Hitachi CP-RS55 Service Manual
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Hitachi CP-RS55 Service Manual

Multimedia lcd projector
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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 Ltd.
Be sure to read this manual before servicing. To assure safety from fi re, 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 replacing the lamp, avoid burns to your fi ngers as the lamp becomes very hot.
2. Never touch the lamp bulb with a fi nger 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 LENS/PRISM assembly,
do not hold the FPC of the LCD module assembly.
6. Use the cables which are included with the projector or specifi ed.
1. Features ----------------------------------------------- 2
2. Specifi cations ----------------------------------------- 2
3. Names of each part --------------------------------- 3
4. Adjustment --------------------------------------------5
5. Troubleshooting ------------------------------------ 11
6. Service points -------------------------------------- 16
7. Wiring diagram ------------------------------------- 32
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Multimedia LCD Projector
Caution
Service Warning
Contents
October 2004 Digital Media Division
No. 0549
CP-RS55
PJ400
8. Disassembly diagram ----------------------------- 36
9. Replacement parts list ---------------------------- 44
10.RS-232C commands ----------------------------- 45
11. Block diagram -------------------------------------- 53
13.Basic circuit diagram ------------------------------ 55
(C12S)
(C12S)

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Summary of Contents for Hitachi CP-RS55

  • Page 1: Table Of Contents

    Be sure to read this manual before servicing. To assure safety from fi re, 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

    1. Features • High Brightness • Low Noise • Compact Body 2. Specifications Drive system TFT active matrix Liquid clystal Panel size 1.4cm (0.55 type) panel Number of pixels 800 (H) x 600 (V) Lamp 165W UHB Video : Analog 0.7Vp-p(75Ω termination) signal RGB IN H/V.

  • Page 3: Names Of Each Part

    3. Names of each part ● Part names Projector Focus ring Remote sensor Vent Speaker Lens Elevator button Lens cover Front-Right side Elevator foot Lamp cover Filter cover (Lamp unit is inside.) (Air filter and intake vent are inside.) Bottom side Power switch Control buttons AC inlet...
  • Page 4 Controls LAMP indicator LAMP TEMP TEMP indicator POWER POWER indicator INPUT INPUT button Cursor buttons ▲,▼,◄,► MENU STANDBY/ON button STANDBY/ON Remote control STANDBY/ON button SEARCH button RGB button AUTO button VIDEO button VIDEO SEARCH BLANK button ASPECT button ASPECT AUTO BLANK MAGNIFY VOLUME...

  • Page 5: Adjustment

    4. Adjustment 4-1 Before adjusting 4-1-1 Selection of adjustment When any parts in the table 4-1 are changed, choose the proper adjusting items with the chart. Table 4-1: Relation between the replaced part and adjustment Adjustment Replaced White Color Convergence E-POS Ghost Flicker...
  • Page 6 4-2 Convergence adjustment 1. Open FACTORY MENU and then select Signal pattern for internal adjustment OPTION > CNV-V. Use R and/or B so that three colors of images can be converged at center, top and bottom of the screen. 2. In the same way, select OPTION > CNV-H and use R and/or B so that three colors of images can be converged at center, left and right of the screen.
  • Page 7 4-5 Flicker adjustment (V.COM adjustment) Adjustment procedure Signals for internal adjustment 1. Make this adjustment after completing the adjustment in 4-4 Ghost adjustment. 2. Use DAC-P - V.COM - R: in the FACTORY MENU to adjust so that the flicker at the center of the screen is less than the flicker at the periphery.
  • Page 8 4-8 Color uniformity adjustment Preparations 1. Perform these adjustments after the white balance 6. To temporarily turn correction off, place the adjustment described in Section 4-7. cursor on [C.UNIF.] in the Adjust Tone menu and 2. Make a color uniformity adjustment for the follow- press the [ ] key.
  • Page 9 Adjustment procedure 1 (When a color differential meter is used) 1. First adjust [MID-L] tone [G:]. 9. Similarly, measure adjustment points [No.3] to 2. Select adjustment point [No.2][G:]. [No.17] and adjust their color coordinates start- When the background is not [G] monochrome, ing in order from the small number points.
  • Page 10 Adjustment procedure 2 (visual inspection) 1. First adjust [MIN] tone [G:]. 6. View measurement points [No.2], [No.3], 2. Select [No.2] [G:]. [No.10] and [No.11]. Adjust the [R] and [B] of If the background is [G] monochrome, press the each measurement point so that they have the [ENTER] key on the Remote control transmitter same color as measurement point [No.1].

