Hitachi PJ1065 Service Manual
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Hitachi PJ1065 Service Manual

Hitachi PJ1065 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 Multimedia LCD Projector. Be sure to read
cautionary items described in the manual to maintain safety before servicing.
1. When replacing the lamp, avoid burns to your fingers, the lamp becomes very 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 turning on the projector.
4. Do not touch the exhaust fan, during operation.
5. The LCD module assembly is likely to be damaged. If replacing 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 ---------------------------------------- 13
6. Service points ------------------------------------------ 19
7. Block diagram ------------------------------------------ 22
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Multimedia LCD Projector
Caution
Service Warning
Contents
8. Wiring diagram ----------------------------------------- 23
9. Basic circuit diagram---------------------------------- 27
10.Connector connection diagram -------------------- 75
11.Disassembly diagram--------------------------------- 77
12.Replacement parts list ------------------------------- 79
13.RS-232C communication ---------------------------- 80
April 2001 Digital Media Group
SM0509
CPX980W
CPX985W
PJ1065

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  • Page 1: Table Of Contents

    SM0509 CPX980W SERVICE MANUAL CPX985W PJ1065 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.

  • Page 2: Features

    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 Liquid crystal Panel size 1.3 inches panel...

  • Page 3: Names Of Each Part

    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 input changes in the following sequence MUTE Button each time this button is pressed.
  • Page 4 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 VIDEO Button LASER Button STANDBY/ON Button RGB Button BLANK Button MOUSE / RIGHT Button Disk Pad Used to click the Used to operate the right mouse button. mouse shift function and left click function. POSITION Button AUTO Button RESET Button MENU Button Used to click the right mouse button.
  • Page 6 Message table On-screen display The following messages are displayed on the screen. "CHANGE THE LAMP" "AFTER REPLACING LAMP, RESET Lamp has 1,700 hours on it and may need to be changed. THE LAMP TIMER" "CHANGE THE LAMP" "AFTER REPLACING LAMP, Lamp has 2,000 hours on it.

  • Page 7: Adjustment

    4. Adjustment 4 - 1 Before adjusting 1. Before starting adjustment, warm up the projector 4. Perform all adjustments from the Adjustment menu. Perform the following operations to display the for about 10 minutes. (Blank white) 2.Set Zoom Wide to Max. and project an image a Adjustment menu.
  • Page 8 4 - 4 NRSH adjustment (vertical stripe adjustment) Signals for internal adjustment Adjustment procedure 1. Make this adjustment after completing the adjust- ment 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 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 values. coordinates (x, y) at the center of the screen take [0%][R:] = -128 on the following values.
  • Page 10 4 - 6 Color uniformity adjustment Preparations 6. To temporarily turn correction off, place the cursor 1. Perform these adjustments after the white balance on "ON" in the Adjust Tone menu and press the adjustment described in Section 4-5. 2. Make a color uniformity adjustment for the follow- ] key.
  • Page 11 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 is no need to adjust. (Go to step 10 if no adjustment in order from the small number points.
  • Page 12 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 mea- no need to adjust. (Go to step 9 if no adjustment is surement point so that they have the same color as required.) measurement point [No.1].

  • Page 13: Troubleshooting

    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. The power supply input of PWB ass'y DRIVE EDS2 Pin No.
  • Page 14 Power can not be turned on Is power LED lit in orange ? Does Projector turn on by Remote ? It there sound like "shu" when the Projector turns on ? Change the PWB ass'y KEYBOARD. Power unit (circuit) PWB ass'y FILTER FUSE Does power can be turned on ?
  • Page 15 Lamp does not light Disconnect Replace the PWB flexible connector from ass'y FAN and remove EMD1 connector. the PWB ass'y DRIVE. And light on? Does lamp light ? PWB ass'y DRIVE PWB ass'y FAN What is the state of Not light Light LAMP indicator during operation ?
  • Page 16 Picture is not displayed (is wrong) Picture is displayed when the VIDEO or DIGITAL. when the RGB Signal is inputted. Is RGB1 or a picture of which of RGB2 displayed ? Change the PWB ass'y DRIVE. Is it repaired ? Change the PWB ass'y RGB.
  • Page 17 Picture is displayed when the Digital or RGB is inputted. Change the PWB DRIVE. It is repaired ? Change the PWB RGB. It is repaired ? PWB ass'y DRIVE PWB ass'y VIDEO PWB ass'y RGB Picture is not displayed (is wrong) when the all signals are inputted.
  • Page 18 No sound Change the SPEAKER. Fixed ? Change the PWB ass'y FAN. Fixed ? SPEAKER Change the PWB ass'y DRIVE. PWB ass'y FAN Fixed ? Can not control mouse. Change the PWB Can not control RS-232C. ass'y RGB. PWB ass'y DRIVE Fixed ? PWB ass'y VIDEO PWB ass'y RGB...

  • Page 19: Service Points

    6. Service points 6 - 1 POINT Cautions when removing the Upper case In the Upper case, an operation PWB is installed. When removing, lift carefully without using excessive force to prevent damaging the ESW1 and ESW2 connector. ESW2 CNSW ESW1 Cautions when removing the drive PWB When removing the drive PWB, there is danger of damaging the connector connecting the fan PWB.
  • Page 20 Also LAMP indicator will light when the lamp becomes too hot. Turn off the power and let the Caution projector cool for 45 minutes. Turn on. How to replace lamp (Option lamp : Lamp unit DT00341) HIGH VOLTAGE HIGH TEMPERATURE HIGH PRESSURE When replacing lamp, turn off and remove AC cord, wait 45 minutes to let lamp cool.
  • Page 21 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. 5. Install the lamp cover and fix it using screws. To prevent burn, install the lamp cover and secure it using the screws.
  • Page 22 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 3rd PLL Decorder LCD Panel &...
  • Page 23 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 The SK binder screw (SK1)
  • Page 24 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 25 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 26 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 27: Basic Circuit Diagram

    9. Basic circuit diagram Parts with hatching are not mounted. PWB ass'y RELAY PWB ass'y SENSOR PWB ass'y TEMPERATURE PWB ass'y REMOTE CONTROL...
  • Page 28 CN1A INL1 PWB ass'y FILTER...

  • Page 29: Disassembly Diagram

    11. Disassembly diagram PC+ABS Remove a FRONT COVER ASS'Y before you remove a UPPER CASE ASS'Y PC+ABS PC+ABS...
  • Page 30 PC+GF PC+GF PC+ABS PC+ABS...
  • Page 31 THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA...

  • Page 32: 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 33 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. Changing the projector settings (Set command) (1) Send the setting code Header + Command data (‘01H’+‘00H’+ type (2 bytes) + setting code (2 bytes)) from the computer to the projector.
  • Page 34 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 Green BE EF 06 00 5B D2 01 00...
  • Page 35 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 Decrement BE EF 06 00 CB D3...
  • Page 36 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 01 00 BE EF 06 00 75 D3...
  • Page 37 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 Decrement BE EF 06 00 46 73...
  • Page 38 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 01 00 bottom left BE EF 06 00...
  • Page 39 MEMO...
  • Page 40 Fax: +46 (0) 8 562 711 13 Tel: +39 02 38073415 Servizio Clienti Email: csgswe@hitachi-eu.com Fax: +39 02 48786381/2 Email: customerservice.italy@hitachi-eu.com HITACHI EUROPE S.A.S HITACHI EUROPE LTD (Norway) AB Lyon Office STRANDVEIEN 18 B.P. 45, 69671 BRON CEDEX 1366 Lysaker FRANCE...

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Cpx980wCpx985w

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