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ViewSonic PJ870 Service Manual
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ViewSonic PJ870 Service Manual

ViewSonic PJ870 Service Manual

Color super bright svga dmd lite bird - micro portable projector
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Service
Manual
ViewSonic
PJ870
Model
No.
VPROJ22344-1W
Color Super Bright
SVGA DMD
L 1 T E BIRD
TM- Micro
Portable
Projector
L / TEBIRD
ViewSonic
(PJ870_SM
155 - Rev. 1 - August 2000)
ViewSonic'
381 Brea Canyon Road, Walnut,
California
91789 USA - (800) 888-8583

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Summary of Contents for ViewSonic PJ870

  • Page 1 Service Manual ViewSonic PJ870 Model VPROJ22344-1W Color Super Bright SVGA DMD L 1 T E BIRD TM- Micro Portable Projector L / TEBIRD ViewSonic (PJ870_SM 155 - Rev. 1 - August 2000) ViewSonic' 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583...
  • Page 2 Further, ViewSonic reserves 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.
  • Page 3 4. DISASSEMBLY PROCEDURE 4-1 —4-10 BOARD ..5-1 -5-18 6. TROUBLESHOOTING FLOW CHART 6-1 -6-7 7. TEST ALIGNMENT PROCEDURE.. 8. DETAILED SPECIFICATION 8-1 -8-13 9. FIRMWARE UPGRADE PROCEDURE..„..„....10. APPENDIX - TOOLS, TEST EQUIPMENT, AND OPTIONS 10-1 PJ870 Service Manual...
  • Page 4 PJ870 PREFACE This manual is prepared for the maintenmce service for PJ870 DMD SVGA Projector. Maintenanceproceduresdescribed in this manual are intended to isolate faulty parts andreplace them in the field. It also aims to serveasa guide in procuring replacementparts for this product.
  • Page 5 PJ870 CHAPTER Introduction This manual is applied to PJ870 Ultraportable SVGADMD Projector with digital imaging functionality basedon Digital Micromirror Device (DMD) technologv. It's the mode of single panel and 800*600 resolution. Themanual gives you a brief description of basic technical information to help in service and maintaining theproduct.
  • Page 6 PJ870 1-1 Product Features One Panel 0.7" DMD Droiection systemwith 575 ANSI lumens, 85% uniformity 120WattCompactP-VIP Lamp (user replaceable) High efficiency cooling system with system acoustic noise level 43dBA (Normal Operation) Light weight less thm 5.0 lbs Fixed focus projection lens...
  • Page 7 PJ870 1-2 Technical Specification 3.5*8.6*9.9 inches Dimensions (W*H*D) Weight 5.0 lbs/ 2.3 kg Power Supply AC input 100-240V, AC 50/60Hz Video Compatibility Standards • NTSC M, 4.43 MHz SECAM Multimedia Audio One internal Speakerw / 3 watts output 180Watts at normal operation...
  • Page 8 PJ870 3.28ft. to 32.8ft. / 1.0m to 10m Projection Distance 85% by 9pt method Typical Uniformity FCCC1assA, CE Mark Class B, VCCI-I Safety/Regulation UL, CUL, TUV 16.7 Million colors (8 bits per color) Color Depth Throw Ratio 2.24 Inuge Size Range Projection Distance 0.6m...
  • Page 9 PJ870 CHAPTER Fundamental Principles This sectionprovides the whole structure and conceptual drawing about optics of the projector. Youcanrealize opticalprojection systemthroughthefollowing diagramandalso the integral part of configuration. [2-1] ViewSonic Corporation Confidential - Do Not Copy...
  • Page 10 PJ870 2-1 Optics 2-1.1 Conceptual Drawing Plastic (PMMA) Condenser Lens Projection Lens UV-1RFi1ter TIR Prism Module Hollow Integration Rod Plastic (PMMA) Relay Lens Color Wheel Enhance Mirror AR Coating Plate Enhance Mirror OSRAM Elliptical Reflector p-Vlp Larnp 120W [ 2-2 ]...
