XG-MB70X A SERVICE MANUAL SX5Q3XGMB70XA MULTIMEDIA-PROJECTOR MODEL XG-MB70X A In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used. OUTLINE This Service Manual covers only different points from Model XG-MB70X. For other technical points, refer to the XG-MB70X Service Manual. CONTENTS Page » » » » » » » » » » » SPECIFICATIONS ...................................
XG-MB70X A SPECIFICATIONS Product type Model Video system Multimedia Projector XG-MB70X NTSC3.58/NTSC4.43/PAL/PAL-M/PAL-N/PAL-60/SECAM/ DTV480I/DTV480P/DTV540P/DTV576I/DTV576P/DTV720P/DTV1035I/DTV1080I Display method Single Chip Digital Micromirror DeviceTM (DMDTM) by Texas Instruments DMD panel Panel size: 0.7" No. of dots: 786,432 dots (1,024 [H] ✕ 768 [V]) Lens 1.5 ✕ electric zoom / focus lens, F2.0–2.5, f = 21.3–31.
XG-MB70X A A COMPARISON TABLE WITH THE UNIT OF XG-MB70X A XG-MB70X Ref. No. Parts No. DUNTKC612WEF0 XG-MB70X A Change ★ → J DUNTKC613WEF0 Parts No.
XG-MB70X A IMPORTANT SERVICE SAFETY NOTES (for USA) Ë Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and servicing guidelines as follows: » Use an AC voltmeter with sensitivity of 5000 ohm per volt., or higher, sensitivity to measure the AC voltage drop across the resistor (See Diagram). » All checks must be repeated with the AC plug connection reversed.
XG-MB70X A NOTE TO SERVICE NOTE POUR LE PERSONNEL PERSONNEL D’ENTRETIEN 123456789012345678901234567890121234567890123456 123456789012345678901234567890121234567890123456 123456789012345678901234567890121234567890123456 123456789012345678901234567890121234567890123456 UV-RADIATION PRECAUTION 123456789012345678901234567890121234567890123456 123456789012345678901234567890121234567890123456 PRECAUTION POUR LES RADIATIONS UV 123456789012345678901234567890121234567890123456 12345678901234567890123456789012123
XG-MB70X A 123456789012345678901234567890121234567890123456 123456789012345678901234567890121234567890123456 123456789012345678901234567890121234567890123456 123456789012345678901234567890121234567890123456 123456789012345678901234567890121234567890123456 123456789012345678901234567890121234567890123456 UV-RADIATION PRECAUTION (Continued) 123456789012345678901234567890121234567890123456 123456789012345678901234567890121234567890123456 123456789012345678901234567890121234567890123456 PRECAUTION POUR LES R
XG-MB70X A WARNING: High brightness light source, do not stare into the beam of light, or view directly. Be especially careful that children do not stare directly in to the beam of light. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS UNIT TO MOISTURE OR WET LOCATIONS. CAUTION The lighting flash with arrowhead within a triangle is intended to tell the user that parts inside the product are risk of electric shock to persons. RISK OF ELECTRIC SHOCK.
XG-MB70X A Precautions for using lead-free solder 1 Employing lead-free solder "PWBs" of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder. Example: LFa Indicates lead-free solder of tin, silver and copper. 2 Using lead-free wire solder When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder.
XG-MB70X A BALLAST UNIT OUTPUT POWER (LAMP OUTPUT) ADJUSTMENT 1. List of adjustment-related parts When the following parts have been replaced, adjust the ballast unit output power (lamp output). 1 2 3 3' 4 5 Parts Name Cement resistor Control PWB Ballast microprocessor (FLASH) Ballast microprocessor (MASK) 5V regulator PWM controller Ref. No. R922 --IC7707 IC7707 IC7704 IC7701 Parts Code RR-WZA015WJZZ DUNTKD497FMF2 RH-iXB384WJZZQ RH-iXB390WJZZQ VHiTA78L05F-1Y VHiM51995AF-1Y 2.
XG-MB70X A TROUBLESHOOTING TABLE Checking the power unit There is no voltage output at P704. NO Check the MAIN PWB unit. YES Which output voltage line fails? Other Check the T705, IC704 and their peripheral circuits. NO Check the P701 or AC cord. 13V, 6 Is AC voltage(90 ~ 264V) applied across the P701 connector? YES Is AC voltage(90 ~ 264V) applied across the P702 or P703 connector? Is the Bimetal SW open? YES Push the red button of the bimetal.
XG-MB70X A Lamp fails to light-up Turn on the power switch. Is discharging sound heard from lamp? YES Is the lamp out of socket? YES Reconnect the lamp into socket. NO Check the microproccessor and its peripheral circuits. NO NO Replace the lamp. Is the cooling fan running? NO Check the power supply circuits. NO Check the power supply circuits.
XG-MB70X A -MEMO- 12
XG-MB70X A DESCRIPTION OF SCHEMATIC DIAGRAM VOLTAGE MEASUREMENT CONDITION: 1. Voltages at test points are measured at the supply voltage of AC 220V. Signals are fed by a color bar signal generator for servicing purpose and the above voltages are measured with a 20k ohm/V tester. WAVEFORM MEASUREMENT CONDITION: 1. Waveforms at test points are observed at the supply voltage of AC 220V. Signals are fed by a color bar signal generator for servicing purpose. INDICATION OF RESISTOR & CAPACITOR: RESISTOR 1.
