Circuit-Protection Part List; Circuit Protection Element; Replacing Fuse - Sony PDW-HD1500 Maintenance Manual

1-7. Circuit-Protection Part List

1-7-1. Circuit Protection Element

This unit is equipped with the positive characteristics
thermister(s) (power thermister) as the circuit protection
element. The positive characteristics thermister limits the
electric current flowing through the circuit as the internal
resistance increases when an exces-sive current flows or
when the ambient temperature increases.
If the positive characteristics thermister works, turn off the
main power of the unit and inspect the internal circuit of
this unit. After the cause of the fault is removed, turn on
the main power again. The unit works normally.
It takes about one minute to cool down the positive
characteristics thermister after the main power is turned
off.
Board Ref. No. (Address)
EM-6 THP1 (A-1/Side A)
PS-726 THP1 (C-3/Side A)
THP2 (B-1/Side A)
KY-624 F1 (B Side)
F2 (B Side)
PDW-HD1500/V1 (E)

1-7-2. Replacing Fuse

w
The fuse is essential parts for safe operation.
Replace the components with Sony parts whose part
numbers appear in the manual published by Sony. If the
components are replaced with any parts other than the
specified ones, this may cause a fire or electric shock.
c
If the fuse is replaced while the main power is kept on, this
may cause electric shock.
Before replacing the fuse, not only turn off the POWER
switch but also disconnect the cable that is connected to
the DC IN connector.
This unit is equipped with fuses.
The fuses blow if an excessive current flows due to
Part No.
abnormality inside the equipment. If fuses blow, turn off
! 1-805-846-11
the main power of the equipment once, and inspect inside
! 1-810-509-11
of the equipment and remove the cause of excessive
current. After that, replace the fuses.
! 1-803-615-21
! 1-803-353-21
Board
! 1-771-075-21
PS-726
RE-295
Ref. No. (Address) Part No./Name
! 1-576-659-11
F1
Fuse 5 A, 250 V
! 1-576-269-21
F100
Fuse 3.15 A,125 V
1-15