  • Page 11 PJ870 2-1.2 Basic Functions Projecting image on the screen Projection Lens Folding optical path. Enhance Mirror Elliptical Reflector The light source. p-\/lp Lamp 120W Plastic Condenser Condensing the light beam. Lens Making the light beam uniform. Hollow Integration Rod Filtering UV-1Rout.
  • Page 12 PJ870 2-2WholeSystem BlockDiagram Power System Optical System Main Board Module [ 2-4 ] ViewSonic Corporation Confidential - Do Not Copy...
  • Page 13 PJ870 2-2.1 Main Board Block Diagram SDAT Memory VGAIN R/G/B even GHS,GVS, GCLK, GSOG GFBK Image Processor GREF, GCOAST, IRDAT GHSFOUT, GBLKSPL GRSEL Video S-Video VVS, VI-IS, MCLK VPEN, Y, UV VCLK,EN CHROMA Reset LUMA COMP Decoder M.I.S. [ 2-5 ]...
  • Page 14 PJ870 2-2.2 DMD Module Block Diagram Voltage VBIAS, Enable VCC2,VOFFSET RESET, VOFFSET VBIAS,VRESET BIAS GENERATION RESET ASIC BIAS/RESET Control Config /Sequence PROM Control Data Control Data Path FPGA formatter Vsync Reset Data Data Micro SDRAM SDRAM Controller EEPROM Control Memory Control, Address...
  • Page 15 PJ870 2-2.3 Power System Block Diagram Lamp Module Stan-20KV Normal 80—120V +12V DC-DC Cooling 400Vdc L.P.S 100-240V Module System 50/60Hz [ 2-7 ] ViewSonic Corporation Confidential - 00 Not Copy...
  • Page 16 PJ870 CHAPTER Mechanical Construction This section provides the package and exploded overview and replaceable parts list for the DMD projector. Youcan place an order for correct parts in the recommendation parts list. [3-1 ] Confidential - Do Not Copy ViewSonic Corporation...
  • Page 17 PJ870 3-1 Package Overview [ 3-2 ] Confidential Do Not Copy ViewSonic Corporation...
  • Page 18 3-1.2 Replacement Parts List Description tent: Label Fragile 100*35mm 35.00005.001 35.82001.111 label Carton Warranty Card, US 36.00012.001 36.82002.011 User's Manual Multilingual PJ870 "View Sonic" 42.81505.041 Cable Power Cord AC CS 3P#18/SPT-2UNSHLDIOft Black (NA) 42.50209.011 Cable S-VHS 42.50705.001 Cable Mini Jack to Mini Jack 42.53001.051...
  • Page 19 PJ870 3-2 Explode Overview [34] • Do Not copy Confidential ViewSonic Corporation...
  • Page 20 PJ870 3-2.2 Replacement Parts List Description Label Spec 32*106mm 35.81406.001 35.81402.111 CNNT Lamp Cover 51.82004.111 Cable Ground 42.81402.001 51.81540.001 Tape 3M J350 17*60mm 51.81401.213 Left Cover Thermal Insulator-Left 51.81427.002 Rear Rubber Foot 52.81402.001 52.81406.001 Rubber Foot EXTN Clear 61.81403.001 Handle...
  • Page 21 PJ870 vP/N Description 23.81516.011 Plastic (PMMA) Relay for DLP 23.81718.001 Prism for 0.7" 23.81519.001 Color Wheel R143 G102 51.81518.002 Optical Engine Top Case 61.81503.102 Optical Engine Base optical UV-IR BIOCKER 23.81510.002 61.81511.001 Spring for Enhance Mirror 44*32mrn SUS301 0.25t 61.81526.001...
