Operator Maintenance - HP 8447D Operation And Service Manual

Page 8
Model 8447D/E/F
40. Other Packing Material
41. If original container is not used, proceed as
follows:
a. Wrap instrument in heavy paper or plastic
before placing in inner container.
b. Place packing material around all sides of
the instrument and protect panel face with card¬
board strips.
c. Place instrument in a heavy carton or
wooden box and seal with strong tape or metal
band. A double-wall carton made of 200 pound
test material is adequate.
d. Mark shipping container; Delicate Instru¬
ment. Fragile, etc.
42. OPERATING INSTRUCTIONS
43. Connect the line power cable to the three-
prong rear panel socket and proceed as follows:
a. Select the line power to be used {115 or
230 volts) with the rear panel SELECTOR switch.
b. Connect the line power cable to line power.
c. Push LINE switch ON.
CAUTION i;
Do not apply power levels to the ampli¬
fier that are higher than the following:
8447D: 0 dBm
8447E: +10 dBm
8447F PREAMP: OdBm
8447F POWER AMP: +10 dBm
d. Attach INPUT and OUTPUT cables
; CAUTION !
Power out of the 8447E and power out
of the 8447F POWER AMP can exceed
100 mW. This may be enough power to
damage sensitive circuits connected to
OUTPUT.
44. OPERATOR MAINTENANCE
45. Operator maintenance is limited to replace¬
ment of the front panel LINE switch light, the A1
Power Supply fuse, and the rear panel fuse.
46. Fuses
47. To replace the rear panel fuse (FI), remove
the rear panel fuse knob and replace the fuse (see
rear panel for value of FI).
48. To replace the A1 Power Supply (A1F1)
fuse, turn the instrument on its top. Lift tilt stand
and remove the bottom cover. Replace the fuse
on the A1 Power Supply board (see parts list for
value of A1F1).
49. Lamp Replacement
50. To replace the front panel line switch lamp
(DS1), proceed as follows:
a. Disconnect cord from rear panel receptacle.
b. Pull the white cover portion of this switch
from the instrument and then remove the lamp
from inside the cover.
c. Replace old lamp with a new lamp (see
parts list for part number of DS1).
d. Place white cover into switch receptacle.
e. Align tab on white cover with socket and
push in.
51. PERFORMANCE TESTS AND ADJUST¬
MENT PROCEDURE
52. Test equipment and accessories required to
perform maintenance are listed in Table 2. Equip¬
ment other than recommended models can be
used provided the minimum specifications are
satisfied.
53. The performance tests assume the use of a
standard amplifier with BNC connectors. If an
amplifier with Type N connectors is to be tested,
suitable adapters will have to be added to the
equipment lists.
54. One series of performance tests and one ad¬
justment procedure covers all three amplifiers.
Where required, test steps list equipment settings,
etc., for each amplifier. If a test step lists only one
setting or specification, it is valid for all three
amplifiers. Disregard references to any amplifier
not being tested.