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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: 590
Amstrad
CTV
16
00
Field collapse
R709 22k o/c
14-09-04
Amstrad
CTV
16
00
Field collapse
Dry joint pin12 LA7800 timebase chip (12v supply)
14-09-04
Amstrad
CTV
16
00
Frame - no field scan.
R709 ( 22k ) in series with field hold control o/c.
14-09-04
Beko
1
16
328NX
Blank grey raster with white line at top
R815 22R in 16v supply o/c as C712 4µ7 hi esr also C811 220µ hi esr (16v supply line had risen to 29v)
14-09-04
Beko
16
228NTX
Dark pic when R/C used & when OSD present
C103 220µ 400v mains smoothing cap
14-09-04
Beko
16
228NTX
Dead
Dry joints bridge rect
14-09-04
Beko
16
228NX
Pic & sound disappears soon aft sw on
Sound present if txt selected - C208 470n in if module dry joint
14-09-04
Beko
16
326NX
Dead/st/by only or partial line coll
C805 330nF 400v dry joints or burnt
14-09-04
Beko
16
328
dead
s/c lopt use HR7218
14-09-04
Beko
16
328NTX
Blank raster with EHT present
Dry joints T104 5v reg
14-09-04
Beko
16
328NX
Blank red raster - sound ok
No volts coll T1205 - R1215 22k 1w on crt base
14-09-04
Beko
16
328NX
Dead aft LOPTx changed
Micro SDA20563A516 faulty
14-09-04
Beko
16
328NX
Keeps auto tuning to same chan
R61 27k 2w o/c - feeds 30v zener from 200v supply
14-09-04
Beko
16
328NX
No front panel control - r/c ok
Child lock on - to remove hold "+" & "-" buttons whilst sw on tv
14-09-04
Beko
16
328NX
No mono sound
Faulty IF can - pt no BEKO63S140
14-09-04
Beko
16
328NX
No pic unless A1 increased, then same again next time sw on
IC501 TDA4680
14-09-04
Beko
16
328NX
poor field lin
R717 1M hi res
14-09-04
Beko
16
628NS
Dead
R105 33k 2w o/c
14-09-04
Beko
NR284
16
ND
Bright white raster
No 200v to TDA6108JF vid amp - crack in print by LOPTx ( under plastic cradle)
14-09-04
Beko
NR284
16
NDS
Dead aft thunderstorm
IC601 (MC44608P40), T601 (2SK2545) R606/607 (0.47R, 1/2W) in psu replaced
14-09-04
Beko
NR284
16
NDS
Dead with LOPTx insulation breakdown
LOPTx Pt no 058834-TR2
14-09-04
Bush
2
16
0NTX
Dead
UC3844 in psu, LOPTr MJF18204 s/c (used BUT12A in lieu)
14-09-04
Bush
2
16
0NTX G1000
Bright raster with sound
No HT to RGBs - R315 10R pin 9 LOPTx o/c
14-09-04
Bush
2
16
3NTX
Dead with smoke
R809 0R47 fusible burnt; s/c chopper tfmr
14-09-04
Bush
2
16
3NTXA
Int sound
caused by bad joints UL302 coill near TDA2546 on Nicam pcb
14-09-04
Bush
2
16
7NTX
Dead
R5 680K 1 watt in PSU start up circuit
14-09-04
Bush
2
16
7NTX
Dead - chopper tr BUZ90 s/c
Check 220k & 330k res in psu
14-09-04
Bush
2
16
7NTX
Field - only 2" scan across centre, no sound/pic
R25 12k 1W in 33v line o/c
14-09-04
Bush
2
16
9NTX
Dead
R5 680k & check chopper tr
14-09-04
Bush
2
16
9NTX
Dead with 2.5A fuse o/c
R1 5R6 o/c, R4 270k o/c, Q1 MOSFET - use BUZ77B in lieu
14-09-04
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