  • Page 22 PJ870 DéSeription lent 51.81432.001 Fan Insulator Pad-S Silicon 12*7*2tmm 61.82002.001 Wind Guider 0.6t Lamp Fan Holder Mg AZ91D 61.81409.003 Bracket for Condenser SUS 0.3t 61.82001.001 61.81412.001 Interrupter Safety Ring Elevator Spring Bracket 0.8t 61.81413.002 85.4A322.040 Screw Flat Mech M2*4 Screw...
  • Page 23 PJ870 _P/N Description tent 51.81415.001 Elevator Push Button 51.81416.111 Elevator Body Housing 51.81417.002 Elevator Bolt 51.81418.111 Elevator Foot 51.81419.001 Elevator Gear 51.81420.001 Elevator Holder 51.81421.111 Elevator Left Extension 51.81422.111 Elevator Right Extension 51.81423.111 Elevator Gear Cover 61.81411.001 Elevator spring SUS304 FO.5/OD6.1/L8.5 Elevator Extent spring SUS304 w0.5/OD4.5/L57...
  • Page 24 PJ870 Description tej?i New IR Lens PC Red 51.81430.001 Speaker Holder 61.81104.001 Nut Plate 61.81406.002 61.81408.001 Larnp ChangerBRKT-Right ASSY IR Receiver Module 76.81402.001 75.81403.001 ASSY Thermistor Module 85.1A126.040 Screw Pan Mech M2.6*4 23.81715.001 OSRAM Enhance Elliptical Reflector now UHP I-amp Label Caution Hight Voltage &...
  • Page 25 PJ870 3-3 Recommendation Spare Parts List DeSériptiot' tent ASSY Left Cover Module (Assernbly item 6—13) 70.82009.211 ASSY Optical Engine Module (Assembly item 14—25) 70.82010.211 PCBA Sensor Board 80.81503.001 70.81712.001 ASSY Module 80.82006.001 PCBA Main Board 70.82015.001 ASSY Ballast Module (Assembly item 77—92) 70.81406.211...
  • Page 26 The Procedure of Disassembly This section provides disassemblyprocedures for PJ870 0.7" DMD SVGA Color Projector. Beforeyou begin any ofthese procedures, be sure to turn off thepower, computer system,and other attached devices; then disconnect thepower cablefrom the electronically outlet. Moreover, when you disassembletheprojector, be sure to put the screws in a safeplace and separate them according to grouping.
  • Page 27 PJ870 Tools l. Philips Screw Drivers (Size : 101 & 107) 2. Hexagon Nut Spinner (Size : 5mm) 3. Nose pliers 4-1 Disassemble Lamp Module Lamp Module Connector Lamp Cover Unscrew one screw(85. IA 126.100 PanMech M2.6* 10) to take off Lamp Cover.
  • Page 28 PJ870 4-2 Disassemble Right Cover Right Cover Elevator 1 Module Push the blue button to spring out Elevator Module. Unscrew two screws(85. IA 126.060 PanMech M2.6*6) on the bottom andtwo screws (85. IA126.060 Pan Mech M2.6*6) on the rear side of Projector.
  • Page 29 PJ870 4-3 Disassemble DC-DC Power and Control Panel Module FPC Cable Keypad BD Left Cover Module DC-DC Power Unplug six cables on DC-DC Power. Unscrew two screws(85.IA 126.060 Pan Mech M2.6*6)(85.lA126.070 PanMech M2.6*7 ) on DC-DC Power. Pushandlift upDC-DC Powerto unplug onecableson thebottom of DC-DC Power.
  • Page 30 PJ870 4-4 Disassemble Electronic and AV Modules Electronic Module AV Module Left Cover Unscrew six screws(85.WA126.080 PanTap IA126.070 Pan Mech 2.6*7) (85.1A126.060PanMech 26.100PanMech M2.6* 10)on Left Cover. Unscrew threescrews(85. 127.060PanMech wrr IA 126.060 Pm Mech M2.6*6) on BallastModule to lift andtake off Electronic andAV Module.
