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ADJUSTMENT
Measurement
Test-
equipment
Unit Terminal
Adjustment
Unit Parts Method
Specifications/RemarksConditionItem
TK-760G/762G
Receiver Section
1.
Discriminator
1) Set test mode SSG Rear ANT TX-RX L5
AF output maximum.
• Wide CH : CH1 - Sig1 panel (A/2)
SSG output : –53dBm/501µV AF VTVM ACC
SSG MOD : 3kHz
Oscilloscope
(EXT.SP)
AF : 1.4V/4Ω
2) SSG MOD : OFF DVM TX-RX IC5 9pin 0.7V DC
(A/2)
2. Sensitivity 1) Set test mode SSG Rear ANT TX-RX L11 RSSI voltage
• Wide
Select “SENS” in tuning mode.
panel (A/2) L13 maximum.
“S.E.N.S” AF VTVM ACC L15
Adjust [120] K,M Distortion (EXT.SP) L18
Adjust [110] K2 meter
SSG freq'
Oscilloscope
: 161.050MHz K AG
: 149.050MHz K2
: 160.050MHz M DVM TX-RX RSSI
SSG output : –118dBm/0.28µV
(A/2)
SSG MOD : 3kHz
AF output : 1V/4Ω
2) “S.ENS” Front
CH /
Adjust [
***
] panel
SSG freq' .
: 148.050MHz K
: 136.050MHz K2
: 146.050MHz M
3) “S.E.N.S._.”
Adjust [
***
]
SSG freq'
: 173.950MHz K,M
: 161.950MHz K2
Measurement
Test-
equipment
Unit Terminal
Adjustment
Unit Parts Method
Specifications/RemarksConditionItem
1. PLL lock 1) Set test mode DVM TX-RX CV PLL TC106 7.5V K,M ±0.1V
voltage CH : CH3 - Sig1
Power meter
(A/2) 7.0V K2
RX F. conter
TX 2) PTT : ON (Transmit) TC109 7.5V
RX 3) CH : CH2 - Sig1 Check 1.0V or more K,M
AUX : ON (talk-around mode) 0.9V or more K2
TX 4) PTT : ON (Transmit) 0.5V or more K,M
1.0V or more K2
Common Section
Since the TK-762G cannot be tuned from the panel, the FPU (KPG-56D) should be used for adjustment.