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2325

  1. richardg0n

    Marantz 2325 No Headphones and No Speaker Terminal Output but Relay Clicks?

    Hi Guys, I am working on a 2325 restoration, and I can't figure out why the speaker terminals have no output, nor do the headphones. With a DBT connected the protection relay clicks two seconds after powering up. I am using my signal tracer to follow a 1k tone running through AUX and can trace...
  2. richardg0n

    Why Does the 2325 Power Supply Relay Function Only When Amp-Free

    Greeting AK, Looking for troubleshooting advice. Restoring another 2325, and after recapping PS, the relay on PS will not open/click when the amps are connected(powered and RCA connected). PS, amps, Pre, and PU01 have been recapped(see pics). Here is the sequence of steps I have taken to...
  3. richardg0n

    Pre Main RCA Internal Wire Chewed by Rat - PU01 Marantz 2325

    Greetings AK, Recapping the PU01 board on a 2325 and Found the blue shielded cable connected from PU01 to one of the RCA Pre inputs. Can someone please let me know what kind of wire I should use to replace this wire apparently chewed by a rat.
  4. richardg0n

    2325 Balance Slider Bypassed - No Left Right Stereo Separation

    Restoring a Marantz 2325, and the Balance Slider has no left-right separation. The volume is the same level except for the middle position, which is slightly louder. I tested with headphones on and with external speakers, and in both cases moving the balance slider potentiometer from left to...
  5. ocdecio

    Marantz 2325 2SA747 - low breakdown voltage

    I am working on the amp boards for a 2325 and checking the outputs I found one of them (A747) testing a breakdown voltage of 167V, whereas all others test 247V or so. Is that a sign that I should replace the whole set? Would replacing just the A747 with another pulled from a working unit be OK?
  6. runningdog

    Sub for circuit board edge insulators used on 2325 amps and preamp

    The 2325 has insulators on the edge of the preamp and main amp boards where they are held in place by brackets. Having finally run out, I'm looking for a substitute. If you have a favorite material to use to make one I'd love to hear about it.
  7. Ray122

    Help with Marantz 2325 Amp Rebuild

    Hey everyone. Been grappling with the amplifier section of amplifier section of Marantz Model 2325. When I received it, the left channel amplifier was keeping the unit in protection mode. When I disconnected that section and just ran it with the right channel amp, the unit comes out of...
    • Ray122
    • Thread
    • 2325 amplifer amplifier repair diy help marantz marantz repair marantz2325 repair solidstate
    • Replies: 5
    • Forum: Marantz Audio
  8. runningdog

    Marantz 2325 has high THD in both channels

    This 2325 had symptoms that included high Total Harmonic Distortion, made even worse with an 8 ohm load. While I was looking into this the receiver behaved inconsistently. This was after a rebuild. I set it aside in hopes that with a long rest it would fix itself. LOL. After digging in again...
  9. Ray122

    Help with Marantz 2325 Amp Rebuild

    Hey everyone. Been grappling with the amplifier section of amplifier section of Marantz Model 2325. When I received it, the left channel amplifier was keeping the unit in protection mode. When I disconnected that section and just ran it with the right channel amp, the unit comes out of...
    • Ray122
    • Thread
    • 2325 amplifer amplifier repair diy help marantz marantz repair marantz2325 repair solidstate
    • Replies: 4
    • Forum: DIY
  10. M

    Mechanical drawings of Marantz chassis

    Is anyone aware of the existence of mechanical drawings of Marantz receiver chassis? I’m doing some custom work for a 2225 and 2325 and want to ensure proper fitment, and engineering drawings (or the next best documents) are preferable to reverse engineering. Moreover, I don’t have physical...
    • Matt Giarra
    • Thread
    • 2225 2325 chassis dimensions drawings engineering marantz mechanical
    • Replies: 17
    • Forum: Marantz Audio
  11. richardg0n

    Marantz 2325 PU01 Multipath and Speaker Relay Short

    Hi Guys, My 2325 lost the right channel while playing music. Pushing the hi and low mutlipath buttons brought back the right channel temporaily. I decided to DeOxit the switches and pulled out PU01. The right channel output retuned and reinstalled PU01. The right channel again stopped working...
  12. richardg0n

