Hitachi CP-DX250 Service Manual
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Hitachi CP-DX250 Service Manual

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See also: User Manual , Quick Reference Manual
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. Moreover, do not
sell, give, or export these items, or grant permission for
use to parties with such objectives. Forward all inquiries
to Hitachi Consumer Electronics Co., Ltd.
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 DLP 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 (circuit) and power unit (ballast), after turn on the projector.
4. Do not touch the exhaust fan, during operation.
5. Use the cables which are included with the projector or speci fied.
6. The pictures and illustrations in this manual are for illustrative purposes.
They may differ slightly from the projector you work on.
1. Features ------------------------------------------------------ 2
2. Specifications ----------------------------------------------- 3
3. Names of each part ---------------------------------------- 1 0
4. Adjustment --------------------------------------------------- 1 3
5. Troubleshooting ------------------------------------------ 25
6. Service points --------------------------------------------- 35
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Multimedia DLP Projector
YK
CP-DX250/CP-DX300
(DL1-X25/DL1-X30)
All US & Canada warranty requests should be
directed to: 800-HITACHI
a special warranty service program. ***
Caution
Service Warning
Contents
7. Wiring diagram -------------------------------------------- 40
8. Disassembly diagram ----------------------------------- 55
9. Replacement parts list ---------------------------------- 58
10. Block diagram --------------------------------------------- 59
11.
RS-232------------------ -----------------------------------
December 2012
last update: 2/21/13
No.0682E
*** These models have
- 60

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Summary of Contents for Hitachi CP-DX250

  • Page 1 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 DLP Projector. Be sure to read cautionary items described in the manual to maintain safety before servicing.

  • Page 2: Table Of Contents

    Content Index 1. Features ........................2 2. Specifications ......................3 2.1 Specification Overview ..................3 2.2 Electrical Specification..................4 3. Names of Each Part ....................10 3.1 Projector Exterior View ................... 10 3.2 Control Panel ....................11 3.3 Remote Control ....................12 4.

  • Page 3: Features

    1. Features The projector integrates high-performance optical engine projection and a user-friendly design to deliver high reliability and ease of use. The projector offers the following features. • Presentation timer for better control of time during presentations • Supports 3D display •...

  • Page 4: Specifications

    2. Specifications 2.1 Specification Overview • All specifications are subject to change without notice. General Product name Projector Optical Resolution 1024 x 768 XGA Display system 1-CHIP DMD Lamp 196 W UHP Electrical Power supply AC 100-120V: 2.9 A, AC 220-240V: 1.4 A Power consumption AC 100-120V: 250W, AC 220-240V: 235W Mechanical...

  • Page 5: Electrical Specification

    2.2 Electrical Specification 2.2.1 Timing Table...
  • Page 8 2.2.2 Characteristics of inputs/outputs Signal Parameter Type RDATA Impedance GDATA Amplitude Volts peak-to-peak BDATA Black pedestal Volts Pixel Clock M Hz GDATA_SOG Impedance Amplitude Volts peak-to-peak Video amplitude Volts peak-to-peak Sync amplitude Volts peak-to-peak Black pedestal Volts Pixel Clock M Hz HDATA Impedance K ohm...
  • Page 9 2.2.3 Electrical Interface Character 2.2.3.1 Interface Definition： ： ： ： 15 pin definition of the mini D-sub female for DDC2B protocol Definition Definition Definition Definition Pin Definition Red (Pr) Green (Y) Blue (Pb) Red return Green return Blue return DDCP 5V H-sync V-sync Video Input...
  • Page 10 HDMI Input Pin Pin definition Pin Pin definition TMDS Data2+ TMDS Clock Shield TMDS Data2 Shield TMDS Clock– TMDS Data2– TMDS Data1+ Reserved (N.C. on device) TMDS Data1 Shield TMDS Data1– TMDS Data0+ DDC/CEC Ground TMDS Data0 Shield +5V Power TMDS Data0–...

