I finally figured it out. Just on a fluke I changed the 2 "time bomb" capacitors on the head and Bingo! It goes into the service mode every time even on the remote cable. I am not sure why, but I will take it! I had no other symptoms, and the VFD was bright and clear so I just assumed they...

I have a 900 Mhz 300 watt Nucleus paging transmitter that I would like to use on 927 Mhz repeater service. Do any of you have the pin out information for the power supplies? They were missing from the transmitter when I got it and I need to supply them from another source. I believe it needs +24, +1...

"...the home button is not programmable..." --------------------------------------------------- Who said anything about programming the home button??? What I suggested you check is the access to front panel tests which is set in the SERVICE menu. If those settings are "Disabled"...

"...the home button is not programmable..." --------------------------------------------------- Who said anything about programming the home button??? What I suggested you check is the access to front panel tests which is set in the SERVICE menu. If those settings are "Disabled"...

Just out of curiosity, you might check the front panel settings in the RSS. From the MAIN MENU > F2 SERVICE > F8 SERVICE AIDS > FRONT PANEL AUTHORIZATION I checked that, the home button is not programmable. Only the top row and the keypad can be assigned. The home button beeps normally when pressed...

I have a 900 Mhz Spectra in my truck but I can not get the service menue to display. I hit the home button 5 timed during the SELF CHK display and it will not go into the SERVICE menue? The head works normally and all functions seem to work, the home button beeps every press but it will not go into ...

Do any of you have a copy of the schematic for the CRT high voltage power supply in a R-2001C Motorola service monitor? Mine has died and it needs some attention but I don't have a service manual for it.

Thanks,
Jack
K6YC

Jack, The PURC5000, 300 watt manual consists of the regular PURC5000, 1 to 150 watt manual, 68P81064E05, and the 300 watt supplement, 68P06907W44. The supplement covers the Q2934A simulcast models and the Q2935A non-simulcast models as well as a couple other, more obscure versions. The basic manual...

I have a 300 watt 900 MHz PURC transmitter that has a problem. When I key it up it only puts out 90 watts and the full PA light briefly lights and then goes out. The drive seems normal so I assume there is something in the PA that is toast. It is a Model Q2934A and of course the service manual from ...

It turned out to be a Maxtrac 800 MHz LTR radio. I ended up blanking the board and installing conventional firmware and have converted it to a 902 MHz receiver. I was not sure about talkaround but it works fine and it has excellent sensitivity, I used up the last pair of 900 MHz filters I had and ap...

I have a 900 MHz Maxtrac that I can not read with any software I have including the Maxtrac Lab. It is a model M07UGQ6FU1AN with firmware version HLN9643D and a 16 pin accessory plug. Do any of you know what version of RSS will read and program this radio?

Thanks,
Jack

I have a PURC 5000 with the TLN2419A super gee whiz metering panel but a couple of the switches are bad and I don't have a manual to look up the part numbers. The bad switches are labled D1 and D2 on the lower right front panel. They are made by C&K and have the number 7101 stamped on them. I we...

I picked up a PURC5000 to use on a 900 MHz repeater and I have a programming question. The model number is C85JLB-1106A and my question is, can it be programmed to transmit PL? I need to find someone with a suitcase programmer to help me out, but I have no idea about the TX PL.

Thanks,
Jack
K6YC

I just checked it and it is not linear, using various hand held radios here are some of the results: If I transmit on 927.2 MHz the Spectrum analyzer says it is on 925.3 MHz a -1.9 MHz error. If I transmit on 445.0 Mhz the analyzer shows 448.2 MHz or a -3.2 MHz error. When I input 145.0 MHz the anal...

I have a Motorola R2001A service monitor that is having a synthesizer problem. It generates a signal and the spectrum analyzer works but everything is on the wrong frequency. It seems to move in even numbered increments bit not is odd numbers? I have a schematic of the RF systhesizer but have no ide...