Connect with us

Pioneer SX-205

Discussion in 'Troubleshooting and Repair' started by shorteddiode, Mar 24, 2011.

Scroll to continue with content
  1. shorteddiode


    Mar 23, 2011
    Wouldn't turn on so I checked the ac side and found a bad solder joint at the main transformer. Now it turns on for a short time then displays "Power Off" I found an amp tansistor bad and replaced it (Q3) a 4.7 ohm resistor (R365) and transistor (Q303) Replace the bad parts and still says "Power Off" after a few seconds. Tested electrolytics and didn't find any bad. Anyone have any ideas I Need Help!!!!!
    Schematic at the link below.
    I decided to replace all the power amp transistors so Q1, Q2, Q3, & Q4 have been replaced, still goes to "Power Off"
    Last edited: Mar 24, 2011
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day