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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: 41
Amstrad
3021
Bright pic with fb lines
R111 220k on crt base
14-09-04
Amstrad
3021N
Dead
Q1 BUZ90A s/c, F01 2A o/c, R1 270k 1w o/c, R5 680k also replaced
14-09-04
Amstrad
CT3028
No signals or tuning volts
R124 15k o/c
14-09-04
Amstrad
CTV3021N
Dead
F01 2A fuse o/c, Q1 BUZ90A s/c, R5 680k & R4 270k check for o/c
14-09-04
Amstrad
CTV3021N
Dead - chopper Tr s/c & fuse o/c
R4 270k o/c & TDA4605-3 (must have "3" suffix)
14-09-04
Amstrad
CTV3021N
Dead - LOPTr instantly dies at sw on
C602 7n1 1.6kv had hairline crack which couldn't be seen in cct
14-09-04
Amstrad
CTV3021N
Dead no st/by led
Replace R5 680k 1/2w in psu
14-09-04
Amstrad
CTV3021N
Magenta pic
R209 82k 1/2w on crt pcb o/c & adj grey scale
14-09-04
Amstrad
CTV3021N
When replacing FET
Use BUX91 (BUZ90 will not last)
14-09-04
Amstrad
CTV3028
Bright raster with flyback lines
Dry joints CRT base pcb by ribbon cable
14-09-04
Amstrad
CTV3028
Dead
Mains bridge rect s/c & fuse o/c - fit 2n2 1kv caps across rects to prevent re-ocurrence
14-09-04
Amstrad
CTV3028
Dead - no st/by
R103 47k hi res
14-09-04
Amstrad
CTV3028
No pic via scart - ok with off air sigs
Vid present pin 15 TDA8361 jungle chip & AV sw volts ok at pin 16 - chip faulty
14-09-04
Amstrad
CTV3028
No signals - no supply to AV pin of tuner
R124 o/c
14-09-04
Amstrad
CTV3028
No tuning - osd ok
R124 15k back edge of panel in centre o/c
14-09-04
Amstrad
CTV3028N
Dead - 2A fuse o/c; BUZ90AF chopper s/c
R108 270k o/c & LOP tr for tripping
14-09-04
Amstrad
CTV3028N
No tuning
R124 15k 1w o/c near chopper tfmr under tube
14-09-04
Finlux
3021
Tuning inoperative - no sigs
IC i1 SDA3202-2 tuning synth replaced
14-09-04
Finlux
3021F
COLOUR VARIES ACROSS SCREEN
Ra34 47R OC FORCING 12v RAIL HIGH
14-09-04
Finlux
3021F
E-W fault
D28 on psu/lop pcb or TK4 TIP41A EW diode mod driver o/c
14-09-04
Finlux
3021F
FIELD COLL NO FIELD DRIVE
SDA2526 MEMORY IC !!!!
14-09-04
Finlux
3021F
Field collapse
SDA2526 memory chip on ctl panel under crt
14-09-04
Finlux
3021F
Int loss of sigs & int dead
Du21 BY299 in 7v supply int o/c
14-09-04
Finlux
3021F
INT LOSS SIGNALS
DU21 INT OC 7v RECTIFIER
14-09-04
Finlux
3021F
No frame.
SDA2526 memory IC on control PCB beneath tube.
14-09-04
Finlux
3021F
PICTURE TOO WIDE NO EW
CH29 0.1uF OC ON SIGNALS PCB
14-09-04
Finlux
3021F
Varying col intensity
Hum bar on 12v line - Ra34 47R
14-09-04
Finlux
3021F
Width excess/E-W faulty
CH29 0µ1 o/c in sigs pcb
14-09-04
Finlux
3024
BLACK BANDS ON SCREEN WORSE AT TOP
CK8 0.1uF ( UNDER FIELD HEATSINK )
14-09-04
Finlux
3024
Int sync
Ra13 & Ra17 on sigs/IF panel never been soldered
14-09-04
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