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Acer Acer –LCD-D240H
Service Manual
LCD Monitor Acer D240H
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1 Table of Contents Important Safety Notice .........................................................................................02 01 Product Specification ..........................................................................................03 02 Flat Panel Specification .......................................................................................15 03 Exploded Diagram ..............................................................................................36
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Acer Acer –LCD-D240H Important Safety Notice 1. Safety precautions This monitor is manufactured and tested on a ground principle that a user’s safety comes first. However, improper used or installation may cause damage to the monitor as well as to the user. Warning: This monitor should be operated only at the correct power sources indicated on the label on the rear of the monitor. If you’re unsure of the power
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Acer Acer –LCD-D240H 01 Product Specification 1. General: Acer is designed with LVDS interface and VGA/DVI-D/HDMI input, and Embedded DPF Function ,it featured with embedded universal AC power supplies and audio input. It’s a green product and meets all ROHS standard. The power button and display control buttons are on the front of the monitor. The monitors shall automatically to display lower resolution video mod
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Acer Acer –LCD-D240H USB: USB2.0 (optional function) Webcam: 1.0M resolution(1280 x 800), standard USB2.0 interface, array microphone (optional function) 2. Operation Specifications The unit should suffer no visible cosmetic damage and should operate with no degradation in display quality during exposure to the operating conditions and after exposure to the non-operating conditions, in any sequence. 2.1 Envir
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Acer Acer –LCD-D240H Item Condition Spec Contact discharge: 4KV Electrostatic Contact discharge: 8KV ● IEC61000-4-2(EN55024) Discharge Air discharge : 8KV Air discharge : 15KV ● Reliability Items Condition Spec Note =25 > ,000 Hours MTBF Luminance CCFL Life time 0,000 Hours( ) Note1 becomes 50% Note1. Display an all WHITE field at mid Brightness and Contrast settings. 3. Electrical and O
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Acer Acer –LCD-D240H DC output loading Vcc5V/1.8A, capability Vcc25V/1.4A Audio 5V: 1.5A USB 5V: 1.5A Rise Time <50mS Dynamic load change Hold-up time AC input: 100V~240V >10mS Overshoot <10% Turn on delay time 2S Power management See Table-1 Note3: Paralleled a 0.1uF ceramic Cap. And 47uF aluminum Cap. Between the end of DC loading side, Measured band-width=20MHz. Ripple voltage of +25V
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Acer Acer –LCD-D240H CCFL startup voltage 2000 Vrms (0˚C) CCFL startup voltage 1850 Vrms (25˚C) Operating frequency 40~60 KHz Protect delay time > 1 second Efficiency ≥75% Note: Other panels please refer to the reference panel specs. Brightness output The test to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted. Temperature : 25 ± 5°
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Acer Acer –LCD-D240H Min. luminance of nine points (backlight) 75% Max. luminance of nine points (backlight) 4. Input / Output Signal Specifications 4.1 AC in 4.1.1 AC Input Voltage: 100~240VAC 4.1.2 AC Input Current: 1.2A @100Vac, 0.6A @240Vac 4.1.3 AC Frequency Range: 50~60Hz 4.2 Audio in 4.2.1 Input impedance 10K ohm 4.2.2 Frequency response range 200Hz ~ 10kHz 4.3 USB in (Option) The USB 2.0 inc
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Acer Acer –LCD-D240H 4.5 DVI-D in DVI-D Connector Pin assignment: Pin Symbol Pin Symbol 1 TMDS Data 2- 16 Hot Plug Detect 2 TMDS Data 2+ 17 TMDS Data 0- 3 TMDS Data 2/4 shield 18 TMDS Data 0+ 4 19 TMDS Data 0/5 shield 5 20 6 DDC Clock 21 7 DDC Data 22 Clock shield 8 Analog Vertical Sync 23 Clock + 9 TMDS Data 1- 24 Clock - 10 TMDS Data 1+ 11 TMDS Data 1/3 shield 12 13 14 +5V Power 15
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Acer Acer –LCD-D240H 15 DDC SCL 4.6.2 Signal SPEC: Items Condition Specification Analog RGB signal Input impedance =75 Ohm 0.7Vp-p Sync Input impedance 1k Ohm TTL level, Separate H/V-sync(+/-) H-Sync Frequency 31K~8 KHz V-Sync Frequency 49~76Hz 4.7 Timing table VESA MODES Horizontal Vertical Mode Nominal Nominal Nominal Pixel Frequency Frequency Sync Resolution +/-0.5KHz Sync Polarity +/-1Hz P
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Acer Acer –LCD-D240H SVGA 832*624@75Hz 49.725 N 74.55 N 57.283 XGA 1152*870@75Hz 68.681 N 75.062 N 100 Other MODES WXGA 1280*800@60Hz 49.702 N 59.81 P 83.5 Note: 1. Non-interlace signals only (An interlace signal cannot be display) 2. Please refer to F/W specification for more detail 3. Each frequency of Power Macintosh and Sun Ultra is a reference value
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Acer Acer –LCD-D240H 4.8 HDMI timing table For DVD Player Input, Attached timing is supported : Ratio Mode Resolution Pixel Clock MHz H sync KHz V sync Hz VGA 640 x 480p 25.2 31.5 60 4:3 NTSC (480i) 720 x 480 13.50 15.73 60 4:3 NTSC (480p) 720 x 480 27.00 31.47 60 4:3 PAL (576i) 720 x 576 13.50 15.63 50 4:3 PAL (576p) 720 x 576 27.00 31.27 50 16:9/4:3 720p 1280 x 720 74.25 37.5 50 16:9 720p 1280 x 720 .25 :9
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Acer Acer –LCD-D240H .10.2 DVI EDID table 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 00 FF FF FF FF FF FF 00 04 72 74 00 00 00 00 00 1 00 00 01 03 80 35 1D 78 EA 60 85 A6 56 4A 9C 25 2 12 50 54 AF CF 00 81 80 71 4F 95 00 95 0F A9 40 3 B3 00 01 01 01 01 1A 36 80 A0 70 38 1F 40 30 20 4 35 00 13 2A 21 00 00 1A 00 00 00 FC 00 44 32 34 5 30 48 0A 20 20 20 20 20 20 20 00 00 00 FD 00 38 6 4C 1F 53 12 00 0A 20 20 20 20 20 2
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Acer Acer –LCD-D240H 1) Nand play photo function: 1. without any memory card, the screen will display slideshow photo from Nand storage, 2. If no photo files in Nand storage,the screen will display browser mode. 2) card reader function Connect the USB upstream and the card read function will be started when D240H on Monitor mode..PC will find the two USB devices are CF card and
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Acer Acer –LCD-D240H 4.11.4. DPF function test 4.11.4.1. DPF Monitor keypad control flow 1. Switch to DPF keypad flow 2. DPF play photo mode keypad flow
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Acer Acer –LCD-D240H 3. DPF select photo mode flow 4. DPF setting menu flow
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Acer Acer –LCD-D240H
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Acer Acer –LCD-D240H Setting menu layer-1
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Acer Acer –LCD-D240H Setting menu layer-2 Setting menu layer-3
