Acer V193W Service Guide
Acer V193W - bm - 19" LCD Monitor Manual
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UPC - 884483086146
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Acer V193W manual content summary:
- Acer V193W | Service Guide - Page 1
Acer V193W Service Guide 1 - Acer V193W | Service Guide - Page 2
Version A00 Service Guide Version and Revision Release Date Mar.-17-2008 Revision History Initial Release TPV model T97AMRD8W7ABNN 2 - Acer V193W | Service Guide - Page 3
purpose. Any Acer Incorporated software described in this manual is sold or licensed "as is". Should the programs prove defective following their purchase, the buyer (and not Acer Incorporated, its distributor, or its dealer) assumes the entire cost of all necessary servicing, repair, and any - Acer V193W | Service Guide - Page 4
printed Service Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and service and used in accordance with the instructions, may cause harmful interference to by turning the equipment off and on, the user is encouraged to try to correct the interference - Acer V193W | Service Guide - Page 5
normal with LCD monitor and do not indicate a problem. Notes 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. You may find slightly uneven brightness on the screen depending - Acer V193W | Service Guide - Page 6
Monitor Block Diagram Main Board Diagram Software Flow chart Main Board Layout Installation Attaching/Removing the base Chapter 2 Operating Instructions External Controls Front Panel Controls eColor Management (OSD) How to Adjust a Setting LOGO Chapter 3 Machine Disassembly Chapter 4 Troubleshooting - Acer V193W | Service Guide - Page 7
Features Chapter 1 Introduction Scope This specification defines the requirements for the 19" MICROPROCESSOR based Multi-mode supported high resolution color LCD monitor. This monitor can be directly connected to general 15-pin D-sub VGA connector, also supports VESA DPMS power management and plug - Acer V193W | Service Guide - Page 8
Input signal Control temperature User brightness control User contrast control Picture position and size Viewing angle AC Supply voltage Ambient temperature Humidity Display mode e-color mode Dark room (< 1 cd/m2) 40 cm for LCD performance, 20 cm for LCD , all white Set to "User" mode Measurement - Acer V193W | Service Guide - Page 9
LCD Monitor General Specification Driving system TFT Color LCD Active Display Area 408.24 (H) x 255.15 (V) LCD Panel Input Viewing ENERGY STAR® ON Mode OFF Mode < 37W < 1W Contrast control Set to The value under user mode, which allows that the brightest two of 32 linear distributed gray - Acer V193W | Service Guide - Page 10
LCD Panel Specification TPM190A1(PW01) V0A1 is a 19" wide TFT Liquid Crystal Display module with 2ch-LVDS interface. This module supports 1440 x 900 WXGA+ mode and can display 16.7M colors. The inverter module for Backlight is not built in. General Specifications 10 - Acer V193W | Service Guide - Page 11
Function Block Diagram Electrical Characteristics 11 - Acer V193W | Service Guide - Page 12
Optical Specifications 12 - Acer V193W | Service Guide - Page 13
Support Timing Mode Resolution VGA SVGA XGA VESA SXGA WXGA 640x480@60Hz 640x480@72Hz 640x480@75Hz 800x600@56Hz 800x600@60Hz 800x600@72Hz 800x600@75Hz 1024x768@60Hz 1024x768@70Hz 1024x768@75Hz 1152x864@75Hz 1280x960@ - Acer V193W | Service Guide - Page 14
, brightness control logic and DDC. The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage. CCFL Drive. Flat Panel and CCFL backlight Inverter Board (include adapter) AC-IN 90V-264V Main Board Key board Input : D-SUB Signal - Acer V193W | Service Guide - Page 15
