56
TK-690H
(
B
)
Test Equipment Required for Alignment
No.
Test Equipment
Major Specifications
1
Standard Signal Generator
Frequency Range
50kHz to 500MHz.
(SSG)
Modulation
Frequency modulation and external modulation.
Output
0.1
µ
V to greater than 1mV.
2
Power Meter
Input Impedance
50
Ω
.
Operation Frequency
50MHz or less.
Measurement Capability
Vicinity of 200W.
3
Deviation Meter
Frequency Range
29.7 to 50.0MHz.
4
Digital Volt Meter
Measuring Range
1 to 20V DC.
(DVM)
Accuracy
High input impedance for minimum circuit loading.
5
Oscilloscope
DC through 30MHz.
6
High sensitivity
Frequency Range
10Hz to 200MHz.
Frequency Counter
Frequency Stability
0.2ppm or less.
7
Ammeter
30A.
8
AF Volt Meter
Frequency Range
50Hz to 10kHz.
(AF VTVM)
Voltage Range
3mV to 3V.
9
Audio Generator (AG)
Frequency Range
50Hz to 5kHz or more.
Output
0 to 1V.
10
Distortion Meter
Capability
3% or less at 1kHz.
Input Level
50mV to 10Vrms.
11
Voltmeter
Measuring Range
10 to 1.5V DC or less.
Input Impedance
50k
Ω
/V or greater.
12
4
Ω
Dummy Load
Approx. 4
Ω
30W.
13
Regulated Power Supply
(Adjustable from 9 to 17V, 30A).
Useful if ammeter equipped.
Caution
Since the RX AF output is a BTL output, there is a DC
Component. Isolate this with a capacitor or transformer as
shown in the figure.
2 : HOOK (GRY)
4 : MIC (WHT)
3 : MICG (Shield)
10 : PTT (BLU)
5 : PTT (BLK)
To AG
AF VTVM
Cut
PTT SW
E30-3313-08
MIC connector
(Front view)
1 : SB
2 : HOOK
3 : MICG
4 : MIC
5 : Earth
6 : TRD
7 : NC
8 : DM
9 : BLC
10 : PTT
11 : NC
12 : NC
Test cable for speaker output
Test cable for microphone input
ADJUSTMENT
1
2
3
4
5
6
7
8
9
10
11
12