Question about Kole audio Q2-980 Car Audio Amplifier

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Protector redlight comes on and stays on on the amp

I see theres a broken place in the soldering on the circuit board

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You have to much power running to the amp

Posted on Dec 08, 2008

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6ya6ya
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My headlight on the drivers side won't stay on. I put new bulbs in. Soon as I put protector cap back on , the light goes out. The bulb is tight & put in correctly.


you may have a broken wire to plug pin, replace light socket assembly, parts store should have replacement units all it takes is cutting out the old socket and bud splicing or soldering the new one in

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The deal is that when my amp stay along like fot whole night without working and then i turn on the amp at the morning i hear cracks and pops on the channel(1).Now the channel (2) stays off until it just...


It sounds like you have "thermally intermittant solder joints" on your circuit board...you may have to remove the circuit board itself and check for broken solder joints around each of the components inside where heat and vibration more than likely has broken the solder holding the components to the circuit board...it could only be one bad joint...but it can become a search and solder type of process so it's just as well to touch up each solder joint individually to make sure they are making proper contact.

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after 4 or 5 yrs (depending on usuage ) in some TVs on mainboard & CRT tube's circuit board at some soldering joints cracks develops ... then due to loose contact TV behaves as you have described ........ when you are hitting that lightly on its side then these cracks at soldering joints are getting connected temporarly & for few seconds or minutes you are getting normal picture ....... so solution is most of the soldering joints on mainboard & on CRT circuit board has to be resoldered ....... only good tv service engineer can do this without shorting joints or damaging components..... so in your place contact few TV service engineers & ask them how much they will charge for resoldering joints on mainboard & crt tube's circuit board ......

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My car came with two sets of keys they have a door unlock/lock button, trunk button, and one for the alarm. They both stopped working so I bought new batteries. I had put them in and it still never worked....


Re: Key Fob - U shaped battery hold down bracket. (Open key fob with a small pen knife)

This battery holding bracket commonly becomes dislodged from the circuit board when you drop the key fob due to the weight and momentum of the battery. Closely examine the bracket and notice there are three little projections that align with holes in the circuit board. The only thing keeping this bracket in place are three points on the opposite side of the circuit board where it is soldered. It is easily repaired if you have soldering skills. Obtain a 27-watt soldering iron from Radio Shack and rosin core solder. If the bracket is still partially attached to the board, heat the solder pad(s) and completely remove the bracket. Next, heat each pad and open the pad hole with a pin or tooth pick. Clean any excess solder off the bracket's mounting feet and re-solder making sure it is flat against the board. If any of the mounting tabs are broken away, remove the broken piece from the pad hole. Then solder a short piece of wire to the side of the bracket as a substitute, insert & solder to the board. Install a fresh battery and test. Caution: Do not apply excessive heat to the circuit board. Do not use high wattage soldering gun.

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1 Answer

Peavey Audition 110 Combo: When amp is switched on and any guitar played through it comes through extremely loudly compared to the volume it is set at. After a number of dunts with my fist on the top of...


The problem is LIKELY a broken solder joint right at where the leads of the volume pot come through the circuit board. The broken joint will ozidize overnight and then when vibration rattles it it will punch through the oxide. INSPECT all solder for the pot leads. Lood for a TINY grey line in the menicus of the solder where the lead comes through the board.

May 10, 2011 | Peavey Vypyr 30 30watt 1x12 Modeling...

1 Answer

My OS-2 Distortion pedal will not work. There is current flowing to the battery terminal, there is also contact noise in the output, but none in the input. The red light does not come on when powered and...


Common problem is a broken solder connection where power jack is attached to the circuit board. SOmetimes the circuit board is cracked or solder broken. If board is cracked, jumpers need to be soldlered on to bridge the crack.

May 07, 2011 | Roland Boss OS-2 Overdrive / Distortion...

1 Answer

Shows different color complete blue or red scrren at connection


shake vga cable at different places & observe.........if colours becomes normal or it comes & again it goes...then vga cable is deffective.......either you have to change full vga cable or you have to repair that cable itself................after shaking cable also if no improvement then......hit your monitor lightly on left side or righr side or on top & observe ...........if colours becomes normal or it comes & again it goes...then following is the situation...............after 4 or 5 yrs in some monitors on main board at some soldering joints crack develops....then due to loose contact colour problem comes (1 of the sympton) ...........when we hit that lightly then those loose contacts joins temporarly & again colour comes nomally for some time............so solution is ......monitor main board & crt circuit board should be observed carefully & most of the joints should be re-soldered.......only a good service engineer can do that........even after hitting monitor lightly if there is no improvement then..following is the situation.....................on CRT circuit board ( circuit board that is fixed to tube) ''red green blue'' - video output IC ( some thing like LM2469TA ) will be there - it should be replaced - usually it will be fixed to heat sink ------- before changing IC all the components on CRT circuit board should be checked ( after switching off monitor ).........this problem cannot be solved by user unless user has idea about components( resisitors, transisitors, diodes,...etc) , have soldering iron , multimeter & other tools....................so contact good monitor service engineer .............iam from bangalore - 09986222774 - sathyavijayasarathibabu@ymail.com ( computers, laptop, printers, etc )

Apr 11, 2011 | SAMTRON 55V 15" CRT Monitor

1 Answer

New whirlppol frontload. less then 6 mos & broken 4 the 2nd time. they say its computor board. do u know if this is a prob w/ them?


The problem with the computor board, the CCU (it's actually just a simple circuit board) is that there are cold solder joints where the relays and the spade connectors connect to the circuit board. Have those cold solder joints touched-up and you should be ready to go.

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1 Answer

Constant load noise when i switch my amp on


IT SOUNDS LIKE SOME COMPONENTS OR "PARTS" IN YOUR AMP ARE NOT CONNECTED TO THE CIRCUIT BOARD.
WHEN THESE AMPS ARE MANUFACTURED, SOMETIMES NOT ENOGH SOLDER IS PUT ON THE JOINTS.VIBRATIONS AND HANDLING THE AMP ROUGHLY MAY LOOSEN THESE JOINTS.

WARNING: DISCONNECT THE AMP FROM THE AC ( WALL.)

OPEN UP THE AMP.... CAREFULLY
CAUTION :DO NOT BEND THE "LEGS" OF THE LM 1875 TRANSISTOR THEY BREAK EASILY.
PUT THE SCREWS,NUTS AND WASHERS IN A BAGGIE.

LOOK CLOSELY AT THE SOLDER JOINTS.
ESPECIALLY WHERE THE POTENTIOMETERS ARE SOLDERED TO THE CIRCUIT BOARD.

THERE ARE THREE SOLDER JOINTS ON EACH POTENTIOMETER.
WITH YOUR SOLDERING IRON.. FLOW SOME HOT SOLDER ONTO THESE JOINTS.
START WITH THE GAIN 1 ..GAIN 2..TREBLE ETC.

THIS MAY SOLVE THE PROBLEM.
IF NOT,,,, YOU MAY HAVE A BROKEN POTENTIOMETER.
OR ... A BLOWN TRANSISTOR... LM 1875 IT IS THE ONE MOUNTED TO THE HEAT SINK.

ARITHEBASSPLAYER

Mar 25, 2009 | Marshall 15 Watt Guitar Amp

2 Answers

SONY STR-DE535


Change the audio amplifier IC´s are in short circuit that´s why your device go on to protection mode.

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