Confidential
Product Specification
(Built-in Earphone Case for Galaxy S4)
January. 29. 2014
Y-TECH
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Table of Contents
1. Introduction
2. Product Spec
3. User’s Manual
4. Color
5. Reliability Spec
1. Introduction
Patent [Earphone built-in portable terminal case]
- PCT No. : PCT/KR2013/006102
- Korea Patent No. : 10-1321008
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2. Product spec.
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2. Product spec.
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2. Product spec.
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2. Product spec.
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2. Product spec.
5) Appearance Drawing
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3. User’s Manual
Pull out the PLUG as shown below.
(Caution: Don't pull out with full strength,
as this may damage wires)
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Insert the PLUG fully into the jack
as shown below.
3. User’s Manual
Pull out the Right & Left EARPHONES as
shown below.
(Caution: Don't pull out further than the
maximum limit of 1M. This may damage
or break the wires)
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Place the Case and Earphones parallel to
each other before returning Earphones
into the Case as shown below.
After pushing the button and holding
the Earphone Head with hand, insert
Earphone slowly.
(Caution: Hold the Earphone Head when
inserting to avoid damage.
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4. Color
Product Colors
5. Reliability Specs
■ Earphone specs
1) Scope
This specification covers earphone model HC-EYD-YT001 BK
2) Product Essential
2-1) MODEL NAME HC-EYD-YT001 BK
2-2) RATED POWER 3mW (0.219V.RMS)
2-3) MAX INPUT POWER 20mW (0.56V. RMS)
2-4) EAR PHONE IMPEDANCE 16Ω±2.4Ωat 1KHz
2-5) WIRE LENGTH consult item 19-2
2-6) WEIGHT 7g±2g(contain wire)
3) Appearance
3-1) Outward shape
The outward shape and size was indicated.
3-2) Plug
Uses mini type 3 pole plug applied specifications
3-3) Display
Benchmark colors come from the provided design
4) Standard Experiment Environment
Test conditions limited to normal temp (5~35℃), normal humidity
(45~85%), normal air pressure (860~1060mbar). But if dissidence
needed, can test at temp (20±2℃), humidity (60~70%), air pressure
( (860~1060mbar).
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5. Reliability Specs
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5) Electric Specifications to Apply
5-1) Operations Test
No abnormal appearance in tone quality, volume or
operation while applying sine wave (20HZ~20,000HZ) equal to 3mW (0.219V) input.
5-2) Impedance
Impedance should be 16Ω±2.4Ω while adding 1000Hz sine
wave tension. If there are different conditions, convert to 20℃.
5-3) Max Input Power: 20mW (0.56V RMS) (vibration)
No abnormal appearance with 3mW input after applying white
noise and repeating 10 times “1 minute ON / 2 minutes OFF” using appointed filter.
5-4) Frequency Response Curve (Assy)
The change of frequency should be in the manageable range
while adding 1,000HZ (0.126V) sine wave to the earphone
*Below is our curve data for reference
5. Reliability Specs
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5-5) Sensitivity Test
Sensitivity should be in the range of 91±3dB while applying 1,000HZ, 1mW (0.126V)
sine waves
Please consult item “5-4” to confirm sensitivity
The Left/Right sensitivity difference should be 3dB or less (1kHz)
6) Machine Function
6-1) Twist Test
No abnormal appearance while winding around 90 degrees 30 times per minute
Plug part 5,000 Times 300g
E/P part 5,000 Times 150g
6-2) Pull Strength Test
6-2-1) The pull strength of cord should be upwards of 5Kg. (P2)
6-2-2) Plug mold part: No short or abnormal appearance while
adding 5Kg/minute load with stretching
6-2-3) Housing part: No short or abnormal appearance while
adding (P1, 1points) 3Kg/minute load with stretching
5. Reliability Specs
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6-3) Rubber Ring Cohesiveness Test
No falling off while adding 1 minute P = 300g load to the rubber ring (as in the drawing)
Must be controlled downward 0.3mm
6-4) Striking Test & Drop Test
★ No abnormal appearance while dropping, 10 times. (tone quality: 5 times)
(The cement is stood straight up in the ground, the jack cord is fixed on the cement).
5. Reliability Specs
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★ No abnormal appearance while dropping to the cement 10 times from height of 1,200mm
(tone quality : 5 times from height of 760mm)
★ Primary vibration test: no abnormalities are shown under the test condition 1V
★ No abnormalities are shown under the test condition 0.3V (vibration)
★ Cap crack, Cap secession, Dead sound error
7) High Temp Test
Cord is made of PS, ABS, AS Colophony.
Should be normal after exposure to 50℃ for 24 hours (500g load).
8) PUSH & PULL Test
Earphone plug should be undamaged when plugged and unplugged from socket 5000 times.
9) Condition Test
Resolve items 3-1), 5-1),5-4), 5-5) after executing the following item:
★The two parties can discuss further if there are problems with the test
5. Reliability Specs
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10) Continuous Load Test
Resolve item 5-1 after adding white noise load for 48 hours with 20mW (0.56V)
to the earphone using filter.
11) LOTION Test
Daub spf42pa in earphone surface.
The conditions are Temperature: 60±2℃, Humidity: 90%, Time: 6 hours.
Afterwards, place it in normal conditions for 1 hour.
Daub 50 times with weight of 500g, check to assure earphone is still functional
12) LARD Test
No abnormalities shall occur when earphone put in tallow for 72 hours
Afterwards, place it in natural conditions for 4 hours.
13) Vibration Test
Resolve items 3-1,5-1,5-4,5-5 after vibration test, as follows:
14) Insulation Impedance Test
Apply upwards of 5 MΩ while adding DC 250V for 1 minute to the surface
of hands-free earphone and its electric areas
15) High Voltage Test
Should be normal while adding DC 250V for one minute to the surface of
revealed hands free earphone and the electric areas.
5. Reliability Specs
■ Set spec
1) Normal Height Drop
1-1) Height : 1.0m (Granite floor)
1-2) 6 Faces, 1 Cycle
1-3) Earphones’ broken and performance issues require additional verification.
(Short height drop, Tension test)
2) Short Height Drop
2-1) Height : 10 Cm (Granite floor)
2-2) 1 Face 1, Bottom (only Earphone side) 100 times
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5. Reliability Specs
3) Earphones Pull & Push Button
3-1) Pull Earphones about 1.0m, then press the Button to return >>> 1 Cycle
3-2) 1 Cycle x 3000 times
Test Method
Earphone Cord
4) Earset, Tension Test
4-1) Pull the end of Earphones
4-2) Force : 2.0 kg, keep 5 seconds
Test Method
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5. Reliability Specs
5) Plug, Pull & Insert
5-1) Pull and Insert >>> 1 Cycle
5-2) 1 Cycle X 3000 times
Test Method
6) Plug, Tension test
6-1) Pull the end of the plug
6-2) Force: 2Kg, keep 5 seconds
Test Method
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