Acer V193 Service Guide
Acer V193 Manual
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- Acer V193 | Service Guide - Page 1
Acer V193 Service Guide Service guide files and updates are available on the CSD web: for more information, Please refer to http://csd.acer.com.tw/ - 1 - - Acer V193 | Service Guide - Page 2
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, of its dealer) assumes the entire cost of all necessary servicing, repair, and any - Acer V193 | Service Guide - Page 3
in the printed Service Guide, for ACER-AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and Service of customer - Acer V193 | Service Guide - Page 4
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 monitor to rain or moisture. Dangerously high voltages are present inside the monitor. Do not open the cabinet. Refer servicing - Acer V193 | Service Guide - Page 5
or sold with the monitor. If you mount the monitor on a wall or shelf, use a mounting kit approved by the manufacture and follow the kit instructions. z Slots and . Please refer all servicing to qualified service personnel. z To ensure satisfactory operation, use the monitor only with UL listed - Acer V193 | Service Guide - Page 6
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 - Acer V193 | Service Guide - Page 7
...45 Chapter 3 Machine Disassembly and Replacement 47 DISASSEMBLY PROCEDURE ...47 Chapter 4 Troubleshooting 50 TROUBLESHOOTING ...54 Chapter 5 Connector Information 55 CONNECTOR INFORMATION ...58 Chapter 6 FRU List 59 PART LIST...55 Chapter 7 Schematic Diagram 60 SCHEMATIC DIAGRAM ...60 - 7 - - Acer V193 | Service Guide - Page 8
the requirements for the 19" MICRO-PROCESSOR based Multi-mode supported high resolution color LCD monitor. This monitor can be directly connected to general 15 pin D-sub VGA connector and eliminates the requirement of optional special display card. It also supports VESA DPMS power management and - Acer V193 | Service Guide - Page 9
User red/white balance, Green/white balance and Blue/white balance control : In the center (unless otherwise specified ) Power input: 110Vac or 230Vac Ambient temperature: 20 ± 5 ˚C ( 68 ± 9 ˚ F) Analog input LCD monitor General specification Panel Type: 19 " active matrix color TFT LCD - Acer V193 | Service Guide - Page 10
Display Dot: Pixel Clock: Contrast ratio: θ = 0˚ Brightness: Response time (Tr/Tf): Display color: Viewing angle(CR>10): Luminance Uniformity: 1280 x (RGB) × 1024 25.2 - 135.0MHz LG: 500:1 (typical) Samsung: 700:1 (typical) AU: 550:1 (typical) LG: 250 (typical) Samsung: 300 (typical) LG Ta=25 - Acer V193 | Service Guide - Page 11
LCD Panel Specification LCD Panel Model (LM190E08-TLL1) General specification Optical specifications - 11 - - Acer V193 | Service Guide - Page 12
Note 1) Definition of Viewing Angle: Viewing angle range (10≤CR) Note 2) Definition of Contrast Ratio (CR): Ratio of gray max(Gmax),gray min(Gmin) at the center point of panel. CR= Luminance with all pixels white (Gmax Luminance with all pixels black (Gmin) Note 3) Definition of Response time: - Acer V193 | Service Guide - Page 13
Environment condition :Ta=25±2°C Optical characteristics measurement setup Notes 5) Definition of Luminance of White : measure the luminance of white at center point. Notes 6)Definition of 9 points brightness uniformity (Measuring points: Refer to the Note 5) AU BUNI= Bmin X 100% - 13 - - Acer V193 | Service Guide - Page 14
dots on the test panel Are G22,G32,and G45) ♦ Test Point :Center point of the display area Note 8) Definition of Crosstalk (Refer to the VESA STD) - 14 - - Acer V193 | Service Guide - Page 15
The calculation for shadowing is made from the 2 luminance measurements Gbkg and Lsh, as follows: Lmax -Lmin CT x100 % Lmin Where Lmax is the larger value of Gbkg or Lsh , and Lmin is the smaller of the two. ♦ To determine background and foreground levels (colors),first set the background - Acer V193 | Service Guide - Page 16