  • Page 11: Troubleshooting

    5. Troubleshooting Check points *Top view of the projector after the silver gilding on the lamp house detached. PWB Assembly SW ESPL E803 E800 E801 E804 D303 D302 D301 (LAMP) (TEMP) (Power) E301 E802 P501 P601 PWB assembly MAIN P701 E807 E805 E302...
  • Page 12 Power can not be turned on Disconnect voltage input at TSW form Power unit pins (1)(3)(5)(7) of E800 Open (circuit). And check on the PWB assembly TSW short or Main at standby open? mode? (1): +0V (3): +17V Short (5): +6.6V (7): +4.1V Fuse on the Power unit (circuit)
  • Page 13 Lamp does not light What is the Light state of LAMP indicator Is the LAMP Install the Lamp D303 during operation? installation correct? Not light Light Change the lamp. Lamp Does lamp light? Not light Is the voltage at the "L"...
  • Page 14 Picture is not displayed only when the RGB signal is input Check at operating mode voltage input at pins(1)(3)(5)(7) of Power unit E800 on the PWB (circuit) assembly MAIN? (1):+13.2V (3):+17V (5):+6.6V (7):+4.1V LCD PRISM PWB assembly MAIN assembly Picture is not displayed only when the VIDEO, S-VIDEO signal is input Check at operating mode voltage input at...
  • Page 15 Can not control to RS-232C The check after parts change 1. PC power supply OFF 2. Connection of cable 3. Projector starting 4. PC starting Check the *When not operating : RS-232C cable. Use cross cable PC set up change of cable. Are pin No.

  • Page 16: Service Points

    6. Service points 6-1 Lead free solder [CAUTION] This product uses lead free solder (unleaded) to help preserve the environment. Please read these instructions before attempting any soldering work. CAUTION Always wear safety glasses to prevent fumes or molten solder from getting into the eyes. Lead free solder can splatter at high temperatures (600˚C).
  • Page 17 6-2 Replacing The LCD/PRISM assembly You should not replace separately the parts of the LCD/PRISM assembly. In case of a failure in any parts of LCD/PRISM assembly, replace the whole LCD/PRISM assembly. Do not disassemble the unit becaouse replacement of separate parts is not possible.
  • Page 18 3. Maintenance point Swab Each color part has same Holder Optical filter construction. By using swab and air duster, you can easily remove dust from panel and optical filter. Panel Actual formation Separatied formation 4. Cleaning the panels and optical filters (1) Turn on the set and lit on the lamp.
  • Page 19 6-4 Cleaning up dust from multilens 1. Preparation Please prepare cleaning tools and materials as follows. (1) Air duster (Dust blower, spray can) (2) Swab for cleaning ; P#NX08061, ”Cotton stick L147” (3) Vacuum cleaner 2. Remove the lamp door and the lamp assy. (1) Turn off the projector, and unplug the power cord.
  • Page 20 6-5 Putting batteries WARNING Always handle the batteries with care and use them only as directed. Improper use may result in battery explosion, cracking or leakage, which could result in fi re, injury and/or pollution of the surrounding environ- ment. •...
  • Page 21 6-6 Air filter WARNING ● Do not replace the air fi lter during use or immediately after use. Handling while the projector is in a high temperature could cause a burn and/or malfunction to the projector. Before operating, make sure that the power swich is off, that the power cord is not plugged in, and that the projector is cool adequately.
  • Page 22 5. Position the air filter and filter cover into place. Usual filter cover Push the points of “PUSH” word Interlocking the tabs, with claws to fix the air filter. snap the filter cover into place. Tabs Filter cover for bottom-up use Interlocking the tabs, snap the filter cover into place.
  • Page 23 6-7 Lamp WARNING HIGH VOLTAGE HIGH TEMPERATURE HIGH PRESSURE ● The projector uses a high-pressure mercury glass lamp. The lamp can break with a loud bang, or burn out, if jolted or scratched, handled while hot, or worn over time. Note that each lamp has a different life- time, and some may burst or burn out soon after you start using them.
  • Page 24 1. Turn the projector off, and unplug the power cord. Allow the lamp to cool for at least 45 minutes. 2. Prepare a new lamp (the lamp type number = DT00702 or RCL-004 for PJ400 and DT00701 for CP-RS55) If the projector is mounted on the ceiling, or if the lamp has broken, also ask the dealer to replace the lamp.
  • Page 25 6-8 Other care WARNING Before caring, make sure the power switch is off and the power cable is not plugged in, and then allow the projector to cool suffi ciently. The care in a high temperature state of the projector could cause a burn and/ or malfunction to the projector.
  • Page 26 6-9 Notice of AUTO adjustment Use of AUTO adjustment with the image through RGB input optimizes V_POSI, H_POSI, H_SIZE and H_PHASE automatically. In case that projected image has dark tone around its peripheral, AUTO operation sometimes makes artifacts in the image, shifts capture area and so on. Those failures are caused by period of image data is not exactly distinguished to period of blanking on signal processing.
  • Page 27 (CP-RS55 only)
  • Page 28 (for CP-RS55 only)
  • Page 29 Related Messages (PJ400 only) When the unit’s power is on, messages such as those shown below may be displayed. When any such message is displayed on the screen, please respond as described below. Although these messages will be automatically disappeared around several minutes, it will be reappeared every time the power is turned on.
  • Page 30 6-11 Regarding the indicator lamps Lighting and flashing of the POWER indicator, the LAMP indicator, and the TEMP indicator have the mean- ings as described in the table below. Please respond in accordance with the instructions with in the table. POWER LAMP TEMP...
  • Page 31 6-13 HIDDEN SERVICE MENU To display the OSD for “HIDDEN SERVICE MENU” set up. HIDDEN SERVICE By the control panel By the remote control transmitter FILTER TIME 1. Display the Advance menu by 1. Display the menu by the MUTE COLOR BLACK the “MENU”...

