Kenwood TK-290 Service Manual page 46

TK-290
Item Condition
4. Sensitivity 1) Set panel test mode
adjustment CH No. : 3
and check Signalling No. : 1
(wide) Select SNS
in panel tuning mode
Push Orange to 3 point
adjustment mode
Select SNS
L
SSG freq. : Low
output : –116dBm/0.35µV
2) Push Side2 to select
∗ ∗ ∗
SNS
M
SSG freq. : Center
3) Push Side2 to select
∗ ∗ ∗
SNS
H
SSG freq. : Hi
5. Sensitivity 1) Set panel test mode
check CH No. : 1
(narrow) Signalling No. : 1
SSG output : –116dBm/0.35µV
MOD. : 1kHz
DEV. : 1.5kHz
Turn the toggle SW to the
right (narrow)
2) Set panel test mode
CH No. : 3
Signalling No. : 1
Turn the toggle SW to the
right (narrow)
3) Set panel test mode
CH No. : 5
Signalling No. : 1
Turn the toggle SW to the
right (narrow)
6. Tight 1) Set panel test mode
squelch CH No. : 3
adjustment Signalling No. : 1
(wide) Select SQ T
in panel tuning mode
7. Tight 1) Set panel test mode
squelch CH No. : 3
adjustment Signalling No. : 1
(narrow) Select SQ T
in panel tuning mode
Turn the toggle SW to the
right (narrow)
8. Squelch 1) Set panel test mode
adjustment CH No. : 3
(wide) Signalling No. : 1
Select SQ O
in panel tuning mode
SSG output : 3dB below to
12dB SINAD level
46
Measurement
Test-
Unit
equipment
SSG Panel
AF VTVM Side
∗ ∗ ∗
Oscilloscope
Distortion
meter
Audio
∗ ∗ ∗
analyzer
∗ ∗ ∗
∗ ∗ ∗
∗ ∗ ∗φ
Adjustment
Terminal Unit Parts
ANT Panel Top1/ Adjust for maximum 12dB SINAD or more
Top2 SINAD
Universal
Check
Panel Top1/ Normally set to 110
Top2
Adjust to point of
opening squelch
Specifications/Remarks
Method
12dB SINAD or more