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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.

(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. And then dis-

connect cable and unscrew the earthing wire.

PWB assembly MAIN

3 screws

FRONT

Disconnect the cable

earthing wire

PWB assembly MAIN

REAR

Lift up

Unscrew the earthing wire

3. Removes POWER BOARD(CIRCUIT)

(1) Unscrew 3 screws, and then get the BALLAST-BRACKET off.

Screw

Lamp lead

Disconnect the lamp lead, and the cable CN1 from the POWER UNIT(ballast).

ViewSonic

Corporation

nfidential

Not

Copy

PJ400-1

Содержание PJ400-1

Страница 1: ...Service Manual ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 Multimedia LCD Projector ViewSonic PJ400 1 Model No VS10459 PJ400 1_SM Rev 1b Jun 2006...

Страница 2: ...es the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or changes Trademarks ViewSon...

Страница 3: ...py 3 Name of Each Part 4 Adjustment 5 Troubleshooting 6 Service Points 7 Wiring Diagram 8 Disassembly Diagram 10 RS 232C Commands 11 Block Diagram 12 Connector Connection Diagram 2 Features and Specif...

Страница 4: ...tage circuit for the lamp Do not touch any electric part or component after the projector has been turned on and is operating Doing so could induce a severe shock causing injury or death 5 Do not touc...

Страница 5: ...p NTSC burst signal 75 termination 0 3 0 1Vp p PAL SECAM burst signal 75 termination AUDIO IN 200mVrms 47k or more max 3 0Vp p Speaker output 1W mono Power supply AC100 120V 2 7A AC220 240V 1 5A Powe...

Страница 6: ...below Vent Ports AUDIO port Restart switch RGB port Kensington lock slot NOTE About Restart switch This Projector is controlled by an internal microprocessor Under certain exceptional circumstances th...

Страница 7: ...utton Cursor buttons STANDBY ON button Controls Remote control SEARCH button RGB button VIDEO button ASPECT button MAGNIFY ON button OFF button FREEZE button POSITION button ESC button STANDBY ON butt...

Страница 8: ...e Advance menu to set to DEFAULT1 Note that PICTURE menu is not selectable with no signal input displayed 5 Select PICTURE COLOR TEMP CUSTOM in the Advance menu then press or ENTER button to display t...

Страница 9: ...ernal adjustment Adjustment procedure 1 Open FACTORY MENU and then select 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 sa...

Страница 10: ...we want to keep the best contrast ratio 5 Then adjust colors R and B 6 Select GAMMA SUB CNT and G in the FACTORY MENU If the background is white solid press the ENTER key on the Remote control trasmi...

Страница 11: ...m the low numbers 5 Adjustment point No 1 should not be adjusted because it controls the brightness of the entire screen 6 To temporarily turn correction off place the cursor on C UNIF in the Adjust T...

Страница 12: ...as follows x x1 0 005 y y1 0 010 9 Similarly measure adjustment points No 3 to No 17 and adjust their color coordinates start ing in order from the small number points This completes adjustments requ...

Страница 13: ...Next view measurement points No 4 No 5 No 12 No 13 and make similar adjustments 8 Then adjust measurement points No 6 No 7 No 8 No 9 No 14 No 15 No 16 and No 17 This completes the MIN tone adjustment...

Страница 14: ...E801 E804 E301 E802 D303 LAMP D302 TEMP D301 Power P501 P701 P601 E806 E302 E807 E805 PWB assembly MAIN PWB assembly REMOTE Top view of the projector after the silver gilding on the lamp house detach...

Страница 15: ...SW short or open PWB assembly Main Short TSW Open What is the state of TEMP indicator D302 Not light Blinks Jump to on the page 13 What is the state of LAMP indicator D303 Not light Blinks Short 0 Unp...

Страница 16: ...st H 3 3V L 0V L 0V L 0V Is the voltage at the 1 of E804 on the PWB assembly MAIN fixed to L during warming up L 0V Measure voltage at pin 1 of E801 on PWB assembly MAIN DC FAN B Panel Measure voltage...

Страница 17: ...5 7 of E800 on the PWB assembly MAIN 1 13 2V 3 17V 5 6 6V 7 4 1V Power unit circuit NO YES Are voltage input at pins 1 3 5 7 of E800 on the PWB assembly MAIN 1 13 2V 3 17V 5 6 6V 7 4 1V PWB assembly...

