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Sony tv there is sound but no picture only horizontal line

Hey buddy! i am a newbie technician i repair a sony tv model no.kv-19apr2, it has sound but no picture only horizontal line. i don'thave service manual, i have suspected that the problem might be abroken vertical IC, supply voltage at vertical section a diode or anopen resistor maybe. i look this IC number at the ECG replacement guidefor me to know what is the supply voltage for this IC and what pin buti didn't find it in there. so pls. help me, what more i need to checkand test before i replace the this vertical IC...

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Hi there, one horizontal line means a vertical section prob., check some resistor with low value and a defective diode, possible ic part is defective. do some test and check up. ty

Posted on Feb 25, 2008

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