Kenwood TK-390, Service Manual

Page: 48 / 64

ADJUSTMENT
Measurement
Test-
equipment
Unit Terminal
Adjustment
Unit Parts Method
Specifications/Remarks Condition Item
48
TK-390
4. Sensitivity 1) Set panel test mode SSG Panel ANT Panel Top1/ Adjust for maximum 12dB SINAD or more
adjustment CH No. : 3 Top2 SINAD
and check Signalling No. : 1 AF VTVM Side Universal
(wide) Select SNS
✽ ✽ ✽
Oscilloscope
in panel tuning mode Distortion
Push Orange to 3 point meter
adjustment mode Audio
Select SNS
✽ ✽ ✽
analyzer
L
SSG freq. : Low
output : –116dBm/0.35
µ
V
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 12dB SINAD or more
check CH No. : 1
(narrow) Signalling No. : 1
SSG output : –116dBm/0.35
µ
V
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 Panel Top1/ Adjust to point of
squelch CH No. : 3 Top2 opening squelch
adjustment Signalling No. : 1
(wide) Select SQ T
✽ ✽ ✽
in panel tuning mode
SSG output : 6dB above to
12dB SINAD level.
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)
SSG output : 6dB above to
12dB SINAD level.
8. Squelch 1) Set panel test mode Adjust to point of
adjustment CH No. : 3 opening squelch
(wide) Signalling No. : 1
Select SQ O
✽ ✽ ✽
in panel tuning mode
SSG output : 3dB below to
12dB SINAD level