Read Harman Kardon AVR 140 (serv.man4) EMC - CB Certificate online
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Report No. 65586
11
FAULT CONDITIONS TESTS-continued
P
Comp.
No.
No.
Location Fault
Test V
Test
time
time
Fuse
No.
No.
Current
through
fuse
through
fuse
Temperature/Results
Top cover
opening
opening
-
Blocked 253
10 min
F907
1,45 A
Unit shut down after 6 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
-
Maximu
m non-
clipped
output
signal
m non-
clipped
output
signal
253
24 min
F907
3,05 A
The components are heated up to:
- Main transf. pr. Winding : 147K
- Main transformer core : 89K
- D992 body
- Main transf. pr. Winding : 147K
- Main transformer core : 89K
- D992 body
: 93K
- PWB near D992
: 94K
- Q803 body
: 52K
- PWB near Q804
: 44K
and main transformer’s thermal
fuse opened after 24 min.
Dielectric strength test OK.
No hazard.
fuse opened after 24 min.
Dielectric strength test OK.
No hazard.
F No = Fault Number, S-c = Short-circuit, Dis = Disconnection
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