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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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A good friend gave me his old Mistu projection tv, so he could get a
new one. It has one small problem. The convergence is broken. I tested it with a scope and I thought the Signal generation was bad and I replaced it. That wasn't the problem. The output of the signal generator was a real flakey signel on the horizontal output. It remained after I replaced it. Someone told me to replace both the verical and Horizontal output amps on the convergence board. I was thinking maybe a Capacitor. Any Ideas? Thanks dan |
#2
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V11 chassis. Your thinking is correct, but scale it up by a factor of 100.
Expect 60-120 bad caps on all five major boards. Don't bother with it unless you are going to go through it thoroughly searching for leaky caps and high esr. Plan to repair some bad traces from corrosion and bad solder joints. Leonard Caillouet "Dan" wrote in message m... A good friend gave me his old Mistu projection tv, so he could get a new one. It has one small problem. The convergence is broken. I tested it with a scope and I thought the Signal generation was bad and I replaced it. That wasn't the problem. The output of the signal generator was a real flakey signel on the horizontal output. It remained after I replaced it. Someone told me to replace both the verical and Horizontal output amps on the convergence board. I was thinking maybe a Capacitor. Any Ideas? Thanks dan |
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