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Acer
Acer –LCD-BV193HQ
Service Manual
LCD Monitor Acer BV193HQ
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Summary of Contents for Acer BV193HQ

  • Page 1 Acer Acer –LCD-BV193HQ Service Manual LCD Monitor Acer BV193HQ - 0 -...
  • Page 2: Table Of Contents

    Copyright 2006 InnoLux Tech. Corp. Ltd 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 BV193HQ Service Manual...
  • Page 3: Important Safety Notice

    Acer Acer –LCD-BV193HQ Important Safety Notice 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

    1. General: Acer BV193HQ is designed with LVDS interface and dual (analog and digital signal) 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.
  • Page 5 Acer Acer –LCD-BV193HQ 2.2 Safety, EMC, Ergonomics and Compatibility Requirements Items Description UL/cUL TUV/GS BSMI Other Safety ● ● ● ● ● FCC-B CE/EMC VCCI C-Tick BSMI ● ● ● ● ● ● Nemko/Erg TCO99 TCO03 Ergonomics ● ● Windows 95/98/Me...
  • Page 6 Acer Acer –LCD-BV193HQ Protection See Table-1 Power management See Table-2 Note2. Before each test, the buck capacitor need to be discharged. Before each test, it must be 10 minutes at least after the latest test. Note4. ested by DC loading side parallel with a 47uF/EC and 0.1uF/Ceramic , Capacitors and measured band-width with DC-20MHz, the sine wave signal that the frequency is 1K Hz input when testing the ripple for the 5V of audio.
  • Page 7 Acer Acer –LCD-BV193HQ LCD Module M185XW01-V0 ≥250 cd/m Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall ≥ BL cd/m (as panel spec) 3.4 White balance Chromaticity Coordinate Mode Cool 9300K 0.283 ±...
  • Page 8 Acer Acer –LCD-BV193HQ 800x600@56Hz 1024 x 625 35.156 56.250 36.000 800x600@60Hz 1056 x 628 37.879 60.317 40.000 SVGA 800x600@72Hz 1040 x 666 48.077 72.188 50.000 800x600@75Hz 1056x625 46.875 75.000 49.500 832x624@74.55Hz 1152x667 49.722 74.55 57.28 1024x768@60Hz 1344x806 48.363 60.004 65.000...
  • Page 9 Acer Acer –LCD-BV193HQ B193HQ DVI EDID table V193HQ VGA EDID table V193HQ DVI EDID table...
  • Page 10 Acer Acer –LCD-BV193HQ 4.5 Audio signal Items Specification ≧ 10K ohm Input impedance 200Hz – 20kHz Frequency response range ≧ 40 dB Signal to noise ratio ≧ 1.0 W + 1.0 W ( 10%THD ) Output power 5. Function Specifications All the tests to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted.
  • Page 11 “ACER e Color Management” and “User” to instead “Contrast” and “Brightness” separately. When press “ACER e Color Management” to show “e Color OSD”, and press “User” to show OSD interface before. The translations of “ACER e [MENU] Color Management” and “User” are always English.
  • Page 12 Acer Acer –LCD-BV193HQ Text mode Standard mode Graphics mode Movie mode Focus 0 ~ 100 Depend on each timing Image Clock 50 ○ 0 ~ 100 H. Position 0 ~ 100 Position V. Position 0 ~ 100 Depend on each timing...
  • Page 13 Acer Acer –LCD-BV193HQ Set In-System Programming Enable B. ISP OFF Set In-System Programming Enable C. Load File Load Hex File to Buffer D. Erase Erase MCU Fash Rom E. Program Write Buffer Data to MCU Flash Rom F. Auto ISP ON→Erase→Promgram→ISP OFF...
  • Page 14 Acer Acer –LCD-BV193HQ How to Setting Connect to Novatek ISP Board by USB, Select “NVT EasyUSB”. USB IIC Speed Limit, Suggestion : Select “Low Speed”. After Setting, Select “Comfirm Change” to confirm your change. How to Program File to MCU Flash Rom A.
  • Page 15 Acer Acer –LCD-BV193HQ Select Confirm, Load File OK Step 2. Set In-System Programming Enable Select “ISP ON”, Enable ISP...
  • Page 16 Acer Acer –LCD-BV193HQ C. Step 3. Erase MCU Fash Rom Select “Erase”, Erase Flash,Avoid Conflict D. Step 4. Write Buffer Data to MCU Flash Rom Select “Program”, Program Buffer Data to Flash E. Step 5. Set In-System Programming Disable Disable ISP, Start MCU...
  • Page 17 Acer Acer –LCD-BV193HQ F. Auto Mode Step2 ~ Step5 = “Auto” After Step 1,we can select “Auto” directly,to run Program File to MCU Flash Rom 5.5, BV193HQ EDID SOP 1、 Software a.port95nt.exe b.Edidtool.exe c.BV193HQ model 2、Hardware a.PC(winXP or win2000)1PCS; b.Tool(EDID Card、VGA cable & DVI cable)
  • Page 18 Acer Acer –LCD-BV193HQ First set up Port95nt.exe 4 . Click next button continually then can finish setting.
  • Page 19 Acer Acer –LCD-BV193HQ 5. EDID Tool Set up A : USB interface provide +5V DC power(No Power is ok ) B : Connect DDC Card and PC with collateral interface ; C :VGA、DVI use different cable to link DDC and PC 6.
  • Page 20 Acer Acer –LCD-BV193HQ 7. Writing EDID process : System time CheckSum Model name BV193HQ Model name BV193HQ week Result State information...
  • Page 21 Acer Acer –LCD-BV193HQ 7.1 Choose File menu in main menu ,choose Auto Write button,click S/N blank . BV193H 7.2 Cloose the Model in main menu, and the password is 1234. BV193HQ 7.3.Choose the model, such as Acer,...
  • Page 22 Acer Acer –LCD-BV193HQ 7.4 Input S/N in the Blank, Eg:ETL7777777777777777777,the program can write directly BV193HQ 7.5 The program can CHECK VGA&DVI by itself after writing EDID...
  • Page 23 Acer Acer –LCD-BV193HQ BV193HQ BV193HQ BV193HQ 7.6 If write successfully , you can see PASS in the right. BV193HQ BV193H...
  • Page 24: Flat Panel Specification

