Main Board - Sanyo PLC-XF70 Service Manual

Troubleshooting
Check the MAIN Board.
PW_
DRE/
DGE/
IC6201
DBE
FPGA
<EP2C35F484>
PW_
DHSYNC/
DVSYNC/
DCLK/
DE
IC802
EEPROM
IC801
CPU(SH3)
<HD641772F>
OUT_R1/R2
FRP, VD, PRG_R,
RCLK12_R
RET_R, SCAN, TC_XCLR,
GAN_SCL/SDA
OUT_G1/G2
RAOUT/
GAOUT/
BAOUT/ IC401
DIGITAL GAMMA
CORRECTION
<CXD3540AGB>
VOUT/
FRP, VD, PRG_G,
HOUT/
_PIC RCLK12_G
RET_G, SCAN, TC_XCLR,
GAN_SCL/SDA
OUT_B1/B2
FRP, VD, PRG_B,
RCLK12_B
RET_B, SCAN, TC_XCLR,
GAN_SCL/SDA
IC1861
IC1851
FLASH ROM
SDRAM
-13-

MAIN BOARD

IC501
SAMPLE & HOLD
R1 <CXA7009R>
IC1501
R2
SAMPLE & HOLD
<CXA7009R>
IC531
SAMPLE & HOLD
G1 <CXA7009R>
IC1531
G2
SAMPLE & HOLD
<CXA7009R>
IC561
SAMPLE & HOLD
B1 <CXA7009R>
IC1561
B2
SAMPLE & HOLD
<CXA7009R>
CHECK
LCD PANEL
DRIVE
SIGNAL
Timing Chart
TP503
TP533
TP563
PSIG
TP501
RED
S & H
OUTPUT
TP531
GREEN
S & H
OUTPUT
TP561
BLUE
S & H
OUTPUT
CHECK
PSIG SIGNAL
TP501
TP503
R-LCD
PSIG
PANEL
TP531
TP533
G-LCD
PANEL
TP561
TP563
B-LCD
PANEL