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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: 8
CROWN
CTV-
729
6
I have this tv model and at this moment it just has sound, not image.
Could possibly be suffering from frame collapse, try turning up the screen voltage on the LOPT slightly and see if a white line appears across the screen, otherwise I would be looking to see if the tube heaters are lit.
04-05-06
NEI
729
6
Poor pic, flashing lines, varying width
C031 47µ 250v leaky
14-09-04
Nokia
SFN
729
6PP
Int failure of Line dr Tr TK5
Mod reqd - replace TK5 BC327A & remove DT1 diode near PAL module. Replace R056/57 1k5 sm with 2k2 sm
14-09-04
Protech
729
5
Field collapse
No volts pin 33 TDA8362A (field ramp) - R810 22k o/c
14-09-04
Protech
729
5
No sound
TDA1521A Audio o/p chip u/s due to C380 1000µ 35v s/c
14-09-04
Protech
729
5
Tuning drift
Tuning volts varies due to C504 0µ1 leaky
14-09-04
Protech
729
5 11AK12
Field collapse
R818 22k 1w in 33v line o/c
14-09-04
Protech
729
6NT
Field collapse
TDA8361A jungle chip - no field drive o/p although most dc volts were about right
14-09-04
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