Service manual
Model
No.
5304A
05304-90006
CHANGE
3
(Cont'd):
Page 9D-6-3, Table 9D-6-1:
Change
A1U15 to
1820-1112
INT CCT
SN74LS74.
Page 9D-8-5,
A1
(05304-60001) Schematic Diagram:
Add
"NOTE
4"
between A1Q1/A1Q3
and
A1Q2/A1Q4.
Add the
following under NOTES:
4.
"A1Q1/A1Q3
and
A1Q2/A1Q4
ARE
DUAL JFET N-CHAN UNITS WITH
CENTER LEAD
TO
CASE
CUT OFF".
Change
Ql-4 in
TABLE
OF
ACTIVE COMPONENTS
to
Ql/q3, Q2/Q4
and HP
PART NUMBER
to
1855-0213.
Page 9D-8-5:
In
table
of
active components:
Change
U15 to
1820-1112.
Alter Schematic
to
show change
of
wiring:
a)
Connect Pins
12 and 13 of U15
together.
b)
Remove track from
U13 Pin 10 to U15 Pin 13.
Page
3.