Harman Kardon DVD 27 (serv.man15) EMC - CB Certificate ▷ View online
- Page 3 of 6 -
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Report No. 65335
11
FAULT CONDITIONS TESTS-continued
P
Comp.
No.
No.
Fault Test
V Point Test
time
Fuse No Current
through
fuse
fuse
Temperature/Results
D920
S-c
254,4
A - C
1 hr
10 min
10 min
F901
0,09 A
DVD player stopped immediately.
Input current stabilised at 0,09A.
T901 coil heated up to 41,6K and
stabilised.
No component damaged.
No hazard.
Input current stabilised at 0,09A.
T901 coil heated up to 41,6K and
stabilised.
No component damaged.
No hazard.
C920
S-c
254,4
-
25 min
F901
0,03 A
Unit shut down immediately.
Input current stabilised at 0,03A.
No component damaged.
No hazard.
Input current stabilised at 0,03A.
No component damaged.
No hazard.
PC91
S-c
254,4
Pin (1-2) 20 min
F901
0,02 A
Unit shut down immediately.
Input current stabilised at 0,02A.
No component damaged.
No hazard.
Input current stabilised at 0,02A.
No component damaged.
No hazard.
D904
S-c
254,4
A - C
1 sec
F901
-
F901 opened immediately.
D903 damaged.
No hazard.
D903 damaged.
No hazard.
D904
S-c
207
A - C
1 sec
F901
-
F901 opened immediately.
D903 damaged.
No hazard.
D903 damaged.
No hazard.
C903
S-c
254,4
-
1 sec
F901
-
F901 opened immediately.
D903 and D902 damaged.
No hazard.
D903 and D902 damaged.
No hazard.
C903
S-c
207
-
1 sec
F901
-
F901 opened immediately.
D903 and D902 damaged.
No hazard.
D903 and D902 damaged.
No hazard.
Q901
S-c
254,4
Pin (1-2) 1 sec
F901
-
F901 opened immediately.
Q901 and IC91 damaged.
R908 opened.
No hazard.
Q901 and IC91 damaged.
R908 opened.
No hazard.
Q901
S-c
254,4
Pin (2-3) 1 sec
F901
-
F901 opened immediately.
Q901 and IC91 damaged.
R908 opened.
No hazard.
Q901 and IC91 damaged.
R908 opened.
No hazard.
IC91
S-c
254,4
Pin (1-7) 20 min
F901
0,02 A
Unit shut down immediately.
Input current stabilised at 0,02A.
No component damaged.
No hazard.
Input current stabilised at 0,02A.
No component damaged.
No hazard.
F No = Fault Number, S-c = Short-circuit, Dis = Disconnection
- Page 4 of 6 -
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Report No. 65335
11
FAULT CONDITIONS TESTS-continued
P
Comp.
No.
No.
Fault Test
V Point Test
time
Fuse No Current
through
fuse
fuse
Temperature/Results
IC91
S-c
254,4
Pin (1-4) 10 min
F901
0,02 A
Unit shut down immediately.
Input current stabilised at 0,02A.
No component damaged.
No hazard.
Input current stabilised at 0,02A.
No component damaged.
No hazard.
PC91
S-c
254,4
Pin (3-4) 10 min
F901
0,02 A
Unit shut down immediately.
Input current stabilised at 0,02A.
No component damaged.
No hazard.
Input current stabilised at 0,02A.
No component damaged.
No hazard.
F No = Fault Number, S-c = Short-circuit, Dis = Disconnection
- Page 5 of 6 -
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Report No. 65335
13.3 - 13.4
Clearances and Creepage distances
P
Type of
Insulation
Position/
Location
Location
Position/
Location
Location
Working
Voltage
Clearance
13.3.2
Creepage dist.
13.4
Comm.
1 2
Up
Urms
Req.
Measu.
Req.
Measu.
