} PREPARED BY : DATE 1 1 SPEC No. FILE No. ISSUE : PAGE: 7 SHARF= TFT LIQUID CRYSTAL DISPLAY GROUP SHARP CORPORATION CDCPTCTPATTnhl LCY-99050 April. pages 19. 1999 APPLICABLE GROUP TFT LIQUID CRYSTAL DISPLAY GROUP DEVICE SPECIFICATION FOR LAMP UNIT MODEL No. L Q 0 DD B 0 0 0 4 : 0 CUSTOMER'S APPROVAL DATA DEPARTMENTGENERALMANAGER DEVELOPMENTENGINEERING DEPT.11 TFT DIVISION I TFT LIQUID CRYSTAL DISPLAY GROUP SHARP CORPORATION I SHARI= LCY99050- > These specification (SHARP) sheets are the proprietary product of SHARP and include materials protected under copyright CORPORATION of SHARP. Do not reproduce or cause any third party to reproduce them in any form or by any means, electronic or mechanical, written permission for any purpose, in whole or in part, without the express of SHARP. > The _--_ device listed in these specification sheets was designed and manufactured for use ink A equipment. > In case of using the device for applications transportation (aircraft, trains, automobiles, various safety related equipment consideration that appropriate such as control and safety equipment etc. ), rescue and security equipment which require higher reliability for and and safety, take into measures such as fail-safe functions and redundant system design should be taken. > Do not use the device for equipment as aerospace applications, control equipment > SHARP that requires an extreme level of reliability, telecommunication equipment(trunk for any damage resulting born the use of the device which does not comply with the instructions and the precautions specified in sheets. Contact and consult with a SHARP sales representative device. lines), nuclear power and medical or other equipment for life support. assumes no responsibility these specification such for any questions about this 1 SHARP LCY99050- (1) Subject This literature is applied for LQODDB0004 which is the lamp unit for 21cm (8.4”) TIT-LCD module. (2) Introduction This backlight unit is a service part for 21cm TFT-LCD module (LQO84VlDG21) is designed to be replaceable and exactly same as originally (3) Construction of which backlight installed one for above model. and Outline The unit is composed of cold cathode fluorescent tubes, I/O wires (including connectors), and lamp holders. * Outline drawing of lamp unit : See Fig. 1. (4) Input / Output terminals 4-1) I/O terminal order Table 1 Description Pin No. Symbol i/o 1 VHIGH i Power supply for lamp (High voltage side) 2 NC - No connection 3 VLOW i Power supply for lamp (Low voltage side) 4-2) I/O connector 1) Installed 2) Mating socket housing connector ; BHR-03VS-1 ; SM02(&0)B-BHS ( produced by Japan Solderless Terminal (5) Electrical characteristics The characteristics of single lamp are shown in the following table 2. Table 2 [NotellAvailable [Note21 Calculated current range considering value for reference. light-adjustment. ) 2 SHARI= [Note31 LCY99050- Since lamp is consumable, the life time written guaranteed in this specification above is referential value and it is not sheet by SHARP. Lamp life time is defined that it applied either 1 or 2 under this condition. (Continuous turning on at Ta=25”C, ?3”C,ILr6mArms) 1. Brightness becomes 50% of the original value under standard condition. 2. Kick-off voltage at Ta=O”C exceeds maximum value, 1500 Vrms. (6) Optical characteristics Table 3 Parameter Symbol MIN. TYP. Luminance YL - 28,000 - Chromaticity X 0.278 0.288 0.298 Y j 0.245 0.255 0.265 Above value is the characteristics (7) Environmental unit cd/m2 Remarks 1~=6.OmA . (Tentative Value) of the lamp itself with the inverter condition Followingfemperature module MAX. ranges indicate LQ084VlDC21 - ____------ ambient condition to be guaranteed by SHARP for the LCD which the lamp unit is incorparated. Table 4 Item Storage temperature Operating (Note11 range temperature Humidity: Maximum Symbo 1 range (Ambient) 95%RH Max.(Ta wet-bulb temperature No condensation. Unit Tstg Temperature -25 -.-t70 Topa 0 _ +.55 “C 540°C) at 39°C or less.(Ta>40”C) 3 “C Remarks (Note11 SHARP LCY9905054t 10 198.620.5 Fig,. 1. Outline drawing of Lamp unit * 4 SHARP LCY99050- 5 (8) Procedure to exchange Lamp unit Lamps for the LCD module can be worn out, so please replace them to new lamps when needed in accordance with the following. Please make sure that power is off before you replace them to prevent you from getting an electrical shock. Please insert the lamp with care while replacing. Please be careful for any dust goes in. 0 Remove 2 screws which holds the Lamp unit. (refer to Fig. 2) @ Slide the Lamp unit to the “B” direction. 0 Remove the Lamp unit. (“C’direction) @ Replace the new Lamp unit to the “ D “direction and slide the unite to the “E” direction. (refer to Fig.3) @ Tighten the 2 screws to lix the Lamp unit along the screw gap of. hole. The screw torque should be maximum 1.6kgf * cm. If you tighten the screw over 1.6kgf.cm, the screw should be destroyed. Please be careful. @ Please insert the lamp with care while replacing. Please be careful for any dust that goes in. Please make sure that the lamp unit is in all the way. w Fig. 2. Procedure to exchange Lamp unit. LCY99050- Fig. 3. Procedure to exchange Lamp unit 6 SHARF= LCY99050- (9) Packing form Packing form is shown in Fig.4 (Total Weight: 2,860 g) (10) Others 10-l) It shaII be informed before with attachment design, process, or management of the Quality/ reliability data if any changes of system occurs. 10-2) If any problems occurs in relation to the description in the present specitications relevant items, it shall be eliminated in all sincerity through discussion. Fig.4.Packing form or other 7