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Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair
Make
Model
Problem
Solution
Date
Found: 10
Mitsubishi
Ct25B2STX
buzz on sound - flat pic
0.47µ 50v electrolytic in if and dry joints in if
14-09-04
Mitsubishi
CT25B2STX
Dead - Q901 s/c.
Fit mod kit ( wVe 77901 ) R901 , D908 , Q901 , C908 to 2700pf , C966.
14-09-04
Mitsubishi
CT25B2STX
Field collapse
IC451 TDA8178S - if TDA8171 used mod reqd
14-09-04
Mitsubishi
CT25B2STX
Field collapse - replacement of FOP chip
When replacing failed IC451 TDA8178S check elects in field & psu ccts; note TDA8178 nla - use TDA8171 & mod kit usually supplied with it
14-09-04
Mitsubishi
CT25B2STX
FIELD COLLAPSE , NO 30V RAIL
IC551 ( EW ) & R976 , ALSO CHECK Z551
14-09-04
Mitsubishi
CT25B2STX
FRAME COLLAPSE
REPLACE IC451
14-09-04
Mitsubishi
CT25B2STX
Nicam dropout with crackling
Dry joints IF unit
14-09-04
Mitsubishi
CT25B2STX
No sound
Format EEPROM as per manual
14-09-04
Mitsubishi
CT25B2STX
Several attempts reqd to sw on & HT high initially
C909 2.2uF in primary of PSU.
14-09-04
Mitsubishi
CT25B2STX
Smeary video esp when cold
Check/replace caps in IF can
14-09-04
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