Hitachi CP-X980W Service Manual
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Hitachi CP-X980W Service Manual

Hitachi CP-X980W Service Manual

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SERVICE MANUAL

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 Hitachi Multimedia LDC Projector. Be sure to
read cautionary items described in the manual to maintain safety before servicing.
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. Never drop it or give it a shock. They may cause
bursting of the bulb.
3. This projector is provided with a high voltage circuit for the lamp. Do not touch the electric parts of power
unit (main), when turn on the projector.
4. Do not touch the exhaust fan, during operation.
5. The LCD module assembly is likely to be damaged. If replacing to the LCD module assembly, do not hold
the FPC of the LCD module assembly.
1. Features -------------------------------------------------- 2
2. Specifications -------------------------------------------- 2
3. Names of each part ------------------------------------ 3
4. Adjustment ----------------------------------------------- 7
5. Troubleshooting ---------------------------------------- 14
6. Service points ------------------------------------------ 20
7. Block diagram ------------------------------------------ 23
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Multimedia LCD Projector
April 2001 Digital Media Systems Division
P4X/P4XM
Caution
Service Warning
Contents
8. Wiring diagram ----------------------------------------- 24
9. Basic circuit diagram ---------------------------------- 28
10.Connector connection diagram --------------------- 77
11.Disassembly diagram --------------------------------- 79
12.Replacement parts list -------------------------------- 81
13.RS-232C communication ---------------------------- 82
chassis
CP-X980W
CP-X985W

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Summary of Contents for Hitachi CP-X980W

  • Page 1: Table Of Contents

    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 Hitachi Multimedia LDC Projector. Be sure to read cautionary items described in the manual to maintain safety before servicing.

  • Page 2: Features

    CP-X980W CP-X985W 1. Features High brightness, High resolution Compact size, light weight for portability RGB output terminal RS-232C Communication Mouse emulation Power zoom and power focus functions Complies with VESA DDC1/2B specifications Auto-adjustment function 2. Specifications TFT active matrix Drive system...

  • Page 3: Names Of Each Part

    CP-X980W CP-X985W 3. Names of each part Parts names FOCUS Button Used to adjust the focus of the image on the screen. ZOOM Button INPUT Button Used to adjust the size of the image. Press this button to switch the input. The...
  • Page 4 CP-X980W CP-X985W Remote Control Sensor Terminal Panel Speaker (Refer below) Power Switch Rear/Left View Used to turn the power on and off. : OFF : ON AC Inlet Used to connect the accessory power cord. Caution Connecting to the AC Inlet Make sure the accessory power cord is plugged into the AC Inlet as far as it will go.
  • Page 5 CP-X980W CP-X985W VIDEO Button LASER Button STANDBY/ON Button RGB Button BLANK Button MOUSE / RIGHT Button Disk Pad Used to operate the Used to click the mouse shift function right mouse button. and left click function. POSITION Button AUTO Button...

  • Page 6: Message Table

    CP-X980W CP-X985W Message table On-screen display The following messages are displayed on the screen. "CHANGE THE LAMP" "AFTER REPLACING LAMP, RESET Lamp has 1,300 hours on it and may need to be changed. THE LAMP TIMER" "CHANGE THE LAMP" "AFTER REPLACING LAMP, Lamp has 1,979 hours on it.