  • Page 31 PJ870 Disassemble AV Module AV Connector Label AV Board e e 00 AV Cover Ground Cable 10 Box Tear off AV Connector Label, then unscrew two screws(85.YA323.060 Flat Tap M3*6) on AV Cover to remove 10 Box. Unscrew two screws(85.WA126.080 Pm Tap M2.6*8) on AV Board to remove it.
  • Page 32 PJ870 4-6 Disassemble Fan Module and Ballast Module Fan Module Left Cover OBallast Module Tearoff 3M Tape(51.81540.001 17*60mm), andunscrewtwo screws(85.IA 126.060 PanMech M2.6*6) on Left Cover to lift up Fan Module. Separate E xtentSpringandFanModule,andpull outtheconnector t o remove FanModule. Take off Ballast Module.
  • Page 33 PJ870 4-7 Disassemble Engine, Main BD and DMD BD Sensor Board Optical Engine O DMD Board Cable Main Board Bracket Remove Lens, andunplug FPC Cable from DMD Board. Unscrew two screws(85.0A523.050 Pan Mech M3*5) andone nut(86.0A126.060 Nut Hex M2.6*0.45P) on Main Boardanddisconnecttheconnectorto removeMain Board.
  • Page 34 PJ870 4-8 Disassemble Ballast Insulator & Trainsistor Clip Ballast Ballast BRKT Unscrew three screws(85.IA 126.060 PanMech M2.6*6) on Insulator & Trainsistor Clip, take off Insulator& Trainsistor Clip from Ballast. Unscrewtwo nuts(86.0A123.032K Nut M3*0.5P) to separateBallastfrom Ballast Bracket. [ 4-9 ]...
  • Page 35 PJ870 4-9 Disassemble Elevator and Handle Handle Handle Holder BRKT trapezoid E Elevator E Extent Spring Left Cover Elevator Module Unscrewone screw(85.IA 126.040PanMech M2.6*4) to separateHandleHolder Bracket and handle from Left Cover. Take off Elevator Extent Spring from Elevator Module.
  • Page 36 PJ870 CHAPTER Function of Boards This section provides each connector location on boards, signal cmdfunction of each board. They will be useful for your detecting the defective boards. [ 5-1 ] Do Not Copy Confidential ViewSonic Corporation...
  • Page 37 PJ870 5-1 Main Board (Side A) 5-1.1 The Location of Connector 5-1.2 JP7 : Keypad Connector Pin# Signal Name Function +3.3 V 3.3V IRDAT IR Data Indication LED Indication Indication Indication Indication LED Indication Ground Keypad Control Key 4 Key 5...
  • Page 38 PJ870 5-1.3 JPI : Digital Input Connector Pin# Ygnal Ngme, Function. Audio L Input Audio R Irvut Audio L Extension AL EXT Audio R Extension Audio L Extension AL EXTB Audio R Extension EXTB Ground CONT Composit Signal CHROMA Chrominance Signal Luminance Signal 5-1.4...
  • Page 39 PJ870 5-2 Main Board (Side B) 5-2.1 The Location of Connector 5-2.2 JP6 : DMD Module Connector Signal Name Pin# Function Ground Ground Ground +3.3M +3.3 V Ground +3.3 +3.3 V Ground +3.3V1 +3.3V Ground +3.3 V Ground +3.3 VI +3.3 V...
  • Page 40 Ground Blue Data Ground Blue Data Ground Red Data Ground Red Data Groumd Red Data Ground Red Data Ground Green Data Ground Green Data Ground Green Data Ground Green Data Ground [ 5-5 ] ViewSonic Corporation Do Not Copy Confidential...
  • Page 41 Ground Lamp Enable LAMPSYNC Lamp Lit LAMPLIT N.C. No Connection +3.3V +3.3 v Ground HSYNCOZ Horizontal SYNC Ground Main Channel (DPF2) OLACT Ground Blue Data Ground Blue Data Ground Blue Data [ 5-6 ] ViewSonic Corporation Confidential Do Not Copy...
