Service manual

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Service Manual

ViewSonic PJ501/PJ551

Model No. VPROJ25048-1W/

VPROJ25049-1W

Color Super Bright XGA LCD

Ultra-Portable Projector

(PJ501/PJ551_SM_623 - Rev. 1a – October 2002)

ViewSonic



381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

Summary of content (62 pages)

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Service Manual ViewSonic PJ501/PJ551 Model No. VPROJ25048-1W/ VPROJ25049-1W Color Super Bright XGA LCD Ultra-Portable Projector (PJ501/PJ551_SM_623 - Rev.
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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.
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TABLE OF CONTENTS CAUTION AND SERVICE WARNING................................................................................................1 1. FEATURES..........................................................................................................................................2 2. SPECIFICATIONS .............................................................................................................................2 3. LOCATION OF FEATURES, CONTROLS, AND I/O ..............................
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PJ501 / PJ551 SERVICE MANUAL Caution Be sure to read this manual before servicing. To assure safety from fire, electric shock, injury, harmful radiation and materials, various measures are provided in this Multimedia LCD Projector. Be sure to read cautionary items described in the manual to maintain safety before servicing. Service Warning 1. When replace the lamp, to avoid burns to your fingers. The lamp becomes too hot. 2. Never touch the lamp bulb with a finger or anything else.
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1. Features 1,500 ANSI lumens, 2.7kg(6lbs) Easy and flexible keystone adjustment My screen Wide angle lens Low noise 2.
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3.
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SEARCH Button STANDBY/ON Button RGB Button AUTO Button VIDEO Button BLANK Button ASPECT Button MAGNIFY ON Button OFF Button VOLUME Button MUTE Button FREEZE Button KEYSTONE Button MENU Button POSITION Button [Up] Arrow Button [Left] Arrow Button [Right] Arrow Button ENTER Button RESET Button ESC (Escape) Button [Down] Arrow Button Remote control ViewSonic Corporation 4 Confidential - Do Not Copy PJ501/PJ551
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4. Adjustment 4-1 Before adjusting 4-1-1 Selection of adjustment When any parts in the table 4-1 are changed, choose the proffer adjusting items with the chart. Table 4-1: Relation between the replaced part and adjustment �� : means need for adjustment. : means recommended.
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4-3 Flicker adjustment (V.COM adjustment) Adjustment procedure 1. Make this adjustment after completing the adjustment in 4-2 Ghost adjustment. 2. Use DAC-P - V.COM - R: in the Adjustment menu to adjust so that the flicker at the center of the screen is less than the flicker at the periphery. (When the flicker is about the same across the whole screen, adjust so that the flicker at the center of the screen is somewhat less than elsewhere.) 3. In the same way, use DAC-P - V.
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PJ551 ONLY 4-4 NRSH adjustment (vertical stripe adjustment) Signals for internal adjustment Adjustment procedure 1. Make this adjustment after completing the adjustment in 4-3 Flicker adjustment. 2. Use DAC-P - NRSH - R: in the Adjustment menu to adjust so that the vertical lines spaced every 6 dots are as inconspicuous as possible. (Reduce the adjustment value when black stripes appear in the 2nd or 3rd tone from the black side.
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4-6 Color uniformity adjustment Preparations 1. Perform these adjustments after the white balance adjustment described in Section 4-5. 2. Make a color uniformity adjustment for the following four tones. MIN tone (approx. 4% input signal) MID-L tone (approx. 14% input signal) MID-H tone (approx. 25% input signal) 6. To temporarily turn correction off, place the cursor on “ON” in the Adjust Tone menu and press the [ ] key.
