Re: Fujitsu-Siemens L22-1W - PI-190DTLB board (2 sec to black)
And one stupid question. :-D How do I test the backlight?
And one stupid question. :-D How do I test the backlight?
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Re: Fujitsu-Siemens L22-1W - PI-190DTLB board (2 sec to black)
Well you will need a set to substitute,perhaps you have a recycle centre/tip where you could get a old monitor and take out a set,or the other alternative is :-
https://www.badcaps.net/forum/showth...ght=test+lampsComment
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Re: Fujitsu-Siemens L22-1W - PI-190DTLB board (2 sec to black)
My tests backlight:
When I connect the first tube to a source of voltage lights. OK first tube. Monitor goes into standby mode.
When I connect a second tube, also lights up. The second tube OK. A monitor goes into standby mode.
But when I connect both tubes and the green LED lights. Then the LED turns off.Comment
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Re: Fujitsu-Siemens L22-1W - PI-190DTLB board (2 sec to black)
I dont know about Rtech but I dont know what you mean.
Are you testing the bulbs from the L22 -1W in another, known to be working monitor?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: Fujitsu-Siemens L22-1W - PI-190DTLB board (2 sec to black)
Confusion !!!! What Tube to what voltage ????? The Monitor has 2 tubes at the top and 2 at the bottom,if any 1 fails then the monitor will not work.Normally backlights come mounted in a metal channel in pairs.All four sockets on the Board have to have lamps fitted (original OR test ones), to test.Comment
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Re: Fujitsu-Siemens L22-1W - PI-190DTLB board (2 sec to black)
I have not tested the tube on a resource that I "might" corrected.
But I need to clarify my earlier post.
One tube is red. Is this correct?Comment
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Re: Fujitsu-Siemens L22-1W - PI-190DTLB board (2 sec to black)
Red is Dead !!!!!!! needs changingComment
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Re: Fujitsu-Siemens L22-1W - PI-190DTLB board (2 sec to black)
this issue is resolved. Thank you for your time.
Comment
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Re: Fujitsu-Siemens L22-1W - PI-190DTLB board (2 sec to black)
Hi Sabre504
I have a Fujitsu/Siemens Monitor L22-1W that died after being unplugged from the mains.
No way to switch it on again. Followed your capacitor replacement suggestion and it worked perfectly after that. The P.S board look just like the one in the photo in your thread, a bit black around the MOSFETs but did not need to replace them.
Thanks for your help. Really appreciated.Comment
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Re: Fujitsu-Siemens L22-1W - PI-190DTLB board (2 sec to black)
The IPT-1820 series smt may be the same as a 730-703-1900TLB-3h
in some Viewsonic monitors , as per this other thread:
https://www.badcaps.net/forum/showthread.php?t=18883
It does seem to have the same secondary resistance approx 720-760 ohms.
New IPT-1820's are in stock here:
https://parts-link.com/items.php?name=Avail&ref=22680Comment
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Greetings everyone,
I have a HANNSG Hi221 monitor that exhibits two seconds to black issues (backlight goes off, display is still on as confirmed by shining a flashlight on it) with some additional oddities...
The monitor failed on me with a standard "2 seconds to black" some time ago prompting me to initially replace most of the electrolytic capacitors (some of them were bulging/leaking).
Things kinda sorta worked for a night, then the problem returned along with some flickering and "buzzing" noises.
Upon closer inspection... -
Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Hi, this is my personal laptop, which the original board (lets call it Board A) blew up PU8700 (TPS51486), making a hole on the board, i had left the laptop at my desk one day with the battery fully charged and didn't touch it for a week, but when i tried to turn it on it didn't
Thought the battery was dead, so i plugged in the charger then tried to power on, the power LED blinked once, charged LED still orange, unplugged the charger, plugged in again and I noticed the "magic smoke" smell, so i unplugged the charger, removed the back cover and saw the blown IC (the "magic... -
Hi There,
This TV was auto switching off after few seconds with some vertical lines on the screen, so got a new TCON board and replaced it.
After replacing the TCON board it was working fine and i set it up with everything, used for few hours, then had the bright idea to update the software on it. During the update process, TV switched off and now no audio or video. No relay switch sound.
More Details
TV Model - LG OLED77G1PUA
Got the same exact TCON board from TVPartsToday and replaced it. But didnt transfer the EPPROM data (didnt... -
Hey guys great forum glad to have found it. I bought a Sony XBR 65X900C cheaply because it didn't work. No signs of life at all not even a light/led. All I hear is a brief high voltage sound when I throw the power to it.
Didn't see any obvious signs of damage so right away started checking voltages. This is what I see:
Power Board Connector that goes to Main board
CN6401
Pin 01 NC
Pin 02 NC
Pin 03 "BL_ON": 0V
Pin 04 "N/C"
Pin 05 "STBY 3.3V": 3.5V
Pin 06 "GND": N/C
Pin 07 "AC_OFF"...
Comment