Required Test Equipment - Kenwood TR-751A Service Manual

TR-751A/E
ADJUSTMENT
REQUIRED TEST EQUIPMENT
1.
2.
11.
12.
13.
14.
DC V.M
1) High input impedance
RF VTVM (RF V.M)
1) Input impedance : 1MQ min., 2pF max
2) Voltage range : F.S = 10mV ~ 300V
3) Frequency range : Up to 450MHz
Frequency Counter (f. counter)
1) Input sensitivity : Approx. 50mV
2) Frequency range : Up to 450MHz
DC Power Supply
1) Voltage : 10V ~ 17V, variable
2) Current : 8A min
Power Meter
1) Measurement range Approx
2) Input impedance : 502
3) Frequency range : 450MHz
AF VTVM (AF V.M)
1) Input impedance : 1MQ min
2) Voltage range : F.S = ImV ~ 30V
3) Frequency range : 50Hz ~ 10kHz
AF Generator (AG)
1) Output frquency : 100Hz ~ 10kHz
2) Output voltage : 0.5mV ~ 1V
Linear Detector
1) Frequency range : 450MHz
Field Strength Meter
1) Frequency range : 450MHz
30W, 3W, 1W
| . Directional Coupler
Oscilloscope
1) High sensitivity oscilloscope
terminal
SSG
1) Frequency range : 144MHz and 430MHz bands
2) Modulation : AM and FM MOD.
3) Output level : —20dB to 100dB
Dummy Load
1) 8Q, SW (approx.)
Noise Generator
1) Must generate ignition:
monics beyond 450MHz
ith horizontal input
like noise containing har
144MHz ALL MODE TRANSCEIVER
15. Sweep Generator
1) Sweep range : 1440MHz and 430MHz bands
16. Tracking generator
PREPARATION
1)
Unless otherwise specified, knobs and switches should
be set as follows Table 10.
2)
3)
4)
5)
6)
Table 10
mic @)
ss @
@ no (mic)
© mr
up @) ©eu
GND @® vown
Fig. 12 MIC terminals (view from front panel side)
Use an insulated adjusting rod to adjust trimmers and
Coils.
To prevent damaging SSG, never set the stand by
switch to SEND while adjusting the receiver section
Be sure to turn the power switch OFF, before connect-
ing the power cable to a power source.
SSG output levels are those at the time the output
terminal is open.
Meter and display section should be set as follows
Fig. 13.
TR-7518,
Fig. 13
OFFSET ave
(3) (oa)