  • Page 32: Wiring Diagram

    7. Wiring diagram...

  • Page 36: Disassembly Diagram

    8. Disassembly diagram...
  • Page 38 Notice 1. Removes the UPPER CASE assembly (1) Turn over the projector slowly, so that the bottom is facing up. (2) Unscrew five tapping screws on the bottom and 2 merter screws on the rear. (3) Turn the focus ring in the direction shown in the figure to shift the lens inward. (4) Stick a hard and thin stick into a hole (2mm in diameter) on the right side of the projector to unclip the UPPER CASE assembly from the BOTTOM CASE assembly.
  • Page 39 2. Cautions when removing the PWB assembly MAIN When removing the PWB assembly MAIN, there is danger of damaging the connector connecting cables. (1) Disconnect 13 cables and remove 3 screws. 3 screws PWB assembly MAIN (2) Lift up the rearward of the PWB assembly MAIN to the front, while pushing rear portion of bottom case toward the outside so that the terminals of MAIN board may not be caught in bottom case.
  • Page 40 (2) Take the Power Sheet off, and then unscrew a screw with a plastic washer. Screw POWER UNIT Power Sheet (CIRCUIT) In removing POWER BOARD(CIRCUIT) from the bottom case assembly, use flat screw driver or fine tool to unclip the holder with the arrow shown below. POWER UNIT(CIRCUIT) Clip 4.
  • Page 41 5. Putting the power supply unit together after the maintenance of the POWER UNIT (CIRCUIT) and/or the POWER UNIT (BALLAST). WARNING Assemble the power supply unit with care to achieve the required insulation. Incor- rect assembly could cause a fi re and/or an electric shock. Attaching the Power Sheet correctly...
  • Page 42 6. How to exchange the DICHROIC OPTICS UNIT and the LENS ASS’Y. How to remove the PANEL DUCT ASSY and the PJ LENS. CAUTION Please remove the PANEL DUCT ASSY before the LENS ASS’Y. Please take care of two hooks on the PANEL DUCT ASSY. Please remove three rivets and take the PANEL DUCT ASSY off.
  • Page 43 7. Replace the LCD/PRSM assembly To keep up good condition on optics. Please pay attention to the LCD/PRSM ASSY exchange. Please follow the direction below in order to exchange parts. (1) How to remove damaged LCD/PRSM ASSY Please detach PANEL COVER. CAUTION When you take off PANEL COVER, please take care not to break its hooks.