  • Page 7: Adjustment

    CP-X980W CP-X985W 4. Adjustment 4 - 1 Before adjusting 1. Before starting adjustment, warm up the projector 4. Perform all adjustments from the Adjustment menu. for about 10 minutes. (Blank white) Perform the following operations to display the 2.Set Zoom Wide to Max. and project an image a Adjustment menu.
  • Page 8 CP-X980W CP-X985W 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 12 dots are as inconspicuous as possible.
  • Page 9 CP-X980W CP-X985W 11.Before adjusting Gamma, 0%, and [G:], adjust 17.Adjust Gamma, 75%, R: and B: so that the color Gamma, 0%, R: and B: so that the following coordinates (x, y) at the center of the screen take values. on the following values.
  • Page 10 CP-X980W CP-X985W 4 - 6 Color uniformity adjustment Preparations 1. Perform these adjustments after the white balance 6. To temporarily turn correction off, place the cursor adjustment described in Section 4-5. on "ON" in the Adjust Tone menu and press the [ 2.
  • Page 11 CP-X980W CP-X985W Adjustment procedure 1 (when a color differential meter is used) 1. First adjust [MIN] tone [G:]. 7. Similarly, measure adjustment points [No.10] to Unless there is conspicuous black uniformity, there [No.17] and adjust their color coordinates starting in is no need to adjust.
  • Page 12 CP-X980W CP-X985W Adjustment procedure 2 (visual inspection) 1. First adjust [MIN] tone [G:]. 6. View measurement points [No.2], [No.3], [No.10] Unless there is conspicuous black shading, there is and [No.11]. Adjust the [R] and [B] of each no need to adjust. (Go to step 9 if no adjustment is measurement point so that they have the same required.)
  • Page 13 CP-X980W CP-X985W No. 2 deviation range No. 10 deviation range No. 3 deviation range No. 11 deviation range No. 4 deviation range No. 12 deviation range No. 5 deviation range No. 13 deviation range 3 11 3 11 No. 6 deviation range No.

  • Page 14: Troubleshooting

    CP-X980W CP-X985W 5. Troubleshooting Check points at trouble shooting PROJECTION LENS EFZ1 EDI2 EPBX EPRX EDI1 EPGX EDI3 EMD1 EDS2 ERM1 ESW1 PWB ass'y DRIVE <Top view without upper case> Connectors on the back side of PWB ass’y DRIVE are drawn by dotted line.
  • Page 15 CP-X980W CP-X985W Power can not be turned on Lights orange of standby LED ? Does "ON" with Remote control transmitter ? Does sound with "shu" when POWER SW it on ? Change the PWB ass'y KEYBOARD. Power unit (circuit) PWB ass'y FILTER...
  • Page 16 CP-X980W CP-X985W Lamp does not light Disconnect Change the PWB flexible connector from ass'y FAN. Put on MAIN SW and does lamp light ? EMD1 connector. By the state of not PWB And light on? ass'y DRIVE. PWB ass'y DRIVE...
  • Page 17 CP-X980W CP-X985W Picture is not displayed (is wrong) Picture is displayed when the VIDEO or DIGITAL. when the RGB Signal Is RGB1 or a picture of which of RGB2 displayed ? Change the PWB ass'y DRIVE. Does a picture is displayed ? Change the PWB ass'y RGB.
  • Page 18 CP-X980W CP-X985W Picture is not displayed (is wrong) when the VIDEO Signal Change the PWB DRIVE. Does picture is displayed ? Change the PWB RGB. Does picture is displayed ? PWB ass'y DRIVE PWB ass'y VIDEO PWB ass'y RGB Picture is not displayed (is wrong)
  • Page 19 CP-X980W CP-X985W No sound Change the SPEAKER. Does sound on ? Change the PWB ass'y FAN. Does sound on ? SPEAKER Change the PWB ass'y DRIVE. PWB ass'y FAN Does sound on ? Can not control to mouse Change the PWB RS-232C not control ass'y RGB.

  • Page 20: Service Points

    Therefore, regarding these parts, you can either replace part , LCD / Lens Prism ass'y, or send the whole unit LCD / Lens Prism ass'y back to Hitachi, where we will replace the malfunctioning part, recondition the device and send it back to you.
  • Page 21 CP-X980W CP-X985W 6 - 2 About Lamp Replacement Light source lamp has a service life. The picture will become dark or color will be poor when the lamp is used for a long time. If usage of lamp is continued in such cases, it could cause a malfunction. Replace lamp with new one.
  • Page 22 CP-X980W CP-X985W 4. Replace the lamp with new one and fix it using the same two screws. Firmly tighten the lamp screws. Loose screws may cause bad connection of the connector which in turn may result in malfunctioning. Screw 5. Install the lamp cover and fix it using screws.
  • Page 23 EEPROM SRAM Frash ROM RGB AD Clamp RGB1 Signal Selector 1st PLL Color Uniformity Gamma 1.3type RGB2 Control LCD Panel 3line Image Video CPU Comb 1.3type Processor Timing Generator LCD Panel 2nd PLL Video 1.3type Selector Level PWB RGB Decorder 3rd PLL LCD Panel &...
  • Page 24 Those parts shall be pulled out and left on the outside until the optical unit is mounted. CNDS1 CNDS2 CNSG PWB FILTER The wire shall be laid so that it passes the ESD2 rib on its left-hand side. PWB VIDEO Speaker (R) ESD1 CN1A...
  • Page 25 Junction board for connector CNFZ #8061 CNDS1 CNDS2 CNSG Sirocco fan (for the panel) The wire shall be laid so that the connector for focus/zoom motor would not get tangled in the gear. Focus/zoom motor EZF1 PWB R/C CNRM Sirocco fan (for the panel) LSW2 SP.L #8051...
  • Page 26 Particular care shall be taken to prevent the CNDS1/CNDS2 from getting entangled in mounting bracket DVI when mounting the PWB FAN. (Particular Junction board to connector attention shall be paid when tightening CNDS2 CNSG the screw). Tightening the screw Sirocco fan (for the panel) The wire shall be laid so that the CNDS1 connector for focus/zoom motor...
  • Page 27 The ECN1/ECN2 wires shall be laid so that the excess wires shall be laid out as shown Screw PWB DRIVE in the figure below. Washer Particular care shall be taken to prevent ECN1 CNSG the CNSG/CNDS2 from getting entangled ECN2 PWB DRIVE in the upper cover when mounting the cover.