    Marantz 2325 Losing Right Channel Input Before Pre

    Greetings AK, I am losing the right channel input before the pre(PE01) regardless of input(PHONO, FM, AUX). The unit was recapped/restored, including replacing broken Pre and Main RCA inputs in the rear, recapped Power Supply(P800), Phono(P400), Buffer Amp PH01, Dolby-Tone-Meter(PL01)...
  13. richiem46

    Starting my first 2325 Restoration and Looking for Guidance

    I just acquired a decent 2325 on the big auction site with the wood case. I received it several days ago and my first reaction was I could not believe how heavy the thing was! Even after removing the heavy wood case it is still a beast to move around the bench. The seller said the unit worked...
  14. ocdecio

    Marantz 2325 - 2SA720/2SC1318 proper subs

    I'm repairing an intermittent amp board. I tried replacing 2SA720/2SC1318 with KSA1013YTA/KSC2383YTA, it works starting off but in 5 minutes the channel cuts off. I put back the originals and everything works. Main reason for replacing is for reliability since these seem to be in the naughty...
  15. runningdog

    2325 has high distortion unless Hi Filter is on

    A newly rebuilt 2325 shows high distortion in both channels. THD is 0.200% if the Hi Filter is off. When turned on (pressed in) THD drops to a typical 0.004%. No other switch or control affects it. The distortion starts at about 1V output from the receiver, and then remains constant all the way...
  16. runningdog

    2325 PH01 buffer amplifier - one channel out

    This 2325 PH01 buffer amplifier is not passing the signal through one channel. I've found where the signal stops (at HH01), and that the voltage at its base is well below what it should be. HH01 and HH03 should both have 14.2V at their bases. HH01 has only 1.1v. This simplified schematic is...
  17. Mearle

    2325, Tape RL works, Aux L dead (why/fix)

    Hi Guys, I'm new here so I am just putting my first threads. I put my Marantz 2385 on the bench with Aux and Phono L channel dead, but Tape 1 & 2 I/P's were working fine. I found the trouble, but in the process, tracing these switches was a bit of a nightmare, I haven't been on the bench for 35...
  18. ocdecio

    2325 Dial - faded lettering

    Looking for suggestions on how to "repaint" the background on this dial. I may leave it alone if it can't be done properly, but if someone did this before I'd really like some ideas.
  19. Randy B

    2285B VS 2325??

    I use a 2285B for my daily driver and I love it. Just stumbled upon a 2325 and was wondering what the benefits would be. Before a plunk down a huge chunk of cash I thought I'd ask the pros. Any opinions about the pros and cons of the 2285b vs the 2325? I'm thinking about reliability (I'm a...
  20. W

    The Most Rare Marantz

    Good morning audiokarma! I am brand new to the site and wanted to get your opinion. I had the chance to purchase the most rare Marantz in perhaps the world! Why, because it is Marantz 2325 completely brand new, still sealed in the factory box!! I also have the original (nos) walnut case for it...
  21. richardg0n

    Marantz 2325 Pre-out female RCA short no sound

    Working on 2325 with left channel out. The sound output returned when I was using RCAs to test and crossing channels between Pre-out and Main. I noticed RCA was sensitive to touch on one of the Pre-Out RCA outputs causing the left channel sound to cut in and out. I used Deoxit D5 spray and...
  22. goldswimmerb

    Weird 2325 FM issue

    Hey guys, so I am working on a Marantz 2325 which is having a strange issue with the FM. Basically, the FM section takes time to warm up, when the unit is first turned on there is no sound, just a low rumble, about a minute later there is sound, but only FM mono and no signal meter deflecting...
  23. rustyhusky

    2325 FM Signal Strength Meter Issues

    I've been restoring a 2325 receiver and have run into a problem with the FM Signal Strength meter that has me stumped. In the 2325, the FM Signal Strength meter doubles as a "Dolby Level" meter. The meter is working when Dolby NR is enabled, and also works when AM is selected. Unfortunately...
  24. runningdog

    My dog hates Marantz 2325's

    Whenever I power up a 2325, my dog leaves the room, giving me a look on his way out. Whatever he hears goes away quickly, and he can be convinced to come back, as long as I promise not to do it again soon. This happens with lower wattage models too, but all 2325's are particularly annoying to...
  25. Will2225

    Marantz 2325 Value

    I've found a Marantz 2325 locally within about an hour and a half drive of me. I managed to get the seller down to 900. The seller claims it's in great shape and besides the LED mod that he did himself he says it's stock and that he bought it from the original owner. Fair price? And would it be...
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