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Hitachi CPX1 Service Manual
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Hitachi CPX1 Service Manual

Hitachi CPX1 Service Manual

Multimedia lcd projector
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See also: Technical Manual , User 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 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 replace the lamp, to avoid burns to your fi ngers. The lamp becomes too 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 (circuit) and power unit (ballast), after 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 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 --------------------------------------------- 15
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Multimedia LCD Projector
YK

Service Warning

Contents
7. Wiring diagram -------------------------------------------- 31
8. Disassembly diagram ----------------------------------- 39
9. Replacement parts list ---------------------------------- 52
10. Block diagram --------------------------------------------- 53
11. Connector connection diagram ----------------------- 54
12.Basic circuit diagram ------------------------------------ 55
September 2006
No.0576E
Cpx1(M1-20)

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  • Page 1: Service Manual

    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

    CPX1(M1-20) 1. Features • High Brightness • Low Noise • Rich Connectivity • Compact Body • Stand Alone Presentations 2. Specifications Drive system TFT active matrix Liquid crystal Panel size 1.6cm(0.63 type) panel Number of pixels 1024 (H) x 768 (V)

  • Page 3: Names Of Each Part

    CPX1(M1-20) 3. Names of each part Projector (1) Lamp cover HOT! (1) (2) (3) The lamp unit is inside. (2) Focus ring (3) Zoom ring (4) Control panel (5) Speaker (10) (9) (8) (6) Elevator knobs (x 2) (7) Elevator feet...

  • Page 4: Control Panel

    CPX1(M1-20) Control panel (1) STANDBY/ON button (4) (5) (6) (2) INPUT/ENTER button (3) MENU button LAMP INPUT/ STANDBY/ON ENTER It consists of four cursor buttons. MENU TEMP (4) POWER indicator POWER (5) TEMP indicator (6) LAMP indicator Remote control (1) VIDEO button...

  • Page 5: Adjustment

    CPX1(M1-20) 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...
  • Page 6 CPX1(M1-20) 4-2 Flicker adjustment (V.COM adjustment) Test pattern for the adjustment Adjustment procedure 1. Use DAC-P - V.COM - R: in the FACTORY MENU to adjust so that the flicker at the center of 128/255 the screen is less than the flicker at the periphery.
  • Page 7 CPX1(M1-20) 4-5 White balance adjustment (visual inspection) Preparations 1. Perform these adjustments after the adjust- 2. Reset gamma correction before adjustment. Place the cursor on [GAMMA] in the FACTORY ments described in Section 4-5. MENU, press the [RESET] key and select RESET.
  • Page 8 CPX1(M1-20) 4-6 Color uniformity adjustments Preparations 1. Perform these adjustments after the adjustments 5. Adjustment point No.1 should not be adjusted, described in the section 4-6. because it controls the brightness of the entire 2. Make a color uniformity adjustments for the fol- screen.
  • Page 9 CPX1(M1-20) Adjustment procedure 1 (When a color differential meter is used) Note: Since excessive correction may lead to a 1. First adjust the [MID-1] tone [G:]. correction data overview during internal 2. Select adjustment point [No.2][G:]. calculations, use the following values for When the background is not [G] monochrome, reference.
  • Page 10 CPX1(M1-20) Adjustment procedure 2 (visual inspection) same color as measurement point [No.1]. 1. First adjust [MIN] tone [G:]. Adjustment technique: 2. Select [No.2] [G:]. First, adjust [B:] of the point whose color is to If the background is [G] monochrome, press the...

  • Page 11: Troubleshooting

    CPX1(M1-20) 5. Troubleshooting Check points...
  • Page 12 CPX1(M1-20) Power can not be turned on *: Be sure to unplug the power cord before measuring resistance. voltage Measure supplied at pins (7) resistance* 0Ω and (11) of E800 on the PWB between pins (7) and (11) of PWB assembly MAIN assembly MAIN in standby E800.
  • Page 13 CPX1(M1-20) Lamp does not light *: Be sure to unplug the power cord before measuring resistance. What is the state of Light LAMP indicator D303 during operation? Is the LAMP installation install the Lamp correct? Not light the voltage YES “L”=0V...
  • Page 14 CPX1(M1-20) Picture is not displayed. Confirm the splash the LCD Panels screen and the user menu CPC40 connector 54104/54132 connection to the MAIN displayed correctly? board. PWB assembly MAIN LCD/Lens prism assembly PWB assembly MAIN No sound Check at operating mode...

