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Acer V223HQ Service Manual

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Acer
Acer –LCD-B&V223HQ
Service Manual
LCD Monitor Acer B&V223HQ
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Summary of Contents for Acer V223HQ

  • Page 1 Acer Acer –LCD-B&V223HQ Service Manual LCD Monitor Acer B&V223HQ - 0 -...

  • Page 2: Table Of Contents

    All Rights Reserved This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior written permission of InnoLux Tech. Corp. Ltd. Acer B&V223 HQ Service Manual...

  • Page 3: Important Safety Notice

    Acer Acer –LCD-B&V223HQ 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.

  • Page 4: Product Specification

    Acer Acer –LCD-B&V223HQ 01 Product Specification General: BV223HQ series LCD monitor is designed with a wide screen 21.5” WSXGA+ TFT LCD panel, LVDS interface, Analog RGB signal input. It featured with embedded universal AC power supply and audio input. This monitor can support maximum resolution up to 1920 x 1080@60Hz.
  • Page 5 Acer Acer –LCD-B&V223HQ Operating 10000 ft (Ta=50, t=24h) Storage 40000 ft (Ta=30, t=24h ) Note 1: Temperature and relative humidity range must be in the area shown as the following figure due to panel limited Note 2: Altitude spec must not over panel spec.
  • Page 6 Acer Acer –LCD-B&V223HQ AC Input Current 100Vac 1.2A(max) 240Vac 0.6A(max) Inrush Current 100Vac,cold star,25°C 40A (max) See Note2 240Vac,cold star,25°C 60A(max) AC-DC power Efficiency DC output full loading ≥75% Note2. Before each test, the buck capacitor need to be discharged.
  • Page 7 Acer Acer –LCD-B&V223HQ 3.2 Backlight Panel: Items Specification Lamp 4 CCFL Input Voltage 15.2V~18.5V Input current 1.6A (Typ.), 2.2A (Max.) 5.5V≧Von≧ 2.0 V (on) On/Off switch level -0.3v ≤ Voff ≤ 0.8 V (off) 35%~100% Brightness PWM duty PWM:High=3.3V(3.0~3.6V),Low=0.0V CCFL operating Voltage 750Vrms (Typ.),...
  • Page 8 Acer Acer –LCD-B&V223HQ L/10 W/10 Fig.3 Input / Output Signal Specifications 4.1 Video signals Analog RGB signal: 0.7Vp-p (Input impedance = 75 Ohm) Sync: TTL level (Input impedance ≧ 1k Ohm) Positive and negative sync of Separate Horizontal/Vertical Sync Digital : TMDS Signal: (min) ±200mVpp@24Bit...
  • Page 9 Acer Acer –LCD-B&V223HQ 1400x1050@60Hz 65.317 59.978 121.75 SXGA+ UXGA 1600*1200@60Hz 75.000 60.000 162.000 1360*768@60Hz 47.712 60.015 85.5 WXGA 1280x800@60Hz 49.702 59.81 83.5 WXGA+ 1440*900(Red)@60Hz 55.469 59.901 88.75 WSXGA+ 1680*1050@60Hz 65.290 59.954 146.250 WSXGA+ 1920*1080@60Hz 67.500 148.5 IBM MODES 640*350@70Hz 31.469 70.087...
  • Page 10 Acer Acer –LCD-B&V223HQ DD 0C B223 Analog B223 Analog V223W A Analog(OD) V223W A DVI(OD) B223W A Analog(OD) B223W A DVI(OD) Audio signal Items Specification ≧ 10K ohm Input impedance 200Hz – 10kHz Frequency response range ≧ 40 dB Signal to noise ratio ≧...
  • Page 11 “ACER eColor Management” and “User” to instead “Contrast” and “Brightness” separately.When press “ACER eColor Management” to show “e Color OSD”,and press “User” to show OSD interface before. The translations of “ACER [MENU] eColor Management” and “User” are always English.
  • Page 12 Acer Acer –LCD-B&V223HQ Text mode Standard mode Graphics mode Movie mode User mode Text mode Brightnes Standard 0 ~ 100 mode Graphics mode Movie mode Depend on each Focus 0 ~ 100 Image timing Clock 0 ~ 100 50 ○ 1 H.
  • Page 13 Acer Acer –LCD-B&V223HQ 6. SOP of firmware upgrade 6.1 Operational condition: Equipment: PC, ISP card, signal cable and power cable. ESD requirements: antistatic wrists, antistatic gloves (fingers), and connecting cable Name of ISP program: ISP_Tool_v3.7.5.3 Manufacture of FW IC ： PMC/SST/MX Operational steps: 1.
  • Page 14 Acer Acer –LCD-B&V223HQ FW software rooter Software Checksum Thirdly, select “Connect” and enter ISP MODE as in the following Figure 3.
  • Page 15 Acer Acer –LCD-B&V223HQ 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...
  • Page 16 Acer Acer –LCD-B&V223HQ After connecting, AC ON, DC ON ◆Flowing chart Open ISP program Choose manufacturer and model of FW IC LOAD FW software Click Connect and enter ISP MODE Choose Config Click AUTO and RUN for and adjust beginning programming...

