iFixit - Answers With Device "Home Audio Receiver"

Onkyo TX-SR705: No sound output on any setting

Wed, 18 Mar 2026 08:23:42 -0700

I have no sound output

⟐ Answered March 18, 2026 at 8:23 MST

Home Audio Receiver: Marantz NR 1504 repair

Tue, 03 Mar 2026 20:22:21 -0700

I have a Marantz NR 1504. It turns on well, but no sound in the output.

I am a basic analogue geek. But this one is digital and i cannot trace faults.

I am an IT engineer and i have the basic skills.

Do you have a repair manual for this marantz receiver?

⟐ Commented March 03, 2026 at 20:22 MST

Home Audio Receiver: Marantz SR 92 Receiver

Wed, 18 Feb 2026 22:37:48 -0700

I have crackle sound on my right channel on my Marantz SR 92 receiver(volume "zero"). I have sent it out 3 times for repair, none are able to resolve this problem. Some website indicated that to resolve this, I need 4 transistors, a Mosfet and a resistor. If I can get the circuit diagram on the component location and component types (no.), I may be able to do it myself. SOS. Thanks.

⟐ Commented February 18, 2026 at 22:37 MST

Yamaha RX-V800: Comes on and clicks and goes off

Sun, 15 Feb 2026 10:04:21 -0700

It comes on clicks and go off

Home Audio Receiver: no sound one rear speaker

Wed, 28 Jan 2026 00:19:06 -0700

It Seems Like One Of The Rear Suround Sound Speaker Jacks On The Rear Of My (

Yamaha Natural Sound AV Receiver HTR-5450 ) Has Stop Outputting A Signal That

Go To One Of The Rear Suround Sound Speakers , The Other Side Still Plays .

Is There An Easy Fix To This Problem, HELP PLEASE ?

Mr. G.

⟐ Answered January 28, 2026 at 0:19 MST

Intergated Network AV Receiver AVR-1912: How to fix bluetooth paairing with other device

Mon, 26 Jan 2026 22:54:47 -0700

blueetooth pairing issue

Pioneer VSX-421-K: VSX-421 problem when powering from standby-mode

Sun, 18 Jan 2026 04:12:03 -0700

Hi, I have this reciever, I bought it faulty and replacing relays fixed all the problems but this one:
Reciever works normally until I turn it off/ put it in standby-mode and let it sit for some time. After that when I power it up it turns on but goes off in like 2 seconds. I have to reset it 1-3 times with enter+standby-button and after that it works again normally until I turn it off and let it sit for some time in standby-mode. I have not founded a schematic for this so it's difficult to troubleshoot. Inside it all looks really clean and no bulging capacitors or anything. When I press preset+standby, it gives only these: DC: 039, temp1: 00, temp2: 00, Over: 255. I have no idea what these mean :D How would you proceed to troubleshoot and can anyone tell me where to find the schematic for this model? Thanks!

⟐ Answer unaccepted January 18, 2026 at 4:12 MST

Pioneer VSX-824K: receiver HDMI light flashing

Wed, 14 Jan 2026 02:47:03 -0700

Pioneer VSX-824-K HDMI light flashing nothing works. can it be fixed or should I replace?

⟐ Commented January 14, 2026 at 2:47 MST

Home Audio Receiver: Harman Kardon AVR151/230 amber light blinking

Sun, 11 Jan 2026 14:48:49 -0700

Service center technician said the main board has to be replaced.

But they are not wiling to repair the main board in component level. Guess they prety much saves time but replacing the whole board rather than spend time locating the faulty component.

Can anyone give me a starting point to start diagnose the main board by myself. I’m a hobbyist and have slight knowledge of electronics.

So you can be technical with your answers.

Help would be highly appreciated!

⟐ Commented January 11, 2026 at 14:48 MST

Pioneer VSX-530: Why does it turn of rite after power on

Wed, 07 Jan 2026 05:13:58 -0700

Why does it do this

⟐ Answered January 07, 2026 at 5:13 MST

Solid State Logic SSL 2: Passive Speaker Output Fried Interface

Wed, 14 Jan 2026 05:54:18 -0700

Hello everyone!

So today I failed to use my brain - the following happened:

I tried to connect my vintage sony Hi-Fi-System to my SSL 2+ interface. Since it only has the red and black connectors for passive speakers as an output, I figured I'd simply make a makeshift cable and connect it to my interface. In the two inputs of my interface I plugged a double mono-jack to cinch cable. At the end of the cinch cable I wrapped around a wire so I could plug it into the output of the Hi-Fi player. It worked for 10 seconds, then a pop came through the speakers as if I had just unplugged them and the interface stopped working. For the most part at least.

