21Pin Schematic Diagram - Sharp LC-20AD5E-BK Service Manual

A B
8
7
FROM/TO TUNER
TU_VIDEO_OUT
FROM/TO POWER I/O
D_TUNER_CVBS
6
R4209
75
FCM1608KF-601T02
R4217
75
5
4
W837
3
W852
GND GND
VIDEO IN VIDEO IN
TUNER OUT MONITOR OUT
GND GND
GND GND
21-Y IN FB
21-R IN 21-C IN
GND GND
GND GND
NC NC
21-G IN
2
NC NC
GND GND
FOR VCR FOR VCR
21-B IN
L IN L IN
GND GND
GND
GND
L OUT L OUT
R IN R IN
R OUT R OUT
DECORDER/PERITEL
J4206
1
MRC-021V-27_PC
A B
H-1
C

21PIN SCHEMATIC DIAGRAM

L4214
47uHNLV25
3 2 1
4 5 6
C4216
35V 10 V-S-NP
C4222
16V 10
NSEV
L4213
10uHNLV25
B4203
C4217
16V 470 TZV
8.8
R4241
C4239
BUFFER 4.5
47 16V 10
Q4203 0
NSEV
KTA1504S_Y_RTK
W864
L4215
1.5uHNLV25 L4216
1.5uHNLV25 L4218
1.5uHNLV25
L4207 R4248
22uHNLV25 1K
L4202 R4220
L4206 R4249
22uHNLV25 100
MUTE SW R4222
22uHNLV25 1K
Q4204
100 MUTE SW 0
5.1
KTC3875S_Y_RTK
Q4208
L4203
KTC3875S_Y_RTK
0
22uHNLV25
0
R4261
5.1
10K
0
R4210
75 L4217
10uHNLV25
B4204
R4215 C4218
FCM1608KF-601T02
75
16V 470 TZV
8.8
R4240
BUFFER C4238
Q4201
4.5
47 16V 10 NSEV
KTA1504S_Y_RTK
0
W850
D4210
R4247
UDZS12B
R4239 18K
8.2K
L4212 R4250
22uHNLV25
1K
L4204
L4211 R4251
22uHNLV25
22uHNLV25 1K
MUTE SW
MUTE SW 0
5.1
Q4205
Q4210
L4205
KTC3875S_Y_RTK
KTC3875S_Y_RTK
0
22uHNLV25 0
R4264
5.1
10K
0
C
D E
(MAIN PCB)
L4221
47uHNLV25
BUFFER
Q4216
KTC3875S_Y_RTK
7
8.9
R4279
W881
2.1
100
1.5
L4233
1
47uHNLV25
SCART1_V_IN
P.CON+9V
AUDIO_SCART1/2_Lch_SW
DTUNER_H IC4206 MM1501XNRE
D4303
C4384
UDZS8.2B
SCART2_V_IN
H
2.2 B
BUFFER
C4385
SCART1_V_IN
L
SCART1_Y_IN
D4304
2.2 B
UDZS8.2B
SCART1_R/C1_IN
SCART1_G_IN
SCART1_B_IN
SCART_A_SW
SCART1_SW
C4380
SCART2_R/C2_IN
2.2 B
D4216
C4265
UDZS12B
SCART1_R/C1_IN
2.2 B
SC1_A_IN_L
C4377
SCART2_G_IN
2.2 B D4217
SC1_A_OUT_L
L4219 UDZS12B
P.CON+5V
SC1_A_IN_R
SC1_A_OUT_R 47uHNLV25
R4267
D4218
10K
C4281
UDZS12B
SCART1_G_IN
2.2 B
C4376
SCART2_B_IN
2.2 B D4219
SCART2_V_IN UDZS12B
MON_OUT
L4223
P.CON+9V
L4224
47uHNLV25
SCART2_G_IN
1.5uHNLV25
NLV25T
SCART2_FB
SCART2_R/C2_IN
SCART2_SW
SC2_A_IN_L
EXT_MUTE
L4232
SCART2_B_IN C4274
SC1_A_IN_L
1.5uHNLV25
1 B
NLV25T
C4275
SC2_A_IN_R
SC2_A_IN_L
1 B
SC1_A_IN_R
R4223
SC2_A_OUT_L
100 SC2_A_IN_R
R4224 100 SC2_A_OUT_R
GND
R4268
10K
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
F G
SW_CVBS[TU/D_TU]
SW
Q4217
KRA103SRTK
5.1 5.0
2.9
2.9
W890
LEVEL SHIFT EXT_MUTE-H
Q4218
2.0
KRC102SRTK 0
L4225
P.CON+9V
10uHNLV25
6dB AMP
Q4214
KTA1504S_Y_RTK
7.8
7.3
6dB AMP 7.3
VCC 3.8
C4363
Q4224 SC2_CVBS_OUT
KTC3875S_Y_RTK
2.3
10V 33
R4202 1.7
V-S-NP
470
MON_OUT
SW_SCART_CVBS/Y
DTUNER/YUV SW
IC4204 NJM2584AM(TE1)
3.3 3.2
IN1B
IN1A
0 0
GND1 NC
NC
FROM/TO SUB MICON/RS-232C
2.5 2
3.2
SW_SCART_R/C
IN2B OUT1
5.1
0
V+ GND2
2.5 3
3.3
CTL OUT2 SW_SCART_G
FROM/TO AV JACK/SWITCH
3.2 1.8 4
SW_SCART_B
IN2A OUT3
0
GND3 NC
NC
2.6 2.6
C4381
SCART1_B_IN
IN3B IN3A
2.2 B
5
SW_A_L [SC1/SC2]
SCART_A_SW
6
SW_A_R
3 2 1
[SC1/SC2]
3 2 1
4 5 6
C4282
4 5 6
1 B
C4280
1 B
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
FROM/TO POWER
AT+5V
P.CON+9V
P.CON+5V
GND
7
6
FROM/TO SCALER
SCART1_Y_IN
EXT_MUTE-H
SW_A_R
[SC1/SC2]
SW_A_L [SC1/SC2]
SC2_CVBS_OUT
SW_SCART_G
SW_SCART_B
SW_SCART_R/C
SW_SCART_CVBS/Y
SW_CVBS[TU/D_TU]
5
SCART2_V_IN
SCART2_B_IN
SCART2_FB
SC1_A_OUT_L
SC1_A_OUT_R
SC2_A_OUT_L
SC2_A_OUT_R
4
SCART_A_SW
SCART1_SW
SCART2_SW
DTUNER_H
EXT_MUTE
3
CAUTION: DIGITAL TRANSISTOR
2
CAUTION: DIGITAL TRANSISTOR
1
PCBF40
CMF112
H
H-2