• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

sx-1250

  1. K

    SX 5590-SX 1250 help please.

    Hello Everyone, https://audiokarma.org/forums/index.php?threads/sx1250-sx5590-restoration.907820/#post-13669309 I've started the recap and update for my beloved SX 5590. Find that thread above. And I've encountered my first problem so I'm hoping somebody here can assist with the...
    • knownman
    • Thread
    • pioneer 1250 pioneer 5590 repair help sx-1250 sx-1250 restoration sx1250 sx5590
    • Replies: 14
    • Forum: Pioneer Audio
  2. xXColdShotXx

    Pioneer SX-1250 Dial Lamp Issue

    I have rebuilt every board in my SX-1250 except the tuner. I have an issue with the 4 main dial lamps going from barely lit dim to kind of bright randomly. Has anyone else had this problem or does anyone know what may be the problem? Thanks.
  3. J

    Pioneer SX-1250 Restoration Recommendation Needed.

    Hello everyone, First post here. I have been reading some posts here & elsewhere about who to send my average condition SX-1250 to to have it fully restored. These are the guys I have found. I'm looking to find out who you recommend & why. I did talk to the guy at Many Moons. I put in...
  4. Airjmax

    My Pioneer SX-1250 Story

    I was browsing my local Letgo items, and saw a listing titled "Antique Stereo Collector's Item - $100" with a dark, out-of-focus photo. I could make out that it was a vintage 70's receiver, but not what make/model. I immediately messaged the seller, who informed me that it was a Pioneer...
  5. Super Noob

    Project: SX-1250 (2nd Take)

    The sickness continues: VK = November 1975 (early unit) VK3900089K Thinking this is an early unit... unless I am wrong - maybe the within the 1st (100) made? My other unit is July 1976. Once I unload some of other units = I will get into this thing full bore. It has broken AM antenna...
    • Super Noob
    • Thread
    • rebuild restoration sx 1250 sx-1250 sx-1250 restoration sx1250
    • Replies: 74
    • Forum: Pioneer Audio
  6. J

    Help! Pioneer Sx-1250 No sound, Indicator lamps, tuner etc.

    Looking for some help here... My SX-1250 is almost dead, When I power on I have illumination lights and that's about it. I'm starting with the AWR 106 power supply assy. I have taken some voltage readings and here is what I currently have. Pin / Actual / Svc manual says I should have #1...
  7. R

    Pioneer SX-1250 Voltage Stabilizer (AWR-106)

    I am going to start a thread for an assembly which can be used for a link to the Mouser BOM and discussion about the assembly. Great place to discuss improvements like heatsinks for cooling devices better. BOM link that I will maintain, suggestions welcome...
  8. schanson

    Pioneer SX-1250 Need Help

    Hey everyone! This is my first post, although I have been lurking for a few years. I have a Pioneer SX-1250 that I picked up about 10 years ago and have fallen in love with this thing. Sadly this week it started having some issues. After about 30 minutes of listening is starts to pop in both...
  9. 70'sMusic

    Cleaning SX-1250 RCA Connector Question

    Hi Everyone, Been loving my newly acquired SX-1250 and want to clean the RCA connectors. There is something on the outside of the RCA connectors. I used very fine steel wool along with DeoxIT to clean the metal "jumpers" to get what looked like rust off of them. Don't know if it's dust that...
    • 70'sMusic
    • Thread
    • 1250 1970s pioneer receiver sx sx-1250 vintage vintage pioneer vintage pioneer receiver vintage pioneer stereo
    • Replies: 15
    • Forum: Pioneer Audio
  10. foo.kamikaze

    Pioneer SX-1250: How to connect Klipsch R‑12SW Subwoofer?