  • Page 44: Replacement Parts List

    THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA VIDEO SEARCH ASPECT AUTO BLANK MAGNIFY VOLUME MUTE FREEZE KEYSTONE RGB Cable Power Cord ZOOM POSITION MENU ENTER RESET Remote Control Filter Cover H ASSY C12SM...

  • Page 45: Rs-232C Commands

    10. RS-232C communication RS-232C cable(Cross) CONTROL port RS-232C port of the projector of a computer - (1) (1) CD RD (2) (2) RD TD (3) (3) TD - (4) (4) DTR GND (5) (5) GND - (6) (6) DSR RTS (7) (7) RTS CTS (8) (8) DTS...
  • Page 46 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 47 Command data chart Command Data Names Operation Type Header Action Type Setting Code Power Turn off BE EF 06 00 2A D3 01 00 00 60 00 00 Turn on BE EF 06 00 BA D2 01 00 00 60 01 00 BE EF 06 00...
  • Page 48 Command Data Names Operation Type Header Action Type Setting Code User Gamma Point 1 BE EF 06 00 08 FE 02 00 90 30 00 00 Increment BE EF 06 00 6E FE 04 00 90 30 00 00 Decrement BE EF 06 00 BF FF...
  • Page 49 Command Data Names Operation Type Header Action Type Setting Code COLOR TEMP BE EF 06 00 BC F4 02 00 B7 30 00 00 OFFSET B Increment BE EF 06 00 DA F4 04 00 B7 30 00 00 Decrement BE EF 06 00 0B F5...
  • Page 50 Command Data Names Operation Type Header Action Type Setting Code OVER SCAN BE EF 06 00 91 70 02 00 09 22 00 00 Increment BE EF 06 00 F7 70 04 00 09 22 00 00 Decrement BE EF 06 00 26 71 05 00...
  • Page 51 Command Data Names Operation Type Header Action Type Setting Code ZOOM BE EF 06 00 D0 D0 02 00 0A 30 00 00 Increment BE EF 06 00 B6 D0 04 00 0A 30 00 00 Decrement BE EF 06 00 67 D1 05 00 0A 30...
  • Page 52 Command Data Names Operation Type Header Action Type Setting Code MENU POSITION V BE EF 06 00 40 D7 02 00 16 30 00 00 Increment BE EF 06 00 26 D7 04 00 16 30 00 00 Decrement BE EF 06 00 F7 D6 05 00...

  • Page 53: Block Diagram

    11. Block diagram...

  • Page 54: Connector Connection Diagram

    12. Connector connection diagram Connector connection diagram (C12S)

  • Page 55: Basic Circuit Diagram

    13. Basic circuit diagram Parts with hatching are not mounted. PWB assembly SW (C12S) PWB assembly REMC (C12S)
  • Page 56 4parallel 3series POWER UNIT (BALLAST) (C12S) Warning For handling of the circuit diagram, refer to the warning on the cover.
  • Page 57 POWER UNIT CIRCUIT (C12S)
  • Page 58 PWB assembly MAIN 1 (C12S)
  • Page 59 PWB assembly MAIN 2 (C12S)
  • Page 60 PWB assembly MAIN 3 (C12S)
  • Page 61 PWB assembly MAIN 4 (C12S)
  • Page 62 PWB assembly MAIN 5 (C12S)
  • Page 63 PWB assembly MAIN 6 (C12S)
  • Page 64 PWB assembly MAIN 7 (C12S)
  • Page 65 PWB assembly MAIN 8 (C12S)
  • Page 66 PWB assembly MAIN 9 (C12S)
  • Page 67 PWB assembly MAIN 10 (C12S)
  • Page 68 PWB assembly MAIN 11 (C12S)
  • Page 69 PJ400(C12S) Basic circuit diagram list PWB assembly SW PWB assembly MAIN 5 PWB assembly REMC PWB assembly MAIN 6 POWER UNIT BALLAST PWB assembly MAIN 7 POWER UNIT CIRCUIT PWB assembly MAIN 8 PWB assembly MAIN 1 PWB assembly MAIN 9 PWB assembly MAIN 2 PWB assembly MAIN 10 PWB assembly MAIN 3...
  • Page 70 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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