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Old 11-20-2012, 10:15 PM
bandersen's Avatar
bandersen bandersen is offline
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That got me sound , but no HV.
I powered down the set, did a little poking around and noticed the 17DQ6 HOT was really hot.

The components around the horizontal oscillator seem to be OK. Then, I checked the HOT circuit and found a 100 ohm resistor was measuring almost 200. I'll replace that and see if it makes a difference.

Does anyone have a copy of the Sams for a Zenith 15A25 chassis (388-4) ? The schematic I'm working with has limited voltage info. Thanks!
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Old 11-21-2012, 01:12 AM
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marty59 marty59 is offline
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I had to laugh when you mentioned "solder cups"! This must be a first for you to tackle some Zeniths. While those terminal strips may have been handy on a production line they don't make component replacement all that easy when there's multiples of leads at any one point and nearby wiring. Sometimes I will resort to some "J" hooks to minimize any connection/part damage in those cases. Plus, why heat up a nice solder joint if you don't have to.

They are handy though for exposure to test points on both sides of the chassis!
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