[Milsurplus] PRC-74 newbie questions

[WA5CAB at cs.com]

Bob,

TM 11-5820-590-35-1 covers AN/PRC-74B and C.  If your radio is part of 
AN/PRC-74, you need the -35.  The -35-1 will do you more harm than good.

In a message dated 9/20/2009 3:30:04 PM Central Daylight Time, 
ranickel at comcast.net writes: 
> A couple of PRC-74s turned up at the Peoria IL hamfest this past weekend 
> at a reasonable price (w/o battery pack or accessories), so a buddy and 
> I became new owners.  So far I've determined that mine is not working, 
> but am hoping the problems are not too serious:
> 
> 1.  Someone had already removed the battery connector and spliced on 
> wires for 12 VDC, but there is no audio nor any meter indication when 
> power is switched on.  The radios came from an estate and were thought 
> to be working, but obviously this one isn't.  Both fuses are good.
> 
> 2.  I'm anxious to dig in, but to troubleshoot it  I really need the 
> manual that includes schematics - can anyone provide  TM-5820-590-35-1 
> in electronic form?
> 
> 3.  The Mhz selector switch will not mechanically go below 9 mhz.  It 
> can be set to 11, 10, and 9 but hits a mechanical stop between 9 and 8 
> mhz.  I can see a mechanism behind the panel - is the configuration of 
> this mechanism documented in the above TM?
> 

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480