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service

  1. Schmurpy

    Manual for Project One Mark 1500, or Telefunken TR-1500 DC.

    Hello, does anyone have the manual for either the Project One Mark 1500, or Telefunken TR-1500 DC?
    • Schmurpy
    • Thread
    • bias documentation information offset pacific stereo rare receiver repair restore service
    • Replies: 0
    • Forum: General Audio Discussion
  2. bonesbiggis

    Classe audio ca-150 power amp swap output transistors to MJL21194G from 2SC4029 good or bad ide ?

    I have found some burned 2SC4029 and 2SA1553 output transistors. I also found some new MJL transistors laying around. Is it god idea to swap to MJL21194G and MJL21193G ?? What different dose it make to the sound and funktion off the amp ? In the manual is it MJL transistors. Why is the amp...
    • bonesbiggis
    • Thread
    • modifications of classe ca-150 output transistors rebuild repair service
    • Replies: 2
    • Forum: Solid State
  3. J

    High end amplifier repair and service engineer required. UK.

    Hi All, I am in need of a well regarded and trusted service engineer for some older high end amps. Based in the UK. Specifically; Mark Levinson 33h, 334 & 27.5 ECS EA-2 Currently the ECS is the only amplifier which actually needs repair - dropping out on one channel. God help me when the...
    • Josh b
    • Thread
    • repair repair advice repair advice help needed service
    • Replies: 1
    • Forum: Solid State
  4. A

    Nikko Alpha III 8 ohm to 4 ohm

    hi i have a nikko alpha III it is 8-16 ohm Rated buuuut i just figured out later in the nikko production they did something to make them 4 ohm compatible i know this because a guy is selling one and had some but not much useful info if anybody knows anything please announce it i´d be have happy...
  5. D

    Pioneer PL-A45D - Sourcing Microswitch(es)

    Good morning all, I've had a Pioneer PL-A45D for a while now and it's in *mostly* good shape. Could use some lubing up and all, but the auto return works and the sound is good. Nice! Problem is, it suffers from that intermittent buzzing issue that many of these units exhibit. This has been...
  6. J

    Mitsubishi DA-A30 sounded "meh". In need of service?

    I recently bought a Mitsy DA-A30 on FB marketplace for only $50 because the owner suspected it was broken. Turns out it was not broken, just has a non-functional "on" light. Lucky me. I was excited about this because it's my first foray into separates and into vintage gear. I also bought a PS...
    • jdaquino
    • Thread
    • da-a30 mitsubishi service
    • Replies: 0
    • Forum: DIY
  7. E

    Sharp RP-117

    Does anyone have any insight on the Sharp RP-117. I am working on restoring one my girlfriend bought me and I’ve replaced both belts and 3d printed a new gear for the open and close tray. But for some reason the darn thing doesn’t close all the way. I feel like the metal plate on the tray...
    • EliasB
    • Thread
    • fix help open/close rp-117 service sharp
    • Replies: 0
    • Forum: Turntables
  8. T

    Avante Imperio service manual

    Hello. I am looking for a service manual or a photo of the power supply PCB for the AVANTE IMPERIO loudspeaker. The power supply has failed and I am unable to read the resistance of the two resistors marked in the photo. the resistors are hidden under a layer of silicone used by the...
    • ThorinB
    • Thread
    • avante imperio manual pcb power supply service
    • Replies: 1
    • Forum: Speakers
  9. Roman68

    Oil change in Telefunken st 850.

    Good afternoon. I would like to ask about changing the oil in the engine of this turntable. A couple of days ago I bought a Telefunken st 850 for 15 euros. It turns on, maintains speed, the tonearm works, I washed the bearings in gasoline. I am interested in the issue of engine maintenance...
    • Roman68
    • Thread
    • hi fi motor plattenspieler repair service telefunken telefunken st 850 turntable vinyl
    • Replies: 18
    • Forum: Turntables
  10. C

    Questions about servicing and powering up a Harman Kardon 630 for the first time in 30 years

    Hello, I recently inherited a old Harman Kardon 630 from my grandfather. They bought it new and was always super careful with there stuff and were really happy with it but "upgraded" to a black plastic pioneer in the late 80s and since then the Harman has been siting in it's box in a closet for...
  11. angelaudio

    Help with Heat Damage on PCB of Mitsubishi DA-A30

    I opened up my Mitsubishi DA-A30 to set the idle current and center potential adjustment and immediately noticed some heat stress marks on one of the PCB boards (CTL-56). It appears that the heat stress is right underneath two 820ohm 2W resistors R313 & R314 No other part of any other board...
  12. A

    Revox A77 service technician in Melbourne Australia

    Hi Are there any technicians who can service Revox A77 in Melbourne Australia. I have one and looking to get it fully serviced thanks
    • apt4kiwi
    • Thread
    • reel to reel revox a77 service
    • Replies: 0
    • Forum: Tape
  13. gmjunkyard

    reputable service in my area sx-1980

    Hello fellow members, I own a "Monster" SX-1980. My FM tuner is completely useless at the moment. It was functioning perfectly up until a few years ago. Since then I purchased an Onkyo Tuner as a substitute "fix". I'm ready to have the Monster repaired. I live in Central North Carolina...
  14. mymonkey

    Am I Being Ureasonable?

