Read Harman Kardon HK 3380 (serv.man10) EMC - CB Certificate online
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IEC 60065, 6th edition : 1998
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- Page 36 of 37 -
Order
No.
14649
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
D617
S-c
254,4
A - C
18 min
-
1,16 A
Sub transformer primary winding
heated up to 114K and thermal fuse
opened after 18 min.
Dielectric strength test OK.
No hazard.
heated up to 114K and thermal fuse
opened after 18 min.
Dielectric strength test OK.
No hazard.
C625
S-c
254,4
-
17 min
-
0,05 A
Unit shut down immediately.
Sub transformer primary winding
heated up to 116K and thermal fuse
opened after 17 min.
Dielectric strength test OK.
No hazard.
Sub transformer primary winding
heated up to 116K and thermal fuse
opened after 17 min.
Dielectric strength test OK.
No hazard.
C626
S-c
254,4
-
2 hr
-
0,03 A
Unit shut down immediately.
Sub transformer primary winding
heated up to 73K and stabilised.
Dielectric strength test OK.
No hazard.
Sub transformer primary winding
heated up to 73K and stabilised.
Dielectric strength test OK.
No hazard.
D607
S-c
254,4
A - C
1 hr
F601
1,44 A
FL display off immediately.
Input current stabilised at 1,15A.
C619, C629, C632, D608, D609,
Q602 damaged.
No hazard.
Input current stabilised at 1,15A.
C619, C629, C632, D608, D609,
Q602 damaged.
No hazard.
C632
S-c
254,4
-
30 min
F601
1,30 A
FL display off immediately.
Input current stabilised at 1,10A.
R616 opened.
No hazard.
Input current stabilised at 1,10A.
R616 opened.
No hazard.
SPK 1
terminal
terminal
S-c
254,4
L - G
10 min
F601,
F603,
F604
F603,
F604
-
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.
Cover
opening
opening
Blocked 254,4 -
18
min. F601,
F603,
F604
F604
1,12 A
The components are heated up to:
- Main transf. pr. winding : 35K
- Sub transf. pr. winding : 31K
- D601 body
- Main transf. pr. winding : 35K
- Sub transf. pr. winding : 31K
- D601 body
: 56K
- PWB near D601
: 47K
- Q319 body
: 49K
- PWB near Q319
: 54K
- IC65 heat-sink
: 48K
and protection circuit operated.
Input current stabilised at 0,01A.
Dielectric strength test OK.
No hazard.
Input current stabilised at 0,01A.
Dielectric strength test OK.
No hazard.
F No = Fault Number, S-c = Short-circuit, Dis = Disconnection
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