Question about Mitsubishi WS-55511 55" Rear Projection Television

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Intermitant power off

Can you help with post http://www.fixya.com/support/t1086814-powers_off_intermitantly

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Good Day;

This model is equipped with a self-diagnosis feature to help with diagnosis of shutdown problems. To activate this turn the unit on let it shutdown then press the device and menu buttons on the front panel simultaneously and hold them in for 5 seconds after 5 seconds the power LED on the front panel will blink a two digit sequence. This will be one set of blinks a short pause then another set of blinks, this will repeat 5 times. 1 - 2 = no error detected 2 - 1 = X-ray protect (high voltage or beam current) 2 - 2 = Short protect (short protect monitors low voltage supplies) 2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection) 2 - 4 = Vertical protect (usually loss of vertical from the source) 1. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR LEAKY C9A60 470 PF 1000 V PART # 154P400030, PARALLEL TO D9A57 ON THE POWER PCB. 2. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR OPEN FUSES F9A04 AND F9A05 PART # 283P043090 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT. OR your TV has "COOLANT" (ethylene glycol) on the circuit boards. This fluid comes from the CRT's (picture tube) this fluid is used to keep the CRT's cool, such the name. This fluid from the CRT's leak when TV is on for long periods of time, the chamber expands and the seals leak.

One can remove this fluid by using "acetone" & small brush. The fluid is hard to see, use bright light, they spots can be smaller then a DIME. Also, the fluid can corrode the parts and traces on the boards. To protect the TV in future place heavy plastic or thick cardboard over affective area, make sure TV has proper air flow around TV.

If after the fluid has been removed and TV still does not work, call an Authorized Service Center to come out and repair TV after giving you an Written Estimate. The boards are not available.

Always try resetting the TV by unplugging it for one minute then plug back into A/C outlet and ALWAYS UNPLUG TV BEFORE ATTEMPTING ANY REPAIR ON THE TV.

Good Luck, big IRISH.

Posted on Sep 30, 2008

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Posted on Jan 02, 2017

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My sole treadmill turns my in line light times on and off. Sole could not resolve problem


Dear Sir:

Watch this video:

http://www.youtube.com/watch?v=N6Yg5S0WML8&NR=1

http://www1.fixya.com/support/r10724803-measure_voltage_in_transforme_fitness

http://www.youtube.com/watch?v=bF3OyQ3HwfU&feature=related


If I can undertand very well, the problem is intermitent.

a) Check the power cord,( some wire is broken internal)
b) Look for cool solder ( re-solder)+loose connections cause intermitent operation!
c)Inspection the breaker, for loose connection, test the breaker.
d) check the transformer as indicated above.
e)and finally check the power supply after the transformer: a) resistor b) capacitors c) diodes, all this component can be loose, bad solder or cool, or broken, or short, open, or shorcircuit.

If you need further assistance, please reach me, sincerely. God bless you.

E.CUADRA
MANAGUA, NICARAGUA. C.A.

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The screen on my Eizo CG241W monitor has begun to display a bright pink background intermittedly. Occasionally the screen displays solid green.


Did you verify that the video cabel is seated properly and no bent pins?
You should also try it with another PC to make sure i is not the PC's video card problem.
Please post back what you find.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Parts: http://interliquidparts.com/

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

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Make and model will help, more likely to be either the 24vdc power supply problem or dying backlight inverter board.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.

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I boot and my screen is hit and miss, so screens i see most i do not. worked intermitent, so times it would work, then it just stopped all together. i replaced the monitor and it works just fine. i then...


Which version of the monitor do you have? Built-in power supply or external AC adapter?
http://www.agneovo.com/us/content/f-417.asp
or AC adapter: http://www.usadapter.com/LCD-AC-Adapters/AG-Neovo-F-417-LCD-Adapter-12V-4A.html

If it uses externa; AC adapter, then you need to attach a car bulb such as 1157 using high filament to the adapter output and see if it still putting out 12vdc with load.

If it uses built-in power then you need to check the power supply section first.

Basic LCD monitor troubleshooting guide:

http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Please post back what you find.

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Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, 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 Gateway and other 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

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First components that I will suspect to be bad in your monitor are the caps in the power supply, just like the rest of failed Viewsonic monitors pictures I have here:
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net
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