hifi engine

Tascam CD-200I

Does anyone have service info-circuit diagram for this unit. I have one with distortion on both channels.



Re: Tascam CD-200I

I don't have the manual, but I would first check the positive and negative power supply voltages going to any audio op-amps (on the output board), then the op-amps themselves. Should be something like +/- 15 volts.

Re: Tascam CD-200I

Hi Jonnysan, as per my previous message, I have now replaced the suspect IC and normal clean audio output is restored.

Re: Tascam CD-200I

Thanks for the reply Johnnysan, yes., I have checked, the power rails look like they are ok. I worked on the unit yesterday, I found an IC (TC4052BP) was running hot, it is an analog multiplexer. I think in this case it is being used as source selector (CD or iPod) into the output amplifier stage. On checking using a scope, I can see clean audio going in but it is distorted at the output of the chip (both channels). I have ordered a couple in. I will let you know how it goes.