Question about Audio Players & Recorders
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Posted on Jan 02, 2017
SOURCE: no display
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Cause of power going
off: There is a bad 1000uF, 16V cap
on the power supply board.
Solution: Replace cap. Radio Shack sells a 1000uF, 35V cap for $2. This will work.
Why did the cap go bad? The cap is too close to a heat sink and over heated.
What does this cap do? This cap sends a signal to an IC which keeps the monitor 'on' after the power switch is pushed. When the cap is weak, AC ripple voltage is applied to the IC and it sends a signal to shut the monitor off.
Opening the Monitor: These monitors are difficult to open.
The two plastic pieces snap together and must be pried apart with a flat screw driver.
After removing the stand, you need to insert a flat screw driver at the bottom of the screen where two slots are located. Then work the screw driver around until the two plastic pieces are separated.
Remove the cover plate and unscrew the push button circuit board.
Unplug the monitor cords from the driver board and remove the screen.
Unscrew the mounting screws from the power supply board and remove.
You will need to pinch the plastic support in the middle of the board to remove.
Cap is located near a copper heat sink and the value will be on the side of the cap. It will be bulged up on the top. You will see burn marks on the board surrounding the cap. Unsolder the cap.
Install the new cap and solder. Make sure you connect + of the cap to + marked on the board.
Be careful not to solder across joints.
Keep leads long so you can bend the cap as far away from the heat sink as possible.
Reassemble monitor and turn on.
This should solve the problem.
Posted on Jan 01, 2009
same problem as others 3 blinking green lights then orangey colors then 3 red blinking lights afterwards shuts down fan runs for about 2 mins solution check your door cover for warpage or deformed just a bit under set screw there is a push in switch try and push it in with q tip while holding turn on tv if it works then that door is deformed and defective change it
thanks for solving my issue tv works again very helpfull thanks
Posted on Jan 07, 2009
SOURCE: APPLE iPod HiFi Speakers A1121
Forget other comments - the front is simply a glued-on black metal plate. No screws. No plugs. No obvious way in. If you use a screwdriver you can lever the 1mm thick black plate off the front of the unit to access the screws. Remove the middle speaker first & unclip from main housing. Take a good look & memorise the clip positions as there are lots and it's quite a job getting them all back again! Good luck. Great stereo.
Posted on Jan 31, 2009
Okay, if the screen is white! First, take apart and check the ribbon like cable that goes from your signal board (where you inputs are plugged in) to the lcd controller (under a small metal plate feed the lcd screen), see if loose and or reset! Secondly you either have a bad signal board or lcd controller!
Posted on Mar 04, 2009
This same thing happened to me, I removed the bulb and put it back in, it reset something and I was able to use the projector again.
Posted on Jan 16, 2010
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