MegaOne302
Senior Member
Last Activity: 08-19-2022, 03:19 PM
Joined: 04-11-2009
Location: Brooklyn, NY
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Re: Which brand and type?
Keep the case, memory, drives, and maybe the CPU. I vote to trash the rest; it's a very old PC.Leave a comment:
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Re: ANATEK Blue ESR Meter REV 1 PCB first build. Tips and component upgrade suggestio
Any updates on the “higher resolution ESR meter”?Leave a comment:
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Re: The infamous 2 seconds to black
From my very limited knowledge, 3 main things that go bad. 1 a CCFL tube, you'll see black ends. 2 a bad cap, they're usually bulging. 3 a bad Scotty diode, these guys turn gray or start cracking.
Oh ya, let's not forget a blown fuse.Last edited by MegaOne302; 06-10-2010, 04:17 PM.Leave a comment:
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Size codes and detail flux considerations and land preparation using solder
Check it out...
[URL=http://ipc.electronics.ca/DVD-92C.wmv]http://ipc.electronics.ca/DVD-92C.wmv[/URL]Check it out...
[URL=http://ipc.electronics.ca/DVD-92C.wmv]http://ipc.electronics.ca/DVD-92C.wmv[/URL] -
Re: ok to use 1500 uf to replace 820uf?
Yes, don't worry it'll work fine. I've done it on a few motherboards and LCD inverters with no problems. Just make sure the temp rating (usually 85c or 105c) meets or exceeds the original. Also, if they're close to each other make sure you have the space before you start soldering.Leave a comment:
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Always replace caps with ones of the uf same rating or slightly above, NEVER lower.
Always replace caps with ones of the uf same rating or slightly above, NEVER lower. Same thing goes with the voltage; a bad 25v cap can be replaced with a 35v / 50v cap as long as it fits and you have clearance for other components / casing. Make sure you match or exceed the temp rating also; it will usually be 85c or 105c.Leave a comment:
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Re: NEC MultiSync LCD1770V
Hi Bill,
[url]http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=390001594791&ssPageName=STRK:MEWNX:IT[/url]
The bulbs came out of a NEC LCD1760V, but will work as replacements for all NEC1770**. I used these CCFL myself to repair a LCD1770GX that I found on the street. Also, the seller says that the bulbs are used, but they are in very good shape with no black ends. Hope this helps…Re: NEC MultiSync LCD1770V<br /> <b...MEWNX:IT[/url]Leave a comment:
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Re: NEC MultiSync LCD1770V
Take a look at the 4 CCFL bulbs, two on top and two on the bottom. If the ends of the bulbs are black they may on the way out and tripping a safety.
Be very careful when you check the bulbs, the layers of LCD screen itself tend to shift when checking / replacing the bulbs.
Also, if you need bulbs, I know where to get all 4 CCFL for around $15.00Last edited by MegaOne302; 09-20-2009, 07:11 PM.Leave a comment:
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Re: Identifying Soldering Faults
Check this site out; they have mostly every type of PCB defect possible.
[LEFT][SIZE=5][FONT=Comic Sans MS][COLOR=Blue]
[SIZE=4][URL=http://www.globalsmt.net/troubleshooter/index.htm]PCB Troubleshooter[/URL][/SIZE][/COLOR][/FONT][/SIZE][/LEFT]Re: Identifying Soldering Faults
Check this site out; they have mostly every type of PCB defect possible.
[LEFT][SIZE=5][FONT=Comic Sans MS][COLOR=Blue]
[SIZE=4][URL=http://www.globalsmt.net/troubleshooter/index.htm]PCB Troubleshooter[/URL][/SIZE][/COLOR][/FONT][Last edited by MegaOne302; 08-25-2009, 11:36 AM.Leave a comment:
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Re: HALP! Where to store all of these Capacitors?
Nothing, that's what I use, picked up three dozen from Lowes for a little over a buck each.
They're the clear plastic type by Rubbermaid called (Clear Impressions type S).
These Shoe Boxes are good for the larger stuff and see-through ESD Zip Bags are great for organizing the smaller stuff....Leave a comment:
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Re: SRF10100C 100V 10A Dual Schottky Barrier Power Rectifier
Thank youLeave a comment:
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Re: SRF10100C 100V 10A Dual Schottky Barrier Power Rectifier
Hi Gianni,
The SR3100 I used has the same 0.85 Vf as the SRF10100C. But I do understand what you're saying about the junctions causing resistance. Is the Ir better on the (SR3100 30ma@125c) then the (SRF10100C 10ma@125c)?
This is why I love electronics, the learning never ends…
Thanks for the Sub P/N,
JoeLeave a comment:
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Re: SRF10100C 100V 10A Dual Schottky Barrier Power Rectifier
So far, it's been on around 24 hours at 60Hz with no noticeable problems.
I think the diodes are switching too slow.
Can this be why the LCD won't do 70Hz or above?
Leave a comment:
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Re: HP w2007 PTB-1773 - Where to start?
The meter is set to read amperage not voltage. Move the Black test lead to the center/common socket. And the Red test lead to the voltage socket....Last edited by MegaOne302; 08-23-2009, 09:33 PM.Leave a comment:
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Re: SRF10100C 100V 10A Dual Schottky Barrier Power Rectifier
Looks like I made a mistake; just dropped the refresh rate down to 60Hz from 70Hz and the LCD is doing fine.Leave a comment:
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Re: What PC games do you people currently play?
L4D here too...
Ya, noobs always shoot me or the car. Then I kick them. lolLeave a comment:
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Re: SRF10100C 100V 10A Dual Schottky Barrier Power Rectifier
Update, don't think it's going to hold. The diodes may be too slow; I'm getting minor pulses on the screen itself.Leave a comment:
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Re: SRF10100C 100V 10A Dual Schottky Barrier Power Rectifier
Hi Bill,
Thanks for the replay…
I had to get this LCD going ASAP so I subbed the SRF10100C (after all, its 2 Schottky diodes in one package). I used 4 SR3100 3A 100V schottky diodes running 2 parallel sets of 6A 100V for each leg. Let's see how long it holds.
Thanks guys,
JoeLeave a comment:
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Re: SRF10100C 100V 10A Dual Schottky Barrier Power Rectifier
Will this part work?...Leave a comment:
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