Service Manual ViewSonic VE150m/mb Model No.VLCDS22574-1/-1b 15” Color TFT LCD Display (VE150m/VE150mb-1_SM_399 - Rev.
Copyright Copyright © 2002 by ViewSonic Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of ViewSonic Corporation.
TABLE OF CONTENT WARNING ......................................................................................1 SAFETY PRECAUTIONS...............................................................1 CHAPTER 1 PREFACE.........................................................3 CHAPTER 2 SPECIFICATIONS..........................................6 2.1 Scope.............................................................................................. 6 2.2 General Requirement....................................
CHAPTER 10 CIRCUIT DIAGRAMS.....................................53 10.1 Micro-Controller MRT MV ............................................................... 53 10.2 Micro Controller and LCD power control ......................................... 54 10.3 VGA input........................................................................................ 55 10.4 Output Connector.......................................................................... 56 10.5 DC-DC .................................
WARNING This service information is designed for experienced repair technicians, do not attempt to do any form of disassembling or adjustment for the product. It does not contain warnings or cautions to advise non-technical individuals of the potential dangers in attempting to service the product. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempts to service or repair the inner products may cause serious injury.
Cord Type SJT SVT Size of Conductors in Maximum Current Rating of Cord Unit 18 AWG 16 AWG 10 Amps 12 Amps 14 AWG 12 Amps 18 AWG 17 AWG 10 Amps 12 Amps For European Countries In Europe you must use a cord set which is appropriate for the receptacles in your country. The cord set is HAR Certified, and a special mark that will appear on the outer sheath, or on the insulation of one of the inner conductors.
BROWN must be connected to the terminal in the plug which is marked with the letter L or colored RED. If you have any questions concerning which proper power cord to use, please consult with the dealer from whom you have purchased the product. PRECAUTION For best viewing conditions sit at least 18" from the LCD Display. AVOID TOUCHING THE SCREEN WITH YOUR FINGERS. Oils from the skin are difficult to remove. NEVER REMOVE THE REAR COVER. The LCD Display contains high-voltage parts.
The manual includes Engineering Specification, Front Panel Control description, Circuit Description, Troubleshooting, Theory of Operation, Mechanical Assembly, Service Parts List, and Circuit Diagram. Each section will be briefly discussed below. ENGINEERING SPECIFICATIONS This CHAPTER provides the engineering specification for the designated Display.
SERVICE PARTS LIST This chapter aims to serve as a guide in procuring replacement parts for this product. CIRCUIT DIAGRAM This CHAPTER provides functional circuits diagram of the LCD Display. PCB LAYOUT This CHAPTER provides PCB Layout of the LCD Display.
Chapter 2 SPECIFICATIONS 2.1 SCOPE 2.1.1 Introduction Product Configuration This specification defines the configuration and performance requirements for the following monitors: Worldwide product Product Name: VE150m / VE150mb Model Number: VLCDS22574 - XYZ Panel: CMO M150X3 ** - 1st “*” is designated series from 0~9, 2nd “*” is designated for region A~Z, 3RD “*” referred to color or new technology 2.1.2 Product Definition Top Level Assembly 1.
Product Assembly 1. VE150m / VE150mb unit 2. Attached base and neck 2.2 GENERAL REQUIREMENTS 2.2.1 General Specifications Test Resolution & Frequency 1024 x 768 @ 60Hz Test Image Size Full Size Contrast and Brightness Controls Factory Default – Contrast = 70% (center), Brightness = 100% 2.3 SIGNAL INTERFACE 2.3.1 RGB Input Video Interface Connector(s) 1 DB-15 Default Input Connector DB-15 Connector if both inputs are active.
five minutes. Video Cable Connector DB-15 Pinout Compliant with IBM 8513 and VESA DDC 1/2B. Video Signals 700 mV full scale, 1,000 mV full scale Video Impedance 75 Ohms Maximum PC Video Signal 950 mV with no damage to monitor Maximum Mac Video Signal 1250 mV with no damage to monitor Sync Signals TTL Sync Level 2.5 Volts – 5.25 Volts DDC 1/2B Compliant with Revision 1.
