PV722i/PV722E SERVICE MANUAL The Monitor Specialists EDITION 1 JAN. 2003 CTX CTX TABLE OF CONTENTS CONTENTS Sections 1. Scope (For PV722i) 2. Input requirements (For PV722i) 3. Electrical Characteristics (For PV722i) 4. Scope (For PV722E) 5. Input requirements (For PV722E) 6. Electrical Characteristics (For PV722E) 7. Trouble Shooting 8. System Block Diagram 9. Inverter Board I/O Connection 10. IC Pin Configuration 11. Pin Assignment 12. Parts List Appendix 1. Main Board Circuit Diagram 2. Assembly Explosion Drawing Service Manual PV722i/PV722E PAGE 3 3~ 5 5~11 12 13 15~22 23~24 25 26 27~30 31~36 37 -1- Service Manual PV722i /PV722E Copyright © 2002 by Chuntex Electronic Co., Ltd. CTX CTX The CTX SERVICE MANUAL is published by Chuntex Electronic Co., Ltd All rights reserved. No part of this manual may be used, copied, reproduced, or transmitted in any form or by any means for any purpose without the express written permission of the publisher. The publisher has been trying its best to make this publication perfect, and in this manner takes no responsibility for the use of any of the materials or methods described in this manual, or for the products thereof. Neither will the publisher be responsible for any damages caused by misuse or misquotation. Information in this manual is subject to change by the publisher without any notice in advance. CTX is a registered trademark of Chuntex Electronic Co., Ltd. -2- CTX CTX Service Manual PV722i/PV722E The Specification of PV722i 1. SCOPE This specification defines the design and performance requirements for the 17" SXGA TFT LCD display monitor."PV722i " There are 3 models of " PV722i" in each own's project code. Project Code: The common features of the 3 models of "PV722i" are listed in the following table: Feature 1 2 3 4 5 6 7 8 9 10 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 11 12 Description Universal input AC/DC Adaptor Digital Visual interface (DVI-D) TMDS 1 Ch 165MHz Analog RGB interface (VGA ) 30~80KHz, 59~75Hz, 135MHz 17" SXGA 1280*1024 multi-view-angle (MVA), TFT LCD panel Function keys * 6 : Power On/Off, ESC, (up), (down), (enter),signal source contrast function, for brightness function Direct Acess function keys : for Green/Amber LED indicator for power on/power saving Plug & play support with DDC2B protocol installed. Power saving mode compliant with Energy Star OSD (on screen display) MENU operation Brightness adjustment Contrast adjustment Auto tune function (VGA) Color selection Image adjustment Position adjustment Language selection Reset function Source selection (DVI/VGA) OSD information of input status Panel Rotation function for Portrait Graphic Application The differential features of the 3 models of PV722i are listed in the following table Model Project Feature ISO 13406-2 View Direction Class Pixel Faults Class Audio Modual (speaker*2,Stero earphone jack) Direct "ESC" key for Audio mute Volume Adjustment(OSD) PV722i (ISO13406-2 Class ) LKC17SS2CC No No No PV722i (ISO13406-2 Class , 0 pixel Fault) LKC17SS0CC No No No PV722i (ISO13406-2 Class + Audio) LKC17SS2CC01 Yes Yes Yes 2. INPUT REQUIREMENTS 2.1 Input Power 2.1.1. Power Source 2.1.2. Power Consumption 110 Vac, 240 Vac, + -10%, 