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Old 6th Sep 2020, 4:01 pm   #22
Buzby123
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Join Date: Oct 2011
Location: Culcheth, Cheshire, UK.
Posts: 637
Default Re: I found it !. A very sorry looking MK14

Progress so far ...

Circuit boards and transformers removed from bottom of case, bottom case given a thorough scrub with foaming cleaner, and a rinse. Still stained, but stable. No flakey bits.

Refitted main transformer, checked 240v wiring, refitted combined PSU and DAC board. ( Why on earth did I put these two on the same board ?. And why did I do most of the wiring with bell wire and 4-core telephone cables ? )

Powered up. No smoke, sparks, buzzes or bangs, so it's probably OK. ( or totally dead !)

Smoothed supply is 12.8v, regulated is 4.96v, so the TO3 regulator thingy ( I can't remember the number ) is looking OK. I'll leave this running for a few hours, and move on to the case top.

First thing to tackle is the keyboard.

Question number 1, can these keytops be 'popped off' and refitted ?.

Cheers,

Buzby
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