
- 21 -
4. NO Teletext (Picture OK)
Waveform of MAIN1
IC501 #4 ?
Micom Board Ic001 #21 ?
Check OPTION3 TEXT Code
(SVC MODE)
Check Micom IC001
#57~60
5. NO OSD (ON SCREEN DISPLAY)
Waveform of Micom Board IC001 #29,#30 ?
Horizontal, Vertical Fly Back Input
Waveform of Micom Board IC001 #57,58,59,
60 ?
Waveform of Video Board Ic702
#83,84,85,86 ? (R,G,B,FB)
Check DEF. Board.
Check Micom Board Q001,002
Check around IC001
Check around IC702
NO
YES
YES
NO
NO
NO
YES
YES
Summary of Contents for PT-53A83T
Page 30: ... 30 PRINTED CIRCUIT BOARD SIGNAL ...
Page 32: ... 32 MAIN2 DEF ...
Page 34: ... 34 SMPS NARROW SMPS WIDE ...
Page 35: ... 35 CPT CONV OUT ...
Page 36: ... 36 POWER S W SIDE AV CONTROL PRE AMP ...
Page 37: ... 37 VM TOP VM BOTTOM ...
Page 38: ... 38 CONVERGENCE TOP CONVERGENCE BOTTOM ...
Page 39: ... 39 MICOM TOP MICOM BOTTOM ...
Page 40: ... 40 100HZ TOP 100HZ BOTTOM ...
Page 41: ...AV TOP 41 AV BOTTOM ...
Page 43: ...MEMO 43 ...
Page 62: ......
Page 63: ... WIDE ...
Page 64: ......
Page 65: ......
Page 66: ......
Page 67: ......
Page 68: ...SVC SHEET 3854V A0094A S1 SVC SHEET 3854V A0094A S2 SVC SHEET 3854V A0094A S3 SVC SHE ...