Output Voltage @0-3.58A Load 12V DC +/- 5% Short Circuit Protection Output can be shorted without damage. Over Current Protection 4.5A typical Leakage Current 3.5mA (Max) at 254VAC / 60Hz Efficiency 78% typical at 115VAC Full Load Fuse Internal and not user replaceable Power Dissipation – max 40W (CHI) / 48W (HJC) Max Input AC Current 1.5Arms @90VAC, 0.
Length = 1.8m. Connects to DC Adapter. VE150m (beige), VE150mb (black). European Type Power Cable Schuko CEE7-7. Length = 1.8m, Connects to DC Adapter. VE150m (beige), VE150mb (black). 2.4.3 Power Saving Operation Method VESA DPMS Signaling Power Consumption ON Mode < 30 W (max) ACTIVE OFF < 2 W Recovery Time ON Mode = N/A OFF < 3 sec 2.5 FRONT PANEL CONTROLS AND INDICATORS 2.5.1 Front Panel Hardware Controls Power Switch (Front Head) Power Control, soft Power Switch.
is in progress and when it is completed then the final message will indicate “OSD Locked or OSD Unlocked”. 2. The power button lock will be activated by pressing the front panel control buttons "(1), & (down)" for 10 seconds. Locking the power button means that the user won't be able to turn off the LCD while the power button is locked. If the user presses the power button while it is locked, a message will appear on the screen for 5 seconds showing "Power Button Locked".
Maximum Pixel Clock 80 MHz Sync Polarity Independent of sync polarity. 2.6.2 Primary Presets Primary Preset VESA 1024 x 768 @ 75 Hz 2.6.3 Look up table timing 1. IND 640 x 350 @ 70Hz, 31.47kHz, -/+ 1. VESA 800 x 600 @56Hz, 35.156kHz, +/+ 2. IND 720 x 400 @ 70Hz, 31.467kHz, +/- 2. VESA 800 x 600 @60Hz, 37.879kHz, +/+ 3. VESA 640 x 480 @ 60 Hz, 31.5 kHz 3. VESA 800 x 600 @72Hz, 48.077kHz, +/+ 4. MAC 640 x 480 @67Hz, 35kHz 4. VESA 800 x 600 @75Hz, 46.875kHz, +/+ 5. VESA 640 x 480 @72Hz, 37.
Distortion < 1 % THD @ 1kHz Connector color PC99 requirement Lime Green pantone # 577C Audio in Cable length 1.8 m 2.8 LCD Panel 2.8.1 Panel Characteristics Panel Type CMO M150X3 Type Active Matrix TFT, (TN technology) Active Size 304.1mm (H) x 228.1 mm (V) Pixel Arrangement RGB Vertical Stripe Pixel Pitch 0.
Please see Panel Acceptance Specification. Other Panel Defects Please see Panel Acceptance Specification. Panel Defects Please see Panel Acceptance Specification. 2.9 IMAGE PERFORMANCE 2.9.1 Factory Defaults Preset Color 6500K (Primary 1) Contrast Control Factory Default Brightness Control Factory Default 2.9.2 Display Size Horizontal Display Size, Primary Preset Full Screen Vertical Display Size, Primary Preset Full Screen 2.9.
Chapter 3 FRONT PANEL CONTROLS 3.1 Adjusting the Screen Image Use the buttons on the front control panel to adjust the OnView® controls which display on the screen.
3.2 Do the following to adjust the screen image: 1. To display the Main Menu, press button [1]. From the Main Menu you can also navigate to the other menus shown below: NOTE: All OnView menus and adjustment screens disappear automatically after about 15 seconds. 2. To select a control you want to adjust, press Ÿ or ź to scroll up or down the Main Menu. 3. After the control is selected, press button [2]. 4. To adjust the control, press the up Ÿ or down ź buttons. 5.
3.3 Main Menu Controls The menu items shown below can be adjusted by using the up c and downd buttons on the front of the LCD Display. Control Explanation Auto Image Adjust automatically sizes, centers, auto-contrasts and fine-tunes the video signal to eliminate waviness and distortion. Press the [2] button to obtain a sharper image. NOTE: Auto tune works with most common video cards.
Control Explanation Information displays an information menu showing technical information and the product serial number. See below. Image Adjust displays the Image Adjust menu. The Image Adjust controls are explained below: H. /V. Position adjusts horizontal and vertical position of the screen image. You can toggle between Horizontal and Vertical by pressing button [2]. Horizontal moves the screen image to the left or to the right. Vertical moves the screen image up and down. H.
