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G7OSK > TECH 08.01.09 09:43l 28 Lines 1044 Bytes #999 (0) @ WW
BID : 300013G7OSK
Read: GUEST DK4IR DO4JTR OE7FMI
Subj: Micro Computer MK14
Path: DB0FHN<DB0RGB<OE5XBL<OE6XPE<DB0RES<F5GOV<CX2SA<GB7LDI
Sent: 090107/1633Z 58268@GB7LDI.#35.GBR.EU [58277] FBB7.01.35 alpha $:300013G7O
From: G7OSK@GB7LDI.#35.GBR.EU
To : TECH@WW
Hi All.
Thanks for reading this. I have had this Micro Computer for over 25 years.
This was made and not working when I was given this. I have now found the
main fault. No connection from one side of the PCB to the other at most
of the IC pin holes. I think I have now fixed this by soldering top and
bottom of the small IC's and replacing the large IC sockets with a type
that I can solder both sides of the PCB. When soldering the small IC's I
made a BIG mistake in fitting one of the ROMs in the wrong way round!! It
smoked!!
I am thinking of using an eprom in place of the 2 ROMs. I have the Monitor
Listing (OS) in the manual but when I check the good ROM with the lists
this do not match after HEX105, OK up to that.
Anyone remember having an MK14 or still have one or better still let me
have the correct listing.
The list I have has printing errors in the address column so may have
other errors.
Any help would be greatly appreciated.
Dave G7OSK@GB7LDI
d.ramm@btinternet.com
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