Question about SpeakerCraft BB275 2-Channel Amplifier

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Power problem When I turn on the power switch the red lcd light comes on after about 3 to 4 seconds it fades out. All the fuses look good. inside it looks like new, boards are clean, no signs or smells of any burning. any suggestions? thanks for reading, chenk

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Look for a small pinhole and insert a pin while powered up to reset the device

Posted on May 26, 2007

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Posted on Jan 02, 2017

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Monitor lights up for approx 3 seconds turns off for 2 seconds, turns on again for 2 seconds and turns off. the power switch then turns orange in color


Look for bad caps in the power supply section.
If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed ACER monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

Jul 10, 2010 | Acer AL1916W 19" LCD Monitor

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Hey I have a viewsonic VX2245WM and my problem is that when I turn my computer on the monitor light goes red-ish like a red light that is starting to fade away and the screen is completely black like its...


Almost the same chassis as VX2235.
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed VIEWSONIC monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

May 19, 2010 | ViewSonic VX2245WM LCD Monitor

2 Answers

Power light keeps blinking Red and TV will not turn on


Is the light blinking constantly or is there a long pause then more blinking. If constant check the lamp door switch . Usually it is broken or jammed. If you jumper it and the set comes on that it. 4 blinks is bad fan.

Mar 24, 2010 | Sony Grand WEGA KF-42SX300 42" LCD TV

1 Answer

My Hobart 250 airforce doesn't start


On the main circuit board for the power supply, there is usually a thermal fuse installed, its a sealed unit and is not servicible, look for a black epoxied case,approx 3/8x3/4 long, with 2 leads coming out of it. Inside is a set of bi-metal contact points which serves as an over voltage/over current protection. These contacts deform/corode over time and it sounds like there not contacting properly. As soon as you try to load the machine, the current passing through this high resistance heats these contacts up, and shuts off power to the unit. I am not familiar with the guts of a hypertherm, but have extensive experiance repairing inverter based plasma cutting equipment, and i have encountered this before. I assume hypertherm must have some equivelent to this thermal switch inside the power supply.....Good luck..

Dec 29, 2009 | Miller Hobart AirForce 250A Plasma Cutter ...

1 Answer

TV won't come on. Standby goes green,then goes red blinks 3 times


3 flashes means the lamp door is not on correctly or the lamp door switch is broken.

Apr 08, 2009 | Sony Grand WEGA KF-50WE620 Television

2 Answers

02 xda orbit..


If the light doesnt turn to orange after a few minutes on the charger then the problem hardware related. Try another battery if there is no change then there is fault in the device, and repairs are required.


also you can try

this:

1. Plug it in the Charger without the battery inside.

2. switch on the power.

3. Without removing the charger plug in the battery.

4. Light should turn orange.

5. Wait a moment or two then power it on.

that might get it to work.

May 09, 2008 | O2 Xda IIs Pocket PC

4 Answers

No power but has red light flashing


Thank God for the internet. I had the same problem and I googled it and found this site with this solution. It worked fine. Thank you. Like you said, unplug, hold the power button for 60 seconds and replug and turn on. Worked like a charm. Thanks a bunch.

Nov 13, 2007 | Panasonic TC-32LX60 32 in. LCD Television

1 Answer

No cooling after power out, indicator lights pattern not in manual


The Mitsubishi units have to be reset by turning off the indoor units by switching the remote or thermostat to off. Then turn off the breaker to the outside unit(s). After 30 seconds,turn on the breaker and then you can turn on the remote for cool. If no lights come on on the inside units, most likely you have blown a fuse soldered on the main PC board. At this point, call your technician. A goos tech will be able to wire in an in-line fuse holder so if it should happen again, you can easily replace the fuse. If you do see a light or two come on at the indoor unit but the outdoor unit does not start after 3 or 4 minutes, sounds like you will need to call a technician. Most likely you have a blown fuse on the main PC board of the outside unit. It is not an easy one to replace. Good Luck!

Aug 31, 2007 | Mitsubishi MSH09TW Air Conditioner

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