Kenwood TK-868HG, Service Manual

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ADJUSTMENT
Measurement
Test-
equipment
Unit Terminal
Adjustment
Unit Parts Method
Specifications/Remarks Condition Item
23
TK-868HG
2) “S . Q . L . 3” SSG Rear ANT Front CH / Adjust to the
Adjust [***] panel panel squelch threshold
SSG freq’ AF VTVM ACC point.
: 470.050MHz C Distortion (EXT.SP)
: 415.050MHz C3 meter
3) “S . Q . L . 3 . _ . ” Oscilloscope
Adjust [***] AG
SSG freq’
: 489.950MHz C
: 429.950MHz C3
• Narrow 4) “SQL3*** . ”
Adjust [***]
SSG freq’
: 470.050MHz C
: 415.050MHz C3
4. Squelch 9 1) Set test mode
• Wide Select “SQL9” in tuning mode.
“S
. QL9”
Adjust [***]
SSG freq’
: 450.050MHz C
: 400.050MHz C3
SSG output : –115dBm/0.4
µ
V
SSG MOD : 3kHz (Wide)
1.5kHz (Narrow)
2) “S . Q . L . 9”
Adjust [***]
SSG freq’
: 470.050MHz C
: 415.050MHz C3
3) “S . Q . L . 9 . _ . ”
Adjust [***]
SSG freq’
: 489.950MHz C
: 429.950MHz C3
• Narrow 4) “SQL9*** . ”
Adjust [***]
SSG freq’
: 470.050MHz C
: 415.050MHz C3
5. Squelch 1) Set test mode Check Squelch must be opened.
check CH : CH1 - Sig1~CH3 - Sig1 (Wide/Narrow)
SSG output : –116dBm/0.35
µ
V
2) SSG output : OFF Squelch must be closed.
(Wide/Narrow)
6. QT check 1) Set test mode
CH : CH1 - Sig4
SSG MOD
INT : 3kHz (Wide)
1.5kHz (Narrow)
EXT : 151.4Hz
SSG system MOD DEV
:
±
3.75kHz (Wide)
±
1.85kHz (Narrow)
SSG output : 10dB SINAD level
2) CH : CH1 - Sig3 Check Squelch must be opened.
CH1 - Sig5
CH1 - Sig6
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