JVC LT-42FX77 Service Manual page 40

DIGITAL PWB CIRCUIT DIAGRAM (5/17) SHEET 11
SHEET 16
EXT3DON
SHEET 21 MAIN_CCD
SUB_CCD1
BS_LOUT
BS_ROUT
SHEET 18
BS_YOUT
BS_COUT
ML
MR
MR_1
C6221
OPEN
ML_1
C6222
OPEN
BS_COUT_1
C6223
OPEN
BS_YOUT_1
C6224
OPEN
BS_ROUT_1
C6225
OPEN
BS_LOUT_1
C6226
OPEN
CN012
OPEN
OPEN
CN002
ANALOG PWB(2/6)
CN002
(SHEET 2)
GND
DIGITAL PWB ASS'Y (5/17)
SFL0D381A-H2 [LT-42FX77, LT-42FX77/B]
SFL0D381A-BK [LT-42FX77/BA]
SFL0D382A-H2 [LT-42FX77/S]
C6303
R6306
OPEN R6310
2.2K
R6311
R6307 R6309
OPEN
OPEN 0
C6302
Q6301
OPEN
PNP
R6308
OPEN
R6221
OPEN
LC6221
OPEN
R6222
OPEN
LC6222
OPEN
R6319 C6308
R6223
OPEN R6323
OPEN
2.2K
LC6223
OPEN
R6322 R6324
R6320
R6224 OPEN
OPEN 0
OPEN
C6307
LC6224 Q6303 OPEN
OPEN PNP
R6321
OPEN
R6225
R8781
OPEN
OPEN
LC6225
OPEN
GND
R6226
OPEN
LC6226
OPEN
GND
BS_5V
R6280
330
YMIN_2
R6201
YMIN
0
Q6201
OPEN
C6201 LC6201
R6281
OPEN OPEN OPEN
GND
R6202
BYMIN
0 BS_5V
C6202 LC6202
OPEN OPEN
R6236
R6203
330
RYMIN 0
R6235 100
C6203 LC6203
OPEN OPEN
YMIN_1
Q6203
C6236
R6204 0.1/16
SUB_VY 0 GND C6252
R8796
1
0
C6204 LC6204 BS_5V YMIN_4
OPEN OPEN
R6239 C6253
R8797
1
330 0
BYMIN_4
R6206
OPEN R6238 100
C6206 LC6206
BYMIN_1
OPEN OPEN
Q6204
C6237
C6254
0.1/16 R8798
1
GND 0
RYMIN_4
BS_5V
R6339
R6242
OPEN
330
R6241 100
RYMIN_1
Q6205
C6238
0.1/16
GND
BS_5V
R6282
330
SUB_VY_2
C6255
R8799
Q6202 1
0
R6207 PNP SUB_VY_4
R6283
0
100
C6207 LC6207
OPEN OPEN
GND
BS_5V
R6208
0
C6208 LC6208
R6245
OPEN OPEN
330
R6209
0
R6244 100
C6209 LC6209
OPEN OPEN Q6206
C6239
R6210
OPEN GND 0.1/16
C6210 LC6210
OPEN OPEN
R6211 OPEN
R6212 OPEN
R6213
OPEN
C6212 LC6212
OPEN OPEN
R6214
R6344 0
0
C6213 LC6213
OPEN OPEN
R6215
0
C6214 LC6214
OPEN OPEN
R6216
0
R6297 R6298
C6215 LC6215
DIN_DL_1 0 0
OPEN OPEN
R6217
DIN_DR_1
0
C6216 LC6216
OPEN
OPEN
GND
OPEN
SHEET 10
SHEET 16
SHEET 22
SHEET 15
(No.YA564<Rev.001>)2-27
R6314 IC6301
Q6302 0 R6318
OPEN
R6317
0
C6306
.1/16
GND
C6312
10/10
R6327 IC6302
Q6304
0 R6331
OPEN
GND
R6291
R6330 47K
