Have you swapped the 10 volt regulator board with a known good one? It has happened that something can short a line on the back plain...this could be a key line to the 10 volt board.
My point to having you check the locations were to find out if something off the board was pulling one of the key inputs low or if the board has a shorted keying transistor. If one of the lines are low, then follow it completely to where ever it goes, and check it for a short to ground. Something is pulled to ground to get the RED LED to turn on, or Q5 or Q6...more likely, Q6 may be shorted. If none of the inputs are pulled low then the problem is on the regulator board. Otherwise it is an input to the board. Now, there's nothing difficult about this, it's simple DC troubleshooting. You should be able to track it down in a little while when all other possabilities have been exausted then what ever is left must be the truth. Fred shouldn't have to come to help with this you should be able to track it down...You'll remember it better next time, and you will learn some trouble shooting tricks from it. We've all been here and survived it... so have fun. At least in your case it's not some police, or fire chief breatheing down your neck wanting his radio fixed now. 73 AC0Y --- In [email protected], "w4wsm" <[EMAIL PROTECTED]> wrote: > > If the 10volt board is fine can it still be any of these? I've swapped > ALL the cards with known good ones. > > OK, are you talking about the cage itself keying it? What other board > is there when all the cards but the 10v is pulled? > > I know it's hard to do this without being here...hope to get Fred out > here soon to see what magic he can work:-) > > Ben > > > --- In [email protected], "Coy Hilton" <ac0y8@> wrote: > > > > If you have a schematic of the 10V regulator board and or the back > > plain if the card cage check in this order. > > 1. On the back plain Pin B12 of the 10V regulator board connector. > > 2. On the back plain Pin D4 of the 10V regulator board connector. > > 3. On the back plain Pin A14 of the 10V regulator board connector. > > 4. On the back plain Pin D3 of the 10V regulator board connector. > > 5. On the back plain Pin A12 of the 10V regulator board connector. > > IF any of these are Low....0 or less than a volt or so then the key > > request is comming from off the board to the Keying circuit on the > > regulator board. If none of these are pulled low then it could be > > either Q5 or Q6 on the regulator board ....most likely Q6 will be > > shorted it actually Keys the Tx and turns on the LED. THe schematic > > for this board is on the Repeater-builders website where the LBIs > > are posted. Good luck! > > > > > > AC0Y > > > > --- In [email protected], "w4wsm" <b.runner@> > > wrote: > > > > > > Repeater. Does it with only the 10 volt card when no controller is > > > hooked up. > > > > > > This started it's life as a repeater. It's not a remote base. > > > > > > > > > > > > --- In [email protected], "Fred Flowers" > > > <fred_flowers@> wrote: > > > > > > > > Yes there is a jumper. Is this a repeater? Most likely the > > trouble > > > is the > > > > receiver or controller. > > > > > > > > > >
