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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: 17
Grundig
CUC
2131
No power
R60502 (3M Ohm 2watt) open circuit
14-09-04
NEI
2131
BLANK RASTER WITH SOUND
TDA3653 FIELD OP. IC.
14-09-04
NEI
2131
FIELD COLLAPSE NO FIELD DRIVE
D001 TAA550 33v STABILISER US ( FEEDS REFERENCE INTO TDA8305 )
14-09-04
NEI
2131
Field collapse/ int height & going off tune
D001 TAA550 33v volt stab faulty - (feeds IC100 TDA8305 jungle chip)
14-09-04
NEI
2131
Field lineararity
C407 ( 1 , 500uF ) 50V
14-09-04
NEI
2131
No pic - sound ok
Pin 8 TDA3651A sandcastle pulse low - TDA3653 pin 7 FOP chip was cause - FOP chip faulty
14-09-04
NEI
2131
No sound
Check for D/J on Speaker plug
14-09-04
NEI
2131
Sound No pic
R605 ( 5K6 ) 2Watt
14-09-04
NEI
2131
TX
Dead - off with a bang
LOPTr Q600 s/c because C604 1µ 160v was dry jointed, also D604 BA157 s/c, R609 10k burnt up
14-09-04
NEI
2131
TX
Int dead
Dry joints L802 in psu - virtually invisible
14-09-04
Sharp
CV
2131
H
Dead - no line drive
Replace FOP IC X0640CE with equiv. LA7830 & 220mf cap. and the 4.7ohm safety feed res by LOPTx
14-09-04
Sharp
CV
2131
SC
Dead - led lights briefly at sw on
C723 3µ3 63v bipolar cap
14-09-04
Sharp
CV
2131
SC
Flyback lines at top of pic
C502 220µ 25v
14-09-04
Sony
BE1 KVM
2131
Repeatedly blows LOPTr
dry joints line osc IC551 TDA2579A and possibly C808. Other possibilities dry joints on line driver tx, LOPTx & STR giving an int high o/p
14-09-04
Sony
KVM
2131
U
Field collapse
µpc1488H
14-09-04
Sony
KVM
2131
U
No chan store
Dry joint pin 5 IC002 EEPROM
14-09-04
Toshiba
2131
DB
No col
CA03 100pf - pin 5 ICA10 micro to chassis leaky
14-09-04
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