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yamaha

  1. Adeel Mughal

    Yamaha P2250 PA(A) Protection Issue

    I have an old Yamaha P2250 having protection issue, after long troubleshooting, I found that there are DC voltages coming out from PA(A) output TP205 Base +/- 23 vDC and Emmitor +/- 23 vDC Protection mode turned off when I disconnect +/- 15v that power up OP AMP or remove output jack from...
  2. RAART

    Need opinion on Falcon Acoustics Q7 vs. Ascend Acoustics Sierra 2EX - What to buy?!?

    Hello Audiokarma folks! I hope that someone here has owned or still owns Falcon Acoustics Q7 or Ascend Acoustics Sierra 2EX speakers and can share their thoughts on those speakers and how they compare to each other, strengths and weaknesses, etc. I currently have 2 integrated amps and 3 sets of...
    • RAART
    • Thread
    • ascend acoustics denton falcon acoustics psb synthesis triangle wharfedale yamaha
    • Replies: 26
    • Forum: Speakers
  3. A

    Denon PMA-600NE, Yamaha A-S501 or Rotel RB-850?

    I'm looking to replace a cheap amp I'm currently using for my setup. From my research, I've narrowed it down to the Denon PMA-600NE and the Yamaha A-S501. Out of these two, it seems the Yamaha would be the better choice. However, I've just recently acquired a Rotel RB-850 for $15 dollars, and it...
  4. JB8

    YAMAHA CR-820 Relay Clicking On/Off

    Issue: At start up the relay would click on and off sporadically without any manipulation Troubleshooting Steps: Checked to see if pressing on/manipulating the protect circuit relay would help, it did not Checked voltage at TR-801 and got roughly 57V DC on ECB. In different, similar thread, I...
    • JB8
    • Thread
    • cr-820 relay clicking relay replacement yamaha yamaha cr-820
    • Replies: 4
    • Forum: Yamaha
  5. Mr A

    Speaker selector paddle for my Yamaha amp?

    Hello everyone. I sold a bass guitar to this guy and he offered me "an old hi-fi amp" for free. I was reluctant to take someone's rubbish at first, until I saw it. It turns out it's a Yamaha CA-810 and in almost perfect condition. It all works and sounds fantastic, but the only thing missing...
    • Mr A
    • Thread
    • amp ca-810 spares yamaha
    • Replies: 2
    • Forum: Yamaha
  6. 4343

    Yamaha P2100 Noisy on Power-On

    My P200 has started crackling when I first turn it on. After a while it stops making noise and sounds clean for hours. I think this must be a capacitor, possibly in the signal path. Has anyone seen this symptom before? Any ideas that can point me in the right direction to repair it? I'm not...
    • 4343
    • Thread
    • crackle noise p2100 yamaha
    • Replies: 9
    • Forum: Solid State
  7. D

    Did I potentially do damage?

    Hi there, long story short, I’ve got a Yamaha RS 202 and I’m using it with 70s midfi speakers (RTR EXP-12 8 ohm and an advent prodigy I 6 ohm, 4 ohm minimum). the other day, I hooked up both. I played them a little loud, not pushing it too hard, about 80 on the amp volume. The amps apparently...
    • djedee
    • Thread
    • advent amp clipping rtr yamaha
    • Replies: 8
    • Forum: Solid State
  8. ethan_tedw

    Yamaha K-320 Cassette Deck

    I just acquired this Yamaha K-320 from Goodwill for $10. It seems to be in good condition, and includes level meters. I mostly just listen to vinyl, so I was wondering if it’s possible to have the level meters on the cassette deck work while I listen to records? Sorry to ask, but I wasn’t able...
  9. Yamaha5000

    Axial Resistor, Fusing

    Anyone know where these can be purchased? Needing, all are 1/2w 3.9 Ohm 47 Ohm 68 Ohm 680 Ohm 220 Ohm
    • Yamaha5000
    • Thread
    • ca-1000 fuse resistor yamaha
    • Replies: 13
    • Forum: Yamaha
  10. M

    CR-800 Main amp problem

    I tested main amp with dummy 4.4ohm load with 1kHz signal and after positive signal clipping few seconds then fuses (F801-804) burned. Then I removed all main amp transistors TR717-720 (4pcs) and measured them, all was ok. Then I tested main amp board without main transistors and output voltages...
    • mikkoa79
    • Thread
    • cr-800 main amp yamaha
    • Replies: 3
    • Forum: Yamaha
  11. H

    Yamaha P2200 hum

    My P2200 was recapped by me and has been performing beautifully but has just developed a hum. Diagnostics listed below. Please can anyone suggest the most likely cause and likely location? All input sources disconnected, the hum is present. Hum can be made louder or even disappear, by rotating...
    • Hifibythekg
    • Thread
    • hum p2200 power amp yamaha
    • Replies: 38
    • Forum: Yamaha
  12. Yamaha5000

    Yamaha CA-1000 Transistor Substitution

    Seeking input to review this list to insure I have placed the correct substitute. Also needing other options that are not available
    • Yamaha5000
    • Thread
    • transistor equivalent yamaha yamaha ca-1000
    • Replies: 11
    • Forum: Yamaha
  13. BUZZARD437

    Yamaha YP-B4 for my first turn table (Help Thread).

