CINEMA SOUND 5 - JBL Audio EMC - CB Certificate (repair manual). Page 71

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                                                                            Page 69 of 70                   Report No. JSH006110065-002 
IEC 60825-1 
Clause 
Requirement – Test 
Result - Remark 
Verdict 
Appendix no. 2 
TRF No:  IEC/EN 60065H 
 
     TRF originator Intertek ETL SEMKO SH 
 
 
 
Type designation ................................................ : Laserstar 
― 
 
Others ................................................................ : -- 
― 
 
 
LEDs 
Pass 
 
Manufacturer....................................................... : CD: ROHM Co., Ltd. 
DVD:  NEC Compound 
Semiconductor Devices Inc. 
― 
 
Type designation ................................................ : CD: RLD78MRA1 
DVD: NV6A01FT 
― 
 
Wavelength ........................................................ : 790±15 nm (CD) 
650±10 nm (DVD) 
― 
 
Others ................................................................ :  
― 
Details of measurement procedure and measurement results: 
 
Step 
 
specified / measured / calculated
 
unit
 
Classification, Laser Class 
Class I for CD 
Class IM for DVD 
----- 
Typical wavelength of laser diode 
λ
 = 789 (CD) 
λ
 = 656 (DVD) 
nm  
nm 
Emission duration 
t = ∞ 
Time basis 
T = 100 
s  
Size of apparent source  
-- 
mm 
Angular subtense 
 <1.5  
mrad 
Limiting angular subtense 
α
min 
= 1.5;  
α
max 
= 100 
mrad  
mrad 
Angle of acceptance 
γ
= N/A 
mrad 
Diameter of aperture stop 
d = 7 (for Class 1) 
mm 
Distance of aperture stop to source 
r = 14 (for Class 1) 
mm 
 
 
 
Calculation of AEL 
(Class as above) : 
(Radiant Power 
[
W]
 
Used formula 
(CD)Class I: 3.9 x 10
-4
 C
4
C
7
 
(DVD)Class I: 3.9 x 10
-4
 
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