Hi Eric, I went back to the site today and pulled the receiver chasis. I'm more of a "SpectraTac" person myself so bare with me.
This receiver is a 19 inch rack mount voting MastrII receiver. The only number stamped on the rear of the chasis is 19D41754GG7. It has two optional boards installed, the CG decoder (dip switch version) and the status tone (1950hz) generator board. The 10v regulator board has a model number of 320918G1 REV B. There are two fuses on this board and I keep blowing fuse 801. (802 has never blown yet) Interesting enough, I looked inside of another identical (looking) receiver, and it's 10v regulator board only has one fuse on it. (but that receiver is fine so I ain't messin with it!) If I had to guess, I would say that the one fuse board is of older vintage than my 2 fuse board based on appearance only. (it just looks older, caps, etc.) With the receiver now on the bench I'm feeding it with 13.8 volts from my Astron VS12M. The ammeter goes up just over an amp and then fuse 801 blows. I removed the IFAS board from the chasis and the receiver now draws close to nothing, the 10v regulator measures 10.01, and no fuses blow. Put the IFAS board back in, fuse 801 blows again. So....I put in another IFAS board, and again my fuse 801 blows. Needless to say, I'm not sure what the problem is yet. I have no documentation so I can't help with LBI's. Not sure if I should replace the two caps on the 10v board (200uf at 18v and 400uf at 18v) because the 10 volts looks great when there is no IFAS board installed. So....I ponder my next move.... Adam N2ACF At 20:37 12/11/2007, you wrote: >Adam, > >I am struggling to understand which receiver you have, so that I can >understand where the fuse is in the circuit. I am fairly new to the GE >radio scene, so I hope you will indulge me a little. > >It will help me, and perhaps a few others, if you identify exactly what >model or combination radio receiver you have, and which LBI you are >referring to. As one who submits scanned LBIs to the GE Master Index, I >really want to know about any LBIs that are lacking, so that I can locate a >needed hard copy and fill that void. Thanks! > >73, Eric Lemmon WB6FLY > > >-----Original Message----- >From: Repeater-Builder@yahoogroups.com >[mailto:[EMAIL PROTECTED] On Behalf Of Adam C. Feuer >Sent: Tuesday, December 11, 2007 3:49 AM >To: repeater-builder@yahoogroups.com >Subject: [Repeater-Builder] GE MastrII Auxiliary Receiver > >Hello All, > >Yesterday, I had to go up the mountain to the repeater site because I >noticed that my GE voting receiver was not working. When I got there, >I found that one of the fuses had blown. I believe it was fuse 801 >and it had a 1amp glass fuse in it. > >Not being fully equipped to trouble shoot ( I actually left work due >to curiosity to see what was wrong) I simply replaced the fuse and >the receiver came back to life working perfectly. I checked it >periodically on my way back to work and home for the night and it was >working fine. > >I come to wake up this morning and the receiver is dead >again. Before I attempt to sneak out of work today, has anyone seen >this fuse blow multiple times in this 19inch rack mount receiver? >This particular receiver is being fed with an external 12volt source >(not a supply attached to the receiver) that feeds other 12volt >devices which are all working fine. I'm going to stop at the local >two way shop and see if I can find a diagram but until then, I was >wondering if anyone has had this trouble before. > >Thanks in advanced..... > >Adam N2ACF > > > > > > > > > > > >Yahoo! Groups Links > > >
