Page 2 - Go to cover page
Product Announcement: This product is certificated to meet RoHS Directive and Lead-Free produced definition. Using approved critical components only is recommended when the situation to replace defective parts. Vender assumes no liability express or implied, arising out of any unauthorized modificat...
Page 3 - Product Specification
1. Product Specification The LCD monitor consists of an interface board, a power board and inverter board, a function key board. T h e i n t e r f a c e b o a r d w i l l h o u s e t h e f l a t p a n e l c o n t r o l l o g i c , b r i g h t n e s s c o n t r o l l o g i c , a u d i o f u n c t i o...
Page 5 - ITEM
1. Product Specification (continued) 1.3.3 User Controls and Indicators 1.3.3.1 Power On / Off Switch The monitor shall have a power control switch visible and accessible on the front of the monitor . The switch shall be marked with icons per IEC 417 , # 5007 and # 5009.The switch shall interrupt th...
Page 6 - A n a l o g i n p u t ( V G A ) t r e a t s a l l t i m i n g s a s P C - t i m i n g s .
1. Product Specification (continued) PRESET PC TIMINGS (ANALOG AND DIGITAL INPUTS) A n a l o g i n p u t ( V G A ) t r e a t s a l l t i m i n g s a s P C - t i m i n g s . 1.3.5.3 Panel Timing and Interface The controller supplied with the monitor shall control all panel timing. This controller sha...
Page 8 - Non countable
1. Product Specification (continued) 1.4.5.4 Allowable Defects No cosmetic defects are allowed except those specified below. The conditions of visual inspections are as follows : For 23 series Viewing distance is to be approximately 35-50cm Ambient illumination is to be 300 to 700 lux. Viewing angle...
Page 9 - OSD Menu
2.1 MAIN OSD MENU a. Display OSD menu when user press “MENU” button on front bezel b. Layout as following figure 1-1 2 OSD Menu d . T h e d e f i n i t i o n o f s i z e a n d c o l o r f o r m a i n m e n u F i g u r e 1 - 2 c o l o r & s i z e d e f i n i t i o n f o r f u n c t i o n I c o n ...
Page 13 - . 1 P a c k i n g E x p l o d e d D i a g r a m
3 . 1 P a c k i n g E x p l o d e d D i a g r a m 3. Exploded Diagram 12 Go to cover page ACER H233H
Page 14 - . 2 P r o d u c t E x p l o d e d D i a g r a m
3 . 2 P r o d u c t E x p l o d e d D i a g r a m 3. Exploded Diagram (continued) 13 Go to cover page ACER H233H
Page 15 - FFC
Use a Phillips-head screwdriver screwed the No.1~2 screws till that interface board and bracket chassis base firmly attached. (No1~2 screw size=M3x6; Torque=9~10KGFxCM). Use a Phillips-head screwdriver screwed the No.1~4 screws till that power board and bracket chassis base firmly attached.(No1~3 sc...
Page 16 - Use a Hex-head screwdriver screwed the DVI and
Plug 2 lamp cables to the connectors of inverter board. Use a Hex-head screwdriver screwed the DVI and D-SUB connectors (No.1~4 Hex Nut screws Size=M3x8;Torque=4~6KGFxCM). Use a Phillips-head screwdriver screw 4 screws (No1~4 Screw Size=M3x6; Torque=2.5~3KGFxCM). Use a Phillips-head screwdriver scre...
Page 17 - o t
Use a Phillips-head screwdriver screwed the No.1(No1screw size=M3x4; Torque=5+/-1 KGFxCM). Connect the power key cable. Connect the power key board from front bezel, Use a Phillips-head screwdriver screwed the No.1~2 screws(No1~2 screw size=M2x3.3; Torque=1~1.5 KGFxCM). Fix with the OSD key board on...
Page 21 - DOWN; UP; Tu r n o v e r t h e L C D m o n i t o r ( s c r e e n f a c e d u p ) .
Put the dissembled monitor closed to by myself W edge your finger between the front bezel and the panel, then pry up on the front bezel to disengage the locking mechanism. Note: The dissemble method of front bezel is as the below photos description, although the photos from S9 to S13 are not suitabl...
Page 24 - . 1 N o d i s p l a y o f s c r e e n S c r e e n i s b l a c k c o l o r o f L E D i s a m b e r
Does OSM display when you push “MENU key. Yes No Proceed "No OSM display" section. Check if the sync signal from computer is output and if the video cable is connected normally. OK Proceed "checking the resolution change IC movement" section. NG Input the sync signal of computer, or ...
