> MainHP R
TO Sheet TUNER
TO Sheet AVSW
R+
L+
R-
TO SPEAKER
L-
TV_L-OUT
TV_R-OUT
MON_R-OUT
MON_L-OUT
sLD-STMSBT0
MUTE
NORMAL
TO Sheet Analog-ASIC
MUTE
OPERATE
70
64
72
67
66
69
71
65
68
!
A-BOARD (8/22)
TO 6/22
TO 13/22
TO 12/22
TO 8,10,20/22
TO 8,10,20/22
TO 10/22
TO 20/22
TO 20/22
TO 20/22
TO 10,14/22
TO 14/22
TO 20/22
TO 20/22
AUDIO AMP
Summary of Contents for Viera TH-P50V20A
Page 2: ...2 TABLE OF CONTENTS PAGE PAGE ...
Page 19: ...19 6 4 No Picture ...
Page 36: ...36 ...
Page 38: ...38 11 3 Wiring 2 11 4 Wiring 3 ...
Page 39: ...39 11 5 Wiring 4 ...
Page 40: ...40 ...
Page 41: ...41 12 Schematic Diagram 12 1 Schematic Diagram Note ...
Page 80: ...80 A B C D E F G H I 1 2 3 4 5 6 P BOARD COMPONENT SIDE ETX2MM806MSL ...
Page 92: ...92 14 1 2 Exploded View 2 ...
Page 93: ...93 14 1 3 Packing 1 ...
Page 94: ...94 14 1 4 Packing 2 ...
Page 95: ...95 14 1 5 Mechanical Replacement Parts List ...
Page 98: ...98 14 2 Electrical Replacement Parts List 14 2 1 Replacement Parts List Notes ...