IFR COM-120B Service Manual

STEP
PROCEDURE
67.
Press ANLYZ
lnstruments
Key
(4).
Set Scan
Width
to
I
kHz.
68.
Verify
Signal
Peak is
on center
graticule
(t0.5
Major
Divisions).
lf in
tolerance,
go
to
Step
76.
PERFORM STEPS 69
THROUGH
75
ONLY
WHEN REQUIRED.
69.
Press
SETUP
MEMORY Key
(21).
70. Select
"1.
Calibration"
f rom
Setup
Screen.
71.
Press ENTER
Key
to access
Password Field. Press
SHIFT, F, M, Y,
S, V,
C,
D
and
SHIFT
Data
Entry Keys
(5).
Press ENTER Key.
72.
Select
"5.
SPECTRUM
ANALYZER" tO
access SPECTRUM ANALYZER
CALIBRATION
Screen.
73. Press ENTER
Key. Edit Data Field
using
DATA
SCROLL
Keys
(17)
until
signal
is
centered.
74.
Press ENTER
Key
and
wait
until
Field
displays CALIBnATED.
75. Press
RETURN
Soft
Function
Key F6
to
return
to Calibration
Screen.
Go
to Step 68.
76.
Set Signal
Generator
for 1
kHz
tone at 5
kHz
devation.
77. Verify
signal
peaks
on
Major Divisions
(10.5
Major
Divisions).
lf in
tolerance,
go
to Step
92.
PERFORM STEPS
78 THROUGH
91 ONLY
WHEN
REQUIRED.
78. Set COM-1208
Main Power
Switch to OFF.
79. Disconnect
coaxial
cables
f rom
Analyzer Tray.
80.
Remove
Analyzer Tray from
COM-1208.
lnstall
Analyzer
Tray Extender
Card
in
COM-1208.
Install Analyzer Tray
on Analyzer Tray Extender
Card.
81. Connect
Extender
Coaxial Cables to
Analyzer f ray
coaxial
cables using
SMB-SMB
adapters.
Install Extender
Coaxial Cables to
Analyzer
Tray.
82.
Set
COM-1208
Main
Power Switch
to ON.
Apply Powerto
COM-1208. Allow
5
minute
warm-up
period.
83.
Press ANLYZ
Instruments Key
(4)
to access Spectrum Analyzer
Operation Screen.
84.
Adjust 87A12F.26
(Figure
'l-7)
until
signal
peaks
on Major
Divisions.
85. Set COM-1208
Main Power
Switch to OFF.
86.
Disconnect coaxial cables
f rom
An
alyzer
Tray.
87. Remove
Analyzer Tray from Analyzer
Tray Extender
Card. Remove
Analyzer Tray
Extender
Card
f rom
COM-120B.
Install
Analyzer Tray in
COM-1208.
1
-34
STEP
PROCEDURE
67. Press ANL YZ Instruments Key (4). Set Scan Width to 1 kHz.
68. Verify Signal Peak is on center graticule (±O.S Major Divisions). If in tolerance, go to Step
76.
PERFORM STEPS 69 THROUGH 75 ONLY WHEN REQUIRED.
69. Press SETUP MEMORY Key (21).
70. Select "1. Calibration" from Setup Screen.
71. Press ENTER Key to access Password Field. Press SHIFT, F, M, Y, S, V, C, D and SHIFT
Data Entry Keys (5). Press ENTER Key.
72. Select "5. SPECTRUM ANALYZER" to access SPECTRUM ANALYZER CALIBRATION
Screen.
73. Press ENTER Key. Edit Data Field using DATA SCROLL Keys (17) until signal is centered.
74. Press ENTER Key and wait until Field displays CALIBRATED.
75. Press RETURN Soft Function Key F6 to return to Calibration Screen. Go to Step 68.
76. Set Signal Generator for 1 kHz tone at 5 kHz devation.
77. Verify signal peaks on Major Divisions (±O.S Major Divisions). If in tolerance, go to Step
92.
PERFORM STEPS 78 THROUGH 91 ONLY WHEN REQUIRED.
78. Set COM-120B Main Power Switch to OFF.
79. Disconnect coaxial cables from Analyzer Tray.
80. Remove Analyzer Tray from COM-120B. Install Analyzer Tray Extender Card in
COM-120B. Install Analyzer Tray on Analyzer Tray Extender Card.
81. Connect Extender Coaxial Cables to Analyzer Tray coaxial cables using 5MB-SMB
adapters. Install Extender Coaxial Cables to Analyzer Tray.
82. Set COM-120B Main Power Switch to ON. Apply Power to COM-120B. Allow 5 minute
warm-up period.
83. Press ANL YZ Instruments Key (4) to access Spectrum Analyzer Operation Screen.
84. Adjust 87A12R26 (Figure 1-7) until signal peaks on Major Divisions.
85. Set COM-120B Main Power Switch to OFF.
86. Disconnect coaxial cables from Analyzer Tray.
87. Remove Analyzer Tray from Analyzer Tray Extender Card. Remove Analyzer Tray Extender
Card from COM-120B. Install Analyzer Tray in COM-120B.
1-34
Scans by ArtekMedia © 2008

IFR COM-120B Specifications

General

Brand	IFR
Model	COM-120B
Category	Measuring Instruments
Language	English