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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: 17
B & O
3119
Dead , safety resistor RPl4 open-circuit and the
Replace the line output transformer , the TDA4950 EW correction chip IG01 and coil LG02 .
14-09-04
B & O
MX2000 3119
St/by only (dot in display)
124v HT present no line drive as RP10 1R2 hi res
14-09-04
Blaupunkt
311.02
Storing vol settings
Press the button "N/E" on remote while volume indication is still showing in the picture, and as soon "Memo N/E" is shown, press button "N/E" for a second time.
14-09-04
Bush
20
31 1
1AK19-5
Dead with no power led
HT only 60v - dis'd R823 to opto got HT up to 113v but with poor reg - C829 smoothing cap faulty
14-09-04
Bush
3114
Dead HT pulses on & off when mains sw held in
IC401 TA8808N 64pin chip was faulty
14-09-04
Bush
3114A
St/by only
R502 330k o/c
14-09-04
Bush
TV311
Frame - height reduced & foldover.
3VT13 , ( BC287 )
14-09-04
Bush
TV311
No sound or picture.
3R86 ( 150ohm ) O/C.
14-09-04
Hitachi
C1414R-311
dead
Q903 ON4584 chopper s/c R951 39k hi res
14-09-04
Hitachi
C2114T-311
No control via front controls/sigs disappear
Fit updated micro kit pt no A523217
14-09-04
Hitachi
C2514Z311
Hotel mode - stuck in
Hold in Vol + & Vol- whilst sw on, when display appears with symbols increase vol to level reqd
14-09-04
Hitachi
C25WITN311
Int starts with brill increasing & fback lines showing then line collapse
dry jointed C703, by line transistor. Resoldered IC951 and 952
14-09-04
Hitachi
C28W1TN-311
Dead
R950 68k o/c, Q954 s/c, BU2508AF LOPTr s/c - psu will work for checking if loaded with 2k2 10w
14-09-04
Hitachi
C28WITN311
Sw off straight after sw on
R807 & Q816 on CRT base faulty but replacements did not cure - clean pins IC400 TDA9875A did
14-09-04
Hitachi
C32W510SN-311
Dead with st/by led pulsing
IC4000 TDA7263M Audio o/p chip s/c
14-09-04
Hitachi
C32WF810N-311
Tuner drift effect
IC1200 TDA9320H sm chip faulty & upsetting tuners AGC
14-09-04
Protec
37
31 1
1AK20
St/by only aft trying to start
D604 BA157 s/c in 200v supply & LOPTx arcing
14-09-04
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