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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: 5
Samsung
CI6229 U88MT1
PARTIAL OR COMPLETE FIELD COLLAPSE , REPLACE IC301
ADD 1N4148 FROM PIN 9 IC301 TO PIN 3 IC 301 ANODE TO PIN 3 ADD 1N4148 FROM PIN 3 IC301 , ANODE TO GROUND ADD 12pf CERAMIC FR
14-09-04
Samsung
CI6230 U88MT1
ODD VIDEO - NO COLOUR
CHECK 12v SUPPLY FROM REG.
14-09-04
Samsung
CI6230 U88MT1
PARTIAL OR COMPLETE FIELD COLLAPSE , REPLACE IC301
ADD 1N4148 FROM PIN 9 IC301 TO PIN 3 IC 301 ANODE TO PIN 3 ADD 1N4148 FROM PIN 3 IC301 , ANODE TO GROUND ADD 12pf CERAMIC FR
14-09-04
Samsung
CI6230 U88MT1
This set was dead , with just a highpitched squeal
C416 ( 2.2 , uF , 250V ) was short-circuit. It decouples the supply to the line output stage.
14-09-04
Samsung
U88MT-1
No col
No 5v at pin 1&9 IC502 TDA4661 del line chip. D503 5v zener leaky
14-09-04
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