0
C6311
.1/16
R6292 C6298
47k
OPEN
GND
GND
GND
ADA3V BS_5V ADA3V BS_5V
BS_5V
K6250
OPEN
C6250
10
C6251
0.1/16
IC6250 ADA3V BS_5V ADA3V BS_5V
R6332 R6333
OPEN OPEN
R6278
OPEN
R6279
OPEN
BS_5V
C6217
0.1/16
R6252
0 R6253
GND
10K Q6211
YMIN_5 R6254
YMIN_6
150 R6255
R6256 4.7k
0 R6257
10K
BYMIN_5 R6258 Q6212
BYMIN_6
150 R6259
R6260 4.7k
0 R6261
10K Q6213
R6262
RYMIN_5 RYMIN_6
ADA3V 150 R6263
R6264 4.7k
0 R6265
Q6250
R6340
NPN
10k
R6266
SUB_VY_6
R6267
D6301 220 4.7k
*4
C6249
Q6251 1
NPN
R6337
R6338
OPEN
R6335
0
GND
SUB_VY_5
R6343 OPEN
R6284 OPEN
R6347 0
R6285 OPEN
IC6303
C6235
OPEN
VCC3D STB3.3V
OPEN
R6342 0
GND
C6315
C6313 R6346 OPEN
OPEN
OPEN
GND GND
GND
C6314 R6345
OPEN OPEN
GND GND
SHEET 22
SHEET 15
SHEET 10
SHEET 15,16
2-28(No.YA564<Rev.001>)
YMIN_EAD
SHEET 10
BYMIN_EAD
RYMIN_EAD
SHEET 7,10,16,20
LB_POW
ADA3V
BS_5V L6266 L6265 IC6001
*5 *5
C6294 C6295
C6268
0.1/16
C6296 C6297
R6290 R6293 OPEN
10 10
OPEN
GND
K6271 R6230
*5 0
C6269 L6257
OPEN OPEN
ADY2G_IN
C6273
0.1/16
C6230
PWM_Y2G OPEN
CLPH_Y2G
ADY2G_INN
C6274
0.1/16
K6272 R6300
R6301 OPEN
OPEN
*5
R6231
ADC1B_INN
0
ADC1B_IN C6275 L6258
OPEN OPEN
C6279
0.1/16
ADC2R_INN
C6231
OPEN
PWM_C1B
CLPH_C1B
ADY1V_INN
C6280
0.1/16
R6302 R6303 OPEN
OPEN
C6218
0.1/16
R6232
ADC2R_IN 0
C6281 L6259
OPEN OPEN
GND
PWM_Y2G
CLPH_Y2G
C6285
ADY2G_IN
0.1/16
PWM_C1B
C6232
CLPH_C1B
PWM_C2R OPEN
ADC1B_IN
CLPH_C2R
PWM_C2R
C6286
0.1/16
CLPH_C2R K6274
*5
ADC2R_IN R6304
OPEN
PWM_Y1V
R6233
Q6214 C6301
0
ADY1V_IN 0.1/16
CLPH_Y1V
ADY1V_IN
R6305
GND GND OPEN C6291
C6289 0.1/16
K6268
0.1/16
OPEN
C6290 C6233
OPEN
PWM_Y1V OPEN
CLPH_Y1V
VCC3D
C6234
R6272
OPEN OPEN
GND
R6273
OPEN
GND
R6218 R6219 R6275
OPEN OPEN OPEN
R6276
GND OPEN
27M_CLK_A1
VCC3D
L6254 R6299 R6274
OPEN OPEN 22
27M_CLK_A1_0
X6250
C6292
OPEN
SUB CPU/
GND
A-D CONVERT / YC SEP./
SUB CPU/
GND CHROMA DEMOD./
A-D CONVERT / YC SEP./
FORMAT CONVERT/
CHROMA DEMOD./
Enhancer / NR
FORMAT CONVERT/
Enhancer / NR
IC6001
ggs20012001_0724_1/18_0.0