RealMarkDeneen Posted February 23 Author Share Posted February 23 12 minutes ago, tigerwoodKhorns said: Mark, If there are any other common failures can you post them? Parts and solder are cheap and I think that many might want to just go ahead and do the replacements proactively if they are handy. I have a Tercel 1 and if there anything that I should beef up I'd rather do it now. Thanks. There were really FOUR consistent failures. 1) The above mentioned Bridge Rectifier in either the BBX or Peach 2) The loosening up of the LM350 regulator on BBX and Peach. This is what would happen: The normal heat in the unit would soften the four NYLON standoffs that I used to hold the LM350 and it's 2" x 2" Heatsink to the PCB. They nylon would shrink down, the screws would loosen slightly, and the voltage would drop from 6.3 to 5, then 4 then the unit would stop working. One simple fix was to retighten the four screws. The better fix was to remove the nylon spacers and replace with aluminum and retighten. 3) The remotes in either of the ones that had remotes. The remote failure was simply this: The receptor sat behind a simple hole in the front panel, and it would get tweaked away from lining up with the hole. 4) The RCA jacks on BBX and Peach would get tweaked off the PCB. In many ways, this was the more regretful part of what I did. I wanted to hold the cost of the unit to well under $2 grand. And wiring 20 panel jacks was going to add a lot of labor. I saw these PCB mount jacks and an opportunity to save hours of labor and I designed it so there was no "wire" and used relays and a PC mount selector. It was all VERY LABOR SAVING, but just too fragile for reality. Big mistake. Now, those jacks are unobtainable. The solution is to drill 20 holes in the back panel, mount panale mount jacks, wire them into the PCB holes. Takes an afternoon to do it, but makes the unit bulletproof. I can't recall any repairs on Merins, and maybe a few minor ones on Tercel. Nothing "chronic" on either of those. The second version of Tercel was REALLY ROBUST. I don't think I ever saw one back for repair. pCAT had a few troubles, but not too bad. The welding on the chassis covers was shite. The fabricator did a crap welding job and the covers came apart in shipping. And on maybe two units a 2W resistor in the PSU burnt out. And the big star ground with big copper wires came loose from it's BOLT that kept it tied to the chassis on one unit. The biggest problem was shipping those things. Nearly impossible. Cheers! Mark 1 Quote Link to comment Share on other sites More sharing options...
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