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Hitachi CP-X430W Service Manual

Multimedia
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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 LCD 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.
6. Use the cables which are included with the projector or specified.
1. Features --------------------------------------------------- 2
2. Specifications--------------------------------------------- 2
3. Names of each part ------------------------------------- 3
4. Adjustment ------------------------------------------------ 5
5. Troubleshooting ---------------------------------------- 11
6. Service points ------------------------------------------ 16
7. Block diagram ------------------------------------------ 23
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Multimedia LCD Projector
February 2002 Digital Media Systems Division
YK
Caution
Service Warning
Contents
8. Connector connection diagram -------------------- 24
9. Wiring diagram ----------------------------------------- 25
10.Basic circuit diagram---------------------------------- 30
11.Disassembly diagram--------------------------------- 63
12.Replacement parts list ------------------------------- 65
13.RS-232C communication ---------------------------- 66
No.0520E
CP-X430W
(C7X)

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  • 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 LCD Projector. Be sure to read cautionary items described in the manual to maintain safety before servicing.

  • Page 2: Features

    CP-X430W 1. Features High brightness, High resolution Vertical / Horizontal keystone function Compact size, light weight for portability P. in P. function RS-232C Communication My screen function (User start up screen) Auto-adjustment function 2. Specifications TFT active matrix Drive system...

  • Page 3: Names Of Each Part

    CP-X430W 3. Names of each part Parts names Speaker Zoom Knob Focus Ring Carrying Handle Remote Control Sensor Lens Foot Adjuster AC Inlet (to the Power Cord) Lens Cap Power Switch Foot Adjuster Ventilation Openings FRONT/LEFT VIEW OF (Intake) THE PROJECTOR...

  • Page 4: Remote Control Transmitter

    CP-X430W Remote control transmitter BLANK Button STANDBY/ON Button LASER Button VIDEO Button RGB Button Disk Pad MOUSE / RIGHT Button Used to operate the Used to click the right mouse shift function and mouse button. left click function. KEYSTONE Button...

  • Page 5: Adjustment

    CP-X430W 4. Adjustment 4-1 Before adjusting 4-4-1 Selection of adjustment Table 4-1: Relation between the replaced part and adjustment When any parts in the table 4-1 are changed, choose Adjustment the proffer adjusting items with the chart. White Color Replaced...
  • Page 6 CP-X430W 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.
  • Page 7 CP-X430W 4-5 White balance adjustment (visual inspection) Preparations 1. Perfor m these adjustments after the PSIG 2. Reset gamma correction before adjustment. adjustment described in Section 4-4. Place the cursor on [GAMMA] in the Adjustment menu, press the [RESET] key and select [DEFAULT].

  • Page 8: Color Uniformity Adjustment

    CP-X430W 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. Make a color uniformity adjustment for the ] key.
  • Page 9 CP-X430W Adjustment procedure 1 (when a color differential meter is used) 9. Similarly, measure adjustment points [No.3] to 1. First adjust [MID-L] tone [G:]. 2. Select adjustment point [No.2][G:]. [No.17] and adjust their color coordinates starting When the background is not [G] monochrome, in order from the small number points.
  • Page 10 CP-X430W Adjustment procedure 2 (visual inspection) 1. First adjust [MIN] tone [G:]. 6. View measurement points [No.2], [No.3], [No.10] 2. Select [No.2] [G:]. and [No.11]. Adjust the [R] and [B] of each If the background is [G] monochrome, press the measurement point so that they have the same color as measurement point [No.1].

  • Page 11: Troubleshooting

    CP-X430W 5. Troubleshooting Check points at trouble shooting ESPR E805 E302 E806 L818 ESPL Q801 E800 I256 E802 E803 S201 E811 E808 P502 P702 E809 S302 S303 P602 D302 D301 D303 I102 S305 S304 S307 S306 CH113 E801 CHV35 CH112...
  • Page 12 CP-X430W Power can not be turned on Are voltage Disconnect input on the PWB TSW from Power unit Open assembly Drive at (circuit). And check standby mode? TSW short or open? E800 : +16.5V E800 : +15V Short E800 : +4V...
  • Page 13 CP-X430W Lamp does not light What is the state of Light Light Change the lamp. Lamp LAMP indicator D302 Does lamp light? during operation? Not light Not light Is the voltage at collector of Q801 on the PWB assembly PWB assembly Drive Drive fixed to "L"...
  • Page 14 CP-X430W Picture is not displayed when the RGB signal is input Check at operating mode Change the Are signal IS01 on the PWB input at each pin on the assembly Signal is it PWB assembly repaired? Drive? IC (IS01) CH106 : R signal...
  • Page 15 CP-X430W No sound Check at operating mode Are signal input at each pin on the PWB assembly Drive? PWB assembly Signal CHV26 : Audio (L) CHV33 : Audio (R) PWB assembly Drive Speaker Can not control to RS-232C Check at operating mode...

  • Page 16: Service Points

    CP-X430W 6. Service points Cautions when removing the Upper case assembly When you remove the Upper case assembly, avoid to damage wires between speakers on the Upper case assembly and PWB assembly Drive on the Bottom case assembly. Wire from Speaker...

