I recently got a rca colortrak 2000 stereo monitor from a friend of mine and after turning on it was stuck in a sort of boot loop. It's somewhat hard to describe so i attached a video of it + the tv's schematics.
https://imgur.com/a/AHJ1ed8
After leaving it be for a few weeks me and a friend opened it up thinking it was a busted capacitor but after opening it and inspecting we couldn't really find anything. For some reason the degaussing coil was unplugged and we thought that could've fixed the light flickering issue but it didn't change anything after plugging it.
I did some research on this but couldn't quite find my problem but most posts pointed towards power supply, flyback transformer, regulator, or capacitor issues.
Thank you.
RCA Colortrak 2000 Stuck in a boot loop
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NewSchoolBoxer
- Posts: 369
- Joined: Fri Jun 21, 2019 2:53 pm
- Location: Atlanta, GA
Re: RCA Colortrak 2000 Stuck in a boot loop
I wasn't planning to respond since I have no specialized knowledge but I can generalize.
That looks like I would guess from a device that is undervolted. Enough voltage to turn on without doing anything. I agree with people's suggestions to look at everything related to the power being supplied. First thing you should is use a different and proven good power supply at the proper rating to rule that out. I see those models were made in the 80s. Television is certainly old enough for the flyback transformer to be dead. Voltage regulators can go bad at that age sure. Worth checking. Capacitors, I'd focus on capacitors on the input and output of the voltage regulators and rectifier that should be filtering out noise and AC ripple. In theory, very heavy noise can reduce the effective DC level enough to prevent television from working but I'd be surprised if from bad/dead/leaky capacitors. You'd need an ESR meter to confirm capacitors don't need to be replaced but seems low priority thing to do.
That looks like I would guess from a device that is undervolted. Enough voltage to turn on without doing anything. I agree with people's suggestions to look at everything related to the power being supplied. First thing you should is use a different and proven good power supply at the proper rating to rule that out. I see those models were made in the 80s. Television is certainly old enough for the flyback transformer to be dead. Voltage regulators can go bad at that age sure. Worth checking. Capacitors, I'd focus on capacitors on the input and output of the voltage regulators and rectifier that should be filtering out noise and AC ripple. In theory, very heavy noise can reduce the effective DC level enough to prevent television from working but I'd be surprised if from bad/dead/leaky capacitors. You'd need an ESR meter to confirm capacitors don't need to be replaced but seems low priority thing to do.