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Acer T230H - Bmidh Wide Touch Screen Display Service Manual
Summary of T230H - Bmidh Wide Touch Screen Display
Page 1
Acer t230h service guide service guide files and updates are available on the csd web: for more information, please refer to http://csd.Acer.Com.Tw/ 100% recycled paper.
Page 2: Copyright
Copyright copyright © 2003 by acer incorporated. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, c...
Page 3: Conventions
Conventions the following conventions are used in this manual: screen messages denotes actual messages that appear on screen note gives bits and pieces of additional information related to the current topic. Warning alerts you to any damage that might result from doing or not doing specific actions....
Page 4: Preface
Preface before using this information and the product it supports, please read the following general information. 1. This service guide provides you with all technical information relating to the basicconfiguration decided for acer’s “global” product offering. To better fit local market requirements...
Page 5: Notice:
Warning: (for fcc certified models) note: this equipment has been tested and found to comply with the limits for a class b digital device, pursuant to part 15 of the fcc rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This...
Page 6: Precautions
Precautions z do not use the monitor near water, e.G. Near a bathtub, washbowl, kitchen sink, laundry tub, swimming pool or in a wet basement. Z do not place the monitor on an unstable trolley, stand, or table. If the monitor falls, it can injure a person and cause serious damage to the appliance. U...
Page 7: Notes
Special notes on lcd monitors the following symptoms are normal with lcd monitor and do not indicate a problem. Notes z due to the nature of the fluorescent light, the screen may flicker during initial use. Turn off the power switch and then turn it on again to make sure the flicker disappears. Z yo...
Page 8: Table of Contents
Table of contents chapter 1 monitor feature…………………………………………………………………… 9-26 chapter 2 operating instrution ……………………………………………………… 27-32 chapter 3 machine assembly……………………………………………………………….. 33-38 chapter 4 trouble shooting………………………………………………………………….39-47 chapter 5 connector information………………………………………………...
Page 9: Chapter 1
Chapter 1 monitor feature driving system tft color lcd size 23"w pixel pitch 0.2655(h) * 0.2655 (v)mm viewable angle 170(h) x 160 (v) degree brightness 300 cd/m²(typ.) contrast ratio 1000:1(typ.) lcd panel response time 5ms (tr+tf) video 15 pin mini d-sub, 24 pin dvi and 14 pin hdmi. Input separate ...
Page 10
Switch * power switch * menu / enter * / volume * / volume * auto / exit * e-color external controls : * contrast/brightness * focus * clock * h.Position * w.Position * language * osd color temperature * osd position & timeout * auto config * input * information * reset * exit regulatory compliance ...
Page 11
Timings the product has 34 memory modes in total. 26 modes are preset and 8 modes are user definable. Mode no. 1 2 3 4 resolution 720 x 400 640 x 480 640x480 640 x 480 dot clock(mhz) 28.321 25.175 30.24 31.5 f h 31.469khz 31.469khz 35.0khz 37.861khz h-total ( us ) 31.78(900dots) 31.778 (800 dots) 28...
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Mode no. 5 6 7 8 resolution 800 x 600 800 x 600 800 x 600 1024 x 600 dot clock(mhz) 36 40 50 49 f h 35.16khz 37.879khz 48.077khz 37.34khz h-total ( us ) 28.44(1024 dots) 26.40 (1056 dots) 20.80 (1040dots) 26.776 (1312 dots) h-sync ( us ) 2.00(72 dots) 3.200 (128 dots) 2.400 ( 120 dots) 2.122 (104 do...
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Mode no. 9 10 11 12 resolution 1024 x 768 1024 x 768 1152 x 864 1280 x 960 dot clock(mhz) 65 75 108 108 f h 48.363khz 56.48khz 67.5 khz 60.000 khz h-total ( us ) 20.677(1344 dots) 17.71(1328 dots) 14.815(1600 dots) 16.667 (1800dots) h-sync ( us ) 2.092(136 dots) 1.81(136 dots) 1.185(128 dots) 1.037 ...
