Pioneer KURO KRP-500P, Руководство по обслуживанию

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112
KRP-500P
1 2 3 4
A
B
C
D
E
F
1 2 3 4
SE N S Assy
SE N SOR Assy
FA N CH Assy
50F Y DRI V E
Assy
50F X DRI V E
Assy
PO W ER SUPPLY
Unit
PO W ER SUPPLY Unit
P1
P2
Tape (white)
J101
J102
The J101 and J102 cables require correct orientation for
connection. Connect the connectors with white tape to the
PO
W ER SUPPLY Unit.
Blue
G N D
AC Inlet
Notes on Lead Dressing
Note: The wiring shown in the photo is different from the actual wiring, because the product in the photo is a prototype.
Upon servicing, be sure to restore the original wiring of the unit after repair work.
FA N Assy
Notes on Removing the POWER SUPPLY Unit
Discharge of residual electric charge
Immediately after the power cord is unplugged, residual electric charge remains for about 3-5 minutes in the capacitor inside
the PO
W ER SUPPLY Unit.
Before removing the PO W ER SUPPLY Unit, make sure that residual electric charge has fallen to a safe level.
How to discharge residual electric charge rapidly
Discharge residual electric charge by connecting two 220
Ω
(10 W ) forced discharging resistors (440
Ω
in total,) one to each
end, of C101.
<How to remove the POWER SUPPLY Unit>
1
Make sure that the power cord is unplugged. Check the voltage of both ends of C101, using a tester.
2
W ait until the voltage at both ends of C101 has fallen to 5 V or less.
3
W hen the voltage becomes less than 5 V , disconnect the connectors of the PO W ER SUPPLY Unit then remove it.
POWER SUPPLY Unit
Points of checking residual
electric charges:
After making sure that the voltage
of both ends of C101 has fallen
to 5
V or less, remove the PO W ER
SUPPLY Unit.