[Techtoolslist] 9100s and Floppy drives updates

[John Robertson]

Shy send me a document he had on replacing a floppy drive on the 9100s. 
It does appear that I was slightly incorrect where I thought Fluke made 
several changes to a drive to enable it to work, rather it appears there 
is one modification and that is for the Sony F17 series where you add a 
jumper wire from the Disk Detect switch to pin 14 of the CN101 connector 
(for DR1) and other than setting the drive to D0 that is all.

ftp://ttl.arcadetech.org//home/mirrors/flippers/TTL/Test_Equipment/Fluke/9100%20Series/Floppy_Drive_PDFs/Fluke_Floppy_Replacement_Instructions_848283.pdf

My modification table previously listed appears to be valid for 
upgrading a 9100A to revision G.

If you have Revision G motherboard then I expect you have the 1.44 
upgrade done look for a bunch of jumpers on the underside to see if your 
board is already upgraded, but then it should say Rv F or G if factory 
done...

Finding working floppies is still problematic, SONY drives in the F17 
series should work with the added jumper assuming the drive is good. I 
suggest you first try the SONY F17 drive setting and if not then the 
CANNON HD using Service Disc 6.0, after upgrading the EPROMs to RV5.0/40MB.

If you want to update your MB to the G level allowing 1.44 Sony (?) 
floppies (& you need RV5.0 EPROM) then here are what I think are all the 
mods:

1) Cut traces @ W5, W6 and W7
2) Jumper W5 (connected to U27-P3) to U72-P9 (unused 7417 gate).
3) Jumper U72-P8 to W7 that connects to J14-P1
4) Jumper other side of W7 (ground) to W6 (side connected to J14-P4)
5) Jumper U27-P1 to U72-P5 (unused 7417 gate)
6) Jumper U72-P6 to J14-P16 (currently N/C)
7) Jumper W6 (connected to CHNG2 - J13-P1) to W5 (connected to J14-P2 - 
/SPARE)

8) for RV5.0 EPROM check that W2 is cut (40 Meg upgrade ROMs)

ftp://ttl.arcadetech.org//home/mirrors/flippers/TTL/Test_Equipment/Fluke/9100%20Series/System_DiscsRV6/9100-V5-ROMs_40_Meg_upgrade.zip

Photos:

ftp://ttl.arcadetech.org/TTL/Test_Equipment/Fluke/9100%20Series/Photos/

Hope this helps others, saved me a bunch of time!

John :-#)#

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