Page 14
Mode no. 13 14 15 16 resolution 1280 x 1024 1280 x 720 1280 x 800 1360 x 768 dot clock(mhz) 108 74.481 83.5 85.5 f h 63.981khz 44.760khz 49.702khz 47.712khz h-total ( us ) 15.630 (1688 dots) 22.341 (1664dots) 22.341 (1664dots) 20.959 (1792dots) h-sync ( us ) 1.037 (112 dots) 1.826 ( 136 dots) 1.826 ...
Page 15
Mode no. 17 18 19 20 resolution 1440 x 900 1680 x 1050 1600 x 1200 1920 x 1080 dot clock(mhz) 106.5 146.25 162 173 f h 55.935 65.29 75 67.158 h-total ( us ) 17.878 (1904 dots) 15.316 (2240 dots) 13.333 (2160dots) 14.890 (2576dots) h-sync ( us ) 1.417 (152 dots) 1.203 ( 176 dots) 1.185 ( 192 dots) 1....
Page 16
Mode no. 21 22 resolution 1920 x 1080 1920 x 1080 dot clock(mhz) 148.5 138.5 f h 67.5 66.58 h-total ( us ) 14.815 (2200 dots) 15.018 (2080 dots) h-sync ( us ) 0.296 (44 dots) 0.231 (32 dots) h-b-p ( us ) 0.997 (148 dots) 0.578 (80 dots) h-active ( us ) 12.929 (1920 dots) 13.863 (1920 dots) h-f-p ( u...
Page 17: Monitor Block Diagram
5 5 4 4 3 3 2 2 1 1 d d c c b b a a hdmi_input hdmi_iic scaler rtd2482rd dvi_input d_sub15_input(r/g/b/hs/vs/sog) dvi-d d-sub15 eeprom edid 24c02 eeprom edid 24c02 dvi_iic d-sub15_iic to panel panel conneter ldo to 3.3v ldo to 1.2v 5dvcc v33s v12s speaker audio amp apa2069s audio output eeprom 24c16...
Page 18: Pcb Conductor View
Pcb conductor view button board.
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Main board.
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Power board.
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Arm board top-side.
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Arm board bot-side.
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Camera l-board top-side.
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Camera l-board bot-side.
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Camera r-board top-side.
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Camera r-board bot-side.
Page 27: Chapter 2
Chapter 2 operating instructions front panel definition this section defines the front panel user interface for led indictor and key function. Key definition: there are four keys defined in this system and described bellows. Z adjusting display settings z press e+power key to enter the factory mode....
Page 28
8 osd options osd menu focus: this removes any horizontal distortion and makes the picture clear and sharp. Clock: if there are any vertical stripes seen on the background of the screen, this renders them less noticeable by minimizing their size. It also changes the size of the horizontal screen. H-...
Page 29
Language for asia: select the osd menu language. Select from english, german, spanish, simplified chinese, traditional chinese, french, italian, and japanese. Osd settings: this changes the position of the osd window on the screen and the staying time. Input signal: select either analog input or dig...
Page 30
This page only be visible in factory mode r,g,b offset : adjust current rgb cut off level r,g,b gain : adjust current rgb driver value. Spread : adjust chip set internal frequency spread effect for emi testing. This page only be visible in factory mode auto burn : use the chip set internal pattern f...
Page 31: Led Definition
Led definition the system equips one dual color (blue/amber) led to indict system status and defined as bellows: logo: when the monitor is power on, the logo will be showed in the center, and disappear slowly. How to optimize the dos-mode plug and play plug & play ddc2b feature this monitor is equip...
Page 32
Signal. This monitor meets the green monitor standards as set by the video electronics standards association(vesa) and/or the united states environmental protection agency (epa) and the swedish confederation employees (nutek). This feature is designed to conserve electrical energy by reducing power ...
Page 33: Chapter 3
Chapter 3 machine disassembly this chapter contains step-by-step procedures on how to disassemble the monitor for maintenance and trouble shooting note: 1. The screws for the different components vary in size. During the disassembly process, group the screws with the corresponding to avoid mismatch ...
