Question about MA Audio HK4000D Car Audio Amplifier

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Thanks well im going to by a meter as soon as sears opens up how do you know if your amps blown and needs to be returned

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If your amp has ~12v DC on the remote and B+ terminals (with the black meter probe on the ground terminal of the amp) and no fuses are blown, the amp is defective.

Posted on Aug 16, 2008


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I have a top load F&P smart drive washing machine. It has been unplugged for two days.i have just plugged it in and the panel lit off briefly. When I push start button, nothing happens.

Hello Maureen Hooper,

I know this is going to sound poor... but check the power at the outlet first (good bet statistically)... Visually inspect the cord for any damage.

If you have access to beg, borrow or buy a volt-ohm meter
you want to make sure your cord is good end to end...
(measuring into your machine (looking into the hot & neutral).

Then you are going to need to go ON-LINE with your model number to find your primary power control...

On my machine a circuit board is accessed by removing the top panel from the rear of the machine (many videos available).

Most appliance parts houses now have video examples of PRECISELY HOW to ACCOMPLISH your repair... on-line chat & human support.

Most all the repair parts are the same quality... so if you can get our OWN PART NUMBER from your original documents... you came correctly shop buy PRICE ALONE.

While SEARS has the best on-line library.. they also TYPICALLY charge the HGHEST prices for the EXACT SAME PARTS you can buy everywhere (including eBay & AMAZON)...

and SEARS gets rude & pushy... (in my personal experience).

Hope this helps...

Go to Bing homepage

Search Over 2 1 Million Appliance Parts

Appliance Parts Lawn Mower Parts Heating Cooling Parts 365 day returns

PartSelect Appliance Parts and Repair Help

Last & certainly least... SEARS

Sep 05, 2016 | Washing Machines

1 Answer

I have a whirlpool stack that i suspect has a bad pump.with ohm meter shows direct should be 12.3 or close. i have the pump off but they are telling me that w10130914 part # for pump dont go with...

Hello Roger Charles McCord,

This forum FIXYA is all volunteer ...
NO CHARGE... Just relating some helpful hints to
save weary travelers time & money in the
midst of their travails...

It does sound like some nightmare... before tearing
the STACK apart and physically removing the washer
front...I recommend calling appliancepartspros...
Search Over 2 1 Million Appliance Parts

Everybody pretty much peddles the same parts...
the current GETTER of customers has been
on-line assistance...

SEARS (I am loathe to recommend) has been
dropping (their normally outrageous) prices...
To make up for their (in my opinion) egregious
customer abuse... (I used 2 B a big fan of Kenmore).

Never one a avoid saving $$$... do check their (SEARS)
ONCE you have figured out EVERYTHING else
you need to know...

For USA model products & information (whirlpool)
I also use partselect... repairclinic (see below)

PartSelect Appliance Parts and Repair Help

Appliance Parts Lawn Mower Parts Heating Cooling Parts 365 day returns

Happy hunting...

Carnac the Magnificent

Dec 01, 2017 | Whirlpool Washing Machines

1 Answer

I own a Kenmore elite Model 790.4660 electric range. When I attempt to use the oven there is a beeping message "F30ERR" Thank you. Mark

Thank you for question. I understand your concern with your Frigidaire range. Without knowing the model number I can't be 100 percent certain but F30 generally implies an open oven temperature sensor probe. The oven temperature sensor probe is located inside the oven cavity in the rear upper left or rear upper right hand corner. It can generally be removed and disconnected from inside the oven cavity.

Check the wiring harness connections between the control board and the oven temperature sensor probe connector. Check the resistance or the sensor at room temperature with an Ohm meter, if less than 996 ohms, replace probe. Check with meter, for shorted probe harness between control & probe connector.

. I recommend calling a service technician to diagnose and repair your range.

If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website:Sears Home Services

Dec 29, 2010 | Kenmore Ovens

2 Answers

Smoke was coming out of my subs and it was alot.

Open the sub box and see what it looks like before you go purchasing stuff with no problem for certain. You may have had wires touch and they will smoke. Also try connecting a different speaker to the amp and see if it works. this lets you know if the amp/speaker is working or not

Sep 07, 2009 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

Sears Craftsman Gar. door opener won't respond

There isn't a fuse. You are going to need to remove the cover on the opener and find out where you are losing the power. Maybe a neighbor has a volt meter you could use. I would check the power cord and then the logic board. Makes no sense but I would check for burnt or missing traces on the printed circuit board especially around that small transformer.

Aug 11, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Just had a response on a problem ive got with my sub thank you to '' etirbynnor '' but im being thick now haha what is a sub voice coil thank you

Hello again empsglen,

"If the sub voice coil is open, you will get exactly no sound. No crackling, nothing.

Use a multimeter to check the sub voice coil. If the meter reads infinity, the coil is open and to the amp, it's as if there's no sub connected, and you will need to replace it."

Sorry about that.

OK, my clarification assumes that you know how to set a volt-ohm-milliamp (VOM), or multimeter up to measure ohms, and that you have such a meter or have access to one.

The voice coil is the part of your sub that connects to the amp output and causes the cone to move in and out in response to electrical signals. If it is open (broken, burned) there will be no electrical flow and the cone will not move. A good voice coil will read a resistance (impedance) on the multimeter. If the coil is open, the meter reads as if it wasn't even connected (infinity) and if the coil is shorted, the meter reads zero (dead short). Simply put the meter across the speaker terminals and read the results.

Jul 15, 2009 | Sony Xplode P5 Turbo Subwoofers Car...

1 Answer

Hi ive just bought a 2nd hand sub n amp,wired them up and i can only get the amp 2 work,my other subs work plugged into the same amp just to check but the xplod wont,im not getting anything wot so ever,i...

Hello empsglen,

If the sub voice coil is open, you will get exactly no sound. No crackling, nothing.

Use a multimeter to check the sub voice coil. If the meter reads infinity, the coil is open and to the amp, it's as if there's no sub connected, and you will need to replace it.

Hope this helps.

Jul 15, 2009 | Sony Xplode P5 Turbo Subwoofers Car...

4 Answers

No Power


Did you try replacin the fuse.It might have blown.

Jul 03, 2008 | Sharp R-930AK Convection/Microwave Oven

1 Answer

Philips LX3600D Home theatre always returns to standby mode

There is a 1ohm resistor on the 4x4 pcb as soon as you take off the cover. ( I forget the ID # ) It supplys the -15volts to the control bd. The resistor will not looked burned. It was under rated. An ohm meter will find it ( open ). Rreplace it with a 1/3 watt. I believe the orig. was a 1/4 watt.

Mar 15, 2008 | Philips LX3600D System

2 Answers

Pyramid 35 amp regulated power supply

Use specified power supply by the computer.

Feb 05, 2008 | Computers & Internet

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