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Subject: Re: [chromapolaris] Polaris parts

From: Mario Faelli <sukhoy27@...>
Date: 2013-01-21

Seat Paul ,
                 I follow your instructions , trying to we'll examine circuits and connectors !!!
It was the new Audio Jacks isolated from chassis replacing the old badly connected !!!!!!! Eh eh

I connect at first the jack without understand that the HIGH OUTPUT ones is a "switched jack" with normally closed contact ( T -> Ts )  . I do the work soldering again all the cables from output board to jacks , and now Polaris sounds fantastic !!! 

Lower F  , D 4
Only R45 trim not work trying to turn clockwise and counterclockwise , the master volume LED don't light !!
Should it be ADC ??

In any case today I try to SCOPE ( Packard Bell ) all the signals from Polaris :) ..

THANK YOU PAUL FOR HELP  
Ciao


Faelli Mario

From iPhoneX

Il giorno 12/gen/2013, alle ore 03:25, "Paul D. DeRocco" <pderocco@...> ha scritto:

 

> I'm interested to change the ADC, DAC, and if possible the
> most importante CHIPs in the Polaris.
>
> Are they still on eBay, on I need to buy here ?

The ADC is available from various distributors, like Digikey, but the DAC
may be hard to find.

But I don't think you should change chips, especially rare or expensive
ones, in the blind hope that one will magically fix your problem. The right
thing to do is to have a technician debug the problem properly, and figure
out what's wrong by analyzing the clues in the behavior.

I don't know any repair technicians in your area, but there must be someone
who is capable of understanding how the Polaris works, and who is
experienced with a scope and other tools. The service manual has good
descriptions. I know, I wrote them. Unfortunately, they're in English, so
you would need someone who can understand technical English.

--

Ciao, Paul D. DeRocco
Paul mailto:pderocco@...