Acer WISTRON RB23WABAS Service Manual Download Page 51 | Manualshive

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Summary of Contents for WISTRON RB23WABAS

Page 1: ...iting EDID Procedure 37 Appendix III Spare Parts List Appendix IV Software Pack Model ID RB23WABAS Published by Wistron Corporation Printed in Taiwan All rights reserved Subject to modification 26th Nov 2008 DBG DPBU II DBG DPBU II Service ACER_LCD_H233H_SM081126V1 Safety Notice Any person attempting to service this chassis must familarize with the chassis and be aware of the necessary safety prec...

Page 2: ... It is recommended that service engineers should have repairing knowledge experience as well as appropriate product training per new model before performing the service procedures NOTICE To avoid electrical shocks the products should be connect to an authorized power cord and turn off the master power switch each time before removing the AC power cord To prevent the product away from water or expl...

Page 3: ...1920x1080 resolution TFT LCD Thin Film Transistor Liquid Crystal Display 16 7M color Hi FRC images are displayed on the panel Video input signals are analog RGB 0 7Vp p When the system is powered on previously stored screen parameters for a pre defined mode will be recalled if the operating mode is one of stored in memory 2213 factory timing mode This monitor operates normal by non interlaced mode...

Page 4: ...itiate the display of a horizontal line HS may be either active high or active low depending upon the timing The Vertical Sync VS TTL signal is used to initiate the display of a new frame VS may be either active high or active low depending on the timing 1 3 2 4 Sync Signal Levels The monitor must accept sync signals from both 3 3 and 5 volt TTL logic families The inputs shall sense a logic 0 when...

Page 5: ... may be saved as a user defined mode The monitor shall include all the preset video timings shown in the following page Please see Note 3 1 3 4 3 Mode Recognition Pull in The monitor shall recognize preset modes within a range of 1KHz whichever is less for horizontal and within 1Hz for vertical 1 3 4 4 User Display Modes In addition to the factory pre set video modes provisions shall be made to st...

Page 6: ...include a PLL A D converters LVDS transmitter and other circuitry necessary to perform its function The PLL shall be stable enough to ensure that a static image from the CPU is placed in the same physical location on the flat panel in each frame 1 3 5 2 Video Stretching The monitor shall contain provisions to stretch the video signal so that an input signal from the computer in any resolution smal...

Page 7: ...with a 3 hardness value 1 4 4 Backlight Requirements 1 4 4 1 General Requirements The backlight assembly shall be designed to support field replacement at the customer site or authorized service center The lamps shall have a continuous operating life of at least 50 000 hours at 25 The operating life is defined as having ended when the illumination of light has reached 50 of the initial value The l...

Page 8: ...Spec D ark S p o ts L in es S p o ts o r lin es th at ap p ear d ark in th e d isp lay p attern s an d are u su ally th e resu lt o f co n tam in atio n D efects d o n o t v ary in size o r in ten sity co n trast w h en co n trast v o ltag e is v aried C o n trast v ariatio n can b e ach iev ed th ro u g h th e u se o f v aryin g g ray sh ad e p attern s B rig h t S p o ts L in es S p o ts o r lin...

Page 9: ...lowing figure 1 1 2 OSD Menu d The definition of size and color for main menu Figure 1 2 color size definition for function Icons The description for control function Function Status Picture OSD Setup Information Non Focus Focus Focus on Item page e Icons instruction Go to cover page 8 ACER H233H ...

Page 10: ...nagement Acer eColor management a Display acer eColor Management OSD when user press e button on the front bezel or trigger this function in OSD menu picture page b Layout as following figure 1 8 c The definition of color size for the acer eColor management OSD d Icons introduction Scenario mode Mode Contrast OSD Brightness OSD User mode User defined User defined Text mode 50 slope 1 0 44 61 Stand...

