Hello
Got this tv today totally dead anyone fixed this model before ?
Got this tv today totally dead anyone fixed this model before ?
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Re: Umc 32/188g-gb-5b-tcu-uk
Ok change that I now standby light then press the power button the back light comes on but restarts to standby light then backlight comes on but restarts again over and over -
Re: Umc 32/188g-gb-5b-tcu-uk
Try unplugging the backlight LED driver, see if it still does the power cycling.Last edited by tom66; 10-28-2014, 10:42 AM.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Umc 32/188g-gb-5b-tcu-uk
Unplugged the cable that goes along side the lvds cable leading to the panel and the tv is working fineComment
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Re: Umc 32/188g-gb-5b-tcu-uk
They don't usually put useless cables in a TV so you should find out what that cable does. Maybe it controls backlight brightness and the TV will work at low brightness levels but not at high ones for example...Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Umc 32/188g-gb-5b-tcu-uk
I would tom but now I just have blue standby light and no backlight ....hmmmComment
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Re: Umc 32/188g-gb-5b-tcu-uk
Sounds u intermittent. Try checking PSU outputs in particular the stand by rail.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Umc 32/188g-gb-5b-tcu-uk
There seems to be more faults it takes me about 6 clicks of the power button for the tv to get it to turn blue
so far with no backlight now voltages on the psu are
24v =23.5 volts
12v =12.2 volts
ps-on = 4.3 volts
5v = 4.9 voltsComment
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Re: Umc 32/188g-gb-5b-tcu-uk
eeprom prob me thinks,
been there done that, give up.
lolComment
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Re: Umc 32/188g-gb-5b-tcu-uk
been searching around seems there are eeprom faults with this main board
would a corrupt eeprom cause this problem im having ?
http://www.ohmsupplies.co.uk/EEPROM-...D30669A12023-UComment
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Re: Umc 32/188g-gb-5b-tcu-uk
oh yes, i had a JMB, and the stand by light would come on for 15 seconds and go out,
then another time it would stay on for longer, and i would be able to turn the tv on,
these tv's are made/supplyd by sky media,along with other so called brands, and all seem to suffer with eeprom probs.
i've had a look on there site for an update for your set, but there is none.
i replaced my eeprom with a BAIRD eeprom, and the tv now works, but the buttons on the tv was wrong, so had to swap wires around, also can't find a remote to work it at all,Comment
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Re: Umc 32/188g-gb-5b-tcu-uk
Eeprom's are for sale? You could try to replace it?I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!
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Re: Umc 32/188g-gb-5b-tcu-uk
Thanks guys I have found a replacement board cheaper than the eeprom so ill try that first thanksComment
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Re: Umc 32/188g-gb-5b-tcu-uk
Changed the eeprom tv booted up straight away and working
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I have a Lithonia Lighting 65-Watt Gray Hardwired Compact Fluorescent
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While the Lithonia lighting fixture has all most certain bulb failure
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I have only had this light fixture for not more than a year if it... -
I have had this item in my wishlist for sometime at Joann for $179.00
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I said yea let me get this at this price
I need a light box to be able to look through circuit boards when I can not find a circuit diagram for that board
I have used the magnifying light that I have but it to small to use it for this
kind-a use
But what I just bought will work very well for doing this kind-a thing
What nice about this light box is that it has three light levels
The light box is... -
Hello everyone!
Tonight I picked up a Samsung UN65NU6900FXZA with a curious issue.
Symptoms:
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2) TV does not appear to turn on
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5) "A13V" terminals have 12.9v
6) Stand-by test jumper on Power Supply has 12.9V
7) Optical audio jack on Main Board illuminates
8) With stand-by... -
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Let just see if this is the case or not and just how bright is bright because I bought some of there light bars that they said were very bright and were ok but I would not say they were as bright as they claim
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Hi
I have an 820-2610-A motherboard that has no green light.
I have noticed is when I do a SMC reset the light on the Magsafe blinks.
From My understanding, the sys onewire circuit is responsible for the green light on the magsafe
The sys onewire circuit on this model and others is more involved
I was hoping if anyone knows about this and how it works, can reply and let me know
I know this is an old model but I am sure there are people who still works on these or knows about them
I get 1.1v on the C7771 capacitor and will replace...
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