What works:

-Power LED is on

-4k Buttons light up

-Gain LEDs work (on startup, shows gain when pushing the 4k button, blinks when dis-/enabling +48V)

-miscellanious buttons (I think)

-USB connection (is recognized by the PC, able to reset and update firmware)

What doesn't work (anymore sadly):

-input (not via mic, not via line)

-output (not via speakers, not via headphones)

What's weird:

-4k buttons glow very bright red when disabled (should be off), when enabled they glow slightly dimmer red

4k button engaged

4k button disengaged

back of the board

Question:

Since part of the electronics seem to still be working I'm hopeful I could try and repair it. However, I lack the knowledge to identify which part might be faulty. Where do I start looking? How do I do it? Is it even doable (maybe too small of a part to replace by hand?)

A few quick inspections don't seem to reveal any obvious faults like undone soldering spots or popped capacitors.

⟐ Answer edited January 14, 2026 at 5:54 MST

Pioneer VSX-821-K: No Power - not surge related

Tue, 30 Dec 2025 18:10:29 -0700

Used this receiver one day, the next it was dead. There was no power outage or surge. There is no display and not responding to the remote or switch. Checked all the power components and they appear to be okay. Getting power to the unit, but not going through the transformer on the power supply board. Relay is not clicking, not getting the signal to turn on. I tried to trace this problem, but I do not have the service manual for this unit and did not see it anywhere on the internet. Checked your site and you do not have it, but thought maybe you can help look for the problems. Any suggestions on what to check next?

⟐ Commented December 30, 2025 at 18:10 MST

Denon AVR-1909: My receiver automatically shut off.

Tue, 16 Dec 2025 01:30:35 -0700

My receiver turns on, but in under a minute, it automatically shuts off. What would cause this, and what is the solution to fix it?

⟐ Commented December 16, 2025 at 1:30 MST

Home Audio Receiver: Yamaha R-N602 no sound no display

Mon, 15 Dec 2025 10:30:16 -0700

I have a Yamaha R-N602, plug in, When I press front power button the standby indicator come ON, pressed remote power button. Nothing happened. …no sound no display.

Normally at power-up I use to hear 2 relay activate when the receiver was working, but now nothing.

Look like the power supply deliver a nice 5.5 VDC but this is the far I could go for now.

Any idea are welcome. Thanks

⟐ Answered December 15, 2025 at 10:30 MST

Home Audio Receiver: DENON AVR-2113 going into Protect

Sun, 30 Nov 2025 07:36:45 -0700

Hi guys, I'm back with a new AVR problem. Another junkshop find, this time a Denon AVR 2113.

When I first opened it up, the standby board was in a state. The TOP258MG had literally blown its lid, and there were badly damaged tracks etc. Anyways, I rebuilt that, and got the standby supply back.

While waiting for parts to arrived, I removed the main amp pcb, and found the FR channel had blown its fuseable resistors, its emitter resistors were open, and the two main output transistors were short. I replaced these components, checked the rest of the amp pcb, and reinstalled everything.

So this is where I am now: With everything plugged in and connected, the receiver will try to boot, but can't. It just clicks on and off constantly. Now if I unplug the power connector (CP403) from the amp pcb, the receiver boots up without any issues. So I thought there must be something wrong with the amp. Pulled it again, compared measurements, nothing. Can't find anything obvious.

I then measured the output of D4008 (bridge) that supplies HIGHB+ and HIGHB- and when the receiver boots, both HIGHB+ and HIGHB- climb to roughly 55v. When I power down, HIGHB- holds its 55v for ages, whilst HIGHB+ rapidly loses all its voltage. I'm not sure if this is telling of something or not? I'm thinking that perhaps this is a power supply issue and not an amp issue. Thoughts?

Thanks in advance!

⟐ Commented November 30, 2025 at 7:36 MST

pioneer vsx 1020: UE 33 flashing Firmware update...unattainable?

Fri, 14 Nov 2025 22:17:07 -0700

Can you still get the firmware update for the pioneer vsx 2010-k and if so where because the Pioneer site has an avr12 and that's it.

Pioneer VSX-530: will turn on then shuts right off

Wed, 15 Oct 2025 05:43:15 -0700

I have a pioneer VSX530 and I turn it on and it light up then shuts off right away

⟐ Answered October 15, 2025 at 5:43 MST

Pioneer VSX-821-K: No audio coming out of the speakers.

Mon, 13 Oct 2025 06:07:39 -0700

When all hooked up properly, I have no audio coming out of the speakers, can only hear a buzzing/hissing sound from all the speakers. It doesn't matter which input is selected, they all have the same issue. Even before selecting any input at all, you can hear the buzzing/hissing as soon as the unit is powered up. Any help would be much appreciated.

⟐ Commented October 13, 2025 at 6:07 MST

Sony Receiver STR-DA30ES: It turns on but No sound

Mon, 06 Oct 2025 18:39:18 -0700

It turns on But it doesn't have dound

Intergated Network AV Receiver AVR-1912: How to fix bluetooth?

Fri, 03 Oct 2025 19:25:45 -0700

bluetooth is not pairing with my ipad