GM300 Power/display problem
Posted: Mon Nov 02, 2015 11:43 am
Hello,
I am experiencing an odd problem. My GM300 does not show the channel display and none of the button make any noise. There is not a beep when turning it on. The back light are lit. The radio seems dead. This happened once before. I put the radio on my self for parts and one day I powered up and it worked.
What would be the cause of this? Is there a way to fix. We looked for bad solder joints, eprom seating and board pins at both places had good connections.
I think the eprom crashed. Is there a "cmos" battery per se in there, like a computer? Seems like the radio cannot pass post?
Any help would be appreciated.
Thank you in advance,
Mike
I am experiencing an odd problem. My GM300 does not show the channel display and none of the button make any noise. There is not a beep when turning it on. The back light are lit. The radio seems dead. This happened once before. I put the radio on my self for parts and one day I powered up and it worked.
What would be the cause of this? Is there a way to fix. We looked for bad solder joints, eprom seating and board pins at both places had good connections.
I think the eprom crashed. Is there a "cmos" battery per se in there, like a computer? Seems like the radio cannot pass post?
Any help would be appreciated.
Thank you in advance,
Mike