Read Harman Kardon AVR 507 (serv.man2) EMC - CB Certificate online
-
IEC 60065, 6th edition : 1998
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- Page 37 of 38 -
Order
No.
11152
FAULT CONDITION TESTS (continued)
P
Comp.
No
No
Fault Test
V
Short
current
current
Test time
Fuse No
Current
through
fuse
through
fuse
Mains power/temperatures/results
Q804
S-c
254,4
C - E
10 min
F907
F905
F906
F905
F906
-
Unit shut down immediately.
Input current stabilised at 0,01A.
F905, F906 opened.
Q903, Q804 shorted.
No hazard.
Input current stabilised at 0,01A.
F905, F906 opened.
Q903, Q804 shorted.
No hazard.
Q804
S-c
254,4
B - C
10 min
F907
F905
F906
F905
F906
-
Unit shut down immediately.
Input current stabilised at 0,01A.
No component damaged.
No hazard.
Input current stabilised at 0,01A.
No component damaged.
No hazard.
C813 S-c
254,4 -
20
min
F907
F905
F906
F905
F906
1,56 A
Surround L channel signal output
off immediately.
Input current stabilised at 1,56A.
No component damaged.
No hazard.
off immediately.
Input current stabilised at 1,56A.
No component damaged.
No hazard.
D962
S-c
254,4
A - C
15 min
-
1,78 A
Sub transformer primary winding
heated-up to 109K thermal fuse
opened after 15 min.
Dielectric strength test O.K.
No hazard.
heated-up to 109K thermal fuse
opened after 15 min.
Dielectric strength test O.K.
No hazard.
C906
S-c
254,4
-
14 min
-
< 0,03 A
Mains relay off immediately.
Sub transformer primary winding
heated-up to 111K thermal fuse
opened after 14 min.
Dielectric strength test O.K.
No hazard.
Sub transformer primary winding
heated-up to 111K thermal fuse
opened after 14 min.
Dielectric strength test O.K.
No hazard.
C907
S-c
254,4
-
1 hr
-
< 0,02 A
Mains relay off immediately.
Sub transformer primary winding
heated-up to 80K and stabilised.
Dielectric strength test O.K.
No hazard.
Sub transformer primary winding
heated-up to 80K and stabilised.
Dielectric strength test O.K.
No hazard.
Fan
(Back cover)
Locked 254,4 -
5
hr
F907,
F903,
F904,
F905,
F906
F903,
F904,
F905,
F906
1,79 A
Normal operating.
The components are heated up to:
- Main transf. pr. winding : 70K
- Main transformer core
The components are heated up to:
- Main transf. pr. winding : 70K
- Main transformer core
: 57K
- Sub transf. pr. winding
: 55K
- Sub transformer core
: 42K
- D992 body
: 55K
- PWB near D992
: 58K
- Q803 body
: 63K
- PWB near Q804
: 60K
and stabilised.
Dielectric strength test OK.
No hazard.
Dielectric strength test OK.
No hazard.
F No = Fault Number, S-c = Short-circuit, Dis = Disconnection
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