Page 11: ...ected Key Function description Menu Auto e input Close volume OSD Volume down Volume up c The definition of color size for the volume management OSD and file LED Light Effect in Soft key Power ON Normal operation Power turn off Stand by then Input Signal Normal Operation then remove Signal Appendix Multiple language Go to cover page 10 ACER H233H 2 OSD Manu continued ...

Page 12: ...2 OSD Manu continued 11 Go to cover page ACER H233H ...

Page 13: ...3 1 Packing Exploded Diagram 3 Exploded Diagram 12 Go to cover page ACER H233H ...

Page 14: ...3 2 Product Exploded Diagram 3 Exploded Diagram continued 13 Go to cover page ACER H233H ...

Page 15: ...301 into interface board P805 Connect speak cable into interface board P001 Connect the FFC cable into interface board Connect the power key cable P601 into interface board P309 Turn the monitor faced down and put it on the bracket chassis module till both parts firmly Connect FFC cable to LCD panel There are two locks over here when plugging in should be noticed Fix the speaker and speaker cable ...

Page 16: ...illips head screwdriver screw 3 screws No1 2 Screw Size M3x10 No3 screw size M3 6 Torque 4 6KGFxCM Stick the safety tape Connect OSD key cable into interface board P306 Take out the USB cable to through out the hole Connect the USB cable Use a Phillips head screwdriver screwed the No 1 2 No1 2 screw size M3x6 Torque 9 10 KGFxCM 4 Assembly and Disassembly Procedures continued S12 S11 S7 S9 S8 S10 S...

Page 17: ...w size M2x3 3 Torque 1 1 5 KGFxCM Fix with the OSD key board on the front bezel Put a ear over n he ssembled nit nd ress on force echanisms ocked nd irmly attached r c o t a u a p m l a f Use a Phillips head screwdriver screw 1 screw No1 Screw Size M3x10 Torque 7 5 9 5KGFxCM Stick the power key cable with tape 1 1 2 1 2 4 3 1 2 3 4 1 S19 S18 S17 S16 S15 S14 4 Assembly and Disassembly Procedures 16...

Page 18: ... 4 Stick POP label on the correct position the same as below photo Take a LDPE EPE bag to cover the LCD monitor Stick a screen card on the front bezel with two tapes Assemble the hinge cover into both two sides Take two cushion foams one is held the top side of LCD monitor and another is held the bottom side S25 S23 S24 S22 S21 S20 17 Go to cover page ACER H233H ...

Page 19: ...power cable on specific positions as photo below Move previous assembled parts into the carton then stick Vista and feature label on the carton then packing the carton S27 S26 4 Assembly and Disassembly Procedures continued 18 Go to cover page ACER H233H ...

Page 20: ...tor card then turn over the LCD monitor screen faced down Take off two cushion foams Take out all accessories including D SUB cable power cable DVI cables user s manual and packing material from the carton Note It depends on whether users returning the accessories Open the carton with a proper tool S6 S5 S4 S3 S2 S1 S7 4 2 Disassembly procedures 1 2 3 4 FEATURE LABEL VISTA LABEL Use a Phillips hea...

Page 21: ... Using properly force to let the locking mechanism of front bezel and rear cover separated Separating all of the locking mechanism of the front bezel in turn S8 S13 S12 DOW N SIDE LEFT SIDE RIGHT SIDE UP SIDE S9 S11 S10 Hold the one upside corner of the front bezel after separating the upside of the front bezel Using properly force to pull up front bezel that will let the locking mechanism of left...

Page 22: ... Torque 1 1 5 KGFxCM Use a Phillips head screwdriver unscrewed the No 1 3 screws to release the power connector and HDMI connector No1 2 screw size M3x10 No 3 screw size M3x6 Torque 4 6 KGFxCM Use a Phillips head screwdriver unscrewed the No 1 No1screw size M3x4 Torque 5 1 KGFxCM Unplug the USB cable and OSD key cable Use a Phillips head screwdriver unscrewed the No 1 2 No1 2screw size M3x6 Torque...

