Panasonic TH-42PX20U-P Service Manual page 159

H-BOARD TNPA2817(2/2)
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1
2
3
4
5
6
7
8
9
C4204
IC4201 0.01 C4208
0.015
C4205
M5243AFP09-600D
0.022 C4209
0.022
C4206
EQUALIZER C4201
0.1 C4210
16V
0.068[KB]
10
R4202 R4209
NP
91K 2200
R4201
R4203 R4210
4700
470 91K
C4207
R4204 R4211
1000P
2200 91K
9V
IC4202
TC74HC4066AF(EL)
SWITCH
R4214
10K
R4207
3300
R4208
Q4201
47K
2SD1819A0L
C4211 1
IC4203
C4212 3300p
NJW1147AM-TE1 C4213
16V 0.033
BBE VIVA
C4214 25V 4R7
C4215 0.1
C4216 1
C4217 0.1
C4218 1
C4219 1
SDA2 R4217 100
SCL2 R4218 100
IC4204
BA15218F-E2
R4212
VAO
10K
C4202
16V
10
R4206
1K
1[ZF]
R4205
10K
10
TH-42PX20U-P
H-BOARD (2 of 2) Schematic Diagram
10 11
30V
9V
IC4301
CXA2079Q
R4381 R4382 R4383
680 680 680
INPUT SELECT
C4369
0.01[ZF]
R4380
68
1%
Q4303 R4305 220
2SB1218A0L S1
R4384
470
C4301 1 R4306 220
C1
C4302 1 R4307 220
R1
C4303 1 R4308 220
Y1
C4304 1 R4309 220
L1
C4305 1 R4310 220
V1
GND
C4236 C4246 S2
0.015 0.01
1 20 C4306 1
IN1-1 IN1-2 C2
C4237 C4307 1
2 19 R2
NF1-1 NF1-2 C4247
0.022
0.022 C4308 1
3 18 Y2
IN2-1 IN2-2
C4238 C4309 1
4 17 L2
NF2-1 NF2-2 C4248
0.068[KB] 0.1 C4249 C4310 1
5 16 V2
IN3-1 IN3-2 16V
16V
6 15 10
NF3-1 NF3-2 R4241
R4234 NP
7 14
PFBIN-1 PFBIN-2 2200 91K
8 13
NFBIN-1 NFBIN-2
R4219 R4230 C4243 R4235 R4242 R4245
9 12 1000P 4700
4700 OUT1 OUT2 4700 91K 470
10 11
GND VCC
R4236 R4243
C4225 C4239
2200
10V 10V 91K
1[ZF] 100/16V
R4233
10K
L4201
10
C4240 C4242
Q4204
10V 10V
1 14
1[ZF] 100/16V 2SD1819A0L
1 EQ_L SWITCH
2 13
3 12
2 THROUGH_L
4 11 R4240
3300
4
5 10 AUX0 AUX1
EQ_R
R4238 Lo Lo
PROHIBIT
6 9
47K
Lo Hi
GEQ ON
7 3 8 Hi Lo
Through
THROUGH_R
Hi Hi
PROHIBIT
SWITCH
BBE_L
C4227
1 30 1 BBE_R
INa INb
C4228
2 29
BBE1a BBE1b
3300p
3 28 C4229
BBE2a BBE2b
0.033
4 27
BBEOUTa BBEOUTb
5 26
TONEINa TONEINb
6 25
TONE-Ha TONE-Hb C4230 25V 4.7
+
7 24 R4244
TONE-La TONE-Lb C4231 0.1
680
8 23
OUTa OUTb
9V
9 22 Q4205
AGC SR-FIL C4232 0.1
AUDIO_R
10 21 2SD1819A0L
SS-FIL VREFF C4233 1
11 20
CVB CTH C4234 1 R4247
R AMP
12 19 1K
CVA CTL C4235 1
13 18
SDA AUX0
R4246
14 17
SCL AUX1 680
15 16
GND Vcc
C4241
C4226 Q4206
10V AUDIO_L
