Sharp LC-32A40L Service Manual page 37

A B
8
FROM POWER
AT+3.3V
AT+5V
P.CON+9V
GND
P.CON+5V
STANDBY_LED
7
FROM AV JACK
YUV1_A_IN_L
YUV1_A_IN_R
YUV2_A_IN_L
YUV2_A_IN_R
S_SW_1
S_SW_2
S1_Y_IN
S1_C_IN
S2_Y_IN
S2_C_IN
AV1_IN
AV2_IN
S2_C_IN
AV1_A_IN_L
AV1_A_IN_R
6 S2_Y_IN
S_SW_2
YUV2_A_IN_L
YUV2_A_IN_R
TUNER_VIDEO
FROM/TO SWITCH/AMP
REMOCON_IN
STANDBY_LED
C4232
25V 10 KA
5
S_SW_1
C4228
C4216
YUV1_A_IN_R 470P CH
1 B
C4220
C4205
1 B
YUV1_A_IN_L
C4227
AV2_IN 470P CH
4
C4217 1
B
47P CH
C4208
S1_C_IN
47P CH
R4401
C4225
220 1/4W
1 B
C4218
AV1_A_IN_R
C4207
1 B
C4221
S1_Y_IN 470P CH
C4456
1 B
C4224
AV1_A_IN_L 47P CH
3 C4206
1 B
C4222
470P CH
AV1_IN
1 B
STANDBY_LED
C4223
REMOCON_IN
47P CH
CD4202
CU256001
FROM/TO OPERATION/REMOCON
CP4202 (CP2201)
A2001WV2-5P
2
5 P.ON LED
4 STANDBY LED
3 AT+5V
2 GND
1 REMOCON IN
CAUTION: DIGITAL TRANSISTOR
1
A B
H-1
C
AV SWITCH2 SCHEMATIC DIAGRAM
C4242
25V 100 YK
YUV2_A_IN_L
4.7
4.5
C4201 C4238
NC
1 B 470P CH
4.5
Vref
4.7
S2_Y_IN
NC
YUV2_A_IN_R
4.7 4.6
C4202 C4239
TUNER_V
1 B 470P CH
4.5 4.7
S2_C_IN
NC
0 0
S_SW_1
S_SW_2
5.4 3.5
NC SDA
7.5 3.5
YUV1_A_IN_R
SCL
4.7 0
NC GND
7.5 4.7
C4243
YUV1_A_IN_L
D4201 UDZS12B
0.01 B
5.4 7.5
AV2_IN SW_A_R
0 5.7
C4203
NC
0.01 B
0 4.5
SW_A_L
D4202 UDZS12B
5.4 5.7
S1_C_IN SW_CVBS
6dB
7.5 4.5
C4246
AV1_A_IN_R
BIAS
D4203 UDZS12B
16V 22 KA
5.4 4.5
S1_Y_IN SW_Y
6dB
7.5 9.0
+ C4247
AV1_A_IN_L
Vcc
D4204 UDZS12B
0.01 B
5.4 5.3
C4240
AV1_IN SW_C
6dB
1 B
0 5.0
D_L1_Vin D_SW_1
NC
AV SW IC
IC4201
AN15853B-E1
R4402
4.9 4.9
330 1/4W SW
Q4231
0
KRA103SRTK
0
4.9 SW
Q4233
KRC102SRTK
0
GND
CAUTION: DIGITAL TRANSISTOR NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
C
D E
(AV PCB)
C4267
1 B
C4415
47P CH
C4416
47P CH
C4250
1 B
D4208
UDZS12B
C4251
1 B
D4210
UDZS12B
R4219
SDA
100
R4220
SCL
100
L4207_1
47uH
0405
L4206_1
47uH 0405
R4212
3.9K 1/4W
R4209
3.9K 1/4W
R4257 L4204
2.1
390 33uH
C4292
BUFFER
Q4205
10P CH
KTC3875S_Y_RTK 8.9
R4223
W802
2.1
1K
1.5
8.9 BUFFER
Q4203
2.4
KTC3875S_Y_RTK
1.8
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
F G
LEVEL SHIFT
Q4210
LEVEL SHIFT KTK5132E
Q4208
8
5.0 3.3
KTK5132E
9
5.0 3.3
3.3
3.3
8.9
1.5 BUFFER
Q4206
KTC3875S_Y_RTK
10
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
F G
H
8
7
FROM TUNER
TUNER_VIDEO
SCL
SDA
6
FROM/TO STEREO
SCL
SDA
SW_AUDIO_R[JACK]
SW_AUDIO_L[JACK]
STEREO_RESET
SW_AUDIO_L[PC]
SW_AUDIO_R[PC]
FROM/TO SCALER
5
CP4203 (CP803)
00_6232_029_006_800+
NC DVD/AV3_SW 29
NC DTUNER_H 28
NC DTV_MUTE_L 27
W852
GND/INV_DET 26 CD4203_1
2H0T1801
NC DTUNER_RX 25
GND 24
NC DTUNER_TX 23
GND 22
NC DTUNER_RESET_L 21
GND 20
4
SW_AUDIO_R[PC]
SW_AUDIO_R(PC) 19
GND 18
SW_AUDIO_L[PC]
SW_AUDIO_L(PC) 17
NC SC2_AUDIO_OUT-H 16
STEREO_RESET
STEREO_RESET 15
NC SCART3_SW 14
NC SCART_AUDIO_SW 13
12
SDA1
SCL1 11
GND 10
NC DTUNER_POWER 9
GND 8
3
NC DTUNER_SD_H 7
GND 6
SWITCH_CVBS 5
GND 4
SWITCH_VIDEO_Y 3
GND 2
SWITCH_VIDEO_C 1
2
PCBD20
CMF091
1
H
H-2