Page 23: ...nose pliers to separate plastic hook Use a Phillips head screwdriver unscrewed the No 1 4 screws No1 4 screw size M3x5 Torque 2 5 3 KGFxCM Disconnect the lamps cable Take out lamp cables right through the No 1 2 square holes and separate the bracket chassis module and LCD panel apart Disconnect the FFC cable to the connector of panel Use finger to push the lock according to arrow direction then ta...

Page 24: ...checking the resolution change IC movement section NG Input the sync signal of computer or change the cable When a signal isn t being inputted it is indicated with No Signal Input it is indicated with Out Of Range at the time of the frequency that it can t be distinguished 5 1 No display of screen Screen is black color of LED is amber 23 Go to cover page 5 Troubleshooting ACER H233H ...

Page 25: ...k the host for output signal is all black or not 1 Change pattern of video signal output on the host 2 Reconnect the video cable 3 Change the video cable NG Check if the LCD video signal cable is connected between the Interface Board and LCD module OK Next Page NG Failure Point The LCD video signal cable is disconnected 5 2 Nothing display on screen screen is black color of LED is blue Go to cover...

Page 26: ...LVDS cable broke between P307 and LCD module 2 LCD module is failure NG Proceed Checking the DC DC converter circuit section NG Check the I301 pin2 if voltage is 5V Failure Point 1 FB301 is open OK Check the I305 pin2 if voltage is 1 2V OK NG Proceed Checking the DC DC converter circuit section Check the input voltage level whether was changed when pressed function keys on the P309 pin1 Failure Po...

Page 27: ...d wire broke between P301 pin2 R304 and I308 pin 101 2 I308 is failure Check the BKLT_ADJ signal of the input P301 pin3 from I308 pin102 is a PWM signal OK NG Failure Point 1 printed wire broke between P301 pin3 R501 and I308 pin102 Failure Point 1 Back light unit of LCD module is failure 2 Inverter Cable disconnect 5 3 Checking the back light unit Go to cover page 26 5 Troubleshooting continued A...

Page 28: ...p p Failure Point In the case of the Red signal A Green and Blue signal is the same path too 1 Printed wire broke between P302 pin1 and I308 pin30 2 Video cable is failure 3 FB315 FB306 R327 C315 is open 4 R326 C329 is short or open NG OK Check all LVDS signals being output to P307 from I308 Failure Point Printed wire broke between I308 and P307 NG OK Proceed Checking the resolution change IC move...

Page 29: ...nput commond mode voltage is 3 3V Failure Point In the case of the DVI_RX0 signal A DVI_RX1 DVI_RX2 and DVI_RXC signal is the same path too 1 Printed wire broke between P303 pin 17 18 and I308 pin 12 13 2 Video cable is failure 3 R350 R355 open NG OK Check all LVDS signals being output to P307 from I308 Failure Point Printed wire broke between I308 and P303 NG OK Proceed Checking the resolution ch...

Page 30: ...failure Check the input I2C signal of I308 pin 50 51 whether is changed when pressed function keys OK NG Failure Point 1 Printed wire broke among P306 pin4 R368 and I308 pin51 2 Printed wire broke among P306 pin5 R362 and I308 pin50 3 C393 C394 is short 4 D352 D353 is short Failure Point I308 is failure 5 6 Abnormal OSM display adjust problem 29 Go to cover page 5 Troubleshooting continued ACER H2...

Page 31: ...at is power DC 5 V NG Failure Point TheVideo cable is failure Check the signal on P302 pin12 15 that is serial data clock signal OK NG Failure Point The Video cable is failure Failure Point 1 Printed wire broke among I308 pin58 59 R429 R434 R320 R321 and P302 pin12 15 2 I308 maybe failure 3 R314 R315 is open 4 D306 or D308 or C320 or C321 is shorted 5 7 Abnormal plug and play operation for VGA Go ...

