LG XV-BD212 Service Manual page 61

ELECTRICAL TROUBLESHOOTING GUIDE
A
Menu "Home" display
on monitor OK?
YES
"PIONEER Logo"
display on monitor
OK?
YES
SYSTEM part OK.
NO
1.2 V/ 1.5 V/
3.3 V OK?
YES
Reset &
UART_TX2, RX2
OK?
YES
X500
27.00 MHz
OK?
YES
IC506
NAND_ALE, NAND_CLE
OK?
YES
Replace IC500 BCM7633
or IC502, IC503 (DDR3).
B
YES
Proper
NO
assemble MAIN
and FRONT board
OK?
2-52
NO
Check IC150, IC151, IC153
and SMPS board.
NO
Check X101 and IC101.
NO
Replace X500.
NO
Replace IC506
(NAND FLASH).
NO
Assemble properly.