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#16
04-11-2017, 10:35 PM
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The Philco modular sets were a breeze to repair; getting modules was a problem for a while, as PTS chose to incorporate mods from Philco, not only for the PTS stock, but also for Philco-Ford rotating stock. We had a few months where we had to fix the modules, not an easy task, as getting to the module test points was difficult. We ended up soldering short wires to some test points to get easier access. Most repairs were transistors. Looking at a newly-repaired PTS module gave clues to the "top 10" problems - fresh solder/new components were noted and annotated on the schematic, to aid in future repairs.
The horizontal and vertical osc modules went the most, followed by the Chroma demod/amp board. For us, power supplies also got eaten every other lighning storm. I still have a bunch of their monthly service notes - useless now, as I've not seen a modular (or any other Philco-Ford color) set since 1989.
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Brian USN RET 22YRS (Avionics/Cal) CET-Consumer Repair and Avionics ('88) "Capacitor Cosmetologist since '79" When fuses go to work, they quit! 
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