1-13. Circuit Protective Devices
1-13-1. Fuse
WARNING
The fuse is critical parts to safe operation. Replace the components with Sony parts whose part number
appear in the manual published by Sony. If the components are replaced by any parts other than the specified
ones, this may cause a fire or electric shock.
CAUTION
If fuse is replaced while the main power is kept on, this may cause electric shock. Before replacing fuse, not
only turn off the POWER switch but also remove the power cable that is connected to the Optical/electrical
connector.
This unit is equipped with fuse. Any an excessive current flow due to abnormality inside the equipment, the fuse blow.
If a fuse blows, turn off the main power of the equipment once and inspect inside of the equipment and remove the cause
of excessive current. After that, replace the fuse.
Board name
Ref. No.
Address
Name
Part No,
PS-778D00
F101
F2 (Side A)
Fuse (6.3 A /250 V)
1-523-140-11
1-13-2. Thermistor
This unit is provided with a positive coefficient thermistor (for power supply) as a circuit protective device. If an over
current flows in a positive coefficient thermistor or it heats up to a certain degree with the increase of the ambient
temperature, its internal resistance increases sharply to limit the current flowing in the circuit. When a thermistor is
activated, turn off the power and check the circuit of the unit.
After the cause of the problem is removed and the device cools down, turn on the power again. The unit will work
normally.
It takes about one minute for the device to cool down after power-off.
Board
Ref. No.
Address
Part No,
AT-167A
THP1
H1 (Side A)
1-533-817-21
THP2
H1 (Side A)
THP3
C1 (Side A)
1-804-458-21
THP4
C1 (Side A)
THP101
C3 (Side A)
1-803-353-21
AU-340
THP1
C2 (Side A)
1-803-615-21
AVP-15
THP101
H4 (Side A)
1-803-615-21
THP102
H4 (Side A)
THP103
H2 (Side A)
1-804-616-21
THP104
H2 (Side A)
THP105
H3 (Side A)
Continued
HDCU2500
1-30
Summary of Contents for 10001
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Page 374: ...PS 778D00 B SIDE SUFFIX 11 HDCU2500 9 18 ...
Page 392: ...HDCU2500 SY HDCU2500 CE J E 9 968 889 01 Sony Corporation Printed in Japan 2012 1 08 2012 ...