Kenwood TKR-750 Service Manual page 41

Item Condition
(Narrow) 3) CH : 2 (Narrow)
SSG output : 3dB below to
12dB SINAD level
SSG MOD : 1kHz
SSG DEV : 1.5kHz
AF : 2V/4Ω
4) SSG : OFF
19. Tight 1) Connect SSG to RX ANT.
squelch CH : 2 (Wide)
(Wide) SSG output : 7dB over to
12dB SINAD level
SSG MOD : 1kHz
SSG DEV : 3kHz
AF : 2V/4Ω
(Narrow) 2) CH : 2 (Narrow)
SSG output : 7dB over to
12dB SINAD level
SSG MOD : 1kHz
SSG DEV : 1.5kHz
AF : 2V/4Ω
20. RD outut 1) Connect SSG to RX ANT.
level CH : 2 (Wide)
(Wide) SSG output : –53dBm/501µV
SSG MOD : 1kHz
SSG DEV : 1.5kHz
(Narrow) 2) CH : 2 (Narrow)
SSG output : –53dBm/501µV
SSG MOD : 1kHz
SSG DEV : 1.5kHz
21. RA outut 1) Connect SSG to RX ANT.
level CH : 2 (Wide)
(Wide) SSG output : –53dBm/501µV
SSG MOD : 1kHz
SSG DEV : 1.5kHz
(Narrow) 2) CH : 2 (Narrow)
SSG output : –53dBm/501µV
SSG MOD : 1kHz
SSG DEV : 1.5kHz
22. Maximum 1) Connect AG to the MIC terminal. MOD ANA Rear
deviation A-low CH (TX VCO A low)
(Wide) A-center CH (VCO A center)
A-high CH (TX VCO A high)
B-low CH (TX VCO B low)
B-center CH (VCO B center)
B-high CH (TX VCO B high)
Deviation meter filter
HPF : OFF
LPF : 15kHz
De-emphasis : OFF
AG : 1kHz/50mV (Terminal load)
Transmission
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
SSG Rear RX ANT
Audio TEST/SPKR
analyzer jack SPO
VTVM (pin 12)
Oscilloscope
SSG Rear RX ANT
DVM CONTROL
I/O jack
RD
(pin 10)
4.7kΩ load
SSG Rear RX ANT
DVM CONTROL
I/O jack
RA
(pin 11)
4.7kΩ load
TX OUT
or
Deviation
meter
Oscilloscope
AG Front MIC
AF VTVM
TKR-750
Adjustment
Parts Method
PC adj.
Adjust to point of
opening squelch
Check Squelch must be closed.
PC adj.
Adjust to point of
opening squelch
PC adj.
Adjust to point of
opening squelch
± 5mV
PC adj.
80mV
± 20mV
PC adj.
400mV
± 0.1kHz
PC adj.
4.1kHz
Specifications/Remarks
43