Miata Mailing List: January 1993, Message #74
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   From: (none)
Subject: Re: Radio won't turn on 
   Date: (none)


My radio just started having this same problem.  I noticed that once 
I turned the heater on, the radio works. At first I suspected a wiring problem
but, like you after watching it for a couple weekends, I decided it was 
a software bug. (or, perhaps the debounce circuitry...)

I was about to bring it to the dealer when the radio started working.
I moved the car up to the great white north this summer and only get to
visit it a couple times a month.  (BTW, James, where's the nearest and best 
dealer in the MHC area?)  So, mine sits idle for a couple weeks at a time 
before I get to take the top down and put the radio on....

Anyone else with this problem?
/Ed Guy

> Date:    Sun, 17 Jan 1993 01:00:33 -0500
> From:    sieler@shell.portal.com (Stan Sieler)
> To:      miata-old@jhunix.hcf.jhu.edu
> Subject: Radio won't turn on

> Hi...has anyone seen this problem with the stock radio:
> 
> When the car is cold, the radio won't turn on.  (The clock has
> power).  If I push a tape in, the unit sucks it in, but doesn't 
> play it.  The eject button works, ejecting the tape.
> 
> Pushing the ON button has no effect.
> 
> After 5 to 30 minutes, pushing the ON button results in a *very*
> brief display on the LCD showing "AM" and the radio frequency (as if
> the radio was turning on), and then it is back to off.  (By very
> brief, I mean less than 1/10 second or so.)
> 
> After 10 to 40 minutes, pushing the ON button works, and continues
> to work nicely for the rest of the drive.
> 
> If the radio was left ON when I turn off the ignition and remove the
> key, it is off when I start up again.
> 
> I think the problem is in the "chip" (logic? microcontroller?), and not
> the ON-button.  My dealer has never seen the problem, and offered to
> replace the radio for $350 (not clear if labor was included).  The dealer
> has never heard of computerized problem-databases, alas.
> 
> thanks,
> 
> stan sieler
> SSMIATA
> sieler@allegro.com
>  
> 
> 

==========================================================================
Ed Guy                                        mpgs::guy
Digital Equipment Corporation                 guy@shr.dec.com
333 South Street  SHR1-3/E19                  Tel: (508)841-3051
Shrewsbury, MA  01545                         FAX: (508)841-3738