20 Most Recent Pioneer VSX-D704S Receiver Questions & Answers

If you are in a fringe area you might need an external antenna to work with your tuner. Happens.

The volume knob is dirty. Behind the face of receiver the "pot", (as they are called) needs sprayed with contact cleaner. I use CRC QD contact cleaner. If the volume is a slider your can use the straw type devise for pin point spraying in the slider slot with receiver off and unplugged. After spraying work the slider back and forth to distribute the cleaner inside. If you have to remove the cover for a rotary "pot"spray while working the dial. Hope that helps..

http://www.managemylife.com/mmh/owner_manuals/25233/PIONEER-Receivers-97110213

Generally speaking, an amp protects itself from heat, shorts and overloads by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Hello,

Your unit being stuck in standby mode is an indication that its having a power problem. Remove its plug from the wall and fix it back into the wall, then turn it on again. If its still stuck in safe mode, then the power supply board in the unit is the cause of the problem.

The power supply board might be defective and maybe that's why the unit won't power up. Its receiving power but it cannot transfer the current to the necessary part of the unit because a capacitor, diode, etc may have been faulty. Until these bad components are replaced, the unit might not come on.

To actually find out what's wrong, you need to disassemble the unit with a screw driver and check what's wrong. You will be needing a meter in order to test the components on the power board, once you detect any bad component, you can make necessary replacement at any electronics accessories store withing our vicinity. This is the only way by which you can detect the problem.

Of course, testing the power board with a meter will require someone that has the ability. So it you can't, then you might be needing the help of a repairman or you can call a friend that has the ability to help you out.

I wish you the best of luck.

The problem shall be in the Power section of the amplifier. Check for burned transistors.

It is in protection and will need to be serviced. Find a local AUTHORIZED pioneer service center.

Have the speakers disconnected and turn on unit. If it still shuts down due to thermal protection the amplifier IC pack is damaged. Amplifier IC is tied to one side of the power supply by design. The left channel is probably shorted at the MOSFET on the pack. Nothing you can do but have it serviced. This is a common PIONEER failure.

there is a problem with the apeakers, the speaker feed wires or worse case is a blown audio output stage circuit in the amp. Good Luck

Replace the power supply.

Check the balance control. Apart from that the unit will have to be checked internally to ascertain where the signal is breaking down. This will require some skill and some equipment. My guess is it will be a dry solder joint or a dried out capacitor. If a capacitor looks 'leaky' or swollen, it is a good bet it is outside its tolerance and should be replaced. Sorry couldn't be any better help. Good luck.

You can't!Change the batteries in the remote and look at the front of the remote using the front facing selfie camera on a smartphone. Press the power button and see if you see a red or blue flash. If you don't see light the remote has failed.You can't do any advanced features without it. You can get a replacement.Replacement Remote Control for Pioneer VSX-1121 ...Amazon.cahttps://www.amazon.ca > Replacement-VSX-1121-VS...Replacement Remote Control for Pioneer VSX-1121 VSX-1021 VSX-1022K VSX-1020K VSX-818V VSX-522 VSX-523 VSX-517 VSX-520-S A/V Receiver Brand: MONSIATUG ; Sold by. Rating: 5 · ‎ 3 reviews · ‎ $19.95 · ‎ In stockUniversal Replacement Remote Control for Pioneer VSX ...Amazon.cahttps://www.amazon.ca > Universal-Replacement-VSX...Universal Replacement Remote Control for Pioneer VSX-9140TXH AXD7525 VSX-1021 VSX-1021-K 7.1-Channel Home Theater AV A/V Receiver System ; Ships from. Sure-Win.Rating: 4.7 · ‎ 8 reviews · ‎ $32.26 · ‎ In stockpioneer vsx-1021-k remote for saleeBayhttps://www.ebay.ca > schRemote Control For Pioneer A/V Receiver VSX-1021 VSX-1021-K VSX-47TX VSX-D939TX. Brand New. C $18.37. Was: C $19.33 5% off. Buy It Now. +C $5.26 shipping...

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Pioneer SX-R9 Service Manual

ManualsLib https://www.manualslib.com > ... > Amplifier > SX-R9 View and Download Pioneer SX-R9 service manual online. Stereo Tuner amplifier. SX-R9 amplifier pdf manual download. Or find a local audio technician.

See page 6 of user manual. It tells the sequence of initial setup. See page 23 of user manual. It tells TV and Playback connections and setting up your devices. See page 102 for troubleshooting. XRB3109A (pioneerelectronics.com)

A PD-M403 is a CD player, nothing else and you require an amplifier to drive a loudspeaker unless you have a 'powered' loudspeaker.

See troubleshooting section on page 50 of user manual XRB3004-A (pioneerelectronics.com)