AVR 8500 (serv.man2) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 47

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- 
IEC 60065, 6th edition : 1998
 - 
- Page 43 of 44 - 
 
 
   
 
Order No. 
200211174
 
 
 
 
 
FAULT CONDITION TESTS (continued)   
P 
Comp. 
No 
Fault 
Test V 
Position 
Test time  Fuse No 
Current 
through 
fuse 
Mains power/temperatures/results 
QR912 
S-c 
254,4 
B - E 
1 sec 
F452 
- 
Protection circuit operated 
immediately (
RLY452, RLY453
 off). 
Input current stabilised at 0,02A. 
No component damaged. 
No hazard.   
QR923 
S-c 
254,4 
C - E 
1 sec 
F452 
- 
Protection circuit operated 
immediately (
RLY452, RLY453
 off). 
QR915, QR916 shorted. 
RR929 opened. 
Input current stabilised at 0,02A. 
No hazard.   
QR923 
S-c 
254,4 
B - C 
1 sec 
F452 
- 
Protection circuit operated 
immediately (
RLY452, RLY453
 off). 
RR929 opened. 
QR915, QR916, QR917, QR918, 
QR921 shorted. 
Input current stabilised at 0,02A. 
No hazard.   
QR920 
S-c 
254,4 
C - E 
1 sec 
F452 
- 
Protection circuit operated 
immediately (
RLY452, RLY453
 off). 
RR929, RR936 opened. 
QR915 shorted. 
Input current stabilised at 0,02A. 
No hazard.   
QR920 
S-c 
254,4 
B - E 
30 min 
F452 
2,46 A 
Normal operating. 
Input current stabilised at 2,46 A. 
No component damaged. 
No hazard.   
QR919 
S-c 
254,4 
C - E 
1 sec 
F452 
- 
Protection circuit operated 
immediately (
RLY452, RLY453
 off). 
RR929 opened. 
QR915 shorted. 
Input current stabilised at 0,02A. 
No hazard.   
QR919 
S-c 
254,4 
B - C 
1 sec 
F452 
- 
Protection circuit operated 
immediately (
RLY452, RLY453
 off). 
Input current stabilised at 0,02A. 
No component damaged. 
No hazard.   
CR911 
S-c 
254,4 
- 
30 min 
F452 
2,39 A 
Front R channel signal output off. 
RR949 opened. 
Input current stabilised at 2,05A. 
No hazard.   
F No = Fault Number, S-c = Short-circuit, Dis = Disconnection
 
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