Saturday, November 30, 2013

SAMSUNG 14" COLOR CRT TV REPAIR #1

IMPORTANT: WHILE WORKING WITH TV OR ANY CIRCUIT WITH HIGH VOLTAGES IT IS WISE TO USE AN  ISOLATION TRANSFORMER FOR YOUR SAFETY! (I need to buy one soon!!)
 
TYPE: KS1A14E4
MODEL: CZ-14E4V

SYMPTOM: When the TV is switched ON, the standby led (GREEN) turns ON for a few seconds and then automatically turns OFF.

FAULT DIAGNOSIS: 
- the problem seems to be in the smps section
- checked the section thoroughly, found a leaky cap 160V, 47uF on the secondary side of the power supply in the B+ line
- replaced the cap with a new one and BINGO!

here's the naughty one-



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