Copyright ©2011 LG Electronics Inc. All rights reserved.
Only for training and service purposes LGE Internal Use Only
Module Control Trouble Shooting
“TILT” on Adjust Remocon
: PDP internal pattern displays? PDP Module Power is OK?
N
PDP Module is OK.
Check SCL,SDA line Check Signal
output
N
Y
SCL (continue)
SDA (continue)
ACK
By Slave
9 1
D0
D7
9
ACK
By Slave
Command Data
for Addr Stop
By Master
D6
SCL 8
SDA 00
111 A7
W
Start
By
Master
Chip ID Address Byte
(0x1C) ACK
By Slave
0
191
A6 A1 A0
Command Address
Addr=A[7:0]
0
Write
only
Master : Image Board
Slave : PDP Module
< Sample Signal >
SCL
SDA
ACK signal Check
Low : OK
High : Error
Replace Control
Board
N
Check SMPS & cable
N
Y
Replace PDP Module