Sharp LC-26SH12U - 26" LCD HDTV Service Manual page 35

A B
8
7
FOR FIRM UPDATE
CP2401 YKF45-0036N
JG2412
DTV_+5V
1 +5V
JG2413
USB_N_A
2 USBN
JG2414 USB_P_A
3 USBP
6
4 GND
USB_P_A R2431
USB_N_A R2432
R2424 15K USB_P_B
R2425 15K USB_N_B
FROM/TO AV SWITCH/JACK
I2C_DATA
I2C_CLK
5
FROM/TO MICON
TX_[X242]
RX_[X242]
R2428 3.3K
FROM/TO SOUND
I2C_DATA R2429 3.3K
I2C_CLK
R2435 100
I2C_CLK_A
R2436 100
I2C_DATA_A
FROM/TO ASIC
I2C_CLKC
4
DTV_RESET
I2C_DATC
R2426 3.3K
FROM/TO VIDEO AD CONVERTER
I2C_CLKC R2427 3.3K
I2C_DATC
DVI_INT_ADC 5V/3V LEVEL SHIFT
2SK393800L
FROM/TO POWER3
R2511 4.7K
DTV_+5V
GND I2C_DATA
+3.3V
5V/3V LEVEL SHIFT
3
FROM/TO INTERFACE_HDMI IC
R2512 4.7K
DVI_INT_HDMI
I2C_CLK
I2C_DATC
I2C_CLKC
FOR DEBUG
CP2402 A2001WV2-9P
1 GND
2 I2C CLK_A
3 I2C DATA_A
4 DTV_IIC_OFF
2
5 GND
JG2434 TWIRE_RXDB
6 RDB
JG2435 TWIRE_TXDB
7 XDB
JG2436
DTV_+5V
8 5V or 3.3V
JG2437 DTV_RESET
9 DTV RESET
1
A B
H-5
C
5V/3V LEVEL SHIFT
5.0
D
G
5.0
ATSC/CLEAR CABLE ASIC IC S
D
3.3
IC2401 X242 (14/14 USB/SERIAL)
G
3.3
S
3.3
0 3.3
4.7 TDA
AE22 USBPA TDA AF17
FWIRE_CSTA#
0 0
4.7
AD22 USBNA RTSA# AD17 JG2421
0 3.3
RDA
AD23 USBPB RDA AD16
FWIRE_RSTA#
0 0
AE23 USBNB CTSA# AE17 JG2422
3.3
NC AF22 USB_OVRCUR#
0
0 TWIRE_TXDB
NC AD15 IRTXDA TDB E26
0
0 TWIRE_RXDB
NC AE15 IRRXDA RDB F25
0
0
JG2419 AE18 CAPT1 TDC AD18 NC
0
0
JG2420 AF18 COMP1 RDC AF19 NC
3.3 0
AF16 I2CCLKA SPI_CLK C26 JG2470
3.3 0
AE16 I2CDATAA SPI_IN C25 JG2471
0
SPI_OUT B26 JG2472
3.3 0
F24 I2CCLKC SPI_CS0 B25 JG2473
3.3 3.3
AUDIO_MCLK
F26 I2CDATAC SPI_CS1 A25
B2501
FCM1608KF-151T06
DVI_INT_HDMI
3.3
EEPROM IC
Q2403 S
IC2408 BR24L64F-WE2
3.3 G
0 3.3
D
A0 VCC
5.0
0 0
A1 WP
DVI_INT_ADC
3.3
Q2404 S
0 2.8 I2C_CLK_A
2SK393800L
A2 SCL
3.3 G
D
0 2.8
I2C_DATA_A
5.0 VSS SDA
C2500
0.1 B
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
FLASH SCHEMATIC DIAGRAM
(DIGITAL PCB)
Q2402
2SK393800L
3.3
ASIC/CLEAR CABLE ASIC IC
IC2401 X242 (6/14 FLASH)
5V/3V LEVEL SHIFT
Q2401
3.4
NFCLE
NFCLE C4
2SK393800L
3.4
ROMSCK_NFALE
NFALE A3
3.4
ROMSO_NFWE#
NFWE# B3
3.4
CS_NF1#
NFCE#1 B2
3.4
ROMSI_NFRE#
NFRE# A2
3.4
NFRY_BY#
NFRY BY# C1
0
ROMCS_NFCE0#
NFCE#0 B1
JG2423
0
NFIO0
AF3 NMI NFIO0 H2
Assert_NIM
0
NFIO1
NFIO1 H3
0
NFIO2
NFIO2 G1
0
NFIO3
NFIO3 F2
0
NFIO4
NFIO4 F1
0
NFIO5
NFIO5 E3
0
NFIO6
NFIO6 E2
0
NFIO7
NFIO7 D3
0
NFIO8 G3
R2446 1K
0
NFIO9 G2
JG2424
0 0
AE4 FINTR5 NFIO10 E1
0 0
AF4 FINTR4 NFIO11 F3 NC
0 0
NC B4 FINTR3 NFIO12 D2 NC
0 0
NC E25 FINTR2 NFIO13 D1
NC
0 0
NC D26 FINTR1 NFIO14 C2
NC
ROMCS_NFCE0#
0 0
D25 FINTR0 NFIO15 C3 ROMSO_NFWE#
NC
ROMSCK_NFALE
ROMSI_NFRE#
DTV_RESET
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
C2503
0.1 B
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
R2448 C2502 R2449
0.1 B 10K
2.2K
D2403
RB520S-30-TE61
JG2425
JG2426
JG2427
JG2428
JG2429
JG2430
JG2431
JG2432
JG2433
F G
H
8
7
6
5
4
3
2
1
PCBDH0
CEF276
H
H-6