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 ..............................................................................................
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 supply in you residence, consult your local dealer or Power Company.
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 screen display. The image can be adjusted through OSD control.
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 conditions Operating Specification 0°C (Relative Humidity is as low as possible), 12 hrs.
Acer Acer –LCD-B243HL 2.2 Safety, EMC, Ergonomics and Compatibility Requirements Items Safety EMC Ergonomics Compatibility Power Management Description UL/c CB ● ● FCC CE ● ● TCO TCO03 ● ● Windows ● Energy Star ● TUV/G ● CCC ● CCC ● VCCI-B ● Windows 2000 ● Other Windows ● Windows ● 2.3 Electrostatic Discharge Requirements Item Electrostatic Discharge Condition Spec Contact discharge: 4KV IEC61000-4-2(EN55024) Contact discharge: 8KV Air discharge : 8KV Air discharge : 15KV 2.
Acer Acer –LCD-B243HL 3. Electrical and Optical Characteristics and Performance 3.1 Main Power Supply 3.1.1 Input characteristics Items Condition Spec 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 OTP(Over temperature protection) NA Fuse protection NA
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 output shall BL ≥ 200 cd/m2 . 3.
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 Frequency response range ﹕200Hz ~ 10kHz 4.3 USB in The USB 2.
Acer Acer –LCD-B243HL Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Symbol TMDS Data 2TMDS Data 2+ TMDS Data 2/4 shield Pin 16 17 18 19 20 21 22 23 24 DDC Clock DDC Data Analog Vertical Sync TMDS Data 1TMDS Data 1+ TMDS Data 1/3 shield TMDS Data 3TMDS Data 3+ +5V Power GND Symbol Hot Plug Detect TMDS Data 0TMDS Data 0+ TMDS Data 0/5 shield Clock shield Clock + Clock - 4.5 VGA in 4.5.
Acer 4.5.2 Acer –LCD-B243HL Signal SPEC: Items Analog RGB signal Sync H-Sync Frequency V-Sync Frequency Condition Specification Input impedance =75 Ohm Input impedance ≧1k Ohm 0.7Vp-p TTL level, Separate H/V-sync(+/-) 30K~80KHz 55~75Hz 4.6 Timing table Mode MAC VESA SVGA XGA VESA SXGA VESA WXGA WXGA+ WSXGA+ UXGA Note: Resolution (active dot) Resolution Horizontal Vertical (total dot) Frequency (KHz) Frequency (Hz) Nominal Pixel Clock (MHz) Write in EDID 640x480@60Hz 640x480@72Hz 640x480@66.
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 Total harmonic distortion plus noise --- --- 10% Signal to noise ratio (dB) 40 --- --- PWM frequency (KHz) 200 250 300 Po≦ 2.0W THD+N≦ 5% Note: The low pass RC Filter (R=100Ω / C=0.047uF) for Class-D Output Power and THD+N Measurement 4.
Acer 4.8.1 4.8.
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 AUO Model name M240HW01-V6 Display Area 531.36 × 298.89 Pixel Pitch 276.
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 show “Audio” OSD and decrease the volume . [MENU] A.
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.
Acer Acer –LCD-B243HL Input Source (Analg only) Wide Mode Full/ Aspect Full DDC/CI ON/OFF ON Full ON --------ETL000….0000(22) ----- Wide Mode Full/ Aspect DDC/CI ON/OFF Resolution H. Freq Info V. Freq Analog/Digital Input --------- --------- ----- ----- S/N Reset Exit ----- Notes: (1) Clock default 50 is for Visa timing. Others depend on timing. (2) Depend on timing & S/N 6. SOP of firmware upgrade (Manufacturer of Scaler is Mstar) 6.
Acer Acer –LCD-B243HL FW IC Model Secondly﹐download FW software: (Fig.2). first select “READ”, and then load FW software in Rooter FW software rooter Software Checksum Thirdly, select “Connect” and enter ISP MODE as in the following Figure 3.
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.