  • Page 11: Names Of Each Part

    3. Names of Each Part 3.1 Projector Exterior View (See Control Panel on next page for detail)

  • Page 12: Control Panel

    3.2 Control Panel...

  • Page 13: Remote Control

    3.3 Remote Control...

  • Page 14: Adjustment

    4. Adjustment 4.1 Repair Flow 4.2 Basic Operating For Switching Modes 4.3 Service Tool 4.4 Adjustment and Alignment 4.4.1 Color Wheel Delay Alignment 4.4.2 PC Alignment Procedure 4.4.3 Overfill (Blue-Edge) adjustment...

  • Page 15: Repair Flow

    4.1 Repair Flow Function Abnormal (1) Follow Trouble shooting flow to debug (2) Check LED message/Error count in factory mode Check connectivity or change parts Check Change Change Change connectivity or Light M/B? change other Pipe? parts Use Service Tool to Read S/N Replace Light Pipe Replace M/B...

  • Page 16: Basic Operating For Switching Modes

    4.2 Basic Operating For Switching Modes (1) Standby Mode： ： ： ： When standby mode, system power consumption will be less than 0.5Watt. If user wants to enter this mode, user can just plug in power cord. Power LED will show Red for 1 sec then power LED show Purple.
  • Page 17 (3) Power On： ： ： ： User can press Keypad Power to turn on projector. User can also use IR remote control to do this action. When turning on, power LED will show blue continuously. (4) Power Off： ： ： ： If user wants turn off projector, user can click keypad Power two times, or use IR remote control.

  • Page 18: Service Tool

    4.3 Service Tool When to use service tool: – Before FW re-downloading or replacing a new Main board, need to read data from Main board by service tool. – After FW downloading or a replacing a new Main board, need to write data into Main Board by service tool.
  • Page 19 Enter a new group name or select one from the “Existing Groups” list and then click “Continue.” Click “OK” and a successful installation is completed. <Notice: > Before using Service tool, please check the Control Method in Factory Mode Block 1 must be set as “RS232.”...
  • Page 20 How to Use Service Tool (1) Read Data From Main Board: Connect PC with projector by a RS232 cable. Turn on projector. From Windows Start Menu -> Select “Service Tool” -> “Tool.” Change to connected COM port and Click “Port Open” icon. 4-1.
  • Page 21 Click “Save” to save data into the assigned file name. Turn off projector. 6-2. This window will pop out, and it shows the file saving folder. 6-3. Enter file name here. 6-4. Click “Save” to save data. 6-1. Click “Save” icon. <Note :>...
  • Page 22 (2) Write Data into Main Board: 1. After changing Main board, or download firmware, reconnect power cable and RS-232 cable into Projector. 2. “Load From data” & “Retrieve System” : (1) Click “Load From data” and select load file. (2) Click “Retrieve System” to write the values into main board. 1-2.

  • Page 23: Adjustment And Alignment

    4.4 Adjustment and Alignment Alignment 4.4.1 Color Wheel Delay Alignment Color Wheel Delay Alignment Procedure: Enter Factory Mode Enter Block 1 Connect PC and display R/G/B/Gray Test Pattern (RGBRAMP). display R/G/B/Gray Test Pattern (RGBRAMP). Change CW Delay by adjusting the pattern to smooth. Change CW Delay by adjusting the pattern to smooth.
  • Page 24 4.4.2 PC Alignment Procedure Equipment： ： ： ： Pattern generator (Notice: If uses PC, the signal level is calibrated to this PC) OSD Default value： ： ： ： Item Value Cal R Offset Cal G Offset Cal B Offset Cal R Gain 1024 Cal G Gain 1024...
  • Page 25 4.4.3 Overfill (Blue-Edge) adjustment 1. “Full White Pattern” is suggested for this alignment. 2. Adjust 2 Overfill adjustment screws (upper side / lower front side of Optical Engine) behind Color Wheel. 3. Alignment Criteria is to adjust these 2 screws until “No Dark Edges” and “No Shadows” can be observed in image.

