A-Board (9/24) Schematic Diagram - Panasonic TX-P42G20E Service Manual

13.14. A-Board (9/24) Schematic Diagram

! A-BOARD (9/24) AUDIO AMP
TUNER
TO 13/24 R2101
R2121
3.3k
SIF
R2103
22
R2102 C2110
R2104
16V
4.7k
0.1u
AVSW
AV_L
TO 12/24
AV_R
PA_LO1_L_AVSW
PA_LO1_R_AVSW
TO 11/24
PA_LO2_L_AVSW
PA_LO2_R_AVSW
HP_LOUT
TO 11/24
HP_ROUT
Q2253
B1AAFB000002
Q2254
B1AAFB000002
73 74
Peaks-COMMON
SUB5V
sLD-STMSBT0
OPERATE SOS
R2135
680 1k
C2107
Q2109
10V
R2139 R2107
DSA200100L 220 0 1u
PA_SIFINP
Q2101 TO 21/24
R2110 C2104
50V C2108
22 DSA200100L
10V
1.2k 10p
1u
PA_SIFINN
TO 21/24
TO 21/24
C2055
10V R2053
10u
140k
PA_LIN1_LP
C2057
TO 21/24
10V R2055
10u
140k
PA_LIN1_RP
<< Monitor L
PA_LO1_L MON_L-OUT
<< Monitor R
PA_LO1_R MON_R-OUT
C2067 C2068
16V 16V
TO 21/24
0.01u 0.01u
<< TV L
PA_LO2_L TV_L-OUT
<< TV R
PA_LO2_R TV_R-OUT
C2069 C2070
16V 16V
0.01u 0.01u
C2071
6.3V
100u
R2065 >> MainHP L
PA_HP1_L1
S
R2066
>> MainHP R
PA_HP1_R1
S
C2074 C2073 C2072
R2070 R2069
25V 25V 6.3V
10k
10k 0.033u 0.033u 100u
TO 21/24
ACHIP3.3V
R2258
100
R2260
10k
R2264
100
Q2252 PA_HP_MUTE
R2263
R2259
DSA200100L
100 10k
Q2255 NORMAL
R2254
100 DSC2001S0L
MUTE
R2257 R2256 R2255
1M 10k
47k
Analog-ASIC
MUTE
HP_MUTE_ OPERATE
TO 11,13/24
75 76
TP2008
SUB3.3V
Q2301
R2308
TO 6/24
220 DSA200100L
To SOS
SG-SOUND_SOS
C2301
R2307 R2310
16V
0.1u 4.7k 2.2k
R2309
2.2k D2014
B0ACCJ000048
C2302
16V
0.1u
SUB3.3V
OPERATE
R2301
RESET
10k
PD_MUTEB
PD_NSHUTDOWN
PWM_READY
R2306
MUTE
47k
PWM_SQ_L+
PWM_SQ_L-
R2302
EXB28V220JX
PD_APWMSLP
PD_APWMSLN
PD_APWMSRP
PD_APWMSRN
PWM_SQ_R+
PWM_SQ_R-
AMP_MUTE
TO 13/24
77 78
56
L2302
G1C3R0ZA0156
C2308 C2307 C2306
L2301
25V 25V 25V
J0JHC0000045
1u 1u 1u
IC2301
C1AB00003230
AUDIO AMP
1 44
STBY
PVD1
C2313 C2314 C2315 C2311
2 MUTE 43 50V 25V 25V 25V R2318
PVD1 1000p 1u 10u 10u L2303 3.3
G1C220MA0416
3 SOS 42
OUT_CH1_P
C2340
C2316
4 41 C2335 50V
NC1 50V
OUT_CH1_P 25V 0.022u
0.1u
0.1u
5 NC2 40 C2341
BOOT_CH1_P 50V
6 39 C2334 0.022u
NC3
50V
VDDA1
0.47u
C2317
7 NC4 38
25V C2342
BOOT_CH1_N
1u 50V
8 37 C2318 0.022u
PWM_A1
50V
OUT_CH1_N L2304
0.1u
G1C220MA0416 C2343
9 PWM_B1 36
50V
OUT_CH1_N
C2336 0.022u
10 NC5 35 25V
0.1u
PGND1
R2319
11 NC6 34 3.3
PGND1
12 NC7 33
PGND2
13 GND 32
PGND2 L2305
G1C220MA0416 R2320
14 PWM_B2 31 3.3
OUT_CH2_N
C2321
15 PWM_A2 30
50V C2344
OUT_CH2_N
C2338 50V
0.1u
25V 0.022u
16 NC8 29
0.1u
BOOT_CH2_N
C2337
17 NC9 28 C2345
50V 50V
VDDA2
0.47u 0.022u
C2320
18 NC10 27
25V
BOOT_CH2_P
1u
19 NC11 26 C2323
50V L2306 C2346
OUT_CH2_P
0.1u 50V
G1C220MA0416
20 NC12 25 0.022u
OUT_CH2_P
C2339
21 NC13 24 25V C2347
50V
PVD2 0.1u
0.022u
22 NC14 23
PVD2
R2321
C2325 C2324 C2322 C2319
3.3
50V 25V 25V 25V
1000p 1u 10u 10u
79 80
S_15V
C2305 C2304 C2303
50V 25V 25V
1000p 1u 10u
C2349
50V
1000p
C2351 A11 TO SPEAKER
50V
1000p TP2301
1
L+
TP2302
2
L-
TP2303
3
R+
TP2304
C2353
4
50V R-
1000p
C2355
50V
1000p
81