Page 34
Rear view: top view:.
Page 35
Side view: (unit: mm).
Page 36: Disassemble Procedure
Disassemble procedure 1.Remove 4pcs screws from stand neck and take off it. 2.Take off the screw and separate the base and stand. 3. Remove 1pcs screw for back cover and take off back cover. 4.Take off the lamp cable from power board. 5.Take off the 1pcs yellow type for button/b cable and speaker ca...
Page 37
7. Take off the al-foil for lvds cable and shielding. 8. Take off the yellow type for lvds connector . 9.Take off the lvds cable from panel. 10. Remove 1pcs of al-foil and 2pcs of yellow type for camera cable l&r and take off the camera cable. 11. Remove 1pcs yellow type for button/b cable. 12.Remov...
Page 38
13. Take off button/b from bezel and take off bezel from panel. 14.Take off button/b cable from button/b. 15.Remove total 4pcs of screw for bkt-l&r. 16.Remove 5pcs screws for the dvi,vga,hdmi joint. 17.Remove 9pcs screws for pcba and take off of them from shielding. 18.Disconnet the m/b topower/b ca...
Page 39: Chapter 4
1. No power no power check cn1 +5v yes change power board no check u1=3.3v q7,q8,q9,q13= 1.8v==1.8v change u1,q7,q8,q9, q13 no check short of main board no yes check y1=24mhz no change y1 yes check u3 pin 15,16 clock no change u3 ru software isp change u3 yes check u3 pin 24 level change u3 no check...
Page 40
2. Missing color missing color check vga cable yes change cable no check r70~r80 change m/b no yes check cn8 lvds signal no change u7 or cn8 cable or panel yes check osd r/g/b gain no adjustment r/g/b color change panel yes.
Page 41
3. Always show “no signel” “no signel” check vga cable yes change cable no vga check r70~r80,c2 9,c30 change m/b no change m/b.
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4. No touch function “no touch function” check internal ccd cable yes change cable no change arm module or ccd module.
Page 43
Rtd tool only isp basic operations before write 1. Please connect lpt cord to pc lpt port. 2. The correct connection isp tool to lpt cord as below: when write bios, need connect vga cord to isp tool double click “rtdtool only isp” procedure。.
Page 44
Pop out the follow operation surface click 64k, choose the first bios file (bios file is chosen from the local hard disk).
Page 45
Click 64k~96k,choose the second bios file（the first and the second files are saved together） the properties of setup files: “main” means the main writing file. “second” means the second writing file. “both” means both files writing together. “1 to 4 writer” means 4pcs main boards writing together at...
Page 46
“auto” means the pc writing automatically. “erase” means procedure erased the former bios of monitor. When write acer model bios, if two files used, set up the file properties as fellow: 1. Within 64k option, choose the bios file without “ext”; 2. Within 64k~~96k option, choose the bios file with “e...
Page 47
Before writing, please make sure that the monitor must be turned on. During writing, it can’t work if power cutting off, and vga cord falling off after writing ok, it will display “crc ok”. Notices: when writing was interrupted, the message will show “mcu link error”. Analysis: check: 1. Whether the...
Page 48: Chapter 5
Chapter 5 connector information phone jack stereo pin1. Ac power cord: cee22 typed connector pin2. Audio cable pin3. Audio: line-in receptacle 15 pin mini d-sub connector the pin assignment of the 15 pin mini d-sub connector / cable is as follows: pin signal 1 red 2 green 3 blue 4 no pin 5 detection...
Page 49
Dvi-d connector the pin assignment of the 24 pin dvi-d connector / cable is as follows: pin signal 1 tmds data2- 2 tmds data2+ 3 tmds data2 shield 4 nc 5 nc 6 ddc clock 7 ddc data 8 not connected 9 tmds data1- 10 tmds data1+ 11 tmds data1 shield 12 nc 13 nc 14 +5v 15 detection (return for +5 v and h...