Страница 18: ...3 crossed YES Power unit circuit Check the power supply voltage of E800 the voltage correct 1 13 2V 3 17V 5 6 6V 7 4 1V Speaker No sound NO YES Power unit CIRCUIT Are voltage input at pin 1 3 5 7 of...

Страница 19: ...d free solder has been completely melted do not apply the soldering iron without solder Servicing soldering iron A soldering iron with a temperature setting capability temperature control function is...

Страница 20: ...on 1 Swab for cleaning P NX08061 Cotton stick L147 2 Air duster Dust blower spray can 3 Vacuum cleaner 2 Disassemble and open the maintenance hole 1 Turn off the projector and unplug the power cord 2...

Страница 21: ...ile removing the dust separated dust will be blown off by air cooling system Please pay attention not to damage panel and filter 5 Re assembly 1 Turn off the set and remove the PWB assembly MAIN 2 Set...

Страница 22: ...e power cord 2 Remove the lamp door and the lamp assembly according to the description of chapter Replacing the LAMP 3 Maintenance point 4 Cleaning the multilens 1 By using the air duster remove the d...

Страница 23: ...e a leakage of a battery wipe out the flower and then replace a battery If the flower adheres your body or clothes rinse well with water immediately Obey the local laws on disposing a battery To use t...

Страница 24: ...turned off for malfunction prevention 1 Disconnect all the connectors and adapters that were connected to the projector s ports Then slowly turn the projector so that the lens side is facing up Please...

Страница 25: ...ce menu 3 Press and hold RESET button of the remote control or button of the keypad for 3 seconds FILTER TIME reset window will appear 4 Choose RESET using button NOTE Incorrectly resetting of the lte...

Страница 26: ...h Before replacing the lamp turn the projector off and unplug the power cord then wait at least 45 minutes for the lamp to cool suf ciently Handling the lamp while hot can cause burns as well as damag...

Страница 27: ...loosened in the previous process to lock it in place 7 Interlocking the 2 tabs of the lamp cover to the pro jector position the lamp cover on the projector and push the center point of two claws to fi...

Страница 28: ...e use of the projector it needs to clean and inspect the projector about once every 2 years Caring for the lens If the lens is flawed soiled or fogged it could cause deterioration of display quality P...

Страница 29: ...AUTO function should be used with the full size picture that has bright tone on its peripheral Note 1 The phenomenon at the failure of AUTO adjustment depends on resolution of input source scene of pi...

Страница 30: ...elength of the inputted signal is outside of the response parameters of this unit Please con rm the specs for this unit or the signal source specs CHECK THE AIR FLOW The internal portion temperature i...

Страница 31: ...Blinking In Red The cooling fan is not operating Please turn the power off and allow the unit to cool down at least 20 minutes After the projector has suf ciently cooled down please make con rmation t...

Страница 32: ...r 10 seconds or change of input signal To end immediately use one of buttons except buttons Set operating time display method accumulated lamp time display method 1 Select OPTION from the Advance menu...

Страница 33: ...Affix the fan and attach black tape Fix two screws in the locations indicated on the diagram and insert washers underneath the screws Affix the lamp and attach the lamp cover Secure the lamp cover an...

Страница 34: ...icated on the diagram Attach the black mylar to the location indicated in the diagram Pass the wire through the slot in the lamp board as indicated in the diagram Place the slot of the lamp board onto...

Страница 35: ...t in the location indicated on the diagram with one screw Insert the three wires into the upper portion of the MAIN board PWB assembly MAIN 6 0 8 E 5 0 8 E 1 0 8 E 1 0 3 E 4 0 8 E 7 0 8 E 2 0 8 E 2 0...

Страница 36: ...tach black tape to the black earthing wire See the location indicated on the diagram Affix mylar and secure it in place with one screw in the location indicated on the diagram ViewSonic Corporation Co...

Страница 37: ...8 Disassembly diagram ViewSonic Corporation Confidential Do Not Copy 34 PJ400 1...

Страница 38: ...ViewSonic Corporation Confidential Do Not Copy 35 PJ400 1...

