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From: cliff@ethos.UUCP (Cliff Elam)
Newsgroups: comp.sys.att
Subject: 0.0K COmbo board upgrade parts list
Message-ID: <1423@ethos.UUCP>
Date: Thu, 6-Aug-87 00:23:21 EDT
Article-I.D.: ethos.1423
Posted: Thu Aug  6 00:23:21 1987
Date-Received: Sat, 8-Aug-87 08:50:04 EDT
Organization: Humanities Forum at ethos, Gray, TN
Lines: 67
Keywords: long


Following is a more complete parts list for upgrading a PC7300 0.0K
EIA/RAM board to a 1.5M board.

There are a few unanswered questions before I (or you) take a deep
breath and begin:
1> What the **** is the part in location B1?
2> What speed are he **** drams?  I can get 120 or 150's but I don't
   want to do THAT kind of experimenting!
3> In a letter Mark Hilliard (seismo!rochester!kodak!gizzmo!mark) writes:
   : OK, but I notice that in the schematics there is a delay line that is
   : installed.  This delay line is in a chip package, where do you plan on
   : finding this at?  
   What's the news on this "delay line?" It's delaying me some!  (sorry)

Special Notes:
The list is taken from Craig Votava's (ihnp4!looney!cmv) posting: all I
did was add some data from a book.  Assume all standard disclaimers
apply.

----------------------------ASSEMBLY-LIST-BEGIN----------------------

(All data from my Motorola Schottky TTL Data book, copywrite 1983)

LOCATION: [A,B,C,E,H,J,K][5,6,7,8,9,10]
DESIGNATION: 48256 (memory chips, 256K by 1, 150ns) (or 120?)

LOCATION: [A,B,C,E,H,J,K][5,6,7,8,9,10]
DESIGNATION: (16 pin T/L sockets)

LOCATION: 1B
DESIGNATION: 74A574

LOCATION: 2C,2E                                 
DESIGNATION: SN74LS280 (9 bit odd/even parity generators/checkers)

LOCATION: 2H
DESIGNATION: MC74F00 (Quad 2-input NAND gate)

LOCATION: 2J
DESIGNATION: MC74F32 (Quad 2-input OR gate)

LOCATION: 3A 
DESIGNATION: MC74F08 (Quad 2-input AND gate)

LOCATION: 3H,3J                                 
DESIGNATION: MC74F138 (1-of-8 decoder/demultiplexer)

LOCATION: 3K,4A,4B,4C,4E,4H,4J,4K      
DESIGNATION: MC74F258 (Quad 2-input multiplexer (with 3-state outputs))

LOCATION: R1,R2 
DESIGNATION: 33 Ohm 1/4W (or better) 5% (or better) resistor

LOCATION: RP2,RP3,RP4,RP5,RP6,RP7,RP8,RP10,RP12   
DESIGNATION: 33 Ohm 8pin Resistor Pack 1/4W (or better) 5% (or better)

LOCATION: W1-3 
DESIGNATION: Jumpers, 6 pins total, two each location

----------------------------ASSEMBLY-LIST-END------------------------

-cliff elam
ihnp4!ethos!fubar!cliff
-- 
Cliff    {ihnp4,mcnc}!ethos!cliff
Increase our bandwidth: Shrink headers, use abbrev's, BAN CUTE SHIT!