Após alguns segundos ligado, apresenta a mensagem PROTECT e desliga o equipamento. Fiz o reset (presssionado o o botão power por 5 segundos) e a limpeza. O equipamento funcionou perfeitamente. No dia seguinte, voltou a apresentar a mensagem e o receiver não funcionou mais.

Any ideas?

(I would have put this as a comment, but needed more words. I would have edited my original post, but couldn't upload pics on an edit.) Every once in a long while, the lights on the front of the power amp will light briefly and then die, but 98 percent of the time, nothing. I have opened it up, and here is the power path:

There is the plug/fuse combo:

As you can see, there is a green/yellow ground. There is a black wire that goes straight into the heart (massive heavy cylinder of wires) of the amp. There is another black wire with a capacitor (I think?) directly after the plug. This wire goes to the switch in the front, which is a simple push button. There is a blue wire coming out of the switch back into the heart of the amp, completing the circuit.

The rest of the components (led board, input boards, output boards, volume knobs) seem irrelevant because it's not getting power at tall (but I could be wrong). Here's a pic of the entire setup:

Any ideas? I am not an electrician, so please use small words :)

⟐ Commented agosto 02, 2026 at 19:01 GMT-7

There is also heavy corrosion or debris near the power transistors and surrounding resistors (including a 1W10R resistor).

I need help identifying what caused this failure and what the best approach is for cleaning and repairing the board. Specifically:

What is the likely source of the brown debris (insect nesting, capacitor leak, or just dust)?

How can I identify the burned connector to find a replacement?

What other components should I test that are commonly linked to this type of failure in Dixon amplifiers?

I have a multimeter and am comfortable with basic soldering

⟐ Commented abril 29, 2026 at 8:16 GMT-7

⟐ Commented abril 19, 2026 at 6:49 GMT-7

⟐ Commented abril 18, 2026 at 7:00 GMT-7

After damage

⟐ Answered março 30, 2026 at 5:33 GMT-7

⟐ Commented fevereiro 26, 2026 at 23:55 GMT-7

Hi,I am repairing an audio power amplifier…I don't see any damaged parts but the light bulb indicates that it has a big short circuit…its peavey cs 2000 power amplifier

pls help

⟐ Commented fevereiro 25, 2026 at 0:39 GMT-7

⟐ Answer edited fevereiro 24, 2026 at 8:17 GMT-7

Gow i can fix it

I have CONNECT a pair of tower speaker that never used or test BEFORE,

Do you think that speaker can blow a power transistor and display now protect on display

Any ideas

⟐ Answered fevereiro 01, 2026 at 7:39 GMT-7

⟐ Answered janeiro 25, 2026 at 21:53 GMT-7

⟐ Answered novembro 26, 2025 at 21:55 GMT-7

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!!

⟐ Answered outubro 13, 2025 at 8:50 GMT-7

We’ve checked the speaker wires. Receiver turns on. Amp shorts out after a crackle-hum sound.

any advice for repairing this?

⟐ Commented setembro 16, 2025 at 3:48 GMT-7