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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
1
473
T
Dead - off with flash
BUZ77B chopper s/c; R805 330k hi res at 570k; R889 0R47 o/c & replaced TDA4605-2 & C831 1µ 50v as a precaution
14-09-04
Bush
1
473
T
To enter serv mode on "11AK08" version (printed on front edge of chassis)
1 Press vol- on the keypad 2 Press 'prog' on the handset 3 Press '--' on the handset 4 Press TV on the handset (That's the one with the blank screen on it) Use prog + & - to select parameters and vol + & - to alter values. The red button stores and the exit with 'TV'
14-09-04
Bush
1
473
T 11AK08
Line tearing
C818 (47MFD 160VW), +B line smoothing capacitor (high ESR).
14-09-04
Bush
1
473
T 11AK08
Pic int smeary or dissappears
Dry joint PL901 earth wire on crt base panel
14-09-04
Bush
1
473
T 11AK20
Field collapse
R709 sm 10k adjacent to FOP chip not properly soldered in
14-09-04
Philips
L7.3A 25PT4
473
/79R
Dead with slight arcing sound
capacitor 2463 1000pf 2KV ceramic disc arcing
14-09-04
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