B. 75 ohm +/- 2% Positive 0 - 0.7 +/- 0.05 Vp same as LCD panel DVI (option) separate horizontal and vertical sync, or composite sync which are TTL compatible positive and negative. Interface frequency The following frequency range is generalized by supported timing. If the entered mode does not - Acer V193 | Service Guide - Page 17
Supported Timing TIMING 640x350 VGA-350 640x400 NEC PC9801 640x400 VGA-GRAPH 640x400 NEC PC9821 640X480 VESA-PAL 640x480 VGA-480 640x480 APPLE MAC-480 640x480 VESA-480-72Hz 640x480 VESA-480-75Hz 720x400 VGA-400-TEXT 832x624 APPLE MAC-800 800x600 SVGA 800x600 VESA-600-60Hz 800x600 VESA 16 1 18 12 32 - Acer V193 | Service Guide - Page 18
video modes within the frequency range of the monitor. 85Hz refresh rate Support Monitor should display 85Hz refresh rate mode as emergency mode. Monitor should display "Out of Range" warning menu at this mode. Video input Connector Analog Video input Connector: 15pins mini D-Sub Table 2.4.5. Pin - Acer V193 | Service Guide - Page 19
Input Connector : DVI - D (T.B.D) Table 2.4.6 Pin assignment for DVI - D Connector: Pin - Assignment of DVI -D connector : 1 TX2- 9 TX1- 17 TX0- 2 TX2+ 10 TX1+ 18 TX0+ 3 Shield (TX2 / TX4) 11 Shield (TX1 / TX3) 19 and the power of the monitor is switched on, no voltage may occur at pin 14 - Acer V193 | Service Guide - Page 20
BLOCK DIAGRAM The LCD monitor will contain an main board, an inverter/ power board, key board and internal adapter which house the flat panel control logic, brightness control logic and - Acer V193 | Service Guide - Page 21
BLOCK DIAGRAM System Block Diagram - 21 - - Acer V193 | Service Guide - Page 22
Monitor board layout. LABEL U1 U4 U5 U501 Component UZ1084L-33 RTD2120 RTD2025/2045/2525/2545 ATPA6019 LABEL CN1 CN2 CN3 CN4 CN201 CN500A CN500B CN501 CN502 Component E&T 4500-08/4500-06 E&T 4501-19 D-SVB 15 PIN P-TWO AFN300 30P E&T 4500-03 E&T 4500-02 E&T 4500-03 NC E&T 4500-03 - 22 - - Acer V193 | Service Guide - Page 23
Software flow chart . - 23 - - Acer V193 | Service Guide - Page 24
Instructions Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. from the monitor to the video card. z Press the power button to turn on the monitor position. The power indicator will light up. External Controls 1 LED 2 / - Acer V193 | Service Guide - Page 25
System Installation Connecting the Display z Power off your computer. z Connect one end of the signal cable to the LCD Monitor's VGA port. z Connect the other end of the signal cable to the VGA port on your PC. z Make sure connections are secure. Connecting the AC - Acer V193 | Service Guide - Page 26
: Less than 1W @ minimum load Total output power: 40Wmax Inverter brightness adjustment: Burst mode Protection function: auto-recovery type Interface Signals Input 1. AC Inlet: HUAJIE SA-4S-328 or compatible. 2. J701: SC SCJ-0345-1-X-9 3.6D BLU 3P or compatible. Output Connector & Pin Assignment - Acer V193 | Service Guide - Page 27
Comment VBLH(High voltage) VBLL(Low voltage) Electrical Specification: AC-DC Electrical specification 3.4.1.1 Input Specification No Item Condition 1 Input Voltage ----- 2 Input requency ----- 3 Input Current 4 Inrush Current 5 Hold Up Time ----Cold Start @Vin=100Vrms Cold Start - Acer V193 | Service Guide - Page 28
2) OPP: Should be protected when output power consumption is within ~ 55W Inverter Electrical Specification: For 19" Panel Condition Min. Input Voltage --- --- Input Current --- --- Backlight ON/OFF Control ON OFF Brightness Adjust Min. Luminance / Max. --- Luminance Output Voltage - Acer V193 | Service Guide - Page 29
