Kenwood TK-868G Service Manual page 25

TK-868G
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/501µV
SSG freq'
: 370.050MHz
SSG MOD : 3kHz
AF : 1.4V/4Ω
2. Sensitivity 1) Set test mode
• Wide Select "SENS" in tuning mode.
"S.E.N.S._."
Adjust [250]
SSG freq'
: 389.950MHz
SSG output : –103dBm/1.58µV AG
SSG MOD : 3kHz
AF output : 1V/4Ω
2) "S.ENS"
Adjust [ *** ]
SSG freq'
: 350.050MHz
3) "S.E.N.S"
Adjust [ *** ]
SSG freq'
: 370.050MHz
24
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
DVM TX-RX CV PLL
Power meter (A/2)
F. conter
Measurement
Test-
Unit Terminal Unit
equipment
SSG Rear ANT TX-RX L5
panel (A/2)
AF VTVM ACC
Oscilloscope (EXT.SP)
SSG Rear ANT TX-RX L13
panel (A/2)
AF VTVM ACC
Distortion (EXT.SP)
meter
Oscilloscope
DVM TX-RX RSSI
(A/2)
Front
panel
Adjustment
Parts Method
±0.1V
TC106 7.0V
TC109 7.0V
Check 0.8V or more
0.8V or more
Adjustment
Parts Method
AF output maximum.
RSSI voltage
L22 maximum.
CH / RSSI voltage
maximum.
Specifications/Remarks
Specifications/Remarks