Thanks Eric.

I was kinda hoping that someone had the manual and I could get just the RX
board layout and parts list pages...  Even at $13, I'd rather not spend the
money for a one-time use - but it looks as if that's the way I'm going to
have to go.

Thanks and Happy New Year,
Mark - N9WYS

-----Original Message-----
From: Repeater-Builder@yahoogroups.com On Behalf Of Eric Lemmon

Mark,

You should order a copy of the R1225 service manual 6880905Z53 from Motorola
Parts while it is still in print.  It costs about $13, less than 1/3 the
cost to make a color copy of it.

The receiver front end has back-to-back diodes to provide some protection
against high voltages, but a lightning strike or a misconnection to a
transmitter can certainly fry them.

73, Eric Lemmon WB6FLY
 

-----Original Message-----
From: Repeater-Builder@yahoogroups.com On Behalf Of n9wys

A while back I posted an inquiry regarding an R1225 repeater I was looking
at for another. it was deaf as a fence post.

Well, today I had a chance to finally open this thing up and get a look-see.
(This took so long because I've been "ridding myself" of a number of kidney
stones.)  Anyway, the front end of the receiver is burnt to a crisp - my
best guess is that it got hit with strong incoming RF that was not blocked
by a "mis-tuned" duplexer. or the owner hooked the duplexer up backward. (I
think this was discussed previously.)

Anyway, in order to get this thing going, I am in need of the receive board
layout diagram and a parts list.  With the radio oriented so the RX antenna
connection is at the lower left, the components that are toasted are just
"above" the antenna connection.  (They all look like SMC capacitors, but
without the board layout and parts list, I can't be certain - nor can I
determine proper replacement values.)  

 

If anyone can help, I'd be much obliged! 

 

Thanks in advance!

Mark - N9WYS






 
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