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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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Philips tvs
Have gotten several Philips tvs, ranging from 19 to 27 inch with the same
problem, cutting off after a short time. Bplus is fine, no fore warning, everything looking good, they just cut off. seen anything like this? Most appreciated. The sets are all from 2 to 4 years old, sorry dont have model or chassis numbers handy. |
#2
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Gerald Mielke:
When you say that the "Bplus is fine"...... does that mean that it is holding regulation and the proper voltage when the AC line voltage is varied +/- 10% with a variac? You may want to check solder connections near and around the high heat producing parts and especially including the flyback, h-drive xfmr, power resistors, power chips, etc. By the way, you really need to post the model numbers and post some more technical troubleshooting results..... dust off your DMM and your Scope and do some basic troubleshooting and visual inspection at your end.. -- Best Regards, Daniel Sofie Electronics Supply & Repair - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - "Gerald Mielke" wrote in message ... Have gotten several Philips tvs, ranging from 19 to 27 inch with the same problem, cutting off after a short time. Bplus is fine, no fore warning, everything looking good, they just cut off. seen anything like this? Most appreciated. The sets are all from 2 to 4 years old, sorry dont have model or chassis numbers handy. |
#3
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"Gerald Mielke" wrote in message ...
Have gotten several Philips tvs, ranging from 19 to 27 inch with the same problem, cutting off after a short time. Bplus is fine, no fore warning, everything looking good, they just cut off. seen anything like this? Most appreciated. The sets are all from 2 to 4 years old, sorry dont have model or chassis numbers handy. So get off your arse and post the numbers. Or would you like someone to come and help finding that information as well? |
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