JVC LT-26A80SU Service Manual page 32

MAIN PWB (DC-DC) CIRCUIT DIAGRAM (3/3) SHEET 3
SHEET 1,2
SHEET 1 SHEET 1
CN100A
*
R7153
OPEN
R7152
0
OPEN
R7151
R7154
OPEN
0
GND GND
CN101A
*
POWER
PWB ASS'Y
C9702 OPEN
CN900A
C9701 BT32
OPEN C9703
(SHEET 4) OPEN
C9704 24V
OPEN
POWER
STB5V
STB3.3V
PWB ASS'Y
AU+12V
CN900F
(SHEET 4)
GND
C9705
OPEN
CN100F
GND C9105
GND
R9223
*
D9221
OPEN
R9221
*
K9401
CBW
K9151
CBW
C9151
1/10
R9102
GND
IC9151
C9106
C9101
1/10
GND
C9152
C9154 R9151
IC9101 10/16
470p OPEN
C9153
.33/10
GND
C9102 C9104
R9101
10/16 470p
OPEN
C9103
.33/10
GND
C9221
OPEN
R9222
100k C9206
.0033
R9202
IC9201 R9208
GND 5.6k
18k
C9209
.1/16 C9205
.0022
GND
K9201 GND L9201
C9207
GND
CBW OPEN
D9204
D9202
R9201 R9204 R9206
CBW 2.2M 6.8k
C9203
22/16
C9201
C9208
3.3
.01 GND C9204 Q9201
C9202 R9203 R9207
22/16 1.8k NPN
OPEN D9201 47k
R9205
10k C9210
GND
1/50
GND GND
D9206
D9321
OPEN
GND
R9321
4.7k
R9322 C9321
OPEN
100k
C9306
C9305 0.01 K9302
GND C9309 100p CBW
.1/16
IC9301
C9307
R9302 OPEN C9310
10k *
K9301
L9301
CBW
GND
GND GND
C9302 R9301
C9301 3.3 CBW
R9304 D9303
OPEN
* R9306
*
C9303 R9303 6.8k
* *
GND C9308 GND
.01 C9304
R9305
GND *
10k
R9307
D9301 D9302
1.8k
GND
GND
R9423
*
D9421
*
R9421 IC9451
*
*
R9422
R9452 C9421
100k OPEN
*
C9405
220p
C9451
GND
C9406 *
GND K9451
2200p
* GND
GND
C9409 IC9401
R9402 C9452 C9453 R9451
OPEN
10k * * *
GND
GND
K9162 CBW
GND
R9401
68
GND K9161 CBW
C9408 L9401
.01
C9161
R9403
1/10
27k R9404
3.3M
R9410
D9401 D9402 GND
C9454 C9401 R9405
10/25 10k IC9161
10/25
C9403 D9403
GND
C9404
GND
C9162
C9164
10/16 470p
C9163
.33/10
GND
STB3.3V
C3001 C3002 C3003
OPEN OPEN OPEN
C3016 C3017 C3018
OPEN OPEN OPEN
VCC3D
C3029 C3030 C3031
OPEN OPEN OPEN
C3042 C3043 C3044
OPEN OPEN OPEN
5V
C3081 C3082 C3083
OPEN OPEN OPEN
C3092 C3093 C3094
OPEN OPEN OPEN
1.8F
STB5V
C3114 C3115 C3104 C3105
OPEN OPEN OPEN OPEN
1.8D
GND
8V
C3068 C3069 C3070 C3071
OPEN OPEN OPEN OPEN
GND
5V_B
C3054 C3055 C3056 C3057
OPEN OPEN OPEN OPEN
GND
AU+12V 14V
C3117
C3116 C3130
OPEN
OPEN OPEN
5V
GND
GND
12V
K9202
CBW
C3024 C3025 C3026 C3027
OPEN OPEN OPEN OPEN
GND
R9209
22k D9203
K9203
* LCD5V
GND
8V
IC9501
C9502
C9501 33/25
33/25
9V
GND
IC9511
R9308
18k
D9304
C9512
33/25
C9511
33/25
Q9301
NPN
GND
IC9521
*
R9523
*
GND
R9524
*
R9522 R9521 GND
* *
C9521
C9522
*
*
GND GND
VCC3D
VCC1.8D
R9161
OPEN
(No.YA509)2-11 2-12(No.YA509)
MAIN PWB ASS'Y(3/3) [DC-DC]
SFT-1003A-U2 [LT-26A80SU,LT-26A80ZU]
SFT-1001A-U2 [LT-26DA8BJ,LT-26DA8SJ,LT-26DT8ZJ]