Control Explanation Fine Tune eliminates any remaining video artifacts (noise, banding, out-of-phase, etc.) Note: Try Auto Image Adjust first. Sharpness adjusts the clarity and focus of the screen image... Setup Menu displays the menu shown below. The Setup Menu controls are explained below. Language Select allows you to choose the language used in the menus and control screens. Resolution Notifier displays the Resolution Notice menu shown below. Resolution Notice advises the optimal resolution to use.
Control Explanation Memory Recall returns adjustments to the original factory settings if the display is operating in factory Preset Timing Mode listed in this user guide. Exception: This control does not affect changes made with the User Color control.
Chapter 4 CIRCUIT DESCRIPTION 4.1 Main Board 4.1.1 Position CON7 N/A P2 CON5 P1 CON4 CON2 N/A CON1 N/A CON8 CON3 N/A CON12 J1 CON9 (Not applicable) J2 NOTE: N/A INDICATES PIN-HEADER/CONNECTOR NOT IN USE.
4.1.2 CON4: Switch Board Pin Header Pin # Signal Name Function 1 GND GROUND 2 RX1 - SW7 Volume Down 3 R120 - SW1 OSD Key 4 R121 – SW2 ADDITION Key 5 R122 – SW3 SUBTRACTION Key 6 R123 – SW4 DOWN Key 7 RX2 – SW6 MUTE 8 NC No Connect 9 R53 – SW5 Volume Up 10 R308 - LED LED 11 R309 – LED LED 12 R54 - PWR Power Switch 4.1.
4.1.
4.1.5 P1 LCD Panel Pin # Signal Name Function 1 LCD VDD +3.3 V POWER SUPPLY 2 LCD VDD +3.
35 BA0 BLUE ODD DATA SIGNAL 0 36 BA1 BLUE ODD DATA SIGNAL 1 4.1.6 CON8: VGA TERMINAL Pin # Signal Name Function 1 SCL-DDC DDC DATA CLOCK Line (SCL) 2 GND GROUND 3 VSYNC V-SYNC 4 HSYNC H-Sync 5 GND Ground 6 SDA-DDC DDC SERIAL DATA LINE (SDA) 7 VCC-DDC Green Video Ground 8 GND GROUND 9 GND GROUND 10 BLUE Blue Video 11 GND Ground 12 GREEN GREEN VIDEO 13 GND Ground 14 RED RED VIDEO 4.1.
Chapter 5 TROUBLESHOOTING 5.1 Equipment z z ViewSonic VE150m/VE150mb/VA500 LCD Monitor Personal Computer z Screw Driver 5.2 Main Procedure Start Connect all of devices to theLCD monitor Power On Is indicator LED light? A.
1 Is backlight on? No B. Backlight Troubleshooting Yes Display Performance O.K.? No C. Performance Troubleshooting No D. Function Troubleshooting No E. Audio Troubleshooting Yes Function Adjustment O.K.? Yes Audio Function O.K.
5.2.1 .
5.2.2 B.
5.2.3 C.
2 Screen with noise or line bar? Yes Reset & Adjust resolution Yes End No Change Main Board No Screen is smaller? Make sure relution is set at system default Yes No Yes Reset O.K.
5.2.4 D.
5.2.5 E. Audio Troubleshooting Start Make sure sound output, Audio cable is OK.
Chapter 6 THEORY OF OPERATION 6.
6.2 System Circuitry Description BLOCK A. In reference to the system block diagram of the monitor’s circuitry shown on the previous page, the analog RGB inputs are amplified and sent through an analog-to-digital converter (ADC) to a digital signal processor (DSP) that generates digital RGB signals for controlling LCA panel. BLOCK B. A second power supply converts a single 12V supply to the various voltages needed to run the LCD panel and the inverter driving the display’s backlights. BLOCK C.
VE150M Chapter 7 MECHANICAL ASSEMBLY ViewSonic Corporation 36 Confidential -Do Not Copy VE150m/mb
VE150MB ViewSonic Corporation 37 Confidential -Do Not Copy VE150m/mb
MECHANICAL PARTS LIST ITEM NO.
