Read Harman Kardon AVR 230 (serv.man12) EMC - CB Certificate online
-
IEC 60065, 6th edition : 1998
-
- Page 37 of 37 -
Order
No.
14399
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
Surroun
d
(
d
(
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 -
10
min F907,
F903,
F904,
F905,
F906
F904,
F905,
F906
1,62 A
Unit shut down after 9 min.
Input current stabilised at 0,01A.
No component damaged.
No hazard.
Input current stabilised at 0,01A.
No component damaged.
No hazard.
Pmax
operating
Maximum
non-
clipped
output
signal
non-
clipped
output
signal
254,4 -
24
min F907,
F903,
F904,
F905,
F906
F904,
F905,
F906
3,53 A
The components are heated up to:
- Main transf. pr. Winding : 137K
- Main transformer core
- Main transf. pr. Winding : 137K
- Main transformer core
: 90K
- Q803 body
: 58K
- PWB near Q804
: 39K
and main transformer’s thermal fuse
opened after 24 min.
Dielectric strength test OK.
No hazard.
opened after 24 min.
Dielectric strength test OK.
No hazard.
F No = Fault Number, S-c = Short-circuit, Dis = Disconnection
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