Sharp LC-26SH12U - 26" LCD HDTV Service Manual page 36

A B
8
7
JG2439
JG2440
JG2441
FROM/TO PC JACK
PC/HDMI_H
6
FROM/TO INTERFACE_HDMI IC
RXT0_RST
XRESET_HDMI
FROM/TO MICON
SD-H
5
AFT_1
AFT_2
AFT
FROM/TO SOUND
DTUNER_AUDIO_SW
AUDIO_MUTE-H
4
FROM/TO AV SWITCH/JACK
SW_C_OUT
3
PC/HDMI_H
TU_VIDEO
SIF
SW_Y/CVBS_OUT
FROM/TO POWER3
P.CON+5V
2
+2.5V_IO
+3.3V
GND
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
H-7
C
FRONT END SCHEMATIC DIAGRAM
ATSC/CLEAR CABLE ASIC IC
IC2401 X242 (11/14 FRONT END)
VI_ATBM 0
C13 VI_ATBM FAT_IFP
GND
VI_ATBP 0
C12 VI_ATBP FAT_IFM
C2523
C2509 0.1 B 2.5
A12 VI_REFM0
0.1 B
2.5
B12 VI_REFP0 AGC_SDMX
C2510 10 C
1.2
A14 VI_BYPASS0 AGC_SDM1
AGC_SDM2
2.5
C14 ADC0_AVDD_1
B2409
2.5
C16 ADC0_AVDD_2
FCM1608KF-601T02
0
B13 ADC0_AVSS_1
0
B15 ADC0_AVSS_2
C2524
0.1 B
C2511 0.1 B 2.5
A8 VI_REFM1 GPIOC(0)
2.5
B8 VI_REFP1 GPIOC(1)
C2512 10 C 1.2
C9 VI_BYPASS1 GPIOC(2)
GPIOC(3)
2.5
B11 ADC1_AVDD_1 GPIOC(4)
B2407
2.5
C10 ADC1_AVDD_2 GPIOC(5)
FCM1608KF-601T02
GPIOC(6)
GPIOC(7)
0
A10 ADC1_AVSS_1 GPIOC(8)
0
B9 ADC1_AVSS_2 GPIOC(9)
C2519
GPIOC(10)
B2408 0.1 B
3.4
+3.3V
D10 VI_AVDD33 GPIOC(11)
FCM1608KF-151T06 C2520
GPIOC(12)
1 B
GPIOC(13)
CVBS_IN
JG2455 GPIOC(14)
0
NC B16 VI_IN0 GPIOC(15)
0
NC C15 VI_IN1
0
NC B14 VI_IN2
21
L2403
C2528 0.01 B 1.0
A13 VI_IN3
2.2uH
0
NLV25 C11 VI_IN4
0
NC A11 VI_IN5
0
NC B10 VI_IN6
20
L2401
C2532 0.01 B 1.0
A9 VI_IN7
2.2uH NLV25
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.
C
D E
(DIGITAL PCB)
C2536 R2462
T_FAT_IFP
0.1 B 100
0.8
A15
C2537 R2463
0.8 T_FAT_IFN
A16
0.1 B 100
DNI
AUX_AGC
0
B5 JG2442
R2457
3.4
FAT_IFAGC
C5
FAT_RFAGC 1K
0
A4 JG2443
C2538
0.1 B
R2465
3.3
A5
100 R2459
3.3
C6
100
3.3 PC/HDMI_H
B6
3.3
A6
NC
3.3 AUDIO_MUTE-H
C7
0 EXIT-MUTE-H
B7 JG2446
0 DVI_HPD1
A7 JG2447
3.3
RXT0_RST
C8
3.3 SD-H
AD21
3.3 AFT_1
AE21
3.3 AFT_2
AF21
3.3
AD20
DVI_A_SW_COMP-H
3.3
AE20 JG2449
DVI_A_SW_HDMI1-H
3.3 XRESET_HDMI
AF20
JG2456
3.3
AD19
NC
3.3 DTUNER_AUDIO_SW
AE19
CAUTION ATTENTION
:SINCE THESE PARTS MARKED BY ARE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
D E
F G
5.0
9.4
50V
TUNER+30V
B2801
P.CON+5V
FCM1608KF-102T02
FCM1608KF-102T02
C2810
W821
TUNER+30V
R2801 100
TUNER_SDA
R2802 100
TUNER_SCL
W820
AFT
SIF
W877
TU_VIDEO
1 B2804
FCM1608KF-102T02
FCM1608KF-102T02
T_FAT_IFP
T_FAT_IFN
R2808
FAT_IFAGC
100
:LES PIECES REPAREES PAR UN ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
F G
H
8
7
C2819
50V 0.47 V-S
4.2 0 0 0 17.8 33.7
14 13 12 11 10 9 8
CVCC COSC NC NC NC CP3 CP3
CP1 CP1 GND CP2 CP2 CREG COUT
1 2 3 4 5 6 7
6
5.1 0 17.0 9.5 30.9 30.6
C2808 C2817
0.47 V-S 50V 0.47 V-S
TU2801
22 23
NC 1
NC ENG36E03KRF
0
5
NC 2
NC
0
NC 7
AGC
0
NC 8
TU
0
B2802
9
+5V 4
5.0
0.1 B
NC 10
NC
0
C2821 0.1 B
11
+30V
30.0
C2811 47P CH
12
SDA
3.3
C2812 47P CH
13
SCL
3.3
C2813 47P CH
14
AFT
2.5
15
SIF
1.0
16
V_OUT
1.0
B2803
3
17
+5V
5.0
18
IF OUT1
0.8
19
IF OUT2
0.8
20
IF AGC
3.4
NC 21
IF OUT
0
24 25
2
PCBDH0
1
CEF276
H
H-8