ON STAGE 200ID - JBL Audio EMC - CB Certificate (repair manual). Page 60

 

 

- Page 59 of 63 - 

 

 

 Report 

No. 

98323 

 
 

IEC 60950-1:2005 / EN 60950-1:2006 

Clause 

Requirement + Test 

Result - Remark 

Verdict

 

 

TRF No. IECEN60950_1C 

 

 

 

4.5 

TABLE: Thermal requirements 

P 

 

Supply voltage (V)  .....................

90V / 50Hz 

264V / 60Hz 

⎯ 

Maximum measured temperature T of 
part/at:: 

T (

°C) 

Allowed 

T

max

 (

°C)

Supplied 1KHz sine wave for speakers in computer speaker system and obtain 1/8 Maximum non-clipped 
output power, & charging Ipod (500mA 5V) 

Adaptor enclosure 

45.1 

48.5 

80.3 

Plug part of adaptor enclosure 

32.5 

32.7 

80.3 

PCB under IC U5 

79.4 

86.2 

90.3 

L2 81.4 

88.7 

115.3 

PCB near Q5 

70.5 

74.6 

90.3 

C13 69.6 

74.9 

90.3 

External enclosure of speaker 

57.6 

62.1 

80.3 

External enclosure near Ipod socket 

40 

40.8 

80.3 

External enclosure near on/off switch 

41.3 

43.5 

80.3 

Ambient 25.5 

25.3 

-- 

Having a specified maximum ambient temperature of 40°C, the maximum temperatures are calculated 
based upon a (minimum) test temperature of 25.3°C. Temp. limits are adjusted according to Cl. 1.4.12.3. 
Temperature limits include less 10K for thermocouple measurement method. 

Temperature T of winding: 

t

1

 (°C)

R

1

 (

Ω)

t

2

 (°C)

R

2

 (

Ω)

T (

°C) 

Allowed 

T

max

 (

°C)

Insulatio

n class

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

supplementary information: