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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: 6
Bush
2850NTX-A
Dead aft brief micro activity
Micro reqs sync pulse at pin 26 within 1 sec from line to function. This was missing due to T301 BC547B in line stage leaky
14-09-04
Bush
2850NTX-A
Line & field collapse (single dot)
Burnt line scan coils plug & TDA8170 fop chip, D402 BA157, fus res R408 o/c
14-09-04
Bush
2850NTX/A
Dead - no line scan
Scan pug/skt melted, after repair still faulty due to C307 330nF scan coupling cap o/c & check dry joints
14-09-04
Bush
2850NTXA
Dead with squegging noise from speaker
Cry joints C307 in line stage & field coll then visible, TDA8170 & R408 0R22
14-09-04
Bush
2850NTXA
E-W faulty
T302 (BC547) S/C and T303 (BC557) leaky.
14-09-04
Bush
2850NTXA
Field collapse
TDA8170 & R408 0R22
14-09-04
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Last SM download : apple apple-macbook-pro-a1425 051-9216
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