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2-1. Replacement of Main Parts
2-2. Note on Servicing
2-1-7. DC Fan Motor Replacement
The unit has DC fan motor in the power unit.
When replacing the DC fan motor, the following procedure
is described as shown below.
Recommended replacement hours(h)
100,000 H
(Total hours when the power of the unit is on.)
How to remove DC fan motor
c
When replacing the DC fan motor, be sure to turn the
power off, and then power cord is disconnected.
1. Disconnect the harness of DC fan motor from J6 on
the CN-1013 board.
2. Remove the four screws, then remove the ventilation
plate, DC fan motor and bracket from the chassis
assembly.
B3 × 30
How to install DC fan motor
n
In replacing, install the DC fan motor with the label faced
forward. Improper installation causes the trouble of
overheating inside the unit.
1. Attach the ventilation plate, DC fan motor and bracket
with four screws to the chassis assembly.
2. After the power unit is installed, connects the harness
of the DC fan motor to J6 connector on the CN-1013
board.
3. Connects the power cord, and turn the power on, make
sure that the air flows from inside to outside of the
unit.
2-4
Name
DC Fan Motor
DC Fan moter
Bracket
Label
Ventilation plate
Chassis assembly
2-2. Note on Servicing
2-2-1. Precaution of Replacement Parts
1. Safety Related Components Warning
Components marked ! are critical to safe operation.
Therefore, specified parts should be used in the case of
replacement.
2. Standardization of Parts
Some repair parts supplied by Sony differ from those
used for the unit. These are because of parts common-
ality and improvement.
Parts list has the present standardized repair parts.
3. Stock of Parts
Parts marked with "o" at SP(Supply Code) column of
the spare parts list may be not stocked. Therefore, the
delivery date will be delayed.
4. Units Representation
The following represented units are changed or
omitted in writing.
Units
µF
Capacitance
µH
Inductance
Z
Resistance
Temperature
dC
5. Destination Representation
The part indicated "For J/UC/CE" in the spare parts
list is used in the unit written below.
For J
: The part is used in a unit for Japan.
For UC: The part is used in a unit for U.S.A. and
Canada.
For CE : The part is used in a unit for regions except
the above countries.
2-2-2. PROM IC
Each PROM IC on the PC board has a suffix to its original
designation. This suffix may change according to improve-
ment of IC. Never use an IC having no suffix to its original
designation, because its memory has not been pro-
grammed. Each PROM IC is mounted on the PC board via
socket.
Representation
uF
uH
Abbreviation
XXX-DEG-C
CCU-700A(UC)
CCU-700AP(CE)
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