iFixit - Answers With Device "Home Audio Amplifier"

Kicker CXA300.1: This amplifier are not connected with bluetooth

Thu, 16 Apr 2026 03:42:24 -0700

This amplifier are not connected with bluetooth

After damage

Home Audio Amplifier: Why does my bass and volume buttons make scratchy noise and bass go aw

Thu, 16 Apr 2026 03:17:41 -0700

buttons not working properly and why does the bass goes suddenly off and volume

Home Audio Amplifier: Why does only one of the two channels work

Thu, 26 Feb 2026 23:55:16 -0700

Amplifier only play on one channel

⟐ Commented February 26, 2026 at 23:55 MST

Frequency Amplifier Marshall Kilburn: Why doesn't produce sound on the speakers

Wed, 25 Feb 2026 19:59:00 -0700

My mini amplifier I have 2 years using it and it doesn't provide any sound on the speakers I don't know why course I opened it n checked the power board is fine n the is no sign of blown devices

⟐ Commented February 25, 2026 at 19:59 MST

Home Audio Amplifier: Crown Cdi 1000, both ch. signal LED’s jumping, no input audio, no out

Wed, 26 Nov 2025 21:55:59 -0700

I have a Cown CDi 1000 that’s has movement in the signal LEDs on both channels , it bounces from 1 green to two. The problem is that this happens when no signal is being applied and when you do send signal you get no audio nor do the LEDs react. Has anyone had this expierence? This is a dual channel issue, no faults. Any thought on where I should poke around? This CDi1000 is a 2009 model, I repaired the power supply, mainly the kick start area, the 48.7k resistors were pretty toasty, who ever had it before me did a number on C196 so that was replaced too. Could U14 cause this kind of issue?

⟐ Answered November 26, 2025 at 21:55 MST

Home Audio Amplifier: XTC Amplifier magnet Wire has been burned,need help

Wed, 26 Nov 2025 04:22:02 -0700

My magnet wire have just bust by just putting 8 guage performance power cable on a car battery

Home Audio Amplifier: Sansui AU-X410R - no bias voltage on either channel. PIC incl.

Thu, 16 Oct 2025 23:06:36 -0700

Hi guys,

a little stumped with this one. I picked the amp up for next to nothing from a local charity shop. Fired it up via my dim bulb, and it worked, but only just. The output/volume is extremely low. I measured voltage across the emitter resistors, and I'm getting 0 on all 4 of them.

I have checked the power section, and the main rails, and I'm getting around 45v per rail, so that seems ok, Output transistors appear to be ok, and measure fine.

To complicate matters, I cannot find a service manual/schematic for this amp anywhere.

Any help, pointer, tips, would be much appreciated!

Thanks!!

TEAC GSA-5300 stereo integrated amplifier: Doesn't want to take out sound when I connect to the speakers

Sat, 23 Aug 2025 09:21:07 -0700

Amplifier don't want to take out sound

⟐ Commented August 23, 2025 at 9:21 MST

Home Audio Amplifier: Denon PMA-757 Relay is not turning on

Fri, 25 Jul 2025 07:42:24 -0700

Hello,

I have a Denon PMA 757 and its power relay is not turning on. Therefore there is no power. All fuses are OK. My observations; 1) R301 is overheating 2) Transistors around R301 seems to be fine 3) All my measurements around R301 and transistors show +/- 50 V and this does not match some of the values indicated on Service Manual,

I would highly appreciate if someone can help me.

Thanks and best regards

Pioneer SA-1290: I want to install a Pioneer Z92 recording lighter separately from the

Sun, 27 Apr 2025 15:56:07 -0700

Turn on the Pioneer Home Recorder Lightlayer Model Z92

⟐ Commented April 27, 2025 at 15:56 MST

Home Audio Amplifier: No sound from my Sony EX 66 Amplifier

Mon, 21 Apr 2025 16:04:45 -0700

Everything seems to work but no sound comes out. It turned on I’ve tried switching to different functions but no sound. Any ideas how to fix this?

Home Audio Amplifier: Mon amplificateur à l’ouverture tombe sur la protection sans arrêt

Mon, 17 Mar 2025 15:43:50 -0700

Il click click

Home Audio Amplifier: My home surround sound amplifier seems to loose sound on the speakersd

Thu, 27 Feb 2025 22:19:27 -0700

My main speakers and subs loose sound as if overheating. After a while, the sound return and the whole process repeats it self. This is a Sansui amplifier

⟐ Commented February 27, 2025 at 22:19 MST

Astro Mixamp: Mixamp pro audio jack replacement

Fri, 31 Jan 2025 06:04:52 -0700

Hello, I have a Mixamp Pro from Astro. I believe the audio jack is unfortunately no good as any movement headset side of the 3.5mm jack causes it to become disconnected. I have also had to replace three headsets as the right ear keeps dying (different brands).

How could I go about replacing the audio jack on the Mixamp itself? Or how could I go about buying a new audio jack.

⟐ Edited by author January 31, 2025 at 6:04 MST

Home Audio Amplifier: NAD D 3045 firmware fail

Sun, 03 Nov 2024 05:42:40 -0700

I wouldn't be myself of course to leave something alone and enjoy it as it is ie plug it in and listen to music. After careful reading of the NAD website I discovered that there is a firmware update for the NAD D 3045.

I tried doing a firmware update from V115 to 2.11 and then to 2.07 when the previous one failed. The serial number is H86 so I thought all would be well. While the BT firmware installed correctly, the MCU firmware did not. The amp has an amber LED in standby mode, when I press the switch on the remote, twice, sometimes once it turns white, no response to touch or the physical ON button. Can you please help me? Is it possible to get the original software file somewhere? How does it need to be formatted and what size USB stick for this operation? I have been using a SanDIsk 64GB formatted to MS-DOS.

Regards,

Tom

⟐ Edited November 03, 2024 at 5:42 MST

Pioneer SA-1290: IC problem because of short circuit

Fri, 25 Oct 2024 01:02:14 -0700

IC problem because of short circuit

⟐ Answered October 25, 2024 at 1:02 MST

Home Audio Amplifier: The repair of amplifier

Sat, 03 Aug 2024 05:00:58 -0700

The amp is producing little noise.

Home Audio Amplifier: Why is my denon amplifier blowing fuses?

Sun, 28 Jul 2024 07:24:57 -0700

Why my DENON amplifier UD-M10 blowing fuse?

⟐ Edited July 28, 2024 at 7:24 MST

Home Audio Amplifier: como reparar el display

Tue, 13 Feb 2024 07:08:01 -0700

por que el display de mi amplificador american sound se ve intermitente. como puedo repararlo

Google Translate:

how to repair the display Why is the display on my American Sound amplifier flashing? how can I repair it

⟐ Commented February 13, 2024 at 7:08 MST

Home Audio Amplifier: My Yamaha Amplifier does not give out sound?

Thu, 19 Oct 2023 01:39:44 -0700

My Yamaha amplifier RX-V1500 there's no sound coming out of the speakers, what could be the cause?

⟐ Commented October 19, 2023 at 1:39 MST