50/60 Hz (48W,2.5 plug) 1.PV722I model with Audio (LKC17SS2CC01) Normal operating mode : 43W Power saving mode a. Audio module is operating at full power(max) Power switch off -3: 3W (PC off) : 9W b. Audio module is operating at no signal input (max) : 5W Service Manual PV722i /PV722E 2. PV722I model without Audio (LKC17SS4CC /LKC17SS2CC/ LKC17SS0CC) Normal operating mode : 40W 2.1.3. AC Line Drop Out 2.1.4. AC Wave Distortion 2.1.5. In-rush Current 2.1.6. Power Cord 2.1.7 DC Power cable Power saving mode : 3W CTX CTX Power switch off : 3W (PC off) Picture must not disappear while AC 100 V input drop out(10ms, 100%) 10% max. permitted 50 A max at 230 Vac cold start Detachable, 3P with ground type. Detachable from display unit and captive with AC/DC adapter. 2.2 Display Input 2.2.1. Analog Input RGB Video Analogue, 0.0 to 0.7 V peak to peak Separate RGB Input impedance 75 Ohm Positive polarity Separate horizontal & vertical sync (3.3V & 5V) Low level 0.8 V maximum High level 2.0 V minimum Positive or negative polarity a. Detachable Mini D-sub 15 pin male in two ends signal cable. b. A female Mini D-sub 15 pin base . Pin 9 Pin 1 Red Pin 10 Pin 2 Green Pin 11 Pin 3 Blue Pin 12 Pin 4 No Connection Pin 13 Pin 5 Ground Pin 6 R Return Pin 14 Pin 7 G Return Pin 15 Pin 8 B Return 2.2.2 Digital Input Input Interface Digital Input connection DVI-D V.1 TMDS 165MHz 1-Channel a. Detachable DVI-D male connector in two ends signal cable: b. A female DVI-D connector in monitor side. DVI-D 1-Channel Pin Assignment Pin 1 2 3 4 5 6 7 8 Signal Assignment T.M.D.S Data 2T.M.D.S Data 2+ T.M.D.S Data 2 Shield NC NC DDC Clock DDC Data NC Pin 9 10 11 12 13 14 15 16 Signal Assignment T.M.D.S Data 1T.M.D.S Data 1+ T.M.D.S Data 1 Shield NC NC +5V Power Ground Hot Plug Detect Pin 17 18 19 20 21 22 23 24 Signal Assignment T.M.D.S Data 0T.M.D.S Data 0+ T.M.D.S Data 0 Shield NC NC T.M.D.S. Clock Shield T.M.D.S. Clock+ T.M.D.S. Clock- 2.2.1.1 Sync Signal Analog Input Connection D-SUB-5V Ground Ground SDA H. Sync & Composite sync V. Sync SCL -4- CTX CTX Service Manual PV722i/PV722E 2.3 Audio Input (LKC17SS2CC01) 2.3.1 Audio Input Signal Right &Left channels. Input level : 1Vrms(typ), 2Vrms(max) Input Impedance : 15Kohm a. Detachable stereo phone head in two ends signal cable. b. A female stereo phone jack base. 2.3.2 Audio Input Connection 3. ELECTRICAL CHARACTERISTICS 3.1 LCD Panel 3.1.1. Type 3.1.2. Pixel structure 17" diagonal, SXGA resolution, color TFT-LCD R/G/B sub-pixels in vertical stripes 1280 x 1024 array matrix aSi TFT active matrix (MVA) 16 million colors. 3H hard coating ,anti-static,anti-glare Integral CCFT , Type to support field replacement. Life time 30000 hours @ 25C, 50% of initial value. 3.1.3. Gray scale 3.1.4. Surface treatment 3.1.5. Backlight 3.1.6 Pixel Faults PV722i (ISO13406-2 Class + 0 pixel Fault) 0 0 0 0 0 0 Model Pixel Faults type Type1 Bright Pixels (Note 2) Type2 Dark Pixels (Note 3) Type3 Fault Pixels / Sub-Pixels(Note 4) Type4 Cluster of type1 or type 2 faults(Note 5) Type5 Cluster of type3 faults (Note5) Type6 Total Pixel Faults PV722i PV722i (ISO13406-2 Class ) 5 5 3 2 3 8 3 3 5 0 3 5 PV722i (ISO13406-2 Class + Audio) 3 3 5 0 3 5 -5- Service Manual PV722i /PV722E CTX CTX Note 1 : The spec meets ISO/FDIS 13406-2 Pixel Faults Class requirements. Note 2 : Bright pixels in full black pattern. Note 3 : Dark pixels in full white pattern Note 4 : fault Pixel / Sub-Pixel : The pixel or sub-pixel is abnormal but not bright/dark pixel. Note 5 : Fault Cluster : Two or more Pixels/Sub-pixels with faults within 5 * 5 block of pixels. 