  • Page 15: Service Points

    CPX1(M1-20) 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 16 CPX1(M1-20) 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 because replacement of separate parts is not possible.
  • Page 17 CPX1(M1-20) 3. Maintenance point Optical filter Each color part has same construction. By using swab and air duster, you can easily remove dust from panel and optical filter. Panel Actual formation Separated formation 4. Cleaning the panels and optical filters (1) Turn on the set and lit on the lamp.

  • Page 18: Putting Batteries

    CPX1(M1-20) 6-4 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 fire, injury and/or pollution of the surrounding environ- ment.
  • Page 19 CPX1(M1-20) 6-5 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 "Cotton stick L147" (3) Vacuum cleaner 2. Put the projector on the stable stand.

  • Page 20: Cpx1(M1

    CPX1(M1-20) 5. Cleaning the multilens (1) By using the air duster, remove the dust on multilens. (2) Remove the dust on the ML-A surface using the air duster, then wipe the surface. Remove LAMP CLAP first. Remove DUST PROOF GLASS next.

  • Page 21: Air Filter

    CPX1(M1-20) 6-6 Air filter If the air fi lter becomes clogged by dust or the like, internal temperatures rise and could cause a fi re, a burn and/or malfunction to the projector. When the indicators or a message prompts to clean the air fi lter, clean the air fi...
  • Page 22 CPX1(M1-20) 6-7 Lamp HIGH VOLTAGE HIGH TEMPERATURE HIGH PRESSURE WARNING ►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 lifetime, and some may burst or burn out soon after you start using them.
  • Page 23 CPX1(M1-20) Replacing the Lamp A lamp has fi nite product life. Using the lamp for long periods of time could cause the pictures darker or the color tone poor. Note that each lamp has a different lifetime, and some may burst or burn out soon after you start using them.

  • Page 24: Caution

    CPX1(M1-20) 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 25 CPX1(M1-20) 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 26 CPX1(M1-20) 6-10 How to inactivate the security functions This projector is equipped with security functions. (1)MyScreen PASSWORD The MyScreen PASSWORD function can be used to prohibit access to the MyScreen function and pre- vent the currently registered MyScreen image from being overwritten.
  • Page 27 PIN BOX (ID Inquiring Code) 2. Send HITACHI sales company the Inquiring code (10 digits) to inquire the correct PIN code. 3. With the PIN BOX menu displayed, input the correct PIN code. Enter the correct PIN CODE that HITACHI sales company informed.
  • Page 28 CPX1(M1-20) 6-12 Related Messages 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 29: Regarding The Indicator Lamps

    CPX1(M1-20) 6-13 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 within the table.

  • Page 30: Startup Type

    LAMP ALARM Select the lamp alarm level. 3 Level ↔ 1 Level ↔ None STARTUP TYPE Select the startup screen type. 1 : shows Hitachi Logo 2 : No Hitachi Logo SOFT RESET If this is executed, all of the user data is initialized.Never use it when not required.

  • Page 31: Wiring Diagram

    CPX1(M1-20) 7. Wiring diagram...
  • Page 32 CPX1(M1-20)
  • Page 33 CPX1(M1-20)
  • Page 34 CPX1(M1-20)
  • Page 35 CPX1(M1-20)
  • Page 36 CPX1(M1-20)
  • Page 37 CPX1(M1-20)
  • Page 38 CPX1(M1-20)

