Electronics > Repair
What more i can do?
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Shock:
I read this and I thought hmm beep only on a working board and I immediately thought a case opened tamper switch. I'd laugh if they are all working but a few aren't.
222Lab_Test222:

--- Quote from: asis on December 27, 2024, 12:48:32 am ---Hi,

If you have time, check the circuit by ringing the connections.
Please.
-
Next step will be - FRAM/ DRAM SIMM72.

--- End quote ---
There is no direct connection between CPU and BIOS. there seems to buffer IC between them.
Please check Reply #283 and #275.
If you do not understand the connection let me know.

Note: here looks like IC 10 11 12 13 acts as a bridge between data pins of BIOS and CPU.
asis:
Ok
I got that, but I don't see the type 10,11,12,13.
74LS245L x 4pcs?
-
I'll fix it.
Tnx.
222Lab_Test222:

--- Quote from: asis on December 27, 2024, 04:55:24 am ---Ok
I got that, but I don't see the type 10,11,12,13.
74LS245L x 4pcs?
-
I'll fix it.
Tnx.

--- End quote ---
They are on back side of PCB. Here is the image.
222Lab_Test222:
Time for New Year Break

be back again in a week

Happy New Year All
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