    Acer Acer –LCD-BV193HQ 02. Flat Panel Specification...
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  • Page 51 Acer Acer –LCD-BV193HQ Exploded Diagram 3.1 Screw List 3.1 LE18L4 (B193HQ) Screw List Fixed Item Part No. Description Remark T(kg*cm) 5091463062 I/F Board to Chassis*1 SCREW,P,CROSS,W/WAS,M3*6,Zn-Cc 6.5±0.5 Power Board to Chassis*3 5090000007 D-SUB CON*2 BOLT,#4-40x11.8,Ni ROHS 3.75±0.25 DVI CON*2 5091166121 SCREW,B,CROSS,M4*12,BLK-Zn,ROH 12±0.5...
  • Page 52 Acer Acer –LCD-BV193HQ 3.2 .LCD Exploded drawing ( B193HQ...
  • Page 53 Acer Acer –LCD-BV193HQ 3.3 LCD Exploded drawing (V193HQ)
  • Page 54: Troubleshooting

    Acer Acer –LCD-BV193HQ 04 Troubleshooting 4.1 No Power & LED Off No power Check primary Check Check IC802, circuit if rectifier voltage C805, T801, short Check F801, P801, RT801, D801 Check pin2 of CheckC815,D806, IC802 voltage about 16V Check pin1 of IC802...
  • Page 55 Acer Acer –LCD-BV193HQ 4.2 Unstable Power Unstable power Check sampling Check R811, Circuit R818, R810, R811, R818, R810, R825, Check the C Check the R Change IC803 pin voltage of pin voltage of IC803 if 3V IC80 about Check Check pin2...
  • Page 56 Acer Acer –LCD-BV193HQ 4.3 DC output voltage is unstable Output voltage unstable Check ZD801, Check Vbe of Checkcircu D803, D805 Q801below 0.3V it if Check Q801, Q802 Check R832,, IC801, Check Check Pin R of IC803 voltage reference about 2.5V Check R822, R823.R825...
  • Page 57 Acer Acer –LCD-BV193HQ 4.4 No Raster No raster? LED Blue? Backlight can’t be turned on. Check power Is there 16Vdc supply voltage on pin9 of IC501? Is there high-level Check I/F Is Ok R510? voltage on pin8 of board IC501?
  • Page 58 Acer Acer –LCD-BV193HQ 4.5 Black Screen...
  • Page 59 Acer Acer –LCD-BV193HQ 4.6. White screen...
  • Page 60 Acer Acer –LCD-BV193HQ Bad Screen...
  • Page 61: Spare Parts List

