ViewSonicメーカーVSXXXXXの使用説明書/サービス説明書
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V iewSonic VG2427wm Model No. VSXXXXX 23.6” Color TFT LCD Display (VG2427wm_SM Rev . 1a Mar . 2009) ViewSonic 381 Brea Canyon Road, W alnut, California 91789 USA - (800) 888-8583 Service Manual.
2 Copyright Copyright © 2008 by V iewSonic Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, tran scribed, stored in a retrieval system, or translated into.
3 T ABLE OF CONTENTS 1. Precautions and Safety No tices ......................................................................................... 4 2. Specifi cation .....................................................................................
4 1. Precautions and Safety Notices 1. Precautions and Safety Notices 1.1 Safety Precautions This monitor is manufactured and tested on a ground principl e that a user ’ s safety comes first. However , improper use or installa tion may cause damage to the monitor as we ll as the user .
5 1.4 Handing and Placing Methods Correct Methods: Incorrect Methods: Only touch the metal frame of the LCD panel or the front cover of the monitor. Do not touch the surface of the polarizer. Surface of the LCD panel is pressed by fingers and th at may cause “Mura.
6 Place the monitor on a clean and soft foam pad. Placing the monitor on foreign object s. That could scratch the surface of t he panel or cause “Mura.” Place the monitor on the lap, the panel surface must be upwards. The panel is placed facedown on the lap.
7 2. S pecification.
8 3. Front Panel Function Control Description Use the buttons on the front control panel to display an d adjust the OSD controls which display on the screen. The OSD controls are explained at the top of t he next page and are defined in “M ain Menu Controls”.
9 Do the following to adjust the display setting: 1. To display the Main Menu, press button [1]. NOTE: All OSD menus and adjustment sc ree ns disappear automatically after about 15 seconds. This is adjustable through the OSD timeout setting in the setup menu.
10 Main Menu Controls Adjust the menu items shown below by using the up and down buttons. Control Explanation Auto Image Adjust automatically sizes, ce nt ers, and fine tunes the video signal to elimi nate waviness and distortion. Press the [2 ] button to obtain a sharper image.
11 Information displays the timing mode (video si gnal input) coming from the graphics card in the computer, the LCD model number, the serial num ber, and the ViewSonic® website URL. See your graphics card’s user guide for instructions on changing the resolu tion and refresh rate (vertical frequency).
12 Language Select allows the use r to choose the language used in the menus and control scre ens. Resolution Notice advises the optimal resolution to use. OSD Position allows the user to move the OSD menus and co ntrol screens. OSD Timeout sets the length of time the OSD screen is displayed.
13 4. Circuit Description 4.1 Main Board U401 NT68667UFG/C The NT68667 is a highly integrated flat panel di splay cont roller that interfaces analog, digital, and video inputs.
14 Pin Assignment.
15.
16.
17.
18 U701 AP1 1 17D33L and U704 AP1 1 17E18LA: DC power convert, convert to 3.3v and 1.8v . AP1117 is a low dropout positive adjustabl e or fixed-mode regulator with 1A out put current capability.
19 Pin Descriptions Name I/O Pin # Function Adj (GND) I 1 A resistor divider from this pin to the Vout pin and ground sets the output voltage. (Ground only for Fixed-Mode) Vout O 2 The output of the regulator. A minimum of 10uF capacitor (0.15 ESR 20 ) must be connected from this pin to ground to insure stability.
20 4.2 Power Board IC901 LD7576 The LD7576X series bring high performance, combines with highly integrated fu nctions, protections and EMI-improve solution. It’s an ideal solution for those co st-sen sitive system, reducing component count and o verall system cost.
21 Block Diagram Pin Name Function 1 CT This pin is to program the frequen cy of the low frequency timer. By connecting a capacito r to ground to set the OLP delay time. And this pin can be used for latch mode protect ion. By pulling this pin lower than 0.
22 IC801 T A9687GN TA 9687 is a high performance, cost-effective CCFL (Col d Cathode Fluore scent Lamp) controll er designed for driving large-size Liquid Crystal Display (LCD) appli cations requiring 2 to 6 CCFLs. The controller converts unregulate d DC voltages into a nearly sinusoidal lamp voltage and current waveforms.
23 Pin Description Pin No. I/O1 Names Description 1 I VSEN Voltage Sense Feedback 2 I/O SSTCMP Capacitor for Soft-Start and Loop Compensation 3 I/O CT Timing Resistor and Cap acitor for Operation and .
24 5 . A d j u s t m e n t P r o c e d u r e 5.1 White balance, Luminance adjustment Approximately 2 Hours should be allo wed for warm up before proceeding White-Balance adjustme nt. Before started adjust white balance, please setting the Chroma-C7120 MEM.