  • Page 39: Disassembly Diagram

    CPX1(M1-20) 8. Disassembly diagram (See Notice 1)
  • Page 40 CPX1(M1-20)
  • Page 41 CPX1(M1-20) Notice 1. The step of the disassembly / The step of the assembly. Disassemble the projector in order of 1, 2, 3, 4, 5, 6 and 7 as shown in the diagram. Assemble the projector in order of 7, 6, 5, 4, 3, 2, and 1 as shown in the diagram.
  • Page 42 CPX1(M1-20) Notice 2. Detach and attach the upper case. Follow the procedure below to detach and attach the upper case. When disassembling a. Remove the Lamp door. CAUTION The lamp door must be removed before the upper case when disassembling the machine. If the upper case is detached with the lamp door installed, the MAIN board might be damaged.
  • Page 43 CPX1(M1-20) c. Detach the upper case CAUTION When detaching the upper case. Detach the circle point side fi rst. Otherwise, upper case will be damaged. Make sure not to damage the upper case ribs (square pointed). Make sure not to touch reverse side of main board.
  • Page 44 CPX1(M1-20) When assembling a. Tighten 7 screws on the bottom and 3 screws on the rear after attaching the upper case with the lamp door separated. In order not to make a gap between the upper and the bottom cases, tighten these screws while pressing down the upper case in the direction of the arrow.
  • Page 45 CPX1(M1-20) 4. Detaching and attaching the Panel Fan Duct assembly When disassembling Remove 1 screw and unhook the panel fan duct assembly as shown in the diagram. Lamp fan Lamp fan wire Tape Thermister Panel fan duct assembly Push each of hooks in the direction of the arrows, while remove / tighten this screw.
  • Page 46 CPX1(M1-20) 5. Attaching / Detaching the optics unit (1) Remove the three screws as shown in the diagram. And detach the optics unit vertically. (2) Put the optics unit on the bottom case, and tighten screws in order of 1, 2 and 3 as shown in the diagram.

  • Page 47: Replacing The Air Filter

    CPX1(M1-20) 8. Attaching the PWB assembly MAIN Note: Use the suitable screw for each screw holes when attaching the main board. Black screw (Tapping screw) White screw (Meter screw) 9. Replacing the air filter. Note: (1) Make sure to fit the concave part of the air filter to the convex part of the filter case.

  • Page 48: Replacing The Lamp Unit

    CPX1(M1-20) 10. Replacing the lamp unit CAUTION When replacing the lamp unit, never detach the three springs. Otherwise, it will be impossible to reuse the lamp unit. Lamp unit Lens fixation springs (3 pieces) Note: When detaching the lamp unit, detach the connector side first.
  • Page 49 CPX1(M1-20) 11. Replacing the exhaust fan Be sure to do the following works before changing the exhaust fan. a. Prepare the following replacement parts. Exhaust fan(P#: GS01411) ....1pcs Fan cushions(P#: MS01611) .....1set Fan cushion A ......2pcs Fan cushion B ......1pcs Fan cushion C ......1pcs...
  • Page 50 CPX1(M1-20) 12. Replacing the control button Be sure to do following works before changing the control button. a. Make sure the contens of new control button assembly (P#: PC07081) Control button ........1pcs Cushion A ..........1pcs Cushion B ..........3pcs b. Stick 4 pieces of the cushions to the control button.
  • Page 51 CPX1(M1-20) 14. Replacing the BOTTOM CASE Be sure to do following works before changing the BOTTOM CASE. a. Make sure the contents of the SP cushion assembly (P#:MU04391) Cushion A ..........2pcs Cushion B ..........2pcs (circle) b. Stick the 4 pieces of the cushions to the BOTTOM CASE.

  • Page 52: Replacement Parts List

    CPX1(M1-20) 9. 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 53: Block Diagram

    CPX1(M1-20) 10. Block diagram...

  • Page 54: Connector Connection Diagram

    CPX1(M1-20) 11. Connector connection diagram RGB-IN1 ES01 WIESON_3114 EASP SPEAKER PWB assembly MAIN OUT- OUT+ RESET SW S309 ALPS_SKHHLMA010 JST_ZH RGB-IN2 Molex_54104 P501 E801 ES02 WIESON_3114 Molex_54132 P601 FAN1S Molex_54104 P701 (EXHAUST) V.COM EV01 SMK_LAP5100 PSIG Molex_501568 S-VIDEO VSSG VID1...

