Read Sharp LC-20SD4E (serv.man5) Service Manual online
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
B4201
FCM1608CF-600T06
B4208
FCM1608KF-601T02
B4204
FCM1608KF-601T02
B4203
MMZ1608R102CT
B4202
MMZ1608R102CT
B4209
FCM1608CF-600T06
CAUTION: DIGITAL TRANSISTOR
CP4204
00_6232_030_006_800+
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
3
30
4
5
6
7
8
9
IC4204
NJM2584AM(TE1)
SCART1/DTUNER RGB SW
1
10
11
12
13
14
15
16
2
3
4
5
6
7
8
9
Q4214
KRA103SRTK
KRA103SRTK
SW
Q4223
KRA103SRTK
SW
J4204
RGB-32-01
SCART1
1
10
11
12
13
14
15
16
17
18
19
22
0
21
3
4
5
6
7
8
9
C4282
470
10V
YK
:SINCE THESE PARTS MARKED BY
CAUTION
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARE
J4206
S4-25SZ
1
2
3
4
5
6
IC4206
MM1506XNRE
TUNER OUT CVBS SW
1
2
3
4
5
6
D4201
MTZJ2.2B-EIC
D4210
MTZJ6.8B-EIC
D4211
MTZJ6.8B-EIC
D4213
MTZJ15B-EIC
D4208
MTZJ6.8B-EIC
D4209
MTZJ6.8B-EIC
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
:LES PIECES REPAREES PAR UN
ETANT
ATTENTION
CP4202
IMSA-9130B-05-PT1
1
2
3
4
5
E
H2
H1
H3
NC
J4201
YLC21-3041V
1
23
45
CAUTION: DIGITAL TRANSISTOR
Q4229
KRC102SRTK
LEVEL SHIFT
Q4224
KRC102SRTK
LEVELSHIFT
Q4217
KTC3875S_Y_RTK
MUTE SW
Q4212
KTC3875S_Y_RTK
SW
Q4215
KTC3875S_Y_RTK
KTC3875S_Y_RTK
MUTE SW
R4274
100K
R4298
1M
R4216
4.7K
R4269
10K
R4277
4.7K
R4249
100
R4250
100
R4246
75 1/4W
R4270
100K
R4296
1M
R4295
1M
R4264
1K
R4265
1K
R4413
4.7K
R4414
4.7K
R4239
75
R4208
100
R4247
75
R4255
75
R4261
75
R4272
150
R4273
150
R4211
8.2K
R4215
18K
R4288
10K1/4W
R4299
1M
R4294
1M
R4297
1M
R4280
10K 1/4W
R4207
75
R4206
560
R4204
75
R4205
75
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
C4274
0.0047
B
C4429
0.1
F
C4280
0.0047
B
C4233
270P CH
C4270
0.0022
B
C4226
0.1
B
C4240
10
C
C4235
10 C
C4286
1
B
C4428
47P
CH
C4427
47P
CH
C4276
270P CH
C4284
100P
CH
C4295
100P
CH
C4291
100P
CH
C4400
100P
CH
C4478
0.0022
B
C4239
10
C
C4236
10 C
C4237
10 C
C4238
10 C
C4212
0.0022 B
C4211
0.0022 B
C4430
47
16V
16V
YK
W904
W809
W810
W811
L4237
47uH
C4405
10
16V
KANP
C4278
10
35V
KANP
D4212
MTZJ6.8B-EIC
D4206
MTZJ4.7B-EIC
L4208
22uH
L4205
22uH
L4211
22uH
L4212
22uH
S810X
AUDIO_MUTE
REMOCON_IN
AFT
RF_AGC
STANDBY_LED
TUNER_A_MONO_IN
TU_VIDEO_OUT
AT+5V
P.CON+5V
AT+3.3V
GND
GND2
P.CON+5V
AT+3.3V
GND
GND2
SCALER_SW
SCART1_SW
PANEL_ON-H
DVB_FAN_ON-H
DTV_ON-H
DVB_SW-H
POWER_ON-H
POWER_FAIL
SCART1_Y_IN
SW_CVBS
SCART1_V_IN
P.CON+5V
REMOCON_IN
STANDBY_LED
SW_C
SCART1_Y_IN
SW_Y
SCART1_R_IN
SCART1_G_IN
SW_CVBS
SCART1_B_IN
SCART1_SW
DIGITAL_POWER
SCART1_G_IN
PANEL_ON-H
DVB_FAN_ON-H
DVB_FAN_ON-H
DTUNER_V
SC1_A_IN_L
POWER_ON-H
DTV_ON-H
DTV_ON-H
AT+5V
POWER_FAIL
SC1_A_OUT_L
SCART1_R_IN
SC1_A_IN_R
SC1_A_OUT_R
SC1_A_OUT_R
EXT_MUTE
DTUNER_U
SW_CVBS
SC1_A_IN_L
SC1_A_IN_L
P.CON+5V
SC1_A_IN_R
SCART1_V_IN
V_IN
Y_IN
S_SW
Y_IN
S_SW
SCART1_B_IN
GND2
C_IN
A_IN_R
A_IN_R
EXT_MUTE
DTUNER_Y
A_IN_L
SCALER_SW
SW_Y
SW_C
SW_Y
SW_C
Y_IN
S_SW
C_IN
SC1_A_OUT_L
SC1_A_OUT_R
SC1_A_OUT_R
V_IN
DTUNER_Y
A_IN_L
DTUNER_U
A_IN_R
DTUNER_V
DIGITAL_POWER
DIGITAL_POWER
H-4
H-3
PCBD20
CMF088
CMF088
(AV PCB)
3.3
2.5
2.5
5.0
3.6
FROM/TO SCALER
FROM/TO SCALER
0
0.6
2.5
0
5.1
0
0
21-Y IN
21-R IN
TUNER OUT
VIDEO IN
GND
GND
GND
21-B IN
FOR VCR
GND
GND
21-G IN
GND
NC
NC
GND
GND
R IN
R OUT
L OUT
L IN
NC
3.2
0
2.5
0
2.5
1.8
0
NC
2.6
2.6
0
3.2
3.3
5.1
3.2
0
3.3
IN1A
GND1
IN2B
V+
CTL
IN2A
GND3
IN3B
NC
OUT3
OUT2
GND2
NC
IN1B
OUT1
IN3A
C
Y
FROM/TO SOUND AMP
FROM/TO POWER
FROM/TO AV SWITCH
5.0
5.1
2.9
0
2.0
2.9
DVB_FAN_ON-H
POWER_ON-H
POWER_FAIL
GND
SCART1_Y
GND
SW_R/Cr(V)
GND
SW_G/Y
GND
SW_B/Cb(U)
GND
EXT_MUTE-H
AUDIO_MUTE
AGC
AFT
REMOCON IN
STANDBY LED
SWITCH_VIDEO_C
GND
SWITCH_VIDEO_Y
GND
SWITCH_CVBS
GND
DTUNER_POWER
PANEL_ON-H
SCART1_SW
GND
DVB_SW-H
DVB_POWER_ON-H
5.0
2.9
0
2.0
5.1
2.9
L
Analog TUNER
H
SWD CVBS(Digital)
L
H
12pin
SCART RGB
D_TUNER YUV
V
R
L
FROM/TO TUNER
L
H
VCC
6dB
BUFFER
0
0
5.1
16
15
17
18
21PIN SCHEMATIC DIAGRAM
(CP802)
FROM/TO STEREO
Y_IN
S_SW
C_IN
GND
GND
(CP4203)
FROM/TO OPERATION/
REMOCON/SAFETY 1
REMOCON/SAFETY 1
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