Panasonic TH-42PA20A Service Manual page 29

4.5. H-Board (1 of 2) Schematic Diagram
TO
K-BOARD
(K9)
H9
JS2227
0
A
B
H-BOARD (1/2)
!
TNPA2949AB(FOR TH-42PA20M/H/R)
TNPA2949AC(FOR TH-42PA20A)
TNPA2949AD(FOR TH-42PA20F)
C
AC_YSW
Y-SW
Y AC_Y
Y
G
PB AC_PB
PB
D
AC_PR
PR
PR
AV4
V
V
L AC_L
L
R-SW AC_RSW
R AC_R
R
G
Y-SW
Y
Y
G
PB
PB
PR
PR
AV2
V
V
L
L
R-SW
R
R
G
E C
AV1
Y
G AD_YSW
C Y
Y-G
C-G
G
V
V
L
L
R-SW AD_RSW
R
R
G
MONITOR OUT
V AE_MV
V
L AE_ML
L
AE_MR
R
R
G
JK3100A
<
TJB0A639
0
F
JS3100 JS3101 JS3102
JS3103 JS3104 JS3105
TH-42PA20A/F/M/H/R H-BORAD (1 of 2) Schematic Diagram
1 2
L2200
ELJPA470KF
R2203
1 2 3 4 5 6
10k
D2210 HP AMP
MAZ30360HL
R2221 R2220
100 100
Q2202 IC2200
R2200
2SD0601A0L
47k
SOUND_DEF
R2225 C2225 C2222 R2222 C2202 AN17880A-E1
0.1u 50V
2.2 0.1u 2.2
C2203 10u
50V 50V
1u
R2201 1 Ripple Filter
+
47k 16V
2
C2226 R2226 CAMP_SW
0.1u 2.2
50V
C2205
16V
3
L2220 VCC
L2222 100u
EXC3BB221H EXC3BB221H R2204
0
HP_R 4
OUT_2
HP_GND
5
CAMP_OUT
6
OUT_1
HP_L
R2205
0
7
OUT_GND
8
IN_1
R2259
4.7k
R2258
100
R2250
10k
C2272 C2273
Q2203
1u
1u R2253
10V 10V 47k 2SB0709A0L
C2271 R2254 C2274
C2270
R2251 33k 47p
16V 16V
50V
10k 0.1u
100u R2261
R2260
100 4.7k
GND
Q2204
R
R2257 2SB0709A0L
33k L
VCC
C2276
0.01u
C2275
50V C2008
50V
50V
47p
10u
AUDIOOUT_R
NP
AUDIOOUT_L
NP
R2256
C2007
47k
50V
IC2207
10u
C0ABBB000102
AMP
AV4
AB_YSW AB_YSW
AB_Y
AB_PB
AB_PR
AV2
JS3141
0 AB_V
AB_L
AB_RSW
AB_R
AD_C AD_C
AD_Y AD_Y
AD_YSW
AV1
D3105
AD_V
MAZ30910LL
AD_L
AD_R
AUDIO OUT
3 4
D2001
MA3X152K0L
8V IN
1 3
OUT
C2010 C2011 C2017
25V
16V COM 16V
0.1u 470u 2
0.1u
IC2001
C2201
AN77L08M-E1
50V
10u
AVR 8V
Bias input 16
15 NP
Bias Output
C2204
16V
14 10u
Standby
13
Mute C2207
25V
0.22u
12
Mute_T
11
Beep_IN
R2207
10k
R2206
10
IN_GND 10k
C2212
16V R2210
2.2u
100
9
IN_2
C2214
R2208
1000p
0
50V
R2211
100
C2215
R2209 C2213
L2207 1000p
0 16V
EXCELDR35V 50V
2.2u 8V
L2028
EXCELDR35V
R2286
10k R2006
R2001
4.7k
C2228 C2262 100
10V 1u
R2295 R2296
1u 10V
Q2003
47k 27k
2SB0709A0L
C2289 R2279 C2288
C2290
33k
R2245 16V 16V 47p
10k 100u 50V
0.1u
GND
R
R2002
R2007
100
L 4.7k
VCC Q2004
2SB0709A0L
C2286
0.01u
