Acer X193 X183H / X193HQ Service Guide
Acer X193 Manual
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- Acer X193 | X183H / X193HQ Service Guide - Page 1
ACER DBG DPBU II Service ACER_LCD_X193HQ_SM080904V1 Model ID:RA19WAANU Service Manual Table of Contents Important Safety Notice 01 01. Product Specification 02 02. OSD Menu 08 03. Exploded Diagram 10 04. Assembly and Disassembly Procedures 12 05. Troubleshooting 19 06. Firmware Upgrade - Acer X193 | X183H / X193HQ Service Guide - Page 2
Important Safety Notice ACER X193HQ 1 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 - Acer X193 | X183H / X193HQ Service Guide - Page 3
ACER X193HQ Go to cover page 1. Product Specification 1.1 SCOPE This document defines the design and performance requirements for a 19W inch diagonal , flat panel monitor .The display element shall be a WXGA(1366X768) resolution TFT-LCD 240V) Front OSD Factory User SPEC Analog H:31Hz~83Hz V:56Hz~ - Acer X193 | X183H / X193HQ Service Guide - Page 4
(continued) ACER X193HQ 3 Go to cover page Pin 0.1 V 75Ω to Ground Note 1) Schmitt-Triggers Input, Supported 3.3V device H(&V) sync output from PC V ideo Input Signal 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 - Acer X193 | X183H / X193HQ Service Guide - Page 5
4 ACER X193HQ Go to cover page 1. Product Specification (continued) 1.3.2.5 Sync Signal Loading TTL input loading shall be equivalent to one TTL input load. When logic 0 is asserted by a sync input , the maximum current source from any single monitor sync input to the driver is 1.6 mA .When - Acer X193 | X183H / X193HQ Service Guide - Page 6
ACER X193HQ 5 Go to cover page 1.3.4.3 Mode Recognition Pull-in The monitor monitor shall include a controller capable of converting the analog RGB signal from a standard SXGA resolution or any other component of the monitor. The LCD panel interface shall support the TFT standard. 1.3.6 DC - - Acer X193 | X183H / X193HQ Service Guide - Page 7
the front polarizer panel shall be covered with a coating 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 - Acer X193 | X183H / X193HQ Service Guide - Page 8
1. Product Specification (continued) ACER X193HQ 7 Go to cover page 1.4.5.5 Defect Terminology Table 3 gives the descriptive terms used in classifying defects. D ark by Lite-On will be reviewed by Lite-On as they on the LCD supplier's spec. Details refer to QA Inspection Spec. Average - Acer X193 | X183H / X193HQ Service Guide - Page 9
8 ACER X193HQ Go to cover page 2.1 MAIN OSD MENU Outline: 2 OSD Menu The description for control function: The description for control function: M a in M en u Ic o n Sub Menu Ic o n N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A Sub Menu - Acer X193 | X183H / X193HQ Service Guide - Page 10
2. OSD Manu (continued) ACER X193HQ 9 Go to cover page - Acer X193 | X183H / X193HQ Service Guide - Page 11
10 ACER X193HQ Go to cover page 3.1 Packing Exploded Diagram 3. Exploded Diagram - Acer X193 | X183H / X193HQ Service Guide - Page 12
3.2 Product Exploded Diagram 3. Exploded Diagram (continued) ACER X193HQ 11 Go to cover page - Acer X193 | X183H / X193HQ Service Guide - Page 13
12 ACER X193HQ Go to cover page 4. Assembly and Disassembly Procedures 4.1 Assembly procedures: M4x8; Torque=9~10KGFxCM). 1 2 Turn the monitor faced down and put it on the S5 bracket chassis module till both parts firmly Connect FFC cable to LCD panel. There are two locks over here - Acer X193 | X183H / X193HQ Service Guide - Page 14
