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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: 1771
Ferguson
TX90
DEAD APART FROM STBY LED
RP71 9k1 LOW DP36 SC
14-09-04
Ferguson
TX90
Dead.
L120 s/c turns.
14-09-04
Ferguson
TX90
Dim pic Brightness & contrast have no effect
R233 o/c
14-09-04
Ferguson
TX90
dist pic with hum bar
dry joints TR107
14-09-04
Ferguson
TX90
DISTORTED SOUND
R255
14-09-04
Ferguson
TX90
Faint colour - lack of contrast or brightness
R231 ( 143k )
14-09-04
Ferguson
TX90
Feild collaspe or linearity faults
D106 u/s
14-09-04
Ferguson
TX90
Field collapse
R187 6k2 o/c
14-09-04
Ferguson
TX90
Field collapse & no chan display then dead
1.6A fuse blows, loptr s/c used TIPL791A; R203 33R o/c; R200 390R o/c
14-09-04
Ferguson
TX90
field collapse when heated
DL08 1N4148 o/c - 9v supply to IL01 TDA8214B low at 5v
14-09-04
Ferguson
TX90
Field foldover in centre of screen
TDA4500 IC102 - pin 2 volts low
14-09-04
Ferguson
TX90
Field top & bottom foldover
Tr105 - used TIP120 as replacement
14-09-04
Ferguson
TX90
Flicking lines & partial field collapse.
DJ on field o/p transistors.
14-09-04
Ferguson
TX90
Flyback - lines & text lines down centre.
R194 ( 243k , 1 per cent ) high.
14-09-04
Ferguson
TX90
Flyback line at top or bottom.
Check RL10 is o/c then DL01 o/c for lines at top , s/c for bottom.
14-09-04
Ferguson
TX90
FLYBACK LINES TOP OF PICTURE
IL01 M52038SP
14-09-04
Ferguson
TX90
Frame - bottom fold up.
R203 ( 33ohm ) o/c.
14-09-04
Ferguson
TX90
Frame - collapse - bounce - height variations
D137 ( 68v ) zener leaky.
14-09-04
Ferguson
TX90
Frame - collapse - intermittent.
R187 ( 6.2k ) going o/c.
14-09-04
Ferguson
TX90
Frame - collapse - when set warms up.
Check D137 ( 68v ) zener.
14-09-04
Ferguson
TX90
Frame - flickering lines at bottom of picture
Check for drys on frame o/p transistors.
14-09-04
Ferguson
TX90
Frame - hold drift then field collapse.
C112.
14-09-04
Ferguson
TX90
Frame - reduced & no sound.
R144 , TDA4500.
14-09-04
Ferguson
TX90
Frame - roll - 1 or 2 times a minute - Int
Spark gap inside tube base connector.
14-09-04
Ferguson
TX90
Frame - top 1-inch of picture missing.
R237 ( 47k ) o/c or R240 ( 47k ) o/c.
14-09-04
Ferguson
TX90
Frame - top 2/3rd scan only & fold-up.
R203 33ohm o/c.
14-09-04
Ferguson
TX90
Frame collapse.
Drys on TR104/5 , D137 ( 68v zener ) s/c.
14-09-04
Ferguson
TX90
Frame collapse.
Check RL41 ( .22R , .5W ) or JL15 not shown on cct can go o/c.
14-09-04
Ferguson
TX90
Frame collapse.
R187 ( 6.2k ) o/c.
14-09-04
Ferguson
TX90
Frame roll - 1 or 2 times a min. intermittent
Spark gap inside tube base connector.
14-09-04
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