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Got a problem maybe someone can shed a little light on. This digital FM/AM tuner is scanning the old JDM FM band 76-90, not USA or UK. However, the model number plate on the case shows the AC voltage as 120V which is USA , not 100V Japan. Further, inside there are two trimmers side by side, there are position identifiers for USA and UK on the board, they are set to the USA position. Is this a bad chip issue? Can it be that there is some combo of buttons that changes the bandwidth from JDM to USA that have been inadvertently pushed? There don't appear to be any switches inside on any boards nor any reference on the tuner/tuner board to band-JDM/USA. Thanks much
Yes, this is a PLL (Phase-Locked loop) based tuner-
Thats the problem, it only seems to scan JDM, I cant "listen" here in
USA. I am not a radio guy, just trying to make this receiver work as it's in flawless cosmetic condition, all buttons work, and everything lights up. Any basic info on how this receiver works and what I should check for would be appreciated. Is it a chip problem? It just scans 76.1 to 89.9 and won't lock onto anything.
There is most probably either some jumpers or a module that needs to be engaged or defeated -
a schematic would be most helpful.
Unfortunately - my quick search yielded nothing.
In the OP you mentioned an EU module - can you inspect to see if it is engaged?
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