Author Topic: BUSH 17MB15E-5 17MB15E-7 NO PICTURE JUST BLANK  (Read 9469 times)

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rebel-mc

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BUSH 17MB15E-5 17MB15E-7 NO PICTURE JUST BLANK
« on: August 18, 2010,15:08:42 »
Hi All,
I've got a couple of Bush LCD tv's with the following mainboards fitted -
26" Bush 17mb15e-5
32" Bush 17mb15e-7
Both have the same fault.  Power on to just a backlit screen with no picture.
Would I be right in thinking that a reprogram of the eeprom would be the next cause of action.  If so would it be best to replace the eeprom with new?  Is there a specific eeprom to use?
Both boards have different eeproms fitted (24c32wp and 24wc32l) does this make any difference.

Any advice would be much appreciated.
Regards.

Mulja tv repair portal

BUSH 17MB15E-5 17MB15E-7 NO PICTURE JUST BLANK
« on: August 18, 2010,15:08:42 »

sinclairtv

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Re: BUSH 17MB15E-5 17MB15E-7 NO PICTURE JUST BLANK
« Reply #1 on: August 18, 2010,16:12:04 »
I had exactly the same symptoms with a Samsung 40" after replacing the usual caps in power supply..backlight on, sound ok but no pic. I replaced eeprom more in hope than anything elase and that was the problem.

JAYROD

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Re: BUSH 17MB15E-5 17MB15E-7 NO PICTURE JUST BLANK
« Reply #2 on: August 18, 2010,16:23:18 »
Have you got sound ? If yes i would check for any blown minature smd fuses on the T CON board thats the small board on the back of the lcd screen,very common for these to fail.

  phil.

Mulja tv repair portal

Re: BUSH 17MB15E-5 17MB15E-7 NO PICTURE JUST BLANK
« Reply #2 on: August 18, 2010,16:23:18 »

rebel-mc

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Re: BUSH 17MB15E-5 17MB15E-7 NO PICTURE JUST BLANK
« Reply #3 on: August 18, 2010,17:19:34 »
Hi All,
Forgot to say, on the 26" if I remove the eeprom and power up the tv and then switch off and then re-insert the eeprom the tv will come on and work fine until it gets switched off again.

Any idea's anyone.
Regards

rebel-mc

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Re: BUSH 17MB15E-5 17MB15E-7 NO PICTURE JUST BLANK
« Reply #4 on: August 24, 2010,06:48:34 »
Hi, Ive now got 2 more of this type tv with the 17mb15e-5 board all with the same fault (no picture just backlight).  One wharfdale 32" and a Dual 32"?  I have been told this will the eeprom.  Before I invest in a programmer, I would just like a bit of advice on programming.  Ie eeprom type.

Any Help?
Thanks

Mulja tv repair portal

Re: BUSH 17MB15E-5 17MB15E-7 NO PICTURE JUST BLANK
« Reply #4 on: August 24, 2010,06:48:34 »

 

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