Realistic TRC-57 Schematic ?

[kopcicle]

Anyone? Sure I found evilpay and other pay sites but thought I'd ask. CBT hat the manual but no hieroglyphics.

Thank You ...

 

[LeapFrog]

wwwDOTcbtricks.com/radios//realistic/trc_57/graphics/realistic_trc_57_sm.pdf
EDIT: I've never seen a FSM without an electrical schematic, this is a first for me!

 

[kopcicle]

Yeah , w/o schematic unfortunately ....
I have all that hit around it but it's a transitional radio . after crystal but prior to LSI PLL chips .
Truly a strange beastie all its own.

 

[LeapFrog]

Yeah , w/o schematic unfortunately ....
I have all that hit around it but it's a transitional radio . after crystal but prior to LSI PLL chips .
Truly a strange beastie all its own.

http://www.vkham.com/Info/manuals/d858/Gladiator schematic 1.jpg
http://www.vkham.com/Info/manuals/d858/Gladiator PLL Schematic.jpg

It's a far cry, but maybe these are similar?
Sorry mate, that really is an odd one AFAIK.
(maybe this attached PDF is different)

Edit: Sam's CB-102 may have a more detailed schematic
http://www.ebay.com/itm/SAMS-PHOTOF...339452?hash=item212bd5993c:g:CHIAAOSwPM9ZiNfJ

 

[kopcicle]

The manual is a outstanding upgrade from the one I have . Thank You !!!
The wiring map alone is worth it .
Still looking for a Schematic...
@LeapFrog Thank You again!

 

[Cozy]

You've got it

 

[unit_399]

The reason there is no schematic in the service manual is because it was printed on a large loose foldout paper separate from the manual itself. I pulled out Sams # 102, and the TRC 57 schematic in it is 9 pages long. I'll scan it and will post it here soon. When I post it, I am going to omit the power supply and the clock schematics. The supply is pretty much standard Uniden, and if your clock isn't working you'd be better off to trash it and put a freq counter in its place. Check back here in a day or so. 73s.

- 399

 

[kopcicle]

^^^^ Appreciated as I think this one is going to stay here

 

[nomadradio]

A frequency display for this one will be tricky. This radio does the same 2.5 kHz jump upwards in VCO frequency that the later 40-channel TRC-457 and similar uPD858 radios do.

If you set the counter to read correctly in AM receive, it will read 2.5 kHz high when you transmit.

And in USB mode.

Will read 2.5 kHz low on LSB.

The chart at the bottom of page 12 in the service manual shows this.

73

 

[unit_399]

Kopcicle -

Sent the schematics to your email. Enjoy.73s.

- 399

 

[kopcicle]

-399
Recv'd and Thank You

-7177

 

[sonnyb]

I know this very old post but I am trying.Unit_399 would you still have the schematic for the TRC 57? Thanks.

 

[kopcicle]

 

[sunbulls]

I did a little enhancement on those scans to eliminate the background bleed-through plus added more black to the gray scale. It made the a little easier, at least for my eyes to read. I also wanted these for my archive and I thought you may like these a little better too.

 

[kopcicle]