I have never seen PLL chips go bad in anything. They should only do it if the voltage regulators are fried and they are over volted. Check your VCO transistor and buffers.
On 2/12/07, Glenn Little WB4UIV <[EMAIL PROTECTED]> wrote: > Replace the noisy PLL LO with a quiet crystal LO. Easy surgery, better > noise figure on receive and less phase noise on transmit. You probably have > no need to have an agile receiver. > > 73 > Glenn > WB4UIV > ARRL Technical Specialist > > > At 01:26 AM 02/12/07, you wrote: > >Well... > > > >I've got an Icom IC-RP2210 (220MHz) Repeater here with a dead > >receiver. The PLL is crap and it's not the first time I've heard > >about this problem. Even more no-fun is the NEC PLL and Prescaler > >chips are no longer available. > > > >Anyone ever find a replacement parts source for the pll uPD2834c > >and pre-scaler uPB571c chips? > > > >and/or... > >Anyone got a dead Icom Repeater Receiver they want to sell as a > >parts unit? > > > >What is everyone else doing with these repeaters if we can't get > >the parts to fix them? > > > >What are the next six lotto numbers for the CA. Lottery? (never mind > >this one). > > > >your turn, > >skipp > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > Yahoo! Groups Links > > > >
