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thanks glen .i found it to be a small surface mount
transistor just up from the regulators .it was burned out
----- Original Message -----
Sent: 17 April, 2005 9:01 AM
Subject: Re: [Repeater-Builder] Fw:
[PRM80] prm80 L UW
Check for an open choke in series with the power lead to
the microphone.
73
Glenn
WB4UIV
At 05:28 PM 04/16/05, you
wrote:
>
> Hi guys I have a prm80 L UW -PRM8025 and
the backlighting has failed .
>light bulbs are ok and no 8 volts on pin
5 on the microphone .This
>occured after a mic that was wired
wrong was tried in the mic socket.
>I have service manual to it but the
model must be different as very few
>diagrams match up.any sugestions
.both 5 volt and 9 volt regs are
ok
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