AVR 435 (serv.man4) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 41

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 - 
IEC 60065, 6th edition : 1998
 - 
- Page 37 of 38 - 
 
 
   
 Order 
No. 
39659
 
 
 
 
 
FAULT CONDITION TESTS (continued) 
Comp. 
No 
Fault Test 
Short 
current 
Test time
Fuse No
Current 
through 
fuse 
Mains power/temperatures/results 
D112 
S-c 
253 
A - C 
2 hr 
2,39 A 
Normal operated. 
Sub transformer primary winding 
heated up to 117K and stabilised. 
Dielectric strength test OK. 
No hazard. 
C116 S-c 
253  - 
hr 
30 min 
2,42 A 
Sub transformer primary winding 
heated up to 101K and stabilised. 
Dielectric strength test OK. 
No hazard. 
D105 
S-c 
253 
A - C 
5 min 
2,49 A 
Sub transformer primary winding 
heated up to 127K and thermal fuse 
opened after 5 min. 
Dielectric strength test OK. 
No hazard. 
C125 
S-c 
253 
8 min 
0,14 A 
Unit shut down immediately. 
Sub transformer primary winding 
heated up to 121K and thermal fuse 
opened after 7 min. 
Dielectric strength test OK. 
No hazard. 
Speaker 
terminal 
(Front) 
S-c 
253 
R - G 
10 min 
F101 
0,02 A 
Unit shut down immediately. 
Input current stabilised at 0,02A. 
No component damaged. 
No hazard. 
Cover 
opening 
Blocked 
253 
Top 
5 hr 
F101 
2,42 A 
Normal operated. 
The components are heated up to: 
- Main transf. pr. winding  : 76K 
- Main transformer core  : 41K 
- Sub transf. pr. winding  : 64K 
- Sub transformer core 
: 35K 
- PWB near D201 
: 44K 
- Q334 body 
 
: 59K 
- PWB near Q334 
: 51K 
and stabilised. 
Dielectric strength test OK. 
No hazard. 
Fan 
Locked 
253 
6 min. 
F101 
2,42 A 
Unit shut down after 5 min. 
Input current stabilised at 0,02A. 
No component damaged. 
No hazard. 
F No = Fault Number, S-c = Short-circuit, Dis = Disconnection
 
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