KS-AX6700
1-8
Adjustment method
1.
.
Check the voltage and frequency of the secondary
toroidal coil.
2.
Measure the secondary toroidal coil, if the standard
frequency value of 24.35 kHz ± 10 Hz is not attained,
measure the R760 terminal, then adjust the VR701
so that the R760 terminal becomes 24.25 kHz ± 10Hz.
Note:
TEST SET
FREQUENCY COUNTER
MAIN PCB
(+)
(
-
)
POWER SUPPLY
14.4V
R760
Measuring
Points
88Vp-p
±2.5V
DC/DC CONVERTER SECOND GENERATOR SWITCHING
TEST ITEM
VOLTAGE TEST
FREQUENCY CHECK
88Vp-p±2.5V
24.350KHz±10Hz
OSCILLOSCOPE
VOLT/DIV: 10
TIME/DIV: 10mcec
VARIABLE: MINIMUM
SPECIFICATION CONDITION
FREQUENCY:24.35kHz ±10Hz
VOLTAGE VALUE:55Vp-p
When measuring, adjust and apply power
with no signal or load on each board.
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