Hi All,
I have a R2550A communication system analyzer. Squelch Pot is not working for 2 days. Also squelch led doesn't lit when I turn the pot to minimum squelch level. Anyway, when I do a transmitter test of a radio, there is no audio and no modilation on the modilation scope screen. On the RF Display screen I can see the power input level and Frequency Err shows around +13 Khz and +15 KHz as unsteady.
I have changed the Interface module with the good one but no luck. I did not believe the pot was damaged because it stopped working suddenly.
Any idea and help would be appreciated.
Thank you in advance.
BR,
moztas
Motorola R2550A Squelch Problem
Moderator: Queue Moderator
Re: Motorola R2550A Squelch Problem
Have you tried going into the special functions and doing an MVN reset?
Dave
Re: Motorola R2550A Squelch Problem
Yes, I had tried MVN reset but no changes.
Re: Motorola R2550A Squelch Problem
I realise that problem is on the "Receiver" board. I replaced with a working Receiver board and now it's working great. I have no time to find problem on Receiver board but suspecting about 10.7 Mhz Xtals. Voltage regulators just fine on the board and no short-circuits. Any idea?