Страница 39: ...ISTOR A THERMISTOR B PWB ASS Y MAIN PWB ASS Y REMOTE PWB ASS Y SW CPC30 CONNECTOR POWER UNIT BALLAST POWER UNIT CIRCUIT FUSE 24 25 26 27 28 GK01341 DT00702 UX23741 KS09041 FH00311 QT46021 QD39921 HL02...

Страница 40: ...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...

Страница 41: ...the outside so that the terminals of MAIN board may not be caught in bottom case And then dis connect cable and unscrew the earthing wire PWB assembly MAIN 3 screws FRONT Disconnect the cable earthin...

Страница 42: ...sing the sub board to prevent the stress on the sub board Power Unit BALLAST CNBAR 2 Take the Power Sheet off and then unscrew a screw with a plastic washer Screw POWER UNIT CIRCUIT Power Sheet In rem...

Страница 43: ...T 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 re and or an electric shock Attaching the...

Страница 44: ...T ASSY Please remove three rivets and take the PANEL DUCT ASSY off ATTENTION Don t break two hooks on the PANEL DUCT ASSY Please remove four screws and four squere nuts and take the LENS ASS Y off DIC...

Страница 45: ...with other parts Please attach PANEL COVER Please remove three screws M2x8 Please remove damaged LCD PRSM ASSY from OPT BTTM CASE vertically to avoid the possibility that the positioning boss cracks...

Страница 46: ...6780 MJ02872 0 25 AIR FILTER S ASSY M 00001281 NJ20922 0 26 COTTON STICK L147 M MS 0808 6823 NX08061 0 DC FAN LAMP Update Description DC FAN BM4515 2006 5 31 DC FAN PANEL B Update Description DC FAN...

Страница 47: ...d after the computer has started up turn on the projector power supply Communications setting 19200 bps 8N1 1 Protocol Consist of header 7 bytes Command data 6 bytes 2 Header BE EF 03 06 00 CRC_low CR...

Страница 48: ...he decrement code Header Command data 05H 00H type 2 bytes 00H 00H to the projector 2 The projector decreases the setting value on the above setting code 3 The projector returns the response code 06H...

Страница 49: ...00 00 70 00 00 CONTRAST Get BE EF 03 06 00 FD D3 02 00 04 20 00 00 Increment BE EF 03 06 00 9B D3 04 00 04 20 00 00 Decrement BE EF 03 06 00 4A D2 05 00 04 20 00 00 CONTRAST Reset Execute BE EF 03 06...

Страница 50: ...04 00 96 30 00 00 Decrement BE EF 03 06 00 37 FF 05 00 96 30 00 00 User Gamma Point 8 Get BE EF 03 06 00 7C FF 02 00 97 30 00 00 Increment BE EF 03 06 00 1A FF 04 00 97 30 00 00 Decrement BE EF 03 06...

Страница 51: ...0 01 22 00 00 Decrement BE EF 03 06 00 46 73 05 00 01 22 00 00 SHARPNESS Reset Execute BE EF 03 06 00 C4 D0 06 00 09 70 00 00 PROGRESSIVE Set TURN OFF BE EF 03 06 00 4A 72 01 00 07 22 00 00 TV BE EF 0...

Страница 52: ...0 02 21 00 00 Increment BE EF 03 06 00 D3 82 04 00 02 21 00 00 Decrement BE EF 03 06 00 02 83 05 00 02 21 00 00 H SIZE Reset Execute BE EF 03 06 00 68 D2 06 00 04 70 00 00 AUTO ADJUST Execute BE EF 03...

Страница 53: ...URN OFF BE EF 03 06 00 46 D3 01 00 02 20 00 00 TURN ON BE EF 03 06 00 D6 D2 01 00 02 20 01 00 Get BE EF 03 06 00 75 D3 02 00 02 20 00 00 LANGUAGE Set ENGLISH BE EF 03 06 00 F7 D3 01 00 05 30 00 00 FRA...

Страница 54: ...et BE EF 03 06 00 38 D2 02 00 04 30 00 00 My Screen LOCK Set TURN OFF BE EF 03 06 00 3B EF 01 00 C0 30 00 00 TURN ON BE EF 03 06 00 AB EE 01 00 C0 30 01 00 Get BE EF 03 06 00 08 EF 02 00 C0 30 00 00 M...

