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From: det@hawkmoon.MN.ORG (Derek E. Terveer)
Newsgroups: comp.periphs.scsi
Subject: Re: <14414@nightowl.MN.ORG>
Message-ID: <1991May28.072536.452@hawkmoon.MN.ORG>
Date: 28 May 91 07:25:36 GMT
References: <14414@nightowl.MN.ORG> <283400121@adaptx1>
Organization: Home System (One of the Eternal Champions); Eagan, MN, 55123-2507, USA
Lines: 32

neese@adaptx1.UUCP writes:

>>The AHA-1540A/1542A user's
>>manual [(c) 1989] that i have for the 1542a states on page 3-2 that i
>>must remove the terminators at locations RN3, RN4, and RN5.

>The terminator resistors for the 1542A are located at RN3, RN4, and RN5.
>The 1542A is a surface mount full length board.  The only removeable parts
>are the BIOS, firmware, and the resistor terminator packs.

This is what i have.  It is full length and is surface mounted.  It has only
a few chips that are removable and has a floppy connection.

>>to the board and are labeled RN1, RN3, RN5, and RN6.  They are scattered
>>at various locations all over the board (RN1 by J1, RN3 by J4, RN5 and
>>RN6 by the BIOS).  Are the terminators for this board really the two
>>removable resistor DIPS RN2 and RN4?  If so, why did the board change
>>the number of packs from 3 to 2 or from 2 to 3 (depending on which came
>>first; my documentation or my board)?

>Sounds like the 1540 adapter.  This adapter is a TTL based adapters with only
>one surface mount part (AIC-6250).  The DIPS's are the terminator packs for
>this adapter.

Hmmm, but isn't the only (logical) difference between the 1540A and the 1542A
the floppy support?  I have floppy support on my board.

derek
-- 
Derek "Tigger" Terveer	det@hawkmoon.MN.ORG -- U of MN Women's Lax
I am the way and the truth and the light, I know all the answers; don't need
your advice.  -- "I am the way and the truth and the light" -- The Legendary Pink Dots