  • Page 42 PJ870 SignalName Pin# Function Ground Blue Data Ground Red Data Ground Red Data Ground Red Data Ground Red Data Ground Ground Ground Green Data Ground Green Data Ground Green Data Ground Green Data [ 5-7 ] Do Not Copy Confidential...
  • Page 43 PJ870 5-3 DMD Board (Side A) 5-3.1 TheLocation of Connector J501 J502 5-3.2 J502 : Color Wheel Connector Pin# Signal Name Function Color Wheel Motor Drive Signal CW Yl Color Wheel Motor Drive Signal Color Wheel Motor Drive Signal Color Wheel Motor Drive Signal...
  • Page 44 PJ870 5-3.3 J501 : DC-DC to DMD Formatter Board Connector SignalName Function AVDD Ground P12V Ground Ground P3P3V +3.3 V Ground AVDD 4-5V Ground P3P3V +3.3 V Ground PWRGOOD Power Good J3_NC No Connection CWINDEX Color Wheel Index Lanv Enable...
  • Page 45 PJ870 5-4 DMD Board (Side B) 5-4.1 The Location of Connector 5-4.2 Jl : DMD Module Connector Signal Name Pin# Function A_GND Grotmcl AVDD A_GND Ground AVDD Ground +3.3V Ground +3.3 V P3P3V Ground P3P3V +3.3 V Ground +3.3 V Ground +3.3 V...
  • Page 46 Ground Blue Data Ground Blue Data Ground Blue Data Ground Data Ground Data Grounxl Data Ground Red Data Ground Green Data Ground Green Data Ground Green Data Ground Green Data Ground [ 5-11 ] Do Not Copy Confidential ViewSonic Corporation...
  • Page 47 Lamp Sync Lamp Lit LANLPLIT LAMPEN Lamp Enable SYNCVALID Data Control (FPGA) Ground Horizontal SYNC HSYNCZ Ground OLACT Main Channel (DPF2) Ground Blue Data Ground Blue Data Ground Blue Data [ 5-12 ] Confidential - Do Not Copy ViewSonic Corporation...
  • Page 48 PJ870 Pin#r SigvalNgnge •Function Ground Blue Data Ground Red Data Ground Red Data Ground Red Data Ground Red Data Ground Ground Ground Green Data Ground Green Data Ground Green Data Ground Green Data [ 5-13 ] Confidential Do Not Copy...
  • Page 49 PJ870 5-5 DC-DC Converter 5-5.1 The Location of Connector DC-DC to DMD Formatter Board Connector AC-DC output to DC-DC input CN6, CNI Connector 5-5.2 DC-DC to DMD Formatter Board Connector Signal Name Function Pin# +5V, Analog Ground GND2 (5V analog)
  • Page 50 PJ870 5-5.3 : Fan Connector Pinw Signgl Name- •Ftmctton +12V, Fan +12 V Ground 5-5.4 : Fan Connector Function Pin} Signal +12V, Fan +12V Ground 5-5.5 : Thermal Connector -Functiöh .Pin# Signal Name Thermostat Pinl Thermal Status Thermostat Pin2 Ground (GND) 5-5.6...
  • Page 51 PJ870 5-5.8 CNI : Lamp Power Connector Signå! Name Function Enable/Sync Enable Ground Lamp Lit Lanv Lit 5-5.9 AC-DC output to DC-DC input Connector 'Signal Namec Function +400 VDC Return 5-5.10 CN9 : Thermistor Connector Function Pinw Signal Nanie Thermal...
  • Page 52 PJ870 5-6 Key Pad Board 5-6.1 The Location of Connector 5-6.2 JPI : Keypad Connector Signal Name Function Pin# 3.3V +3.3V IRDAT IR Data Indication Indication Indication Indication Indication Indication Ground Read Key Read Key Read Key Ground Read Key...
  • Page 53 PJ870 5-7 AV Board 5-7.1 The Location of Connector 5-7.2 JPI : Digital Input Connector Signal Name Function Pin# Audio L Input Audio R Input Audio L Extension AL EXT AR EXT Audio R Extension AL EXTB Audio L Extension...
