Optoma EP680 Service Manual Download Page 34

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Service Manual

4-8

1. Disconnect the connector CN3 cable and EMI cable; unscrew 2 screws on the

Switch board and remove it.

2. Unscrew 3 screws on the Metal connector bracket and remove it.

3. Unscrew 4 screws on the

Fan module

and remove it.

4.7 The disassembly of lamp fan module, switch board and metal

plate

Summary of Contents for EP680

Page 1: ...X Opto is a specialist in the LCD Projection field Your customer will appreciate the quick response time when you immediately identify problems that you occur with our products We expect your customer...

Page 2: ...icon TFT LCDs projection system q 1024 768 addressable pixels q Compression for 1280 1024 SXGA computer image q 16 7M displayable colors q SXGA XGA SVGA VGA VESA Mac NEC PC 98 Fujitsu FM Towns compati...

Page 3: ...ckering adjust by using TRACK and CON BRI function q The Remote Control unit uses two AA alkaline batteries q No image appears on the screen check the following Press the POWER STANDBY button and ensu...

Page 4: ...compatibility IBM VESAVGA 640 350 70 85Hz 640 400 70 85Hz 720 400 70 85Hz 640 480 60 72 75 85Hz VESASVGA 800 600 56 60 72 75 85Hz VESAXGA 1024 768 60 70 75 85Hz XGA 1280 1024 compression 60 72 75Hz Ap...

Page 5: ...intosh mouse compatible q User control Multilingual OSDmenu adjustments auto save and reset capability multifunction presentation image control A system Power on off on standby OSDmenu language Focus...

Page 6: ...input DIN 9 pin female connector q Weight 12 5lbs 5 7kgs q Dimensions W H D 9 8 5 9 11 7 15 7 250 150 298 398 mm q Environmental operation temperature 10 C to 32 C humidity 80 maximum q Safety Regula...

Page 7: ...2 Mechanical construction This section provides exploded view and replaceable parts for LCD projector The replaceable parts listed in order to you can quickly place an order for correct parts and als...

Page 8: ...dapter 15P 1800mm VGA Cable Audio In Cable 1800mm 42 80716 001 42 50115 001 42 80708 001 15P Mac Monitor Adapter Power Cord 1830mm RCA Audio Video Cable 2M Label PC 98 Adapter Battery 4 1 5V S Video C...

Page 9: ...ft Right Label of Carton Carton 36 00006 001 36 00007 001 Warranty Card 42 80303 003 Remote Mouse Package 42 80305 001 42 80307 001 X 2 42 80304 001 42 80306 001 X 2 Remote Control Remote Receiver Cab...

Page 10: ...attery 4 1 5V 9 42 50209 011 Cable S Video Cable 2M 10 36 80703 003 Quick Start Cards 11 51 80112 001 ESD Bag 420 600 0 07tmm 12 51 00027 001 PE Zipper Bag 33 25mm 13 36 80802 001 User s Manual Multil...

Page 11: ...S2 Mouse Adapter female 24 2 42 80306 001 Mac PC PS2 Remote Adapter female 25 42 50208 002 PC 98 Cable Adapter 15P 26 42 52112 001 PC 98 Adapter 15P 28 95 80702 001 Ceiling Mount Module includes follo...

Page 12: ...Service Manual 2 6 2 2 Exploded overview Please refer to Appendix on page 9 4 for oversize exploded view...

Page 13: ...4 9 1 0 0 8 1 7 0 8 1 6 e p i P t a e H h t i w r e v o C l A 1 0 0 1 3 7 0 8 1 6 s t e k s a G g n i d n u o r G 1 0 0 1 0 7 0 8 0 7 e l u d o M p m a L y s s A 8 3 1 0 0 5 1 7 0 8 3 2 r o t c e n n...

Page 14: ...l E 6 1 2 0 0 1 1 7 0 8 1 6 k c o L t h g i R r o t a v e l E 8 9 0 8 0 3 2 1 A W 5 8 8 3 M p a T n a P w e r c S 9 9 0 7 0 3 2 3 A W 5 8 7 3 M p a T n a P w e r c S 1 0 0 2 0 8 0 8 0 7 0 8 6 P E e l...