Striking Time --- --- 1 --- S Lamp Current Balance --- --- ±0.35 --- mA Efficiency Vin=19V --- 80 --- % *.The open lamp voltage is testes at output connector terminal SAFETY Leakage Current: 0.25mA @ 100Vac 3.5mA @ 264Vac Insulation Resistance: more than 3M ohms while withstanding a - Acer V193 | Service Guide - Page 30
to avoid unintentionally entering of a power saving stage during display resolution and timing mode changes. Transition from any power saving state to another can be instantaneous. The recovery from Off-state requires no manual power on. Mode H-Sync. V-Sync. Video Pw-cons. Indicator Rec - Acer V193 | Service Guide - Page 31
Chapter 2 Operating Instructions CONTROLS Control panel (monitor front panel) 1 Power LED, will be blue when monitor is on; be amber when in power saving mode. 2 Power ON/OFF switch, push to ON and push to OFF. (toggle switch) 3 Function change or - Acer V193 | Service Guide - Page 32
P/X Series OSD behave When user press "MENU" button on front bezel A. Acer eColor Management If selected to "Acer eColor Management" item, will appear the Acer eColor" OSD B. USER If selected to "USER" item, will appear the Standard OSD I. Only Analog Input Model II. Only Dual Input ModeI - 32 - - Acer V193 | Service Guide - Page 33
text N/A Standard mode Default Setting. Reflects native display capability N/A Graphic mode Enhances colors and emphasize fine detail Displays scenes in clearest detail. Pictures and N/A Movie mode photographs appear in vibrant colors with sharp detail B. USER. Main Menu icon Sub Menu icon - Acer V193 | Service Guide - Page 34
color temperature to cool white. User /Red User /Green Adjusts Red/Green/Blue intensity User /Blue N/A English N/A input signal from analog (D-Sub) Digital (only Dual Select input signal from digital(DVI) N/A Input Model) (only Dual-Input Model) N/A DDC/CI Turn ON/OFF DDC/CI support - Acer V193 | Service Guide - Page 35
N/A Information N/A Reset N/A Exit Show the resolution, H/V frequency and input port of current input timing. Clear each old status of Autoconfiguration and set the color temperature to Cool. Save user adjustment and OSD disappear. - 35 - - Acer V193 | Service Guide - Page 36
: Outline: User Text Standard Graphic Movie d mode d d d Operation instructions Acer eColor Management Step 1: Press " Key" to open the Acer eColor Management OSD fine detail Displays scenes in clearest detail User defined Reflects native display capability The most comfortable way to - Acer V193 | Service Guide - Page 37
Item Auto Config Please Wait Input Not Supported Cable Not Connected No Signal Description When User Press Hot-Key "Auto", will show this message, and the monitor do the auto config function. When the Hsync Frequency, Vsync Frequency or Resolution is out of the monitor support range, will show this - Acer V193 | Service Guide - Page 38
LOGO: When the monitor is power on, the LOGO will be showed in the center. hardware. Adjusted value of R, G, B gain shall be used for initial value of Contrast in user menu. All value shall be adjustable manually. This function shall be located in 3. tag of Factory menu. 3) Factory color temp data - Acer V193 | Service Guide - Page 39
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 use a cord set consisting of a minimum No. 18 AWG, type SJT or SVT three conductors flexible cord - Acer V193 | Service Guide - Page 40
0X A.2.6.1 requirement User should follow "Microsoft Windows Color Quality Specification for Liquid Crystal Display OEM's". (http://www.microsoft.com/hwdev/tech/color/ColorTest.asp) Audio Technical specification General Description: Output power Total harmonic distortion Input signal sensitivity - Acer V193 | Service Guide - Page 41
Current(m A) Audio Voltage Gain Frequency Response Signal to Noise ratio Total harmonic distortion Cross talk Output Watt. Volume Control Audio Input Freq. Spec. Comment Min. Typ. Max. - 0.5Vm - s - 500 800 500m Vrms 1KHz - - 6 d B Volume Max.,load 4 Ω 500m Vrms 300Hz-20KH -10dB - +10d - Acer V193 | Service Guide - Page 42
