Re: Samsung Syncmaster 244T - fixed but not.
Good to know re the capacitor's ability to take some heat.
Also, good idea playing with another circuit board - I'm sure I have something lying around (I always get friend's old DVD players as they are sometimes good for still playing CD's so I have some tunes when I'm in the garage; and a remote. But I'm tending to use my phone nowadays)....
I remember the computer place on McBride st. but I think it's gone (or I'm being senile again).
I once bought a Valiant in Blind Bight for $50 - and drove it home (It was still...
Erwin0265
Member
Last Activity: 05-20-2017, 10:26 PM
Joined: 05-15-2017
Location: Melbourne, Victoria
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Re: Samsung Syncmaster 244T - fixed but not.
But I still need to put in as little heat as possible into the capacitor/s, yeah?
This is my main worry; that I'll stuff it up with too much heat.
I'm more familiar with soldering connections in electrical looms in cars (I restore old cars as a hobby - Valiants - the Aussie type; I just noticed you're an Aussie also so you know what I'm talking about) where excess heat melts a bit more of the insulation and sometimes you need to clean and re-tin the soldering iron when some of the melted plastic gets on it. No big deal; but...Leave a comment:
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Re: Samsung Syncmaster 244T - fixed but not.
I appear to have double-posted but I can't work out how to delete the second one.
Perhaps one of the "powers that be" can delete it?............Last edited by Erwin0265; 05-19-2017, 03:05 AM.Leave a comment:
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Re: Samsung Syncmaster 244T - fixed but not.
So you can still get a "No Signal Detected" message even if the large cap is not making proper contact in the circuit?
Also; how do you tin the capacitor wires?
I've gone online to an electronic company recommended on this forum (DigiKey) and ordered all of the capacitors again as well as a solder sucker and flux paste.
As this has become a learning activity, I want to really do it properly - even if it is a bit more expensive than originally planned.
But I wold still like to know about the cap wire tinning...Leave a comment:
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Re: Samsung Syncmaster 244T - fixed but not.
OK, I'm a total newbie to all of the terminology, let alone the acronyms...
DCBUS =
PS =
PFC =
For me, PC means post script, DCBUS is a bus that runs onm direct current; as for PFC - I only know of KFC..............
I understand that Jaycar sold me the wrong capacitor and as they are 40 odd kms away from me, I'd rather buy online than waste more fuel (I thought I'd go and see "the experts"; I was wrong).
Other than getting a 450V, 100uF Capacitor, what else should I be looking...Leave a comment:
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Re: Samsung Syncmaster 244T - fixed but not.
The copper traces; are these the lines I marked in pink and does that mean all parts within that trace are electrically connected to each other?
Unfortunately, when I removed the large 450v cap, the pole came out of the cap before it came out of the circuitboard; so it's of no use.
Do you think it likely to be an issue or should I attempt a resolder of all replaced components and how things go?
I ask because you can only take one of these apart so many time before problems arise (Such as the plug that goes to the...Leave a comment:
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Re: Samsung Syncmaster 244T - fixed but not.
dskall,
I put the board back in, screwed in the earth screw, turned on the monitor, measured between the poles of the big cap and got nothing.
I tried several times (it's kinda nerve racking as I'm trying not to touch anything else), on different settings (1000volt DC scale, 250, 50) and also tried reversing my multimeter probes as I couldn't remember which pole was negative, which positive; still nothing.
I'm wondering whether the cap has already shat itself; even though I still get the on screen message of "no...Leave a comment:
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Re: Samsung Syncmaster 244T - fixed but not.
Jaycar Electronics (pretty much the largest electronics store network here); I'm in Australia...........Leave a comment:
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Re: Samsung Syncmaster 244T - fixed but not.
That's something I was thinking; the 400V is not enough to replace the 450V that was there.
But is this a reasonable symptom of an "overworked" (?) capacitor? To work for a short time and then just stop, but not blow at all and be able to continue its "job" after a 30 second break.....
Either way; I'm bloody annoyed that I was sold a cap that wasn't the specs comparable to the original. If I understand correctly (?), it's OK if the Voltage is rated a bit higher (say 500V or so), but lower is unacceptable?...Leave a comment:
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Re: Samsung Syncmaster 244T - fixed but not.
Hey, dskall,
I assume that I do this whilst the monitor is powered up?
I know I need to take care not to randomly touch any old thing on the board, but I'm not sure here; do I plug it in, unplug and then measure or leave it plugged in whilst measuring or measure without powering up at all (to measure what the cap is holding without having been discharged)?
As mentioned; I've never done this before.
Replacing boards, print-heads, belts and alike, I have done but going to the point of attempting to repair a PCB...Leave a comment:
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Re: Samsung Syncmaster 244T - fixed but not.
OK, I'll give it another go - think I'll dig out my magnifying light. My eyes aren't what they used to be.
I'll report back once I know more.
Thanks again.Leave a comment:
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Re: Samsung Syncmaster 244T - fixed but not.
What are secondary caps (I am assuming that these are the smaller replacements. ie. all except for the big one?)?
What's the trace?
Sorry - but I'm totally oblivious to the terminology.
Thanks for responding, btw; appreciate it........Leave a comment:
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Samsung Syncmaster 244T - fixed but not.
Hi all,
OK, I'll be honest, I registered to get help with my monitor......
A few days ago, it started flickering (and, from what I have been able to ascertain from numerous searches; this is a rather common problem. However, mine ends with a little twist...).
I discovered after about 5 minutes of searching online that the probable culprit was bad caps (so now I'm finally on the right site... hopefully).
Anyway, I found this nicely written PDF file that had 6 pages that pretty much told me to replace capacitors C110 and C111. So I ordered a few of these capacitors online,... -
Re: Samsung 244T
Thanks, ndttech; now it may end up being helpful for me three years on (so good they don't close posts that are a year old with no activity like so many forums do)......Leave a comment:
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