Page 15: ...l C n e p O 0 6 1 0 0 1 2 7 0 8 1 5 y l p p u S r e w o P L H M r o f n o i t a l u s n I 1 6 1 0 0 3 2 7 0 8 1 5 d r a o B h c t i w S r o f n o i t a l u s n I 2 6 1 1 0 9 2 7 0 8 1 6 n n a m s n a...

Page 16: ...projector You can realize optical projection system through the following block diagram and also the integral part of configuration Besides the relationship of the main board audio video board and dri...

Page 17: ...Service Manual 3 2 3 1 Whole structure...

Page 18: ...integrator lens is color separated by DM C and DM G penetrates a condenser lens and polarizer and irradiates the liquid crystal panels R and G q The light flux that has passed through DM G has its opt...

Page 19: ...irror To separate the light into Red Green and Blue three primary colors for the LCD panels 5 Input Polarizer The polarizers have been separated here from the LCD panels to avoid absorbing too much he...

Page 20: ...Service Manual 3 5 3 3 Main board 1 2 V...

Page 21: ...chip Circuit of the DC DC converter uses 12V and 5V DC In to regulate 5V 5VA 5V 12V power sources 5V for digital logic circuit 12V for inverter and 5V 5V for analog circuit q FIF0 The memory provide...

Page 22: ...ystem Controller Generate control timing of FIF0 Generate control timing of LCD the read timing base on PLL Generate control timing of line buffer Generate control timing of resizing circuit Generate...

Page 23: ...ALN NTSC N and SECAM a brightness contrast saturation control circuit a color space matrix and a 27 MHz VBI data bypass The CMOS circuit SAA7111A analog front end and digital video Decoder is a highly...

Page 24: ...lowspeaker channel facility digitally controlled via the I2 C bus for application in Hi Fi audio and television sound q Amplifier The TDA1517 is an integrated class B dual output amplifier in a 9 lead...

Page 25: ...Service Manual 3 10 3 5 Driver board...

Page 26: ...ons of bidirectional driving and braking it is capable of direct driving 6V 9V 12V motors The output voltage can be varied by using an external zener diode q TimingGenerator The PLSI1016 is a timing s...

Page 27: ...the power to the projector computer system and other attached devices then disconnect the power cable from the electronically outlet CAUTION 1 You must TAKE GLOVES CAP and SHOES which they protect pr...

Page 28: ...s and one on the Back cover 2 Pull up the Handle holder loosen two screws as shown left side pull up the Top cover 3 Disunite the Connector JP8 keypad cable between Top cover and Main board and then r...

Page 29: ...4 105 106 JP501 601 701 cables F Use clipper to pull black cap out and then detach JP501 601 701 connector cables 2 Unscrew 5 screws on the Driver board then remove the Driver board 3 Unplug the speak...

Page 30: ...ront cover 1 Unscrew 2 screws at the bottom and 1 screw at the top of the Front cover and then remove it 2 Unplug all cables on the Main board and unscrew 4 hex screws on the right side of Metal brack...

Page 31: ...Service Manual 4 5 4 4 The disassembly of Engine module 1 Unscrew 4 screws on the Engine module 2 Remove the Engine module...

Page 32: ...ssembly of Lamp power supply module 1 Unscrew 2 screws on the Lamp power supply module 2 Unscrew 1 screw on the Fan bracket 3 Unscrew 2 screws on the Lamp module 4 Unplug 5P Switch board cable 5 Remov...

Page 33: ...gniter Lamp power supply board 1 Unscrew 2 screws on the Bracket and slightly remove it 2 Unscrew 2 screws on the Igniter and remove it 3 Loosen 2 screws and 2 plastic screws on the Lamp power supply...

Page 34: ...ble and EMI cable unscrew 2 screws on the Switch board and remove it 2 Unscrew 3 screws on the Metal connector bracket and remove it 3 Unscrew 4 screws on the Fan module and remove it 4 7 The disassem...

Page 35: ...al 4 9 4 8 The disassembly of Lamp module 1 To take the standing low case toward yourself first 2 Loosen 2 screws on the Lamp cover and then remove it 3 Unscrew 2 screws on the Lamp module and pull ou...

