Re: Samsung syncmaster t220 Powers on no screen.
that wiring diagram helps a lot. I have to make another move from oregon to LA one last time so i've packed the monitor up rather then fix it now and chance that it has another problem in the truck again. i'll be back on here in a week or so after my move to start poking around the monitor some more.
ratboy99
Member
Last Activity: 05-20-2013, 09:47 PM
Joined: 05-02-2013
Location: oregon
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Re: Samsung syncmaster t220 Powers on no screen.
any other advice on what my problem might be?Leave a comment:
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Re: Samsung syncmaster t220 Powers on no screen.
i also checked the 2 reistors you mentioned i had 9.89k ohms on r601 and 6.9k ohms on r600.Leave a comment:
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Re: Samsung syncmaster t220 Powers on no screen.
ok so that took my awhile to figure out. i'm not the best with little things. pin 3 on the main chip had 3.2v r601 had 3.2v on one side and .666v on the other. q601 had .666v going into it and MV on the 2 other legs.Leave a comment:
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Re: Samsung syncmaster t220 Powers on no screen.
what component should that 3v be coming from? i tryed to follow the traces but they go under an IC chip and i can't see where they are supposed to go.Leave a comment:
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Re: Samsung syncmaster t220 Powers on no screen.
I forgot to add before not sure if it makes any difference or not but i did not have the ribbon cable plugged into the screen from the main board as i couldn't get to the pins to test them with it plugged in.Leave a comment:
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Re: Samsung syncmaster t220 Powers on no screen.
pluged in/off. / plugged in/on with computer power on
1) 58.1mv~~~~~~~~~~~~1) 4.8v
2) 13.5v~~~~~~~~~~~~~2) 14.63v
3) 0~~~~~~~~~~~~~~~~3) .5mv
4) 0 ~~~~~~~~~~~~~~~~4) .5mv
5) 5.3v~~~~~~~~~~~~~~5) 5.3v
6) 5.3v~~~~~~~~~~~~~~6) 5.3v
7) 53mv~~~~~~~~~~~~~7) 4.51v
8) 32mv~~~~~~~~~~~~~8) 15mv
9) 3.31v~~~~~~~~~~~~~9) 3.3v
10) 161mv~~~~~~~~~~~~10) 2.8v
11) 156.3mv~~~~~~~~~~~11) 3v
12) 0~~~~~~~~~~~~~~~12) 1.8vLast edited by ratboy99; 05-03-2013, 01:05 AM.Leave a comment:
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Re: Samsung syncmaster t220 Powers on no screen.
ok will do. its getting pretty late for me tonight i'll take the readings and report back first thing in the morning thanks for being so helpfull. also would one of the screws or case work as a sufficent ground or should i use one of the grounds in the connector.Leave a comment:
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Re: Samsung syncmaster t220 Powers on no screen.
I don't have the best camera but heres a picture of the connector and pin lableing...Leave a comment:
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Re: Samsung syncmaster t220 Powers on no screen.
fuse was .1 ohm.
Where would you like me to check the voltages at? are you talking about the 12 pin connector that goes to the smaller main board? I'm fluent in using a DMM but i work in the automotive field we never really get into the boards them selfs.Leave a comment:
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Re: Samsung syncmaster t220 Powers on no screen.
my brother is electronic engineer and replaced the 2 bloated caps for me. the brand is OST i think getting him to diagnose the board any farther then that is pretty much not gona happen thats why i've come here.Leave a comment:
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Re: Samsung syncmaster t220 Powers on no screen.
fuse is good that's one of the few things i checked.Leave a comment:
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Samsung syncmaster t220 Powers on no screen.
I've got a Samsung syncmaster t220 that at first would take a long time to turn on. light would slowly blink faster and faster untill it powered on. once it was on i just left it on.
After a recent move from AZ to OR the monitor did its typical flashing power light deal exept this time once the light stopped flashing and was steady i only had a black screen.
So figuring the caps finally died. i pulled it apart and found 2 caps that where nice and fat one was slightly relocated as it was pulling up the trace when it was removed. replaced the 2 caps put it all back together powered it...
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