25 e. Adjust sRGB (sRGB) color-temperature 1. Switch the Chroma-C7120 to RGB-mode (with press “M ODE” butt on) 2. Switch the MEM.channe l to Channel 4 (with up or down arrow on Chroma-C7120) 3.The LCD-indicator on Minolta-CA210 will show x = 313 ±12, y = 329 ±12, Y = 80 ±15 cd/m 2 10.
26 Hardware Connect status 5.2.2 Up date the NOV A TEK’S firmware Y ou should jump the pin to “For Flash” at ISP Board LPT Cabl e VGA Cable Connect to the PC LPT Connect to the VSC V A2427wm.
27 Double click “W riter .exe” This tool can auto detect the right SCALAR programe spee d,the process as follow:.
28 When auto detect is finished,click “Loa d Hex”,then chosse the firmware that you want to update Click “Auto”,then the update will begin. W ait for a moment until the bar is 100%,the program windows will show “Programing Success”.This mean s the update is successful.
29 5.3 DDC Key in Procedure Note: 1. Every time after replacing the main board, you have to do the DDC key in. 2. If you find the DDC does not conform to the LCD TV, you have to do the DDC key in. 5.3.1 Equipment Needed - VG2427wm - PC (Personal compute r) - LPT cable - 12V DC - Firmware upgrade pro gram - DDC Card 5.
30 For analog a. Double-click ， appear as follow Figs ： b. Click . c. Key in the Serial Number printed on the barcode label, then click “OK”.
31 d. Unit appears the following Fig, writer completed. 12 codes, for example. R3V080100001.
32 6. T roubleshooting Flow Chart.
33 7 . B l o c k D i a g r a m 7.1 Main Board Scalar IC NT68667 (Include MCU, ADC, OSD) (U401) D-Sub Connecto r (CN101) EEPROM PM25L V020-100SCE (U402) DVI_SCL DVI_SDA LCD Interface (CN302) Key Contro.
34 7.2 Power Board DIM EMI filter S tart Circuit: R904, R905,R906 PWM Control IC LD7576 T ransfor mer AC input 16V ON/OFF Control Feedback Circuit T ransfor mer MOSFET Lamp ON/OFF 5V Bridge Rectifier .
35 8 . S c h e m a t i c D i a g r a m s 8.1 Main Board 1 6 2 7 3 8 4 9 5 11 12 13 14 15 10 17 16 C N 101 DB 15 R120 1K 1/ 16W 5% R 102: 100 Ohm ->0 Ohm I/O1 1 GN D 2 I/O2 3 I/O 3 4 VD D 5 I/O 4 6 .
36 +5V +5V Q302 2N 3904S-R TK/P S R3 0 2 220 OH M 1/ 4W PPW R_ON # 5 V CC3 .3 V CC3 .3 1 2 FB 3 0 1 120 OH M R4 4 5 3. 9K OH M 1/ 16W L E D_ G RN/B L UE 5 POWER _KEY # 5 KEY 2 5 KEY 1 5 LED _LF _BLU E 5 LED _OR AN GE 5 R44 3 3. 9K OH M 1/ 16W R3 0 3 4K7 1/ 16W 5% 1 2 Z D 401 UD Z SN P5.
37 C 703 N C / 0. 1U F 16V O E M MO D E L Siz e Re v Da te Sheet of T PV M OD EL PC B N AM E 称爹 T P V ( T op V i ctor y E l e ctro n i cs Co . , L td . ) Key Component 絬 隔 瓜 絪 腹 <D o c > 1 . B 46 T ues day , March 17, 2009 < 称爹 > 4.
38 EE_WP T0M 3 T0P 3 T1M 3 T1P 3 T2P 3 T2M 3 T3M 3 T3P 3 TC L K 1 P 3 TC L K 1 M 3 T4M 3 T6M 3 T4P 3 T7P 3 T5P 3 TC L K 2 M 3 T6P 3 T7M 3 TC L K 2 P 3 T5M 3 C4 0 3 1uF 16V C0 6 03 C4 0 4 1uF 16V C 060.
39 8.2 Power Board R903 100K O MH 2W + - 5% L904 Coi l VSC CHANGE JUMP WIRE REV:B ADD CN903(USB 称ノ ) R927 10K 1/10W 1% +5V +16 V +5V C 921 1000pF 250V Q903 KT D 1028 C 912 0. 001uF 1 4 2 3 L901 27mH R962 100 O HM 1/4W 1 2 3 4 5 6 7 8 9 10 11 12 13 C N 902 CO NN R920 100 O HM 1/4W R946 100OH M 2W D 903 I N 4148 C 940 0.
