Hello all, Please, i need help. There is a Deg 32" lcd tv that i am presently repairing, it has no model no. If i power it on, the backlight comes on and i can switch it on/off with the remote control. Other buttons like MENU, VOLUME, PROGRAM etc display on the screen but no picture or sound. The screen is blank with a light grey color. I have read the voltages from the power board and there are accurate. Please, can somebody suggest what else to try. i will be very grateful. Thanks in advance.
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Re: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
So, if you press the MENU button, the TV's system menu appears?
This would be a main board problem -- the main board is the one with the video inputs on it.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. -
Re: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
Thank you very much Tom66 for your prompt reply. Like what components should i text in the main board. I have attached a picture of the tv panel. Please, kindly indicate the main board to me and the areas to check.thanks.Attached FilesComment
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Re: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
Looks to be some Vestel variant -- the main board is that largest green one in the middle of the TV.
Please confirm that when the menu key is pressed on the TV you can see the full menu on the screen.Last edited by tom66; 03-23-2013, 03:13 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: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
Thanks a lot Tom66, i really appreciate you concern. Yes! The MENU does display and you can select any input like AV/TV, tuner, scart 1, scart 2 etc. But if a dvd player or cable is connected, it does not show any picture or sound.Comment
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Re: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
OK, do you have the original or a compatible remote?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: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
Could it be stuck on hotel mode?Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
Yes! I have the original remote.Comment
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Re: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
Please, "what is stock on hotel mode"?Comment
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Re: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
Hotel mode is probably not relevant for this model, though the next steps will tell us anyway.
OK, so turn the TV on to an analogue channel (where you would normally see snow if the TV was working properly.) Then press MENU on the remote, followed by 4, 7, 2, 5 in quick succession. If all goes well, a secret option menu should appear. Can you show us a picture of this?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: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
Please, i am sorry for the delay, it was due to power outage. I had to borrow a generator as mine is faulty. I have done as you instructed and i have attached the picture. Thanks for your help.Attached FilesComment
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Re: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
OK, what is under the other menus (use left-right I think to select the menus -- the icons at the top.) A picture of each would be helpful. Sorry to hear about the black out. Are they very common? I have a friend in South Africa who gets them every day :/.Last edited by tom66; 03-23-2013, 09:55 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: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
Here there are Tom66. Thanks a lot. As for black outs, it's natural in Nigeria, we experience it very often. sometimes, ten times a day.Attached FilesComment
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Re: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
If you use the down arrow on this menu:
https://www.badcaps.net/forum/attach...6&d=1364055075
are any other options available?
I'm looking for a "factory reset" option, if one is available.
If not, we will have to look at the EEPROM on the board.
Worst case, look up prices for 17MB11-6 main boards. You may have to order them from Europe. There's plentiful supply here, so the price is generally quite low, but I don't know if they will ship to Nigeria....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: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
I have scrolled down with the down arrow but there are no other options. Do we now look at the EEPROM on the board?Last edited by reality; 03-23-2013, 11:00 AM.Comment
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Re: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
When you have finished Toms Tests
Did you check that the sound was not just muted? -With a known sound source connected
press the mute button on the remote control.
Also check the cable that goes from the main board to the panel is secure - take it out
check for bent pins and replace.Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
I wouldn't think the second test is necessary, after all the user is getting an OSD (menus etc.)
Regarding the EEPROM, I think it is this device, can you confirm the marking printed on it?
Also I am thinking that "initial aps" may be worth considering.Attached FilesPlease 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: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
Thanks Selldoor, I have checked the mute but it is not muted. I have also checked the cables and all is in good condition but still no picture or sound.Comment
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Re: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
Yes! i can see it. how did you get that board? I thought it is not common. What do you mean by "initial aps"?Comment
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Re: DEG LCD TV(no model number) WITH BACKLIGHT WORKING BUT NO PICTURE, NO SOUND
So what do you suggest Tom66,do you think i should replace the EEPROM?Comment
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Hi, I have a Samsung UE50TU with:
- sound and backlight, but no picture
- when it arrived, it had a picture for a few seconds
- it keeps rebooting
- without ribbon cable between the two panel boards, it does not reboot but I have no picture
- without cable between mainboard and lcd panel, it does not reboot (but obviously i have no picture)
- when i try a tape fix, its keeps rebooting, unless I tape off pin 1 (the innermost pin). In that case it does not reboot but I have no picture.
- without cable between mainboard and lcd panel and with a jumpered... -
this tv is throwing me for a loop. do samsung tvs no longer have the backlight self test feature built into the power supply?
i tested the backlight with my LED tester and it lights up both strips. one of them reads 100v and the other reads 63.7v.
unplugged mainboard from power supply but left backlight plugged in, and then plugged psu wall power in. expected to see backlights light up but see nothing.
according to how ive diagnosed in the past, this would almost always be a bad power supply. replacement power supply was cheap like 20$ from ebay. but still i get not even... -
I have a 60 inch Samsung UN60EH6000F flatscreen TV. The screen went black a few months ago Sound is good, backlight is good, no menu. I replaced the TCon board with a used board purchased from Ebay. It worked fine for a 3-4 months, then the screen started βfading' back. Once again, sound is good, backlight is good, no menu. However, this time the picture looks fine for about 10-15 minutes, then fades back. If I power cycle the TV, the display reappears, for another 10-15 minutes, then fades black again. Repeatable ever time.
I ordered a supposedly βnew' Tcon board this time, and... -
Hey Guys,
So a few months ago my Sony XBR 49x900e TV screen stopped displaying the picture but the backlight comes on and I still get sound when I use the remote and navigate to certain apps. I haven't checked anything with the meter yet but started with ordering some replacement boards. I've tried replacing the BMKS board (used from ebay) and also completed the firmware upgrade based on Nicks TV repairs youtube video. I've also replaced the TCON (twice) and PIB.
All of these changes have resulted in the same issue with no picture. I've also tried disconnecting the ribbons... -
Hey,
I have this subject TV and when I plug it in I don't get a picture, backlight or sound. The remote and power buttons don't seem to do anything. I've metered the signals on the following after plugging in the TV;
Power Supply Board Connector CN6401 between PSU, MB, TCON
PIN 1 - BL_ERR - 0VDC
PIN 2 - BL-ON - 0VDC
PIN 3 - POWER_ON - 3.47VDC
PIN 4 - N/C
PIN 5 - STANDBY3.3V - 3.50VDC
PIN 6 - N/C
PIN 7 - GND - 0VDC
PIN 8 - GND - 0VDC
PIN 9 - N/C
PIN 10 - REG12 - 12.69VDC
PIN 11 -...
Comment