Acer Acer –LCD-B243HL After connecting, AC ON, DC ON ◆Flowing chart OK Open ISP program OK Choose manufacturer and model of FW IC OK LOAD FW software OK Click Connect and enter ISP MODE OK Choose Config and adjust programming Click AUTO and RUN for beginning programming OK NG Turn off power if programming is OK 20
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Acer Acer –LCD-B243HL 03 Exploded Diagram 3.1 B243HL_SCREW_LIST Fixed Item Part No. Description Qty T(kg*cm Remark ) 1 2 3 4 5 6 50914630610 2R SCREW P CROSS W/W-SPR M3*6 Zn 1 3.75±0.25 FOR POWER BOLT,#4-40x11.8,Ni 4 4.0±0.25 D-SUB CON&DVI 4 10.5±0.25 For back-cover to STAND ASSY SCREW,B,CROSS,T.T-4*10,BLK ,ROHS 2 9.0±0.25 For hinge to stand-BACK SCREW,P,CROSS,T.T4*6,Zn,ROHS 1 6.0±0.25 Plate base to Base SCREW P CROSS W/WAS M3*6 ZN-Cc 6 3.75±0.
Acer Acer –LCD-B243HL 05 Spare Pare parts List 8241Q172A120H ACER PART NO. OEM PART NO DESCRIPTION NA 55.LH40J.001 793111300700H PCBA,IF/B(V6,W/SPK,EMEA),LE24Q1-729 19.LH40J.001 793111400720H PCBA,P/I BOARD,W/SPK,LE24Q1-729 19.LBN0J.001 791401500000R PCBA,KEYPAD BOARD,LE9D0-612 ROHS 55.LGK0J.
Acer Acer –LCD-B243HL 50.L63VF.003 453030300120R CABLE AUDIO 1P 6FT BLACK/GREEN CP03B06P0 50.LA10J.003 453030300370R CABLE,DVI-D 18+1P MALE 6FT BLACK , ROHS 50.LBQ0J.001 453010100380R CABLE,D-SUB 15P MALE 6FT BLACK/BLUE, ROH 50.D030J.001 453030300360R CABLE,USB 6FT BLACK , 50.LGK0J.001 430303002440H HRN LVDS FFC 30P 166.5MM W/ALUMINUM FO 50.LGK0J.002 430300802940H HRN ASSY 2x4P to 8P 275mm UL3302#28 Con 50.LBP0J.001 430300801800R HRN ASSY 2x4P 75mm UL1571#28,ROHS 60.LH40J.
Acer Acer –LCD-B243HL 60.LDP0J.006 501020220030R COVER HINGE,BLACK ,RIGHT,FOR ADJUST,LE19D 60.LDP0J.005 501020220031R COVER HINGE,BLACK ,LEFT,FOR ADJUST,LE19D 60.LH40J.002 501020236213R BACK COVER,B,AUO THIN LED,W/DVI+VGA+USB, 60.LH40J.003 501260214700R STAND,B,,LE24Q1 60.LH40J.004 701000018213R ASSY,CHASSIS,B,AUO THIN LED,W/DVI+VGA+US LK.24005.
Acer Acer –LCD-B243HL 06 Schematics and Layouts 6.
Acer Acer –LCD-B243HL I/F BD Layout 44
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4 3 D107 VCC4.5V BAT750-LF/NC 3 R173 1 DVI5V 2 Note 2 Note 1 CN101 8P 2.0mm VCC5V D101 SSM24APT/NC VCC5V C175 0.1/16V ADJ R101 0 C104 R0805 0.1/16V + VOUT PAD +3.3V 2 +3.3V VOUT VIN 4 PAD +1.8V C102 100u/16V D 2 +1.8V 6 4 + + C105 0.1/16V C106 0.1/16V C103 22u/16V C107 0.1/16V GND C108 0.
5 4 75 1% 75 1% 75 1% R118 R119 R114 75 1% C113 0.047u/16V 0 R115 75 1% C114 0.047u/16V 0 R116 75 1% C115 0.047u/16V C117 C118 10p/50V/NC 10p/50V/NC R122 75 1% C119 0.047u/16V R123 75 1% C120 0.047u/16V R124 75 1% C121 0.047u/16V VGA_DET 2 D103 BAV99 1 2 D104 BAV99 1 2 D105 BAV99 1 C127 C123 0.1/16V/NC 0.1/16V C124 0.1/16V/NC VCC_ESD C125 0.
