LG LAN-8680MH Service Manual page 84

• TV TROUBLESHOOTING FLOW CHART : TV
START.
TV MODE CHANGE.
YES
NO
TV DISPALY CHANGE?
YES
END.
NO
PN415 PINS 13,15,16
VOLTAGE OK?
YES
IC432 COMMUNICATION
I/O CHECK?
SYSTEM COMMUNCATION FAILURE
NO
YES
TV MODULE
ASSEMBLE STATUS
CHECK
YES
- 9-16 -
SET POWER PARTS
FAILURE CHECK
IC432 & PART FAILURE
CHECK
• TV CARD
CONNECTION
PROBLEM...
• POP UP
ASSEMBLE FAILURE
HAPPENED
TV MODULE FAILURE
CHECK