Page 32: ... the voltage on P303 pin 7 6 that is serial data clock signal OK NG Failure Point The Video cable is failure Failure Point 1 Printed wire broke between I308 pin121 122 R410 R414 R344 R345 and P303 pin7 6 2 I308 maybe failure 3 R338 R339 is open 4 D320 or D321 or C339 or C342 is shorted Check the voltage on P303 pin 16 that is 4 5V NG Failure Point 1 Printed wire broke between P303 pin 14 and pin 1...

Page 33: ...ing the resolution change IC movement section Check the vertical sync signal on P302 pin14 TTL level OK NG Failure Point Video cable is failure Check the horizontal sync signal on I308 pin21 TTL level OK NG Failure Point 1 Printed wire broke between P302 pin14 and I308 pin21 2 FB305 or R331 is open 3 D310 R318 or C313 is short Failure Point Proceed Checking the resolution change IC movement sectio...

Page 34: ...in 127 128 2 C351 C352 is short or open 3 R507 is open 4 X301 failure Check I308 pin 125 RSTB signal is high level at normal operation OK Check I308 pin 115 116 117 118 SPI signal OK NG Failure Point 1 Printed wire broke between I308 pin 115 116 117 118 and I309 pin 1 2 5 6 2 I309 is failure Failure Point I308 failure Failure Point 1 Printer wire broke between I308 pin 125 and R437 3 I308 is failu...

Page 35: ...put from I304 pin2 4 Failure Point 1 I304 is failure 2 C306 or C308 short OK NG Check the 3 3V is input to I305 pin3 OK NG Failure Point 1 Printed wire broke between I304 pin2 4 and I305 pin3 Check the 1 2V is output from I305 pin2 4 Failure Point 1 I305 is failure 2 C310 or C311 short OK NG Failure Point 1 FB311 or FB312 or FB319 or FB320 is open 5 11 Checking the DC DC converter circuit Go to co...

Page 36: ...ash and Auto Connect VGA cable between monitor and kit Connect USB and VGA cable between PC and kit Step 2 Select USB If it shows No USB Device there is a problems with communication you should confirm your USB device whether be detected by your PC device management or reconnect the USB cable again 6 1 Hardware Configuration 35 Go to cover page 6 Firmware Upgrade Process ACER H233H ...

Page 37: ...233H_EMEA H01 hex will be loaded in 64 96 automatically Check firmware version Turn off the power then press force on POWER and E button at the same time then press on MENU button to enter factory mode Note Please pay attention Don t change any parameter which is measured by precise machine before shipping out Go to cover page 36 6 Firmware Upgrade Process continued ACER H233H ...

Page 38: ...be off Note Please pay attention Don t change any parameter which is measured by precise machine before shipping out SS MEANSSAMSUNGPANEL Hardware Configuration 1 Connect the PRINTER PLUG of DDC FIXTURE with the printer port of Desktop PC 2 Plug USB A PLUG of DDC FIXTURE to USB socket of Desktop PC 3 Use DVI cable connect to the DVI socket of monitor of DDC FIXTURE 4 Take a video cable then connec...

Page 39: ...e as writing VGA and DVI process Hardware Configuration Writing EDID for 1 Connect the PRINTER PLUG of DDC FIXTURE with the printer port of Desktop PC 2 Plug USB A PLUG of DDC FIXTURE to USB socket of Desktop PC 3 Use DVI transfer HDMI cable connect between of the DVI EXTENDING SOCKET and Monitor Writing EDID for HDMI port 4 Take a video cable then connect the D SUB PLUG and the D sub socket of mo...

Page 40: ...ake a video cable then connect the D SUB PLUG and the D sub socket of monitor 5 Re confirm all the connectors are connected well Entering Factory mole to let EDID WP be off Writing EDID procedure for S1 Choose the folder X233H H233H 1A1H Double click Acer_1A1H_RLT The writing process same as writing VGA and DVI process 1A1H S5 When EDID was written successfully that will show below message on the ...

