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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: 119
Amstrad
C
T3
028
No signals or tuning volts
R124 15k o/c
14-09-04
B & O
Teletext 33XX
Display - no OSG - teletext on 100.
Chip 8IC1 ( 4015 )
14-09-04
Beko
A
T3
Dead - tripping
R111 820k 1/2w, R112 330k 1/2w o/c
14-09-04
Beko
A
T3
Int video, lines, no r/c action etc
IC901 micro IC skt int - replace skt with good quality one
14-09-04
Hitachi
C2114T-311
No control via front controls/sigs disappear
Fit updated micro kit pt no A523217
14-09-04
ITT
C
T3
306 Mono A
No sync.
C609 ( 100pf ) ceramic off pin 7 TDA2579
14-09-04
ITT
C
T3
315 Pico S
Dark picture.
270k resistor in 1st anode supply.
14-09-04
ITT
C
T3
325 Pico S
No colour after few hours.
T1410 in tuner control unit ( IFB351 )
14-09-04
ITT
C
T3
326
AFTER 10 MINS CHANNEL DISPLAY FLASHES AND SET GOE
IC1405 5v REG INT OC ( MAY CAUSE TUNING INFO TO BE LOST )
14-09-04
ITT
C
T3
326 Mono B
Dead - 115v at BU508D collector.
Try LOPTX see Tv mag.
14-09-04
ITT
C
T3
326 Mono B
Startup - no startup - int.
C701 , C707 ( 2.2u f )
14-09-04
ITT
C
T3
414
Line ringing
C724 18000pf u/s
14-09-04
ITT
C
T3
425 80R
Flyback - white screen & flyback lines.
A1 control cracked , R544 ( 820k )
14-09-04
ITT
C
T3
425 80R
Standby - going into standby.
IC1404 5 volt Reg.
14-09-04
ITT
C
T3
425 80R 110°
Standby - intermittent going to standby.
Power Tx on main PCB by loptx.
14-09-04
ITT
C
T3
435
St/by only
LOPTx - LOT192 Grandata u/s
14-09-04
ITT
C
T3
436 Trimline
Brightness at maximum.
T1412 ( BC546 )
14-09-04
ITT
C
T3
437 Comp B
No startup just a low single thud.
LOPTX D050/37 TFAT 3806
14-09-04
ITT
C
T3
537
Int dead
IC405 5v reg
14-09-04
ITT
C
T3
725/1 80R
Stuck in standby - with a noise from LTB.
D732 ( BY500-400 ) s/c can use a RGP30
14-09-04
ITT
C
T3
835
NO PICTURE RASTER OK
T401 BC548 OC ( NO SANDCASTLE PULSES )
14-09-04
ITT
C
T3
835 Comp 80
Going into standby after a few minutes.
C703 ( 10u f , 50v ) little blue one.
14-09-04
ITT
S
T3
487
No picture.
IC401 ( TDA2170 )
14-09-04
ITT
S
T3
5767
Dead
Field o/p chip had blown
14-09-04
ITT
S
T3
8767
Dead
TDA2170 field o/p chip s/c
14-09-04
ITT
S
T3
8767
Field bounce
Dry joints regs
14-09-04
ITT
S
T3
8767
No pic - sound ok
TPU2732 Txt proc chip
14-09-04
Mitsubishi
C
T3
2BW1B
Dead apart from pri HT
Replace STRM6529 chopper chip, 0R22 res & check CCt prots in psu sec
14-09-04
Mitsubishi
C
T3
2BW1B W1
Dead with no LEDs lit - quietley tripping
Check 2 current sensing res R907 and R915 in PSU. They are 0.22R and 0.27R in parallel for hi res
14-09-04
Mitsubishi
C
T3
3C1STX
Dead
C905 & C910 leaky causing Q901 & D907 s/c - also check IC901
14-09-04
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