The Defpom Forum, for RadioMods, S&M Software and Music by The Defpom

rick the audio chip is a : ta7222ap. thank`s.

thank`s smokinjoe i didn`t know that.

the fault only happens when the radio it self is warm. it even happened when it was hook to my power supply. i had radio hook to car today and the fault happened. i have the volts for you. but one thing. the radio has to be warm to the touch before the fault happens. like today had radio in car but ...

the fault happen`s when it`s in my car. if the audio chip has ten legs on it? and if this correct? it`s blank. nothing on it. thank`s.

rick, sorry for giving wrong one. my tr23 is on the board. not on the side. mine is called c1226. and the voltage on it is: 8.57base 11.85collector emitter7.91. this is before the fault. i check this out when it was hooked to power supply. is this alright or do i need to take a reading when it`s in ...

i got the volt reading`s you wanted. these reading`s are going to be before the fault happen`s. 1.Base(-0.40) 2.Collector(0.26) 3.Emitter(-0.30). this is the erf-2030. i will have radio with me tomorrow and when the fault happen`s i`ll get those reading`s for you to. thank`s rick for your help again.

thank`s rick for your help on this. i will read on this and get back to you on the volts for the transistor you wanted. again thank`s for your time and help. ill need a day or so and ill be back with you on those volts you wanted. thank`s again.

ok. but i`m going to ask a very stupid question? i only used a volt meter a few time`s with someone`s help. so if you can tell what legs on the transistor i probe and what i set the volt meter to? i will be more then glade to get this information for you. i hope you can bare with me on this one. i`l...

1. yes the tx/rx led does light.
2. yes i`ve tried a new mike.
3. no i didn`t check for cold solder joint`s.
4. pcb is: pc-900a c pll is: d2816c

thank`s for your help rick. here`s your answer`s.
thank`s.

ok i`ll give it a try. thank`s rick.

i removed roger beep and the problem is still there. i took it with me to work this today. it work this morning and at lunch time. then at my last break i keyed it up and the problem was still there. for some reason when the radio warm`s up from sitting in the car it will key up and the tx and rx wi...

i have the power for the roger beep hooked
to the on and off for the radio. hope this help`s.
thank`s.

no. the display was like that when i got radio. for the rx and tx. this
happened when i installed roger beep. hope this help`s. thank`s.

After I installed a roger beep. My radio started to have a problem. For some reason the TX and RX just go out. I can be talking with someone then unkey then keyup again and nothing. I`ll have key- up but no TX or RX. Then when I shut the radio off and wait a few second`s and turn back on everything ...

The led display is not showing the full number`s. Do I need a new
display or something else? To get it to work. Hope you`s can give
me a hand. Thank`s.

thank`s for all your help.

nomadradio, the receive/transmit light does light up green.
and when i key up it does change to red. hope this help`s?

i found my other 25 ltd classic with the pcb board intact on plug.
it had the same wiring as the one i put this plug into. hook up
everything and soldered the wire`s. i have key up but nothing
else. no transmit or receive. i hope someone can give me a hand
with this problem? thank`s.

thanks kc8mob, and nomadradio for the help. it sounds like i will
go after the 5 buck replacement then trying to hook back all
those components. the 5 bucks sounds much easyer. thank`s again guy`s.

I was taking the internal mike plug out when i crack the pcb board that
was on the plug. so, my question is can you still wire the plug without
the pcb board on it? and if you can, can some tell me the wiring
diagram for it? any help would be appreciated. thank`s.