mitsubishi CT28BW2B Repair Tips




Search: CT28BW2B mitsubishi
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MakeModel Ch.SymptomProblem SolutionSolutionBy:
MitsubishiCT28BW2BD
Reverts to st/by at sw onD507 BYD33G s/c in 28v supply to FOP
MitsubishiCT28BW2BD
No soundLT reg's were dry jointed causing intermittent loss of picture and sound, and I am sure this is what corrupted the eeprom. The Chassis is an EE3W and to access the service menu you need to press this sequence. "Menu,2,3,5,7". the adjustments are made in the same way as the EE3.
MitsubishiCT28BW2BD
Lum intDry joint 8v reg Q952 (On same heatsink as IC401 7 pin LT reg)
MITSUBISHICT28BW2B
SMEARING ON WHITES LOOKS LIKE SOFT CRTREPLACE R686 ON CRT BASE 1.8K OHM
MitsubishiCT28BW2B
Smearing on whites - OSD gives faulty crt symptomR686 1k8 pin 5 crt base - change to 2k7 & set G2 to 00 in set up menu
MitsubishiCT28BW2B
Small Bright raster with fb lines - arcing from setC551 3nF arcing - blew R686 - uprate to 2k7 on CRT base
MitsubishiCT28BW2B
Poor pics with streaking on whitesR686 1k8 hi res in G1 supply
MitsubishiCT28BW2B
Muffled sound from main spkrs - no prologic sound o/pIC351 audio o/p chip TDA7263
MitsubishiCT28BW2B
MUFFLED SOUND FROM MAIN SPEAKERS DOLBY TEST PRODUCES NO SOUND FROM FRONT SPEAKERSREPLACE IC351
MitsubishiCT28BW2B
BRIGHT RASTER WITH FLYBACK LINES SET ARCINGREPLACE C551 AND R686 (CRT BASE)