HP Integral PC 82971A EPROM/ROM module - anyone have docs?

I have such a board. I have an uofficial hand-drawn schematic that's available in the usual way. I;ve also deduced the function of the DIP switches, and include that information below. HP82971 ROM/EPROM Module (for Integral PC) DIP switch settings -------------------------------------------------------------- S1 1-4 : Set card address (Off = logic 1) 1 : A19 2 : A20 3 : A21 4 : A22 S1 5-6 : Select wheter A20 is used to select the card : Exactly 1 of 5,6 must be on 5 On, 6 Off : A20 not used (S1(2) ignored) 5 Off, 6 On : A20 used S1 7-8 : Select wheter A19 is used to select the card : Exactly 1 of 7,8 must be on 7 On, 8 Off : A19 not used (S1(1) ignored) 7 Off, 8 On : A19 used S2 1-2 : Select use of ROM pin 22 Exactly 1 of 1,2 must be on 1 on, 2 off : Pin 22 gets A17 (pin is A16) 1 off, 2 onn : Pin 22 grounded (pin is OE/) S2 3-5 : Select bit 0 of ROM select decoder Exactly 1 of 3,4,5 must be on 3 : A16 4 : A17 5 : A18 S2 6-8 : Select bit 1 of ROM select decoder Exactly 1 of 6,7,8 must be on 6 : A19 7 : A18 8 : A17 S3 1-2 : Select use of ROM pin 1 Exactly one of 1,2 must be on 1 on, 2 off : Pin 1 gets +5V (pin is Vpp) 1 off, 2 on : Pin 1 gets A16 (pin is A15) S3 3-5 : Select pit 2 of ROM select decode Exactly 1 of 3,4,5 must be on 3 : A20 4 : A19 6 : A18 S3 6 : Not used S3 7,8 : Select timing Exactly 1 of 7,8 must be on 7 on, 8 off : DTACK after 300 ns 7 off, 8 on : DTACK after 200 ms Sensible combinations 512K Card 1M Card 2M Card ---------------------------------- 32K ROM 64K RPM 128K ROM S1 5 Off Off On S1 6 On On Off S1 7 Off On On S1 8 On Off Off S2 1 Off Off On S2 2 On On Off S2 3 On Off Off S2 4 Off On Off S2 5 Off Off On S2 6 Off Off On S2 7 Off On Off S2 8 On Off Off S3 1 On Off Off S3 2 Off On On S3 3 Off Off On S3 4 Off On Off S3 5 On Off Off Unfortunately the slots in both my Integrals are full of more useful PCBs, do this one is sitting on the shelf. I beleive there's software on the Australian site to burn files into EPROMs which are then plugged into this board. I've not tried it yet. -tony