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relay

  1. L

    SX-780 Darlington testing

    Hello all, I've been searching for a while and can't seem to find a detailed enough guide on how to test the Darlingtons on my sx 780. I blew a fuse (4A) in it a while ago, when I replaced the fuses, there are no longer the start up clicks. Are the darlingtons fried? or it is the protection...
  2. MikeN

    Amplifier issues

    I'm new to vintage audio equipment. I have a little repair experience but not with Marantz. Lately I've had several people asking me to buy their non working Marantz receivers. They are not getting sound and when I ask if they hear a click after turning on the power, they say no and that the...
  3. amr2

    Pioneer A-91A relay drivers

    Hello I'm servicing this integrated. It has several burned relay drivers (RN2201). Does anybody know a suitable replacement? Thank you.
  4. Mike Sweeney

    Riddle me this Mr Speaker Relay

    I think I lost a cap or something on the relay board. Here's the story.. got a beat to hell 2285B but I was able to bring it to life after a fashion :) One of the two filter caps was bad so I pulled it and jumped in a new pair of 10,000 uf caps to test. Hit the power and around 100 volts ( on a...
  5. smurfer77

    Sansui relay subs

    The idea of this thread is to pull together a quick and easy reference for finding modern replacements for old relays in Sansui devices. I will pull together what info I have, but please everyone contribute what you know and I will continuously edit this first post to combine all of the data...
  6. J

    Help with Pioneer SX-850 w/two HPM-100 speakers

    Hello to all, My name is John and to start, I'll throw in a bit of background of the receiver. The radio used to be my grandfather's, and when I received it, it wasn't working (one didn't hear the "Clic" of the relay when you turned it on). All the lights turned on, it was receiving FM and AM...
    • jumoe
    • Thread
    • hpm 100 pioneer relay sx850 transistor
    • Replies: 2
    • Forum: DIY
  7. tusntuk2

    Kenwood KR-5600 relay/recap project; open relay needs help

    What's the best way to check the output relay in a Kenny KR-5600? This thread is actually about two KR-5600's, one being my trusted old friend that's been working 20 years in original condition, and a second 5600 with an open relay I need to fix, then recap. It is also original, but hints at a...
  8. D

    Primare Pre30 kicks relay of power amp when turned on/off

    Hi, I got a Primare PRE30 a while back that was totally dead, no lights, no commands, no sound, but the power supply was working. -First step was the micro controller chip, got a new one from primare and that gave me a very nice faceplate with all the leds lit up and a dash on the display...
    • depaj
    • Thread
    • dc offset power off power on primare pre30 relay
    • Replies: 7
    • Forum: Solid State
  9. T

    SX 780 Repair help.

    So I have had a good clean sx780 for months now and I love it. I moved recently and set it up and it worked fine. I noticed awhile ago that the stk 0050 was going for the right channel but it was still working at the time. After a few days, it made a pop and shut off. I took it apart and noticed...
  10. A

    Marantz 1122DC Help With Replacing Relay

    Hello everyone. I purchased a replacement relay for my 1122DC integrated amp. I opened up the unit to desolder the old relay, but then I saw that the relay was glued to one of the larger caps. How can I remove this? It is pretty solidly glued on there and I don't want to pry on it. Any...
  11. c.coyle

    Testing speaker protection circuit

    I replaced the differential pair transistors in an amplifier and, when I tested offset (with no speakers connected, thank the stars), I got 38 volts at the speaker terminal on that channel. I went back and figured out that I had an open solder joint on one of the new trannys. That fixed the...
    • c.coyle
    • Thread
    • dc offset differential pair relay speaker protection
    • Replies: 1
    • Forum: Solid State
  12. Ronito6

    Rare reed relay substitution ( a visual how to )

    In the past here on AK I've asked about possible substitutions for this Hitachi 24V reed relay . Although there were a couple of what I am sure were good suggestions, there was nothing easily get-able for me until I saw this today. Well it seem some good chap here in Japan who goes by the...
    • Ronito6
    • Thread
    • au-919 au-x1 head phones part needed parts list parts sources reed relay relay repair restoration
    • Replies: 39
    • Forum: Exclusively Sansui
  13. c.coyle

    Hot speaker relay

    I have a Nikko TRM-750 integrated amp. There is a 560/2W (R761) resistor right next to the speaker relay that gets too hot to touch, and the relay itself ends up very warm, but not hot, after 30 minutes. It looks like this resistor brute force drops the B+ down to 24V for the coil. It is only...
  14. fdeelros