Page 25 - . 2 N o t h i n g d i s p l a y o n s c r e e n ( s c r e e n i s b l a c k , c o l o r o f L E D i s b l u e )
Is backlight lit? Refer "Checking the backlight unit" section" OK NG Does computer output RGB video signals? OK Check OSM menu is display on screen when you push the "MENU" key. Proceed "Abnormal sreen" dection" OK NG Check the video cable for failure. Check the host ...
Page 27 - . 3 C h e c k i n g t h e b a c k l i g h t u n i t
Is +22V supplied to inverter PWB ? (by the power board) OK NG Failure Point 1) Power board of Inverter part failure . Check the BKLT_EN signal of the DC input P301 pin 2 at TTL high level. OK NG Failure Point 1) printed wire broke between P301 pin2, R304 and I308 pin 101. 2) I308 is failure. Check t...
Page 28 - . 4 A b n o r m a l s c r e e n f o r V G A
Check the R, G, B video signal from computer input on P302 of D-sub connector. OK NG Failure Point 1) No R, G, B video signals output from host computer, check computer. 2) Video signal cable disconnection. Check the R, G, B input video signals on I308 pin25, 27, 30 respectively that their level is ...
Page 29 - . 5 A b n o r m a l s c r e e n ( F o r D V I a n d t h e s a m e f o r H D M I )
Check the DVI video signal from computer input on P303 of DVI connector. OK NG Failure Point 1) No DVI video signals output from hostcomputer, check computer.2) DVI Video signal cable disconnection. Check the DVI input video signals on I308 pin 12,13,14,15,16,17,18,19 respectively that differential ...
Page 30 - . 6 A b n o r m a l O S M d i s p l a y a d j u s t p r o b l e m
Check the input I2C signal whether is changed when pressed function keys on the P306 pin 4, 5 OK NG Failure Point 1) Function key wire disconnection.2) Function key wire is failure.3) Function key board is failure. Check the input I2C signal of I308 pin 50, 51 whether is changed when pressed functio...
Page 31 - . 7 A b n o r m a l p l u g a n d p l a y o p e r a t i o n f o r V G A
Confirm the host computer supplies DDC2B mode. OK NG Failure Point The host machine is not communicatiog in DDC2B mode. OK Check the output signal of serial data / clock on I308 pin 59, 58. OK NG Failure Point I308 is failure. Check the voltage on P302 pin 9 that is power DC 5 V. NG Failure Point Th...
Page 32 - . 8 A b n o r m a l p l u g a n d p l a y o p e r a t i o n ( F o r D V I a n d t h e s a m e f o r H D M I )
Confirm the host computersupplies DDC2B mode. OK NG Failure Point The host machine is not communicatiog in DDC2Bmode. OK Check the output signal of serial data / clock on I308 pin 122,121 OK NG Failure Point I308 is failure. Check the voltage on P303 pin14 that is power DC 5 V. OK NG Failure Point T...
Page 34 - . 1 0 C h e c k i n g t h e r e s o l u t i o n c h a n g e I C m o v e m e n t
Check +3.3V supply on I304 pin2. OK NG Proceed " Checking the DC/DC converter circuit" section. Check +1.2V supply on I305 pin 2. OK NG Proceed " Checking the DC/DC converter circuit" section. Check X301 27MHz clock input to I308 pin 127 and 128 at TTL level. OK NG Failure Point 1) P...
Page 35 - . 1 1 C h e c k i n g t h e D C / D C c o n v e r t e r c i r c u i t
Check the 5V is output from P301 pin 4,5,6. OK NG Failure Point 1) Power wire disconnection.2) Power board is failure. Check the 5V is input to I304 pin3. OK NG Failure Point 1) Printed wire broke between P301 pin 4,5,6 and I304 pin3. Check the 3.3V is output from I304 pin2, 4. Failure Point 1) I304...
Page 36 - Firmware Upgrade Process
6.2 Realtek F/W Configuration: Step-1 Launch the utility of “ ” DebugTool_V6.2.exe Step-3Select ISP type: Serial Flash Select ISP icon. Step-4 Follow up the red square indication Select P-flash and Auto C o n n e c t V G Ac a b l e b e t w e e nm o n i t o r a n d k i t C o n n e c t U S Ba n d V G ...
Page 38 - cedid; SS:MEANS SAMSUNG PANEL; USB CONNECTION; DVI CONNECTION; Writing EDID Process
cedid Writing EDID for VGA and DVI S1 Chose the folder:” X233H-H233H-VGA&DVI “ Double click “ Acer_1A1D_RLT.EXE “ S2 Select Model: Key in password”cedid” then select model which one you want to write EDID code that it depends on panel type. S1 Open EDID Write protection function Turn off the pow...
