ADJ DR-610 Service Manual

ADJUSTMENT

I)

Required Test Equipment

1.

Digital Multimeter

2.

Regulated Power Supply

Supply voltage:
Current:

3.

Oscilloscope

Measurable frequency: Audio Frequency

13.8VDC
15A

or more

d. Distortion Meter

Measurable frequency: 1
Input level:
Distortion level:

e.

Audio Generator

Output frequency:
Output impedance:

kHz

Up to 40dB
1% -100%

1

kHz-1 OkHz

6OOQ

unbalanced

4.

Spectrum Analyzer

Measuring range:

5.

Tracking Generator

Output frequency:

6.

Dummy Road

Measurable frequency: Up to
Impedance:

Power:

7

, . Speaker (2 units)

Impedance:

Up to

Up to

5052,

50W or more

8a

6. SSG

Output frequency:

Output level:
Moduration:

1

-2OdB/O.l uV

AM/FM

2GHz

or more

2GHz

or more

500MHz

unbalanced

GHz

or more

to1

20dB/l

f. Linear Detector

Filter:

10.96OObps

While pushing the FUNC key, push RC key.
Make sure that

Connect the plug to the
unit.

F

TX MOD

V

HPF

(30Hz-50Hz)

LPF (1

OkHz-1 5kHz)

Hi-Speed Packet Testing

“A”

flashes on the UHF

SPl

jack on the rear of the

2.50

stereo

plug

(To

ext

(UZOO22)

GND

RX OUTPUT

4.8kHz

3.00 monaural plug (To SP 1)

(UZOOo4)

-1

dBm

lOOmV/47k

(AF OSC)

mic terminal)

(Level meter, oscilloscope)

side.

9. Transceiver Tester

500MHz

a.

Frequency Counter

Power Meter

b.

Impedance:
Measuring range:

C.

Audio Voltmeter

Measurable frequency:

Sensitivity:

5OQ

50W or more

50Hz-1 OkHz

1mV -

or more

unbalanced

1OV

GND

ii”

PTT (TX: Low)

Note 1

1. All SSG output is indicated by EMF.

2. AG output level connecting with the load is measured.

3. Standard Modulation: 1

4. Audio Output level:

5. Coaxial cable:

5D2W

kHz +/- 35kHz/DEV

50mW-1 OOmW

1 m

at

8L2

Note 2

1. Power supply voltage is
Power switch is off.

2. Turn the squelch and volume knobs counterclockwise.

3. Press and hold the
The display shows the frequency as follows:

145.00

145.00

433.00 (E version)

445.00 (T version)

13.8V.

“F”

key, then turn the power switch on.

2) Adjustment Points

Sub Control Unit

Front Control Unit

Tone ENC Unit

DTMF 1750 X-bard

Repaaler (-Q

Main Unit

9600bps SP OUT

9600bps

‘r” EXT IN

MC

4

SFQ

0

TP4 (Thermal Relay)

Reference Frequency

TCl

ml

TC302

@I

c9

L322

@

El

f-1

1 QL70;D

VR3

@

(MAX DEV)

VR302

(Middle Power)

@

VR301

(High Power)

(Middle Power)

W%n VkPr

@ @ (High Power)

( @

(Squelch)

VR5

TPl

VR305

L16

0

q

L17

0

cl

%I

f

I

0

L

L

;;;-;;II

TP3

(Squelch)

VR303

@

VR304