sfbp Posted May 31, 2010 Report Share Posted May 31, 2010 Sorry this is a bit off topic, but I am lucky enough to possess the MDX-CA790X, one of the relatively few car head units that plays back MDLP. The problem is that this unit was (I think) never sold here, and there appears to be no way to fix the digital tuning to the North American defaults. FM, there's no problem, there are channels more finely granular on the unit than what's used here. But AM is set to change in 9Khz steps rather than 10Khz. This means that more often than not, the channel setting is "off". It's not terminal, just mildly annoying. 1. Does anyone have a service manual for the MDX-CA790X? 2. Is there on any Sony head unit, a code (key or remote) that somehow enables the change? I'm sure I saw it on one model in the manual but cannot recall which one. Perhaps a code from one unit will work on other models. It's no big deal but it bothers me from time to time, and the board seems very quiet at the moment, maybe we need something to toss around Stephen Quote Link to comment Share on other sites More sharing options...
chiefchimpy Posted June 27, 2011 Report Share Posted June 27, 2011 I have exactly the same problem with a Aiwa bookshelf CD/MD unit, and even with a manual I was never able to find a way to change it from the Japanese standard to N. American. Quote Link to comment Share on other sites More sharing options...
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