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relay

  1. Z

    Hitachi HA-5300 speakers relay

    Hi Everyone. I am learning from all of You from some time but this is my first post. I have stumbled upon a problem for which I did not found an answer. I am during restoration of Hitachi HA-5300 and the mentioned speakers relay is in quite bad state (see the attached photos) it don't even have...
    • ziende
    • Thread
    • ha5300 hitachi parts relay repair
    • Replies: 13
    • Forum: Solid State
  2. W

    SX-850 Speaker relay keeps tripping

    I have few old receiver I have collected over the years, basically we have always used them for our sound systems, as one would be going out I would some how get another one. But as good old equipment is get hard to find (and I finally have a work bench again) I am going through these old...
  3. crazy-in-az

    Speaker relay for Sonance Sonamp 260

    I've been having a problem with channel drop outs on my Sonamp that I've tracked down to a bad relay. Tapping on the relay will temporarily bring the channel back. I can't seem to find an exact replacement. The relay is a Guardian 1335-2C-24vdc, which is rated at 5A 30vdc/120vac. I can find...
  4. J

    Technics SA-400 Relay Problem?

    Speakers connected to output on right side of my SA-400 are giving inconsistent sound. This happens for both main and remote outputs on the right side. Sometimes it’ll briefly work, other times it won’t at all. When I connect all speakers to the left output (Main and remote) it’ll work...
    • Justin6844
    • Thread
    • relay speaker output technics technics receiver technics sa 400 technics sa-400
    • Replies: 5
    • Forum: DIY
  5. David_NC

    Relay Question

    As part of my de-soldering station project, I need a relay to switch on the vacuum pump. It's an older Gast model with a 1/6th HP motor that draws 4.2 amps and need some input as to which relay to select. I'm looking at these: 3-32V DC to 24-480V AC 40A Output Single Phase SSR Solid State...
    • David_NC
    • Thread
    • relay
    • Replies: 2
    • Forum: DIY
  6. bzenic

    Bad relay, protection board or something else?

    Thank you for your fast response, starting a new thread as advised. My issue with SX-737 is that the with relay is switching randomly cutting the sound on and off . According to some advices found here I measured the voltages on the protection board WM 025: Pin 1: 6 mV Pin 2: -13.3 V Pin 3: 13...
  7. Sergimm

    Question about replacing relays

    I am trying to find out why a Denon PMA 560 has very low volume on both channels. Looking around on the web I've seen that a common problem in this amp is that relays often fail or misbehave, so I went ahead and ordered new relays on Ebay that are supposed to be compatible with this model. The...
  8. Richs_Trains

    Marantz 170dc help/advice/guidance Need help after my mistake!

    Hey all, The 140 turned out well with all the help on AK, a few hiccups, but all is good. I also have a 170dc that I would like to refresh. I started with PN00 and replaced the electrolytic caps, I had the exact replacements for all except CN04, which is a 10uf 63v. I put a 10uf 100v in its...
  9. A

    Pioneer Spec 4 restoration.

    Hi. Im finishing the restoration o two Spec 4 amps. Im having problem finding a good sustitute of the speaker protection relay. Any sugestions? Thanks in advance.
  10. polypetalous

    Is it ever "just" the Relay? Troubleshoot STA-2000 help please...

    Well jeez, pretty bummed... Perhaps a lil help? My equipment had been serving me well during this "stay at home" time, until today. Realistic STA-2000, un-restored. Periodically over the last couple of years the "speaker protection relay" won't click/engage when powered on. Since I have been...
  11. goldswimmerb

    CR-1020 relay won't engage

    Hey, so I recently acquired a CR-1020 thats relay won't engage for me. I have been checking voltages and so far the only voltage that is wrong is: TR706 b:.6v c: 18.1v E:0v And TR702 B:19.9V C:0V E:20.2V If I set my probe to diode test/continuity and probe the base of TR706, the collector of...
  12. Morgan250

    FUJITSU FRL 644 D24 2AS MARANTZ 3250 ...

    Hello everybody, I am restoring a marantz 3250, I have a little problem, when I turn it on, I have to wait 10 minutes before sound comes out ... The device must therefore be "warm" before the sound arrives. I thought of a relay problem ... It is a Fujitsu FRL 644D24 / 2AS model ... Do you have...
  13. Codi

    Where to buy specific vintage parts / suitable replacements?

