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Old 27th April 2004, 08:55 AM   #1
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Default US bought car audio FM not working in India

Hi,
I had bought a sony car audio systsm cdx-mp40, the problem is that the system is not able to catch india FM frequencies which are even like 91. By default it moves by .2 and stops only at odd frequencies like 91.1 or 90.9 and skips all even frequencies.
Is there a solution to it.

TIA
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Old 19th May 2004, 10:27 AM   #2
gjo is offline gjo  India
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Hi

I too have the same problem with my Kenwood unit which I bought in the US last year, so I cant tune in to Radio City. If you find a solution for it please let me know too.

Thanks

George
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Old 19th May 2004, 10:45 AM   #3
Magura is offline Magura  Denmark
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Isnt it a matter of the RDS?? Ive seen RDS over ruling the manual search before.

Magura
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Old 19th May 2004, 11:24 AM   #4
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I thought it was that the USA used a different channel spacing from Europe (and India as well I guess), so that the synthesiser tunes to the wrong frequencies.

Perhaps there is some internal switch to set the oscillator channel spacing?
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Old 19th May 2004, 11:30 AM   #5
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Quote:
Perhaps there is some internal switch to set the oscillator channel spacing?
Or solder bridges or whatever. Chances are big that they only build one basic model that is esily adopted for different countries. It may also be some firmware in a microcontroller, that feeds the synthesizer chip with frequency info (which is usually done via a serial interface nowadays).

Have you got a schematic of this car radio ?

Regards

Charles
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Old 19th May 2004, 11:55 AM   #6
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This used to be a problem in the UK with the radios in grey-imported Japanese cars and there was an inexpensive plug-in adaptor available that provided the necessary frequency shift.

Might have to search the internet for this although I agree it's likely that in most cases there is a 'hidden' option on the radios.
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Old 19th May 2004, 04:29 PM   #7
gjo is offline gjo  India
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I guess youre right-they must build asingle model. I just got asimple manual, not detailed schematics. However let em check on the web if there is any Kenwood site that gives this info.

George
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Old 20th May 2004, 05:55 PM   #8
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go to www.melting-pot.com They have what you want.
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