Page 41: ...DDC DAT _ _ P302 R G B Hs Vs TMDS DDC 24LC02B I303 DVI DDC SCL _ _ DVI DDC DAT _ _ P303 DVI D Anal og Vi deo Input Di gi tal Vi deo Input RTD2482 RTD2482D RTD2482RD AUDIO Input XTAL 27MHZ X301 HDMI P305 HDMI Input I306 DDC 24LC02B HDMI DDC SCL _ _ HDMI DDC DAT _ _ TMDS P309 Key Con OSD KEY BD POWER KEY BD 24LC16B NVRAM I307 P301 Power Con USB EN P308 Audio LCD Modul e ACER H233H Block digram USB B...

Page 42: ...DA TIMER DIM NC ENA LCT SSTCMP CT GNDA DRV2 PGND C005 1uF D117 1N4148 2 1 R101 10K R830 68K 0805 Q806 3904 2 1 3 R119 15K F801 3 15AL250V R815 4 7K MOF R133 10 R140 1K 0805 I803 AP431 R825 1K R103 18K D116 1N4148 2 1 J007 JUMP WIRE R125 3M 1 4W Q101 2N7002 1 2 3 L004 PBY201209T 121Y N R811 0 27 2W R131 10 D112 1N4148 2 1 P003 JWT A2001WV2 07 6 5 4 3 2 1 7 C817 NC R004 4 75K 0805 C161 220P C013 22n...

Page 43: ...F 16V _ CM0402 R302 4K7 5 _ R0402 C306 100uF 16V _ EC25 63 R402 0 5 _ R0402 C377 0 1uF 16V _ CM0402 C304 0 1uF 16V _ CM0402 C308 0 1uF 16V _ CM0402 R403 0 5 _ R0402 R497 0 5 _ R0402 Hole1 Case GND _ MH38R75 1 2 6 8 7 5 4 3 I304 AP1084K33L TO 263 GOI 1 2 3 4 VSS VOUT VIN TAB R478 NC 0K 5 _ R0402 D347 NC DFLS240L Power DI123 P301 JWT A2001WV2 12 CN20 12 1 2 3 4 5 6 7 8 9 10 11 12 R404 10K 5 _ R0402 ...

Page 44: ...8 470 1 _ R0402 C317 47nF 16V _ CM0402 FB308 SBK160808T 600Y S BEAD0603 D303 MMBD7000 SOT 23 3 1 2 R322 75 1 _ R0402 FB306 SBK160808T 600Y S BEAD0603 C318 47nF 16V _ CM0402 D308 MMSZ5232BS SOD323 C323 NC 0 1uF 16V _ CM0402 R321 47 1 _ R0402 C316 47nF 16V _ CM0402 C322 12pF 25V _ CM0402 C314 47nF 16V _ CM0402 D304 MMBD7000 SOT 23 3 1 2 C330 5pF CM0402 R331 100 1 _ R0402 C329 5pF CM0402 C324 0 1uF 1...

Page 45: ... I O 3 VCC I O 4 R461 NC 10K 5 _ R0402 R337 10K 5 _ R0402 I303 M24C02 WMN6T _ SOIC 8P 1 2 3 4 5 6 7 8 A0 A1 A2 GND SDA SCL WP VCC R349 10 5 _ R0402 R341 100 1 _ R0402 D320 MMSZ5232BS SOD323 C379 0 1uF 16V _ CM0402 R342 100 1 _ R0402 R467 NC 10K 5 _ R0402 D324 MMSZ5232BS SOD323 D323 NC MMSZ5232BS SOD323 R464 NC 10K 5 _ R0402 R336 10 5 _ R0402 C378 0 1uF 16V _ CM0402 D321 MMSZ5232BS SOD323 D325 BAT5...

