Circuit Protection Part List; Circuit Protection Element; Replacing Fuses - Sony PWS-110RX1A Service Manual

1-8.

Circuit Protection Part List

1-8-1.

Circuit Protection Element

This unit is provided with positive thermistors for power circuit.
If an overcurrent flows in a positive 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 Name Ref. No.
DIO-98 TH200
TH201
IF-1330 TH300
TH301
TH302
TH303
TH304
TH500
TH501
MB-1204 TH101
TH102
TH103
TH600
TH601
TH602
1-8-2.

Replacing Fuses

WARNING
The fuse is essential parts for safe operation. Replace it with one whose part number is listed in the manual.
If the components are replaced with any parts other than the specified ones, this may cause a fire or electric
shock.
CAUTION
Replacing any fuse is replaced while power is supplied to the unit may cause electric shock.
Before replacing any fuse, turn off the POWER switch and also disconnect the cable from the AC IN
connector.
This unit is equipped with fuses.
The fuses blow if an excessive current flows due to abnormality inside the equipment. If fuses blow, turn off the main
power of the unit once, and inspect inside of the unit and remove the cause of excessive current. After that, replace the
fuses.
Board Name Ref. No.
HPR-48 F4200
F4201
PWS-110RX1A
Part No.
1-805-580-11
!
1-805-580-11
!
1-802-607-11
!
1-802-607-11
!
1-802-607-11
!
1-802-607-11
!
1-802-106-11
!
1-771-075-21
!
1-771-075-21
!
1-804-616-11
!
1-804-987-21
!
1-804-616-11
!
1-804-987-21
!
1-804-987-21
!
1-804-987-21
!
Name
FUSE 10 A/125 V
FUSE 10 A/125 V
Holding Current
1.1 A/8.0 V
1.1 A/8.0 V
2.0 A/6.0 V
2.0 A/6.0 V
2.0 A/6.0 V
2.0 A/6.0 V
1.5 A/24 V
0.75 A/ 13.2 V
0.75 A/ 13.2 V
1.1 A/6.0 V
2.5 A/15 V
1.1 A/6.0 V
2.5 A/15 V
2.5 A/15 V
2.5 A/15 V
Part No.
1-576-329-21
!
1-576-329-21
!
Continued
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