Chapter 8 RECOMMENDED SPARE PARTS LIST Name Item M0M-1557GC-031 ViewSonic P/N 1 A-AD-0114-0173 2 3 4 5 M-MS-0808-6808 M-MS-0808-6811 M-LB-0813-0562 M-MS-0808-7716 6 A-CD-VE150MB 7 Description ADAPTER,12V,40W,3.33A(BIG)3P,S-CORE,BLACK,tunning fork XCH1234P51525,CHI,VIEW SONIC(LABEL Reference Number ADT-A333V-1211 BAG-48065-035A BAR-IY151-1002 BAR-VE150-1202 BAG-16022-0C00 M-MS-0808-7718 BAG W680*H750*t0.
Name No M0M-1557GC-02 ViewSonic P/N 1 A-AD-0114-0175 2 3 4 M-MS-0808-6808 M-LB-0813-0562 M-MS-0808-7716 5 Description ADAPTER,12V,40W,3.33A(BIG)3P,S-CORE,IBM GRAY,tunning fork, XCH1234P51526,CHI,VIEWSONIC(LBL Reference Number ADT-A333V-1221 BAG-48065-035A BAR-VE150-1202 BAG-16022-0C00 A-CD-VE150M BAG W680*H750*t0.
Chapter 9 COMPLETE PARTS LIST 1DPH 9/&' ;<= ,WHPV 9LHZ6RQLF 3 1 $ $' $ $' 0 06 $ $8 $ $8 0 06 0 06 $ 9& 0 &9 0 &9 & )3 & %& % 6% % 6% % 6% 0 /% 0 /% 9( P 'HVFULSWLRQ $'$37(5 9 : $ %,* 3 6 &25( ,%0 *5$< ;&+ 3 &+, 9,(:62 1,& /%/ $'$37(5
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3. VLCD22574-XYZ Main Board ViewSonic P/N Description BEAD,K5BR6H63X10X0.85-3TsE-L-0407-1413 B,DIP 90Ζ,KING-CORE CAP,100uF,+/-20%,DIP E-C-0404-4524 6.3*7,EC,16V,LEG=3-3.5mm CAP,10uF,+/-20%,DIP 180Ζ,EC,25V,LEG=3-3.5mm 4. E-C-0404-4472 Item 1. 2. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. CAP,220uF,+/-20%,DIP 180Ζ 8*7,EC,16V,LEG=3-3.
21. E-L-0407-1411 22. E-C-0404-4439 23. E-C-0404-4440 24. 25. E-C-0404-4444 26. E-C-0404-4447 27. E-C-0404-4448 28. E-C-0404-4526 29. E-C-0404-4733 30. 31. E-C-0404-4531 32. BEAD,ACM321611A151H,SMD,1 206,MID,GOTREND CAP,0.01uF,+/-10%,SMD 0603,CHIP,50V CAP,0.
50. E-IC-0401-2374 51. 52. IC-0401-2376 53. E-IC-0401-2657 54. E-IC-0401-2425 E-IC-0401-2381 55. 56. 57. B-MB-0201-0728 B-MB-0201-0729 B-MB-0201-0730 58. E-R-0405-6622 59. E-R-0405-6623 60. E-R-0405-6624 61. E-R-0405-6708 62. IC,LM358,SOP8PIN,28V,SMD,SANYO IC,24LC21,SOP8PIN,5V,SMD,MICROCHIP IC,SI9433DY,SOP8PIN,20V,SMD,SILIC IC,EPPROM,24LC16B,SOP8PIN,2.5VIC,74LVC14,SOP14PIN,3.3V,PHILIPS IC,NOT GATE,SN74LVC14ADR,SOP14PIN,SMD,3.3V,TI IC,MASCOT V,PQFP160PIN,SMD,3.
78. E-X-0415-0129 * E-X-0415-0130 CRYSTAL,12.00 MHz,49/US,+/30ppm,JEN JAAN CRYSTAL,12.
Name VLCD22574-XYZ SB ViewSonic P/N Description Parts Number BTN-PT002B1-21 PL-BT-0706-012 Button Tact SW Connector Header 12 pin, 2.
