Pull the control lead off of the amp, it is on the backplane, pin 3( a screw) on the top left corner. If you have voltage on the screw, your power board is OK, and the amp is the trouble, usually a bad control stage. if, with the control lead off, you have no voltage, check the chassis mounted transistor underneath the power set board, and the voltages on the 3 pin molex connector that powers the board . you should have one lead at ground, one at 10volts, one at 12 volts. ----- Original Message ----- From: georgiaskywarn To: [email protected] Sent: Thursday, October 30, 2008 12:05 PM Subject: [Repeater-Builder] Re: Micor PA schematic / Power Control Board
Ok. Let's look at this then. I have no power control from the Power Control Board. Can't turn it up or down. Tried 2 different boards as well. 1) Ideas? 2) Don't have the schematic in front of me....but can't find the caps on the schematics I have...listed from the below web site. Thanks, Robert --- In [email protected], "Gary Glaenzer" <[EMAIL PROTECTED]> wrote: > > "there is no 100 watt Micor amp" > > without qualifiers, that is a pretty broad statement............ > > Gary > > > ----- Original Message ----- > From: Captainlance > To: [email protected] > Sent: Thursday, October 30, 2008 10:11 AM > Subject: Re: [Repeater-Builder] Micor PA schematic / Power Control Board > > > > The PA is only factory rated at 78 watts...there is no 100 watt Micor amp. Some however, will do 100... > Lance N2HBA > ----- Original Message ----- > From: georgiaskywarn > To: [email protected] > Sent: Thursday, October 30, 2008 5:44 AM > Subject: [Repeater-Builder] Micor PA schematic / Power Control Board > > > Anybody have a schematic for the Micor 100watt PA? > > Also can only get about 78 watts out of this thing. Have changed out > the power control board...either board the power doesn't go up or > down. Ideas? Haven't tried this yet; > http://www.hamrepeater.org/micr_uhf.htm (bottom of the page to defeat > this portion) > but am going to try it tonight. > > Thanks, > Robert > KD4YDC > > > > > > ---------------------------------------------------------- -------- > > > > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.175 / Virus Database: 270.8.5/1755 - Release Date: 10/29/2008 5:27 PM > ------------------------------------------------------------------------------ No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.175 / Virus Database: 270.8.5/1755 - Release Date: 10/29/2008 5:27 PM