Main Board Diagram Crystal (X401) 14.31818MHZ LCD Interface (CN403) Scalar IC TSUM1PFR-LF (Include MCU ,ADC, OSD) (U401) Key Board Control (CN401) H sync V sync RGB D-Sub Connector (CN101) 15 - Acer V193W | Service Guide - Page 16
Software Flow Chart 1 Y 2 3 N N 4 N 5 Y 6 N 7 8 Y Y 9 N 10 11 Y N 12 N 13 Y Y N 14 15 16 Y 17 N 18 19 Y 16 - Acer V193W | Service Guide - Page 17
default values. 4) Get the PWM value of brightness from EEPROM. 5) Is the power key pressed? power key status into EEPROM. Turn on the LED and set it to green color. Scalar initializes. 10) In Are there any signals coming from analog port? 16) Display "No connection Check Signal Cable" message. And - Acer V193W | Service Guide - Page 18
Main Board Layout Symbol U401 U404 U103 U102 U402 Description IC TSUM1PFR-LF IC AP1117D33LA TO252-3L ATC IC AZC099-04S SOT23-6L IC AZC099-04S SOT23- - Acer V193W | Service Guide - Page 19
the power cord to the monitor, then to a properly grounded AC outlet. 3 Turn on the monitor and computer Turn on the monitor first, then the computer. This sequence is very important. 4 If the monitor does not function properly, please refer to the troubleshooting section to diagnose the problem. 19 - Acer V193W | Service Guide - Page 20
Attaching/Removing the Base Attaching: Align the release button on the bottom of the monitor with the corresponding slots on the bottom of the base. Removing: Press the release button as indicated, then pull in the direction of the arrow to remove the base. 20 - Acer V193W | Service Guide - Page 21
Operating Instructions Chapter 2 Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences. • The power cord should be connected. • Connect the - Acer V193W | Service Guide - Page 22
eColor Management (OSD) 22 - Acer V193W | Service Guide - Page 23
How to Adjust a Setting 23 - Acer V193W | Service Guide - Page 24
Adjusting the picture 24 - Acer V193W | Service Guide - Page 25
25 - Acer V193W | Service Guide - Page 26
Description Auto Config When Analog signal input, if User Press Hot-Key "Auto", will show this message, and the Please Wait monitor do the auto config function. Input Not Supported When the Hsync Frequency, Vsync Frequency or Resolution is out of the monitor support range, will show this message - Acer V193W | Service Guide - Page 27
be non-functional if there is no video input signal. In order for this monitor to operate properly, there must be a video input 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 - Acer V193W | Service Guide - Page 28
Machine Disassembly Chapter 3 This chapter contains step-by-step procedures on how to disassemble the monitor for maintenance. Disassembly Procedure 1. Remove the cover hinge as the following indicator. (Fig 1) Fig 1 2. Remove the screws as following indicate to release base stand. (Fig 2) Fig 2 - Acer V193W | Service Guide - Page 29
3. Remove the back cover and bezel. (Fig 3) Fig 3 4. Remove the lamp connectors and the screw. (Fig 4-5) Fig 4 Fig 5 29 - Acer V193W | Service Guide - Page 30
5. Remove the screws to remove the panel. Put attention to the LVDS cable.(Fig 6-7) Fig 6 Fig 7 6. Remove the screws to remove the main board and power board.( Fig 8) Fig 8 30 - Acer V193W | Service Guide - Page 31
This chapter provides troubleshooting information for the V193W: 1. No Power No power Chapter 4 Press power key and look if the picture is normal NG Please reinsert and make sure the AC of 100- - Acer V193W | Service Guide - Page 32
