RCA CTC169 semi-fixed, but now a jitter issue. Appreciate any help
Hello,
I'm not a TV expert unfortunately, but I do know some electronics from my job. I would be grateful to anybody that could think of what could be causing the trouble below; My RCA 169PEB chassis went down due to a blown H.O.T. and a burned HV splitter. I ordered the repair kit (CTC169-KIT-PTV from Tritronics) and replaced the parts. It powers on now and B+ is about 142V. I get an image and sound, but the screen seems to vibrate and horizontal lines are seen. Also, the sound seemed to mute itself after set being turned on for a few minutes. comes back on when I turn volume up or down. I thought perhaps an experienced technician has seen this before and could point me in the right direction. Thanks Thad |
RCA CTC169 semi-fixed, but now a jitter issue. Appreciate any help
"tem00" wrote in message oups.com... Hello, I'm not a TV expert unfortunately, but I do know some electronics from my job. I would be grateful to anybody that could think of what could be causing the trouble below; My RCA 169PEB chassis went down due to a blown H.O.T. and a burned HV splitter. I ordered the repair kit (CTC169-KIT-PTV from Tritronics) and replaced the parts. It powers on now and B+ is about 142V. I get an image and sound, but the screen seems to vibrate and horizontal lines are seen. Also, the sound seemed to mute itself after set being turned on for a few minutes. comes back on when I turn volume up or down. I thought perhaps an experienced technician has seen this before and could point me in the right direction. Thanks Thad Go over the solder joints - they may have caused or contributed to the original failure! If it was made with lead free solder, the joints will all look "dry" anyway - look for a sort of grey/brown ring round any of the solder fillets (as well as obviously cracked ones!). |
RCA CTC169 semi-fixed, but now a jitter issue. Appreciate any help
On Mon, 31 Jul 2006 19:19:34 GMT, "ian field"
wrote: "tem00" wrote in message roups.com... Hello, I'm not a TV expert unfortunately, but I do know some electronics from my job. I would be grateful to anybody that could think of what could be causing the trouble below; My RCA 169PEB chassis went down due to a blown H.O.T. and a burned HV splitter. I ordered the repair kit (CTC169-KIT-PTV from Tritronics) and replaced the parts. It powers on now and B+ is about 142V. I get an image and sound, but the screen seems to vibrate and horizontal lines are seen. Also, the sound seemed to mute itself after set being turned on for a few minutes. comes back on when I turn volume up or down. I thought perhaps an experienced technician has seen this before and could point me in the right direction. Thanks Thad Go over the solder joints - they may have caused or contributed to the original failure! If it was made with lead free solder, the joints will all look "dry" anyway - look for a sort of grey/brown ring round any of the solder fillets (as well as obviously cracked ones!). Yes and no. Stuff made after 2004 started to use no-lead solder. Checking and resoldering joints still applies to anything. Cheers, Wizard |
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