SFT-1008A-U2 [LT-26DA8SU,LT-26DA8ZU]
SFT-1004A-U2 [LT-32A80SU,LT-32A80ZU]
SFT-1002A-U2 [LT-32DA8SJ,LT-32DT8ZJ,LT-32DA8BJ]
SFT-1010A-U2 [LT-32DA8SU,LT-32DA8ZU]
C3004 C3005 C3006 C3007 C3008 C3009 C3010 C3011 C3012 C3013 C3014 C3015
OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN
C3019 C3020 C3021 C3022 C3023 C3126 C3139 C3140 C3141 C3142 C3143 C3144
OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN
GND
C3032 C3033 C3034 C3035 C3036 C3037 C3038 C3039 C3040 C3041
OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN O PEN
C3045 C3046 C3047 C3048 C3049 C3050 C3051 C3052 C3053 C3133 C3134
OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN
GND
CN100A
C3084 C3085 C3086 C3087 C3088 C3089 C3090 C3091
OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN
CN101A
C3095 C3096 C3097 C3098 C3099 C3100 C3101 C3102 C3103
OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN
CN10UD
GND
K9203
C3106 C3107 C3108 C3109 C3110 C3111 C3112 C3113 C3135 C3136 R9221
OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN
R9223
D9303
9V
R9303
R9304
C3128 C3072 C3073 C3074 C3075 C3076 C3077 C3078 C3079 C3080 C3131
OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN
C9303
3.3V_D4
C9304
VCC1.8D UK3.3V
C9310
C3058 C3059 C3060 C3061 C3062 C3063 C3064 C3065 C3127 C3125
OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN
IC9451
LCD5V 1.8F 24V
D9421
C3118 C3119 C3120 C3121 C3122 C3124 C3132 C3123 C3066 C3067 C3129 C3137 C3138
K9451
OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN
R9421
R9423
R9451
C3028
R9452
OPEN
C9451
C9452
C9453
IC9521
R9521
R9522
R9523
R9524
R9525
R9526
C9521
C9522
R9525
*
R9526
*
GND CN10UD
*
DIGITAL TUNER UNIT
[DA8/DT8 SERIES ONLY]
GND
C9601
GND
OPEN
OPEN OPEN
OPEN OPEN OPEN OPEN OPEN OPEN
OPEN OPEN OPEN OPEN
OPEN OPEN OPEN OPEN
OPEN 4.7K OPEN 4.7K OPEN 4.7K OPEN 4.7K
0 OPEN 0 OPEN 0 OPEN 0 OPEN
150K 150K 150K 150K 47K 47K 47K 47K
680K 680K 680K 680K 2.2M 2.2M 2.2M 2.2M
OPEN OPEN OPEN OPEN
OPEN OPEN OPEN OPEN
OPEN OPEN OPEN OPEN
OPEN 4.7K OPEN 4.7K OPEN 4.7K OPEN 4.7K
0 OPEN 0 OPEN 0 OPEN 0 OPEN
OPEN OPEN OPEN OPEN
1K 1K
1K OPEN 1K OPEN OPEN OPEN
OPEN OPEN OPEN OPEN
OPEN OPEN OPEN OPEN
OPEN OPEN OPEN OPEN
OPEN OPEN OPEN OPEN
OPEN OPEN OPEN OPEN
OPEN OPEN OPEN OPEN
4.7K OPEN 4.7K OPEN 4.7K OPEN 4.7K OPEN
100K OPEN 100K OPEN 100K OPEN 100K OPEN
22k OPEN 22k OPEN 22k OPEN 22k OPEN
10K OPEN 10K OPEN 10K OPEN 10K OPEN
OPEN OPEN OPEN OPEN
OPEN OPEN OPEN OPEN
ggs10002001a004_0206_4/4_0.0