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 ...
Further, ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or changes.
4. ADJUSTMENT ...........................5 5. TROUBLESHOOTING........................12 6. ASSEMBLY REMOVAL, REPLACEMENT, AND MAINTENANCE ........17 7. BLOCK DIAGRAM..........................23 8. INTERCONNECTION DIAGRAM....................24 9. WIRING DIAGRAM ..........................25 10. CIRCUIT DIAGRAMS ........................36 11. DISASSEMBLY/EXPLODED PARTS DIAGRAMS..............51 12. REPLACEMENT PARTS LIST......................53 13. RS-232C COMMUNICATION PROTOCOL .................54 PJ501/PJ551 Service Manual...
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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 radia- tion and materials, various measures are provided in this Multimedia LCD Projector. Be sure to read caution- ary items described in the manual to maintain safety before servicing.
Rear Foot Adjuster REAR / RIGHT / VIEW RGB Terminal CONTROL Terminal Remote Control Sensor COMPONENT AUDIO Terminal Y Terminal AUDIO Terminal R Terminal Terminal TERMINAL PANEL L Terminal VIDEO Terminal S-VIDEO Terminal ViewSonic Corporation PJ501/PJ551 Confidential - Do Not Copy...
Adjustment menu to adjust so that G color ghost is at a minimum. 3. In the same way, use DAC-P - GHOST-B: in the Adjustment menu to adjust so that B color ghost is at a minimum. ViewSonic Corporation PJ501/PJ551 Confidential - Do Not Copy...
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3. In the same way, use DAC-P - V.COM-G: in the Adjustment menu to adjust the G color flicker. 4. In the same way, use DAC-P - V.COM-B: in the Adjustment menu to adjust the B color flicker. PJ501 ONLY 4-4 PSIG-G adjustment (vertical stripe adjustment) Signals for internal adjustment Adjustment procedure 1.
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Adjust menu so that middle-brightness white contrast ratio. balance is best. 5. Then adjust colors R and B. 9. Repeat steps 7 to 8 above, and adjust so that brightness white balance of 28 steps is best. PJ501/PJ551 ViewSonic Corporation Confidential - Do Not Copy...
����� ����� ������ ��� ��� ��� ��� ��� ��� Adjust Tone menu �� �� � � � ����� ������ ������ ������ �� ��� ���������������������������������� ��� � � � ��� �� �� �� PJ501/PJ551 ViewSonic Corporation Confidential - Do Not Copy...
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[No.2] and adjust [No.2][R:] and [B:] so that set half as many as [MID-L] tone [G].) the coordinates are as follows. x = x1 ± 0.005 , y = y1 ± 0.010 ViewSonic Corporation PJ501/PJ551 Confidential - Do Not Copy...
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5. Now adjust the [MIN] tone for colors [R] and [B]. [No.9], [No.14], [No.15], [No.16] and [No.17]. This completes the [MIN] tone adjustments. 9. Make similar another three tones as described in steps 1 to 8 above. PJ501/PJ551 ViewSonic Corporation Confidential - Do Not Copy...
Cautions when removing the POWER UNIT (BALLAST) When removing the cable (CNBAR) connected to POWER UNIT (BALLAST) there is danger of damaging the small PWB connecting cables. POWER UNIT (BALLAST) ���������������������������������������� ����� ��������������������������������������������� ������������������������� �� PJ501/PJ551 ViewSonic Corporation Confidential - Do Not Copy...
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Soldering iron temperature Mounting (chips) on mounted PCB 320˚C±30˚C Mounting (chips) on empty PCB 380˚C±30˚C Chassis, metallic shield, etc. 420˚C±30˚C The PWB assembly which has used lead free solder PWB assembly DRIVE PJ501/PJ551 ViewSonic Corporation Confidential - Do Not Copy...
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2) There is no failure above in AUTO with video source through VIDEO, S-VIDEO or COMPONENT input. The reason is why recognition of input signal’s standard does not need to search the capture range from input signal itself. PJ501/PJ551 ViewSonic Corporation...
The filter time reach 100 hours. Clean the air filter and reset the filter time. �������������������������� ������������������������ This message is cleared automatically after approximately three minutes, and appears every time POWER is switched PJ501/PJ551 ViewSonic Corporation Confidential - Do Not Copy...
10. Circuit Diagrams Parts with hatching are not mounted. PWB assembly SENSOR (C3S3VS/C3XM3VS) PWB assembly LIMIT SWITCH (C3S3VS/C3XM3VS) PWB assembly REMOTE CONTROL (C3S3VS/C3XM3VS) PJ501/PJ551 ViewSonic Corporation Confidential - Do Not Copy...
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PWB assembly DRIVE 1 (C3S3VS/C3XM3VS) ViewSonic Corporation PJ501/PJ551 Confidential - Do Not Copy...
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PWB assembly DRIVE 2 (C3S3VS/C3XM3VS) PJ501/PJ551 ViewSonic Corporation Confidential - Do Not Copy...
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PWB assembly DRIVE 3 (C3S3VS/C3XM3VS) ViewSonic Corporation PJ501/PJ551 Confidential - Do Not Copy...
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PWB assembly DRIVE 4 (C3S3VS/C3XM3VS) ViewSonic Corporation PJ501/PJ551 Confidential - Do Not Copy...
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PWB assembly DRIVE 5 (C3S3VS/C3XM3VS) ViewSonic Corporation PJ501/PJ551 Confidential - Do Not Copy...
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PWB assembly DRIVE 6 (C3S3VS/C3XM3VS) ViewSonic Corporation PJ501/PJ551 Confidential - Do Not Copy...
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PWB assembly DRIVE 7 (C3S3VS/C3XM3VS) ViewSonic Corporation PJ501/PJ551 Confidential - Do Not Copy...
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PWB assembly DRIVE 8 (C3S3VS/C3XM3VS) ViewSonic Corporation PJ501/PJ551 Confidential - Do Not Copy...
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PWB assembly DRIVE 9 (C3S3VS/C3XM3VS) ViewSonic Corporation PJ501/PJ551 Confidential - Do Not Copy...
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PWB assembly DRIVE 10 (C3S3VS/C3XM3VS) ViewSonic Corporation PJ501/PJ551 Confidential - Do Not Copy...
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PWB assembly INPUT 1 (C3S3VS/CSXM3VS) ViewSonic Corporation PJ501/PJ551 Confidential - Do Not Copy...
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(socket) (plug) PWB assembly INPUT 2 (C3S3VS/C3XM3VS) ViewSonic Corporation PJ501/PJ551 Confidential - Do Not Copy...
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POWER UNIT (BALLAST)(C3S3VS/C3XM3VS) ViewSonic Corporation PJ501/PJ551 Confidential - Do Not Copy...
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POWER UNIT (CIRCUIT)(C3S3VS/C3XM3VS) ViewSonic Corporation Confidential - Do Not Copy PJ501/PJ551...
PRODUCT SAFETY NOTE : Components marked with a have special characteristics important to safety. Before replacing any of there com- ponents, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don't degrade the safety of the receiver through improper ser- vicing. PJ501 DESCRIPTION Symbol Symbol...
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