  • Page 26: Troubleshooting

    5. Troubleshooting 5.1 Basic Trouble Shooting for End Customer...

  • Page 27: System Analysis Flow

    5.2 System Analysis Flow Step ： 1. Check Lamp Door Keypad LED OK ? 2. Check Connection between Power BD and Main BD 3. Check Power Board and Lamp Door SW 4. Check Main Board Step ： 1. Check Lampen wire (Lamp wire and Ballast wire) 2.Check Lamp Lamp On ? 3.
  • Page 28 Step ： 1. Check OSD Lamp Hours 2. Check Lamp Door Power Auto Turn Off? 3. Check Lamp still light or not? 4. Check Fan still spin or not? 5. Check Thermal status Step ： 1. Check Remote module battery IR Remote Control NG ? 2.

  • Page 29: Led Messages Definition

    5.3 LED Messages Definition LED Messages Definition LED Usage: LED Name Detailed Description Detailed Description Power LED Display the power on/off sequence status Display the power on/off sequence status Purple: Power Off (Blue + Red) Purple: Power Off (Blue + Red) Blue : Power On Blue : Power On Blink : Warming up/Shutting Down &...

  • Page 30: Error Count Messages Definition

    5.4 Error Count Messages Definition In Factory Mode Block 4: LAMP Fail : LAMP OFF FAN 1 Speed Error : Blower FAN speed error (speed over± 20%) FAN 2 Speed Error : Lamp FAN speed error (speed over± 20%) These items aren't in use. Sensor 1 Open Error : Main Board sensor error This item isn't in use.

  • Page 31: Power Supply Trouble Shooting Guide

    5.5 Power Supply Trouble Shooting Guide This document is prepared to be a guide to repair trouble sets, some problems happen more frequently are taken as examples. 5.5.1 Problems (1) No power No Power Check power BD Change main Is CN701 pin 9 =3.3v? Pin9 Change power...
  • Page 32 (2) Lamp is not turned on Lamp is not turned on Has lamp wire connect correct? (Between Ballast BD and lamp) Wire connect certainty Has power connector Wire connect certainty correct? (Between Power BD and ballast BD) Has enable wire connect Wire connect certainty correct? (Between Main BD and ballast BD)
  • Page 33 Has TH breaker wire Wire connect certainty connect correct? (Breaker wire to power BD) Has color wheel operated Change color wheel normally? If changes ballast BD, lamp Change lamp can be turned on or not? Change ballast...

  • Page 34: Optical Trouble Shooting Guide

    5.6 Optical Trouble Shooting ptical Trouble Shooting Guide Item Trouble Shooting Guide Trouble Shooting Guide Change lamp Brightness Uniformity Change lamp Check PC Alignment Check if in user’s menu, brightness & contrast are default contrast are default Clean DMD Clean Projection Lens FOFO Contrast Clean Projection Lens Clean DMD Chip...
  • Page 35 Change Projection Lens Check parallel between Projection Lens datum and DMD Chip Focus Clean DMD Clean DMD Chip Dust Check connector between Chip BD and Main BD and Main BD Horizontal/Vertical Re-install DMD with Chip BD Strips Change new Chip BD Change new DMD Chip Pixel Fail Change new DMD...

  • Page 36: Service Points

    6. Service Points 6.1 Maintenance Cleaning the lens Clean the lens whenever you notice dirt or dust on the surface. • Use a canister of compressed air or air gun to remove dust. • If there is dirt or smears, use lens-cleaning paper or moisten a soft cloth with pure alcohol and gently wipe the lens surface.

  • Page 37: Replacing The Lamp

    6.2 Replacing The Lamp Prepare a new lamp. Lamp P/N: CPDX250LAMP Type number: DT01461. WARNING • The projector uses a high-pressure mercury lamp (Hg-Lamp). • The lamp can break with a loud bang, or burn out, if jolted or scratched, handled while hot, or worn over time.
  • Page 38 5. Remove the protection film. Loosen the screw that secures the lamp. Refer to the right figure to identify the screw. 6. Disconnect the lamp's wire connector from the projector, and then slowly pick up the lamp by the handle. CAUTION •...

  • Page 39: Resetting The Lamp Timer

    12. Tighten the screw that secures the lamp door. CAUTION • Loose screw may cause a bad connection, which could result in malfunction. • Do not over tighten the screws. 13. Restart the projector. CAUTION Do not turn the power on with the lamp door removed. 6.3 Resetting the Lamp Timer (After changing a new lamp, need to reset lamp timer.) 14.

