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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
TX10
Teletext - interference pattern on teletext.
Change C415 from 100n to 1u f.
14-09-04
Ferguson
TX10
Teletext lines at top of picture on video ch.
TR771 ( ZTX450K ) o/c.
14-09-04
Ferguson
TX10
Tripping
CHECK L-O-TRANS AND LOPTY
14-09-04
Ferguson
TX10
Tripping - & frame collapse in between trips
DJ on earth connection of LOPTX
14-09-04
Ferguson
TX10
Tripping - after 1 min - line hunting.
D831.
14-09-04
Ferguson
TX10
Tripping - after 10-20 mins.
Fault caused by fitting K526/5518T in TR831.
14-09-04
Ferguson
TX10
Tripping - comes on if set-ht is reduced.
C711 , C712.
14-09-04
Ferguson
TX10
Tripping - from cold & chopper transistor hot
R704 ( 27R , 1W ) gone high.
14-09-04
Ferguson
TX10
Tripping - hum - flashing with line tear.
150v rail min setting R813 ( 121R ) goes low.
14-09-04
Ferguson
TX10
Tripping - intermittent.
Insulation breakdown between line OP transistor.
14-09-04
Ferguson
TX10
Tripping - intermittent.
R813 critical value.
14-09-04
Ferguson
TX10
Tripping - most common thing.
TR831 ( BU208A ) , R613 ( 10ohm ) flat w/w
14-09-04
Ferguson
TX10
Tripping - on channel change.
D801 ( 6.2v zenor ) , R810 ( 150k ) o/c.
14-09-04
Ferguson
TX10
Tripping - on peak whites.
Change R706 from 100k to 22k.
14-09-04
Ferguson
TX10
Tripping - replacement LOPTx cures fault but only for a short while before it dies
D831 BY255 was knocking out loptx NOTE loptx is small tfmr - NOT EHT tfmr
14-09-04
Ferguson
TX10
Tripping - resistor R722 getting hot.
IC801.
14-09-04
Ferguson
TX10
Tripping - stops if disconect scan coils.
D832 test by replacment.
14-09-04
Ferguson
TX10
Tripping - stops when disconect focus unit.
DJ on earth CRT base.
14-09-04
Ferguson
TX10
Tripping - stops when PL4 is unplugged.
T721 LOPTX has shorted turns.
14-09-04
Ferguson
TX10
Tripping - then dead - no 205/150/22/12V Rail
R724 ( 1k2 ) o/c , R613 ( 10R ) flat w/w 12volt Reg feed.
14-09-04
Ferguson
TX10
Tripping - wavy vertical lines - field roll.
R813 ( 121k ) high.
14-09-04
Ferguson
TX10
Tripping - width decreases.
D831 ( B7188 ) high.
14-09-04
Ferguson
TX10
Tripping - with field roll - intermittent.
Tracking between FB721 & core of chopper TX.
14-09-04
Ferguson
TX10
Tripping - with sound hum - no picture.
D702 low res ( 15r ) .
14-09-04
Ferguson
TX10
Tripping - with white raster.
C655 ( 470u f ) s/c.
14-09-04
Ferguson
TX10
Tripping esp at sw on
focus control - corona discharge
14-09-04
Ferguson
TX10
Tripping -hum/flashing-line tear intermittent
150v rail min setting R813 ( 121R ) goes low.
14-09-04
Ferguson
TX10
Tripping.
Small Transformer T721 at back left hand side.
14-09-04
Ferguson
TX10
Tripping.
T721 in LTB.
14-09-04
Ferguson
TX10
Tripping.
Check for good earth on CRT aquadag.
14-09-04
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