I'm working on a Sony KP-46S15 RPTV for a friend. Set would turn on for a second then the power light would blink and set would shut off. I found that C667 in the standby circuit on the power supply board was completely open, replaced that and the behavior changed somewhat. Now it still powers up for just a moment and shuts off, but the power light is not blinking. I found that if I bridge across the power relay, the set comes up and I can see video but the picture geometry is somewhat distorted. Checking the power supply reveals that all outputs are low. I took the PSU board home and found a few more marginal capacitors but nothing too bad. Anyone run into this before? I'm not very familiar with Sony boards.
Sony KP-46S15
Jan 22, 2008
2 Replies
Picture geometry of course suggests a convergence issue, but this would not normally prevent the set from firing up; more likely just something else to fix once you get it running.
Mark Z.
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