Hello,
I dusted off my old Cobra 2000 GTL and plugged it into the wall and it will not power up. The clock is displayed but the main power button will not power everything on. It was last working before I boxed it up a few years back.
I've done some additional troubleshooting and the results are as follows;
1. hooked up 12v instead of 120v and results same, power to clock but no main power on.
2. disassembled and hooked up voltmeter to power supply. I get 16 vac on the output of main transformer. I get 0 v from the output of the bridge rectifier (D403), therefore I conclude that the bridge rectifier is bad. Can anyone confirm or deny my findings? I have not had to troubleshoot a power supply for some time and am rusty.
Robin
I dusted off my old Cobra 2000 GTL and plugged it into the wall and it will not power up. The clock is displayed but the main power button will not power everything on. It was last working before I boxed it up a few years back.
I've done some additional troubleshooting and the results are as follows;
1. hooked up 12v instead of 120v and results same, power to clock but no main power on.
2. disassembled and hooked up voltmeter to power supply. I get 16 vac on the output of main transformer. I get 0 v from the output of the bridge rectifier (D403), therefore I conclude that the bridge rectifier is bad. Can anyone confirm or deny my findings? I have not had to troubleshoot a power supply for some time and am rusty.
Robin