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dc

  1. C

    Pioneer RT-707 Servo Board Troubles

    Hey all, I'm trying to get an RT-707 back into shape. It had been worked on before, caps that see the most usage have been replaced and the problematic small signal transistors that keep up the recording bias have been replaced with modern subs as well. It doesn't response to any speed...
    • CaseyWKC
    • Thread
    • bridge rectifier dc no control pioneer rt 707 servo assembly board speed issues swings
    • Replies: 7
    • Forum: Pioneer Audio
  2. Levy4u

    Yamaha RX-V685 Entering Protect Mode: Need Troubleshooting Help

    Hello everyone, I've run into an issue with my Yamaha RX-V685 receiver. It's about 3 years old and has recently entered protect mode with the error "DC PRT: 255". When I turn it on, it shuts off within about 3 seconds. I'm comfortable with electronics, have a multimeter, esr tester, just have...
    • Levy4u
    • Thread
    • dc protect rx-v685 yamaha
    • Replies: 8
    • Forum: Yamaha
  3. dyehardfan

    DC Power Supply Cable Pinout

    If I've posted this to the wrong forum, I apologize. I would very much appreciate it if someone could help me figure out which cable I need? Scenario - DC Linear Power Supply with center positive output. Technics SL-10 uses a center negative plug. I am looking at cables I have the option of...
  4. H

    Yamaha C-4 dc fluctuation

    Has anyone got a Yamaha C4 in which the DC maintains a stable readout within + /- 200mV of 0mV? If so, how close to 0mV has been achieved? And did any component(s) need replacement to achieve this? My understanding is that it’s actually very common to for this preamp to produce the full range...
    • Hifibythekg
    • Thread
    • c-4 dc dc adjustment yamaha
    • Replies: 4
    • Forum: Yamaha
  5. M

    NAD 2200PE DC Voltage Spike on Power Off

    Hello Forum, I posted this to an old forum that didn't get any traction, so I'm posting new. I have a NAD 2200PE that works just fine (kinda). I also tested the tp voltages and they are fine too. I adjusted the DC offset and idle voltages to within parameters. This unit did need new speaker...
    • mohare134
    • Thread
    • dc nad pop solid state amplifier vintage amplifier
    • Replies: 11
    • Forum: Solid State
  6. Sp33ls

    Sansui AU-999 DC problems?

    Hey all! First of all, thanks for all the assistance. There's so many great resources here on these forums for this little amplifier. I've replaced all the electrolytics, and the usual problem transistors. I've even swapped some of the larger value resistors with new, Vishay metal film. I've...
  7. Cody AOC

    Kenwood Basic M2

    Hi so recently I bought a Kenwood Basic M2 amplifier off someone for $5 yes it does work but it does not have the 2 prong power entry connector. Somebody took it off and it's not anywhere but I can't seem to find a replacement for it this is one of the units that has a voltage selector on the...
  8. 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...
  9. Salbreth1

    Rebuilding 300DC. I love this amp...

    I'm starting this guy today and thought I'd share. This is one of my favorites. It sounds so transparent to me. Anyway, let the fun begin!
  10. bradscoolio

    [FIX] Pro-Ject Debut Carbon DC Hum [FIX]

    Heya Fellas' Ground your pre-amp to the ground lead of the turntables power lead, the end that plugs into the rear of the turntable (I just wrapped a cable around it and forced it in :P), as well as the regular ground post. There must be a resistance between the ground on the power lead and the...
    • bradscoolio
    • Thread
    • carbon dc ground loop hum pro-ject project turntable
    • Replies: 8
    • Forum: Turntables
  11. marantz 170dc

    marantz 170dc

    marantz 170dc sounds wonderful
    • Joe19582001
    • Media item
    • 170 dc marantz
    • Comments: 0
    • Category: Member Galleries
  12. marantz 170dc

    marantz 170dc

    marantz 170dc sounds wonderful
    • Joe19582001
    • Media item
    • 170 dc marantz
    • Comments: 0
    • Category: Member Galleries
  13. marantz 170dc

    marantz 170dc

    marantz 170dc sounds wonderful
    • Joe19582001
    • Media item
    • 170 dc marantz
    • Comments: 0
    • Category: Member Galleries
  14. marantz 1300 DC

    marantz 1300 DC

    marantz combined a 3650 pre-amp & a 300 DC amp to come up with this integrated unit. Separate & isolated power supplies were a nice touch.
    • marantz1300dc
    • Media item
    • & 1300 300 3650 = amp dc pre
    • Comments: 1
    • Category: Marantz Gallery
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