    I have an "Etiquette" question for anyone who has ever had vintage gear serviced by a local tech. In this case, the tech is a recommendation / referral from a respected high end audio dealer. Let's call the tech, BOB. I called BOB with a dead Yamaha CA-810 Integrated Amp and a working...
  15. badspell68

    Vintage Audio Receiver Repair in PA or Bucks PA?

    Anyone have a recommendation for a QUALITY and EXPERIANCED vintage Audio repair person in the PA or Busks PA area. So many of these shops are sloppy and brutal on vintage equipment and I need the real deal, an engineer repair type. Have a Yamaha CR-2040 that needs Caps replaced and fine tuning...
  16. Dr. Jackson

    Final manual for the Yamaha Px-3

    Px-3 owners, do you think there's a market for the original manual, professionally reproduced? I have the last copy of the px-3 service manual from Yamaha USA. It comes complete with handwritten service notes including part replacement numbers and some other tips. Also has the fold out full...
  17. T

    technics se-9200 bias adjustment?

    I am currently working on a se-9200 power amp that really does not need that much work. I adjusted the dc offset on the speaker leads to 0.00 volts however I also wanted to adjust the bias but I couldn't really find anything about this in the service manual. I was expecting maybe a target...
  18. xchg.ca

    Need service manual for Luxman KX-101

    Got this 1983 beauty just over the weekend Looks like need some cleaning and Servo Face is not operational - which I do not think it is going to be a problem to fix. But for general tuneup and calibration I need service manual Cannot find one May be someone somewhere has a scan of the Service...
    • xchg.ca
    • Thread
    • kx-101 luxman manual service
    • Replies: 22
    • Forum: Tape
  19. Kelso1

    Restoration/repair services for Technics SL-7

    I'm located in the Kansas City area and looking to have my turntable repaired. It has operated faithfully with minimal needs. Recently, I'm having a random skating issue. I believe it's time to have this 40+ year old unit freshened up. Do any of you have recommendations on a top quality facility...
    • Kelso1
    • Thread
    • restoration service sl-7 technics
    • Replies: 6
    • Forum: Turntables
  20. BUZZARD437

    Sony PS 5520 service help

    Greetings! I recently picked up a Sony PS-5520 turntable and need to start a forum to help me bring it back to life. My initial question has to do with the corky saw dust like spring cushions that go under the inner compression springs. Sony's part number for the spring is 4-804-634-11 and the...
  21. T

    Nakamichi cr-4e service?

    I bought a nakamichi cr-4e second hand and was planning on using it as my personal cassette deck but I noticed that recording with this deck doesn't net that great of a result. Everything I record with it sounds like it's missing several small pieces throughout the recording if that makes sense...
    • TrevorBarten
    • Thread
    • cassette nakamichi service
    • Replies: 15
    • Forum: Tape
  22. dankik

    Luxman T12 Tuner SM, Anyone?

    Greetings - Does anyone know where I could find a Luxman T12 Tuner service manual. I have a schematic, but I can't seem to find the SM anywhere online. Help would be appreciated. Thanks.
    • dankik
    • Thread
    • luxman manual schematic service t12
    • Replies: 0
    • Forum: Tuners
  23. razpones

    JVC R-X300 getting rid of popping and scratching sounds & new LED fuse lightbulb

    I got this receiver from goodwill and the sound at first power up was not great, the volume and balance controls were very dirty and there was no way to control the volume, the balance was not working. So i shot some contact cleaner thru the front panel without undoing anything to see if I could...
  24. T

    Dual hs 36 Ceramic cartridge pre amp for MM carts?

    Not too sure if this is the correct board to ask this but I was servicing a hs 36 and I wanted to replace the original ceramic cartridge with a MM cartridge until I realised that the pre amplifier is only built for ceramic cartridges. Is there any easy way to modify the internal circuit of the...
    • TrevorBarten
    • Thread
    • dual modification phono pre amplifier repair service
    • Replies: 3
    • Forum: Solid State
  25. SingleReel

    Luxman L-100 woes

    I have owned this Luxman L-100U for about two years now and it seems this unit has been nothing but constant trouble. I know it was serviced before I purchased it and it immediately had problems. I decided to have it serviced by a long time professional and he claimed the last Tech did him no...
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