8662A Option HI
1
08662-92019
Page 2 of 20
On page 3-43, in Section 3-53, Reading Control Settings, under Modulation, change the
table entries and footnote under Step 2 as follows:
Source
Code
128
128 and above
Modulation Modes
Internal
(Rate)
--
External
(Coupling)
None
Depends on source code of other mode
selected
FOOTNOTE
A Source Code of 128 will enable Special Function 51 which will select the external 10 MHz
reference source. A Source Code above 128 will enable the external 10 MHz reference source and a
Modulation Mode from the table above. To interpret a Source Code above 128, first subtract 128,
then interpret the remaining value from the above table entries.
On page 3-49, change part of Table 3-10, Special Function Codes, to read as follows:
Special Function
AUX FM Off
AUX FM On
EXT 10 MHz Off
EXT
10
MHz On
Code
None
None
50
51
On page 3-68, Modulation, External Source, under procedure, replace the last two
paragraphs with the following:
Option HI
1
deletes Special Function selection of the AUX FM INPUT. The instrument
is shipped with the AUX FM INPUT hardwired in the "OFF" position. Option HI
1
retains the
AUX FM INPUT capability, but must be rewired internally for an "ON" position. Therefore, all
standard specifications and operation procedures apply other than as noted above.
NOTE
The above applies to all Special Function and HP-IB references concerning
the
A UX
FM INPUT throughout the Operating and Service Manuals for the
8662A.
WARNING
Reconfiguration of jumper wires as described below should be performed only
by service trained personnel who are aware of
the
possible hazards involved
(for example, fire and electrical shock). Remove the power cord before
removing the instrument covers.
To enable the rear panel AUX FM connector,
a
jumper wire on the A4A9 Modulation
Drive Assembly must be connected from pin 3 of A4A9U7A to pin 14 of A4A9U6A. See Figure
8-537A
on page 18 of this Insert and P/O Figure
8-539
on page 20 of this Insert.
Copyright 1986 - HEWLETT-PACKARD COMPANY - Spokane Division
24001 E. Mission Avenue, Liberty Lake, WA 99019-9599 U.S.A.
To Next Page
Loading...
Need help?
General