    Hello fellow "Audiokarma-ites"! I'm a fairly new member of Audiokarma, and audiophile novice. I live in Forest Lake, Minnesota, and own various Marantz 22XX series stereos and various Pioneer SX series stereos. My current favorite is my SX-1250. I switch between two sets of speakers in my two...
  11. Kingbleu

    Pioneer SX-1250 distortion when balance knob is full right

    When using a scope I can see distortion / oscillation on the right channel when the balance knob is full right. If I reverse the jumpers I can see distortion on the right channel when the balance knob is full left. If I switch the power amp boards the distortion stays on the right channel...
  12. Super Noob

    Project: SX-1250

    The sickness continues. Getting into a 1250 that I picked up recently. 2nd owner had it for 25 years = ~1993. Here is what I found = looks as if it has never been opened. All the lamps look original and were working. Need of a good cleaning - working through that now. It adjusts outs...
  13. markallen

    SX-1250 Main Outputs Fail

    This is actually the unfortunate story of an SX-5590. Quickly established the L channel main outputs were shorted. When these shorted transistors were removed, it would come out of protection (two clicks) but no tuner or panel lights. Went through the stabilizer board first, and found three...
  14. rsmcatskills

    sx-1250 front boards & disassembly

    Ok, easy boards done so I moved to the front. Got some questions and contrary to my usual approach I'm open to advice. Id rather get some advice from someone that been down this road rather than screw up this beautiful machine. ( and waste a whole lot of time). 1. do the lever type switches...
  15. S

    replacement for SX-1250 antenna

    Hi All, I'm restoring a Pioneer SX-1250. Very much appreciating the restoration thread on the forum. On my particular unit the antenna mount is broken and one of the wires (red) has been yanked out of the antenna. There is not any slack on the antenna side to splice it. I haven't been able to...
  16. pioneerhip

    Is the Pioneer SX-1250 warmer than the SX-850

    Hey Hey Hey! I currently own an SX-850 and like it. I notice the SX-1250 giver a few more options on the tone controls. I do not need the power for my current listening set up, and i'm aware the purist leave their tone controls set at flat. My room needs more than flat controls. Can anyone...
  17. t j

    SX-1050

    CORRECTION SX-1250 Left channel cuts out, but when I touch the jumper it cuts back in. Happens on all phono and tuner inputs, but have not checked the others. Would a pre-amp be a good choice here, or do I need to open her up? I did it barefooted and it buzzed a bit... -Thanks, tj
  18. Michael Bishop

    Pioneer SX-1250 FM muting not working

    My Pioneer SX-1250 has developed a problem where the FM muting between stations no longer works. With my volt/ohm meter, I have verified that the issue is not the muting switch, nor the wiring from the switch board to the FM tuner board. Looking at the FM tuner board, I see no obvious visual...
  19. Robayb

    sx-1250 lights

    All the orange selection lights have gone out at once . The speakers A,B,C and the inputs ( fm, phone, etc) are all off. Is there a fuse that may have affected these or are they wired in series so if 1 goes out they all go out?? , it's hard to believe they are all burnt out at once. thanks
  20. goat67

    SX-1250 Equalizer Amp AWF-021

    Hello I am wondering if anyone has used a Bipolar cap of 10uf instead of the back to back Tants for C25 22uf and C30 22uf. I have been using the 2 22uf UKLs here but I was wondering if 1 10uf UES would be a better choice. The same question on the AWG-042 Flat Amp for C9 C11 and C10 C12 Thanks
  21. L

    Problem with SX-1250

    Hello from a newbie, I'm very happy to be aboard and glad I found this forum. Hope this is not something that repeatedly asked ? When approaching one half volume (although not hearing any noticeable "clipping" or distortion) the receiver momentarily "cuts out", comes back on, and "cuts out"...
  22. E

    SX-1250 Issues

    My first vintage amp! Having an issue: Sometimes the channels (left or sometimes right) fritzes out until I push through the audio source buttons or flip the Stereo/Mono switch a few times. Happens with both phonos, aux, and tuner. Mono gets it to work on both speakers, but not stereo. Once...
  23. Restored Pioneer SX-1250

    Restored Pioneer SX-1250

    My restored SX-1250, all new electrolytes including filter caps, trimpots and transistors in the preamp sections. Also replaced all the transistors and diodes on the stabilizer board. This thing is one amazing receiver, it is near mint, with only a couple of light scratches on the faceplate and...
    • mattsd
    • Media item
    • pioneer receiver sx-1250
    • Comments: 0
    • Category: Member's Component
  24. Pioneer SX-1250

    Pioneer SX-1250

    • Retro Stereo
    • Media item
    • pioneer sx-1250
    • Comments: 0
    • Category: Pioneer Gallery
Back
Top Bottom