Read Harman Kardon AVR 507 (serv.man2) EMC - CB Certificate online
-
IEC 60065, 6th edition : 1998
-
- Page 38 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
Speaker
Terminal
Terminal
S-c 254,4
Surround
(
(
L - ch.)
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.
Top cover
opening
opening
Blocked 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 : 81K
- Main transformer core
The components are heated up to:
- Main transf. pr. winding : 81K
- Main transformer core
: 66K
- Sub transf. pr. winding
: 65K
- Sub transformer core
: 55K
- D992 body
: 56K
- PWB near D992
: 58K
- Q803 body
: 66K
- PWB near Q804
: 58K
and stabilised.
Dielectric strength test OK.
No hazard.
Dielectric strength test OK.
No hazard.
Pmax
operating
Maximum
non-
clipped
output
signal
non-
clipped
output
signal
254,4 -
39
min F907,
F903,
F904,
F905,
F906
F904,
F905,
F906
3,80 A
The components are heated up to:
- Main transf. pr. Winding : 144K
- Main transformer core
- Main transf. pr. Winding : 144K
- Main transformer core
: 82K
- D992 body
: 81K
- PWB near D992
: 87K
- Q803 body
: 55K
- PWB near Q804
: 52K
and main transformer’s thermal fuse
opened after 39 min.
Dielectric strength test OK.
No hazard.
opened after 39 min.
Dielectric strength test OK.
No hazard.
F No = Fault Number, S-c = Short-circuit, Dis = Disconnection
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