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  Acer Peripherals, Inc.                                                                                                 Release Notice
 Y Product System (PS)

 Subject:             Engineering Specification                                                Part No.:                  91.71602.132                                 Rev.:   0

                                                                                               Doc. No.                   201-C06
 Project Code:        91.71602.001                                                                                                                                     Page    1   of   22

 Model Name:          7254E             (DELL E550mmw)

0. Introduction ..................................................................................................................................... 3
1. Electrical Characteristics ................................................................................................................. 3
            1.1      Power Supply ....................................................................................................................... 3
            1.2 Signal Interface.................................................................................................................... 3
            1.3      Scan Range ........................................................................................................................... 3
            1.4 Video Performance............................................................................................................. 4
            1.5      Timings ................................................................................................................................. 4
            1.6 Audio Performance ............................................................................................................ 4

2. Environment & Reliability ..................................................................................................... 5

3. CRT Characteristics ................................................................................................................... 6

4. Front of Screen ................................................................................................................................ 6
            4.1 Geometry............................................................................................................................... 6
            4.2      Sharpness Crispness........................................................................................................... 7
            4.3      Light Quality ........................................................................................................................ 7
            4.4      Image Stability..................................................................................................................... 7

5. User Controls ................................................................................................................................... 8
            5.1      Basic ....................................................................................................................................... 8
            5.2 Advanced .............................................................................................................................. 8

6. Mechanical Characteristics ................................................................................................... 9
            6.1      Dimension ............................................................................................................................. 9
            6.2      Weight.................................................................................................................................... 9
            6.3      Plastic ..................................................................................................................................... 9
            6.4      Carton..................................................................................................................................... 9

7. Pallet & shipment .......................................................................................................................... 10
            7.1      Dimension ............................................................................................................................. 10
            7.2      Shipping Container ........................................................................................................... 10
            7.3      Air Transportation Container .......................................................................................... 11

)RUP 1R &                                                            API's Confidence and Property
  Acer Peripherals, Inc.                                                                                                  Release Notice
 Y Product System (PS)

 Subject:             Engineering Specification                                                Part No.:                   91.71602.132                                Rev.:   0

                                                                                               Doc. No.                    201-C06
 Project Code:        91.71602.001                                                                                                                                     Page    2   of   22

 Model Name:          7254E            (DELL E550mmw)



8. Certification ...................................................................................................................................... 11

9. Appendix Table                       ............................................................................................................................. 13

            Table 1 - DDC Table .................................................................................................................... 13
            Table 2 - CRT Blemish & Scratch Spec ................................................................................. 17
            Table 3 - Geometry Fig. .............................................................................................................. 18
                         Fig.1 Linearity Measurements.................................................................................. 18
                         Fig.2 General Pincushion Measurements ............................................................. 19
                         Fig.3 Trapezoid Measurements ............................................................................... 20
                         Fig.4 Picture Distortion & Phase Measurements................................................ 21

            Table 4 - Audio Performance. ................................................................................................... 22




)RUP 1R &                                                           API's Confidence and Property
 Acer Peripherals, Inc.                                                               Release Notice
Y Product System (PS)

Subject:           Engineering Specification                    Part No.:              91.71602.132                Rev.:   0

                                                                Doc. No.               201-C06
Project Code:      91.71602.001                                                                                    Page    3   of   22

Model Name:        7254E    (DELL E550mmw)

0. Introduction :
    The subject model is designed for a value line 15" color monitor. It has the following figures :
         0.28mm dot pitch CRT, 65MHz video bandwidth ,1024x768 max resolution.
         Low radiation MPRII standard,
         ISO 14000 certificate green design. (Refer Table 4)
         Optional items : Audio
1. Electrical Characteristics
1.1 POWER SUPPLY                         Condition                               Spec                OK N.A          Remark
Voltage                            Universal input full range        90~264VAC /47~63Hz              
Input Current                            90 ~ 264VAC                            2.0 Arms             
Power consumption                             On                    < 75 W max(w/o Audio)                     LED : Green
                                                                    < 90 W max(with Audio)
Input Voltage Transients                                        280 volts for 10 seconds @40     :   
DPMS                                        Standby                     < 60 W(w/o Audio)                     LED : Green
                                           Suspend                      < 5 W(w/o Audio)                      LED : Amber Blink
                                              Off                       < 5 W(w/o Audio)                      LED : Amber Blink
Inrush Current                          220 VAC/50Hz                          40 Amp peak                     cold-start
Leakage Current                         264 VAC/50Hz                            < 3.5mA              
Hi-Pot                            1.1500VAC, 1 sec                            w/o damage                      (in-line test)
                                  2. Ground test : 30A, 1sec                   < 0.1 ohm                      (in-lab test)