  • Page 55: Basic Circuit Diagram

    CPX1(M1-20) 12. Basic circuit diagram Parts with hatching are not mounted. CONFIDENTIAL DOWN 56.9KHz I002 I001 KSM-2003LM2EL KSM-2003LM2EL Vout Vout C012 C002 100p-C 100p-C 1005 1005 C011 C001 1.0/10 1.0/10 R003 1005 APRC01 APRC02 APRC03 APRC04 PWB assembly REMOTE (M1-20)
  • Page 56 CPX1(M1-20) MEMO...
  • Page 57 CONFIDENTIAL Warning POWER UNIT (BALLAST) 1 (M1-20) For handling of the circuit diagram, refer to the warning on the cover.
  • Page 58 CONFIDENTIAL Warning POWER UNIT (BALLAST) 2 (M1-20) For handling of the circuit diagram, refer to the warning on the cover.
  • Page 59 CONFIDENTIAL Warning POWER UNIT (CIRCUIT) (M1-20) For handling of the circuit diagram, refer to the warning on the cover.
  • Page 60 CONFIDENTIAL +3.3VPW I201 I201 I201 DIGITAL INPUT PORT PW190 PERIPHERALS PW190 DISPLAY PORT PW190 R2C4 CH0CK IN0CLK IN0CLP CH0CP NC-D13 GCLK R2C5 DCLKOUT DCLK CH0PE IN0PEN IN0CST CH0CS NC-E18 1005 R2C6 R2K0 CH0VB IN0VBI NC-D14 1005 CH0AH IN0AHS NC-A12 1005 1005 CH0HS CHDEN...
  • Page 61 CONFIDENTIAL L251 I201 1608 RESETN PW190 R200 2.5V 65mA 1005 R203 AC15 AC15 1.0K R217 AE16 AE16 Q201 1005 AF16 AF16 C273 JUMPER R DTC114EUA AC16 2010 AC16 N251 R201 0.01/16 AD15 EMU-RESET AD15 R218 I251 1005 AE15 AE15 S29AL016D70TFI010 R205 2010 AC14...
  • Page 62 CONFIDENTIAL +3.3V R376 CPU-RESET S309 1005 I301 SKHHLMA010 R371 R379 RN5VD26C RESETN 1005 Q372 1005 SRC1202EF C390 0.1/10 1005 GND1 OUTTEMP OUTTEMPP TEMP D302 R332 INTEMP 330 1 LED-TEMP 1005 SML-210VT LAMP D303 R333 330 1 LED-LAMP 1005 SML-210VT JUMPER R E304 D301 ZH-02H...
  • Page 63 CONFIDENTIAL 240mA 495mA R836 R835 1005 1005 MOUSE Q809 2SC5343UFG PWRC I801 SI-3010KM 15.5V-Panel I892 L816 C823 I808 SN74LVC1G32DCK ->TC7SZ32FTE85L 0.033/16 MM1661JHBE 1.8V-CPU C6-K3LA C824 +1.8VCPU I802 I803 Cont MM1663DHBE MM1663DHBE 1005 470p R811 I807 C814 C816 RC_EN56 1005 TPS40222DR Cont Cont NC-6...
  • Page 64 CONFIDENTIAL TG part for BiNA5 I401 CXD3540GB from I808 CXD3540GB 3/3 L401 I401 controlled by POWER5 CXD3540GB I401 2518 275mA@1.8V CXD3540GB CXD3540GB 1/3 +1.8VP VDDI-D4 VSS-A1 VDDI-D7 VSS-A2 CXD3540GB 2/3 R401 R431 HST_R VDDI-D8 VSS-A7 C401 C402 DRE9 R1IN9 R1OUT11 RD1-11 VST_R 10/6.3...
  • Page 65 CONFIDENTIAL R Panel Part for BiNA5 XGA from I802 from I801 controlled by POWER6 controlled by POWER7 70mA 80mA JUMPER R R534 I502 TC7SG125FU 1005 R544 C521 Q533 SHCLK_R IN_A 2SC5343UFG R543 R531 1005 10/16 OUT_Y MVK/SKV R545 R538 1005 1005 C522 GCFB_R...