  • Page 54 PJ870 CHAPTER Troubleshooting This chapter provides technicians and people who have an electronic background a primary description about maintaining theproduct. Moreover,you canget the appropriate operation to solve some complicated problems of component repairing and professional problems. [6-1] Do Not Copy...
  • Page 55 PJ870 6-1 Equipment Needed PJ870 VGA Cable, Power Cord PC (Personal Computer) Audio Input, Video Input Screw Driver 6-2 Main Procedure Start Connect Power cord, VGA cable and audio signal, then turn power on A. Power Is Lamp light on ? Troubleshooting B.
  • Page 56 PJ870 D. Audio Is Audio Troubleshooting Is Remote E. Remote Control Control Troubleshooting Found [ 6-3 ] Do Not Copy Confidential ViewSonic Corporation...
  • Page 57 PJ870 6-2.1 A. Power Troubleshooting Start Check Reassembly Is LED power cord assembly indicator lamp & input power voltage Chmge Supply DC-DC AC power Chmge Chmge Lamp Change Change Ballast ChangeBallast Main Board [ 6-4 ] Do Not Copy Confidential...
  • Page 58 PJ870 6-2.2 B. Performance Troubleshooting Start Change Change Have image ? Module Change Chmge Have garbage Module pattern ? Chmge Uniformity 0K ? Engine Module Change Color Adjust Change Optical Is color Procedure Engine Module * Note 1 Change Have...
  • Page 59 PJ870 Color Adjust Procedure : Notice : PC shall run R.G.B. gray scale pattern (3: 169 pattern) of DMU Program. 1. Pressmenubutton andpower on simultaneously.Hold menubutton until View Sonic logo is showed on the screen. 2. Press menu button again and OSD will appear on the screen.
  • Page 60 PJ870 6-2.4 D. Audio Troubleshooting Start Change Chmge Can hear Main board Speaker sound Sound is clear Change without noise ? Speaker 6-2.5 E. Remote Control Troubleshooting Start Replace the battery Change Remote Controller ChangeKeypad ChangeM/B [ 6-7 ] ViewSonic...
  • Page 61 PJ870 CHAVI'ER Specifica tions This chcpterprovides Panel, Lamp and DC-DC Power specifications. All specifications are for your reference. [7-1] ViewSonic Corporation Confidential Do Not copy...
  • Page 62 PJ870 7-1 DMD Specification Table1. Physical and Optical Performance Parameters Total height (mirror array) 10.20 Total width (mirror array) 14.42 Pixel pitch Differential (device to device) in mirror Note position relative to mirror position (0,0) Mirror tilt (half angle) degrees...
  • Page 63 PJ870 UNIT PARAMETER Remar Window surfacequality (inside only) Note Opaque particle diameter (inside window Note surface only) Distancebetween aperturedwindow and Note 0.76 active area Window aperture total reflectivity Note Reflective type 10, 11 Absorptivetype Active area absorption coefficient Note Thermal impedance, active area to case...
  • Page 64 PJ870 Note 2 : Tilt Angle Tolerance Limits on variability of mirror tilt half angle are critical in the design of the accompanying optical system Variationsin tilt anglewithin a device may result in aparentnon-uniformities, suchas line pairing andimagemottling, acrosstheprojected image.Variations in theaveragetilt angle between devicesmay result in colorimetry problems anda reduction in systemcontrast.The specified...
  • Page 65 PJ870 thewarrantyperiod. The required state(light, dark, or non-saturated), r estrictions on location within thearray, andmaximumcountof non-functionalmirrors are defined only for particular systems,and may be found in the applicable image quality specification. The non-functional mirror defect growth rate shall not exceed 1 per year. The degree of saturation ofnon-saturated non-functional mirror defects depend both on the particular defect and the systemconfiguration.