    Acer Acer –LCD-BV193HQ 05 Spare parts List O E M P /N D e s c r ip tio n M O Q 7 9 2 1 9 1 3 0 0 7 1 0 R P C B A ,I/F B O A R D (E M E A ,W /S P K ),L E 1 8 L 5 -7 1 2 R O...
  • Page 62: Schematics And Layouts

    Acer Acer –LCD-BV193HQ 06 Schematics and Layouts 6.1 PI BD Layout...
  • Page 63 Acer Acer –LCD-BV193HQ 6.2 PI BD Layout...
  • Page 64 Acer Acer –LCD-BV193HQ 6.3 IF BD Layout...
  • Page 65 Acer Acer –LCD-BV193HQ 6.4 IF BD Layout...
  • Page 66 VCC5V CN101 VGA5V D107 +3.3V BAT750-LF/NC DVI5V Note 5 Note 6 Note 2 CCFL_ON/OFF R110 R104 0/NC Note 3 U102 D101 BRIGHTNESS 5 U101 +3.3V LD1117AL-1.8V +1.8V VOLUME SSM24APT LD1117AL-3.3V VCC5V +3.3V MUTE VOUT +1.8V DIO--SMA DCR_CONTROL 5 VOUT +3.3V R199 100 R101 10P 2.0mm...
  • Page 67 CN102 Note 2 DZ11AA1-H5W6-4F RB101 R114 C113 0.047u/16V RED+ R0603 RB102 R115 C114 0.047u/16V GREEN+ R0603 RB103 R116 C115 0.047u/16V BLUE+ R0603 VGA5V R159 470 1% C134 0.047u/16V Note 1 C116 C117 C118 R0603 10p/50V/NC 10p/50V/NC 10p/50V/NC R122 C119 0.047u/16V RED- R123 C120 0.047u/16V...
  • Page 68 VCC5V DVI5V DVI5V CN201 DVI-D_CON VCC5V 2,3,5 DVI_RX2- R201 Note 1 RX2- RX2- DVI_RX2+ R202 RX2+ RX2+ DVI_RX1- R203 R215 RX1- D201 RX1- DVI_RX1+ R204 0/NC C201 BAV70 RX1+ RX1+ 0.1/16V DVI_RX0- R205 RX0- RX0- DVI_RX0+ R206 RX0+ RX0+ R211 R212 R213 DVI_RXC+...
  • Page 69 CN107 CN105 +3.3V DVDD_3V3 +3.3V AVCC_3V3 PVCC_3V3 +3.3V VAA_3V3 +1.8V Note8 FFC-CON/NC Note7 FFC-CON +3.3V Note 1 Note 1 Note 1 Note 1 Note 1 FB102 FB104 FB107 FB106 RXO0- RXO0+ 60Ω 60Ω 60Ω 60Ω RXO1- C139 RXO1+ C141 C150 1u/16V C138 RXO2-...
  • Page 70: Assembly And Disassembly

    Acer Acer –LCD-BV193HQ 7.0 Assembly and Disassembly The tool of Assembly and disassembly : 1) Electrostatic gloves 2) Electric screwdriver: the lengthe of screwdriver top is 6±0.5cm and 15±0.5cm ; the diameter of screwdriver top is Φ5*H5mm Description Sequence Item...
  • Page 71 Acer Acer –LCD-BV193HQ 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 72 Acer Acer –LCD-BV193HQ 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 792191300710R W/SPK),LE18L5 relevant interface like picture1. -712 RO (2).Put the fixed mainboard in the right position.
  • Page 73 Acer Acer –LCD-BV193HQ 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 74 Acer Acer –LCD-BV193HQ Assembly and Disassembly (continue) 1)Fix chassis on the back of panel and ASSY,CHASSIS front bezel 701000012103R ,AUO,W/DVI Fix chassis 2)Put lamp wire and FFC wire in order as AUDIO ,LE18L5 picture 1.Tear off the adhensive tape of FFC wire;...
  • Page 75 Acer Acer –LCD-BV193HQ Assembly and Disassembly (continue) Assemble Put 2pcs speaker into the chassis of right and left as picture Speaker ASSY,BACKCO Fix back V,AUO,BLA,W/ Check if back cover is fixed properly 714050019803R DVI AUD cover LE18L5 Assemble Put the stand into the relevant position...
  • Page 76 Acer Acer –LCD-BV193HQ 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...