Page 50
Hdmi connector the pin assignment of the 14 pin hdmi connector / cable is as follows pinout of hdmi connector: 1 tmds data 2+ 11 tmds clk shield 2 tmds data 2 shield 12 tmds clk - 3 tmds data 2- 13 cec 4 tmds data 1+ 14 no connect 5 tmds data 1 shield 15 scl 6 tmds data1- 16 sda 7 tmds data 0+ 17 gr...
Page 51: Chapter 6
Chapter 6 fru (field replaceable unit) list this chapter gives you the fru (field replaceable unit) listing in global configurations of t230h. Refer to this chapter whenever ordering for parts to repair or for rma (return merchandise authorization). Note: please note when ordering fru parts, that yo...
Page 52
Exploded drawing.
Page 53
Item part number part description unit item part number part description unit 1 34wct9lb020 wct9-m1 lcd bezel sub assy(otm) 1 17 ddw610cg009 wire assy(6/6p f/f 10cm p2.54/2.54)gle 1 2 23w0t9bb004 w0t9-a1 button/b assy 1 18 ddwa407g008 wire assy(10p/10p; f/f 40cm p2/1.5)gle 1 3 atcwct9m107 wct9-m1 ca...
Page 54
Fru list category part name acer part no. Button board w0t9-a1 button/b assy 55.Le80e.001 power board aip-0191a pi 55w 4l(175*140,w/o sw)aip-0191a 55.Lhs0e.001 main board wct9-m1 m/b assy(dual+a+hdmi rtd2482rd) 55.Lhs0e.002 lcd panel samsung ltm230ht01 lcd 23"ltm230ht01(1920*1080,5ms)acer con lk.230...
Page 55
Fru list category part name acer part no. Stand assy stand kit assy wct9- m1(knwct902,r3a)otm 60.Lhs0e.007 base assy base kit assy wct9- m1(knwct903,r3a)otm 60.Lhs0e.008 pcb shielding wct9-m1 pcb shielding assy(otm) 60.Lhs0e.009 hinge cover-l hinge cover-l wct9- m1(ebwct911,r3a)otm 60.Lhs0e.002 hing...
Page 56
Fru list category part name acer part no. Bracket -l bkt-l wct9-m1(fbwct906,r3a)otm 60.Lhs0e.004 speaker assy speaker(4,2w,62.3*16*11)l22,r44 p2 gp 23.Lfr0e.001.
Page 57: Chapter 7
5 5 4 4 3 3 2 2 1 1 d d c c b b a a amber auto menu green power e color right left title size document number rev date: sheet of key pad 3 3 wednesday, october 15, 2008 b3a title size document number rev date: sheet of key pad 3 3 wednesday, october 15, 2008 b3a title size document number rev date: ...
Page 58
A a b b c c d d e e 4 4 3 3 2 2 1 1 hd5v hdmi_ckk+ hdmi_22+ hdmi_11+ hdmi_11- hdmi_00+ hdmi_00- hd5v hdmi_sda hdmi_scl hdmi_11+ hdmi_22+ hdmi_00+ hdmi_ckk+ hdmi_00- hdmi_11- hdmi_22- hdmi_ckk- r_line l_line pc1_r_o pc1_l_o pc1_r_o pc1_l_o hdmi_ckk- hdmi_22- hd5v hd5v 5dvcc cec hdmi_power_det hdmi_hd...
Page 59
5 5 4 4 3 3 2 2 1 1 d d c c b b a a in-v blue+in in-h red+in bus_power ddc_scl in-h ddc2_scl ddc2_sda in-v ddc2_scl ddc2_sda ddc_scl red+in green+in blue+in in-h in-v green-in green+in red-in dgnd ddc_sda blue-in ddc_sda ddc2_sda ddc2_scl ddc_scl ddc_sda dsub_5v hot_plug tx00- tx00+ txcc+ txcc- tx11...