    Hello! I have a Realistic STA-2100 that I recently acquired from a relative. I plugged it in and it powers on but it started smoking out of the rear :( I THINK I have identified the part as: C1502 47u 10V EL 647-UPS1A470MDD Attached is a picture as well, I believe it is the white rectangle...
  14. duncan

    Denon POA 2200 repair/recap - some notes

    Nothing earth-shaking here but thought I'd post some pictures and notes for anyone who runs into a similar situation. I acquired a POA2200 power amp last year. The previous owner gave full disclosure that it seemed to have intermittent problems, but I couldn't make it misbehave. Actually the...
    • duncan
    • Thread
    • bias denon protection recap relay servo zener diode
    • Replies: 19
    • Forum: DIY
  15. zelgy1

    Sansui G-7500 Assistance Needed

    Hi all! I've started my new project, troubleshooting a Sansui G-7500. I've read many a post on this unit and looks like I'm in for a good one, but I'm ready for the challenge. The relay is NOT clicking/activating, so of course no sound output. Unit does power up and all fuses have been checked...
  16. richardg0n

    Marantz 2325 Protection relay HOT WIRED?

    I bought a 2325 on eBay that has been serviced by a technician including a handful of times by my local repair guy who specializes in 70 stereos. Over the last year, the protection relay was replaced by my technician. The 2325 protection relay keeps clicking multiple times just after turning on...
  17. goldswimmerb

    Marantz 2252 relay slow to open?

    Hey guys, so I have a 2252 that gives me a large thud, and significant DC through the speakers on shut down. The amp Powers up just fine, no thuds and typically the relay opens within the expected 5 seconds or so. On power down the relay seems to take much longer to close, to the point where I...
  18. sgtpetter

    Audiolab 8000A - mods and schematics question

    Hi all, this is my first post. I have an Audiolab 8000A and want to install the "Preamp output muting" relay mod as described in a service manual that I found here: https://www.hifiengine.com/hfe_downloads/index.php?audiolab/audiolab_800... However, I've got a newer version than the manual...
    • sgtpetter
    • Thread
    • audiolab 8000a british hifi diy mods relay schematics needed
    • Replies: 1
    • Forum: DIY
  19. Riki

    Building an AMP Switch: Relay/Switch Requirements

    I want to share a single set of speakers between my Yamaha CR-1000 and a Pioneer VSX-32. I want to build a switch box for them. I've noticed while shopping for switches and relays (I haven't quite decided which way I want to go) that the prices increase exponentially with the current rating...
    • Riki
    • Thread
    • relay switch box yamaha
    • Replies: 11
    • Forum: DIY
  20. Starbond

    Technics SA-370 (bpc) relay constant clicking

    I purchased an SA-370 on the bay that was damaged on shipment (issue has been resolved). Anyways I ended up being allowed to keep the unit, which has a weird condition where the relay will click very fast and the unit will not start up, however if left plugged in (but off) for a few hours, the...
  21. Richs_Trains

    Marantz 4140 random light noise at power up

    Hey all, Haven't been on the site for a while, after my wife passed just kind of fell out of the hobby. Packed all the stuff up and pretty much stopped. But, then a sad looking 4140 came up and I really like that amp, so I bought it. Had to replace to power switch, fuse holder and tape 1...
  22. nickhead

    KR-7400 with a constant hum in both channels

    I picked this up recently. Has a hum in both channels. While troubleshooting I found that if I tapped the relay the hum would go away for a few seconds. So I reflowed the relay. No change. Ordered a new relay, put him in. Still has a hum, but tapping the relay now has no effect. Any ideas...
  23. PTL-Pioneer

    Relays - What you have & What to Replace it with.

    Hi all I know there was some work done on this before, by many, and much greater minds than I. I thought it would be a good idea to get people to list their gear and the specific modern replacement they used when replacing worn out or dodgy relays. I recently replaced relay in an Onkyo A7090...
    • PTL-Pioneer
    • Thread
    • relay replacements substitute
    • Replies: 3
    • Forum: DIY
  24. nickhead

    SX-838 won't come out of protect

    I'm "new" to the forums, although I've been a lurker for about a decade. I've absorbed a great deal of information from the threads here. I now have a problem I can't figure out. SX-838, relay not engaging. I'm not an electronics expert, but I have more than a basic understanding. I was...
  25. D

    CR-620 Stuck in Protection Mode

    Gang, I'm the original owner of a CR-620. Never over-worked, and always treated well. The only maintenance performed on it during its life was to clean the pots with Deoxit in attempt to fix "scratchiness", which worked perfectly. Turned it on in August 2018 and, low and behold, the output...
    • Demiglaz
    • Thread
    • cr-620 protection circuit relay stuck in protection mode
    • Replies: 38
    • Forum: Yamaha
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