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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: 4
Sony
BE-4A KVM2171U
frame collapse
R622 (HT feed) o/c, R814 0.47R safety (frame feed) o/c
14-09-04
Sony
BE-4A KVM2171U
no text, excessive width, poor grey scale
NVM corruption. Replace IC002 new type ST24C02FB6 (875937032). Change C0255 from 47uF to 1000uF, add 5.6V zener from pin 8 IC002 (cathode) to earth, tighten earth spring around CRT in the shape of U
14-09-04
Sony
BE4A KVM2171U
Field collapse
R814 0R47 o/c
14-09-04
Sony
BE4A KVM2171U
Luma low, poor sync, field up at bottom & E/W bowing
OK when heated - C627 100uF 10V in the 5 volt rail, high ESR, Off pin 8 of IC603
14-09-04
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