Electronics > Repair
What more i can do?
u666sa:
--- Quote ---only problem is pin of BIOS as it is not receving power
--- End quote ---
Your BIOS chip does not get power on one of its pins? Is that correct?
Is it just one of the pins or several pins?
Where do the trace from that pin lead to?
222Lab_Test222:
--- Quote from: u666sa on November 04, 2024, 07:26:05 am ---
--- Quote ---only problem is pin of BIOS as it is not receving power
--- End quote ---
Your BIOS chip does not get power on one of its pins? Is that correct?
Is it just one of the pins or several pins?
Where do the trace from that pin lead to?
--- End quote ---
There are several of them which are data input pins of BIOS.
I couldnt find all pins where are they connected BUT some are connected to WACOM Ic.
Harry_22:
--- Quote from: 222Lab_Test222 on November 03, 2024, 11:40:24 pm ---NOTE: Its a Old Board, lots of IC Markings are gone, I barely can see.
--- End quote ---
Hi 222Lab_Test222!
Great job!
I'm amazed.
Please see the summary information on board below.
I'll rest for a while.
https://drive.google.com/file/d/1wb5cgWByBCWEy7prWqwgc3GSKpXOSSiq/view?usp=sharing
Harry_22:
So, when the computer starts up, it emits continuous beep and there is nothing on the screen.
This is very similar to the error with the video card, which is almost the entire board as we see.
I'll test this version tomorrow with my vintage 486DX2.
In the meantime, can you connect any monitor to CN18 (DB-15 -Analog RGB)?
222Lab_Test222:
--- Quote from: Harry_22 on November 04, 2024, 01:12:49 pm ---So, when the computer starts up, it emits continuous beep and there is nothing on the screen.
This is very similar to the error with the video card, which is almost the entire board as we see.
I'll test this version tomorrow with my vintage 486DX2.
In the meantime, can you connect any monitor to CN18 (DB-15 -Analog RGB)?
--- End quote ---
Yeah when i connect this motherboard to the whole system, and then power on it beeps continuously no break at all.
Are you referring CN16 or CN18, If it is CN18 it is keyboard, If CN16 then the Analong RGB is connection to display, without it display wont pop.
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