Sharp LC-26SH12U - 26" LCD HDTV Service Manual page 38

A B
8
FROM/TO SOUND
SOUND_GND
SOUND+B
AT+5V
SW+12V
7
P.CON+5V
P.CON+9V
AT+5V
GND
FROM/TO POWER2
CP3401 (CP411)
127301123K2
B3406
SOUND+B
1 SOUND+B
HCB3216KF-391T20
2 SOUND+B
SOUND_GND
3 SOUND GND
4 SOUND GND
5 GND
6
6 GND
7 GND
8 SW+12V
B3407 HCB3216KF-391T20
SW+12V
9 SW+12V
S801X
10 LCD+B
B3403 FCM1608KF-102T02
POWER_ON-H
11 SYS_POWER_H
B3404 FCM1608KF-102T02
LIGHT_CTL
12 LIGHT_POWER_H
B3405 FCM1608KF-102T02
INVETER_H
13 INVETER_H
B3408 HCB3216KF-391T20
AT+5V
14 AT+5V
15 AT+5V
POWER_FAIL
16 POWER FAIL
W851
GND
17 GND
5
18 GND
19 GND
B3409
SW+4V[DTV]
20 DTV+B2
HCB3216KF-391T20
21 DTV+B2
B3410
SW+1.5V[DTV]
22 DTV+B
HCB3216KF-391T20
23 DTV+B LCD-H
4
FROM/TO MICON
DTV_ON-H
AT+5V
POWER_FAIL
POWER_ON-H
INVETER_H
LCD-H
LIGHT_CTL
P.CON+5V
GND
3
FROM/TO FRONT END
P.CON+5V
FROM/TO AV SW/JACK
P.CON+9V
P.CON+5V
GND
FROM/TO PC JACK
P.CON+9V
P.CON+5V
2
GND
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
1
A B
H-11
C
REG+9V IC
IC3404 BA00BC0WFP
V_C V_IN GND V_OUT V_ADJ
1 2 6 4 5 SW+1.5V[DTV]
5.0 12.0 0 9.0 4.5
P.CON+9V
SW
Q3406
2SB1132
P.CON+5V
5.0 5.0
0
R3424
P.CON+5V
22K
C3413
0.1 B
5.0
5.0
0
LCD+B
POWER_ON-H
SW
Q3408
KRC102SRTK
S802Y
LCD+B
4.7
4.7 4.7
4 5 6
S D D
G D D
3 2 1
0.8 4.7 4.7
0
R3442 LCD+B_SW
Q3407
5
1K KRC102SRTK
0
SW+4V[DTV]
AT+5V 5.0
SW
Q3402
R3401 2SB1132
47K
W840
5.3
W816
DTV_ON-H
3.1
0
SW
Q3401
KRC103SRTK
SH3401 SH3402 SH3403 SH3404 SH3405
YQ-36 YQ-36 YQ-36 YQ-36 YQ-36
CAUTION
:SINCE THESE PARTS MARKED BY
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
CRITICAL FOR SAFETY,USE ONES
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
DESCRIBED IN PARTS LIST ONLY
C
D E
POWER3 SCHEMATIC DIAGRAM
(DIGITAL PCB)
1.5
1.5
1.5
SW
1.5
IC3403 BD3504FVM
C3420
2.5
0.8
NRCS VD
0.01 B 0 1.0
GND G
1.8 1.0
VS
EN
5.0 0.3
VFB
Vcc
D3403
EC11FS2-TE12L
R3434
R3435
1K
4.7K
W815
5.0
DTV_+5V
REG+3.3V IC REG+2.5V IC
3.8
IC3401 PQ035ZN1HZPH
IC3402
V_C Vin
V_IN V_C V_OUT V_ADJ GND
1 2 6 4 5 1 2
3.2 4.0
5.0 4 3.3 1.3 0
R3425
220
ATTENTION
ARE :LES PIECES REPAREES PAR UN
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D E
F G
1.0
S G
1.0
S D
1.0
S D
B3402
1.0
S D
HCB3216KF-391T20
REGULATER IC
Q3405
RSS065N03FL16TB
1.8V_REG IC
IC3408 BD7820FP
V_C V_IN GND V_OUT V_ADJ
1 2 6 4 5
2.8 2.8 0 1.9 0.7
D3406
EC31QS04
DTV_+5V
REG+1.8V IC
BD7820FP IC3405 BD7820FP
GND Vout Vadj V_C Vin GND Vout Vadj
6 4 5 1 2 6 4 5
0 2.5 1.3 3.2 4.0 0 1.8 1.3
+3.3V
+2.5V_IO
MEM[1.8V]
CAUTION: DIGITAL TRANSISTOR
ETANT
F G
H
8
FROM/TO AV OUT
P.CON+9V
VDDC_1.0V FROM/TO INTERFACE_HDMI IC 7
P.CON+5V
HDMI_+1.8V
GND
+3.3V
FROM/TO ASIC
GND
VDDC_1.0V
+3.3V
+2.5V_IO
6
FROM/TO LVDS
LCD+B
GND
+3.3V
FROM/TO FLASH
GND
DTV_+5V
+3.3V
5
FROM/TO FRONT END
+3.3V
GND
+2.5V_IO
FROM/TO VIDEO AD CONVERTER
+3.3V
+2.5V_IO
GND
4
FROM/TO AV OUT
GND
+3.3V
+2.5V_IO
3
FROM/TO SDRAM
+2.5V_IO
+3.3V
VDDC_1.0V
MEM[1.8V]
2
GND
PCBDH0
1
CEF276
H
H-12