(continued) ACER X193HQ 13 Go to cover page Take lamp cables out from the holes shown as the S6 photo. S10 Put a rear cover on the Size=M3x8;Torque=6.5±0.5KGFxCM). Torque=6.5±0.5KGFxCM). S12 Assemble the stand upper side to the rear cover through the way of screwing 4 screws till both units - Acer X193 | X183H / X193HQ Service Guide - Page 15
Put accessories of stand, DVI cable, and user's manual ,power cable on specific positions as photo below. Stick Vista and TC003 label on the correct S15 position the same as below photo POWER CABLE D-SUB CABLE DVI CABLE USER'S MANUAL Take a LDPE+EPE bag to cover the LCD S16 monitor. S19 Move - Acer X193 | X183H / X193HQ Service Guide - Page 16
Disassembly Procedures (continued) ACER X193HQ 15 Go to cover page Open the carton with a proper tool. S1 FEATURE LABEL S4 Put returned unit on a protective cushion,then remove LDPE+EPE bag. Tear off tapes to remove the screen protector card then turn over the LCD monitor (screen faced down - Acer X193 | X183H / X193HQ Service Guide - Page 17
16 ACER X193HQ Go to cover page 4. Assembly and Disassembly Procedures (continued) Put the dissembled monitor closed to by pry up on the front bezel to disengage the locking mechanism. S10 Turn over the LCD monitor (screen faced up). S13 Hold the one upside corner of the front bezel after - Acer X193 | X183H / X193HQ Service Guide - Page 18
from front bezel Use properly force to pull up front bezel S17 Unplug 2 lamp cables ACER X193HQ 17 Go to cover page S18 Disconnect the FFC cable to the connector of panel. Use finger to push the No.1-2 square holes and separate the bracket chassis module and LCD panel apart. 2 1 4 3 1 2 - Acer X193 | X183H / X193HQ Service Guide - Page 19
18 ACER X193HQ Go to cover page 4. Assembly and Disassembly Procedures (continued) Examine the panel surface accoring to inspection S20 criteria. Put it aside. Disconnect all of the cable S23 S21 - Acer X193 | X183H / X193HQ Service Guide - Page 20
5. Troubleshooting 5.1 No display on the screen (Screen is black and colour of LED is amber.) ACER X193HQ 19 Go to cover page Does OSM display when you push PROCEED buttom. No When a sync signal of computer, or change the cable. Proceed "checking the resolution change IC movement" section. - Acer X193 | X183H / X193HQ Service Guide - Page 21
20 ACER X193HQ Go to cover page 5. Troubleshooting (continued) 5.2 Nothing displays on the screen ( "Abnormal sreen" dection" Check if the LCD video signal cable is connected between the Interface Board and LCD module. NG OK Failure Point The LCD video signal cable is disconnected. Next Page - Acer X193 | X183H / X193HQ Service Guide - Page 22
5. Troubleshooting (continued) 5.2 Nothing displays on the screen (Screen is black and colour of LED is blue)continued Continue ACER X193HQ 21 Go to cover page Check the 5V power supply for P305 pin . Failure Point 1) The LVDS cable broke between P305 and LCD module. 2) LCD module is failure. - Acer X193 | X183H / X193HQ Service Guide - Page 23
22 ACER X193HQ Go to cover page 5.3 Checking the back light unit 5. Troubleshooting (continued) Is +22V supplied to inverter PWB ? (by the power board) NG OK R304,R357 and I305 pin11. 2) Q302 is failure. Failure Point 1) Back light unit of LCD module is failure. 2) Inverter Cable disconnect - Acer X193 | X183H / X193HQ Service Guide - Page 24
5.4 Abnormal screen for VGA 5. Troubleshooting (continued) ACER X193HQ 23 Go to cover page Check the R, G, B video signal from computer input on P302 of video connector. NG OK Failure Point Printed wire broke between I305 and P305. Prpcess "Checking the resolution change IC movement" section. - Acer X193 | X183H / X193HQ Service Guide - Page 25