  • Page 40: Screw / Torque List

    6.4 Screw / Torque List Screw for Mechanical parts: Description Torque Q'ty Type Where use total Q'ty Type Head Length Surface (N-m) Unit M2.5 MACH 0.29+/- 0.05 lamp door Power board == lower case Ballast == lower case nozzle == lower case Upper case == Lamp box 0.54+/- 0.05 Lamp box == lower case...

  • Page 41: Wiring Diagram

    7. Wiring Diagram Assembly Key Point and Wiring diagram 7.1 Module Assembly Key Point – Optical Engine 7.1.1 Assembly LP Module 7.1.1.1 Assembly LP Module to HSG DMD i. Assembly “Clip LP” and lock with screw well (Fig. 7-1). ii. Press CLIP of RE_BKT_LP first, and then push it into the hole (Fig. 7-2). iii.
  • Page 42 LP Datum of DMD HSG Overfill adjustment screws Fig. 7-3 1. Place Clips on BKT surface 2. Push Baffle LP to hook DMD HSG Fig. 7-4 Fig. 7-5 Push on the left corner until lock the screw well Lock the screw well Fig.
  • Page 43 Overfill Vertical Adjustment Screw M2, 8L Overfill Horizontal Overfill Horizontal Adjustment Screw Adjustment Screw M2, 8L M2, 8L Fig. 7-8 7.1.2 ILL HSG and DMD HSG Assembly: ILL HSG and DMD HSG Assembly: 7.1.2.1 To assemble "ILL HSG" (and its attachments) with To assemble "ILL HSG"...
  • Page 44 7.1.3 DMD and Chip B/D Module: DMD and Chip B/D Module: 7.1.3.1 Judge Chip B/D and DMD alignment keying first (Fig. Judge Chip B/D and DMD alignment keying first (Fig. 7-11, 7-12 12). 7.1.3.2 Alight keying and Assemble DMD to Chip B/D (Fig. Alight keying and Assemble DMD to Chip B/D (Fig.
  • Page 45 Screw Torque must be confirmed to be Screw Torque must be confirmed to be 0.539-0.637 N-m. spring screw Press Heat-sink when assemble spring screw ○ ○ ○ ○ Fig. 7-16-1 Fig. 7-16 16-2 7.1.4.3 Assemble “CW Module” to “DMD HSG” and lock with screws well (Fig. Assemble “CW Module”...
  • Page 46 7.1.4.5 Assemble “PL Lens” and lock with screws well (Fig. 7-19). i. Assemble Lens and the Assembly direction must be horizontal, and do not impact ii. Pre-fasten Screws firstly. Screw Torque must be confirmed to be 0.098-0.196 N-m. (Fig. 7-19) iii.

  • Page 47: Module Assembly Key Point - Mechanical Parts

    7.2 Module Assembly Key Point 7.2 Module Assembly Key Point – Mechanical Parts 7.2.1 Lower case assembly Front Adjust Foot Foot Rubber pad Rubber pad Rear Adjust Foot Foot 7.2.2 (1) Make sure the mylar is attached to the ballast. Make sure the mylar is attached to the ballast.
  • Page 48 7.2.3 Assemble lamp box assembl embly on lower case Lamp wire Plug Lamp wire first wire first Door switch wire Door switch wire Screw*1 Lamp Box assembled under hook 7.2.4 Assemble nozzle assembl embly and blower fan on lower case Mylar...
  • Page 49 Thermal break wire Thermal break wire NOZZLE TOP NOZZLE BOT SHD THERMAL BREAKER CU SHD THERMAL BREAKER CU Insert the thermal breaker wire first, nsert the thermal breaker wire first, and then put nozzle in correct position. put nozzle in correct position. Screw*1 Plug Thermal break wire Plug Thermal break wire first...
  • Page 50 7.2.5 Assemble speaker & FAN with cable on lower case 7.2.5 Assemble speaker & FAN with cable on lower case Speaker & FAN wire must go under this hook Lamp Fan (Fan2) Speaker 7.2.6 Assemble the engine, lamp module , lamp module and EMI gasket on lower case and EMI gasket on lower case.
  • Page 51 7.2.8 Assemble main bracket Notice : the Bracket must not interfere the pins. Screw Screw 7.2.9 Assembling main board and main shielding Assembling main board and main shielding cable Speaker cable CW FFC cable CW FFC cable Blower Ballast Lamp sensor <Notice: >...
  • Page 52 Screw*5 CW FFC CW FFC cable cable routing CW sensor sensor Cable routing (must in hook) (must in hook) Cable saddle 7.2.10 Assembling rear case Screw*1 Stand-off*8...
  • Page 53 Screw*1 7.2.11 Assembling front case Assemble IR board on IR lens IR Board Assemble front case on lower case lower case...
  • Page 54 Insert wire of IR board Make sure wire route as shown, and fix the wire in cable saddle , please keep spare wire on Make sure wire route as shown, and fix the wire in cable saddle , please keep spare wire on Make sure wire route as shown, and fix the wire in cable saddle , please keep spare wire on left side of the picture.
  • Page 55 Assemble lamp door on upper case Assemble lamp door on upper case, and fix by screw*1 on front case side on front case side. Follow this direction to assemble Screw*1...