  • Page 17: Flat Panel Specification

    Acer Acer –LCD-B&V223HQ 02. Flat Panel Specification...
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  • Page 33: Exploded Diagram

    Acer Acer –LCD-B&V223HQ 03 Exploded Diagram 3.1 Screw List 3.1 LE21M4(V223HQ) Screw List Fixed Item Part No. Description Remark T(kg*cm) 509216608110 SCREW,F,CROSS,M4*8,Zn, 12±0.5 For hinge to backcover ROHS(NYLOK,35F) 509000000700 BOLT,#4-40x11.8,Ni ROHS 4.0±0.25 For D-SUB CON&DVI 509412610500 SCREW,B,CROSS,T.T-4*10,BLK ,RO 8.5±0.5 For Hinge to Stand...
  • Page 34 Acer Acer –LCD-B&V223HQ 3.2. LCD Exploded drawing (B223HQ )
  • Page 35 Acer Acer –LCD-B&V223HQ 3.2. LCD Exploded drawing (V223HQ )

  • Page 36: Troubleshooting

    Acer Acer –LCD-B&V223HQ 04 Troubleshooting 1. No Power & LED Off Unstable power Check sampling Check R822, R823, Circuit R824, R825 Change R822, R823, R824, R825 Check the C pin Check the R pin voltage of IC803 Change voltage of IC803...
  • Page 37 Acer Acer –LCD-B&V223HQ 2. No raster N o b a c k li g h t Y e s N o p o w e r su p p ly t o C h e c k t h e c a b l e t h a t fro m...
  • Page 38 Acer Acer –LCD-B&V223HQ 3.Black screen Black screen Check power supply:pin 1,2 of Power fail CN102 Check U101&U102 Check power supply PIN2 for U105 Check reset (pin108) Check C164,R175 of U105 Check crystal (pin Check 127,128) waveform of X101,C157,C158 U105 Check CCFL-...
  • Page 39 Acer Acer –LCD-B&V223HQ 5. White screen White screen LVDS Cable Workmanship Reinsert Change LVDS cable NG LVDSCable Check VLCD Check LVDS Panel Fail is 5V signal Check Panel-Enable of U105 Fail U105(pin73) Check Q101,Q102,Q104,...
  • Page 40 Acer Acer –LCD-B&V223HQ 6. Bad screen B ad Screen LV D S C able W o rkm anship R ein sert C hange LV D S LV D S C able N G C able U 10 5 Fail...

  • Page 41: Spare Parts List

    Acer Acer –LCD-B&V223HQ 05 Spare parts List 8211M 371A120R O EM PAR T N O D ESC R IPTIO N 791411401610R P C B A,P /I B OAR D ,W /S P K ,LE 22D 2-612 R OH S 792271300700R...