Page 36: ...LVPS board and Switch board 1 Unscrew 2 screws and use the clipper to detach 2 plastic screws on LVPS board 2 Unscrew 2 screws and 2 plastic screws from EMI board 3 Loosen K nut 4 Disunite the cable f...

Page 37: ...al 4 11 4 10 The disassembly of LCD replacement 1 Unscrew 4 screws on the LCD upper bracket and then remove it 2 Unscrew 4 screws on the LCD bracket 3 Unscrew 3 screws on each LCD panel R G B and then...

Page 38: ...rvice Manual 5 1 Chapter 5 5 Pin assignment of boards This section provides each connector position on boards and signal of each pin We hope they will be useful when you are detecting your defect boar...

Page 39: ...GE2 3 VCC 30 GE3 4 VCC 31 GE4 5 Ground 32 GE5 6 Ground 33 GE6 7 IICDATA 34 GE7 8 VDCLK 35 Ground 9 IICCLK 36 Ground 10 VDSEL 37 BE0 11 VDVIN 38 BE1 12 VDHIN 39 BE2 13 VDODD 40 BE3 14 VDHREF 41 BE4 15...

Page 40: ...Signal Pin Name of Signal 1 5VS 2 Ground Pin Name of Signal Pin Name of Signal 1 5VS 3 Ground 2 N C Pin Name of Signal Pin Name of Signal 1 12Vfan 3 Ground 2 5VS Pin Name of Signal Pin Name of Signal...

Page 41: ...al Pin Name of Signal 1 Thermal 2 Ground Pin Name of Signal Pin Name of Signal 1 VCC 7 9V Fan 2 N C 8 Ground 3 5VS 9 12V Fan 4 Ground 10 Ground 5 12V 11 LVPS 6 Ground 12 Ground Pin Name of Signal Pin...

Page 42: ...of Signal 1 VOUT R 9 COMPO 2 VOUT G 10 Ground 3 VOUT B 11 N C 4 N C 12 N C 5 Ground 13 PCHSO 6 Ground 14 PCVSO 7 Ground 15 N C 8 Ground Pin Name of Signal Pin Name of Signal 1 VGAIN R 9 COMPA 2 VGAIN...

Page 43: ...SYNC 25 Ground 6 LCDVSYNC 26 LCDB0 7 Ground 27 LCDB1 8 LCDR0 28 LCDB2 9 LCDR1 29 LCDB3 10 LCDR2 30 LCDB4 11 LCDR3 31 LCDB5 12 LCDR4 32 LCDB6 13 LCDR5 33 LCDB7 14 LCDR6 34 Ground 15 LCDR7 35 RGT 16 Gro...

Page 44: ...106 JP701 5 2 2 JP101 Power In connector 5 2 3 JP102 Control connector Pin Name of Signal Pin Name of Signal 1 N C 6 Ground 2 10V Fan 7 12V 3 N C 8 Ground 4 Ground 9 5V IR 5 12V 10 Ground Pin Name of...

Page 45: ...6 4 Ground 24 GI7 5 HSYLCD 25 Ground 6 VSYLCD 26 BI0 7 Ground 27 BI1 8 RI0 28 BI2 9 RI1 29 BI3 10 RI2 30 BI4 11 RI3 31 BI5 12 RI4 32 BI6 13 RI5 33 BI7 14 RI6 34 Ground 15 RI7 35 BRGT 16 Ground 36 BXRG...

Page 46: ...l 1 10V Fan 2 Ground Pin Name of Signal Pin Name of Signal 1 PSIG 17 HST 2 Ground 18 HCK2 3 RSIG1 19 HCK1 4 RSIG2 20 Ground 5 RSIG3 21 Ground 6 RSIG4 22 BLK_R 7 RSIG5 23 ENB 8 RSIG6 24 VCK 9 RSIG7 25...

Page 47: ...16 7 SDA 34 G17 8 VDCLK 35 Ground 9 SCL 36 Ground 10 VDSEL 37 B10 11 VDVIN 38 B11 12 VDHIN 39 B12 13 N C 40 B13 14 N C 41 B14 15 Ground 42 B15 16 Ground 43 B16 17 R10 44 B17 18 R11 45 Ground 19 R12 46...

