[Coco] Tano dragon repair?

[Charles Allison]

The sound in the dragon 64 comes from the 6821 chip on pin 11, it is also shared with the multiplexer to drive other functions. The 10k resistor could be suspect also.

good luck!

Sent from my iPhone

> On Jul 9, 2019, at 14:16, Charles Allison via Coco <coco at maltedmedia.com> wrote:
> 
> The IC20 chip is a 4529 which is the audio multiplexer chip.
> 
> Sent from my iPhone
> 
>> On Jul 9, 2019, at 13:29, rietveld rietveld <rietveldh at hotmail.com> wrote:
>> 
>> I tried to run the audio out to a amplifier then out to the TV but it only amplified the muffled noise even more
>> 
>> Sent from my BlackBerry 10 smartphone.
>> Original Message
>> From: Salvador Garcia via Coco
>> Sent: Tuesday, July 9, 2019 2:05 PM
>> To: CoCoList for Color Computer Enthusiasts
>> Reply To: CoCoList for Color Computer Enthusiasts
>> Cc: Salvador Garcia
>> Subject: Re: [Coco] Tano dragon repair?
>> 
>> 
>> I am not familiar with the inner workings of the audio system, but given the symptom, I would put my bet on the audio amplifier, if it has one :-S. I am sorry that I can't elaborate. This is just a bit out of my scope. Hopefully someone more knowledgeable will chime in. Salvador
>> 
>> 
>> 
>> 
>>   On Tuesday, July 9, 2019, 10:13:13 AM CDT, rietveld rietveld <rietveldh at hotmail.com> wrote:
>> 
>> Having problems with the audio out on my dragon. The Dragon works perfectly with the exception of the audio that is barely audible even with the monitor (tv) speaker turned to full
>> 
>> Any ideas what I should be looking at?
>> 
>> 
>> Thanks
>> 
>> 
>> Sent from my BlackBerry 10 smartphone.
>> 
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