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Acer Acer –LCD-B243HL Service Manual LCD Monitor Acer B243HL - 0 -
1 Table of Contents Important Safety Notice ........................................................................................02 01 Product Specification ..........................................................................................03 02 Flat Panel Specification ......................................................................................21 03 Exploded Diagram ..............................................................................................47 0
Acer Acer –LCD-B243HL 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
Acer Acer –LCD-B243HL 01 Product Specification 1. General: Acer B243HL is designed with LVDS interface and VGA/DVI-D input, 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 modes into 1920x1080 full s
Acer Acer –LCD-B243HL USB cable(option) : 1.8m.(4pin, black cable with white connector) Audio cable(option) : 1.8m.( green cable with white connector) 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 Environmental
Acer Acer –LCD-B243HL 2.2 Safety, EMC, Ergonomics and Compatibility Requirements Items Description UL/c CB TUV/G CCC Other Safety ● ● ● ● FCC CE CCC VCCI-B EMC ● ● ● ● TCOTCO03 Ergonomics ● ● Windows Windows 2000 Windows Windows Compatibility ● ● ● ● Power Energy Star ● Management 2.3 Electrostatic Discharge Requirements Item Condition Spec Contact discharge: 4KV Electr
Acer Acer –LCD-B243HL 3. Electrical and Optical Characteristics and Performance 3.1 Main Power Supply 3.1.1 Input characteristics Items Condition Spec Note AC Input Voltage range Universal input full range 90~264Vac AC Input Voltage rating Universal input full range 100~240Vac AC input frequency range 90~264Vac 47~63Hz AC input frequency rating 100~240Vac 50~60Hz AC Input Current 100Vac 1.5A(max) 240Vac 0.
Acer Acer –LCD-B243HL Protection Condition Spec OPP(Over current protection) nominal AC input 60W ( min ) SCP(short circuit protection) with auto-recovery function OVP(Over voltage protection) Auto recovery Resumo do conteúdo contido na página número 9 Acer Acer –LCD-B243HL 3.3 Brightness output The test to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted. Temperature : 25 ± 5°C Test pattern : white Video Resolution : 1920 x 1080 Video input level : 700 mV ± 2% Warm-up time : 30 minutes Set brightness control and also contrast control at maximum, to measure the screen center, the light Resumo do conteúdo contido na página número 10 Acer Acer –LCD-B243HL 3.5 Brightness uniformity The test standard conditions refer to Sec 3.3. 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 Fr Resumo do conteúdo contido na página número 11 Acer Acer –LCD-B243HL 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 TMDS Data 3- 13 TMDS Data 3+ 14 +5V Power 15 GND 4.5 VGA in 4.5. Resumo do conteúdo contido na página número 12 Acer Acer –LCD-B243HL 4.5.2 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 30K~80KHz V-Sync Frequency 55~75Hz 4.6 Timing table Resolution Resolution Horizontal Vertical Nominal Pixel Mode Write in EDID (active dot) (total dot) Frequency (KHz) Frequency (Hz) Clock (MHz) 640x480@60Hz Resumo do conteúdo contido na página número 13 Acer Acer –LCD-B243HL 4.7 Audio output SPEC Specification Items TEST CONDITIONS Min TYP MAX Output power (W) 1.6 2.0 2.4 THD+N = 10% T 1KHz 1Vrms Output impedance ( Ω) 3.4 4 4.6 AT 1KHz 1Vrms Po 2.0W Total harmonic distortion plus noise --- --- 10% Signal to noise ratio (dB) 40 --- --- THD+N 5% 200 250 300 PWM frequency (KHz) Note: The low pass RC Filter (R=100 Ω / C=0.047uF) for Class-D Output Power and Resumo do conteúdo contido na página número 14 Acer Acer –LCD-B243HL 4.8.1 VGA EDID table 0 1 2 3 4 5 6 7 8 9 A B C D E F 00 FF FF FF FF FF FF 00 04 72 D3 00 40 85 40 85 0 36 12 01 03 08 35 1D 78 EA 60 85 A6 56 4A 9C 25 1 12 50 54 B3 0C 00 71 4F 81 00 95 00 D1 C0 81 80 2 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C 3 45 00 13 2A 21 00 00 1A 00 00 00 FC 00 42 32 34 4 33 48 4C 0A 20 20 20 20 20 20 00 00 00 FD 00 37 5 4B 1E 50 12 00 0A 20 20 20 2 Resumo do conteúdo contido na página número 15 Acer Acer –LCD-B243HL 5. Function Specifications All the tests to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted. The standard conditions are: Temperature : 25 ± 5°C Warm-up time : 30 minutes minimum Checking display modes : All the specified modes 5.1 Panel general specifications 5.1.1 General specifications Item Describe Supplier AU Resumo do conteúdo contido na página número 16 Acer Acer –LCD-B243HL 5.1.2 LCD module defects LCD module defects check follow to the IIS. 5.2 Keypad Function 5.2.1 Control buttons [POWER] Power on or power off the monitor A. When “Main OSD” displays, press these keys to change the contents of an adjustment item, or change an adjustment value [ ►], [ ◄] B. When “Main OSD” un-displays, press [ ►] to show “Audio” OSD and increase the volume, press [ ◄] to sh Resumo do conteúdo contido na página número 17 Acer Acer –LCD-B243HL 5.3 OSD Structure The On-Screen Display (OSD) shall be an easy to use icon based menu through keypad OSD buttons