KS-AX4700
1-7
Test method
1.
.
Check the voltage and frequency of the secondary
toroidal coil.
2.
Measure the secondary toroidal coil, if the standard
frequency value of 36.0 kHz ± 50 Hz is not attained,
measure the R60 terminal, then adjust the SV01 so
that the R60 terminal becomes 36.0 kHz ± 50Hz.
Note:
TEST SET
FREQUENCY COUNTER
MAIN PCB
(+)
(
-
)
POWER SUPPLY
14.4V
75Vp-p
±2.5V
DC/DC CONVERTER SECOND GENERATOR SWITCHING
TEST ITEM
VOLTAGE TEST
FREQUENCY CHECK
75Vp-p±2.5V
36.0KHz±50Hz
OSCILLOSCOPE
VOLT/DIV: 10
TIME/DIV: 10mcec
SPECIFICATION CONDITION
FREQUENCY:36.0kHz ± 50Hz
VOLTAGE VALUE:75Vp-p ± 2.5V
When measuring, adjust and apply power
with no signal or load on each board.
5
6
7
3
R01
R60
R03
C01
J09
Q01
C31
C68
Measuring
Points
MAIN PCB
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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