PJ650 (C3XM4) SERVICE MANUAL Warning The technical information and parts shown in this manual are not to be used for: the development, design, production, storage or use of nuclear, chemical, biological or missile weapons or other weapons of mass destruction; or military purposes; or purposes that endanger global safety and peace.
PJ650 1. Features High brightness high resolution Full connectivity Easy and flexible keystone adjustment My screen Wide angle lens Low noise 2. Specifications Liquid Drive system TFT active matrix Crystal Panel size 1.8cm (0.7type) Panel Number of pixels 1024 (H) × 768 (V)
PJ650 3. Names of each part Parts names RESET button MENU button KEYSTONE button POWER LED TEMP LED INPUT button LAMP LED STANDBY/ON button Zoom knob Focus ring Air filter Elevator button Remote sensor S-VIDEO IN port AUDIO IN R and L ports...
PJ650 4. Adjustment 4-1 Before adjusting 4-1-1 Selection of adjustment Table 4-1: Relation between the replaced part and adjustment When any parts in the table 4-1 are changed, ���������� choose the proper adjusting items with the chart. ������ ����� ���������...
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PJ650 4-3 Flicker adjustment (V.COM adjustment) Signals for internal 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.
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PJ650 4-5 White balance adjustment (visual inspection) Preparations 1. Perform these adjustments after the PSIG or 2. Reset gamma correction before adjustment. NRSH adjustment described in Section 4-4. Place the cursor on [GAMMA] in the Adjustment menu, press the [RESET] key and select [DEFAULT].
PJ650 4-6 Color uniformity adjustment Preparations 1. Perform these adjustments after the white 6. To temporarily turn correction off, place the balance adjustment described in Section 4-5. cursor on “ON” in the Adjust Tone menu and 2. Make a color uniformity adjustment for the press the [ ] key.
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PJ650 Adjustment procedure 1 (when a color differential meter is used) 1. First adjust [MID-L] tone [G:]. 9. Similarly, measure adjustment points [No.3] to [No.17] and adjust their color coordinates 2. Select adjustment point [No.2][G:]. When the background is not [G] monochrome, starting in order from the small number points.
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PJ650 Adjustment procedure 2 (visual inspection) 1. First adjust [MIN] tone [G:]. 6. View measurement points [No.2], [No.3], 2. Select [No.2] [G:]. [No.10] and [No.11]. Adjust the [R] and [B] of If the background is [G] monochrome, press the each measurement point so that they have the [ENTER] key on the Remote control transmitter same color as measurement point [No.1].
PJ650 6. Service points 6-1 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).
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PJ650 6-2 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 7 cables and remove 3 screws. PWB assembly Drive...
PJ650 6-4 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.
PJ650 6-6 Caring for the air filter The air filter should be cleaned about every 100 hours. If the LAMP indicator and TEMP indicator blink red simultaneously, or a message prompts you to clean the air filter when you turn on the unit, the filter needs to be cleaned.
PJ650 6-8 Replacing the Lamp All projector lamps will wear out eventually. If used for long periods of time, the image could become darkened, and the color contrast could be impacted as well. We recommend that you replace your lamps early.
PJ650 6-9 Resetting the Lamp Timer Reset the lamp timer after replacing the lamp. 1. Switch power ON, and select the LAMP TIME on the OPTION menu. 2. Depress the RESET button for at least 3 seconds while lamp time is being displayed.
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PJ650 6-10 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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PJ650 6-11 On-screen Messages When the unit's power is ON, messages such as those shown below may be displayed. When any such message is displayed on the screen, please respond as described below. Message Description The unit does not display a warning message on the screen when the lamp expires TO MAXIMIZE PERFORMANCE, or fails.
PJ650 6-12 Regarding The Indicator Lamps Lighting and flashing of the POWER indicator, the LAMP indicator, and the TEMP indicator have the meanings as described in the Table below. Please respond in accordance with the instructions within the Table. POWER...
PJ650 SERVICE MENU To display the OSD for “SERVICE MENU” set up. By the control panel By the remote control transmitter ������� 1. Display the menu by the 1. Display the menu by the ��������������������� �������� “MENU” button. “MENU” button.
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PJ650 Setup of Filter time (“ON” or “OFF”) 1. Select the “FILTER TIME” on the OSD using button “ ” by the SERVICE MENU. ������� ��������������������� ���������������������� �������� ������������������������ ������� ������������ �������� ���� ���������� ����������� ������������� ��� �� ����������� ��...
PJ650 9. 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.
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PJ650 Requesting projector status (Get command) (1) Send the request code Header + Command data ('02H'+'00H'+ type (2 bytes) +'00H'+'00H') from the computer to the projector. (2) The projector returns the response code '1DH'+ data (2 bytes) to the computer.
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PWB as sembly SIGNAL 1 ViewSonic Corporation PJ650...
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PWB assembly SIGNAL 2 ViewSonic Corporation PJ650...
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PWB assembly SIGNAL 3 ViewSonic Corporation PJ650...
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*Readers Response* Thank you in advance for your feedback on our Service Manual,which allows continuous improvement of our products. We would appreciate your completion of the Assessment Matrix below, for return to ViewSonic Corporation Assessment PJ650 t i n e l l 1.PRECAUTIONS AND NOTICES...