Z-4000 Repair

lehighlineOGR Forum Member DIGITAL SUBSCRIBER

I'm continuing to work on my "semi-dead" line. Next up: A first generation Z-4000. I've had this transformer since it was issued. The fan is now making that wonderful groaning noise off and on, indicating its about to die. So I'm planning to open the case and replace it. I've found several threads on this Forum for doing this, and I have the tools. So far so good.

Second issue: Both variable post show voltage even when the handles are all the way down. Typically 2.3-2.5v. I checked with an independent meter, and the values are correct, as I see the same numbers at the outputs. I usually knock the voltage back to ~1v by adding a bulb across the terminals. But since I'm opening the case for the fan, is there any adjustment I can make to re-zero the outputs? I seems to recall that there is, but the thread was so long ago I cannot find it.

Any help would be appreciated.

Chris

LVHR

12/28/1512:57 PM

Original Post

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