Re: Issue with Westinghouse 19" LCD Monitor (large pics)
W2X
Q208 is W2T.
W2X
Q208 is W2T.
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
I am working on a Westinghouse TV with board DAC-19m015. It has a nice little burn spot where L105 used to be. Can anyone tell me what is supposed to be there? Thanks in advance. :-)
CraigAttached FilesComment
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There are 10 kind of people in this world: those that understand binary, and those who don't.- ASUS ROG Maximus IX Code
- Intel Core i5-7600K 3.8GHz
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2 x Acer KA240H + 1 Vewsonic VP2130 21 (a cap replacement job
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
That's what I thought, but I wanted to make sure. :-)
Since L105 is gone is there any way to find the correct inductor to replace it? Any ideas are welcome.
Thanks again,
CraigComment
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
I had thought of searching for the service manual for the monitor and other monitors that use the same power supply. The I realized that a considerable amount of current passed through that inductor to destroy it AND damage the circuit trace next to it. There is certain to be additional damage.
PlainBillFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
Good Point. Thank you. I will probably look for another board.
CraigComment
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
I may have missed it, but is there another MOSFET than can be used? Both Mouser and DigiKey show the 863-NTP45N06LG part as no longer available.
ThanksComment
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
Hello! I believe the original mosfet was a 40T03GP. These are readily available on Ebay.Comment
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
I appreciate it! 6 on the way.Comment
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There are 10 kind of people in this world: those that understand binary, and those who don't.- ASUS ROG Maximus IX Code
- Intel Core i5-7600K 3.8GHz
- 16gb GSKILL TridentZ RGB DDR4-3200
- 1 M2 SSD + 2 WD Blue 1TB (Mirrored)
- Windows 10 Pro x64
- GeForce GT1050
2 x Acer KA240H + 1 Vewsonic VP2130 21 (a cap replacement job)
Comment
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
Another question about my DAC-19M015 power board.
On the solder side, to the right of the CE103 cap (1000uf, 25 vdc) (with the cap positioned to the top), there's a small black square labeled ZD100. It appears to be cracked.
Can anyone tell me what kind of component it might be, and the value?
ThanksComment
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
If the dac-19m005 is similar to your dac-19m015
The markings on the 005 board of zd100 read.The diode is closer to CE104 CAP.
PJ69
HUWhatever I do, I consider it a success, if in the end I am breathing, seeing, feeling and hearing!
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
Could someone help me identify this diode? I have a couple of these that are shorted. I've replaced all the capacitors, 40T03GP MOSFET and checked all fuses. I found several SMD resistors that had very high resistance (0.2 ohms -> 1.9 megaohms) along with these shorted diodes.
I believe these are LL4148 diodes, but I would like someone who is familiar with these to verify. ThanksAttached FilesComment
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
After some discussions on another board, it appears that the prefix 'zd' stands for zener diode. We're guessing a 12 volt, 1 watt zener should do the trick.
I had emailed Delta Products about this board in hopes of getting a schematic and/or a parts list. I got back a fairly curt (snotty) reply basically telling me to take it up with Westinghouse. And we all know how they are.Comment
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
It should be pointed out that this power supply - indeed, the entire monitor, is sold under a number of different labels.
Two sites that can be helpful are www.elektrotanya.com, which has a number of service manuals. Their 2 downloads a day limit will be lifted if you register.
Also, http://www.4shared.com/dir/7126951/4..._INVERTER.html has a number of original and third-party schematics for power supply / inverters.
PlainBillFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
Thanks for the links, Bill. I think I can get the power board schematic if I can ever come up with another model number. I thought I had it with a Viewsonic monitor, but it turned out to be a Delta DAC-19M010 unfortunately.Comment
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For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
I have this same monitor: Westinghouse L2046NV. Same issue... but once I replaced all the caps and the mosfets, it still didn't work. The backlights would flicker for a second, and then go out... over and over. I finally found R210 (on the backside of the board) was bad. Ohm'd out it read 900K ohms... and it should be 10 ohms. Reads: 10R0. I replaced it and it fixed the issue. Just wanted to throw my two cents in to help others if they have the same issue. This one was killing me for a while.
Thanks to all those on this, very long, thread that have helped... the info was a great help to me.Comment
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Hello,
I am currently trying to help a ONG by volunteering to help repair laptops, it's something that i have been into since 2017, always watching videos, on discords, forums etc...
I have an HP ProBook 4510s laptop that does not power on and has no indicator lights, which suggests an issue with the power supply or the motherboard.
I started by verifying that there is voltage at the input of the motherboard, confirming that the power adapter is working correctly. However, when I checked the voltage at the output of the first MOSFET (Q1032), I found 19V at... -
Good day everyone.
I have been scratching my head with a Lenovo laptop I got in today.
The laptop had no power and taking no amps from the power supply. Checking voltage showed 20v only on one side of the first mosfet. Took it off and replaced it and then same story. Took off second mosfet and then the first mosfet had the right voltages as well as 25v on gate is it should. Replacing the second mosfet the problem started again.
Even using a wire to bypass the second mosfet does the same interference with the first mosfet.
Would anyone... -
I tried to use this method:
Testing an N-channel MOSFET:
Step 1: Discharge the Gate (turn off the MOSFET)
Place the black probe (COM) on the Source (S) and the red probe on the Drain (D). The multimeter should show no continuity (high resistance or "OL" – open line).
Then, touch the black probe to the Source (S) and the red probe to the Gate (G). This discharges any stored charge in the Gate, turning the MOSFET off.
Step 2: Charge the Gate (turn on the MOSFET)
Now, place the red probe on the Gate (G) and the black probe on the...09-27-2024, 03:31 AM -
Here's another LCD monitor repair: Westinghouse L2210NW.
Quick specs: 22” CCFL backlit LCD, 1680x1050 max resolution (16:10 aspect ratio)
I got it with a bunch of desktops PCs from a repair shop that was trying to free up space a few years ago. It seemed like a cheap monitor, so I didn't really care that much at first when I picked it up (and indeed it is, picture-wise.) But hey, free is free, so I can't complain. Moreover, it looked clean and the screen didn't have any significant scratches or blemishes.
Pictures of the monitor outside/case after a brief... -
Hello everyone, I recently found this badcaps site and super Learn Electronics Repair youtube channel. And I wanted to learn how to troubleshoot power supplies and VGA cards and how to practice soldering, since I already have a properly defective piece of them. I am currently trying to solve two problems:
I have a Gigabyte GV-RX460WF2OC-4GD type card. I managed to find the faulty MOSfet (AON6414A) on it, which I replaced. The card starts up, but after about half a minute, the MOSfet in the same position will be shorted again. Is it possible that the PWM controller driving the MOSfet...
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