Harman Kardon AVR 255 (serv.man3) EMC - CB Certificate ▷ View online
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Page 33 of 43 -
Report
No.
98389
Measured at 1/8 of maximum non-clipped output at 50Hz;
Un (V)
In (A)
Pn (W)
Pout (W)
253
2,38
461
2 x 10,0 W
(F)
1 x 10,1 W
(C)
2 x 10,4 W
(S)
2 x 10,0 W
(S/B)
230
2,33
412
2 x 10,0 W
(F)
1 x 10,1 W
(C)
2 x 10,4 W
(S)
2 x 10,0 W
(S/B)
220
2,30
392
2 x 10,0 W
(F)
1 x 10,1 W
(C)
2 x 10,4 W
(S)
2 x 10,0 W
(S/B)
198
2,24
347
2 x 10,0 W
(F)
1 x 10,1 W
(C)
2 x 10,4 W
(S)
2 x 10,0 W
(S/B)
Measured at 1/8 of maximum non-clipped output at 60Hz;
253
2,36
458
2 x 10,0 W
(F)
1 x 10,1 W
(C)
2 x 10,4 W
(S)
2 x 10,0 W
(S/B)
242
2,34
435
2 x 10,0 W
(F)
1 x 10,1 W
(C)
2 x 10,4 W
(S)
2 x 10,0 W
(S/B)
230
2,30
410
2 x 10,0 W
(F)
1 x 10,1 W
(C)
2 x 10,4 W
(S)
2 x 10,0 W
(S/B)
220
2,28
390
2 x 10,0 W
(F)
1 x 10,1 W
(C)
2 x 10,4 W
(S)
2 x 10,0 W
(S/B)
198
2,21
343
2 x 10,0 W
(F)
1 x 10,1 W
(C)
2 x 10,4 W
(S)
2 x 10,0 W
(S/B)
Tested condition: 1kHz sign
wave input signal
with 8 ohm loads connected
for F, C, S and S/B channels
Loudspeaker impedance (Ω) ......
8 Ohm
—
Several loudspeaker systems
Right and Left for Front,
Only one for Center,
Right and Left for Surround,
Right and Left for Surr Back channels
Only one for Center,
Right and Left for Surround,
Right and Left for Surr Back channels
P
Marking of loudspeaker
terminals
terminals
SPEAKERS ( 8
Ω ): FRONT, CENTER,
SURR, SBR/ZONE2
P
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Page 34 of 43 -
Report
No.
98389
Measured at 1/8 of maximum non-clipped output;
Monitored point:
dT (K) at
253V, 50Hz
dT (K) at
198V, 50Hz
dT (K) at
253V, 60Hz
dT (K) at
198V, 60Hz
Limit dT (K)
*)
Sub transformer core
37.8 29.6 36.6 27.9 85
Main transformer core
54.5 44.5 52.8 42.8 95
C909 capacitor body
37.9 30.9 37.6 29.5 85
°C
Q803 body
74.9 53.3 75.2 52.1 -
PWB near Q803
50.2 36.7 49.8 35.6 95
FAN body (Internal main heatsink center)
35.3 27.3 35.0 26.1 -
FAN body (Internal main heatsink side)
16.3 11.8 15.4 11.1 -
D992 body
75.5 67.5 72.5 64.0 -
PWB near D992
75.4 69.1 75.6 67.1 95
PWB near D991
84.8 78.7 85.9 77.6 95
Main heat-sink
63.2 45.4 62.3 44.3 -
Power cord bushing
29.9 23.9 28.7 22.1 60
Power switch button (non-metallic)
20.3
16.4
18.8
14.9
50
Top cover above main heat-sink
27.0
20.2
26.1
19.6
40
Top cover above main transformer
26.8
20.3
26.1
19.4
40
Front panel (non-metallic)
14.1
11.6
13.0
9.2
60
Standby button (non-metallic)
4.7 3.3 4.6 2.2 50
*) Temperature rise limits for Singapore is 10K less
Winding temperature rise
measurements
measurements
253V,
50Hz
198V,
50Hz
253V,
60Hz
198V,
60Hz
—
Ambient temperature t1 (
o
C) :
26.0 26.0 26.0 26.0
—
Ambient temperature t2 (
o
C) :
24.5 24.3 24.7 22.7
—
Temperature rise dT of winding:
R
1
(Ω)
R
2
(Ω)
dT (K)
Limit dT (K)
*)
Insulation
class
Main transf. primary winding (253V, 50Hz)
1.799 2.327 78.0 95
B
Sub transf. primary winding (253V, 50Hz)
4717 5377 37.9 85
E
Main transf. primary winding (198V, 50Hz)
1.799 2.231 64.3 95
B
Sub transf. primary winding (198V, 50Hz)
4717 5231 30.1 85
E
Main transf. primary winding (253V, 60Hz)
1.799 2.314 75.9 95
B
Sub transf. primary winding (253V, 60Hz)
4717 5371 37.4 85
E
Main transf. primary winding (198V, 60Hz)
1.799 2.212 63.1 95
B
Sub transf. primary winding (198V, 60Hz)
4717 5172 28.4 85
E
*) Temperature rise limits for Singapore is 10K less
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Page 35 of 43 -
Report
No.
98389
Measured at 1/8 of maximum non-clipped output;
Monitored point:
dT (K) at
198V, 60Hz
dT (K) at
242V, 60Hz
Limit dT (K)
Sub transformer core
27.9
33.1
85
Main transformer core
42.8
49.4
95
C909 capacitor body
29.5
34.1
85
°C
Q803 body
52.1
68.6
-
PWB near Q803
35.6
44.9
95
FAN body (Internal main heatsink center)
26.1
31.7
-
FAN body (Internal main heatsink side)
11.1
12.8
-
D992 body
64.0
68.3
-
PWB near D992
67.1
71.9
95
PWB near D991
77.6
82.4
95
Main heat-sink
44.3
57.0
-
Power cord bushing
22.1
26.0
60
Power switch button (non-metallic)
14.9
17.2
50
Top cover above main heat-sink
19.6
23.7
40
Top cover above main transformer
19.4
20.3
40
Front panel (non-metallic)
9.2
11.1
60
Standby button (non-metallic)
2.2
2.2
50
Winding temperature rise
measurements
measurements
198V,
60Hz
242V,
60Hz
—
Ambient temperature t1 (
o
C) :
26.0
26.0
—
Ambient temperature t2 (
o
C) :
22.7
23.8
—
Temperature rise dT of winding:
R
1
(Ω)
R
2
(Ω)
dT (K)
Limit dT (K) Insulation
class
Main transf. primary winding (198V, 60Hz)
1.799 2.212 63.1 95
B
Sub transf. primary winding (198V, 60Hz)
4717 5172 28.4 85
E
Main transf. primary winding (242V, 60Hz)
1.799 2.280 71.9 95
B
Sub transf. primary winding (242V, 60Hz)
4717 5280 33.3 85
E
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Page 36 of 43 -
Report
No.
98389
7.2
TABLE: softening temperature of thermoplastics
N/A
Temperature T of part
T - normal con-
ditions (
o
C)
T - fault condi-
tions (
o
C)
T softening
(
o
C)
10.3
TABLE: insulation resistance measurements
P
Insulation resistance R between:
R (MΩ)
Required R (MΩ)
Between mains poles (primary fuse disconnected)
> 100
2
Between parts separated by double or reinforced insulation
> 100
4
10.3
TABLE: electric strength measurements
P
Test voltage applied between:
Test voltage (V)
Breakdown
Mains poles (primary fuse disconnected)
1500Vac No
Between parts separated by double or reinforced insulation
3000Vac No
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