Troubleshooting radio?
Thread Starter
Drifting
Joined: Nov 2016
Posts: 1,958
Likes: 577
From: Pittsburgh PA
Troubleshooting radio?
Anyone have any ideas or things I can look for to troubleshoot the original radio in my 68.
When I turn it on I can hear the speakers "click" but there is no audio.
The radio does not light up
If I turn the dial across the FM band I get faint blips of static, but it's mostly dead silence.
The radio worked one time and that was it.
Then somehow like an idiot I got the battery cables crossed- not sure if this could be connected to the radio stopping?
When I turn it on I can hear the speakers "click" but there is no audio.
The radio does not light up
If I turn the dial across the FM band I get faint blips of static, but it's mostly dead silence.
The radio worked one time and that was it.
Then somehow like an idiot I got the battery cables crossed- not sure if this could be connected to the radio stopping?
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
If you didn't have the ignition key turned ON when the cables got crossed, reverse voltage could not get past the ignition switch. However, you may have fried a fusible link or two which could prevent battery power from getting to the radio, etc.
Scour your electrical schematic for fusible links and/or ask for their locations from other owners. You can't LOOK at a fusible link to know whether it is bad [or not] as the insulation is non-flammable. But, there might not be any wire left inside that insulation.
Scour your electrical schematic for fusible links and/or ask for their locations from other owners. You can't LOOK at a fusible link to know whether it is bad [or not] as the insulation is non-flammable. But, there might not be any wire left inside that insulation.
Thread Starter
Drifting
Joined: Nov 2016
Posts: 1,958
Likes: 577
From: Pittsburgh PA
Ignition key was not on.
I did fry the fusible link at the starter but have repaired. This was several months ago and it appears everything works on this car except the radio and clock. Though based on things I read the c3 clock not working seemed normal!
I did fry the fusible link at the starter but have repaired. This was several months ago and it appears everything works on this car except the radio and clock. Though based on things I read the c3 clock not working seemed normal!
Le Mans Master
Joined: May 2003
Posts: 8,876
Likes: 3,556
From: Fernandina Beach FL
2023 Restomod of the Year finalist
2020 C3 of the Year Winner - Modified
Anyone have any ideas or things I can look for to troubleshoot the original radio in my 68.
When I turn it on I can hear the speakers "click" but there is no audio.
The radio does not light up
If I turn the dial across the FM band I get faint blips of static, but it's mostly dead silence.
The radio worked one time and that was it.
Then somehow like an idiot I got the battery cables crossed- not sure if this could be connected to the radio stopping?
When I turn it on I can hear the speakers "click" but there is no audio.
The radio does not light up
If I turn the dial across the FM band I get faint blips of static, but it's mostly dead silence.
The radio worked one time and that was it.
Then somehow like an idiot I got the battery cables crossed- not sure if this could be connected to the radio stopping?
As far as a fusible like- the wipers AND radio are both powered by the same source (ignition switch)- the clock is a totally different circuit with the cigarette lighter- that's not the problem...
The radio only 'lights up' when you turn on your dash lights (via the headlight switch)
Your radio has two parts- headunit in the dash and an external amp behind the pass dash(see below). OK- not really an amp but a heatsink for the output transistors.
To me- if it sounds as the output transistors are bad. You can try tapping on them gently say with the handle of a screwdriver- and see what happens.
If nothing- you'll need to send the radio AND the external amp to one of several guys that rebuild them.
Richard
Last edited by Richard454; Mar 28, 2017 at 09:26 PM.