40 C8 1 0 0. 0033 uF 6 2 7 5 1 8 P T 801 POWER X' FM R VSC S2 1 G2 2 S1 3 G1 4 D1 5 D1 6 D2 7 D2 8 Q806 AO4620 VSEN 1 SST C M P 2 CT 3 RT 1 4 GN D A 5 PD R 2 6 GN D P 7 NDR2 8 NDR1 9 PD R 1 10 VD D A 11 TI ME R 12 PW M 13 I SEN 14 OVPT 15 EN A 16 I C 801 t a9687GN-A-0-T R R8 30 6K8 1/ 8W 5% R8 28 6.
41 SH U T D OW N 1 BY P ASS 2 RIN- 3 GN D 4 GN D 5 LI N - 6 VOLU M E 7 SE/ BT L 8 LOU T - 9 VD D 10 LOU T + 11 GN D 12 GN D 13 RO UT + 14 VD D 15 RO UT - 16 IC6 0 1 APA2069J I T U L C6 1 4 0.
42 8.3 Key Board R 001 3K 1/ 10W 1% 3 4 1 2 LED 001 LED C 002 0. 1uF 16V UP KEY2 POWER KEY1 BLU E Y ELLOW GN D Y ELLOW BLU E C0 0 1 0. 1 uF 16V 1 3 5 2 4 6 8 7 9 10 SW01 SW UP DO WN DOWN 1 2 3 4 5 6 CN0 0 1 C ABL E GN D R 002 3K 1/ 10W 1% D1 0 1 UDZS NP 5 .
43 8.3 USB Board C710 0.1uF / 16V GND_ U DM 3 GND_ U DP3 C711 0.1uF / 16V DM 4 C712 0.1uF / 16V DP4 C706 10nF16V GND_ U C707 0.1uF / 16V GND_ U DM 4 DP3 R732 NC / 0R 05 1/ 16W 1 2 ZD 707 NC / EGA10603.
44 9 . P C B L a y o u t D i a g r a m s 9.1 Main Board.
45.
46 9.2 Power Board.
47.
48 9.3 Key Board 9.3 USB Board.
49.
50 10. Exploded Diagram and Exploded Part s List 10.1 EPL.
51 Item Description Part Number Q'ty 1 BEZEL A34G0935 K RB1B0130 1 2 LENS A33G0529 1 1L0100 1 3 KEY PCB KEPC8AA9 1 4 KEY PAD A33G0528 AS 1L0100 1 5 PANEL 750GLM236H1111 N0VS 1 6 POWER BOARD PWPC9.
52 10.2 PPL Item Description Part Number Q'ty 1 Signal cable 089G 728CAA DB 1 2 Audio cable 089G 17356X553 1 3 DVI cable 089G1748HA A AC 1 4 Power cable 089G402A18N IS 1 5 EPS(top) Q44GD020101 1 .
53 1 1 . R e c o m m e n d e d S p a r e P a r t s L i s t TDRMNDDKWBVSPC Location Part Number Description Remark 019G6014 1 TIE FOR STRAP 023G3178709 3A LOGO 041G 68508 A CONTROL CARD 050G 600 1 W WHITE STRAP 050G 600 2 HANDLE1 050G 600 3 HANDLE2 052G 1 185 24 VSC T APE 052G 1 186 SMALL T APE 052G 121 1 A CONDUCTIVE T APE 55MM *45MM *0.
54 A34G0936 KR 3B0100 REAR COVER 23.6" A85G0133101 SHIELD-AC AM1G1740 12225 CR3 SCREW 040G 45762412B CBPC LABEL CN701 033G3802 9B Y W W AFER CN404 033G8019 6C CONN.
55 R105 061G0402101 RST CHIPR 100 O HM +-5% 1/16W R109 061G0402101 RST CHIPR 100 O HM +-5% 1/16W R1 1 1 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R1 13 061G0402101 RST CHIPR 100 OHM +-5 % 1/16W R1 19 0.
56 R401 061G0402470 0F RST CHIPR 0402 470 OH M +-1% 1/16W R1 10 061G0402471 RST CHIPR 470 OHM +-5 % 1/16W R303 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R138 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R137 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R136 061G0402472 RST CHIPR 4.
57 C302 065G0402224 17 CAP CER 0.2 2UF -20%-80% C401 065G0402224 17 CAP CER 0.2 2UF -20%-80% C102 065G0402473 12 CHIP 0.047 UF 16V X7R C106 065G0402473 12 CHIP 0.047 UF 16V X7R C108 065G0402473 12 CHIP 0.047 UF 16V X7R C1 10 065G0402473 12 CHIP 0.047UF 16V X7R C1 1 1 065G0402473 12 CHIP 0.
