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marantz

  1. jFF_Bulbo

    MARANTZ 300DC HELP.

    Hello AK'ers. i've finished the recap & restoration of my 300dc. abnd some problems are present. unit power on, relay clicks and it sound. DBT (100w lamp) shine i think so much. when connected to 120v, powers on, relay engages, and soun is present, but.. -DC OFFSET is 20-30mv on lef channel. -dc...
  2. kawaz1

    Marantz SR1020 transformer repair

    I picked up a 1995 Marantz SR1020 that is dead. The initial idea was to use the housing for a phono preamp, inspired on Bob Cordell's Vinyltrak. However, I'm very curious how the receiver performs and would like to make it work, before I decide whether to keep it as a receiver, or use it as a...
    • kawaz1
    • Thread
    • marantz sr1020 transformer repair
    • Replies: 21
    • Forum: DIY
  3. AudioScout

    Marantz 2275 Receiver - No Sound Left Channel

    Receiver: Marantz 2275 Problem: No sound, left channel. (Both Speaker and Headphone) What I've done so far: Connected the main out and in via RCA and swapped the cables. Left Channel still out. Swapped P700 Output board positions. left Channel still out. Swapped Output capacitor positions...
  4. B

    Marantz Model 25 Project

    I bought a Marantz Model 25 last month and it actually sounds and looks great, so I've been using it as my main system while I finish work on a couple other receivers. But this thing is supposedly from around 1969-1971, so it surely needs to be re-capped at minimum. I'll document the process...
  5. quadmatrix82

    Marantz 250M - odd resistor values in circuit

    Hi all, so I have been doing some preventative maintenance on my Marantz 250M which seems to work well however I have noticed the left channel has many resistors that test low in circuit compared with the right channel - when tested out of circuit all these resistors measure fine. what could be...
  6. B

    Marantz Model 25 transistor substitutions

    I'm about to re-cap and possibly replace some transistors on a Marantz Model 25. It currently sounds fine, so I don't want to do anything unnecessary, but I'd like to replace any transistors that are known to be problematic. I've checked the Top Ten Worst Transistors list and don't see any of...
  7. pecata35

    Help on German vs Japanese amplifiers

    Hello, I want to know if someone have heard German amps like: Telefunken, Dual or Saba (I don't know if it's German but i can find it too) Have someone heard: DUAL - CV-1700 / 1600 TELEFUNKEN - TA 350 / 750, STM-1 / STP-1, RM 300/RP 300 SABA - VS2160, MI 215 I have heard Telefunken Ta 350 but...
    • pecata35
    • Thread
    • dual cv 1700 dual cv-1600 kenwood marantz pioneer saba mi 215 saba vs2160 sansui telefunken ta 350 telefunken ta 750
    • Replies: 19
    • Forum: Solid State
  8. L

    Marantz 2285 hunting a buzz

    Hi dear members I am chasing/hunting down a buzz in the speakers that seems to go down (still present) when touching the metal stem of the volume potentiometer. Connecting the metal casing of the potentiometer to ground does not seem to make any difference.
  9. Mat86

    Marantz 2225 lights stopped. All of them.

    Long story short, I was finally getting around to changing the tuner pointer light, had my replacement set and tested it before soldering to see it looked the right shade. Went to get my iron out and some heatshrink tubing and when I walked back in the room all the lights were off. All of them...
  10. J

    Marantz CD 65 dark display

    Hi, I got a Marantz CD 65 CD Player that works just fine but sometimes the Display doesn't want to come on and just stays dark but the cd player plays well. After turning it on and off several times the display sometimes comes on and workjs perfectly. anyone any ideas, what might be wrong with...
  11. R

    Power switch snubber replacement Marantz 1180dc need help

    Hello, while waiting for power switch replacement, i want to replace thiss snubber too, but its marking already disappeared maybe because of over bath lube from previous owner. My Marantz 1180dc is European version. In manual there is 2 caps snubber stuff but totally different than reality. In...
  12. R

    DBT faint but never unlit.

    Hello, i have Marantz 1180dc, power it up with DBT. Before i make a thread in Marantz sub forum but its different story, but maybe i was in the wrong subforum, is it ok to make new thread here? Full story is in here...
  13. Mat86

    Marantz 2225 left channel sucks when using phono - what gives?

