First post, by tsalat
Hi,
I have one 286 boards to which I can not find any reference, i.e. no manual, jumper settings, etc... The board is looking fine although there was corrosion next to the battery. I have found one trace broken and fixed that but the board will not run. After turning it on, without VGA but with keyboard, the board starts to post on the post card but freeze always on the code 0F0E - without the Keyboard BIOS it stops earlier. I do not have any other keyboard bios and I am not sure if the W83C42_Winbond could be used for this. Anyway, I am not able to see any activity on the data or clk pin of the Keyboard DIN5 connector and the Keybord BIOS has no activity on KDAT and KCLK - using the W83C42 as a reference not sure if the pinout is fine. Xin and Xout has a signal.
I have focused so far on the key bios but I am not sure if it is a good approach.
Any suggestion what to try? I have no idea if the jumper settings are fine.
The post card shows activity but always freeze at: 0F0E, according to the code and AWARD bios it should indicate 0F - Test DMA Cont. 0; BIOS Checksum Test // Keyboard Detect and Initialization, 0E - Test Video Memory.
br, tomas