5 4 3 2 1 CN201 DVI-D_CON R203 R204 10 10 DVI_RX0DVI_RX0+ R205 R206 10 10 DVI_RXC+ DVI_RXC- R207 R208 10 10 SCL SDA VS 6 7 8 DVI_SCL DVI_SDA 5V GND HP RX4RX4+ GND RX3RX3+ RX5RX5+ 14 15 16 4 5 11 12 13 20 21 RX2RX2+ 6 6 RX1RX1+ 6 6 RX0RX0+ 6 6 RXC+ RXC- 6 6 R215 0/NC R211 4K7 C204 0.1/16V B C206 0.1/16V C208 0.1/16V C210 0.1/16V VCC WP SCL SDA A0 A1 A2 GND 1 2 3 4 GND C Note 2 R217 10K R218 100/NC 3 HPD_DVI Q201 PMBT3904 1 2 6V2 C213 0.
5 4 VDDP_33 +3.3V Note 1 3 2 1 AVDD_33 C142 22u/16V C143 C144 C145 C146 C147 0.1/16V 0.1/16V 0.1/16V 0.1/16V 0.1/16V R159 9 10 12 13 15 16 18 19 5 6 5 RX2+ 5 RX25 RX1+ 5 RX15 Rx0+ 5 RX05 RXC+ 5 RXC5 DDC_SDA_DVI 5 DDC_SCL_DVI GND Note 2 VCC5V AVDD_33 2 1 +3.
5 4 3 2 1 D D 5V_USB + C302 10u/25V 1 C303 2 0.1/16V 0.1/16V VOUT 0 3 4 R316 L301 DP0 DM0 R320 2 NC/20mH 1 2 DP DM EP302 Delete R315;R317 for Acer X233H Date: 08/09/01 Tomxiao 0 0 EP301 NC/R315 NC/R317 Q302 PMBT3904 0 D1M L302 CN303 NC/20mH D1P 2 DD1P 1 C324 10K VBUSPWR 0 4 C325 0.1/16V DD1M 3 R325 + 1 R313 PWR1 220u/10V OVRP1# 10K ESD FB303 120Ω 3A R327 1 2 3 4 EP303 EP304 5V_US B R311 ESD 1 2 3 4 5 6 7 8 22K VIN 1 4K7 6 +5V_U SB CN301 8P 2.
4 change for FHD2102 ID from 90 degree to 180 degree L_OUT- LOUT+ 14 L_OUT+ 12 AR AL_IN 9 AL AL 10 AL MUTE VOL GND 7 EO_R SHUT 8 5 EO_L VOL 6 3 Hp/Sp AGND 4 1 GND +5V 2 LOUT+ +5V R705 Audio5V MUTE_IC 10K D +5V C718 0.1/16V 3 15K R702 C706 1500p/50V C705 1500p/50V 10K AR 10K AR LOUT- 100p/50V 16 C702 ROUT+ LOUT- 11 R701 100p/50V 100p/50V ROUT- 100p/50V 15 AR_IN C703 C704 D 1 CN701 2*8P 2.
Acer Acer –LCD-B243HL 7.0 Assembly and Disassembly The tool of Assembly and disassembly : 1) Electrostatic gloves 2) Electric screwdriver: the length of screwdriver top is 6±0.5cm and 15±0.5cm ; the diameter of screwdriver top is Φ5*H5mm Sequence Item Photo Procedures S1 Place panel 1.Take panel out of box and place it on the foam; 2.Tear open the PE bag and put it in the designated carton; 3. Place panel on the foam like the attached picture.
Acer Acer –LCD-B243HL Assembly and Disassembly (continue) S4 Assemble chassis and PI board S5 Insert FFC cable into mainboard and Connect USB board mainboard and power board S6 Fix USB board mainboard and power board Insert IPC electric foam on the chassis like the attached 1.Place the chassis on the cushion ASSY,CHASSIS,B,A after check, like the attached picture. UO THIN 701000018213R 2.Insert power board into the LED,W /DVI+VGA+U designated location of chassis,like the S attached picture.
Acer Acer –LCD-B243HL Assembly and Disassembly (continue) S7 Twist hexagonal screws 4 3 2 1 1. Handle hexagonal screws and electric opener; 2. Twist screw in the interface as attached picture; 3. Place cushion on the designated location after iron frame is taken away. S8 Fix chassis fix chassis into bezel hook as attached picture. S9 Insert FFCcable 1. Insert FFC cable into desiganted connector and use jig to insert it;; 2. Tear off foil to stick the cable for fix.
Acer Acer –LCD-B243HL 1.insert the speaker cable into the PIN location of chassis like the attached picture 2.be sure the red cable is on the left and the green one is on the right. 3.be sure the cable is outside of the speaker. S11 Assemble the speaker S12 Insert keypad cable Insert keypad cable into designated location as attached picture.
