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ADJUSTMENT
To obtain the best performance,
periodically calibrate the
unit. Sometimes,
only one mode need be calibrated, while
at other times, all modes should be calibrated. When one
mode is calibrated, it must be noted that the other modes
may be affected. When calibrating all modes, perform the
calibration in the specified sequence.
The following calibration required an accurate
measuring
instrument
and
an
insulated
adjusting
flat
blade
screwdriver. If they are not available, contact your dealer.
For optimum adjustment, turn the power on and warm up
the this equipment
sufficiently
(more than
30 minutes)
before starting.
Before
calibrating
the
unit,
check
the
power
supply
voltage.
TEST EQUIPMENT
REQUIRED
The following instrument or their equivalent should be used
for making adjustment.
oe
Model
quipment
Impedance: More than
Digital Multi-;
DL-706 | 10 MQ, Measuring range:
Meter
(KENWOOD)!
9.01 V to 199 V
Frequency: 10 Hz to
oe
aie
10 MHz, constant voltage
enerator
over tuning range
Frequency: 50 kHz to
100 MHz, Output impedan-
ce: 50 2, constant voltage
over tuning range.
Output signal: 1 kHz,
Amplitude: 5 mVp-p to
5 Vp-p, Accuracy: within
+1%, Rise time: 35ns or
less
1 MHz, Rise time: 1 ns or
less
Minimum
Specification
SG-503
(Tektronix)
Sine-Wave
Generator
Square-
Wave
Generator
4343B
coo!
CG-911A
Pattern
Generator
(KENWOOD)
Sensitivity: more than 5 mV
Oscilloscope
ec ancee,
Frequency response: More
than 100 MHz
Time-Marker | TG-501
Time mark: 0.5 s to 0.1ys
Generator
(Tektronix) | repetive waveform
Bees
al
input Impedance: 1000 MQ
Terminati
Impedance: 50 0
7
ees
3 watts type impedance:
—20 dB attenuation (50 0)
PG-506
(Tektronix)
PREPARATION
FOR ADJUSTMENT
Control Setting
The control setting listed below must
be used for each
adjustment procedure.
Exceptions to these settings will be noted as they occur.
After completing a adjustment, return the controls to the
following settings.
NAME OF KNOBS
POSITION
INTENSITY
3 o'clock
FOCUS
Optimum position
CH1, CH2 POSITION
Mechanical center
<>»
H. POSITION/PULL
x 10MAG | Mechanical center, push
VARIABLE
CAL
(SWEEP TIME/DIV, VOLTS/DIV)
AC-GND-DC (CH1 and CH2)
DC (GND at no signal)
MODE
CH1
CH2 POLARITY
NORM
COUPLING
AC
SOURCE
V.MODE
TRIG. LEVEL
Mechanical center, push
TRIG. MODE
AUTO
VOLTS/DIV
10 mV/DIV
SWEEP TIME/DIV
0.2 ms/DIV
11
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