  • Page 56: Disassembly Diagram

    8. Disassembly Diagram...

  • Page 59: Replacement Parts List

    All US & Canada warranty requests should be directed to: 800-HITACHI *** These models 9. Replacement Parts List have a special warranty service program. *** PRODUCT SAFETY NOTE : Components marked with a have special characteristics important to safety. Don't degrade the safety of the projector through improper servicing.

  • Page 60: Block Diagram

    10. Block Diagram Keypad Control WT51F516 LED Indicator PWR BD IR receiver Flash Memory ISL59837 VGA OUT System EEPROM 20MHz VGA1 DAD2000 EEPROM Control VGA IN1 VGA IN2 400MHz LVDs 30bit RGB AFE1000 Video 16 pair DDP4421 S-Video HDMI1 .45 " EEPROM HDMI XGA DMD...

  • Page 61: Rs-232

    11. RS-232 11.1 RS-232 Connection 1. Below shows the illustration of connection between PC and Projector. RS-232 CROSS cable to RS-232 terminal (Female) (Female) 2. Specifications <Download cable> <pin assignment for the RS-232 (cross) cable> Description Description Interface Settings RS-232 protocol Baud Rate 115200 bps Data Length...

  • Page 62: Rs-232 Command List

    11.2 RS-232 Command List *(Each input upper case and lower case character should be action) **<CR> means press Enter key. Function Type Operation ASCII Write Power On <CR>(pow=on)<CR> Power Write Power off <CR>(pow=off)<CR> Read Power Status <CR>(pow=?)<CR> Write COMPUTER/YPbPr <CR>(sour=RGB)<CR> Write COMPUTER 2/YPbPr2 <CR>(sour=RGB2)<CR>...
  • Page 63 Control Read Lamp Mode Status <CR>(lampm=?)<CR> (continued) Write Blank On <CR>(blank=on)<CR> Write Blank Off <CR>(blank=off)<CR> Read Blank Status <CR>(blank=?)<CR> Write Freeze On <CR>(freeze=on)<CR> Write Freeze Off <CR>(freeze=off)<CR> Read Freeze Status <CR>(freeze=?)<CR> Write Menu On <CR>(menu=on)<CR> Write Menu Off <CR>(menu=off)<CR> Write <CR>(up)<CR>...

  • Page 64: Appendix - Abbreviations & Acronyms

    Appendix – Abbreviations & Acronyms Analog to Digital Aspheric Lens Bracket C/W, CW Color Wheel Concave Mirror Digital Light Processing / Texas Instruments® Digital Micro mirror Device Fold Mirror Firmware Housing Illumination Light Pipe Projection Lens Pond of Mirrors Interface Between Data terminal Equipment and Data RS232 Communications Equipment Employing Serial Binary Data Interchange...
  • Page 65 CP-DX250/CP-DX300 YK No.0682E QR83721...

This manual is also suitable for:

Cp-dx300Dl1-x25Dl1-x30

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