3.2 Modes and Timing Compability 3.2.1 Analog Table 1. Supported Timing VESA Standard mode : Display Format Horizontal Dots Vertical lines Horizontal Frequency ( KHz) Vertical Frequency ( Hz ) Pixel Rate ( MHz ) H. Sync. Polarity A S ( Period ) B S ( Pulse Width ) C S ( Back Porch ) D S ( Active Area ) E S (Front Porch ) V. Sync. Polarity O ms ( Period ) P ms ( Pulse Width ) Q ms ( Back Porch ) R ms ( Active Area ) S ms ( Front Porch ) IBM VGA 720 640 400 480 31.469 70 59.94 28.322 25.175 31.778 3.813 1.907 25.422 0.636 + 16.683 0.064 1.048 12.711 15.253 0.318 VESA 640 480 37.861 72.809 31.5 26.413 1.270 4.063 20.317 0.763 13.735 0.079 0.739 12.678 0.237 VESA 640 480 37.5 75 31.5 26.667 2.032 3.810 20.317 0.508 13.333 0.080 0.427 12.800 0.027 VESA 800 600 37.879 60.317 40 + 26.4 3.2 2.2 20.0 1.00 + 16.579 0.106 0.607 15.840 0.026 VESA 800 600 48.077 72.188 50 + 20.8 2.4 1.28 16.0 1.12 + 13.853 0.125 0.478 12.480 0.770 VESA 800 600 46.875 75.000 49.5 + 21.333 1.616 3.232 16.162 0.323 + 13.333 0.064 0.448 12.8 0.021 Display Format Horizontal Dots Vertical lines Horizontal Frequency ( KHz) Vertical Frequency ( Hz ) Pixel Rate ( MHz ) H. Sync. Polarity A S ( Period ) B S ( Pulse Width ) C S ( Back Porch ) D S ( Active Area ) E S (Front Porch ) V. Sync. Polarity O ms ( Period ) P ms ( Pulse Width ) Q ms ( Back Porch ) R ms ( Active Area ) VESA 1024 768 48.363 60.004 65.0 20.667 2.092 2.462 15.754 0.369 16.666 0.124 0.6 15.88 VESA 1024 768 56.746 70.069 75 17.707 1.813 1.920 13.653 0.321 14.272 0.106 0.513 13.599 VESA 1024 768 60.023 75.029 78.75 + 16.660 1.219 2.235 13.003 0.203 + 13.238 0.050 0.466 12.795 VESA 1152 864 67.5 75 108 + 14.815 1.185 2.370 10.667 0.593 + 13.333 0.044 0.474 12.8 VESA 1280 1024 63.981 60.013 108 + 15.631 1.180 2.065 11.797 0.590 + 16.663 0.047 0.594 16.006 VESA 1280 1024 79.976 75.025 135 + 12.504 1.067 1.837 9.481 0.119 + 13.329 0.038 0.475 12.804 -6- CTX CTX VGA Support Mode 1280 * 1024 @ 70Hz 1280 * 1024 @ 72Hz 1280 * 960 @ 60Hz,70Hz,72Hz,75Hz 1208 * 720 @ 60Hz 1152 * 864 @ 60Hz, 70Hz,72Hz 1024 * 768 @ 72Hz 800 * 600 @ 70Hz 640 * 480 @ 70Hz 640 * 350 @ 70Hz Service Manual PV722i/PV722E Fig. 1 Timing chart VIDEO H SYNC B C D E Video V Sync P Q R S o 3.2.2 Digital DVI Support mode 640 * 480 @60Hz 800 * 600 @60Hz 1024*768 @60Hz -7- Service Manual PV722i /PV722E 3.3 Plug & Play 3.4 Scanning characteristics Horizontal frequency Refresh rate CTX CTX VESA DDC 2B, DVI support DDC 2B+ standard DDC 2B data transmission only for I2C BUS interface card. VGA 30KHz to 80KHz 59Hz to 75Hz DVI 30KHz to 66KHz 59Hz to 61Hz 3.5 Audio Module (Optional , for LKC17SS2CC01 model) 2.2.1 Input Level : 1Vrms(typ),2Vrms(max) 2.2.2 Output Power : 1W * 2 (10% THD,1KHz) 2.2.3 Total Harmonic Distortion (THD).....0.3%(0.5W*2, 1KHz) 2.2.4 Frequency Response ± 3dB : 330 ~ 20KHz 3.6 User Controls and