    Accuphase P-300 Relay issue

    Hello everyone and happy Easter holiday. I wanted to pick your brains about an Accuphase P-300 that I recently acquired. The unit has two relays (one on each side of the amp close to the front). The relay on the left (behind the power switch) clicks like crazy when the amp is cold or when I...
    • fdeelros
    • Thread
    • accuphase recapping relay speaker protection
    • Replies: 5
    • Forum: DIY
  15. S

    Advent 300 - help diagnosing a short

    Hoping maybe some of the wonderful techs around here can help me out. I have an Advent 300 receiver. I performed a full recap (all electrolytic caps replaced as well as tantalum caps) per the David Reaton website. After recap, amp was brought up on dim bulb tester. Amp was working fine. DC...
  16. Tangerine

    ASR-068 Protection Circuit relays

    Hello all. These 48vdc relays are used to drop the output of the Driver Amps from reaching connected speakers during a fault condition. The two in my A-9 operate, i.e. armature operates but no output to speaker connections. Now these are not available under there Pioneer nomenclature, and a...
  17. D

    My new A77 just went crazy. Help?

    First off, I'm very new here, so I apologize if this is not the correct subforum to post in. It was the most appropriate I could find. I recently bought a Revox A77 and about a dozen tapes. The deck recorded and sounded great, but I just now ran into a problem. The deck had played a tape...
    • Deleted member 255135
    • Thread
    • a77 relay revox troubleshooting
    • Replies: 4
    • Forum: Tape
  18. Richs_Trains

    Marantz 4140 questions

    hey all, I picked up a 4140 that was fairly dirty with lights out and a bent volume knob (the seller broke the plastic out of the inside of the knob so it would 'look' straight). I am pretty fair at mechanical things, but no so much at diagnosing electronic problems. After replacing all the...
  19. Allvey

    Help finding alternative to DEC ML1 24vdc relay

    Hi guys, I’m looking to replace an old DEC ML1 24vdc relay. Can someone recommend a compatible model easily available from Omron or from other manufacturers? I’m attaching pictures of the relay, PCB and schematics. By the way this relay is used in a Sony TA-N7 amp. Thanks
  20. K

    SX-950 lights working, but no sound, and no relay click. Preamp works and voltages are all good.

    I know there a lot of similar posts and I've read through many of them, but I still can't figure out the problem. When I turn on the unit the relay never switches on and no sound will come out. I checked the pre-amp with a separate amplifier and it is producing good sound. I've checked all the...
    • kevdubs
    • Thread
    • no sound pioneer protection relay sx-950
    • Replies: 10
    • Forum: Pioneer Audio
  21. grailseeker

    Marantz 2270 Slow to Click in...sometimes

    Hello, I have a Marantz 2270. It sounds great and seems to work fine, except sometimes the protection relay is slow to click in. Sometimes taking 10 seconds and occasionally up to a minute or more. The guy I bought it from said that his tech noticed it was slow, but said it shouldn't be a...
  22. Cody AOC

    Help finding a RELAY

    So I have a AV receiver that stop working recently and I want to fix it I know what relay it is but I can't find much for buying it online I have this number and manufacturing company name Fujitsu FBR46ND012-P and i've done plenty of work on av receivers and amps in my life but never had to...
    • Cody AOC
    • Thread
    • amp av receiver crown receiver relay soldering sony wobble yamaha
    • Replies: 4
    • Forum: DIY
  23. Richs_Trains

    Marantz Relay Questions

    Hey all, silly question.... how do you get the relay covers off, and do you pull the relay first. Also, is this the correct relay for a Marantz 1070 ... 653-MY2-02DC24 General Purpose Relays RELAY DPDT 24VDC RoHS Compliant Thanks Rich
  24. Richs_Trains

    Quick relay question... hope a quick answer.

    Hey all, Got a new relay for my 2265B. The relay looks pretty much identical except the original has non used legs that are cut off flush to the relay. The new one has all the pins intact. Should I cut off the unused pins, or can I jut leave them not connected. Pins 1-4 have no solder pad...
  25. pioneerhip

    Pioneer SA-9500 No relay click

    Thanks for the help in advance. With the amp hooked to the DBT and all adjustments set the relay clicks on and it plays. When i plug it into the wall however no relay click. I connected to the wire wraps again with the voltmeter and reset the bias/dc off set and nothing? So where do i start now?
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