Circuit Protection Parts - Sony HDCU1000 Maintenance Manual

1-5. Circuit Protection Parts

Thermistors
HDCU1000/1080/1500 is provided with positive ther-
mistors 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.
1-6 (E)
Borad name Ref. No. Address
AT-167 THP1 H1 (A side)
THP2 H1 (A side)
THP3 C1 (A side)
THP4 C2 (A side)
THP101 C3 (A side)
AVP-6 THP100 H4 (A side)
THP101 H4 (A side)
THP102 H2 (A side)
THP103 H2 (A side)
THP104 H3 (A side)
THP105 H3 (A side)
THP106 H2 (A side)
DRX-5 THP1 G1 (A side)
THP2 G1 (A side)
THP3 H1 (A side)
THP4 H1 (A side)
THP5 D4 (A side)
THP6 D1 (A side)
THP7 B4 (A side)
DTX-5 THP101 B1 (A side)
THP102 E1 (A side)
THP103 E1 (A side)
THP104 D1 (A side)
THP105 D1 (A side)
THP106 C1 (A side)
VIF-34/34B THP1 A2 (B side)
THP2 A2 (B side)
THP3 C1 (B side)
THP4 A2 (B side)
THP5 A2 (B side)
THP6 A1 (A side)
EN-159A/ THP101 B4 (A side)
159B
THP102 C4 (A side)
THP103 H4 (A side)
THP104 J1 (A side)
THP105 H5 (A side)
THP106 H4 (A side)
THP107 H4 (A side)
Sony P/N
! 1-533-817-21
! 1-533-817-21
! 1-804-458-21
! 1-804-458-21
! 1-803-353-21
! 1-803-615-21
! 1-803-615-21
! 1-804-616-21
! 1-804-458-21
! 1-804-616-21
! 1-804-616-21
! 1-804-616-21
! 1-533-817-21
! 1-533-817-21
! 1-533-817-21
! 1-533-817-21
! 1-533-817-21
! 1-533-817-21
! 1-533-817-21
! 1-533-817-21
! 1-533-817-21
! 1-533-817-21
! 1-533-817-21
! 1-533-817-21
! 1-533-817-21
! 1-804-458-21
! 1-804-458-21
! 1-803-615-21
! 1-803-615-21
! 1-803-615-21
! 1-804-458-21
! 1-533-817-21
! 1-533-817-21
! 1-533-817-21
! 1-533-817-21
! 1-533-817-21
! 1-803-615-11
! 1-803-615-11
MM/HDCU1000 Series