    Not sure how long it's been like this, but I've always felt these speakers didnt have good bass so I'd compensate with tone controls, but this weekend I decided to sit down and measure both with a sine sweep on an app and I was shocked when everything sounded fine. But, I was using my laptop and...
  14. P

    Marantz PM100 meter display

    Marantz pm100 amp has a meter display. You can toggle between it measuring up to 120w vs 1.2 watts. In this picture I have it at the 1.2w display setting, which uses the numbers in the middle. According to this I am only using .15w per speaker? My speakers are rated for 35w continuous power at 6...
  15. Stereoboy70

    5010 VU meter issue

    Hello , I picked up a Marantz 5010 cassette deck for $50. Had to clean and work all the mechanicals and install new belts. The only issue I’m having now is that when I press the play button the Left meter pegs out to the right and flutters. It doesn’t matter if there is a tape in it or not...
  16. B

    Marantz 2215 hiss and hum

    Hi, I have a 2215 (non-B) that has an audible hiss and some hum. I'd like to try fixing this myself, but I don't know if I want to do a full re-cap and replace all transistors, etc. if I can narrow down the cause. I'd like to start by fixing the circuit(s) that needs fixing if possible. I...
  17. dswann01

    Southeast U.S. Marantz Tech

    I am searching for a good vintage Marantz tech in the southeast area of U.S. I am in Birmingham, AL. I have a SM-7 power amp that has a power output issue (operates at approx. half of the gain than was previously normal after a "pop" thru the speakers during moderate playback, judging by the...
  18. Rectilinear1

    The History Of Marantz

    Hey all! I came across this epic video on YouTube which outlines the detailed history of one of the most iconic brands in audio history, Marantz. Please watch and enjoy! :) Feel free to comment!
  19. N

    TANNOY EYRIS DC1 TWEETER

    Hello everyone, i just bought a pair of Tannoy Eyris DC1 from a garage sale. I tried to connect on my amplifier but the tweeters on the upper part has no sound. the tweeters on the center of the woofer are working fine. i tried to remove the upper tweeters and tried another tweeters and still no...
    • nicolas25
    • Thread
    • bowers elac gryphon marantz pioneer polk audio sansui tannoy wilson audio
    • Replies: 8
    • Forum: Speakers
  20. C

    Finally...another Marantz 1150!

    I have just bought a Marantz 1150, to scratch an itch I've had for 25 years, ever since I was told that my previous 1150 was toast, (because it was scratchy in the right channel) and they'd "dispose of it for me" Needless to say, that brought howls of anguish from the reputable audio tech to...
  21. dswann01

    Marantz SM-7 Problem

    Hoping that some of you guys may be able to help with a recent problem. I have a Marantz SM-7 amp that I use with a Yamaha CA-810 integrated amp as preamp. While listening at very moderate volume this weekend there was a pop thru the speakers and an immediate drop in volume in both channels to...
  22. quadmatrix82

    Marantz 2500 scope help

    Hi Marantz 2500 experts, hoping to get some guidance on repairing a Marantz 2500 scope, there’s no centre dot and whilst works otherwise the scope display is pretty faint, I tried adjusting the the rear adjustments but not much difference. AM and FM okay great very strong signal on all stations...
  23. R

    Help Need Guide Restoring Marantz 1180dc / 1180 dc

    Hello, I need help and guidance to restore my Marantz 1180dc with distortion sound. First i want to tell the story when i get the Marantz 1180DC. I bought online with help of some AK members. It is singing, i feel it distortion, and when rotating the volume knob, we must rotate it until 10...
  24. V

    Any Information on these Marantz 22M Speakers

  25. kasbah512

    Marantz 2215B: WEIRD Distortion

    Above I have my scope attached to the volume pot in yellow, and the output of the toneboard in blue. This is with a low volume setting This is with a high volume setting. Ive tried disconnecting the jumpers on the toneboard output and i still get the same output as before. The unit was...
    • kasbah512
    • Thread
    • distortion marantz marantz 2215b toneboard
    • Replies: 3
    • Forum: Solid State
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