  • Page 66 CONFIDENTIAL G Panel Part for BiNA5 XGA from I802 from I801 controlled by POWER6 controlled by POWER7 70mA 80mA JUMPER R R634 I602 TC7SG125FU 1005 R644 C621 Q633 SHCLK_G IN_A 2SC5343UFG R643 R631 1005 10/16 OUT_Y MVK/SKV R645 R638 1005 1005 C622 GCFB_G...
  • Page 67 CONFIDENTIAL B Panel Part for BiNA5 XGA from I801 from I802 controlled by POWER7 controlled by POWER6 70mA 80mA JUMPER R R734 I702 TC7SG125FU 1005 R744 C721 Q733 SHCLK_B IN_A 2SC5343UFG R743 R731 1005 10/16 OUT_Y MVK/SKV R745 1005 1005 R738 C722 GCFB_B...
  • Page 68 CONFIDENTIAL LV01 2518 JUMPER R GND1 RV48 RV49 DSUB1_B RV50 1005 DSUB1_G 1005 DSUB1_R 1005 DSUB1_H DSUB1_V RV54 75-1% 1 1005 QV09 RV47 RV46 2SC5343UFG GND1 1005 1005 CV33 RV42 RV61 QV04 10/6.3 2SA1980UFG 2125 1005 1005 QV12 QV13 QV14 RV52 SRC1202EF SRC1202EF...
  • Page 69 CONFIDENTIAL LS01 2518 RS05 RS06 1005 RS04 1005 GND1 1005 DSUB2_B DSUB2_G RS90 DSUB2_R APDG RS91 1005 QS02 SRC1202EF RS92 1005 ES01 1005 3114-15FA CS03 10/6.3 CS09 APCL 2125 IS02 EL8302IUZ-T7 RS34 1.0p-C 560-1% HS10 INA+ INA- 1005 SC200JT RS37 SYNC 1005 2125...
  • Page 70 CONFIDENTIAL RA40 POWER7 100 1 RA42 1005 POWER5 100 1 1005 IA03 MM1665AHBE CA36 Cont 470p 1005 NC-6 RA41 NC-7 NC-2 +5VAUDIO Vout 1005 IA01 +6.6V CA54 BD3870FS 0.33/10 VIN1 MPEG Audio R - in CA55 0.0022 PL_R_IN VIN2 TNF1 MPEG Audio L - in PL_L_IN CA56 0.0022...
  • Page 71 CONFIDENTIAL APRXJ EK51 APTXJ SH-04H RXD_CT TXD_CT RK35 QKA2 SRC1202EF AP5VJ 1005 RKA9 IK01 DS14C232CM 1005 RKA8 RKA6 XK25 1005 IKA1 IK21 GND1 6.00MH SN74LVC1G125DCK RRX6000-0702L CSTCR_G CK22 Dout1 1005 VSS1 /RST QKA3 1.0/6.3 SRC1202EF Rin1 1005 OSC1 PTA0 RKA7 Rout1 OSC2 PTA1...
  • Page 72 CONFIDENTIAL IP01 IP01 IP01 PERIPHERALS MD2408A MEMORY MD2408A DISPLAY MD2408A RP72 RP41 CHPPXE RP31 RP42 NPCS1 NWD_OVF CHPNWD PFCS MA14 MA14 PXOE PCLKO GCLK RP01 1005 1005 RP43 NPCS0 PFCS MA13 MA13 VBLK RP21 2010 RP44 1005 SPCK SDCS SDCS MA12 MA12 CHPIRF...
  • Page 73 CONFIDENTIAL SDCS SDCS SDCLK SDCLK DGMU DGMU DGML DGML MD10 MA10 PFCS MD10 MA10 PFCS MD11 MA11 MA15 MD11 MA11 MA15 MD12 MA12 MA16 MD12 MA12 MA16 MD13 MA13 MA17 MD13 MA13 MA17 MD14 MA14 MA18 MD14 MA14 MA18 MD15 MA15 MD15 MA15...
  • Page 74 MEMO...
  • Page 75 CPX1(M1-20) Basic circuit diagram list PWB assembly REMOTE PWB assembly MAIN 6 POWER UNIT BALLAST 1 PWB assembly MAIN 7 POWER UNIT BALLAST 2 PWB assembly MAIN 8 POWER UNIT CIRCUIT PWB assembly MAIN 9 PWB assembly MAIN 1 PWB assembly MAIN 10...
  • Page 76 CPX1 YK No.0576E QR69691 Printed in Japan (JE)

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