  • Page 17: Air Filter

    Therefore, regarding these parts, you can either replace part, LCD / Lens Prism assembly, or send the whole unit LCD / Lens Prism assembly back to HITACHI, where we will replace the malfunctioning part, recondition the device and send it back to you. In that case please contact our distributor.

  • Page 18: Loading The Batteries

    CP-X430W Loading the Batteries Install the AA batteries into the remote control transmitter. 1. Remove the battery cover. Push the knob while lifting up the battery cover. 2. Loading the batteries. Make sure the plus and minus poles are correctly oriented.

  • Page 19: Replacing The Lamp

    CP-X430W Replacing the Lamp 1. Switch the projector OFF, remove the power cord from the power outlet, and wait at least 45 minutes for the unit to cool. 2. Prepare a new lamp. 3. Check that the projector has cooled sufficiently, and gently turn it upside down.
  • Page 20 CP-X430W OSD Message The messages as described below may appear on the screen at power ON. Take the appropriate measures when such messages appears. Message Contents The usage time of lamp will be reaching 2000 hr CHANGE THE LAMP shortly.

  • Page 21: Indicators Message

    CP-X430W Indicators Message The POWER indicator, LAMP indicator, and TEMP indicator are lit and blank as follows. Take the appropriate measures. POWER LAMP TEMP Contents indicator indicator indicator Lights Turns off Turns off The Standby mode has been set. orange...
  • Page 22 CP-X430W Setup of a Cooling Fan Speed When using this projector in the place where altitude is high, we recommend you to set a cooling fan’s speed as “HIGH”. It is because the cooling efficiency of a projector falls and the temperature inside a projector rises easily in such a place, since the density of air becomes low.

  • Page 23: Block Diagram

    CP-X430W 7. Block diagram...

  • Page 24: Connector Connection Diagram

    CP-X430W 8. Connector connection diagram E950 S-VIDEO ESM2 EV01 E302 PWB assembly DRIVE assembly C.VIDEO MOUSE SENSOR 19 REMOTE E806 L.IN (FRONT) 2 REMOTE1 2 assembly S.CIN P502 3 REMOTE2 3 TEST REMC P602 (UPPER) S.YIN P702 VVDD CVBSIN N.C.

  • Page 25: Wiring Diagram

    CP-X430W 9. Wiring diagram...
  • Page 26 CP-X430W...
  • Page 27 CP-X430W...
  • Page 28 CP-X430W P502...
  • Page 29 CP-X430W...

  • Page 30: Basic Circuit Diagram

    CP-X430W 10. Basic circuit diagram Parts with hatching are not mounted. PWB assembly SENSOR (C7X) PWB assembly REMOTE CONTROL (C7X) PWB assembly LIMIT SWITCH (C7X)
  • Page 31 CP-x430W POWER UNIT (BALLAST) (C7X)
  • Page 32 CP-x430W Out put connector POWER UNIT (CIRCUIT) (C7X)
  • Page 33 CP-X430W (female) (female) (female) PWB assembly SIGNAL 1 (C7X)
  • Page 34 CP-X430W PWB assembly SIGNAL 2 (C7X)
  • Page 35 CP-X430W (male) serial mouse RS232C PWB assembly SIGNAL 3 (C7X)
  • Page 36 CP-X430W serial parallel PWB assembly DRIVE 1 (C7X)
  • Page 37 CP-X430W PWB assembly DRIVE 2 (C7X)
  • Page 38 CP-X430W PWB assembly DRIVE 3 (C7X)
  • Page 39 CP-X430W PWB assembly DRIVE 4 (C7X)
  • Page 40 CP-X430W PWB assembly DRIVE 5 (C7X)
  • Page 41 CP-X430W PWB assembly DRIVE 6 (C7X)
  • Page 42 CP-X430W PWB assembly DRIVE 7 (C7X)
  • Page 43 CP-X430W PWB assembly DRIVE 8 (C7X)
  • Page 44 CP-X430W PWB assembly DRIVE 9 (C7X)
  • Page 45 CP-X430W PWB assembly DRIVE 10 (C7X)
  • Page 46 CP-X430W PWB assembly DRIVE 11 (C7X)

  • Page 47: Disassembly Diagram

    CP-X430W 11. Disassembly diagram...
  • Page 48 CP-X430W...

  • Page 49: Replacement Parts List

    CP-X430W 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 projector through improper servicing.

  • Page 50: Rs-232C Communication

    CP-X430W 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 jack...
  • Page 51 CP-X430W 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 52: Command Data Chart

    CP-X430W 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...
  • Page 53 CP-X430W 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 54 CP-X430W 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...
  • Page 55 CP-X430W 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 56 CP-X430W Command data chart Command data Names Operation type Header Action Type Setting code BE EF 06 00 CB D0 01 00 08 30 01 00 Sync on G BE EF 06 00 5B D1 01 00 08 30 00 00...
  • Page 57 CP-X430W MEMO...
  • Page 58 CP-X430W YK No.0520E Digtal Media System Division QR51101 Printed in Japan (S)

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