Page 60
5 5 4 4 3 3 2 2 1 1 d d c c b b a a tx0- tx1+ tx1- tx0+ tx2+ txc- tx2- txc+ eesda eescl eesda sdout clk ce sdin led_r led_g ce xi ddc2_sda ddc2_scl hdmi_scl hdmi_sda xo hdcp_scl hdcp_scl hdcp_scl hdcp_scl hdcp_scl hdcp_scl hdcp_scl hdcp_scl hdcp_scl hdcp_scl hdcp_scl hdcp_scl hdcp_scl hdcp_scl b1- g...
Page 61
5 5 4 4 3 3 2 2 1 1 d d c c b b a a p27 p26 rxec+ rxec- rxe3- p27 p26 rxo0- rxo2- panel_vcc rxe2+ rxe1+ rxe3+ rxo3- rxo0+ rxe0- rxe1- rxo2+ rxo3+ rxoc+ rxo1- dgnd dgnd rxo1+ rxoc- rxe0+ rxe2- dgnd dgnd rxe2- rxe3+ rxo2+ rxo3+ rxo3- panel_vcc rxoc+ rxe0+ rxo2- rxec- rxe3- rxo1- rxe1+ rxe1- rxo0- rxoc...
Page 62
5 5 4 4 3 3 2 2 1 1 d d c c b b a a 5dvcc v12s v33s 5dv v33s v33s bl_adj bl_en dsub_5v hd5v bus_power title size document number rev date: sheet of power 8 9 wednesday, may 20, 2009 title size document number rev date: sheet of power 8 9 wednesday, may 20, 2009 title size document number rev date: s...
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5 5 4 4 3 3 2 2 1 1 d d c c b b a a vol vol_adj se_btl audio_r audio_l se_btl shutdown shutdown vol vdd 5dv agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd vdd vdd agnd vdd vdd agnd agnd agnd agnd agnd audio_r audio_l audio_en volume audio_pwr title size document number rev dat...
Page 64
Power board_1.
Page 65
Power board_2.
Page 66
5 5 4 4 3 3 2 2 1 1 d d c c b b a a camera l camera r sensor pas6312 usb bridge pap7701 sensor pas6312 usb bridge pap7701 usb signal usb signal isp1760 memory bus arm9 lpc3230 spi usb bridge max3420 usb bus to pc nor flash jtag connector dc- dc power 5v to 3.3v dc- dc power 5v to 1.2v usb connector ...
Page 67
5 5 4 4 3 3 2 2 1 1 d d c c b b a a dp1 dm1 oc1_n psw1_n dp2 dm2 oc2_n psw2_n pwr_usb2 oc2_n pwr_usb1 oc1_n dp1_i dm1_i psw2_n psw1_n a[15:0] a15 a14 a13 a12 a11 a10 a9 a8 a7 a6 a5 a4 a3 a2 a1 a0 data31 data30 data29 data28 data27 data26 data25 data24 data23 data22 data21 data20 data19 data18 data17...
Page 68
5 5 4 4 3 3 2 2 1 1 d d c c b b a a r e s e t scl sda data[0:31] data0 data16 data15 data31 data14 data30 data13 data29 data12 data11 data28 data27 data10 data26 data9 data25 data8 data24 data7 data23 data6 data22 data5 data21 data4 data20 data3 data19 data2 data18 data1 data17 a0 a1 a2 a3 a4 a5 a6 ...
Page 69
5 5 4 4 3 3 2 2 1 1 d d c c b b a a a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 a11 a12 a13 a14 a15 a16 a17 a18 data16 data31 data30 data29 data28 data27 data26 data25 data24 data23 data22 data21 data20 data19 data18 data17 data[16:31] wr_n oe_n cs0 flash_reset wp# wp# wr_n oe_n cs0 flash_reset data[0:15] dat...
Page 70
5 5 4 4 3 3 2 2 1 1 d d c c b b a a usbi_d- usbi_d+ usb_d- usb_d+ sck 3 miso 3 mosi 3 ssel 3 int 3 3.3v 3.3v 3.3v 3.3v vbus title size document number rev date: sheet of quanta computer inc. Project : tq1 arm9_23 1b max3420 b 5 7 wednesday, february 25, 2009 tq1 title size document number rev date: ...
