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#1
03-06-2017, 12:49 PM
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The VCR method should work. If the cap is rated high enough voltage, and placed in series with the injection probe you should be able to do both grids and plates. It will probably not be enough amplitude to drive the final video output.
You will at least know if it is the IF if video injection works. The analyst may have allowed you to isolate the issue down to a single stage or component...If you plan to have more than 10 TVs cross your bench I highly recommend getting a cheap B&K analyst. They do almost everything....I dare say I could get by %99 of TV repairs with just a DMM with an HV probe and an Analyst...They are that useful (if you understand signal injection/substitution based troubleshooting).
__________________
Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4 
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#2
03-06-2017, 07:22 PM
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Some of those 270pF micas are rated at 1000 volts, IIRC.
Make sure you didn't solder in a 500 volt replacement. You might of fried one. I love 630TS/8TS30 chassis. Never let me down. Last edited by M3-SRT8; 03-07-2017 at 05:55 AM.
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#3
03-06-2017, 07:42 PM
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M3-STR8 beat ne to it. Those micas should be 1000 volt rated caps.
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#4
03-06-2017, 08:53 PM
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Not sure where you guys are getting the 1000 volt rating for video IF coupling caps. There's no potential for those to short and the value is not that critical.
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