Hello all.
I've recently been given a transceiver as recieve only for a bargain price, it receives well on all frequencies fitted, shows 60ma of Final Amplifier resting current, the contact relay is functioning when keyed but it won't transmit.
Upon removing the covers and discharging the large 500v capacitors using the tip of my tongue i have discovered a burnt resistor hiding in plain view under a burnt piece of spaghetti insulation.
I've removed the resistor and sure enough it's measuring as an open circuit.
In curious as to weather this component is commonly burnt out, and what may have caused it, perhaps something has been overdriven? or maybe something else is faulty causing it.
I'm unable to read a value on the resistor due to the burning but I'm going to fumble my way through the circuit diagram to work out what I need to buy.
I'd love to hear some feedback from anyone who has experience with these fantastic rigs, perhaps someone has seen this exact damage before ?
Please see the photos
View attachment 75143View attachment 75144View attachment 75145
73's
Andrew
I've recently been given a transceiver as recieve only for a bargain price, it receives well on all frequencies fitted, shows 60ma of Final Amplifier resting current, the contact relay is functioning when keyed but it won't transmit.
Upon removing the covers and discharging the large 500v capacitors using the tip of my tongue i have discovered a burnt resistor hiding in plain view under a burnt piece of spaghetti insulation.
I've removed the resistor and sure enough it's measuring as an open circuit.
In curious as to weather this component is commonly burnt out, and what may have caused it, perhaps something has been overdriven? or maybe something else is faulty causing it.
I'm unable to read a value on the resistor due to the burning but I'm going to fumble my way through the circuit diagram to work out what I need to buy.
I'd love to hear some feedback from anyone who has experience with these fantastic rigs, perhaps someone has seen this exact damage before ?
Please see the photos
View attachment 75143View attachment 75144View attachment 75145
73's
Andrew
