Yet another Predicta Holiday restoration

[bandersen]

Once again I've agreed to restore someone a set for someone else. This time it's a Predicta Holiday. After speaking a while on the phone, we decided all he needed to send me was the chassis. He;s got a 21FDP4 replacement CRT with a good filament so we're keeping out fingers cross it has some life left. He gave the chassis to his shipping department with instructions to pack it very safely.

It arrived in a giant box. Inside I found a big shipping blanket wrapped around a smaller box and inside that the chassis.



Based on our phone conversation, I knew there were going to be some challenges.

First off, the HV cover and power switch - volume - contrast control are missing.


The owner volunteered to track down those parts and has a lead on some already. Meanwhile, I've started work on the chassis.

There's evidence of earlier repair attempts. For example, the fusistor (which is open) had a piece of solder wrapper around it, the thermistor was jumpered and I have a wire to nowhere.



Interestingly, the thermistor tests OK while the filament dropper is open. I bet someone noticed the tubes weren't lighting up and and went after the wrong part.

It also appears that someone clipped wires are parts so they could tip the main board on it's side. However, I can't really find any evidence that any work was done to it. Maybe they were just troubleshooting ?


The electrolytics have been replaced but otherwise it appears stock underneath.


On the positive side, the power supply choke, flyback and VOT ohm out good.

I decided the first order of business was to unmount the main board and get to restuffing it.