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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: 77
Nokia
N series
E-W dist with TH03 BD241D running hot
CH09 150nF o/c
14-09-04
Nokia
SFN Chassis
Field non lin with black bands
RS11 220R across field scan coils o/c
14-09-04
Nokia
SFN7296PP
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
Nokia
SP63D1 SFN
St/by only
Replace VE07 (s.m. transistor on front control panel, may read ok.)
14-09-04
Nokia
SP71D1
No pic or line drive, sound ok
hairline fracture of solder joint on sm resistor RK21
14-09-04
Nokia
SP71K1
Noisy PSU & int trip
V071 sm (near middle of pcb) - used BC858B
14-09-04
Nokia
SP71L1
Black vert line down rh side of pic
CK53 120nf in blanking cct
14-09-04
Nokia
ST271 Mono Plus
Lack of height
RS01 4M7 33v to pin 43 TDA8362A
14-09-04
Nokia
ST37H1
Field collapse
LT supply to DD01 low - being dragged down by faulty tuner
14-09-04
Nokia
ST51A1
No sound
Check mute trs VA60 & 61 sm
14-09-04
Nokia
ST51D2
Dead - primary supplies start up then trip on/off
Sec supplies only half correct value. Diode V035 BA157 u/s
14-09-04
Nokia
ST51D2 Mono Plus
Negative looking pic - fault on Txt panel
R08 BC858 sm
14-09-04
Nokia
Stereo plus
Int line tearing/jumping
Pic moves to right as set warms up ; VK16 BC858 sm was int
14-09-04
Nokia
Stereo plus
Reverts to st/by aft few mins
V071 BC858B sm in psu control
14-09-04
Nokia
Stereo Plus
2" band of line at centre of screen
TDA8350Q field/EW chip NS10
14-09-04
Nokia
Stereo Plus
Field top foldover
RK68 10R 42v supply to pin 8 of FOP chip hi res
14-09-04
Nokia
TV7161
Goes dead at sw on with brief screaming & EHT rush
HT high at 200v (160v); replaced caps in psu to cure this & LOPTx (HR6160) to cure small pic
14-09-04
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