Resurrecting an older thread, but with pertinent info for FR-101 owners:
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I recently bought an FR-101D (S/N 8H210225) from the auction site as a restoration project. The receiver has red LEDs in the display. Some years ago I'd gotten a late model display unit and bezel from a parts seller with the aim to convert my FR-101S to a D but this one just happened along.
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After cleaning and inspection I powered it up to check out the display. Bear in mind that a number of standard range crystals had been swapped for others of various coverage segments so I had no idea what to expect from the display. On most ranges it's reading 500KHz low. I'm assuming this has to do with a range selection line (0/+500) so that's to be investigated. I wanted to make sure someone hadn't fooled with the VFO so I swapped my other red display unit in.
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With that one...15 and 20M track correctly. The others...either show "96.000.0", "4.000.0", "1.000.0" or are 500KHz low. Next step was to physically examine the counter boards and check for evidence of funny business. What I found are two distinctly different PCBs. I'm not sure how either compare to the schematic posted earlier in thread but comparison and analysis is the next step. Then diagnosis and repair.
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The original counter has S/N 210142 affixed and the spare, 200350. I took pics of both sides of the boards as well as a rear shot with the S/N tags. Will upload them if anyone's interested, and update this thread with comparisons from the schematics.
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73 - Fred, N8YX
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