Quote:
Originally Posted by klofback
I can help you along with this, Iv'e done many of them. There are 2
versions of the KV1722. One with a conventional power supply and one with a chopper power supply. Which one do you have? See SCC chassis number on
tag upper left CRT shield. Make sure you get Sony GCS thyristors, ECG, NTE
wont do. SG613 is the newer version of the SG608 and may be easier to find.
If you dont use a systematic method of troubleshooting, you will destroy those
expensive thyristers immediately. The chopper version has 2 of them. I have some excellent troubleshooting documents and some I developed myself
to prevent this. Electrolylitics.. All of them in the power supply and any that rectify scan derived sources should be all you need to do at this time.
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Thomas has the early chopper version. I worked at SFS when these sets were new. Absolutely the hardest sets even back then ! Labor was $125 so an SG job ran $175 +. You could buy a good winter car for that. No shops
would touch the.
73 Zeno