Indicator 3.6.1 Power ON/OFF Switch 3.6.2 LED Indicator 3.6.3 OSD 3.6.3.1 Buttons 3.6.3.2 OSD Menu Level 3.6.4 Hot Keys Function 3.6.4.1 Contrast ( ) Press " " to pop up ;then press " " or " " to adjust Contrast up or down. ) Press " " to pop up ;then press " " or " " to adjust Brightness up or down. Press "Esc" directly to disable speakers, while speaker in normal state. Press "Esc" directly to enable speakers, while speaker in audio mute state. "Esc" key is for Mute On and Off function " " key is for increasing volume function. " " key is for decreasing volume function. 3.6.4.6 Signal source key Remark : "*" : for LKC17SSCC01 model. Press "ESC" key is for Mute ON and OFF function directly. Press "Signal source" key to select VGA or DVI input. ESC , , , ,Signal source The switch control scaler power down and turn off panel. The LED color shall indicate power status as shown in paragraph 3.7 See Table 2. PV722 OSD Control Map 3.6.4.2 Brightness ( *3.6.4.3 Mute On ( *3.6.4.4 Mute Off ( ) ) *3.6.4.5 In monitor power saving mode -8- CTX CTX Service Manual PV722i/PV722E Table 2 PV722 OSD Control Map 1. VGA-D15 input Detect Adj. Detect Adj. Detect Adj. Level 1 Brightness Contrast *Audio Mute *Volume Auto Tune Level 2 Level 3 Level 4 Adjustment Scale Adjustment Scale 9300 K 6500 K User R/G/B select Color Moive Tint Flesh Tone (Y) Brightness (Y) Contrast Reset Clock Adjustment Scale Adjustment Scale On/Off H-Position Image Position Adjustment Scale Adjustment Scale Adjustment Scale Adjustment Scale Adjustment Scale Adjustment Scale V-Position Center H-Position OSD Position V-Position Center English (select) German (select) French (select) Spanish (select) Italiano (select) (option) Yes/No DVI/VGA (select) Adjustment Scale Adjustment Scale Adjustment Scale Adjustment Scale Adjustment Scale Adjustment Scale Color Main Menu Image Phase Smooth Position Language Reset Source -9- Service Manual PV722i /PV722E CTX CTX Remark : "*" : for LKC17SS2CC01 model 2.DVI input Detect Adj. Detect Adj. Detect Adj. Level 1 Brightness Contrast *Audio Mute *Volume Level 2 Level 3 Level 4 Adjustment Scale 9300 K 6500 K User R/G/B select Color Tint Flesh Tone (Y) Brightness (Y) Contrast Reset Adjustment Scale Adjustment Scale Adjustment Scale Adjustment Scale Adjustment Scale Adjustment Scale Color Moive Main Menu Image Smooth On/Off H-Position Adjustment Scale Adjustment Scale Adjustment Scale V-Position Center Position OSD Position English (select) Language German (select) French (select) Spanish (select) Italiano (select) (option) Yes/No DVI/VGA (select) Reset Source Remark : "*" : for LKC17SS2CC01 model. 3.6.5 Accessory OSD Indications Signal out of range An input signal which is outside the range defined in Section 3.4 shall cause the monitor to display a message Signal Out of Range. When the signal cable is not plugged into PC or when the horizontal or vertical sync are absent and when the monitor is turned on. After 5 sec isn't to detect H or V Sync then show "No Signal Input" 3 sec, and then show " Power down" message on screen 2 sec. If first turn on the monitor, shows "No Signal Input" 30 sec. No Signal Input and power down -10- CTX CTX Service Manual PV722i/PV722E 3.7 Pow ...