JBL SB 400 (serv.man4) EMC - CB Certificate ▷ View online
Page 29 of 62
Report No.: 085-120207501-000
IEC 60065
Clause
Requirement + Test
Result - Remark
Verdict
TRF No. IEC60065K Jiangsu TÜV Product Service Ltd. Guangzhou Branch
Switch surface (internal)
12.1
28.2
50
19.9
14.5
50
11.2
16.9
50
LF1 surface
15.4
12.7
85
CX1 surface
15.3
21.2
75
LF2 surface
17.1
10.1
85
VR1 surface
17.6
10.9
50
C1 surface
19.6
11.6
70
PCB surface (under Q1)
21.9
13.2
85
Primary heat sink surface
16.9
13.8
Ref.
CY1 surface
18.8
16.9
90
CY2 surface
24.0
23.9
90
IC3 surface
16.6
19.0
65
TR1 winding surface
29.0
20.0
75
TR1 winding surface
28.1
28.2
75
Core of TR1
31.0
33.8
Ref.
C13 surface
20.3
22.1
70
PCB surface (under D9)
31.8
34.2
85
PCB surface (under D8)
24.3
26.4
85
15.3
14.5
60
Enclosure surface (inside)
14.4
14.5
Ref.
Enclosure surface (outside,Top)
10.3
11.0
60
Enclosure surface (outside,Side)
1.1
0.7
60
Enclosure surface (outside,Rear)
6.3
6.5
60
Button surface
4.2
4.3
50
Switch surface (outside)
6.5
5.9
50
Subwoofer:
Inlet surface (internal)
3.5
4.5
35
Switch surface (internal)
10.0
10.3
50
9.6
9.3
50
6.6
6.3
50
MOV1 surface
19.3
14.3
50
CX1 surface
14.8
12.5
75
LF1 surface
16.3
13.2
85
LF2 surface
13.0
11.4
85
LF3 surface
15.8
14.2
85
CX2 surface
13.7
13.9
75
PCB surface (under D3)
20.4
20.2
85
C1 surface
13.8
13.3
70
CY1 surface
11.8
11.3
90
CY2 surface
22.7
25.3
90
PCB surface (under Q1)
21.5
25.3
85
Primary heat sink surface
15.8
19.3
Ref.
CY3 surface
13.6
15.3
90
IC2 surface
21.0
23.9
65
IC4 surface
15.0
16.1
65
IC6 surface
14.5
16.0
65
Page 30 of 62
Report No.: 085-120207501-000
IEC 60065
Clause
Requirement + Test
Result - Remark
Verdict
TRF No. IEC60065K Jiangsu TÜV Product Service Ltd. Guangzhou Branch
TR1 winding surface
14.6
16.7
75
TR1 winding surface
14.9
17.0
75
Core of TR1
13.7
15.4
Ref.
TR2 winding surface
30.8
34.6
75
TR2 winding surface
29.2
32.8
75
Core of TR2
25.7
28.8
Ref.
PCB surface (under DD2)
20.0
25.2
85
PCB surface (under D10)
17.1
19.9
85
C25 surface
14.8
17.8
70
C14 surface
11.6
13.3
70
LF4 winding surface
12.9
14.8
85
CT1 surface
15.4
18.5
85
Secondary heat sink surface
19.3
22.4
Ref.
7.3
7.6
50
PCB surface (under IC5)
26.2
25.9
85
Enclosure surface (inside)
4.9
5.5
Ref.
Enclosure surface (outside,Top)
3.3
4.1
60
Enclosure surface (outside,Side)
1.4
1.7
60
Enclosure surface (outside,Rear)
1.1
1.1
60
Switch surface (outside)
4.0
3.9
50
Winding temperature rise measurements
Ambient temperature t1 (
o
C) ....................... :
35
—
Ambient temperature t2 (
o
C) ....................... :
35
—
Temperature rise dT of winding:
dT = (R
dT = (R
2
– R
1
) x (234.5 + t1)
– (t2 – t1)
R
1
R
1
(Ω)
R
2
(Ω)
dT (K)
Limit max (K) Insulation class
--
--
--
--
--
--
Supplementary information:
