Removing The Bumpers - Agilent Technologies 53147A Assembly Level Service Manual

1
2
NOTE
Chapter 3 Replacing Assemblies

Removing the Bumpers

Removing the Bumpers
Use the following procedure to remove the front and rear protective
bumpers:
Remove the rear bumper by lifting the inner edge of the bumper away
from the shroud near one corner at the top and one side and pulling that
corner away from the instrument. Repeat the process with the remaining
corners until the bumper is free of the instrument.
20 GHz Counter/Power Meter/DVM
GHz MHz kHz Hz
POWER POWER METER COUNTER
Ch 12 CHANNEL 1
Counter
Rel Freq
Offset
Ext Rel Hold Power 10 Hz to 125 MHz
Avg On dB dBm Meter OUTPUT
Watts Rate Rmt SRQ
Rel Pwr mW Error 1MΩ
Standby Offset uW DVM
% Shift
MODIFY POWER METER DVM
Freq Cal Pwr + DAMAGE
Power Ref.
Menu Offset Factor Offset dBm/W +30 dBm
1.00mW 50MHz
Reset/ Resol Freq Avg Display Zero
Local Power COUNTER
CHANNEL 2
INPUT
On/Off Rate Rel Pwr Store 50MHz to 26.5 GHz
Shift Clear + / - Enter Offset Cal – Do NOT Exceed
DAMAGE
On/Off Sensor Max Power +27 dBm
50Ω
COUNTER
Gate
Chan Offset Rel Freq Display DAMAGE
Select On/Off DVM ±60 VDC
Figure 3-1. Removing the Bumpers
Use the same procedure (as in Step 1) to remove the front bumper.
The bumpers can be used to support and protect the instrument after the
shroud is removed. Place both bumpers on their inner edges on your work
surface, and then place the instrument on top of them. The rear bumper
can also serve as a holder for the instrument (once the bumper retainers
are removed) when you need to position it upright on either end.
3-4
Auxiliary
Main Power Reference 10 MHz
Agilent Counter/ Power Meter/ DVM
In or Out
! !
AC POWER FUSE OPTIONS
90-130 VAC 50/60/400 Hz 1.5A T
190-230 VAC 50/60 Hz 250V 001 Oven Time Base
002 Battery
RS- 232 GPIB
Made in U.S.A.
To avoid electrical shock: No user serviceable parts inside. This unit must be earth grounded.
WARNING: Do not remove covers. Refer all servicing to qualified personnel. of domestic and foreign content
Assembly Level Service Guide