    Greetings, I am 100% new to the TT world. I currently have a AT-LP60 that is about as basic as it gets. Well recently I found a used Yamaha YP-B4 for 25$ that was advertised as not working, but had power. So I thought, what the hell, what better way to get into it than fixing one. Anyway enough...
    • BUZZARD437
    • Thread
    • cartridge first help needle post stylus yamaha yp-b4
    • Replies: 59
    • Forum: Turntables
  14. montrecott

    Yamaha A-1020 accessory jacks question

    Question for Yamaha A-1020 owners: if the accessory jack jumpers on the back are removed, and those inputs are not plugged into an equalizer or anything else, will the amp still produce sound? Attached is a pic with the accessory jack jumpers in (lower left, below the phono inputs).
  15. 201bk

    Yamaha NS-670 woofer repair help needed

    Hi, Long story short I got scamed by seller. And now he won't admit that he has hidden this issue. He says that I have damaged the woofer. I was doing 10wpc tops and it's first time I've heard that you can damage woofer by decentralising it with proper usage. Everything looks fine with this...
    • 201bk
    • Thread
    • help issue ns-670 repair woofer yamaha
    • Replies: 34
    • Forum: Yamaha
  16. EifX

    Yamaha CR-640

    Hi There, I have got on of these on the bench and my knowledge is not advanced enough to handle the behaviour of the amp. When I first tested the amp with dummy-loads and signal generator en scoop. I just saw noise the pots and switches. After cleaning the pot and switches I tested it again and...
    • EifX
    • Thread
    • cr-640 learing yamaha
    • Replies: 2
    • Forum: Yamaha
  17. Yamaha5000

    Yamaha CT-600 Electrolytic Caps

    Electrolytic caps in the power supply and function board all measure greater than 20% over or under value. The exception is the 3.3uF caps, they measure per spec. These are all easy enough to replace, but my concern is the Tuner Board is also loaded with electrolytic caps, if I start pulling...
    • Yamaha5000
    • Thread
    • ct-600 tuner alignment yamaha yamaha ct
    • Replies: 5
    • Forum: Yamaha
  18. Yamaha5000

    How to verify original equipment specifications?

    Methods/procedures step by step? Required test equipment to perform these test?
    • Yamaha5000
    • Thread
    • audio analyzer spec test eqipment yamaha
    • Replies: 21
    • Forum: Yamaha
  19. canders7

    (AVR) No L/R sound until quick rise in volume level

    Hi! Hoping you all can help me with an AVR issue. Yamaha A-800 for reference. When powering the unit on, I get either one channel or no channels producing sound until I raise the volume sharply and to a high level. Then both channels will act normally and adjust with the volume normally. It...
  20. Sparzard

    Hooking up new Sub-Woofer

    Hello, Trying to hook-up sub-woofer to system but based upon directions I do not understand the hook-up between Pre-Amp/Receiver/Sub? Help needed... Directions tell me to use 2 sets of RCA cables, going from pre-amp to Sub & receiver to Sub but I do not have any additional RCA slots left on...
  21. C

    Yamaha NS-W1 Subwoofer - stopped powering on

    Was wondering why my bottom-end had gone away, my Yamaha NS-W1 from early 80's died. No light and no power. Took it to the bench, removed the bottom and side grills. I'm not electrically inclined at all. I have a multimeter and the service manual for it. Where do i start? No loose wires or...
    • cmarti02
    • Thread
    • power subwoofer yamaha
    • Replies: 9
    • Forum: Yamaha
  22. S

    Yamaha Speaker Connection

    Hi all, I've really enjoyed looking at this forum in recent months while shopping around for a 70s stereo receiver as an upgrade from the 90s Kenwood I've been using for years. For background, I am totally inexperienced with electrical repair. Last week I bought a Yamaha CR-450 for 70$ from...
    • sebby
    • Thread
    • cr-450 repair speaker wire connections yamaha
    • Replies: 10
    • Forum: Solid State
  23. S

    Yamaha CR-2020 Pre - C Transistor Matching

    What are the matching pairs that need to be changed out on the A and B boards if one (or more) transistor fails? I found a bad TR502 (2sc1213a - NPN) on board A and a bad TR504 (2sc1213a - NPN) on board B. I understand the transistors need to be replaced in PNP/NPN pairs. With that being...
    • SharkBait07
    • Thread
    • pre-c transistor matching yamaha yamaha cr-2020
    • Replies: 0
    • Forum: Yamaha
  24. H

    Reed relay test. Yamaha C-4 preamp.

    Can a reed relay be tested in situ? If so, how does one do this? The reed relay in question is a RL6442 - H132 (location RY301) in a Yamaha C4 preamp.
  25. kuene

    Lag/synch issues with HDMI Audio Extractor

    There was a thread a few years ago covering this, but it didn't have any resolution. I used to have a first generation Apple TV - which had a built in optical out for audio. I would run this output into my two channel Yamaha and use my stereo for movies/music (turning down the TV speakers...
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