SOP for Factory Mode 1. Connect D-SUB cable and Power cord according to the graphic, and input power and signal 2. Turn on the monitor by clicking the power key, and show the normal image 4. Press the "Function -"key, "Function +" key & "Power" key simultaneously and Factory Model is got into - Acer V193 | Service Guide - Page 43
(Firmware upgrade) 1. Operation system & Connection a. PC (Win XP), b. ISP tool, c. VGA cable, d. RS232 cable b. Turn on the power of monitor. VGA cable shall be connected to ISP out port. 2. Install ISP BD driver on PC system a. Click the ISP driver program(port95nt.exe) b. Click to next page - Acer V193 | Service Guide - Page 44
ISP program (RTD2120_ISP_vXX.exe) 4. Load F/W files (There are two F/W files, XXX_code.hex&xxx_data.hex) a. Hold on the K/B"Ctrl"Key， b. Click to load F/W file( Ex：C：\Code\Acer \Acer_code.hex; c. Click to load F/W file (Ex:C：\Code\Acert\Acer_data.hex; 44 - Acer V193 | Service Guide - Page 45
d. Click to update F/W. e. The ISP process would be finished after the menu occur the "PASS" message. 5. We shall hold on the K/B "Ctrl" key before we want to use below functions. (1). Load F/W files。 (2). Config Function (3). Verify CheckSum function 45 - Acer V193 | Service Guide - Page 46
form chassis. 6. Disassemble the FFC form panel connector. 7. Disassemble four voltage lines from power board. 8. Remove speaker four screws form panel bracket R/L 9. Remove the chassis support 46 - Acer V193 | Service Guide - Page 47
Disassemble the main board and the power board 1. Remove the five screws to release line from Chassis 2. Disassemble audio line from VL board and power board (option). 3. Disassemble power line from VL board and power board. 4. Disassemble speaker line from VL board. 5. Disassemble the FFC form VL - Acer V193 | Service Guide - Page 48
Troubleshooting Main Procedure Chapter 4 48 - Acer V193 | Service Guide - Page 49
Power Circuit and Backlights Troubleshooting 49 - Acer V193 | Service Guide - Page 50
Performance Troubleshooting 50 - Acer V193 | Service Guide - Page 51
Function Troubleshooting 51 - Acer V193 | Service Guide - Page 52
Connector Information Phonejack stereo PIN1. right PIN2. Left PIN3. Gnd : CEE22 typed connector : Line-in receptacle Chapter 5 Video input Connector Analog Video input Connector: 15pins mini D-Sub Table 2.4.5. Pin assignment for D-sub connector Separate Sync 5 10 15 PIN NO. 1 1 RED VIDEO - Acer V193 | Service Guide - Page 53
may have a DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the local FRU list provided by your regional Acer office to order FRU parts repair and service of customer machines. NOTE: To scrap or to return the defective parts, you should follow the - Acer V193 | Service Guide - Page 54
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Part list No. Photo 1 Part Name Description BEZEL ASSY(V193) AV6901 ABS 94HB MBK94GP Part No. APAV690110I 2 Base ECAV692100I 11 PANEL BRACKET_R AV6922 SECC T=0.8MM GP ECAV692200I 12 CHASSIS SUPPORT AV6941 SECC T=0.8MM GP ECAV694100I 13 HINGE BREAKET (AV698) AV5732 SGECC - Acer V193 | Service Guide - Page 57
COVER(L/R) AV5747 MBK94 ABS 94HB GP FAAV574700I 15 LED LENS AV5741 PC CLEAR GP FCAV574100I 16 SCREW M3X0.5+4I-NI(GP) FCAV574100I 17 SCREW M3X0.5+4I-NI(NL) MAA0000320I 18 SCREW TPB-2-2.8I (ZK) MAB0000340I 19 SCREW SPECIAL 4#-40UNCX12.7 WASHER D=5.0 GP MAAA001933I 20 SCREW - Acer V193 | Service Guide - Page 58
28 Main board VL-951 LAV898GA 461AG630L12 29 Main board VL-948 LAV699GA 461AG330L12 30 Main board VL-950 LAV899GA 461AG530L12 31 Main board to LCD Cable 30P G P1PAD0.65 25CM NBX3010690I 58 - Acer V193 | Service Guide - Page 59
Schematic Diagram Chapter 7 59 - Acer V193 | Service Guide - Page 60
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