0.01
100/16V
2SD1819A0L
L AMP
GND
R4248
1K
C4220
0.01[ZF] GND
8 1
VCC
R4226
18K
7 2 R4231
R4228
10K
R4220
3300
18K 6 3 NP
C4244
NP 5 4 R4227
GND 16V
4700
R4215 10
3300 R4221 R4232
GND
4700 C4223 10K
R4213
16V
10K
10
C4221
16V
10
R4225 C4224 C4245 R4239
C4203 C4222 R4223 1K 1 1 1K
1K
1[ZF]
10V 10V Q4203
R4224 R4229
R4216 Q4202 10K 47K
2SD1819A0L
47K
2SD1819A0L
VAO_MUTE
R4237
R4222
1K
1K
VAO MUTE
VAO MUTE
12 13
9V
NTSC2
C4315
C4312
16V
0.01
47/16V
C4370
16V 1
C4317
16V 47/16V
C4316 R4330
16V 1 82
+
NTSC_L
32 52
31 53
NTSC_R
30 54
V1IN=AV4
V2IN=AV3
29 55
NC TRAP1 R4331
V3IN=AV2
82 NTSC_VY1
28 V4IN=AV1 56
S-4 YOUT1
NC
V5IN=TV1 GND GND
27 NC 57 R4332
S2-4 ROUT1 VGND
TV =TV2
ADR VOUT1 82
26 58 NTSC_C1
C4 LOUT1 COUT1
25 S2-3 RTV 59 R4333 220 C4372 C4371 1 LTV1
RV4 LV5
S-3 TV
1
24 V4 LTV 60 R4334 220 VTV1
V5
Y4
23 61 R4335 220 C4373 1 RTV1
LV4 RV5
GND
22 62
R4336 220 C4374 VTV2
21 63
1
20 64
GND GND
ATSC_L
R4376 PT C4375 PT
ATSC_R
R4377 PT C4376 PT
C4318
GND ATSC_V
16V R4378 PT C4377 PT
1 GND
V3
C4319 1 L3
C4320 16V 1 Y3
C4321 1 R3
C4322 1 C3
S3
R4401
75 1%
R4402
75
1%
SD Y/C
IIC2
14 15
NTSC_MAIN
ATSC-YPbPr
IC4302
AN15852A-VT
AN15852
YPbPr SELECT
C4325 65
1
R4342 1K
NTSC_VY2
66
NTSC_C2
67 L2
SC
APD2
R4343 1K R2 PDD2
C4326 68
SY
1
AGND2
69
VGND5
CV/SY
70 L5
Lout1
71
R5
72
AGND5
73
SLV_ADD
DTV_Y1 C4327 1 R4344 1K 74
CV/SY
L6
DTV_PB1 C4328 1 R4345 1K 75
SC
R6
DTV_PR1 C4329 1 R4346 1K 76
SY AGND6
77 I_VCC
VGND6
R4340 1K SDA
DTV_L1 C4323
78
1
DTV_R1
79
C4324 R4341 1K
80
1
C4330
1000P[KB]
C4331
1000P[KB]
C4334
16V
L4301
0.1
10
C4332
16V
5V
0.1
C4333
6.3V
100/6.3V
DTV2
9V
5V
VAO_MUTE
AUDIO_L
SUB9V
TO
DG-BOARD
(DG1)
16
MAIN
C4351
0.1
TP4227 TP4226
9V
R4371
330
BBE_L
R4372
330
40 BBE_R
C4360 R4373
39
16V 10 + 0
SUB_Y
38
Pbout1
37 C4356 R4374
VGND8
Prout1 16V 0.1 0
SUB_PB
36
VGND7 Pbout2
SUB_PR
35
Prout2
Yout2
Rout1 R4375
34 C4357
VGND8
BIAS 16V 0.1 0
33
L2
32 L4302
R2
DCOUT 10
31
AVCC
Pbout3
30
Prout3 Yout3 C4358
C4359
16V
29 10V
AGND9 VGND9
1.0
100/16V
Lout3 28
Rout3
27
26
GND
25
DVI/HDMI
GND
Y_SD
BBE_R
GND
ATSC_V
GND
DVI_PB
GND
TH-42PX20U-P
H-BOARD (2 of 2) Schematic Diagram
17 18