  • Page 28: Basic Circuit Diagram

    CP-X980W CP-X985W Parts with hatching are not mounted. 9. Basic circuit diagram PWB ass'y RELAY PWB ass'y SENSOR PWB ass'y TEMPERATURE PWB ass'y REMOTE CONTROL...
  • Page 29 PWB ass'y FILTER...
  • Page 30 CP-X980W CP-X985W MEMO...

  • Page 31: Disassembly Diagram

    CP-X980W CP-X985W 11. Disassembly diagram PC+ABS Remove a FRONT COVER ASS'Y before you remove a UPPER CASE ASS'Y PC+ABS PC+ABS...
  • Page 32 CP-X980W CP-X985W PC+GF PC+GF PC+ABS PC+ABS...

  • Page 33: Replacement Parts List

    LENS P3 ASS'Y(REPAIR) MU00841 FOOT P3 HA00821 POWER UNIT(CIRCUIT) QD21662 UPPER CASE ASS'Y (CP-X985W) JP04363 PWB ASS'Y VIDEO QD21661 UPPER CASE ASS'Y (CP-X980W) NJ05351 P4 POWER PWB HOLDER JP04366 PWB ASS'Y TEMPERATURE 2722448 FUSE 6.3V JP04372B PWB ASS'Y DRIVE HA00841...

  • Page 34: Rs-232C Communication

    13. RS-232C communication (1) Turn off the projector and computer power supplies and connect with the RS-232C cable. (2) Turn on the computer power supply and, after the computer has started up, turn on the projector power supply. RS-232C terminal Projector Computer D-sub 9-pin...
  • Page 35 CP-X980W CP-X985W 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.

  • Page 36: Command Data Chart

    CP-X980W CP-X985W Command data chart Command data Names Operation type Header Action Type Setting code BE EF 06 00 3B D3 01 00 00 30 00 00 Orange BE EF 06 00 AB D2 01 00 00 30 01 00...
  • Page 37 CP-X980W CP-X985W Command data chart Command data Names Operation type Header Action Type Setting code BE EF 06 00 7C D2 02 00 07 30 00 00 Magnify Increment BE EF 06 00 1A D2 04 00 07 30 00 00...
  • Page 38 CP-X980W CP-X985W Command data chart Command data Names Operation type Header Action Type Setting code Normal BE EF 06 00 46 D3 01 00 02 20 00 00 Mute Mute BE EF 06 00 D6 D2 01 00 02 20...
  • Page 39 CP-X980W CP-X985W Command data chart Command data Names Operation type Header Action Type Setting code BE EF 06 00 F1 72 02 00 01 22 00 00 Sharpness Increment BE EF 06 00 97 72 04 00 01 22 00 00...
  • Page 40 CP-X980W CP-X985W Command data chart Command data Names Operation type Header Action Type Setting code Upper left BE EF 06 00 02 23 01 00 01 23 00 00 Upper right BE EF 06 00 92 22 01 00 01 23...
  • Page 41 CP-X980W CP-X985W MEMO...
  • Page 42 CP-X980W Digital Media Systems Division CP-X985W...

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Cp-x985w

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