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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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RCA F36669 Has Sound, Picture Only Sometimes Works
Set was completely dead, replaced voltage regulator and powered it up sound
works but no picture, after 5 minutes picture came up, worked for two days and is now only working after the set has been in the on position for several hours (it seems to be taking longer and longer) this isnt just the abscence of a picture but the abscence of voltage to the back of the crt and the "coil" or whatever the correct term is. im not sure but this set appears to have a split type of power supply. with two vr's? one for low voltage audio and tuner components and one for high voltage crt components (this would probably explain why the sound is always working). the customer says before the set went dead the last time she had to wait for a picture as well. if anybody can help i would greatly appreciate it |
#2
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Why dont you remove the choke just in front of the HOT
clean the holes and the choke wires then reinstall. That should fix you up ...99% of the time. kip |
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