Power cord                             Length : 1800 mm                     Color : Flint Gray                KC-003
1.2 SIGNAL INTERFACE                     Condition                               Spec                OK N.A          Remark
Pin assignment                                                                5V on Pin 9            
Video input                           Level / Impedance                     700mV / 75 Ohm           
Sync input                                   Level                   TTL-Positive/Negative           
                                          Impedance                 50 Ohm on H-sync cable           
Signal Cable                                D-Sub                       1800mm +/- 20mm              
                                             BNC                                                         
                                             Color                             Flint Gray            
1.3 SCAN RANGE                                                                   Spec                OK N.A          Remark
Horizontal                                                                    30 ~ 54 KHz            
Vertical                                                                       50~ 120 Hz            


)RUP 1R &                                     API's Confidence and Property
 Acer Peripherals, Inc.                                                                Release Notice
Y Product System (PS)

Subject:           Engineering Specification                    Part No.:              91.71602.132           Rev.:   0

                                                                Doc. No.               201-C06
Project Code:      91.71602.001                                                                               Page    4   of   22

Model Name:        7254E    (DELL E550mmw)




1.4 VIDEO PERFORMANCE                   Condition                              Spec             OK N.A        Remark
Dot Rate                                                                      65 MHz            
Max. Resolution                                                              1024 x 768         
Rise time/Fall time                                                            10 ns            
Video Ringing                                                                 15% max           
Sag                                                                           5% max            
DDC Version                                                                  DDC1/2B            
EDID                                                                        Ver 1 ,Rev 2                     see Table 1


1.5 TIMINGS                       Preset mode No. :     8      User mode No. :          12
                 Preset                 Resolution                  Fh (KHz) / Fv (Hz)          OK N.A        Remark
                VGA400                    640x400                       31.47KHz/70Hz                    Timing113
                VGA480                    640x480                     31.47KHz/59.94Hz                   Timing114
                VESA480                   640x480                     37.86KHz/72.81Hz                
                 6448A                    640X480                           37.5KHz/75Hz                 Timing303
                 6448B                    640X480                      43.269KHz/85Hz                    Timing224
                 SVGA2                    800x600                     37.88KHz/60.32Hz                   Timing118
                 SVGA3                    800x600                     48.09KHz/72.12Hz                
                 SVGA4                    800x600                       46.88KHz/75Hz                    Timing305
                 SVGA5                    800x600                       53.67KHz/85Hz                    Timing225
                Apple 16"                 832x624                    49.71KHz/74.533Hz                
                UVGA1                    1024x768                       48.36KHz/60Hz                    Timing120
                UVGA7                    1024x768                   60.023KHz/75.029Hz                
           Super MAC 19                  1024x768                       60.24KHz/75Hz                 
                UVGA8                    1024x768                       68.68KHz/85Hz                 
                  WS2                    1280x1024                  64.317KHz/60.392Hz                
                  WS8                    1280x1024                      91.15KHz/85Hz                 
1.6 Audio Performance                                                                                  option; see table 5




)RUP 1R &                                     API's Confidence and Property
 Acer Peripherals, Inc.                                                                      Release Notice
Y Product System (PS)

Subject:           Engineering Specification                        Part No.:                91.71602.132                Rev.:   0

                                                                    Doc. No.                 201-C06
Project Code:      91.71602.001                                                                                          Page    5    of   22

Model Name:        7254E    (DELL E550mmw)


2.Environment & Reliability
                                           Condition                                 Spec                  O   N.A       Remark
                                                                                                           K

Operation Temp./Humidity                                            +5 ~ +40:/ 10~80% R.H.                            Non-condensing
Non- Operation Temp./Humi.                    storage                0~ +60:/ 5~90% R.H.                              Non-condensing
                                             shipping               -40~ +60:/ 5~95% R.H.
Altitude                               Operating condition                 0~3048m (10,000ft)                         Without packing
                                    Non-operating condition               0~12,192m (40,000ft)                         With packing
Vibration
           1)Sine Wave Vibration    Package, Non-Operating                      5 ~ 26.6Hz /0.6g           
                                                                           26.6 ~ 50Hz /0.016"
                                                                                50~500Hz/ 2.0g
                                                                     (104 Minutes/Axis for x, y, z)
           2)Random Vibration       Package, Non-Operating          5 ~ 100Hz, 0 dB/Oct.                   
                                                                    0.015g2/Hz
                                                                    100 ~ 200Hz, -6 dB/Oct., -----
                                                                    200Hz,        ------ ,   0.0038g2/Hz
                                       Non-package, Non-               20Hz~2000/ 0.0185g2/Hz              
                                            Operating
Drop (With packing)                 Package, Non-Operating              14.5kg - 76cm Height               
                                                                       1 corner, 3 edges, 6 faces.
Electrostatic Discharge               IEC801-2 standard               Contact:8KV, Air:15KV                          0.5~8KV tip table no