1. Test with Hanwei power board.
2. Thermocouple method used.
3. Tma is 35°C Max., the above temp. rise limit are adjusted according to ambient temperature 35°C.
1. Test with Hanwei power board.
2. Thermocouple method used.
3. Tma is 35°C Max., the above temp. rise limit are adjusted according to ambient temperature 35°C.
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)
Min T softening
(
o
C)
--
--
--
--
10.3
TABLE: insulation resistance measurements
P
Insulation resistance R between:
R (MΩ)
Required R (MΩ)
For Center:
Different polarity of power supply
(fuse disconnection)
(fuse disconnection)
>100
2
Between parts separated by basic or supplementary
insulation
insulation
>100
2
Between parts separated by double or reinforced insulation
>100
4
Page 31 of 62
Report No.: 085-120207501-000
IEC 60065
Clause
Requirement + Test
Result - Remark
Verdict
TRF No. IEC60065K Jiangsu TÜV Product Service Ltd. Guangzhou Branch
For subwoofer:
Different polarity of power supply
(fuse disconnection)
(fuse disconnection)
>100
2
Between parts separated by basic or supplementary
insulation
insulation
>100
2
Between parts separated by double or reinforced insulation
>100
4
Supplementary information:
10.3
TABLE: electric strength measurements
P
Test voltage applied between:
Test voltage
(Vpeak)
Breakdown
For center:
Different polarity of power supply
(fuse disconnection)
(fuse disconnection)
2120
No
Between parts separated by basic or supplementary
insulation
insulation
2120
No
Between parts separated by double or reinforced insulation
4240
No
For subwoofer:
Different polarity of power supply
(fuse disconnection)
(fuse disconnection)
2120
No
Between parts separated by basic or supplementary
insulation
insulation
2120
No
Between parts separated by double or reinforced insulation
4240
No
Supplementary information: The transformer core is considered as primary circuit.
Page 32 of 62
Report No.: 085-120207501-000
IEC 60065
Clause
Requirement + Test
Result - Remark
Verdict
TRF No. IEC60065K Jiangsu TÜV Product Service Ltd. Guangzhou Branch
11.2
TABLE: summary of fault condition tests
P
Voltage (V) 0,9 or 1,1 times rated voltage .......... : 264
—
Frequency (Hz ...................................................... : 50
—
Ambient temperature (
o
C) ................................... : 20-25
—
No
Component
Fault
dT (K) / Component
Other results
(include description and test duration)
(include description and test duration)
With Hanwei power board:
1
100% max
non-clipped
output power
non-clipped
output power
--
For center:
LF1 surface: 28.7K
LF2 surface: 36.0K
TR1 winding : 90.0K
PCB surface (under
D9): 76.4K
D9): 76.4K
PCB surface (under
U501): 71.4K
U501): 71.4K
Enclosure surface
(outside,Top): 31.1K
(outside,Top): 31.1K
For subwoofer:
LF1 surface: 70.2K
LF2 surface: 60.7K
LF3 surface: 85.2K
TR1 winding : 48.1K
T2 winding : 101.3K
PCB surface (under
Q1): 105.9K
Q1): 105.9K
PCB surface (under
IC5): 64.2K
IC5): 64.2K
Enclosure surface
(outside,rear): 5.8K
(outside,rear): 5.8K
Input current: 0.675 A for center, 0.94 A for
subwoofer;
subwoofer;
No Hazard, the apparatus
operated until steady status.
duration: 6
hours, no hazard.
For center:
2
Block
ventilation
ventilation
--
--
Similar with normal operation, duration: 3
hours 23 minutes, no hazard.
hours 23 minutes, no hazard.
3
BK5.0V-Gnd S-C
--
The apparatus was protected, the input
current dropped to 0.03A, test duration: 10
minutes, no hazard.
current dropped to 0.03A, test duration: 10
minutes, no hazard.
4
+5.0V-Gnd
S-C
--
The apparatus was protected, the input
current dropped to 0.03A, test duration: 10
minutes, no hazard.
current dropped to 0.03A, test duration: 10
minutes, no hazard.
5
+18V-Gnd
S-C
--
The apparatus was protected, the input
current dropped to 0.03A, test duration: 10
minutes, no hazard.
current dropped to 0.03A, test duration: 10
minutes, no hazard.
6
D8
S-C
--
The apparatus was protected, the input
current dropped to 0.03A, test duration: 10
minutes, no hazard.
current dropped to 0.03A, test duration: 10
minutes, no hazard.
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