Re: Issue with Westinghouse 19" LCD Monitor (large pics)
I have a problem with this TV on the other (main) board p/n A190A5-A05-P-S6. By the ribbon cable that goes to the display there is a transistor Q21 that has burned up. Could someone tell what the number on that transistor is, it would by nice if I could replace that transistor.
Thanks
Issue with Westinghouse 19" LCD Monitor (large pics)
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
Thanks billy66, I also replaced caps and mosfets and got the same problem with R210, replacing this resolved the problem. Also thanks to everyone else.Leave a comment:
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
I've got kind of an interesting resolution on the search for the value of the zener diode ZD100 on ny power board. I never did find the schematic. However, there was an eBay seller in China selling the power board, stating that they were for the Westinghouse and some Viewsonic monitors. I emailed him asking which Viewsonic monitors. He said he didn't know. I then told him I had a broken diode and was hoping to locate the schematic via a model number. He actually checked with the factory there making them and told me it was a 20V zener. Pretty nice guy!Leave a 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.
EduardoLeave a 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.Leave a comment:
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
PlainBillLeave a 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.Leave a comment:
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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.
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.
PlainBillLeave a comment:
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
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.Leave a comment:
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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. ThanksLeave a comment:
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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
HULeave a 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?
ThanksLeave a comment:
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
I appreciate it! 6 on the way.Leave a comment:
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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.Leave a comment:
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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.
ThanksLeave a 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.
CraigLeave a comment:
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Re: Issue with Westinghouse 19" LCD Monitor (large pics)
PlainBillLeave a comment:
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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,
CraigLeave a comment:
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