Re: Circuit diagram for VR500

Ken,

Sounds like you really ought to consider buying a service manual.  
They aren't that expensive, and, considering the information you are 
seeking, should be well worth it.  I'm not sure I could adequately 
answer your questions, and, frankly, having paid for the manual 
myself, I'm not inclined to scan it and distribute it.  You can order 
a service manual at 714-827-7600.

 - Doug


--- In [email protected], "Carrigan, Ken" <kcarrigan@a...> wrote:
> Doug,
> Nice to know!  Wondering if you have a diagram for RF input 
circuit, where the RF signal amplitude (strength) is calculated and 
displayed. I'd like to pick that off and get a better reading/display 
if signal strength. Wondering also where the X10 attenuator is 
switched in too.
>  
> Any information would be great!
> Thanks,
> Ken Carrigan
> 
> ________________________________
> 
> From: [email protected] on behalf of Doug W.
> Sent: Tue 6/28/2005 6:19 PM
> To: [email protected]
> Subject: [VR-500] Re: Circuit diagram for VR500
> 
> 
> 
> The FM Detector IC is the TA31136FN.  Pin 9 is the AF output.  A
> datasheet can be found here:
> http://www.alldatasheet.co.kr/datasheet-
pdf/view/TOSHIBA/TA31136.html
> 
> Hope this helps.  If not, I have a service manual and can look up 
the
> information you need.
> 
>  - Doug
> 
> 
> --- In [email protected], "Bob Warriner" <Bob@W...> wrote:
> > Hi Group, although I have been a member for quite a while, this is
> my
> > first post.
> > Has anyone got a circuit diagram of the VR500? I need to identify
> the
> > source of the un-processed audio for a discriminator tap to use
> with
> > ShipPlotter etc, or failing that, does anyone have knowledge of 
the
> > chip type number and the pin for the output?
> > Rgds Bob
> 
> 
> 
> 
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