Page 39 - HDMI port’s; HDMI TRANSFER DVI CONNECTION
S3 Choose "WRITE" from menu then select "Scan S/N And Write EDID And Test DDC” S4 Key in series number in the input column and input 2 column Press write button after key in S/N S5 When EDID was written successfully that will show below message on the screen Entering Factory mole to let ...
Page 41 - PCB; Backl; Go; ACER
8. 8.1 BLOCK DIAGRAM BLOCK DIAGRAM AND SCHEMATIC PCB No. Scal er Flash ROM SST 25VF010A PMC 25LV010A DC DC- 5V 3 3V -. 33 V12 V .- . Power & Invertor Board AC 110 220V/ Input LVDS I308 I309 +5V I304 I305 & Brightness Inv On Off ,_ / P307 Audio EN VOLUME MUTE ,, Backl i ght Panel Con. P306 Ke...
Page 43 - GND; JWT
8.3 ACER _ _LCD_H233H SCHEMA TICS_INTERF ACE_BD_POWER 6832203800P01 PCB No. +5V GND TO263 TO252 GND BKLT ADJ _ STANDBY BKLT EN _ AUDIO EN _ MUTE VOLUME +5V +5V GND for USB model add R478 AUDIO EN _ BACKLIGHT EN _ BACKLIGHT EN _ BACKLIGHT ADJ _ AUDIO EN _ VOLUME MUTE MUTE USB EN _ BACKLIGHT ADJ _ on ...
Page 45 - DVI
_ 8.5 INTERF ACE_DVI & DDC INTERF ACE ACER_LCD_H233H SCHEMA TICS_ PCB No. 6832203800P01 DVI RX2 _- DVI RX0 _- DVI RXC _- DVI RX1 _+ DVI RXC _+ DVI RX1 _- DVI RX2 _+ DVI RX0 _+ DVI DETn _ DVI SDA _ DVI SCL _ DVI CONn _ DVI RX2 _+ DDC SCL DVI __ DDC SCL DVI __ DVI SDA _ DDC SDA DVI __ DDC SDA DVI ...
Page 46 - HDMI
_ 8.6 INTERF ACE_BD_HDMI ACER_LCD_H233H SCHEMA TICS_ PCB No. 6832203800P01 HDMI1 D0 _+ HDMI1 CK _- HDMI1 D0 _+ HDMI1 D0 _- HDMI1 D1 _- HDMI1 D1 _+ HDMI1 CK _- HDMI1 D2 _- HDMI SDA _ HDMI SCL _ HDMI SCL _ HDMI SDA _ HDMI1 D2 _+ HDMI1 D2 _- HDMI1 D1 _- HDMI1 CK _+ HDMI SCL _ HDMI SDA _ HDMI1 D2 _+ DDC...
Page 48 - INTERF
POWER ORANGE SDA GND SCL KEY Vin GND ATTN KEY2 KEY1 FOR H233 POWER KEY 4PIN and X233 KEY 6PIN GND FOR H233 OSD KEY 6PIN BLUE POWER ORANGE GND KEY2 BLUE KEY1 FOR V273 KEY 6PIN LVB0M LVB0P LVB3M LVBCKP LVB1M LVB1P LVBCKM LVB2P LVB2M LVA2P LVA0M LVB3P LVA0P LVA1M LVA1P LVA2M LVA0M LVB3P LVA2M LVB3M LVA...
Page 49 - SCL
_ 8.9 SCHEMA TICS _BD OSD KEY ACER_LCD_H233H _ PCB No. 6832203800P01 AUTO LEFT AUTO RIGHT MENU RIGHT GPIO LED/ LEFT BUTTON E BUTTON S2 INPUT INPUT E MENU GPIO5 D608/ ATTN GND KEY Vin SCL GND SDA 2When connecting the LEDs toGPIO pins the pin17 should ., . not be connected toground ofVCC 1When no conn...
Page 50 - LED
LED ORANGE_ LED WHITE_ POWER KEY LED BLUE_ KEY POWERn_ LED ORANGE_ C601 0 1uF 16V ._ CM0603 D604 MMSZ5232BS SOD323 S601 SM TACK SW2 -- 1 2 3 4 O B D601 LED SM LED C195K -- 1 2 3 4 D602 MMSZ5232BS SOD323 D603 NCMMSZ5232BS/ SOD323 P601 A1255WR0 4PS- 1 2 3 4 6 5 D605 NCPESD5V0U1BB/ SOD523 R601 1K1_% R0...
Page 51 - BOARD
8.11 ACER_LCD_H233H LAYOUTS_POWER BOARD _ POWER BOARD - BOTTOM SILK POWER BOARD - TOP SILK 12 34 56 7 8 9 1 0 11 1 2 1 3 12 34 56 7 8 9 1 0 11 1 2 1 3 A B C D E F G A B C D E F G Go tocover page 50 ACER H233H
