Question about Porter Cable PorterCable BSI525W 5250 Watt Electric Generator

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High voltage (135volts) output

This is with a small load, 7amps

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Microtek Inverter high output problem

Did you check the voltage under load, some power supplies float high when there is no load connected

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Supplied output voltage has hight frequency

Line-load-regulation to the TV power supply board is very low. Replace the main power supply board.

Jan 24, 2013 | Televison & Video

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Is it possible to lower the output voltage? My unit is running closer to 127vac?

The voltage runs that high when there is no load so that as you load it the voltage will not dip too low...usually the higher voltage will give less trouble then low voltage will.. you also will use less amps. to run anything at a higher voltage... this places less stress on the generator...

I would not mess with it...when it is fully loaded you will be down under 120v


Sep 11, 2011 | Briggs & Stratton Power Products 5,550...

1 Answer

Laney GH100L amp...weak/distorted output...Output tube plate voltage is 100V higher than the schematic states...any ideas?

That high a voltage MIGHT indicate the output tubes are NOT loading the supply enough. You don't mention the voltages andthe tubes used in the unit. I have a schematic for a AH100 but I don't know if it is close to your unit. That schematic shows four output tubes.
Remember if you put matched tubesas pairs, the pairs need to be on opposite sides of the output transformer.

Feb 16, 2011 | Music

1 Answer

I have a coleman 5000w generator. when its running it's rpms are way high and my volt output on the 120 side is 153v how can i slow yhe rpms down is this a carb broblem thanks mark

Some small generators that do not have a built in AVR are set up to give the nominal voltage at it's nominal loading. this meens if it is unloaded the rpm 's creep up and so does the voltage.
I would suggest running the generator with the load you normally connect to it and ****** the fueling till you get the nominal voltage you require. (record any change you make)
If you are connecting this generator up to a house be very careful not to leave any sensitive equipment connected in the house as the voltage will be jumping eraticaly as it is loaded and unloaded, one item that gets hammered is the electronic contol on boilers/burners.

Jan 30, 2011 | Coleman Powermate Powermate 5000W...

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It could just be a bad signal from the MAP sensor or a poor connection at the sensor. Or a bad MAP sensor itself. Maybe the vacuum line is off or broken.

Manifold Absolute Pressure (MAP) sensor measures the changes in the intake manifold pressure which result from engine load and speed changes, and converts this measurement into a voltage output.

A closed throttle on when the engine is decelerating would produce a relatively low MAP output, while a wide open throttle would produce a high output. Manifold absolute pressure is the opposite of what you would measure on a vacuum gage. When manifold pressure is high, vacuum is low. The MAP sensor is also used to measure barometric pressure under certain conditions, which allows the PCM to automatically adjust for different altitudes.

The PCM sends a 5 volt reference signal to the MAP sensor. As the manifold pressure changes, the electrical resistance of the sensor also changes. By monitoring the sensor output voltage, the PCM can determine the manifold pressure. A higher pressure, low vacuum (high voltage) requires more fuel, while a lower pressure, higher vacuum (low voltage) requires less fuel.

A high or low voltage fault in the MAP sensor circuit should set a DTC P0107 or DTC P0108. If the MAP sensor sends an intermittent zero voltage signal to the PCM, a DTC P0106 will set.

Oct 13, 2010 | 1998 Chevrolet Malibu

1 Answer

My vizio gv42l fhdtv 10a picture flickers like a strobe light, on every input. had the tv since 08. inverter board? main board? Thanks Robert

you need to check first the power supply board whether the output supply 12-24vdc for the inverter board is stable and not can measure the output voltage with a get a voltage output of 12-24 with the inverter board is connected or loaded to the carefull of the high voltage at the inverter board..once the output is stable replace the inverter board or you can measure the output of the inverter be very carefull..the output range upto carefull..if the high voltage is stable replace the lamps...tnx and good luck..

Jun 03, 2010 | Vizio GV42L 42 in. LCD Television

1 Answer

E-3 comes up

Hello svjonny13,

Excessive current draw can be caused by a short in the wiring, especially the output. Also, an amp may draw excessive current when operated into a lower impedance load than it can handle.

Too low of a supply voltage may result in the amp drawing excessive current, especially when operated at or near it's rated output. Voltage multiplied by the current equals watts. So if the amp is trying to produce X number of watts, the lower the voltage, the more current it needs. A power wire that is too small or too long may have too high of a voltage drop. A high resistance in the ground connection can also result in a significant voltage drop. Again, too small, too long, loosely fastened, or perhaps corroded. I'd check all wiring

Internal component failure can also cause excessive current draw. In that case, the amp needs service.

Hope this helps.

Jun 16, 2009 | Alpine MRD-M300 Car Audio Amplifier

1 Answer

Volts to high

in order to set voltage you have to adjust the govener idle screw , that is what helps regulate the voltage, the higher the motor revs, the higher the voltage, the lower, the lower the voltage. the govener arm is normally a gold color arm with a small rod connected on top of the block. it should have a screw with a nut, or just a screw. turn counter clockwise, then ck voltage output,repeat till desired voltage. i usually, set mine at about 124, because once you put a load on it, it will bring the voltage down some. hope this fixes your problem. let me know. troy

Sep 27, 2008 | Electrical Supplies

3 Answers

Problem with my Peavy CS 1200x power amp

1200x with over heating output...does not care if it has a load unless it is too low,(Scott is wrong) have a leaky output, or a triac firing and clamping down the voltage to the speakers..the foldback shutdown may also be leaky, but these usually cause it blow fuses, and these get damaged by bad outputs or running the amp into shorts..since this amp has some really high voltages in it I suggest you take it to a shop before you KILL YOURSELF!

Jun 20, 2006 | Peavey CS 1400 Amplifier

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