Page 48: ...Pin Name of Signal Pin Name of Signal 1 Ground 5 SPK R 2 N C 6 AER L 3 SPK L 7 AER R 4 N C Pin Name of Signal Pin Name of Signal 1 Ground 3 S Y 2 Ground 4 S C Pin Name of Signal Pin Name of Signal 1...

Page 49: ...2 Lamp power supply connector 5 4 4 CN3 EMI board connector Pin Name of Signal Pin Name of Signal 1 Ground 3 110 220V 2 110 220V Pin Name of Signal Pin Name of Signal 1 Ground 4 Switch 110 220V 2 110...

Page 50: ...on Note The pin2 pin3 are 115V when switch in turn off status The pin2 pin3 are 230V when switch in turn on status Pin Name of Signal Pin Name of Signal 1 Ground 6 To Igniter 2 ACIN Select 115V 230V 7...

Page 51: ...l Pin Name of Signal 1 VCC 7 9V Fan 2 N C 8 5V 3 Ground 9 12V Fan 4 Ground 10 Ground 5 12V 11 Standby 6 Ground 12 Ground 5 6 2 CN1 Switch connector Pin Name of Signal Pin Name of Signal 1 N C 6 Ground...

Page 52: ...Service Manual 5 15 5 7 Keypad board 5 7 1 Position Pin Name of Signal Pin Name of Signal 1 RDKB0 7 KBR2 2 RDKB1 8 LED0 3 RDKB2 9 LED1 4 RDKB3 10 LED2 5 KBR0 11 VCC 6 KBR1 12 Ground 5 7 2 Description...

Page 53: ...it and how to change the lamp were clearly described in this section After long periods of use you must be cleaning your engine unit this section provides two methods to clean it CAUTION 1 Do not touc...

Page 54: ...will detect the lamp life itself It will show you a warning message when the lamp is used over working hours When you see this message change the lamp as soon as possible 6 1 2 Lamp change direction 1...

Page 55: ...requires a Phillips screwdriver and slot screw driver q The color of grid pattern can be changed by press F1 while you adjust each of LCD panels For adjusting focus first adjust the green LCD panel un...

Page 56: ...ocus 7 Insert the slot screwdriver in the sites and Figure 1 and gently turn the screw until the screen and Figure 2 are in the sharp focus 8 Press zoom D button on the remote control unit to increase...

Page 57: ...nly the Red or Blue light is projected 3 Loosen the 4 screws B Figure 1 with the screwdriver 4 Insert the slot type screwdriver in the sites and Figure 1 and gently turn the screwdriver until the scre...

Page 58: ...3 For convergence adjustment use Green as the reference standard Align Red and Blue with Green by adjusting the position and angle of the Red and Blue LCD panels Screw A B and C Figure 7 are for conve...

Page 59: ...Service Manual 6 7 B A C V H D Figure7 Image movement L C Dpa n e l R e d B lu eL C Dp a n elu nit...

Page 60: ...l tend to darken and color blurring may occur When this occurs cleaning of the inside of the unit will be necessary For dust and light accumulation of contamination use an air spray to remove the dust...

Page 61: ...r each panel cleaning of the mirror is always performed with it attached to the main unit Perform the cleaning of each part according to the cleaning methods described below 1 LCD panels Assy LCD pane...

Page 62: ...This section provides technicians and people who have an electronic background a primary description about maintaining the product In general through this section troubleshooting procedure some easier...

Page 63: ...mputer q VCR Video Cassette Recorder q Screw Driver 7 2 Main procedure Start Connect all connection cables Turn on main switch All fans are working Fan Troubleshooting A LED is working Turn on main sw...

Page 64: ...Blue background shown on the screen Main board driver board Troubleshooting D Yes No Screen is OK E Performance Troubleshooting Yes No No Yes Switch to video A V is working fine Change A V board Yes...

Page 65: ...Service Manual 7 4 2 Keypad is OK Keypad Troubleshooting G Yes No No trouble found End...

Page 66: ...oting Start No Yes Lamp Fan is OK No Yes Yes LED fan is OK No Yes Change Fan No Change Main board No Change LVPS board Yes Power fan is OK No Yes End End End Yes Yes Yes Change Fan Yes Change Driver b...

