Recent content by LesE

I'm happy to be of service to this community. I still a fair amount to do before calling it done. ;)

I don't have the RWG-063 Control Assembly in the database (yet) but I can tell you that it was used in the CT-F8282.

I have a copy of the old Sportsbil ADS web site on my Google drive: https://drive.google.com/drive/folders/1feSA_Y1RQrLPquhbFmF72XxOr8h5zTXa?usp=drive_link

Try this one. https://drive.google.com/file/d/1d4yHS8UK_2LMveS-JyoUQ1t0x-0UQzzm/view?usp=drivesdk

The parts database suggests that the ASC-061 Function Switch that is used in the SX-535 is unique to that model.

Here is the schematic of the amplifier assembly showing the calculated voltage values for all of the transistor leads. Hope it helps.

It would be interesting to know if any of the circuit board part numbers in the A-71 match the part numbers in the A-858.

This indicates that the A-858 is the 220/240V version of the A-71. https://www.audioservicemanuals.com/p/pioneer/pioneer-a/pioneer-a-858/2456191-pioneer-a-858-service-manual The A-71 manual on eBay is likely the additional manual (KU/CA) refered to in the A-858 document and may be the only...

https://drive.google.com/file/d/1g8gqWbq_4mkDE3S3QHCupDc2g5656fu9/view?usp=drive_link https://drive.google.com/file/d/1U5zIhSgbs1ZFgP7oNlaBXgQDvEyWcPvW/view?usp=drive_link

https://www.audioservicemanuals.com/a/adcom/adcom-gtp/9419936-adcom-gtp-750-service-manual

A comparison to an SX-1080 should be valid since both the SX-980 and SX-1080 use the GWG-112 Flat Amplifier Assembly with an ACV-190 balance control. Here is a photo from @RS Steve 's SX-1080 thread which shows that the shaft of the balance control is short. Here is the same SX-1080 with...

You may also want to try decreasing C5 from 4.7uf to 2.2uf. This will allow the protection relay to drop a little sooner when powering down which may be sufficient to suppress the pop you are experiencing. The following shows how this change affects the relay coil current upon power down. In...

For future reference, here is a list of the capacitor types used by Pioneer. Capacitors with the "CE", "CSS" or "CSY" part number prefix as listed in the service manuals are "Aluminum Electrolytic" type.

Yes, that should be fine. Welcome to Audiokarma!

Here is the service manual. https://drive.google.com/file/d/1Tr2EDRlOKA8fytESnw3Kp3qjNsg2iGnW/view?usp=drivesdk