37
SX-20-K
5
6
7
8
5
6
7
8
A
B
C
D
E
F
7. DISASSEMBLY
Note
1
:
Even if the unit shown in the photos and illustrations in this manual may differ from your product, the procedures
described here are common.
Note
2
:
As for the assembling, please perform assembling following to the opposite procedures of How to Disassemble.
If any notes are existed, please follow those instructions.
Note
3
:
Discharge the electricity of the unit, before the diagnosis. (Refer to the
“
[1]
Discharge”
)
[1]
Discharge
47 to 100
Ω
2W or more
47 to 100
Ω
2W or more
MAIN ASSY
J289 (B-)
C510 (B-)
J319 (B+)
C509 (B+)
J290 (B-)
MAIN ASSY
J138 (-30V)
J186 (GND)
FPC101
GUIDE R ASSY
Front
Front
[1-1]
Main
Capacitor
(C509,
C510)
(1) Unplug the power cord.
(2) Remove the Cabinet.
(Refer to the
“
[2-1]
Cabinet”
. )
(3) Connect J319(B+) of the MAIN ASSY to
J289(B-) or J290(B-), with a resistor of 47 to
100
Ω
, 2W or more.
∗
Discharge time: 30 to 60 sec. (according to
the resistor.)
(4) Check by a tester if the voltage of each B+
and B- terminal is 1 V or less.
∗
Connect the tester's GND terminal to a
Chassis.
∗
If the voltage is higher than 1V, repeat the
step (3).
[1-2]
FL
-30V
[
Method:
1
]
(1) Unplug the power cord.
(2) Remove the Cabinet.
(Refer to the
“
[2-1]
Cabinet”
. )
(3) Disconnect the connector.
(Refer to the step (1) and (2) of
“
[2-2]
Front
Section”
. )
(4) Connect J138(-30V) of the MAIN ASSY to
J186(GND), with a resistor of 47 to 100
Ω
,
2W or more.
∗
Discharge time: 5 to 10 sec. (according to
the resistor.)
(5) Check by a tester if the voltage of -30V
terminal is 1 V or less.
∗
Connect the tester's GND terminal to a
Chassis.
∗
If the voltage is higher than 1V, repeat the
step (4).
Summary of Contents for SX-20-K
Page 7: ...7 SX 20 K 5 6 7 8 5 6 7 8 A B C D E F ...
Page 11: ...11 SX 20 K 5 6 7 8 5 6 7 8 A B C D E F IC502 IC503 IC301 ...
Page 32: ...32 SX 20 K 1 2 3 4 A B C D E F 1 2 3 4 Pin Function ...
Page 47: ...47 SX 20 K 5 6 7 8 5 6 7 8 A B C D E F 1 x9 x5 x3 x3 x5 x6 x6 x5 x2 x15 x2 x2 x2 x4 x4 A A A ...
