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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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5 Blinks on Sony KV-32fs120 - "KV32FS120.pdf" (0/1) 6.9 MBytes yEnc
Hello members,
I am trying to troubleshoot a big 32 inch set by sony, model KV-32FS120, BA6 chassis. When I turn it on, the timer led blinks 5 times repeatedly (on occasion it blinks 5 then 3times). I have the board out of the set. I read somewhere to check D611 a bridge rectifier. I get 1.558v on the DC output that drops rapidly to 0v. On the input (AC) I read 6.4V dropping quickly to 0. I checked T604 (PIT) and get 6.34V dropping to 0 after a few seconds (pins 16,18). On D615, on the DC, when plugging in the mains, I geta gradual climb to 1.88V When I press the power button, the relay clicks and I get a max of 10.58V with a slow drop to 0. Checked T605, and read 123V. Checked D600 and read AC 7.6V with just the mains. When turning on the power it reads 123.5 V with an immediate drop to 0 (.22v) D600 on the output (DC) I read .004v (disconnected main), plug in main and got no change. Turn set on, and get max 63v min 0. I've attached a copy of the service manual. |
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