Basic Live Neutral 326V
230V
2,0mm
3,6mm
2,5mm
3,6mm
1), 2)
Reinforce C903
Chassis
326V 230V 4,0mm 5,6mm 5,0mm >5,6mm 3)
Reinforce C904
Chassis
480V 300V 4,2mm 6,8mm 6,4mm 6,8mm 4)
Reinforce C904
Chassis
480V 300V 4,2mm 6,9mm 6,4mm >6,9mm 5)
Reinforce C933
C933
326V 230V 4,0mm 6,5mm 5,0mm 6,5mm 1)
Reinforce C930
C930
336V 195V 4,0mm 7,4mm 5,0mm 7,4mm 1)
Reinforce PC91, pin 1 PC91, pin 2 328V 199V 4,0mm 7,8mm 5,0mm 7,8mm 1)
Reinforce T901, Pin. 3 T901,Pin. 13 540V *) 271V *) 4,4mm
7,0mm
5,6mm
7,0mm
1), 6)
Note: U in Volt, Clearances/Creepage Distances in mm, Comm. = Comment
*) Measured highest working voltage for transformer, T901
Comments:
1) Measured on PCB.
2) Before mains fuse (F901).
3) Measured from C903 metal can (primary) body to metal chassis (top cover).
4) Measured from C904 primary pcb trace to near matal chassis (back cover).
5) Measured from C904 body (2N force applied) to near matal chassis (back cover).
6) Measured from T901 primary pin connected trace to secondary pin connected trace.
2) Before mains fuse (F901).
3) Measured from C903 metal can (primary) body to metal chassis (top cover).
4) Measured from C904 primary pcb trace to near matal chassis (back cover).
5) Measured from C904 body (2N force applied) to near matal chassis (back cover).
6) Measured from T901 primary pin connected trace to secondary pin connected trace.
- Page 6 of 6 -
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Report No. 65335
14.3.3
Transformer/motor, constructional requirements
P
Transformer Insulation
Insulation
Res.
Test Volt
Clearances / Creepage distances
Part No.
Between
M Ohms
kV (60 sec.)
Measured
Required
T901
/ CLT9Z021ZE,
or
CLT9Z018ZE
Pri. - Sec.
> 100
3KV (rms)
6,0 / 6,0 mm
4,4 / 5,6 mm
- Min. 3,0 mm barrier tape or spacing provided in primary side of the transformer.
- Min. 6,0 mm barrier tape or spacing provided in secondary side of the transformer.
- Min. 6,0 mm barrier tape or spacing provided in secondary side of the transformer.
All of exposed primary winding wires, and outer pins (7, 15) connected exposed secondary winding
wires are covered fully by the 0,25mm min. thick. Teflon tubing (PTFE).
wires are covered fully by the 0,25mm min. thick. Teflon tubing (PTFE).
-
Components / construction
(T901)
Concentric windings on one bobbin. At least 3 layers of ins
ulation between primary and secondary winding.
Thickness of each layer: 0.025 mm. Test voltage: 3kV
ulation between primary and secondary winding.
Thickness of each layer: 0.025 mm. Test voltage: 3kV
Max. Working voltage: 540Vpeak / 271Vrms
P
Transformer Insulation
Thick
(mm) Material
Dielectric strength test
Part No.
Between
X Number
60 sec.
T901
/ CLT9Z021ZE,
or
CLT9Z018ZE
Pr. - Sec.
0,025 mm x 3
Polyester tape
2 layers tested - Pass *)
Pr. - ic
0,50 mm min. x 1
Phenolic bobbin
1 layer tested - Pass *)
Pr. / Sec.
0,25 mm min. x 1
Teflon tube (PTFE)
1 layer tested - Pass *)
*) Test voltage: 3000 Vrms
17.1
Torque test to Table 20:
P
Screw
Diameter
With
Without
Material
Torque test (Nm)
Location / function
(mm)
Head
Head
Screw
Nut
Fulfilled / Remarks
Fixing of top cover
3
x
Metal
Metal
0,5Nm, 5 times / Pass