  • Page 66 Table 1. Optical systems should be designed so that no significant light energy falls outside the window clear apertureasshown in Figure 9, as anysignificant additional thermal load on the casetop can damagethe device. [ 7-6 ] Confidential Do Not Copy ViewSonic Corporation...
  • Page 67 PJ870 Table 2. Standard Illumination Conditions INPUr CONDITION ourpur CONDITION NOTES PARAMETER NA=nSINU Beam nurnerical aperture 0.167 (f/3.0) 0.167 (f/3.0) n = 1 (air) (NA) U=9.60 Beam chief ray angle off Relative to system interface 200 ± 0.250 00 ± 0.250...
  • Page 68 PJ870 7-2 Lamp and Lamp Driver Specification O Lamp Driver Data Input M)ltage, nominal 1OOVto 240V AC, 50/60Hz Input Current, nominal 1.7A-O.7A Input Wattage, nominal 180W Power Dissipation 30W max. Output M)ltage 1 (Lamp) 85V AC rectangular Output Current 1...
  • Page 69 PJ870 O AverageLamp Life and Lumen Maintenance Switching Cycle 3.5hrs on 0.5hrs Lamp Lift Time 6 months from date of production documented by nr)nthly production code Lamp Life Lampoutput >50% of initial lumenoutput Rise Time Rise time to 80% of the stabilized luminous output is <90 sec without forced convection.
  • Page 70 PJ870 O Environmental Requirements of Lamp and Driver in Projection System Ambient Temperature Operating : 1 OOC to 400C Non-operating : -200C to 700c Humidity Operating • 5% to 95% relative non-condensing Non-operating . 5% to 95% relative non-condensing Altitude Operating •...
  • Page 71 PJ870 7-3 DC-DC Power Specification 7-3.1 DC-DC Power Requirements Description Requirement COmment General Effciency, Overall, Min. Input voltage is 392Vdc with max. load For each individual DC output voltage Load, Nominal of Max. DC-DC output voltage shall meet all Load Variation, Max.
  • Page 72 PJ870 Description Comment Requirement Crcuitry detectskey parameters(suchas AC line conditions, DC voltages, ...) to determine stable operation andprovides commandto projector Power electronics enabling normal operation. When power good goes false, the projector electronics will initiate orderly shut-down of key circuitry.
  • Page 73 When the standby signal goes to logic high, the fan voltage is 9.8V min. which the room temperature is 250C or 11.5V- 12.5Vwhich the room temperature is greater than 310C- 330C. When the standby signal goes to logic low, thefan voltage is 7.5V- 8.5V. [ 7-13 ] Do Not Copy ViewSonic Corporation Confidential...
  • Page 74 PJ870 7-3.4 Environmental Requirement OperatingMode Specifications RemarkS Tenperature For ambient environment. Operating : OOC to 450c For ambient environnent. Storage (Non-operating) -300C to 650c Humidity 5% to 95% Relative Operating . Ambient environment. humidity, Non-condensing 5% to 95% Relative Ambient environment.
  • Page 75 O Circumstance Brightness : Darkroom less than 60 lux O Inspection Distance : 2.0m O Screen Size : 60 inches diagonal (wide) O Before fmction test and alignment, each PJ870 should be run-in and warmed-up for at least 30mins with following conditions. In room temperature...
  • Page 76 PJ870 8-3 Test Display Modes and Patterns 8-3.1 Compatible Modes Y.greQueney V,frequency (Hi Resolut10iv (KHz) 640*350 31.5 640*350 37.9 31.5 640*400 37.9 720*400 31.5 VGA (Expanded) 720*400 37.9 31.5 640*480 37.9 640*480 37.5 640*480 43.3 800*600 35.1 800*600 37.9 SVGA (Native) 800*600 48.1...
  • Page 77 Boundary Frame Boundary adjustable to be within the screenframe. Contrast & Brightness (Figure 2) Fine Line Morie Pattern (Figure l) G. Color Pattern (Figure 4) R. Color Pattern (Figure 3) [ 8-3 ] Confidential - Do Not Copy ViewSonic Corporation...
