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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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Please help. Retrace lines on RCA F27185
I have an RCA model F27185DW (service number F27185DWF01) and it has
bright retrace lines and the picture is still there but badly degraded. I had to turn the brightness and contrast up to get a viewable picture. BTW, I see no chassis number on it. Does someone know what chassis is in this set? Anyway, has anyone had this problem before and/or knows if it is a common problem that knows the fix for it? Or at least what to look for? Thanks a bunch. |
#2
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G2 supply, Video bias, check the voltages applied to the CRT socket with the
set in operation. do this both with the socket connected to the CRT and with it removed from the crt. Be advised, if you do not know the SAFETY requirements then do not attempt these measurements. In that case you should have it professionally serviced. FWIW: the voltages should indicate what current and signals are being applied to the CRT. BTW: somewhere on the chassis there is a white tag indicting the complete 10 digit serial number and the CTC_chassis number. Post the diagnostic measurements you have indeed completed for further information. "Bob" wrote in message ... I have an RCA model F27185DW (service number F27185DWF01) and it has bright retrace lines and the picture is still there but badly degraded. I had to turn the brightness and contrast up to get a viewable picture. BTW, I see no chassis number on it. Does someone know what chassis is in this set? Anyway, has anyone had this problem before and/or knows if it is a common problem that knows the fix for it? Or at least what to look for? Thanks a bunch. |
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