Panasonic TH-42PA25U-P Service Manual page 308

H-BOARD TNPA2817(1/2)
A
B
JK3002
C
K2HA306A0024
PROG OUT
D
3
4
E
C3059
16V
470
PROG. OUT
F
TH-42PA20U
H-Board(1of2)Schematic Diagram
1 2
TO
TB-BOARD
(T21)
TV2 TVA2 GND GND GND GND SC2 SD2
TV2
(NON USE)
JK3001
K1U824A00002
VIDEOIN VIDEOIN
2 Y1 V1
Y2 V2
1
R3021
180K
R3022
R3016
180K
R3015 180K R3001
180K
180K
R3011 R3017
C3045
75 75
1500p
1% C3043 1% C3031
1500p
1500p
C3051
C3049
1500p 1500p
R3014
10K
VIDEO1
VIDEO2
3 4
TO
TO
TO
TB-BOARD
TA-BOARD
TA-BOARD
(T22)
(T12)
(T11)
+5V 30 9V GND GND GND AFC2 GND
TV1 NC MPXIN GND GND GND SC2 SD2
GND GND
AUDIO
IC4205
AN5849S-E1V
Max25mA
C4251 C4262
16V 0.1[KB] 16V 0.1[KB]
SAP DET NOISE DET
C4252 13 12 C4260
50V 10/50V 0.1[KB]
MPX IN SPEC DET
+ 14
C4250 11 C4254
R4249 0.47 16V 3.3
SPEC TIME
2200 PILOT DET
15
C4253 10
0.047[KB]
PLL SPEC FILTR
16 9
R4251 GND WB DET
17 8
100
SCL VCC
R4252 18 7 C4256
100 16V 10
SDA WB TIME
19 6 C4257
50V 4.7
PE OFFCAN2
TP4215 R4253
20 5 C4258
1K
LTV1 50V 2R2/50V
L OUT OFFCAN1
21 4
RTV1
R OUT
TP4216 22 3
R4250
1K
23 2
24 1
TP4224 TP4225
MTS
JK3003 JK3004
K2HA510A0002 K2HA510A0002
COMP1 IN COMP2 IN
DTV1
DTV2
T3001
G0B250D00001
Pr Pb Y Pr Pb Y
R3002
R3005 R3007
180K 180K
180K T3002
G0B250D00001
C3033 C3037
C3035
1500p 1500p
1500p
DTV1 DTV2
5 6
+5V 30 9V GND GND GND AFC1 FMTRAP
5V
P_OUT
C4261
0.022
C4255
1/6.3V
C4263
16V
100
TH-42PA20U H-Board(1of2)Schematic Diagram
7
1
2
3
4
5
6
7
8
9
10
8 9