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2.3 PM
1521101 from serialnumber DY
6611 onwards.
These instruments are provided with a 4K
ROM.
Pos.no
Descripton
Ordering
code
Replaced
by
Description
D1909
ROM
(2K)
5322 209 54696
obsolete
D1920
ROM
(2K)
5322 209 54697
5322
209
81665
ROM
(4K)
If an
instrument, with 2x2K ROM's,
has
to be
modified
to
an
instrument with
a
4K ROM,
proceed
as
follows:
-
Unsolder
the two
soldering spots
(see fig.
1
and
2
item
1)
-
Repair the track interruption
(see fig.
1
item
2)
-
Place
a
jumper.
Ordering
code 5322 263 64007 (see fig.
1
item
3)
Fig.
1.
Main
p.c.b.
iay-out,
component
side
Fig. 2.
Main
p.c.b. iay-out,
conductor
side
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