2493HM problem

[satoshi]

Hello

I had the power button led of my 2493hm blinking too and i had to wait some time until it powers up. Now nothing turns on.
2 technicians told me that its unrepairable. The second told me that the central chip that gives the command to power up the monitor has broken
Except the inverter board there are 2 other boards in the 2493HM :



i have found both of them on eBay.
the pcb :
http://cgi.ebay.com/ws/eBayISAPI.dll...%3DI%26otn%3D2

and the other board (my picture) :


Please just tell me on which board is this central chip the technician talked about ?
As i can see there is a chance to repair my huge 24inch monitor

[kc8adu]

Re: 2493HM problem

caps on the power supply.
then the tiny sm caps on the logic board.
the symptom you describe nails it to caps.the slow startup that gets worse is a common symptom of dieing caps.

[retiredcaps]

Re: 2493HM problem

Post clear focused pics of the power board (both sides with top down view) after reading the FAQ on how to add pictures.

[satoshi]

Re: 2493HM problem

ok i will do it

[satoshi]

Re: 2493HM problem

so a detailed image from logic board i think is the one i posted before.

the PCB is this :

frond :


back :

[satoshi]

Re: 2493HM problem

and this is a video :

http://www.youtube.com/watch?v=wNnB56a6kV0

[retiredcaps]

Re: 2493HM problem

and this is a video :

http://www.youtube.com/watch?v=wNnB56a6kV0

Please read on how to insert pics

https://www.badcaps.net/forum/showthread.php?t=1868

Also, please describe your problem in more detail. For example,

I monitor ABC plugged using the VGA cable.

1) I press the power button and green LED comes on, but there is no picture on the monitor.

2) After 5 seconds, the power LED goes yellow and there is no picture.

OR

1) I press the power button and the LED does not light. There is no color and no picture.

If you have a multimeter, check for voltages on the logic card. You should see something like 5V, 12V and/or 3.3 V DC.

Also, check the fuses to see if they are open.

[satoshi]

Re: 2493HM problem

sorry for thr images i couldnt find the "how to" post.

1) Well, as i remember, first when u pressed the power button the LED was blining RED and after some minites was turning on.
2) After some time the monitor couldnt power on at all with the LED blinking RED.
3) Now neither the monitor nor the LED turn on.

[retiredcaps]

Re: 2493HM problem

If you have a multimeter, check for voltages on the logic card. You should see something like 5V, 12V and/or 3.3 V DC.

Also, check the fuses to see if they are open.

Now neither the monitor nor the LED turn on.

[satoshi]

Re: 2493HM problem

no i dont have a multimeter. why u suggest the logic board ?
do u have anything in mind ?

[PCBONEZ]

Re: 2493HM problem

Yeah,
He wants to know if the power from the power board is getting to the Logic board.
It's called 1/2 splitting.

If you don't have a multimeter I suppose you could use your tongue but if yours is like mine it's more of a go/no go check than an x-many volts check.
I never could get the damned thing calibrated right.

A multimeter is a pretty basic tool for this and it won't cost so much unless you want it to.

.

[satoshi]

Re: 2493HM problem

damn i decided to buy the PCB. I hope its not the logic. I told u that one of the technicians told me that the central chip that gives the command to power up the monitor is broken. Where is that damn chip ? to the PCB or to the Logic ????
That s why i am asking help

[PlainBill]

Re: 2493HM problem

damn i decided to buy the PCB. I hope its not the logic. I told u that one of the technicians told me that the central chip that gives the command to power up the monitor is broken. Where is that damn chip ? to the PCB or to the Logic ????
That s why i am asking help

:roll: The central chip is on the logic board.

PlainBill

[satoshi]

Re: 2493HM problem

u sure ????? tell me to cancel the transaction i did from the eBay !!!!!

[retiredcaps]

Re: 2493HM problem

I'll save you from getting blasted by PlainBill, but when people talk about the "central" or brains of the unit, it sits on the logic board.

AFAIK, when you bid and win, you are in a binding contract to buy the part from ebay.

PS. PCBONEZ, kc8adu, and PlainBill are 3 of the more knowledgable people on this forum. If they are all telling you something, I kindly suggest you pay attention and listen.

u sure ????? tell me to cancel the transaction i did from the eBay !!!!!

[satoshi]

Re: 2493HM problem

thnxs i am trying now to cancel the transaction and buy the logic board from the same seller.

[retiredcaps]

Re: 2493HM problem

If you have NO interest in learning how to fix this LCD or electronics, then buying the logic board is the best course of action for you because a technician in post #1 told you the logic board is bad.

If you want to learn more about repairing this LCD, then I suggest you get a multimeter and cancel the ebay transaction.

Anyways, it is your choice.

thnxs i am trying now to cancel the transaction and buy the logic board from the same seller.

[PlainBill]

Re: 2493HM problem

For what it's worth, replacing the entire logic board may be the best option. Many Samsung monitors suffer from a dead processor chip.

PlainBill

[satoshi]

Re: 2493HM problem

nice. thats the answer i was looking for my problem . thnxs
i will buy the logic. i will post the result

[pedro]

Re: 2493HM problem

For what it's worth, replacing the entire logic board may be the best option. Many Samsung monitors suffer from a dead processor chip.
PlainBill

Yep, got a pile of them here. Novatech processors (=crap).