sx-939

Hi, I have SX-9930 under restoration and dial glass is fully broken. I would like to get your opinion to dial glass question. Original dial glass has a slight tint. I got new replacement but it is clear glass. I was thinking to use 5% darkening film on inner side of the glass. Is it good plan...

I was wondering if anyone could point me to a rwcource for replacing the various lamps for an SX-939. All of the lamps currently work short of a little green FM light. Personally, I'm not a big fan of LEDs but I'm willing to experiment with them if that's my only option. Also, if anyone has...

Hello, AK Land, I just finished up recapping (and retransistoring, and redioding) my dad's old SX-939 he and I bought locally off Craigslist four or five years ago. Five years ago? We might as well be living in another world now, LOL. I bought three kits off eBay from a seller who refers his...

This is my first post to this awesome forum! I recently completed an SX-939 restoration, using the incredible set of resources available here. But, one minor thing has been bugging me... all the service manuals I’ve found for the sx-939, contain the circuit assembly diagrams and parts list...

I might have an opportunity to pick up a SX-939. I'm not asking about price. I'll post in Dollars and cents later if I'm curious. It's a bit of a road trip to get there. I've looked on E bay and other places around the great internet universe but I'm not seeing very much discussion about this...

I've got an SX-939 that had intermittent FM tuning problems, it eventually went dead. I used to be able to touch the HA1201 and get the signal back, not any more. I checked voltages, I'm not sure what I should get but things looked normal except for pin 6 (Vcc). I assumed I should have a supply...

Hello, I recently obtained this SX-939 in really nice cosmetic condition. The only problem that I noticed was that it would drop FM signal after about 10 seconds of powering up and then remain off. All other inputs seem to be working fine. After cracking it open to take a look I noticed that...

Hey! So I'm working on a Pioneer SX939. Recapped the whole thing, but after I recapped the tuner section I got nothing. My first step when this kinda thing happens is to check and see if the section is getting power. It is, but only about 1.7v instead of the 13 I should be seeing. My next step...

Hello all, I want to do a full recap of my sx-939, including transistors, and whatever other parts that should be replaced. Can someone point my in the direction of a full list of the parts I should get for this? What should be replaced? Thanks.

Team, I need help on a SX-939 roadside find. It was sitting half in a box with snow on it. I saw the wooden case and sure enough, vintage audio. Now I figured it was a toast but I hauled it home anyway. I dried it out for a day with a fan on it and gave it a try. It lit up nice and I could...

Hello, This is my first time posting but I have been following much of the great advice here for a couple of years. I grew up in my dad's TV/Electronics repair shop and have recently gotten back into vintage equipment. I need some help with a 939 rebuild project for my son. I picked up the...

I aquired a mint Pioneer SX-9930 for free a while back and had it serviced. It works really well and sounds amazing! I was told by multiple people that it is a very rare receiver (being a European version of the SX-939) in the US. Do you guys have any thoughts on it? I'll try to include some...