24 ACER X193HQ Go to cover page 5.5 Abnormal screen (For the DVI) 5. Troubleshooting (continued) Check the DVI video signal from computer input on P303 of DVI-I video NG OK Failure Point Printed wire broke between I305 and P305. Prpcess "Checking the resolution change IC movement" section. - Acer X193 | X183H / X193HQ Service Guide - Page 26
5.6 Abnormal OSM display adjust problem 5. Troubleshooting (continued) ACER X193HQ 25 Go to cover page Check the input TTL level whether was changed when pressed function keys on the P304 pin3, 5 (normal is high level, when push buttom, generated - Acer X193 | X183H / X193HQ Service Guide - Page 27
26 ACER X193HQ Go to cover page 5.7 Abnormal plug and play operation for VGA Confirm the host computer supplies DDC2B mode. NG OK Failure Point The host machine is not communicatiog - Acer X193 | X183H / X193HQ Service Guide - Page 28
5. Troubleshooting (continued) 5.8 Abnormal plug and play operation (For the DVI) ACER X193HQ 27 Go to cover page Confirm the host computersupplies DDC2 mode. NG OK Failure Point The host machine is not communicatiog in DDC2 mode. Check the voltage on P303 - Acer X193 | X183H / X193HQ Service Guide - Page 29
28 ACER X193HQ Go to cover page 5. Troubleshooting (continued) 5.9 Checking the interface circuit horizontal sync signal on I308 pin8 TTL level. NG OK Failure Point Process "Checking the resolution change IC movement" section. Failure Point 1) Printed wire broke between P302 pin14 and I308 - Acer X193 | X183H / X193HQ Service Guide - Page 30
5. Troubleshooting (continued) 5.10 Checking the resolution change IC movement ACER X193HQ 29 Go to cover page Check +3.3V supply on I305 pin41,I308 pin1,46. NG OK Proceed " Checking the DC/DC converter circuit" section. Check +1.8V supply on I308 - Acer X193 | X183H / X193HQ Service Guide - Page 31
30 ACER X193HQ Go to cover page 5.11 Checking the DC/DC converter circuit 5. Troubleshooting (continued) Check the 5V is output from P301 pin 5,6 NG OK Check the 5V is input to I301 pin3. NG OK Check the 3.3V is - Acer X193 | X183H / X193HQ Service Guide - Page 32
Firmware Upgrade Process ACER X193HQ 31 Go to cover page 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. Connect VGA cable between monitor and kit Connect - Acer X193 | X183H / X193HQ Service Guide - Page 33
32 ACER X193HQ 6. Firmware Upgrade Process (continued) Go to cover page Step-5 Select "64K" icon to load firmware image. There are two HEX files. You only need to select "64K" to choose "X203H_AAS_F001-EMEA.hex" - Acer X193 | X183H / X193HQ Service Guide - Page 34
7. Writing EDID Process ACER X193HQ 33 Go to cover page 1 Writing EDID Procedure Hardware Configuration: 1.)Connect to write. Acer-X193H-X203H be used in the monitor only has VGA port. Acer-X193H-X203H-digital signal be used in the monitor both have VGA and DVI port Select the "Acer-M1&M3-XPEDID - Acer X193 | X183H / X193HQ Service Guide - Page 35
34 ACER X193HQ Go to cover page 7. Writing EDID Process (continued) 4. Choose "WRITE" from menu then select "Scan S/N And Write EDID And Test DDC" 5. Key in series number(22 characters) in - Acer X193 | X183H / X193HQ Service Guide - Page 36
1 2 3 4 5 6 7 8 9 10 11 12 13 CCFT Drive A LCD Flat Panel A Panel date& control.DC power B B DC 5V Inverter control Interface Board IN Audio Source 1 2 3 4 5 6 7 F G Host Computer Function Key Board 8 9 10 11 12 13 PCB No. ACER X203H 35 Go to cover page