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I f a test 6 error occurs and a MMU board and/or a P l anar board
Note :
requires rep lacement , the interface assembly shou ld also be replaced .
Incorrect memory capacity or defect ive memory expansion board .
12
place the memory expans ion board . The fol lowing chart lists
sett ings for the memory boards .
Memory Boards P/N 6636289 th rough 6636292
Switch bank
is used to set the start ing address o f the board . This
1
is done by entering the actual start ing address as a hexadecimal
number .
Therefor e , a starting address o f
or IFFFF . S ince switch
o f b ank 1 represents bit 17 , a value of hexadecimal
switch
2
set as:
ADDRESS
BITS
X indicates that the switch is set to the open pos ition .
To set a bit on , the appropriate switch must be set to the open po
s i t ion as shown here . Switch bank
on the board .
This is done by entering the actual ending address plus
one .
The chart that fol lows shows the switch sett ings for different
amounts of memory insta l l ed on each board .
o f bank
represents address
1
1
8
8
4
2
1
4
1--1--1--1--1--1--1--1--1
I
I
I
I
I
I
I
I X I
I
I
I
I
I
I
I
I
I
I
I
I
I
1--1--1--1--1--1--1--1--1
2
2
2
2
1
1
2
8
3
9
1
0
is used to s et the ending address
2
is entered as
20000
bit
2
1
I
I
=
hexadecimal
I
02
I
I
1
1
7
6
Fault Detection
Re
switch
20000-1
1 6 and
is
02
2-4
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