Sharp LC-20S5E-BK Service Manual page 40

A B
8
FROM/TO POWER2
CP3401 (CP503)
A2001WR2-14P
1 SOUND+B
7
2 SOUND GND
B3401
3 AT+40V
B3400 HCB1608KF-121T20
4 AT+14V
HCB1608KF-121T20
5 AT+3.3V
6 AT+3.3V
7 AT+3.3V
8 GND
9 GND
10 GND
11 GND
12 UNREG+6V
13 UNREG+6V
6
14 P.CON-6V
5
4
3
FROM/TO POWER2
CP3400 (CP502)
A2001WR2-7P
7 OFL1
6 OFL2
5 LMP ERR
4 STANDBY-H
3 PANEL ON-H
2
2 POWER_FAIL
1 GND
0
SW
Q3408
0
KRC102SRTK 3.3
3.3
0
SW
0 Q3409
KRC102SRTK
1
CAUTION
:SINCE THESE PARTS MARKED BY ARE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
A B
H-3
C
3.3
B3402
R3436
HCB1608KF-121T20
0
2.2K 1/4W
B3403
LCD_SW
HCB1608KF-121T20
Q3406
3.3
KRC102SRTK
0
B3404
HCB1608KF-121T20
B3405
HCB1608KF-121T20
F4
9V_REG
IC3404
BA00BC0WFP
V_C V_IN GND V_OUT V_ADJ
1 2 6 4 5
3.3 13.5 0 9.0 4.5
R3432
+-1%
6.8K
D3409
EC11FS2-TE12L
R3425
100
SH4301 SH4302 SH4303
R3426
YQ-36 YQ-36 YQ-36
100
ATTENTION
:LES PIECES REPAREES PAR UN ETANT
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
DANGEREUSES AN POINT DE VUE SECURITE
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
N'UTILISER QUE CELLS DECRITES
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
DANS LA NOMENCLATURE DES PIECES
C
D E
POWER1 SCHEMATIC DIAGRAM
(MAIN PCB)
P.CON+3.3V SW
Q3407
KTA1664-Y-RTF/P
3.3
0
PANEL+32V_SW
Q3400 R3418
KTA1504S_Y_RTK 2.2K 1/4W
40.0 31.0 TU+32V SW
Q3402
L3400 33.0
KTA1504S_Y_RTK
R3421
47uH
R3416 35.0 31.0
1K 1/4W
22K
R3419
33.0
22K
33.0
LCD_SW
Q3401
3.3
KRC102SRTK
0
3.3
LCD_SW
3.3
Q3403
KRC102SRTK
0
P.CON+14V SW
Q3405
KTA1664-Y-RTF/P
14.0 14.0
0
R3422
0 2.2K 1/4W
LCD_SW
Q3404
3.3
KRC102SRTK
0
SH4304 SH4305 SH4306
YQ-36 YQ-36 YQ-36
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
F G
VOLTAGE CTL
IC3403
KIA431A-AT
3 2 1
31.0 0 33.0
C3418 R3414
FROM/TO 21PIN
0.01 B
2.7K +-1%
GND
P.CON+9V
FROM/TO TUNER
TUNER+32V
P.CON+3.3V
GND
FROM/TO RSDS
P.CON+3.3V
LCD+32V
P.CON-6V
P.CON+14V
GND
FROM/TO JACK
AT+3.3V
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
GND
P.CON+8V
FROM/TO SCALER
GND
D3804
P.CON+8V
EC11FS2-TE12L
AT+3.3V
POWER_FAIL
SYS_POWER_H
INVERTER_DET
PANEL_ON-H1
LIGHT_CONTROL1
LIGHT_CONTROL2
STANDBY_H
PANEL_ON-H2
CAUTION: DIGITAL TRANSISTOR
F G
H
8
7
6
5
4
3
2
PCBF40
1
CMF102
H
H-4