Страница 55: ...mp 128K EEPROM A D Video dec PW2200B DDC S Video TEMP SENSOR CONTROL PANEL X tal MCLK 132MHz X tal DCLK 49 5MHz S P COLOR UNIFORMITY TIMING GENERATOR GAMMA CORRECTION L3E07070 REMC PWB IR RECEIVER S H...

Страница 56: ...12 Connector connection diagram ViewSonic Corporation Confidential Do Not Copy Connector connection diagram 53 PJ400 1...

Страница 57: ...13 Basic circuit diagram Parts with hatching are not mounted ViewSonic Corporation Confidential Do Not Copy PWB assembly REMC 54 PWB assembly SW PJ400 1...

Страница 58: ...MAIN 1 PWB assembly MAIN 2 PWB assembly MAIN 3 PWB assembly MAIN 4 PWB assembly MAIN 5 PWB assembly MAIN 6 PWB assembly MAIN 7 PWB assembly MAIN 8 PWB assembly MAIN 9 PWB assembly MAIN 10 PWB assembl...

Страница 59: ...D E F G 5 4 3 2 1 6 6 5 4 3 2 1 For handling of the circuit diagram refer to the warning on the cover Warning 4parallel x 3series ViewSonic Corporation Confidential Do Not Copy 56 POWER UNIT BALLAST P...

Страница 60: ...1 2 3 4 5 6 6 1 2 3 4 5 D G F E C B A ViewSonic Corporation Confidential Do Not Copy 57 POWER UNIT CIRCUIT PJ400 1...

Страница 61: ...1 2 3 4 5 6 6 1 2 3 4 5 D G F E C B A ViewSonic Corporation Confidential Do Not Copy 58 PWB assembly MAIN 1 PJ400 1...

Страница 62: ...1 2 3 4 5 6 6 1 2 3 4 5 D G F E C B A ViewSonic Corporation Confidential Do Not Copy 59 PWB assembly MAIN 2 PJ400 1...

Страница 63: ...1 2 3 4 5 6 6 1 2 3 4 5 D G F E C B A ViewSonic Corporation Confidential Do Not Copy 60 PWB assembly MAIN 3 PJ400 1...

Страница 64: ...1 2 3 4 5 6 6 1 2 3 4 5 D G F E C B A PWB assembly MAIN 4 C12S ViewSonic Corporation Confidential Do Not Copy 61 PJ400 1...

Страница 65: ...1 2 3 4 5 6 6 1 2 3 4 5 D G F E C B A PWB assembly MAIN 5 View Sonic Corporation Confidential Do Not Copy PJ400 1 62...

Страница 66: ...1 2 3 4 5 6 6 1 2 3 4 5 D G F E C B A PWB assembly MAIN 6 C12S ViewSonic Corporation Confidential Do Not Copy 63 PJ400 1...

Страница 67: ...1 2 3 4 5 6 6 1 2 3 4 5 D G F E C B A ViewSonic Corporation Confidential Do Not Copy 64 PWB assembly MAIN 7 PJ400 1...

Страница 68: ...1 2 3 4 5 6 6 1 2 3 4 5 D G F E C B A ViewSonic Corporation Confidential Do Not Copy 65 PWB assembly MAIN 8 PJ400 1...

Страница 69: ...1 2 3 4 5 6 6 1 2 3 4 5 D G F E C B A PWB assembly MAIN 9 C12S ViewSonic Corporation Confidential Do Not Copy 66 PJ400 1...

Страница 70: ...1 2 3 4 5 6 6 1 2 3 4 5 D G F E C B A ViewSonic Corporation Confidential Do Not Copy 67 PWB assembly MAIN 10 PJ400 1...

Страница 71: ...1 2 3 4 5 6 6 1 2 3 4 5 D G F E C B A ViewSonic Corporation Confidential Do Not Copy 68 PWB assembly MAIN 11 PJ400 1...

Страница 72: ...r Quality Systems Processes marc maupin viewsonic com d o o G t n e l l e c x E Precautions and Safety Notices 1 5 4 3 9 Block Diagram Service Manual Content Service Manual Layout The form and listing...

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