LG PT-43A80 - Page 20

- 20 -
4. NO Teletext (Picture OK)
Waveform of MAIN1
IC501 #59 ?
Waveform of IC001 #12 ?
Check OPTION1 TEXT Code
(SVC MODE)
Check PIP Board
IC1205 #2, #4
5. NO OSD (ON SCREEN DISPLAY)
Waveform of MAIN1 IC001 #19,#20 ?
Horizontal, Vertical Fly Back Input
Waveform of MAIN1 IC001 #38,39,40,41 ?
(R,G,B,FB)
Waveform of MAIN1 IC501 #41,42,43,44 ?
(R,G,B,FB)
Check DEF. Board.
Check MAIN1 Q010,Q009,Q002
Check input power of IC001
Check around Q014, Q015, Q016, Q017
NO
YES
YES
NO
NO
NO
YES
YES
All manuals and user guides at all-guides.com