Page 46: ...1 2 3 4 5 6 7 8 A0 A1 A2 VSS SDA SCL WP VCC R359 1K 5 _ R0402 P305 HDMI 19P _ HDMI DIP 19P 20 21 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 SHELL1 SHELL2 D2 D2 Shield D2 D1 D1 Shield D1 D0 D0 Shield D0 CK CK Shield CK CE Remote NC DDC CLK DDC DATA GND 5V HP DET R487 0 5 _ R0402 R358 100 1 _ R0402 D344 IP4223 CZ6 SOT23 6 1 2 3 4 5 6 I O 1 GND I O 2 I O 3 VCC I O 4 R473 10K 5 _ R0402 R475 10K 5...

Page 47: ...86 43 99 40 49 108 39 127 128 65 78 79 80 81 82 83 87 88 89 90 91 92 93 94 95 96 97 98 100 101 102 103 104 105 106 107 109 110 111 112 113 114 115 116 117 118 119 120 121 122 124 123 125 126 DP VDD TMDS VDD _ _ TMDS REXT _ LANE0P RX2P 0 _ LANE0N RX2N 0 _ LANE1P RX1P 0 _ LANE1N RX1N 0 _ LANE2P RX0P 0 _ LANE2N RX0N 0 _ LANE3P RXCP 0 _ LANE3N RXCN 0 _ DP GND TMDS GND _ _ LANE0P RX2P 1 _ LANE0N RX2N 1...

Page 48: ...3P3V Q308 MMBT3906 SM PNP P310 NC A POINT 6PIN DF100 6P 1 2 3 4 5 6 R360 330 5 _ R0402 R504 NC 100 1 _ R0402 R364 10K 5 _ R0402 D352 MMSZ5232BS SOD323 R370 330 5 _ R0402 R508 100 1 _ R0402 R367 4K7 5 _ R0402 C368 0 1uF 16V _ CM0402 C369 0 1uF 16V _ CM0402 R502 0 5 _ R0402 C393 47pF 25V _ CM0402 P309 A2001WV2 06 JWT _ _ CN20 6 1 2 3 4 5 6 R481 10K 5 _ R0402 R365 10K 5 _ R0402 R369 NC 4K7 5 _ R0402 ...

Page 49: ...VCC VCC TP601 TP604 R608 10 5 _ R0402 FB601 NC PBY201209T 170Y S BEAD0805 R614 33K 5 _ R0402 R615 47K 5 _ R0402 C605 0 1uF 16V _ CM0402 C602 1uF 10V _ CM0402 R610 10 5 _ R0402 TP602 TP605 D603 WHITE SM LED S270T D601 WHITE SM LED S270T R609 10 5 _ R0402 D605 WHITE SM LED S270T R601 10K 5 _ R0402 R606 10 5 _ R0402 D606 WHITE SM LED S270T TP606 R603 10 5 _ R0402 D609 WHITE SM LED S270T C604 1uF 10V ...

Page 50: ...W2 1 2 3 4 O B D601 LED SM LED C195K 1 2 3 4 D602 MMSZ5232BS SOD323 D603 NC MMSZ5232BS SOD323 P601 A1255WR0 4PS 1 2 3 4 6 5 D605 NC PESD5V0U1BB SOD523 R601 1K 1 _ R0603 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 11 12 13 A B C D E F G A B C D E F G Go to cover page 49 ACER H233H _ 8 10 SCHEMATICS _BD POWER KEY ACER_LCD_H233H_ ...

Page 51: ...11 ACER_LCD_H233H LAYOUTS_POWER BOARD _ POWER BOARD BOTTOM SILK POWER BOARD TOP SILK 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 11 12 13 A B C D E F G A B C D E F G Go to cover page 50 ACER H233H ...

Page 52: ...8 12 ACER_LCD_H233H LAYOUTS_INTERFACE BOARD _ 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 11 12 13 A B C D E F G A B C D E F G Go to cover page 51 ACER H233H ...

Page 53: ...ACER_LCD_H233H LAYOUTS_OSD KEY BOARD AND POWER KEY BOARD _ POWER KEY BOARD OSD KEY BOARD 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 11 12 13 A B C D E F G A B C D E F G Go to cover page 52 ACER H233H ...

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