58 ZD401 093G 39S 34 T UDZS NP5.6B ROHM ZD402 093G 39S 34 T UDZS NP5.6B ROHM ZD403 093G 39S 34 T UDZS NP5.6B ROHM D102 093G 64 42 PP BA V70 SOT -23 D103 093G 64 42 PP BA V70 SOT -23 R148 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R149 061G0402472 RST CHIPR 4.
59 CN801 033G8021 2E F WA FER IC903 056G 139 3A IC PC123Y22FZ0F IC601 056G 616 34 IC AP A2069JITUL 2.6 W*2 PDIP-16 NR901 061G 58809MEN RST NTCR 8OHM £«£ 20£¥ 4A XIANZHENG C904 063G107K224 UM X2 CAP 0.
60 0M1G 930 8120 SCREW HS1 Q90G6263 6 HEA T SINK 705GQ893039 D908 ASS'Y D908 093G 60278 DIODE SP1060 ITO-220 SECOS 0M1G 930 8120 SCREW HS2 Q90G6263 6 HEA T SINK 705GQ893040 D906 ASS'Y D906 0.
61 R840 061G0603105 RST CHIPR 1M OHM +-5% 1/10W R841 061G0603105 RST CHIPR 1M OHM +-5% 1/10W R930 061G0603243 1F RST CHIPR 2.43K OHM +-1% 1/10W R927 061G0603360 1F RST CHIPR 3.6K OHM +-1% 1/10W R808 061G0603390 0F RST CHIPR 390 OHM +-1% 1/10W R845 061G0603512 RST CHIPR 5.
62 R935 061G1206101 RST CHIPR 100 OHM +-5% 1/4W R920 061G1206101 RST CHIPR 100 OHM +-5% 1/4W R919 061G1206101 RST CHIPR 100 OHM +-5% 1/4W R918 061G1206101 RST CHIPR 100 OHM +-5% 1/4W R912 061G1206221 RST CHIPR 220 OHM +-5% 1/4W R909 061G1206339 RST CHIPR 3.
63 C929 065G1206102 72 CAP CHIP 1206 1000PF K 500V X7R C912 065G1206102 72 CAP CHIP 1206 1000PF K 500V X7R FB902 071G 57G800 B CHIP BEAD HCB3216KF-800T30 BULL WILL D806 093G 64 42 P BA V70 SOT23 BY P AN JIT D807 093G 64 42 P BA V70 SOT23 BY P AN JIT D808 093G 64 42 P BA V70 SOT23 BY P AN JIT ZD802 093G 39S 24 T RLZ 5.
64 Q37G0139013 VSC 23.6 HINGE ASS'Y Q40G 58170931A HT POT LABEL Q40G0001624 4A P ALLET LABEL Q40G000270927A EP A LABEL Q44G6002123 93 P APER BOARD Q44G6002CP1A27 P APER CAP Q44G9003220 CORNER P A.
65 R718 061G0402104 RST CHIPR 100 KOHM +-5% 1/16W R719 061G0402104 RST CHIPR 100 KOHM +-5% 1/16W R720 061G0402104 RST CHIPR 100 KOHM +-5% 1/16W R724 061G0402105 RST CHIPR 1MOHM +-5 % 1/16W R709 061G0402153 RST CHIP 15K 1/16W 5% R726 061G0402153 RST CHIP 15K 1/16W 5% R721 061G0603120 2F RST CHIPR 12 KOHM +-1% 1/10W R750 061G0603360 1F RST CHIPR 3.
66 E08904 089G 17356X553 AUDIO CABLE Q41G2401709 3A V A2413WM SERVICE INSER T Q41G2401709 7A VG2427WM QSG FOR LI Q45G2007M0102A PE BAG FOR MANUAL Q70G2401709 3A VG2427WM CD MA NUAL 040G 581 26704 SHIPPING LABEL 040G 58162435A P/N LABEL FOR MANUAL PE BAG Q40G 24N709 2A RA TING LABEL Q40G 581709 1B CART ON LABEL Q40G0001709 2A SN LANEL 12.
67 * Reader ’ s Response* Dear Readers: Thank you in advance for your feedback on our Service Manual, which allows continuous improvement of our products. W e would appreciat e your completion of the Assessment Matrix below , for return to V i ewSonic Corporation.
デバイスViewSonic VSXXXXXの購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
ViewSonic VSXXXXXをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはViewSonic VSXXXXXの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。ViewSonic VSXXXXXの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。ViewSonic VSXXXXXで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
ViewSonic VSXXXXXを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はViewSonic VSXXXXXの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、ViewSonic VSXXXXXに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちViewSonic VSXXXXXデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
