Kenwood TK-860G Service Manual Supplement page 21

Common Section
Item Condition
1. PLL lock 1) Set test mode
voltage CH : CH3 - Sig1
RX
TX 2) PTT : ON (Transmit)
RX 3) CH : CH2 - Sig1
TX 4) PTT : ON (Transmit)
Receiver Section
Item Condition
1. Discriminator 1) Set test mode
• Wide CH : CH1 - Sig1
SSG output : –53dBm/501 V
SSG MOD : 3kHz
AF : 1.4V/4
2. Sensitivity 1) Set test mode
• Wide Select "SENS" in tuning mode.
"S.E.N.S"
Adjust [250]
SSG freq'
: 511.950MHz K2
: 519.950MHz M2
SSG output : –116dBm/0.35 V
SSG MOD : 3kHz
AF output : 1V/4
2) "S.ENS"
Adjust [ *** ]
SSG freq' : 485.050MHz
3) "S.E.N.S._."
Adjust [ *** ]
SSG freq'
: 498.550MHz K2
: 502.550MHz M2
3. Squelch 3 1) Set test mode
• Wide Select "SQL3" in tuning mode.
"S.QL3"
Adjust [ *** ]
SSG freq' : 485.050MHz
SSG output : –127dBm/0.1 V Oscilloscope
SSG MOD : 3kHz (Wide)
ADJUSTMENT
To adjust TK-862G, use KPG-56D, otherwise you cannot tune this transceiver from the front panel.
Measurement
Test-
Unit
equipment
DVM TX-RX CV
Power meter (A/2)
F. conter
Measurement
Test-
Unit
equipment
SSG Rear
panel
AF VTVM
Oscilloscope
SSG Rear
panel
AF VTVM
Distortion
meter
Oscilloscope
AG
DVM TX-RX RSSI
(A/2)
SSG Rear
panel
AF VTVM
Distortion
meter
AG
1.5kHz (Narrow)
TK-860G/862G
Adjustment
Terminal Unit Parts
PLL TC106 6.5V
TC109 6.5V
Check
Adjustment
Terminal Unit Parts
ANT TX-RX L5 AF output maximum.
(A/2)
ACC
(EXT.SP)
ANT TX-RX L13 RSSI voltage
(A/2) L22 maximum.
ACC
(EXT.SP)
Front CH / RSSI voltage
panel maximum.
ANT Front CH / Adjust to the
panel squelch threshold
ACC point.
(EXT.SP)
Specifications/Remarks
Method
0.1V
0.9V or more
0.9V or more
Specifications/Remarks
Method
21