or remote control unit. The unit shall leave the factory with all OSD controls set to their default values. First Second Third Control Range Default Value ACER eColor Management empowering --- Standard mode Technology User mode 50 Text mode 50 Contrast 0 ~ 100 Standard mode Resumo do conteúdo contido na página número 18 Acer Acer –LCD-B243HL Wide Mode Full/ Aspect Full DDC/CI ON/OFF ON Wide Mode Full/ Aspect Input Source Full (Analg only) DDC/CI ON/OFF ON Resolution --- --- --- H. Freq --- --- --- Info V. Freq --- --- --- Analog/Digital Input --- --- --- S/N ETL000….0000(22) Reset --- --- --- --- Exit --- --- --- --- Notes: (1) Clock default 50 is for Visa timing. Others depend on timing. (2) Depend Resumo do conteúdo contido na página número 19 Acer Acer –LCD-B243HL FW IC Model Secondly download FW software: first select “READ”, and then load FW software in Rooter (Fig.2). FW software rooter Software Checksum Thirdly, select “Connect” and enter ISP MODE as in the following Figure 3. 18 Resumo do conteúdo contido na página número 20 Acer Acer –LCD-B243HL Fourthly, select “AUTO”, and keep its default value. Click “RUN” for beginning programming. There will be prompting if programming is OK. Note: if programming fails or success rate is not high, click “Config” and adjust its speed in “E2PROM DEVICE SETTING” 19
Acer Acer –LCD-B243HL 3.3 Brightness output The test to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted. Temperature : 25 ± 5°C Test pattern : white Video Resolution : 1920 x 1080 Video input level : 700 mV ± 2% Warm-up time : 30 minutes Set brightness control and also contrast control at maximum, to measure the screen center, the light
Acer Acer –LCD-B243HL 3.5 Brightness uniformity The test standard conditions refer to Sec 3.3. 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 Fr
Acer Acer –LCD-B243HL 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 TMDS Data 3- 13 TMDS Data 3+ 14 +5V Power 15 GND 4.5 VGA in 4.5.
Acer Acer –LCD-B243HL 4.5.2 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 30K~80KHz V-Sync Frequency 55~75Hz 4.6 Timing table Resolution Resolution Horizontal Vertical Nominal Pixel Mode Write in EDID (active dot) (total dot) Frequency (KHz) Frequency (Hz) Clock (MHz) 640x480@60Hz
Acer Acer –LCD-B243HL 4.7 Audio output SPEC Specification Items TEST CONDITIONS Min TYP MAX Output power (W) 1.6 2.0 2.4 THD+N = 10% T 1KHz 1Vrms Output impedance ( Ω) 3.4 4 4.6 AT 1KHz 1Vrms Po 2.0W Total harmonic distortion plus noise --- --- 10% Signal to noise ratio (dB) 40 --- --- THD+N 5% 200 250 300 PWM frequency (KHz) Note: The low pass RC Filter (R=100 Ω / C=0.047uF) for Class-D Output Power and
Acer Acer –LCD-B243HL 4.8.1 VGA EDID table 0 1 2 3 4 5 6 7 8 9 A B C D E F 00 FF FF FF FF FF FF 00 04 72 D3 00 40 85 40 85 0 36 12 01 03 08 35 1D 78 EA 60 85 A6 56 4A 9C 25 1 12 50 54 B3 0C 00 71 4F 81 00 95 00 D1 C0 81 80 2 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C 3 45 00 13 2A 21 00 00 1A 00 00 00 FC 00 42 32 34 4 33 48 4C 0A 20 20 20 20 20 20 00 00 00 FD 00 37 5 4B 1E 50 12 00 0A 20 20 20 2
Acer Acer –LCD-B243HL 5. Function Specifications All the tests to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted. The standard conditions are: Temperature : 25 ± 5°C Warm-up time : 30 minutes minimum Checking display modes : All the specified modes 5.1 Panel general specifications 5.1.1 General specifications Item Describe Supplier AU
Acer Acer –LCD-B243HL 5.1.2 LCD module defects LCD module defects check follow to the IIS. 5.2 Keypad Function 5.2.1 Control buttons [POWER] Power on or power off the monitor A. When “Main OSD” displays, press these keys to change the contents of an adjustment item, or change an adjustment value [ ►], [ ◄] B. When “Main OSD” un-displays, press [ ►] to show “Audio” OSD and increase the volume, press [ ◄] to sh
Acer Acer –LCD-B243HL 5.3 OSD Structure The On-Screen Display (OSD) shall be an easy to use icon based menu through keypad OSD buttons or remote control unit. The unit shall leave the factory with all OSD controls set to their default values. First Second Third Control Range Default Value ACER eColor Management empowering --- Standard mode Technology User mode 50 Text mode 50 Contrast 0 ~ 100 Standard mode
Acer Acer –LCD-B243HL Wide Mode Full/ Aspect Full DDC/CI ON/OFF ON Wide Mode Full/ Aspect Input Source Full (Analg only) DDC/CI ON/OFF ON Resolution --- --- --- H. Freq --- --- --- Info V. Freq --- --- --- Analog/Digital Input --- --- --- S/N ETL000….0000(22) Reset --- --- --- --- Exit --- --- --- --- Notes: (1) Clock default 50 is for Visa timing. Others depend on timing. (2) Depend
Acer Acer –LCD-B243HL FW IC Model Secondly download FW software: first select “READ”, and then load FW software in Rooter (Fig.2). FW software rooter Software Checksum Thirdly, select “Connect” and enter ISP MODE as in the following Figure 3. 18
Acer Acer –LCD-B243HL Fourthly, select “AUTO”, and keep its default value. Click “RUN” for beginning programming. There will be prompting if programming is OK. Note: if programming fails or success rate is not high, click “Config” and adjust its speed in “E2PROM DEVICE SETTING” 19
