Harman Kardon DVD 23 (serv.man12) EMC - CB Certificate ▷ View online
Report No. JSH05110331-001
Page 28 of 64
7.3 Test Protocol
The tested object operated under the operating condition specified in EN61000-3-
3:1995/+A1:2001
The following limits apply
-- “dc” shall not exceed 3.3%.
-- “dmax” shall not exceed 4/6/7%
-- d(t) shall not exceed 3.3% for more than 500ms.
-- “dmax” shall not exceed 4/6/7%
-- d(t) shall not exceed 3.3% for more than 500ms.
The appliance has rated input power less than 75W, and it has no means to
generate significant voltage flick and fluctuation, No test required.
7.4 Measurement Uncertainty
7.4 Measurement Uncertainty
Measurement uncertainty for voltage fluctuation and flicker is under consideration according to
CISPR 16-4:2002.
7.5 Additions, deviations and exclusions from standards
None
Report No. JSH05110331-001
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Immunity Test
Performance criteria
The performance criteria are based on the general criteria of the standard and derived from the product
specification
The performance criteria are based on the general criteria of the standard and derived from the product
specification
<or>
Criterion A: Continue to operate as intended during the test. No change of actual operating state, for
example change of channel is allowed as a result of the application of the test. Evaluation is carried out
for audio and video functions.
Evaluation of audio quality:
Unless otherwise specified in this standard, the criterion of compliance with the requirement is a
wanted to unwanted audio signal ratio of >=40dB at a wanted audio signal level of 50mW.
For AM sound receivers the criterion is >=26dB at 50mW.
The criterion for the audio part of TV receivers is >=40dB.
For AM and FM car radios, the criterion is >=26dB at 500mW.
Evaluation of picture quality
The criterion of compliance with the requirement is just perceptible degradation by observation of the
picture, the screen shall be observed under normal viewing conditions(brightness 15~20 Lux), at a
viewing distance of six times the height of the screen.
In the case of video tape equipment the test criteria relate to the picture, assessed on a test-TV-set,
which is connected to the video output terminal of the equipment.
Criterion B: Continue to operate as intended after the test .No degradation of performance or loss of
function. During the test degradation of performance is allowed, however no change of actual operating
state or stored date.
Criterion C: Temporary loss of function is allowed, provided the function is self-recoverable or can be
restored by the operation of the controls.
Basic EMC standard for immunity test
EN 61000-4-2: 1995/+A1:1998/+A2:2001: Electromagnetic Compatibility (EMC) – Part 4: testing and
measurement techniques – section 2: electrostatic discharge immunity test
EN 61000-4-3: 1996/+A1:1998/+A2:2001 : Electromagnetic Compatibility (EMC) – Part 4: testing and
measurement techniques – section 3: radiated, radio frequency, electromagnetic field immunity test
EN 61000-4-4: 1995/+A1,+A2:2001 : Electromagnetic Compatibility (EMC) – Part 4: testing and
measurement techniques – section 4: electric fast transient/burst immunity test
EN 61000-4-5: 1995/+A1: 2001: Electromagnetic Compatibility (EMC) – Part 4: testing and
measurement techniques – section 5: surge immunity test
EN 61000-4-6: 1996/+A1:2001: Electromagnetic Compatibility (EMC) – Part 4: testing and
measurement techniques – section 6: immunity to conducted disturbance, induced by radio frequency
field.
EN 61000-4-11: 1994/+A1:2001: Electromagnetic Compatibility (EMC) – Part 4: testing and
measurement techniques – section 11: voltage dips, short interruption and voltage variations immunity
test
example change of channel is allowed as a result of the application of the test. Evaluation is carried out
for audio and video functions.
Evaluation of audio quality:
Unless otherwise specified in this standard, the criterion of compliance with the requirement is a
wanted to unwanted audio signal ratio of >=40dB at a wanted audio signal level of 50mW.
For AM sound receivers the criterion is >=26dB at 50mW.
The criterion for the audio part of TV receivers is >=40dB.
For AM and FM car radios, the criterion is >=26dB at 500mW.
Evaluation of picture quality
The criterion of compliance with the requirement is just perceptible degradation by observation of the
picture, the screen shall be observed under normal viewing conditions(brightness 15~20 Lux), at a
viewing distance of six times the height of the screen.
In the case of video tape equipment the test criteria relate to the picture, assessed on a test-TV-set,
which is connected to the video output terminal of the equipment.
Criterion B: Continue to operate as intended after the test .No degradation of performance or loss of
function. During the test degradation of performance is allowed, however no change of actual operating
state or stored date.
Criterion C: Temporary loss of function is allowed, provided the function is self-recoverable or can be
restored by the operation of the controls.
Basic EMC standard for immunity test
EN 61000-4-2: 1995/+A1:1998/+A2:2001: Electromagnetic Compatibility (EMC) – Part 4: testing and
measurement techniques – section 2: electrostatic discharge immunity test
EN 61000-4-3: 1996/+A1:1998/+A2:2001 : Electromagnetic Compatibility (EMC) – Part 4: testing and
measurement techniques – section 3: radiated, radio frequency, electromagnetic field immunity test
EN 61000-4-4: 1995/+A1,+A2:2001 : Electromagnetic Compatibility (EMC) – Part 4: testing and
measurement techniques – section 4: electric fast transient/burst immunity test
EN 61000-4-5: 1995/+A1: 2001: Electromagnetic Compatibility (EMC) – Part 4: testing and
measurement techniques – section 5: surge immunity test
EN 61000-4-6: 1996/+A1:2001: Electromagnetic Compatibility (EMC) – Part 4: testing and
measurement techniques – section 6: immunity to conducted disturbance, induced by radio frequency
field.
EN 61000-4-11: 1994/+A1:2001: Electromagnetic Compatibility (EMC) – Part 4: testing and
measurement techniques – section 11: voltage dips, short interruption and voltage variations immunity
test
Measurement Uncertainty
According to CISPR 16-4: 2002, measurement uncertainty to immunity test is under consideration
Report No. JSH05110331-001
Page 30 of 64
8. Immunity requirements for the antenna input connector
8.1 Requirements for input immunity to RF voltages (in differential mode) of the
VHF band II part of sound receivers and of satellite sound receivers
VHF band II part of sound receivers and of satellite sound receivers
8.1.1 Test result
Pass Fail Not Applicable
8.1.2 Operating environment
Temperature:
°C
Relative Humidity: %
8.1.3 Test set-up
Sound receivers with a VHF band II part shall meet the sound criterion of subclause 6.1.1 of
the standard. They were be tested at a tuned frequency fn and subjected to an unwanted signal of
frequency ff and level fn as specified in Table 3 and 4 of the standard. Receivers with mono/stereo
facility was be tested in stereo mode.
frequency ff and level fn as specified in Table 3 and 4 of the standard. Receivers with mono/stereo
facility was be tested in stereo mode.
8.1.4 Test protocol
Pass
Recorded data for test of input immunity from unwanted signals outside the VHF band II range
Recorded data
Fn (MHz)
Ff(MHz)
mono Stereo
66.2*
76.9
87.1
87.2
87.1
87.2
87.25
87.30
87.35
87.40
87.45
87.6
87.50
129.3**
118.6
108.4
108.3
108.25
108.20
108.15
108.10
108.05
107.9
108.00
* only applicable for receivers with the local oscillator frequency below the tuned frequency.
Report No. JSH05110331-001
Page 31 of 64
** only applicable for receivers with the local oscillator frequency above the tuned frequency.
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