  • Page 42: Schematics And Layouts

    Acer Acer –LCD-B&V223HQ 06 Schematics and Layouts 6.1 PI BD Layout...
  • Page 43 Acer Acer –LCD-B&V223HQ 6.2 PI BD Layout...
  • Page 44 Acer Acer –LCD-B&V223HQ 6.2 IF BD Layout...
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  • Page 46 R827 C815 1000p/500V C805 T801 D803 SP10100C 2200p/400V SPW-100 DC 380V Max. L802 +16V 3,4 R805 0R2 1W R831 R828 C816 100Ω 1W 1000p/500V C817 D801 ZD802 C818 C819 ZD801 BL4-06 C806 1000u/25V 470u/25V C804 P6KE150A 4700p/400V 680u/25V /NC 150u/450V D805 SP1040C /NC Q801 R830...
  • Page 47 +16V R504 R505 CN501 C501 4100-D02 C502 470u/25V R506 2.2u/25V C504 1M5 3KV 1000p/50V C505 T501 R524 1000p/50V SPW-080 D502 R540 BAV99 C506 22K 1% 12p/3KV C508 R510 2K 1% R517 33 CN502 R521 4100-D02 VCC5V U501 C509 C503 AP9971GD 3p/3KV D503 R508...
  • Page 48 +16V +16V C703 C702 P702 470u/25V R701 0.1/50V Line_L Left_in U701 TDA8496SA Left_Out Line_R C704 0.47/16V R702 Right_Out D701 D702 Right_in OUTL C706 0.47/16V 220u/16V C705 ST-510 OUTR 220u/16V C707 S_GND FB701 600Ω R717 J708 MUTE +16V VAROUT_R CN701 R703 STBY VAROUT_L R704...
  • Page 49 Pin Define IF CN102 CON CN301 CON CN302 KEYPD CON 1x8p 1.25mm180degree 2x4p 2.0mm 180degree 2x4p 2.0mm 180degree 2x4p 2.0mm 90degree CN302 CN301 MENU RIGHT&Left Auto E-color LED_A LED_G POWER 2x4P 2.0mm 2x4P 2.0mm From IF BD To Keypad InnoLux Document Number : SIZE : APPRO BY :...

  • Page 50: Assembly And Disassembly

    Acer Acer –LCD-B&V223HQ 7.0 Assembly and Disassembly Description Sequence Item Photo Procedures (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. 21.5"M215HW0 Place (3).Place panel on the foam like the...
  • Page 51 Acer Acer –LCD-B&V223HQ Assembly and Disassembly (continue) 1.Reverse the panel by 180 degree,put the surface of panel upsides and insert front bezel in the panel. 2.Reverse the panel by 180 degree using both hands,put the surface of panel downsides and make sure FFC interface...
  • Page 52 Acer Acer –LCD-B&V223HQ Assembly and Disassembly (continue) (1).Insert FFC wire into its relevant interface of mainboard properly like PCBA,I/F attached picture1. BOARD(EMEA, mainboar (2).Insert the short keypad into its 792271300700R W/SPK),LE21M relevant interface like picture1. 4-712 RO (2).Put the fixed mainboard in the right position.
  • Page 53 Acer Acer –LCD-B&V223HQ Assembly and Disassembly (continue) Twist Fix 5 pcs of screws separately on the poweboard and mainboard like the PCBA attached Picture1 screw (1). Handle hexagonal screws and electric opener Twist (2). Twist screw in the interface like the Hexagonal attached Picture1.
  • Page 54 Acer Acer –LCD-B&V223HQ Assembly and Disassembly (continue) 1)Fix chassis on the back of panel and front bezel Fix chassis 2)Put lamp wire and FFC wire in order as picture 1.Tear off the adhensive tape of FFC wire; 2.Insert FFC wire into the interface of...
  • Page 55 Acer Acer –LCD-B&V223HQ Assembly and Disassembly (continue) Put 2pcs speaker into the chassis of right Assemble and left as picture Speaker ASSY,BACK,CO Fix back VER,AUO,W/DV Check if back cover is fixed properly 714050020403R I AUDIO cover ,LE21M3 Assemble Put the stand into the relevant position...
  • Page 56 Acer Acer –LCD-B&V223HQ Assembly and Disassembly (continue) Use 4pcs screw fix stand on the back of Fix stand assemble like attached Picture (1)Release monitor to the packing line (2)Put monitor into carton like the Packing attached picture...

This manual is also suitable for:

B223hq