trc458 older washington board
Posted: Saturday 18th Apr 2009, 6:41
Radio Make and Model: TRC 458
PCB Number: ?
PLL Number: UPD858
Test gear available: WATT METER AND COUNTER MULTI METER
Symptoms: LOW DEAD KEY IF YOU TURN VR 8 TO GET IT UP HIGHER IT BURNS UP THE POT FIRST I THOUGHT BAD AM REG SO REPLACED WITH 2SA473
What is working: EVERYTHING WITH LOW DEAD KEY ON AM
What has been tried: REPLACING THE AM REG WITH 2SA473
Did it suddenly happen ?: NO
Anything else that may be of help?:?
PCB Number: ?
PLL Number: UPD858
Test gear available: WATT METER AND COUNTER MULTI METER
Symptoms: LOW DEAD KEY IF YOU TURN VR 8 TO GET IT UP HIGHER IT BURNS UP THE POT FIRST I THOUGHT BAD AM REG SO REPLACED WITH 2SA473
What is working: EVERYTHING WITH LOW DEAD KEY ON AM
What has been tried: REPLACING THE AM REG WITH 2SA473
Did it suddenly happen ?: NO
Anything else that may be of help?:?