Sharp LC-20SD5E Service Manual page 42

A B
8
FROM/TO POWER2
CP3401 (CP503_1)
127301123K2
1 DTV P.CON3.3V
2 DTV P.CON3.3V
3 DTV P.CON3.3V
4 GND
5 GND
6 SOUND +B
7 SOUND +B
7
8 SOUND GND
9 SOUND GND
B3401
10 AT+40V
B3400 HCB1608KF-121T20
11 AT+14V
HCB1608KF-121T20
12 AT+14V
13 AT+3.3V
14 AT+3.3V
15 AT+3.3V
16 AT+3.3V
17 GND
18 GND
19 GND
6
20 GND
21 UNREG+6V
22 UNREG+6V
23 P.CON-6V
5
FROM/TO POWER I/O
DTV+4V
D3410 D3411 D3412
P.CON+12V_DTV
EC11FS2-TE12L EC11FS2-TE12L EC11FS2-TE12L
GND
4
CP3402
FAN MOTOR
A2001WV2-2P
M
1 1 FAN+12V
2 2 M_GND
R3421
M3400
2004KL-04W-B30-M09
47 1/4W
R3444
FROM/TO SUB MICON/RS-232C
1.5
270
R3420
3.3
DTV_FAN_ON_H
100
1.2
SW
Q3402
KTC3875S_Y_RTK
3
FROM/TO POWER2
CP3400 (CP502_1)
127301109K2
9 OFL1
8 OFL2
7 LMP ERR
6 STANDBY-H
5 PANEL ON-H
2
4 POWER FAIL
3 DTV ON-H
2 GND
1 GND
SW 0
Q3408
3.0
KRC102SRTK 0
0
3.0
0
SW
Q3409
KRC102SRTK
1
CAUTION
:SINCE THESE PARTS MARKED BY
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
A B
H-3
C
B3402
HCB1608KF-121T20
0
B3403
LCD_SW
3.0
HCB1608KF-121T20
Q3406
KRC102SRTK
0
B3404
HCB1608KF-121T20
B3405
HCB1608KF-121T20
R3442 R3452
22K
6.8K
14.5 DTV SW
R3443
14.0 Q3411
0
KRC102SRTK
6.8K
14.0
DIGITAL+5V SW 3.0
Q3410 0
KTA1281_Y
MOTOR SW
F4
Q3403
KTA1664-Y-RTF/P
9V_REG
12.0 14.0
IC3404
BA00BC0WFP
13.4
V_C V_IN GND V_OUT V_ADJ
SW 1 2 6 4 5
Q3412 3.0 9.0 1.2
14.5 0
KTC3875S_Y_RTK R3432 6.8K +-1%
D3409
EC11FS2-TE12L
R3425
100
SH4301 SH4302
R3426
YQ-36 YQ-36
100
ATTENTION
ARE :LES PIECES REPAREES PAR UN
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
C
D E
POWER1 SCHEMATIC DIAGRAM
(MAIN PCB)
P.CON+3.3V SW
Q3407
KTA1664-Y-RTF/P
3.4
3.3
3.0
R3436
270
PANEL+32V_SW R3451
Q3400
KTA1504S_Y_RTK 4.7K
R3418
32.0
40.0
4.7K
37.0
L3400
47uHNLCV32T
R3416
22K
0
LCD_SW
3.0
Q3401
KRC102SRTK
0
14.5 14.0
P.CON+14V SW
Q3405
8.5
KTA1664-Y-RTF/P
R3422 4.7K
0
R3450 4.7K
LCD_SW
Q3404
3.0
KRC102SRTK
0
SH4303 SH4304 SH4305 SH4306 SH4307 SH4308
YQ-36 YQ-36 YQ-36 YQ-36 YQ-36 YQ-36
ETANT
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.
D E
F G
FROM/TO 21PIN
P.CON+9V
GND
FROM/TO TUNER
P.CON+3.3V
GND
FROM/TO RSDS
P.CON+3.3V
LCD+32V
P.CON-6V
P.CON+14V
GND
FROM/TO SUB MICON/RS-232C
P.CON+3.3V
GND
FROM/TO JACK
GND
FROM/TO SOUND AMP
SOUND+B
AT+3.3V
POWER_FAIL
GND
SOUND_GND
FROM/TO REGULATOR
AT+14V
AT+6V
AT+3.3V
P.CON+8V
GND
FROM/TO SCALER
D3804
P.CON+8V
EC11FS2-TE12L
LIGHT_CONTROL2
LIGHT_CONTROL1
INVERTER_DET
GND
AT+3.3V
POWER_FAIL
SYS_POWER_H
PANEL_ON-H1
PANEL_ON-H2
STANDBY_H
DTVPOWER_H
PCBF40
CMG114
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
F G
H
8
7
6
5
4
3
2
CAUTION: DIGITAL TRANSISTOR
1
H
H-4