XG-MB70X A XG-MB70X A SCHEMATIC DIAGRAM H Ë POWER SUPPLY Unit DUNTKD556WEF1 G F E D C B A 1 2 3 4 5 14 6 7 8 9 10 11 12 13 14 15 16 15 17 18 19
XG-MB70X A XG-MB70X A Ë BALLAST Unit H DUNTKD496WEF2 G F E D C B A 1 2 3 4 5 16 6 7 8 9 10 11 12 13 14 15 16 17 17 18 19
XG-MB70X A XG-MB70X A Ë BALLAST CONTROL Unit H G F E D C B DUNTKD497FMF2 A 1 2 3 4 5 18 6 7 8 9 10 11 12 13 14 15 16 19 17 18 19
XG-MB70X A PRINTED WIRING BOARD ASSEMBLIES H G F E D C B A POWER SUPPLY Unit (Side-A) 1 2 3 4 20 5 6
D POWER SUPPLY Unit (Side-B) 1 2 3 4 21 R705 R730 D710 5 C701 C723 FB706 D706 R721 R764 R725 D707 R738 Q706 Q705 D708 R749 C739 R740 R742 R748 C729 R743 R737 C722 G R704 IC702 R735 R752 R750 R756 R753 C736 R751 R754 R760 R759 R758 R757 H R703 R731 E C717 R736 C724 D705 IC902 R767 R768 C705 R711 C703 R766 R762 R708 R710 R732 C706 C713 C702 R702 R712 C708 D704 D722 R728 R718 R715 R706 R707 C718 C716 XG-MB70X A R755 IC704 FB704 C719 D713 R733 F D702 R763
XG-MB70X A H G BALLAST Unit (Side-A) F E D BALLAST Unit (Side-B) C R906 R907 R909 R910 C908 C905 C924 C907 R948 R918 R920 R919 R921 R949 C925 C909 R939 R915 R904 R945 R903 R902 R944 R938 R943 A R940 R950 D912 C906 R914 Q905 Q906 D911 C922 R913 FB902 Q903 R901 R912 C904 R916 C902 C903 D902 C911 D904 R941 R942 R917 R908 FB901 R932 R935 C915 D901 R927 R933 C913 R934 R925 R926 R946 R928 R929 R930 R931 C910 B R911 R924 R937 BALLAST Unit (Chip
XG-MB70X A H G BALLAST CONTROL Unit (Side-A) C7746 R7787 C7739 R7761 D7703 R7720 R7723 C7731 R7755 C7713 R7721 C7719 R7731 C7744 IC7709 R7762 D7712 Q7707 R7726 R7712 C7707 R7725 R7724 C7710 C7715 C7734 C7709 R7717 D7713 R7719 C7712 R7775 R7776 D7711 C7742 C7728 R7793 R7770 R7769 R7783 C7749 C7727 C7718 C7741 C7737 IC7707 R7784 C7750 R7728 C7752 X7701 C7745 D7714 R7772 F IC7701 C7733 C7736 C7751 P7702 R7704 C7701 R7708 P7701 D7715 C7717 E BALLAST CONTROL Unit (Chip
XG-MB70X A Ref. No. Part No. ★ Description PARTS LIST Ref. No. Code INTEGRATED CIRCUITS HOW TO ORDER REPLACEMENT PARTS To have your order filled promptly and correctly, please furnish the following informations. in USA: 3. PART NO. 4. DESCRIPTION 5. CODE 6.
XG-MB70X A Ref. No. ★ Part No. Description Code Ref. No. DUNTKD556WEF1 R765 R766 R767 R768 POWER SUPPLY UNIT (Continued) C727 C728 C730 C731 C732 C733 C734 å C735 C736 C737 C738 C739 C740 C741 VCEA4A1VN107M+ J 100 35V Electrolytic RC-FZ0010TAZZ J 0.
XG-MB70X A Ref. No. ★ Part No. Description Code Ref. No.
XG-MB70X A Ref. No. ★ Part No. Description Code Ref. No.
XG-MB70X A Ref. No. Part No. ★ Description Code Ref. No.
XG-MB70X A Ref. No. Part No. ★ Description Code Ref. No.
XG-MB70X A CABINET AND MECHANICAL PARTS 1 H Z 1-1 32 35 G 28 1-3 28 1-4 48 1-2 1-5 23-1 E D G F H 27 23-3 23-2 C 30 31 48 F 23 60 48 23-1 48 a Q B A I 55 V R 50 56 A P N M Y L O b 26 D 38 33 K E 37 62 V 29 J X E P 62 36 34 39 40 4 51 B 52 42 47 D 62 62 49 J 45 a 57 54 53 41 46 C 58 I 2-1-4 2-8 2-1-1 44 59 2-17 2-10 2-1-2 62 C 2-17 2-13 2-3 62 29 2-10 59 48 2-7 63 Z X 2-12 b 2-1-3 62 K 2-1-5 2-16 2-17 2-11 2-1-6 2-14
XG-MB70X A Ref. No. Part No. ★ Description Code Ref. No.
XG-MB70X A Part No. ★ Description Code Ref. No. OPTICS MECHANISM PARTS Ref. No. ★ Part No.
XG-MB70X A Ref. No. Part No. ★ Description Code Ref. No. å X1 å X1 å X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13 X14 X15 X15 X15 X15 X16 X16 X16 X17 X17 X17 QACCDA007WJPZ J AC Cord for U.S., Canada, etc. AR (XG-MB70U A) QACCVA011WJPZ J AC Cord for Europe, except U.K. AT (XG-MB70E A) QACCBA036WJPZ J AC Cord for U.K.
XG-MB70X A Ref. No. Part No. ★ ★ Description Code No. Part No. PACKING OFRef.
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XG-MB70X A COPYRIGHT © 2005 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. TQ1970-S Dec. 2005 Printed in Japan Design and Production Information Design : JAPAN Production : NSEC MY.
