AVR 140 (serv.man4) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 44

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Report No.  65586 
 
 
11 
FAULT CONDITIONS TESTS-continued
 
P 
Comp. 
No. 
Location  Fault 
Test V 
Test  
time 
Fuse 
No. 
Current 
through 
fuse 
Temperature/Results 
C923 
- 
S-c 
253 
30 min 
F907 
1,03 A 
Output signal off immediately. 
Input current stabilised at 0,55A. 
No component damaged. 
No hazard. 
D915 
A - C 
S-c 
253 
30 min 
F907 
1,57 A 
Output signal dropped to 4V. 
Input current stabilised at 1,10A. 
R104 opened and D916 damaged.
No hazard. 
C931 
- 
S-c 
253 
30 min 
F907 
0,90 A 
Output signal off immediately. 
Input current stabilised at 0,47A. 
R104, R105 opened and 
D915 damaged.  No hazard. 
C909 -  S-c 207 10 
min 
F907 
F905 
F906 
- 
Surround, Center channels signal 
output off immediately. 
Input current stabilised at 0,81 A. 
F905, F906 opened. 
No hazard. 
C909 -  S-c 253 10 
min 
F907 
F905 
F906 
- 
Surround, Center channels signal 
output off immediately. 
Input current stabilised at 0,90 A. 
F905, F906 opened. 
No hazard. 
C916 -  S-c 253 10 
min 
F907 
F903 
F904 
- 
Front, S/B channels signal output 
off immediately. 
Input current stabilised at 0,86A. 
F903, F904 opened. 
No hazard. 
Q803 
C - E 
S-c 
207 
10 min 
F907 
F905 
F906 
- 
Unit shut down immediately. 
Input current stabilised at 0,01A. 
F905, F906 opened. 
No hazard. 
Q803 
C - E 
S-c 
253 
10 min 
F907 
F905 
F906 
- 
Unit shut down immediately. 
Input current stabilised at 0,01A. 
F905, F906 opened. 
Q804 shorted. 
No hazard. 
Q803 
B - C 
S-c 
253 
10 min 
F907 
F905 
F906 
- 
Unit shut down immediately. 
Input current stabilised at 0,01A. 
No component damaged. 
No hazard. 
F No = Fault Number, S-c = Short-circuit, Dis = Disconnection
 
 
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