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Pioneer vsx 7500

I have a Pioneer Vsx-7500s the sound is working fine, but there is no signal displaying. You can hear it but it will not tell/signal if it's working or not.

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  • Contributor
  • 57 Answers

Dead display? not a problem, as long as the sound is there.

Posted on Apr 27, 2014

6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

techman
  • 3130 Answers

SOURCE: Pioneer VSX-804RDS

Its really7 a hard thing to say what the problem could be. It could be the stanby power supply. The power switch the power transformer. with out troubleshooting skills it in your best interest to seek a pro to troubleshoot this for you. You could cause alot more problems by touyching the wrong things if your not carefull. Good Luck

Posted on May 09, 2006

robotek
  • 1512 Answers

SOURCE: vsx-9900s

Hi angelo40

The amp sounds like it has a primary power supply failure and/or may be in protection mode. First, I would check for any blown fuses, replace any you fint with exactly the same type and rating. I can advise you here if you are not sure. If the unit blows a fuse after replace any failed ones, then there is a short circuit that you will have to trace out in the unit. DONT KEEP REPLACEING A BLOWING FUSE You generally are just doing more damage to the amp.

If all the fuses are OK and you are savvy with electronics and soldering, you could open it right inspect for these problems., and you have a multimeter, do some powersupply voltage checks, also check for that the main transformer is ok. Resolder any dry joints you find.

It may also (and or) have a problem in the output stages. Running it hard may have produced some dry solder joints, or blown a transistor in the output array. Happy to advise you further, just ask :)

regards
Graeme

Posted on Apr 21, 2008

  • 30 Answers

SOURCE: Relay clicks, no display only the volume lights

Hello,
This is a common problem with a few of the Pioneer of that era (VSX-3300, 3700, etc). A secundary power supply line is faulty and it prevents your display from working. It is not an easy DIY, but a local tech should be able to fix. It is not always the same exact cause, as there are a couple transistors, a zener diode and a cap that can fail.
You can continue to use it without any detrimental effects on the unit, and can guess the settings.
Good luck

Posted on Aug 03, 2009

diodeic
  • 1622 Answers

SOURCE: Pioneer vsx 511 amp error

Hello

There are two IC links on the main PCB (Printed Circuit Board) labelled IC604 w522 491010 and IC605 w522 491010 these should measure open circuit (damaged).

The PCB has a warning:
Caution: Replace IC links as marked manufactured by Littlefuse Inc

Finding replacement IC will solve the problem.

I do hope that my information is acceptable.

Posted on Apr 05, 2011

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1 Answer

Power sub woofer is not working on my pioneer vsx-81txv everything is working all the speakers except the power sub connection at the back all i can hear is the hissing sound when i try to connect the sub...


Hissing? How loud? A sub isn't even capable of making high frequency sounds at normal volumes.

The Pioneer manual would tell you how to enable and test the subwoofer output.
Page 17 and the MACCV procedures on Page 33 (auto) or 43 (manual)

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http://www.retrevo.com/support/Pioneer-VSX-D411-Receivers-manual/id/385ci976/t/2/

I believe it's trying to tell you something is wrong with its digital sound processing.

This was the best source I could find on it:
http://www.avforums.com/forums/av-amplifiers-receivers/381823-problem-pio-vsx811s-no-sound-display-says-dsp-ng.html


If you switch it to satereo / direct and the light goes out I'd say that would clinch it.

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I would say check the cable version not everyone knows this but there are different version HDMI cables such as 1.0,1.1,1.2 and the newest 1.3 cable these are band-with depended cables and if you use a lower version this should work if not you might have a issue with video.

Other then that you might have a issue with the unit if all other signals are working on the monitor.. Ruling out this will be hard if you do not have another monitor to test it on. I would be conducting a test on other output monitors and see if you get any results.

please press the accept button as I worked hard to answer you question.

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Make sure that the sound field/programme you have selected is dolby digital not stereo.(On the amp)
You also need to check on the display that is says DIGITAL not ANOLOUGE, as only a digital input, Optical fibre cable, HDMI, COAX will be a digital signal.
If you are using red and white rca connectors, it is not going to work, as this is an Anolouge signal.

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I have a pioneer vsx3700s receiver,can you tell me where i can find a schematic or repair manual for it?


www.stereomanuals.com
G12 price code = $21.00 + $2.00 shipping

Pioneer VSX-3700S AV Receiver Service Manual = G12
COMMENT: (1990) Also VSX-3600, VSX-3900S, VSX-3800, VSX-411S, VSX-401. (IMPORTANT NOTE) Circuit Diagrams and PCB Pattern Layouts (and Exploded View, Parts List) only, balance (if any) of manual on (1) (not included) microfiche card. There are some separate manuals which are almost entirely for the Remote Controls: for VSX-411S and VSX-401, see VSX-411S. for VSX-3900S and VSX-3800, see VSX-3900S.
STOCK# = PIOVSX3700S-SM
DESCRIPTION: 56 total pages (18 intentionally blank), constructed as the original including (almost entirely) 11in x 17in folded /trimmed pullout pages, card stock covers, neatly assembled with 5 staples and fiber reinforced taped spine. Models covered: VSX-3700S, VSX-3600, VSX-3900S, VSX-3800, VSX-411S, VSX-401. Overall quality is Very Good.

Feb 24, 2009 | Pioneer Audio Players & Recorders

1 Answer

Sub woofer


Hello,
The subwoofer is totally independent from your Pioneer VSX-D412. You can check if it works like you did with a finger on the hot point of the RCA cable (not very good test, as you will hear noise and can't say if that means it works OK) or better connect a known receiver to the speaker connections in the sub and test to see if it’s working properly.
Regarding the receiver, you may not have enabled the VSX to output to the sub. Read the manual on how to check for that. Only Dolby Digital 5.1 signals will allow the sub out, in a receiver of this level. It normally will not let you use the sub in stereo mode. Some more complex units will allow you that, but I believe not this model.
Good luck

Nov 01, 2008 | Pioneer VSX-D412 Receiver

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I have the same problem with my 49txi, and I called pioneer and a repair shop as well. Both told me that the 49txi has a known problem with over heating and that its boards unsolder themselves. I would have thought Pioneer would stand behind something this expensive, but that was the old Pioneer in the 80s, and the new Pioneer says we are on our own.

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Check the preamp Coupling Capacitor, which might have lost its value, or might have leaky dielectric.

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