No picture The button if under NG X401 oscillate NG control waveform is normal Replace X401 OK Measure U404 Pin2=3.3V, OK OK Check reset circuit of U401 is normal OK Replace U401 NG Check Correspondent component X401 oscillate waveform is normal NG OK NG Replace U404 Replace X401 Check - Acer V193W | Service Guide - Page 33
3. Panel Power Circuit White screen Measure Q404 base is low level? OK Check CN403 is solder and Q404,Q405 is OK? Check Correspondent component. NG OK Replace PANEL NG X401 oscillate waveform is normal OK NG Replace X401 Check reset circuit of U401 is normal NG Check Correspondent - Acer V193W | Service Guide - Page 34
4. Key Board OSD is unstable or not working Is Key Pad Board connecting normally? Y Is Button Switch normally? Y Is Key Pad Board normally? Y Check Main Board NG NG NG Connect Key Board Replace Button Switch Replace Key Board 34 - Acer V193W | Service Guide - Page 35
volt 120V or 220V NG OK Check the voltage of C905(+) NG OK Check start voltage for the Pin2 of IC901 NG OK Check Interface board Change F901, Check BD901, L901, IC901 Check bridge retified circuit Change IC901 Check the auxiliary voltage is smaller than 20V NG OK Check IC901 Check - Acer V193W | Service Guide - Page 36
W/LED No Backlight Check the 14V voltage input NG OK Check ON/OFF signal NG OK Check IC801 pin12=12V? NG OK Check the adapter Check Interface board Change Q805.Q808 or Q810 Check the pin9&10 of IC801 have PWM wave NG Change Q801/Q804/Q811/Q812 OK OK Check the resonant - Acer V193W | Service Guide - Page 37
Connector Information The following figure shows the connector locations on the monitor: Chapter 5 37 - Acer V193W | Service Guide - Page 38
for repair and service of customer machines. NOTE: To scrap or to return the defective parts, you should follow the local government ordinance or regulations on how to dispose it properly, or follow the rules set by your regional Acer office on how to return it. Exploded Diagram (Model: V193W) 38 - Acer V193W | Service Guide - Page 39
Part List Above picture show the description of the following component. Item Picture 1 Description Base 2 Main Frame 4 Panel 39 - Acer V193W | Service Guide - Page 40
5 Power Board 6 Main Board 40 - Acer V193W | Service Guide - Page 41
Schematic Diagram Main Board VCC3.3 H_Sy nc R101 0R05 1/10W 5% V_Sy nc R102 100R 1/16W 5% R103 100R 1/16W 5% R105 2K2 1/16W 5% R106 C102 C103 2K2 1/16W 5% 22pF 22pF DSUB_H - Acer V193W | Service Guide - Page 42
17 SOGIN0 BIN0P BIN0M HSY NC0 18 VSY NC0 19 DDCA_SDA/RS232_TX DDCA_SCL/rs232_RX AVDD_ADC 6 51 VDDP VDDC PWM0/GPIO_P26 GPIO_P13 GPIO_P14 63 64 U402 For user data, WB, EDID, SST HDCP are saved Cd)/(Cg+Cd)) P.S : Assume Cs = 4 pF X401 CL of SPEC Cs and Cd (C411, C412) 蔼 (93G 22-53B-H) 18 pF - Acer V193W | Service Guide - Page 43
PA5 PA6 PA7 PA8 PA9 PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 PB8 PB9 CN403 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 CONN 43 - Acer V193W | Service Guide - Page 44
CN404 1 2 3 4 5 6 7 8 9 CONN 5, 6 CMVCC CMVCC DSUB_5V ESD_VCC 2 2008/01/14 BAT99 : If 0.05A,VF=1.0V BAV70 : If 0.05A,VF=1.0V It's need to use Low Dropout Regulator. Due to LG doen't request PC'99 Function. D401 R458 LG NC 0Ohm 1/16W OTHER BAV99 NC DSUB_5V 2 R458 NC D401 BAV99 VC C 3. - Acer V193W | Service Guide - Page 45
Power board 45 - Acer V193W | Service Guide - Page 46
46 - Acer V193W | Service Guide - Page 47
Key board CN001 1 LBADC1 2 LBADC2 3 POWER_Key 4 LED_BLUE# 5 LED_RED# 6 CONN C001 NC MENU LBADC1 VOL- (GND) 0 V VOL+ LBADC2 AUTO ECOLOR(GND) 0 V LED_BLUE# LED_RED# C002 C003 NC NC ZD001 2