Chapter 10 CIRCUIT DIAGRAMS . 10 1 Micro-Controller MRT MV VCC3-DCV R5 R3 FB1 BED-151M1-3501(1206) FB2 BED-151M1-3501(1206) C1 PLL-VDD C2 C3 100u / 16V 0.1u 0.001u C4 10p 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 31 32 33 34 35 36 37 38 39 40 VCC5 FB3 BED-151M1-3501(1206) C5 C6 C7 0.1u 0.1u 100u / 16V C8 VCC-ADCP C9 100u / 16V 0.1u AIC1117-33CY VOUT O 10p FB4 BED-151M1-3501(1206) C12 VCC-ADCA C16 C17 0.1u 0.001u C13 100u / 16V 0.
10.2 Micro Controller and LCD power control VCC5 VCC5 0.1u Y2 12MHZ C47 4PIN 2.0mm 180"(CNN-P004W-2411) 35 15p CLK 21 CON13 R30 2 4 6 1 2.0MM3X2(90") V RESET RESET 1 GND V R VCC C48 C49 MCP810 0.1u TP4 RESET R RESET R31 1 1 14 15 16 17 100K(NP) T40 2 3 4 5 6 7 8 9 G 0R 10 IRQ- IRQ- U5 MCP810 G 20 1 3 5 R21 R22 10K 10K 10K 10K 10K 10K 10K 10K 1 10u / 25V R34 R35 33 33 U4 EA/VP P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 X1 X2 RESET INT0 INT1 T0 T1 P1.0 P1.
10.3 VGA input VCC-ADCA D3 BAV99 BAV99 A AC HDR7X2 2.0mm 180" DIP CON8 FB21 BED-121M1-1002 1 BLUE HSYNC SDA-DDC C74 10p C75 4.7p 2 BLUE GREEN RED GREEN FB22 1 BED-121M1-1002 BAV99 D6 AC R71 R72 R73 75 75 75 2 2 VCC3-DCV SDA-DDC HSYNC VSYNC SCL-DDC FB24 R74 BED-121M1-1002 C84 C85 10p 33p HSYNC+ 14 U8B 3 4 7 74LVC14 14 U8A 1 7 12M1 2 12M2 FB25 33 PA-HSYNC 1 VCC3-DCV C86 C87 C88 0.
10.4 Output connector 1 RGB-A[0..
10.5 DC-DC FOR THE MAIN POWER NOTE: ONLY ONE SET OF POWER SUPPLY WILL BE USED R90 U11 VCC12 FEEDBACK R91 0(NP) 2 VCC5-6 VCC5 150UH@3A (DIP) L2 33UH@3A (SMD)(NP) VCC5-5 FB93 BED-121L1-2601 D9 FB82 BED-121L1-2601 IN5822 C161 C162 C163 C164 C165 220u / 16V 220u / 16V 0.1u C166 5V 3A 0.001u 10p C167 C168 C169 C170 220u / 16V 220u / 16V 0.1u 0.1u 10p A R92 OUTPUT 0R L1 C GND 5 3 100u / 16V 6 GND C159 C160 0.1u 4 VIN ON/OFF 1 10K(NP) 8050SD(SK) C171 C172 C173 0.
10.6 Audio FB95 BED-121L1-2601 FB86 BED-121L1-2601 1 VCC5 VCC_AU VCC_AU C194 C195 C196 10u / 25V 0.1u 0.001u 10p 2 C193 Left-P Left-M CON12 Right-P Right-M 1 2 3 4 4PIN 2.0mm 90"(CNN-P004W-2411) VCC_AU R96 C198 C199 C200 C197 100p R97 33K 2 R99 0.1u 0.1u 5 18 19 27 16 Mute Lift Gain2 AMUTE1 10K Mode Lift Gain1 4 VDD R102 6 U16 VDD AMUTE 1 R100 10K AMUTE1 VDD 3 0R 0R Lift out R106 LEFTIN R107 20K C210 20K 0.1u 13 12 11 RIGHTIN R109 20K C211 0.
Chapter 11 ViewSonic Corporation PCB LAYOUT 58 Confidential -Do Not Copy VE150m/mb
*Readers Response* Dear Readers: Thank you in advance for your feedback on our Service Manual,which allows continuous improvement of our products. We would appreciate your completion of the Assessment Matrix below, for return to ViewSonic corporation. Assessment A.