  • Page 78 PJ870 Full White Pattern (Figure 6) B. Color Pattern (Figure 5) Gary 30 Pattern (Figure 8) Dark Pattern (Figure 7) Boundary Frame (Figure 10) Blue 180 Pattern (Figure 9) [ 8-4 ] - Do Not Copy Confidential ViewSonic Corporation...
  • Page 79 Incline 300to the left and right to check whether there is strange noise. 3) Function TestI : (a). Connect PC, Video, S-V1deo, Audio signal and extension speaker with PJ870. Press source button to switch to PC signal. (b). Make sure the image is normal.
  • Page 80 PJ870 Boundary Frame Pattern : - Make sure the boundary can be displayed. Press Menu button to enter Display Function OSD • - Make sure Keystone fmction works properly. Press Menu button to enter Image function - To select Auto image ON and make sure there is no noise occurring.
  • Page 81 PJ870 CHAVIIER Firmware Upgrade Procedure This Chapter provides the equipment needed,setup and upgrading procedure for Firmware upgrade. [9-1 ] ViewSonic Corporation Confidential - Do Not Copy...
  • Page 82 Pj870.inf 9-2 Setup Procedure Connect COMI of PC and Flash Board with RS232 cable. Connect Power Adapter to Flash Board. Connect Flash Board to the Projector (PJ870). COMI PJ870 RS232 Cable Power Adapter [ 9-2 ] ViewSonic Corporation Do Not Copy...
  • Page 83 PJ870 9-3 Upgrade Procedure Execute <Flashupgrader.exe> program. rncp y-nn Co.mc.q DDC by b E-i*x•• Click "Next" icon. Wizud wili th#ttontain pixelworks •tie 9 *let LbPIÅt [ 9-3 ] Do Not Copy Confidential ViewSonic Corporation...
  • Page 84 PJ870 Click "Browse" icon to choosethepath of<Pj870.inf>, thenclick ' 'Next" icon. PW364 Fimv.,ue Wizard Seléctthe,nevgfirmvasefile that y ouwould téiins•ta.llin yoyr h ardW@iÉ waxe Note: Chec WI yer$onof Ciickl'ten. Select the serial port which the device is connected to, then click "Next" icon.
  • Page 85 Plug in power cord and then power on the projector. It'll take several seconds to complete Firmware upgrading. Click "Finish" icon to complete the operation. PW3ö4 Frmwue Upgøde it'hzud int&d. å•nevfi.ljnwue in die [ 9-5 ] Confidential - Do Not Copy ViewSonic Corporation...
  • Page 86 YY = Last two digits of manufacturing year (ex: 1922 - 99, 2000 - 00) WW = Manufacturing week xxxxx = Sequencenumber B09004100012 This label "B09004100012" represents the whole serial number for PJ870. It's produced on 41-week of 2000 and its sequence number is 00012. [10-1] Do Not Copy...
  • Page 87 Sep. = 1 -9, Oct. -Dec. = X, Y, Z) A1 -Version (A1 -AZ, Serial code (from 0001æ) EX : LUOM08D10039 The label of"LUOM08D10039" represents the version m ofMain Board for PJ870. It's produced on August, 2000 and its serial code is 0039. LUOM08D10039 25mm* 14mm...
  • Page 88 PJ870 10-2 Equipment Illustration From top to bottom l. Philips Screw Drivers (Size ; 107 & 101) 2, Hexagon Nut Spinner (Size : 5mm) 3, Nose pliers VGACable PJ890 [ 10-3 | ViewSonic Corporation Do Not Copy Confidential...
  • Page 89 PJ870 Power Cord PC (Personal Computer) VCR with Multi-systcm (NTSC/PAL/SECAM) Hi-Pot Flash Board Chroma meter Minolta CL- 100 Confidential Do Not Copy ViewSonic Corporation...
  • Page 90 PJ870 RS232 cable Power A dapter with Power Curd Confidential Do Not Copy ViewSonic Corporation...

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