Receiver Section - Intek M-490 Plus Service Manual

Model No: 3390
Customer :

RECEIVER SECTION

Test Equipment Required
• RF Signal generator (RFSG)
• SSVM
• Distortion meter
• DC power supply
ALIGNMENT PROCEDURE
Step Setting
Audio output adjustment
MIC : Receive
Volume : Fully clockwise
Squelch: Turn to-
Counter clockwise
CH selector : 19
RF gain : Fully clockwise
1
CH9 : OFF
RFSG:27.185 MHz,1kHZ
1µV , 1.2 K Dev.
Created by:
For Stage:
Title
M-490 Plus
Figure 4
Connection
Connect RF signal
generator to EXT-ANT
jack. Connect SSVM
and distortion meter
with 8 ohm dummy
load
(Figure 7).
Approved by:
Release Date:
Drawring No:
Rev,Date:
Adjuster Adjust for
L101 Maximum indication
L102 on SSVM. Reduce
L103 output from RFSG
L104 until the audio output
L106 becomes about
L401 500mW (2V).
L402
L403
Rev.No:
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