Question about Roland Mv-8000 Sampling/Record Production Studio System

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Roland MV-30 music sequencer - LCD backlight failure

Is it possible to replace the LED backlight on the LCD screen, or is it a sealed unit?

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No solution from me but if you want to sell your MV 30 I would love to buy as I have one with a working screen but a non-working floppy drive

Posted on Aug 30, 2010

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Posted on Jan 02, 2017

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My samsung LED TV has no picture but has sound. I can see the image with flashlight. What's wrong with it?


This means that the backlight has failed. Depending on the age of the TV, this light is provided by compact fluorescent tubes or LED lights and brightens the light emitted by the LCD panel of the unit. On most older TVs the back lights are on the sides of the LCD panel. Repairing the backlight requires taking apart the bezel of the TV. Then you peel off the foil tape and carefully separate the lights from the unit, including disconnecting the ribbon cable that provide the power to the lights. You have to replace the lights with ones of the same size. Then put the new lights and seal the panel. Finally you close up the bezel.

Without the model of the TV, I can't tell which type of backlight you need. http://www.lcdparts.net/ has some replacements. The entire process is difficult and it is possible to break the LCD screen if you make a mistake. For any TV under about 40", you won't find most repair shops willing to do the work for less than the cost of a new TV. If the TV is under warranty (1 year usually), contact Samsung.

I hope this helps.

Cindy Wells

Sep 13, 2017 | Samsung Televison & Video

2 Answers

How do I repair backlight?


Repair: LCD Monitor Backlight - YouTube

? 6:06
https://www.youtube.com/watch?v=BTjH-jkuo9Y
Jan 30, 2014 - Uploaded by Heilman Hackatronics
This videos shows how to repair an LCD monitor Backlight. ... I've Samsung SA300 21.5 inch led monitor ...

How To Replace a LCD Backlight - Instructables

www.instructables.com/id/How-To-Replace-a-LCD-Backlight/

InstructablesHere are some simple instructions on how to replace a burnt out LCD backlight with a new working one to bring your LCD back to life. ... To get the the LCD screen and thebacklight inside, you must first disassemble the LCD housing; this is different depending on whether it is an ...

A (very) Simple LCD Backlight Fix - Instructables

www.instructables.com/id/A-very-Simple-LCD-Backlight-Fix/

InstructablesFix any broken LCD backlight with an ordinary light bulb and a dead CRT monitor.Broken LCD monitors basically come in three categories:1) Cracked LCD ...

Dec 30, 2015 | Samsung Televison & Video

1 Answer

Samsung monitor 2232bw plus backlight fade in black backgrounds scenes


Most common failures in these LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply C242 470uF 10V, C241 & C242 1000uF 16V, C261 & C319 680uF 35V failed as indicated in the attached picture, replace them at once.

If the power supply board is working then it is back light problem, first do a flash light test. If you can see the image in the flash light test, follow the steps how to test back light voltages: https://how-to-repair.org/repair/lg-tv-repair-manual-pdf/lg-led-tv-no-backlights-32ln5300-32ln5310-32ln5700-voltage-test-troub/2pyuXwNkBMA.html and follow the steps how to repair back light LEDs: https://www.youtube.com/watch?v=_poWTEihIJU Fix Led Backlights for TV or Monitor Lg Led Tv No Backlights 32ln5300 32ln5310 32ln5700 Voltage Test Troub Lg... Fix Led Backlights for TV or Monitor
samsung-2033sw-2233sw-ip-43135a-bn4400124s-power-board-dfydxumns33ohqc3bsmt22yf-3-0.jpg

Nov 07, 2013 | Samsung SyncMaster 2233BW 22" LCD Monitor

1 Answer

Backlight on boss dr 880 failed


IM LOOKING FOR A LCD BACKLIGTH REPLACEMENT PART

Feb 07, 2013 | Roland Boss DR 880 Dr Rhythm Drum Machine

1 Answer

The roland d10 powers up but none of the buttons or keys work? the screen just says "roland d10 synth"? please help!


The unit name is part of the boot sequence, it should go beyond that and boot up completely. If it gets stuck there, there is surely some problem. Maybe a depleted internal battery, I don't know. Ask a local service center, maybe there's a combination of buttons you could check out while on the phone prior to bringing it in for repair...

Jan 07, 2013 | Music

1 Answer

Backlight on my Roland D50 does not show up when powered up.All that happens is that the screen changes from black to a very feint yellowy green and there is no sound at all from the synth .... any ideas?...


This sounds like you have a failure in the power supply. This could be due to a bad solder joint or a failed component. The part cost should be minimal.

The backlight sounds like it is not getting the full voltage. The electronics mostly will run on 5 volts DC. Below about 4.75 volts things just won't work.

Feb 17, 2010 | Roland Music

1 Answer

My Roland kr-5 digital piano has the touch screen but over the last yr has gradually faded so I cannot see what is on the screen unless I bend right down on an angle and even then it is very hard to make...


probably wont need a new screen, its probably got led backlights in this is the case these may of been dying, take out the screen and if you can see leds switch it on and see if the leds light up, if now just replace them.

If it uses a bulb in the screen then you can try to get a replacement bulb or just get the whole screen.

There is a slight chance that it could be the backlight circuit in which case changing the backlight/screen wont help.

If you have a multimeter test that the backlight for voltage, to make sure it not the backlight power supply

Dec 11, 2009 | Computers & Internet

3 Answers

MV8-VGA BOARD


I TRIED TO FIND THIS BOARD UNSUCCESSFULLY FROM REGULAR AND ONLINE MUSIC STORES. THROUGH ROLAND SALES REPS, I LEARNED THAT THE PART WAS ON NATIONAL BACKORDER AND SCHEDULED TO BE DISCONTINUED. THIS WAS ALMOST TWO YEARS AGO IN 2007. I HAD LUCK TRYING REPAIR SHOPS THAT SERVICED ROLAND EQUIPMENT AND OWNERS WHO HAD THE CARD INSTALLED ALREADY. TRY CRAIGS LIST, AND MV NATION

GEO (GEO Production and Audio Svs.)

Jul 22, 2008 | Roland Mv-8000 Sampling/Record Production...

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