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Adjustment procedure 1 (when a color differential meter is used) 1. First adjust [MID-L] tone [G:]. 2. Select adjustment point [No.2][G:]. When the background is not [G] monochrome, press the [MENU SELECT] key on the Remote control transmitter to change to solid [G] monochrome. 3. Measure the illumination at adjustment points No. 2, No.3, No.10 and No.11. The values should be: No.2 = Y2 [lx] No.10 = Y10 [lx] No.3 = Y3 [lx] No.11 = Y11 [lx] 4. No.2 and No.3 adjustment point have the average of Y2 and Y3.
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Adjustment procedure 2 (visual inspection) 1. First adjust [MIN] tone [G:]. 2. Select [No.2] [G:]. If the background is [G] monochrome, press the [MENU SELECT] key on the Remote control transmitter to change to solid white. 3. View measurement point [No.2] and [No.3]. Lower the [G] color intensity only of the color point whose [G] color is more intense than measurement point [No.1]. 4. View measurement point [No.10] and [No.11].
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No. 2 deviation range �� No. 4 deviation range �� No. 6 deviation range �� No. 14 deviation range �� ViewSonic Corporation �� No.
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5.
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6. Assembly Removal, Replacement, and Maintenance Cautions when removing the PWB assembly Drive When removing the PWB assembly Drive, there is danger of damaging the connector connecting cables and the PWB assembly Signal. 1) Disconnect 6 cables and remove 3 screws. PWB assembly Drive Disconnect 7 cables Remove 3 screws 2) Lift up the rearward of the PWB assembly Drive to the front. Lift up FRONT PWB assembly Drive 3) Disconnect 5 cables lifting the PWB assembly Drive.
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Lead free solder [CAUTION] This product uses lead free solder (unleaded) to help preserve the environment. Please read these instructions before attempting any soldering work. Caution: Always wear safety glasses to prevent fumes or molten solder from getting into the eyes. Lead free solder can splatter at high temperatures (600˚C). Lead free solder indicator Printed circuit boards using lead free solder are engraved with an "F.
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Before Replacing the LCD / Lens Prism You should not replace separately the parts of the liquid crystal LCD / Lens Prism because it works properly only when used together. Therefore, regarding these parts, you can either replace part , LCD / Lens Prism assembly, or send the whole unit LCD / Lens Prism assembly back to SUPPLIER, where we will replace the malfunctioning part, recondition the device and send it back to you.
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Air Filter ��
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Lamp (Option Lamp: DT00402 RLC-150-001(PJ501) / DT00462 RLC-150-003(PJ551)) �� DT00402 RLC-150-001(PJ501) / DT00462 RLC-150-003(PJ551) ��
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Replacing the Lamp ��
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Resetting the Lamp Timer ��
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Notice of AUTO adjustment Use of AUTO adjustment with the image through RGB input optimizes VPOSI, HPOSI, HSIZE and HPHASE automatically. In case that projected image has dark tone around its peripheral, AUTO operation sometimes makes artifacts in the image, shifts capture area and so on. Those failures are caused by period of image data is not exactly distinguished to period of blanking on signal processing.
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OSD Messages �� The lamp will reach the end of its life in 300 hours. POWER is switched off �� automatically when the lamp reaches the end of its life. prepare a new lamp for installation. �� Always reset the lamp timer after replacing the lamp.
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Indicator Messages ��
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ViewSonic Corporation 27 ��
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8.
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ViewSonic Corporation �� 29 �� Confidential - Do Not Copy ��
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30 ��
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ViewSonic Corporation 31 Confidential - Do Not Copy PJ501/PJ551 ��
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ViewSonic Corporation 32 Confidential - Do Not Copy PJ501/PJ551 ��
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ViewSonic Corporation 33 Confidential - Do Not Copy PJ501/PJ551 ��
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34 �� Confidential - Do Not Copy ��
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ViewSonic Corporation 35 Confidential - Do Not Copy PJ501/PJ551 ��
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10. Circuit Diagrams 6 Parts with hatching are not mounted.
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6 6 5 5 4 4 3 3 2 2 1 1 PWB assembly DRIVE 1 (C3S3VS/C3XM3VS) A ViewSonic Corporation B C D 37 E F Confidential - Do Not Copy G PJ501/PJ551
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6 6 5 5 4 4 3 3 2 2 1 1 PWB assembly DRIVE 2 (C3S3VS/C3XM3VS) A ViewSonic Corporation B C D 38 E F Confidential - Do Not Copy G PJ501/PJ551
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6 6 5 5 4 4 3 3 2 2 1 1 PWB assembly DRIVE 3 (C3S3VS/C3XM3VS) A ViewSonic Corporation B C D 39 E F Confidential - Do Not Copy G PJ501/PJ551
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6 6 5 5 4 4 3 3 2 2 1 1 PWB assembly DRIVE 4 (C3S3VS/C3XM3VS) A ViewSonic Corporation B C D 40 E F Confidential - Do Not Copy G PJ501/PJ551
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6 6 5 5 4 4 3 3 2 2 1 1 PWB assembly DRIVE 5 (C3S3VS/C3XM3VS) A ViewSonic Corporation B C D 41 E F Confidential - Do Not Copy G PJ501/PJ551
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6 6 5 5 4 4 3 3 2 2 1 1 PWB assembly DRIVE 6 (C3S3VS/C3XM3VS) A ViewSonic Corporation B C D 42 E F Confidential - Do Not Copy G PJ501/PJ551
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6 6 5 5 4 4 3 3 2 2 1 1 PWB assembly DRIVE 7 (C3S3VS/C3XM3VS) A ViewSonic Corporation B C D 43 E F Confidential - Do Not Copy G PJ501/PJ551
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6 6 5 5 4 4 3 3 2 2 1 1 PWB assembly DRIVE 8 (C3S3VS/C3XM3VS) A ViewSonic Corporation B C D 44 E F Confidential - Do Not Copy G PJ501/PJ551
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6 6 5 5 4 4 3 3 2 2 1 1 PWB assembly DRIVE 9 (C3S3VS/C3XM3VS) A ViewSonic Corporation B C D 45 E F Confidential - Do Not Copy G PJ501/PJ551
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6 6 5 5 4 4 3 3 2 2 1 1 PWB assembly DRIVE 10 (C3S3VS/C3XM3VS) A ViewSonic Corporation B C D 46 E F Confidential - Do Not Copy G PJ501/PJ551
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6 6 5 5 4 4 3 3 2 2 1 1 PWB assembly INPUT 1 (C3S3VS/CSXM3VS) A ViewSonic Corporation B C D 47 E F Confidential - Do Not Copy G PJ501/PJ551
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(socket) 6 6 5 5 4 4 3 3 (plug) 2 2 1 1 PWB assembly INPUT 2 (C3S3VS/C3XM3VS) A ViewSonic Corporation B C D 48 E F Confidential - Do Not Copy G PJ501/PJ551
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6 6 5 5 4 4 3 3 2 2 1 1 POWER UNIT (BALLAST)(C3S3VS/C3XM3VS) A ViewSonic Corporation B C D 49 E F Confidential - Do Not Copy G PJ501/PJ551
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6 6 5 5 4 4 3 3 2 2 1 1 POWER UNIT (CIRCUIT)(C3S3VS/C3XM3VS) A ViewSonic Corporation B C D 50 E F Confidential - Do Not Copy G PJ501/PJ551
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11.
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M : Meter screw T : Tapping screw � �� ViewSonic Corporation 52 Confidential - Do Not Copy PJ501/PJ551
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12. Replacement Parts list PRODUCT SAFETY NOTE : Components marked with a have special characteristics important to safety. Before replacing any of there components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don't degrade the safety of the receiver through improper servicing. PJ501 Symbol No. VIEWSONIC P/N PARTS NO. DESCRIPTION PWB ASSÝ INPUT 22 B-SB-0221-0375 HA00911 POWER UNIT (CIRCUIT) E-SK-0412-0006 GK00562 SPEAKER Symbol No. VIEWSONIC P/N DESCRIPTION PARTS NO.
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13.
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Command data chart Names Operation type Blue Blank Color Set Set Freeze Startup Set Setting code CB D3 01 00 00 30 03 00 00 30 05 00 00 30 06 00 BE EF 03 06 00 6B D0 BE EF 03 06 00 9B D0 01 00 BE EF 03 06 00 08 D3 02 00 00 30 00 00 Normal BE EF 03 06 00 C7 D2 01 00 01 30 00 00 H Inverse BE EF 03 06 00 57 D3 01 00 01 30 01 00 V lnverse BE EF 03 06 00 A7 D3 01 00 01 30 02 00 H&V Inverse BE EF 03 06 00 37 D2 01 00 01 30 03 00 Normal Freeze Turn
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Command data chart ��
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Command data chart ��
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Command data chart ��