                                                                                                                           blanking

Acoustical Noise                                                                   < 40 dB/A               
Power Line Transient                IEC801-4,IEC1000-4-4              Coupling clamp 0 ~ 4KV               
                                     IEC1000-4-5 (Surge)             Common:2KV,Differential:1KV           
                                   IEC1000-4-12 (100KHz ringwave)    Common:3KV,Differential:1KV               
MTBF Demonstration                    90% confidence level                       > 60,000 Hrs                        Excluding the CRT
MTBF Prediction                            MIL-217F                              > 80,000 Hrs                        Excluding the CRT
CRT Life                                78% degradation                          > 10000 Hrs               




)RUP 1R &                                       API's Confidence and Property
 Acer Peripherals, Inc.                                                               Release Notice
Y Product System (PS)

Subject:           Engineering Specification                    Part No.:             91.71602.132                Rev.:       0

                                                                Doc. No.              201-C06
Project Code:      91.71602.001                                                                                   Page    6       of   22

Model Name:        7254E    (DELL E550mmw)


3.CRT Characteristics
                                                                               Spec                OK N.A         Remark
CRT Vender                                                                   PHILIPS               
Technology                                                                     FST                 
Coating                                                                       ASAG                 
Dot pitch                                                                     0.28mm               
Phosphor                                                                        P22                
Light transmittance                                                            57%                 
Viewable size                                                                 13.86"               
Deflection angle                                                              90 deg               
Blemishes and scratches                                        1 trio missing ,as approval sheet            see table 2
4.Front of Screen
4.1 GEOMETRY                            Condition                              Spec                OK N.A         Remark
Magnetic Environment               Northern Hemisphere                      H = 0 + 0.05           
                                                                      V = +0.45 + 0.05
                                   Southern Hemisphere                      H = 0 + 0.05           
                                                                       V = -0.45 + 0.05
                                         Equatorial                         H = 0 + 0.05           
                                                                            V = 0 + 0.05
Size                                        Hor.                            270 + 4 mm             
                                            Ver.                            202 + 4 mm             
Centering                               Hor. & Ver.                  |A-B|,|C-D|< 4 mm                      See table 3
Geometric Distortion              Line straightness to bezel    < 2.0 mm to the bezel all sides             See table 4 for TCO99
                                  Short segments < 100mm                      < 1 mm                                      "
                                  Long segment 100-200mm 1% of Line segment length                 
                                   Hor./Ver. Trapezoid                        < 2 mm               
                                            Tilt                            < 0.5 degree           
                                        Orthogonal                           < 1.5 mm              
Linearity                               Hor. & Ver.                           < 10 %                        (Xmax-Xmin)/Xmean*100
                                                                                                             Xmean=(Xmax+Xmin)/2




)RUP 1R &                                     API's Confidence and Property
 Acer Peripherals, Inc.                                                                       Release Notice
Y Product System (PS)

Subject:           Engineering Specification                         Part No.:                   91.71602.132            Rev.:       0

                                                                     Doc. No.                    201-C06
Project Code:      91.71602.001                                                                                          Page    7       of   22

Model Name:        7254E    (DELL E550mmw)



4.2SHARPNESS CRISPNESS                    Condition                                    Spec               OK N.A          Remark
Focus                                 Reverse character(white             "e, m" at cut-off and                     The distance of watch is

                                  background and black characters)        800 x 600 resolution                      30cm from eyes to screen

Mis-convergence                                                        A < 0.3mm , B< 0.35mm              
Moire                                     Over 18Ft-L                            no visible moire         
Swing                                                                             not permitted                                  "
Jitter                                  DIN 66234 T2                                  < 0.1mm                                    "
4.3 LIGHT QUALITY                         Condition                                    Spec               OK N.A          Remark
White Balance                          Full white center                   x = 0.281 + 0.015                       @ VGA480 640x480
                                  (Brit. cut-off & Cont. max.)             y = 0.311 + 0.015                          31KHz/60Hz
Purity W,R,G,B                    X max-X min & Y max-Y min                           < 0.015                                    "
Color Tracking                         Brightness cut off              x, y (nominal) + 0.025                                    "
Min Luminance, Full scan               Full white pattern                        >29Ft-L min.                                    "
Min Luminance, 20% till                     3" Block                             >40Ft-L min.                                    "
Brightness Uniformity                  Full white pattern            > 75% (center to any point)                                 "
Raster light O/P                     Bright./Cont. Max.                          0.5 ~ 1.5Ft-L                                   "
Contrast ratio                             Max/Min                                      5:1                                      "
4.4 IMAGE STABILITY                       Condition                                    Spec               OK N.A          Remark
H/V regulation                            Short Term                                  <0.5mm              
                                          Long Term                               <   



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