Page 67: ...Service Manual 7 6 7 2 2 B LED troubleshooting Start No Change Main board Yes Change Thermal No Yes Change Keypad board Yes End...

Page 68: ...leshooting Start Lamp can t ignite No Yes Change igniter and retry No Yes Lamp is flashing No Yes Change switch board and retry No Yes End End Lamp is getting dim No Change lamp power supply and retry...

Page 69: ...4 D Main board and driver board troubleshooting Disassembly digital board unit and check cable connector Start Yes It still doesn t work No Yes Change Main board No Yes End Change Driver board Change...

Page 70: ...with straight line Yes Check DAC DAC 1 value Change Driver board No Yes Change LCD panel No Yes Yes Garbage pattern shown on the screen Change Main board No Yes Change Driver board Please refer to LC...

Page 71: ...Service Manual 7 10 7 2 6 F Remote control troubleshooting Replace battery and retry Start Yes Change new one remote control No Yes Change main board No Yes End End Change receiver Yes End End No...

Page 72: ...Service Manual 7 11 7 2 7 G Keypad troubleshooting Start No Yes Change Thermal Yes End Change keypad board retry It still didn t work...

Page 73: ...supply module Igniter and so on Through LCD panel specification you can realize the bright and dark spot standard The principles and features of engine were also provided All specifications they will...

Page 74: ...upports SXGA with simple display q High optical transmittance 20 typical q Built in cross talk free circuit and ghost free circuit q High contrast ratio with normally white mode 350 typical q Built in...

Page 75: ...t When a pixel is a partially or completely turned off during an entirely white or a single color raster Line defect Two or more continuous point defects 0 Item Standard String shaped partially uneven...

Page 76: ...Bright spot standards 1 Entirely black image Vsig VVC 4 5V at 25 C and 60 C Level T 55 Zone A 0 Zone B 1 Quantity Total 1 2 Gray image Vsig VVC 2 5V at 25 C Vsig VVC 2 35V at 60 C Level T 55 Zone A 0...

Page 77: ...k spot appearing in an entirely white T 25 At 25 C and 60 C An entirely white imageVsig VVC 0 5V 8 1 5 Manufacture date Zone Quantity A 1 B 4 A B C D A B C D A S O N Y B L C X 0 1 6 A L C 7 C L o t N...

Page 78: ...Typ 0 6 q Operating temperature 0 C to 70 C q Normal life time Approx 25000h at 60 C q Power output PL Range Up to 250 W adjusted to specified lamp q Power regulation stability 2 q Efficiency htypical...

Page 79: ...cal noise Less than 10dBA q EMC Suppression Included meets FCC and CE q Outlines L W H 112mm 80mm 40 5mm inclusive mounting spacer q Weight Approx 0 245kg q Housing open frame PCB q Terminal connectio...

Page 80: ...800ms delay to turn off after no ignition lamp failure controlled by the power supply q Outlines L W H 52 5mm 43 5mm 22mm q Weight 0 085 kg q Terminal connection ring type for M2 5 screws 8 4 LVPS mod...

Page 81: ...ion of high color uniformity ratio especially for computer data and video Image projection For projection lens a motor driven zooming and focusing function is used for easy operation of the projector...

Page 82: ...Liquid crystal panel 1 3 inches Lens shift U D ratio 8 1 Effective panel size 1 3 inches Effective projection size 20 400 inches Projection magnification 15 38X 20in 307 69X 400in 8 5 4 Image size in...

Page 83: ...result Design so that the lamp power source will not turn on useless the lamp is set in place 2 Do not look straight at the lamp while it is ON or immediately after it turns OFF for ultraviolet ray is...

Page 84: ...t apply undue force to the optical engine such as twisting or bending force 5 Do not place the optical engine close to fire or any high temperature generating object 6 Do not dip the optical engine in...

Page 85: ...40 480 43 27 85 01 VESA SVGA 800 600 35 16 56 25 VESA SVGA 800 600 37 88 60 32 VESA SVGA 800 600 48 08 72 19 VESA SVGA 800 600 46 88 75 00 VESA SVGA 800 600 53 67 85 06 VESA XGA 1024 768 48 36 60 00 V...

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