Hitachi CP-X325W Service Manual
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Hitachi CP-X325W Service Manual

Hitachi CP-X325W 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 liquid crystal 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 ass'y is likely to be damaged. If replacing to the LCD module ass'y, do not hold the FPC of
the LCD module ass'y.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Liquid Crystal Projector
October 2000 Digital Media Systems Division
YK
Caution
Service Warning
Contents
2
2
9. Wiring diagram
3
5
11
17
22
No. 0507E
CP-X325W
23
24
27
55
57
58

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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 liquid crystal projector. Be sure to read cautionary items described in the manual to maintain safety before servicing.

  • Page 2: Features

    CP-X325W 1. Features High brightness, High resolution Compact size, light weight for portability RS-232C Communication Complies with VESA DDC1/2B specifications Auto-adjustment function 2. Specifications Drive system TFT active matrix Liquid crystal Panel size 0.9 inches panel Number of pixels 1024 (H) x 768 (V)

  • Page 3: Names Of Each Part

    CP-X325W 3. Names of each part Main unit Speaker Zoom Knob Focus Ring Handle Hook Remote Control Sensor Power Switch Lens AC Inlet Slide Lens door (to the Power Cord) Foot Adjuster Ventilation Openings (Intake) FRONT/LEFT VIEW OF THE PROJECTOR...

  • Page 4: Remote Control Transmitter

    CP-X325W Remote control transmitter VIDEO button STANDBY/ON button LASER button RGB button BLANK button MOUSE / RIGHT button DISK PAD Used to click the right Used to operate the mouse button. mouse shift function and left click function. POSITION button...

  • Page 5: Adjustment

    CP-X325W 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 min. (Blank white) Perform the following operations to display the 2. Set Zoom Wide to Max. and project an image a Adjustment menu.
  • Page 6 CP-X325W 4 - 4 PSIG 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 - PSIG - G: in the Adjust menu to adjust so that the vertical lines spaced every 6 dots are as inconspicuous as possible.

  • Page 7: Color Uniformity Adjustment

    CP-X325W Adjustment operations (reference) 86% operation 43% operation 29% operation Adjustment Adjustment point Adjustment point point 0 14 86 100 0 14 86 100 0 14 86 100 Input signal (%) Input signal (%) Input signal (%) 14% operation 0% operation...
  • Page 8 CP-X325W Adjust menu Major adjustment lattice point position VIDEO C. UNIF. DAC-P GAMMA LEVEL Adjust Tone menu No. 1 Major adjustment lattice point No. Adjustment procedure 1 (when a color differential meter is used) 1 First adjust [MIN] tone [G:].
  • Page 9 CP-X325W 11. Then adjust [MAX] tone [R] and [B]. 14. Then measure the color coordinates for adjust- Select [No. 2] [B:] and press the [MENU SELECT] ment point [No. 10] and adjust [No. 10] [R:] and key on the Remote control transmitter to change [B:] so that the color coordinates are as follows.
  • Page 10 CP-X325W 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 11: Troubleshooting

    CP-X325W 5. Troubleshooting Check points at trouble shooting ESPL E302 ESPR E803 E806 S301 E807 E800 E808 P702 P502 P602 E804 S302 S303 E802 D302 E801 D301 D303 E809 S305 S304 S307 S306 S308 EV01 E101 S309 PWB ass'y Main...
  • Page 12 CP-X325W Power can not be turned on voltage input Disconnect at pins TSW form Power unit Open E800 on the PWB ass’y (circuit). And check Main at standby TSW short or mode? open? (TP46): +14V (TP47): +17V Short (TP48): +6V (TP49): +4.3V...
  • Page 13 CP-X325W Lamp does not light What is the state of Light Light Change the lamp. Lamp LAMP indicator Does lamp light? during operation? Not light Not Light Is the voltage at L817 on the PWB ass’y Main PWB ass’y Main fixed to "L"...
  • Page 14 CP-X325W Picture is not displayed when the RGB signal is input Check at operating mode Are signal input at each pin of PWB ass’y Signal E101 on the PWB ass’y Main? : (TP1R) : R signal : (TP1G) : G signal...
  • Page 15 CP-X325W Picture is not displayed when the VIDEO Signal is input Check at operating mode voltage input at pins E800 on the PWB ass’y Main? Power unit (circuit) (TP46): +14V (TP47): +17V (TP48): +6V (TP49): +4.3V Are signal input at these pins of EV01 on the PWB ass’y...
  • Page 16 CP-X325W No sound Check at operating mode Are signal input at these pins of EV01 on the PWB ass’y Main? PWB ass’y Signal : Audio(L) : Audio(R) PWB ass’y Main Speaker Can not control to RS-232C Check at operating mode...