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5 5 4 4 3 3 2 2 1 1 d d c c b b a a 3.3v p5v p5v +5v 1.2v p5v +5v vbus p5v title size document number rev date: sheet of quanta computer inc. Project : tq1 arm9_23 1b power control custom 6 7 wednesday, february 25, 2009 tq1 title size document number rev date: sheet of quanta computer inc. Project ...
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5 5 4 4 3 3 2 2 1 1 d d c c b b a a 3.3v 3.3v 3.3v 3.3v 1.2v 1.2v 1.2v 1.2v 3.3v 1.2v title size document number rev date: sheet of quanta computer inc. Project : tq1 arm9_23 1b lpc3230_power b 7 7 wednesday, february 25, 2009 tq1 title size document number rev date: sheet of quanta computer inc. Pr...
Page 73
5 5 4 4 3 3 2 2 1 1 d d c c b b a a vsync 2,3 +5v p3v3 p3v3 size document number rev date: sheet of project ! !"#$"%&'()!$*+%,#-. !"#$"%&'()!$*+%,#-. !"#$"%&'()!$*+%,#-. !"#$"%&'()!$*+%,#-. Ir led 3a 1 3 saturday, june 06, 2009 size document number rev date: sheet of project ! !"#$"%&'()!$*+%,#-. !"...
Page 74
5 5 4 4 3 3 2 2 1 1 d d c c b b a a sen_reset scl sysclk v d d a y p x c lk h s y n c v s y n c v d d d csb sda hsync px0 px2 px1 px3 px4 px5 px6 px7 sysclk csb sda scl pxclk vsync px6 px7 p x 5 p x 4 p x 3 p x 2 p x 1 p x 0 sysclk 3 hsync 3 px0 3 px1 3 px2 3 px3 3 px4 3 px5 3 px6 3 px7 3 scl 3 csb ...
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5 5 4 4 3 3 2 2 1 1 d d c c b b a a vsync dm e p r _ s o dp csb vdd18k e p r _ s i vdd33a_hsrt v d d 3 3 a _ h s r t epr_sck vdd18k gpio6 v d d 3 3 a _ h s r t px3 px5 px7 px2 px4 px6 px1 px0x vdd5md sysclk sysclk epr_csb scl sda hsync epr_so epr_hold# s d a epr_sck wp# epr_si epr_hold# s c l epr_so...
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5 5 4 4 3 3 2 2 1 1 d d c c b b a a vsync 2,3 +5v p3v3 p3v3 size document number rev date: sheet of project ! !"#$"%&'()!$*+%,#-. !"#$"%&'()!$*+%,#-. !"#$"%&'()!$*+%,#-. !"#$"%&'()!$*+%,#-. Ir led 3a 1 3 saturday, june 06, 2009 size document number rev date: sheet of project ! !"#$"%&'()!$*+%,#-. !"...
Page 77
5 5 4 4 3 3 2 2 1 1 d d c c b b a a sen_reset scl sysclk v d d a y p x c lk h s y n c v s y n c v d d d csb sda hsync px0 px2 px1 px3 px4 px5 px6 px7 sysclk csb sda scl pxclk vsync px6 px7 p x 5 p x 4 p x 3 p x 2 p x 1 p x 0 sysclk 3 hsync 3 px0 3 px1 3 px2 3 px3 3 px4 3 px5 3 px6 3 px7 3 scl 3 csb ...
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5 5 4 4 3 3 2 2 1 1 d d c c b b a a vsync dm e p r _ s o dp csb vdd18k e p r _ s i vdd33a_hsrt v d d 3 3 a _ h s r t epr_sck vdd18k gpio6 v d d 3 3 a _ h s r t px3 px5 px7 px2 px4 px6 px1 px0x vdd5md sysclk sysclk epr_csb scl sda hsync epr_so epr_hold# s d a epr_sck wp# epr_si epr_hold# s c l epr_so...