Question about Boss IQ 1080.2 Car Audio Amplifier

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On power up.......protect light comes on

Boss gt 1080 ....anybody have a schematic???? we need to identify 2 burned resistors on power input side of board and being an amatuer......a schematic would be invaluble to me while trouble shooting output side of amp. Thanks

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What are the resistors connected to? mosfets?if so you need to identify which pin gate or source,these amps have dual so the other side would be the same.

Posted on Aug 09, 2007

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Low level input resistor values ti600.2 left and right channel resistors on board next to RCA in both burned
Hi Dave,

Schematics are tough to come by - but - you may find someone with your model that can help you out in the "Phoenix Gold Phorum" Joining is free - then ask your question and wait for a reply.

Good luck!

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Motor Joy
Hey boss. Just follow this guide and replace with a resistor that matches the value and tolerance. You have a 5 Band resistor, follow the guild and you should be good. Click here for a chart to help you identify the values.

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Hi wrightjc2,
Most common burned resistor are those with low resistance because it acts like a fuse to avoid further damaged to some parts if shorts,overload happened. But still best to have a schematic diagram to identify the burned one. If you haven't a schematic you may get the resistance of the resistor, measure it to the middle where the burned cut out, add the resistance from one half side to other half side. You may now have an Idea what may be the value of the burned resistor.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.

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1 Answer

Magnavox 27" TV- Burned Capacitor
R403 would usually denote a resistor and not a capacitor.

Capacitors do fail but usually don't burn out in such a way but resistors do, usually because something has happened elsewhere in the circuit that overloads the resistance. I have never seen a burned capacitor but I have seen resistors glowing with heat and some white hot until they virtually evaporate blackening nearby components.

I suggest you take another closer look at the circuit board...

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I need to identify the parameters (rating) of a resistor for a Panasonic PT53WX53G projector big screen tv. It got hot so I can not see the color codes on it. This resistor glows red when TV is turned...
The resistor you see is a 2.2 ohm 2 watt resistor and is part of the convergence circuitry. I would replace R7011. 7012, 7013, 7014, 7015 & 7016 (all the same value) and the 2 STK392-110 Convergence ICs. This should fix your problem. You can find kits on-line for around $45 with the IC's and resistors together.

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Hi fccjben;

The color code is as follows: blk = 0; brn =1; red = 2; orange = 3; yellow = 4; Green = 5: blue = 6; violet=7; Grey = 8; white = 9

Unfortunately, if it is wirewound, they usually printed the resistor value on the body of the resistor. For sure it shouldn't be glowing. Sorry I can't be more help, but without a schematid, can't do much else

Good luck Loringh

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Actually my tv is a HDTV 1080 WS 73713
The DM is the metal box on the left side - It says DTV 1394 inputs on it - any thing else just let me know

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Parallel connection of power mosfets with two of 5 smoking
The IRFZ46N are n channel high speed switches . They basicly drive the Mosfets. Sounds like you have some problem there my friend, and unless you paid alot for this amp. Its going to need probobly all the n channel switches as well as every mosfet + the bias resistors repalced. Before plugging in the amp jump out the fuse with a 100 watt light bulb.. If the bulb glows brightly when you apply power there is still a short in the unit and could be in the switching power supply section of the amp. If it glows bright and dims, The shorts are most likly gone. The bulb will minimize the amount of current the unit can draw and most of the time wont let the new parts blow out. Check out this service number and see if they can help you. Good Luck Main support number 978-823-0300

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