  • Page 17: Service Points

    CP-X325W 6. Service points • Cautions when removing the PWB Ass'y Main When removing the PWB Ass'y Main, there is danger of damaging the connector connecting cables and the PWB Ass'y Signal. 1) Disconnect 11 cables and remove 6 screws.
  • Page 18 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. In that case please contact our distributor.
  • Page 19 CP-X325W • Loading the Battery Install the AA batteries into the remote control. 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 20: Replacing The Lamp

    CP-X325W 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 21: Message Table

    CP-X325W Message table On-screen display The following messages are displayed on the screen. "CHANGE THE LAMP" Lamp has 1,700 hours on it and may need to be changed. "AFTER REPLACING LAMP, RESET THE LAMP TIMER" "CHANGE THE LAMP" "AFTER REPLACING LAMP, Lamp has 1,979 hours on it.

  • Page 22: Block Diagram

    CP-X325W 7. Block diagram – 22 –...

  • Page 23: Connector Connection Diagram

    CP-X325W 8. Connector connection diagram S-VIDEO ESM2 EV01 E302(DF13-H) CNTH Thermistor PWB ass'y MAIN C.VIDEO MOUSE E950(DF13-2P) REMOTE E806 E806(DF13-H) CNRM L.IN 1 PWB REMOTE 2 ass'y S.CIN P502 PSIG 3 R/C P602 VSSGR S.YIN P702 VSIG1 VSIG2 CVBSIN VSIG3...
  • Page 24 Preparation for wiring of Power unit Wiring of Speaker Cross the CNPOW and Speaker (R) Speaker (L) To PWB ass'y Main temperature switch lead. CNPOW Temperature temperature CN104 switch lead switch CN102 Power unit ESPR ESPL CN103 Upper view (Speaker) Position of Position of rib of front bezel.
  • Page 25 TAPE1 Ballast cover Folding part of the lead fixed not to pass under the PWB ass’y Main. PWB ass’y Main Folding part To PWB ass’y Main E803,E807 FOOT HOLDER Ballast cover To Power unit (circuit) Panel R CN104 Sirocco fan Hook the lead of Power unit Panel B (Ballast) at the claw.
  • Page 26 (1) Push in CNPOW,CNBAR and CNTH between the Foot folder and Styling not put in rib when Power unit. front bezel assembling. (1) Let CNPOW pass through (2) You may insert which connector of under the rib. To PWB ass’y CNPOW E803 and E807.

  • Page 27: Basic Circuit Diagram

    CP-X325W 10. Basic circuit diagram Parts with hatching are not mounted. – 27 –...
  • Page 28 CN101 CN101 CN101 RF101 D101 D103 F101 T101 CR101 R102 R115 L101 L102 IC101 R116 L104 D104 POWER UNIT ( CIRCUIT ) 1/2...
  • Page 29 L301 T201 D302 CN102 R205 R231 R230 R229 L304 D303 CN104 L-TEMP CN104 L-TEMP L201 D204 CN102 14.5V R218 CN102 FAN ON/OFF D203 R222 R314 CN103 CN103 CN103 C314 R318 SIGNAL L302 CN103 D301 CN102 R225 C315 R319 L303 L305 CN102 4.3V CN102...
  • Page 30 CP-X325W PWB ass'y SENSOR PWB ass'y SWITCH PWB ass'y REMOTE – 30 –...

  • Page 31: Disassembly Diagram

    CP-X325W 11. Disassembly diagram M : Metric screw T : Tapping screw T3X12 T3X12 M3X8 M3X65 M3X65 M3X6 M3X6 – 55 –...
  • Page 32 CP-X325W M3X8 M : Metric screw T : Tapping screw M3X25 M3X10 T3X12 T3X12 T3X12 T3X12 T3X12 M3X8 M3X8 T3X12 T3X10 M3X8 M3X8 M3X8 T2X5 – 56 –...

  • Page 33: Replacement Parts List

    CP-X325W 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 receiver through improper servicing.

  • Page 34: Option Parts List

    CP-X325W 13. Option parts list Caution The cables (power cord/video cable, audio cable, RGB cable and other cables) must be used with the core set to the projector side. Use the cables which are included with the projector or specified.
  • Page 35 CP-X325W RS-232C communication Caution The specified RS-232C cable has the user's manual with RS-232C command table. (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.
  • Page 36 CP-X325W 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 37 CP-X325W 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 38 CP-X325W 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 39 CP-X325W Command data chart Command data Names Operation type Header Action Type Setting code BE EF 06 00 2A D3 01 00 00 60 00 00 Power BE EF 06 00 BA D2 01 00 00 60 01 00 BE EF...
  • Page 40 CP-X325W Command data chart Command data Names Operation type Header Action Type Setting code BE EF 06 00 0D 83 02 00 00 21 00 00 V.Position Increment BE EF 06 00 6B 83 04 00 00 21 00 00...
  • Page 41 CP-X325W MEMO – 65 –...
  • Page 42 CP-X325W YK No. 0507E Digital Media Systems Division QR46911 Printed in Japan (M)

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