R2282 C2287
50V
50V
33k
47p
R2283 R2284
47k 27k
IC2206
C0ABBB000102
AMP
L3100
EXC3BB221H
AC_R AV4_R
C3113 R3117
560p
22k
50V
JS3112 0
AC_RSW
AC_L AV4_L
R3118
L3101 C3114
EXC3BB221H 560p 22k R3130
50V
1k
AC_YSW AV4_S
L3110 EXC3BB221H AV4_V C3170 R3174
AC_V
47u 33k
35V
JS3108 ERJ6GEY0R00V
AC_Y
JS3111 ERJ6GEY0R00V
AC_PB
R3108 R3175
75 33k
JS3114 ERJ6GEY0R00V
AC_PR 1%
R3104
75
1%
L3106 C3171
10u
AB_R EXC3BB221H AV2_R R3176
50V 33k
C3122 R3124
50V
22k
JS3107 560p
R3111 R3177
AB_RSW 0 75 33k
1%
AB_L AV2_L
C3123
R3125
50V
L3107 22k
560p R3143
EXC3BB221H
1k
AB_YSW AV2_S C3172
10u R3178
L3111 EXC3BB221H
AB_V AV2_V 50V 33k
JS3110
AB_Y ERJ6GEY0R00V
R3114 R3179
AB_PB JS3113 ERJ6GEY0R00V 75 33k
1%
AB_PR JS3115 ERJ6GEY0R00V
R3107
75
1%
AD_R AV1_R
L3102 R3119 C3115
C3117
47u R3132
EXC3BB221H 50V 22k
33k
560p 35V
AD_RSW JS3118 0
AD_L AV1_L
R3110 R3133
C3118 R3120 75 33k
1%
L3103 560p 22k
R3137
EXC3BB221H
50V 10k
AD_YSW AV1_S
AV1_V
AD_V L3109 EXC3BB221H
C3116
R3127
AD_Y JS3120 ERJ6GEY0R00V AV1_Y 10u
33k
50V
JS3121
AD_C ERJ6GEY0R00V AV1_C
R3113 R3145
AV1_S2
R3112
75 33k
75
R3116 C3139 1%
1%
C3112 1k 16V L3108
R3105 R3109
16V ELESN4R7JA
75 75 0.1u
1u
1%
1% C3140
SUB9V
R3121
R3126 25V C3132
75 470u 10u R3146
AE_MV 330
50V 33k
1% MONITOROUT
C3121
Q3100
R3106 25V R3147
100k 470u R3115 R3134
2SB0709A0L 330
75
R3148 33k
1%
820
AE_MR AUDIOOUT_R
C3119
R3122 Q3101
L3104 50V
100k
EXC3BB221H 2SD0601A0L
560p
R3151
10k
R3149
AE_ML 820 AUDIOOUT_L
C3120
L3105 R3123 Q3102
50V
100k
EXC3BB221H 560p 2SD0601A0L
R3150
10k
5 6
29
TH-42PA20A / TH-42PA20F / TH-42PA20H / TH-42PA20M / TH-42PA20R
L2029
EXCELDR35V
L3119
ELESN6R8KA
C3174 C3177
50V
16V
R3184 0.1u 10u
82
AV4_Y
Q3170
R3187
2SD0601A0L
470
C3175
16V
R3185
82 0.1u
AV4_PB
Q3171
R3188
2SD0601A0L
470
C3176
16V
R3186
82 0.1u
AV4_PR
Q3172
R3189
2SD0601A0L 470
C3108
R3220
16V
82 0.1u
AV2_Y
Q3173
R3275
2SD0601A0L
470
C3109
R3221 16V
82 0.1u
AV2_PB
Q3174
R3276
2SD0601A0L
470
C3126
R3222 16V
82 0.1u
AV2_PR
Q3175
R3277
2SD0601A0L
470
TH-42PA20A/F/M/H/R H-BORAD (1 of 2) Schematic Diagram
7 8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
9