Kenwood KR-4070 Service Manual page 21
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Also See for KR-4070:
- Instruction manual (13 pages) ,
- Instruction manual (12 pages) ,
- Instruction manual (12 pages)
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TEST EQUIPMENTS
AND
ITS
SPECIFICATIONS
AUDIO
SIGNAL
GENERATOR
(AG)
Ranges:
5Hz ~
500 kHz
Waveform:
Sine wave
Output:
10V rms.
Distortion:
0.01% or less
SOLID
STATE
VOLT METER
(SSVM)
Ranges:
03 mV ~
100V (full scale)
Frequency response:
5 Hz ~
500 kHz
Impedance:
1M-ohms
or more
Modulation frequency:
1 kHz, 400 Hz or external input
(input level 2V or less)
Deviation:
O ~
150 kHz
Output:
100 mV or more
S/N:
85 dB or more
Distortion (internal):
0.5% or less
OSCILLOSCOPE
(SCOPE)
Ranges:
DC ~
10 MHz
Sensitivity:
20 mV/cm
Impedance:
1M-ohms
or more
MULTIPLEX
SIGNAL
GENERATOR
(MPX-SG)
Modulation
frequency:
1 kHz or external input
(input level:
5V or less)
Separation:
60 dB or more
S/N:
85 dB or more
FREQUENCY
COUNTER
(COUNTER)
Frequency
response:
10 Hz ~
1 MHz
Sensitivity;
50 mV or more
Impedance:
1M-ohms
or more
DISTORTION
METER
Ranges:
01% ~
0.03% (full scale)
Sensitivity;
100 mV or more
ADJUSTMENT
Dummy
ant.
@ [RF-sc}-Z
@ [MPxsc}—far-
sc HZ
© [8-86 ZZ
©
DISTORTION
METER
NOTE:
SSVM's
test
lead
(+side)
clamps
the Cg47 body
and
~—side
lead is connected
to
the GND.
20 dB amp
100
>
—+14V
47 reve
anny
—14v
IC:
RC4558TA
* RI
1kQ (Gain:
40 dB)
10ki2 (Gain:
20 dB)
Qm15
(Qm16)
BIAS CURRENT ADJUSTING
METER
(B31-0125-05)
-
Qm17
(Qm 18)
EI
RAEI
ROE
LOIRE PAA RC
ETT ge 2
EU
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WF
ih
Meee bol
are ee
Fa
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ee
.
Tg5
21
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