Pioneer GM-X522

Thread starter S Merlington
Start date 2016-02-12 11:21 am

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S Merlington

2016-02-12 11:21 am

2016-02-12 11:21 am

#1

Anyone know of this amp is using muting transistors ?

I'm getting both positive and negative rail and regulated voltages ..

Amp
Has no output ..

Perry Babin

2016-02-12 11:59 am

2016-02-12 11:59 am

#2

Q204 and Q205.

I'd suspect switches or pots.

I think I remember one similar amp with a bad op-amp near the RCAs.

S Merlington

2016-02-12 12:06 pm

2016-02-12 12:06 pm

#3

Removed Q204,205 amp plays clean audio now ..

I will replace them and test

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Status: This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.

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