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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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#1
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Hi All,
I Have a 9" portable ac/dc Sony KV-9PT60 which has been taking longer and longer to first display the picture when turned on. For the last year it was taking about 15 seconds (acceptable), but just now has started taking 30 minutes. The sound comes on instantly, and picture when it does show (after warming up presumably) is perfect. Turn it off after warming, and it comes on almost instantly. It is used on AC at room temperature. Any help is greatly appreciated. Neely |
#2
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Ok First pull the cabinet apart get out that
DVM and start doing some tests, also check the filters in the SMPS section. Not to mention bad solder connections. kip wrote in message oups.com... Hi All, I Have a 9" portable ac/dc Sony KV-9PT60 which has been taking longer and longer to first display the picture when turned on. For the last year it was taking about 15 seconds (acceptable), but just now has started taking 30 minutes. The sound comes on instantly, and picture when it does show (after warming up presumably) is perfect. Turn it off after warming, and it comes on almost instantly. It is used on AC at room temperature. Any help is greatly appreciated. Neely |
#3
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Check in the power supply section, and in the horizontal scan amplifier
section for capacitors going high in ESR. This is a known issue in these sets. -- JANA _____ wrote in message oups.com... Hi All, I Have a 9" portable ac/dc Sony KV-9PT60 which has been taking longer and longer to first display the picture when turned on. For the last year it was taking about 15 seconds (acceptable), but just now has started taking 30 minutes. The sound comes on instantly, and picture when it does show (after warming up presumably) is perfect. Turn it off after warming, and it comes on almost instantly. It is used on AC at room temperature. Any help is greatly appreciated. Neely |
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