A-Board (10/26) Schematic Diagram - Panasonic TX-P42VT20E Service Manual

13.15. A-Board (10/26) Schematic Diagram

! A-BOARD (10/26)
SUB5V
TUNER R2101 R2121
3.3k 680 R2135
1k
TO 14/26
Q2109
SIF
DSA200100L
R2103
22
R2110
C2110 22
R2102 Q2101
16V
4.7k 0.1u
R2104 DSA200100L
1.2k
AVSW
AV_L
TO 13/26
AV_R
<< Monitor L
PA_LO1_L_2
TO 12/26 << Monitor R
PA_LO1_R_2
<< TV L
PA_LO2_L_2
TO 12/26 << TV R
PA_LO2_R_2
<< MainHP L
HP_LOUT
TO 12/26
HP_ROUT
to HeadPhone out L, R << MainHP R
C2074
R2070 R2069
25V
10k
10k 0.033u
Q2253
B1AAFB000002 R2258 Q2252
100
R2254
DSA200100L
Q2254
R2259
B1AAFB000002
100
82 83
AUDIO AMP
Peaks-COMMON
TO 7/26
sLD-STMSBT0 SG-SOUND_SOS
OPERATE SOS
C2107
R2139 10V
220 1u
PA_SIFINP
R2107
0
C2104
TO 23/26
50V
C2108
10p
10V
1u
PA_SIFINN
SUB3.3V
R2301
10k
PD_MUTEB
TO 23/26
PD_NSHUTDOWN
R2306
47k
PD_APWMSLP
PD_APWMSLN
PD_APWMSRP
TO 23/26
PD_APWMSRN
PD_APWMWLP
PD_APWMWLN
C2055
10V R2053
10u
140k
PA_LIN1_LP
C2057 PA_LIN1_RP
10V R2055
10u
140k
PA_LO1_L MON_L-OUT
PA_LO1_R MON_R-OUT
C2067
C2068
16V 16V
0.01u 0.01u
TO 23/26
PA_LO2_L TV_L-OUT
PA_LO2_R TV_R-OUT
C2069 C2070
16V 16V
0.01u 0.01u
C2071
6.3V
100u
R2065
PA_HP1_L1
S
PA_HP1_R1
S
C2072
C2073 R2066
25V 6.3V
0.033u 100u
100
ACHIP3.3V
NORMAL
R2263
10k
MUTE
R2260
10k
PA_HP_MUTE TO 23/26
R2264
100
Q2255
DSC2001S0L
Analog-ASIC
TO 12,14/26 TO 14/26
HP_MUTE_ AMP_MUTE
MUTE
OPERATE
84 85
TP2008 SUB3.3V
Q2301
R2308
220 DSA200100L
To SOS
R2310
C2301
R2307
16V 2.2k
4.7k
0.1u
R2309
2.2k D2014
B0ACCJ000048
C2302
16V
0.1u
OPERATE
RESET
PWM_READY
MUTE
PWM_SQ_L+
PWM_SQ_L-
R2302
PWM_SQ_R+
EXB28V220JX
PWM_SQ_R-
*D2417
B0ACCJ000048
*R2402
EXB28V220JX
86 87
65
L2302
G1C3R0ZA0156
L2301
C2308
J0JHC0000045
25V
1u
IC2301
C1AB00003230
AUDIO AMP
C2313 C2314 C2315
25V
50V 25V
1000p 1u 10u
1 44
STBY
PVD1
C2311
2 MUTE 43 25V
L2303
PVD1 10u
G1C220MA0416
3 SOS 42 R2318
OUT_CH1_P 3.3
4 41
NC1
OUT_CH1_P C2340
C2335
50V
C2316 25V
5 NC2 40 0.022u
50V 0.1u
BOOT_CH1_P
0.1u
C2334
6 39
NC3 C2341
VDDA1 50V
C2317 50V
0.47u
C2318 25V 0.022u
7 NC4 38
1u
BOOT_CH1_N 50V
C2342
0.1u
8 37 50V
PWM_A1
L2304 0.022u
OUT_CH1_N
G1C220MA0416
9 PWM_B1 36
C2343
OUT_CH1_N
C2336 50V
10 NC5 35 25V 0.022u
0.1u
PGND1
R2319
11 NC6 34
3.3
PGND1
12 NC7 33
PGND2
13 GND 32
L2305
PGND2
C2353
G1C220MA0416 R2320
50V
14 PWM_B2 31 3.3
1000p
OUT_CH2_N
15 PWM_A2 30 C2344
OUT_CH2_N 50V
C2338
0.022u
C2321 25V
16 NC8 29
50V 0.1u
BOOT_CH2_N C2345
0.1u
C2337 50V
17 NC9 28
0.022u
50V
VDDA2 C2320
0.47u
25V
18 NC10 27 C2323
1u
BOOT_CH2_P 50V
0.1u
19 NC11 26
L2306 C2346
OUT_CH2_P
G1C220MA0416 50V
20 NC12 25 0.022u
OUT_CH2_P
C2339
21 NC13 24 25V C2347
0.1u 50V
PVD2
0.022u
22 NC14 23
PVD2 R2321
C2319 3.3
25V
10u
C2325 C2324 C2322
50V 25V 25V
1000p 1u 10u
*L2401
J0JHC0000045
*IC2401
C1AB00003230
AUDIO AMP2
*C2413 *C2414 *C2415
50V 25V 25V
1000p 1u 10u
1 44
STBY
PVD1
*C2411
2 MUTE 43 25V
PVD1 10u *L2403
G1C220MA0416
3 42
SOS *R2418
OUT_CH1_P 3.3
4 NC1 41
*C2440
OUT_CH1_P
*C2435 50V
*C2416
5 40 25V 0.022u
NC2
50V 0.1u
BOOT_CH1_P
0.1u
*C2441
6 39 *C2434
NC3 50V
VDDA1 0.47u
*C2417 0.022u
*C2418 25V 50V
7 NC4 38
1u
BOOT_CH1_N 50V
*C2442
0.1u
8 37 50V
PWM_A1
OUT_CH1_N *L2404 0.022u
G1C220MA0416
*C2449
9 PWM_B1 36
*C2443 50V
OUT_CH1_N
*C2436 50V 1000p
10 NC5 35 25V 0.022u
0.1u
PGND1
*R2419
11 NC6 34 3.3
PGND1
12 NC7 33
PGND2 *C2451
50V
13 GND 32
PGND2 1000p
14 PWM_B2 31
OUT_CH2_N
15 PWM_A2 30
OUT_CH2_N
*C2421
16 NC8 29
50V
BOOT_CH2_N
0.1u
17 NC9 28
VDDA2
*C2420
*C2423 25V
18 NC10 27
50V 1u
BOOT_CH2_P
0.1u
19 NC11 26
OUT_CH2_P
20 NC12 25
OUT_CH2_P
21 NC13 24
PVD2
22 NC14 23
PVD2
*C2424
25V
1u
88 89
S_15V
C2303
25V
10u
C2307 C2306 C2305 C2304
25V 25V 50V 25V
1u 1u 1000p 1u
C2349
50V
1000p A11 TO SPEAKER
TP2301
1
L+
TP2302
2
L-
TP2303
3
R+
TP2304
C2351
4
50V R-
1000p
C2355
50V
1000p
*A12 TO WOOFER
TP2401
1
Woofer+
TP2402
2
Woofer-
90