Page 1: Service Manual
FILE NO. SERVICE MANUAL Multimedia Projector Model No. PLc-Xt25 PLc-Xt25L PLc-Xt20 PLc-Xt20L U.S.A, Canada, Europe, U.K, Asia original Version * PLC-XT25L, PLC-XT20L---- without Projeccton Lens. Match the Chassis No. on the unit's back cover with the chassis No. MZ7-Xt2500 Chassis No. in the Service Manual. MZ7-Xt25L00 I f the Original Version Service Manual Chassis No. does Kc6-Xt2000 not match the unit’s, additional Service Literature is re-...
Page 2: Table Of Contents
Contents SERVICE MANUAL ............1 Motor control stage ........... 84 Contents ................ Bus control stage ............85 Safety Instructions ............3 LED drive & RC control stage ........86 Safety Precautions ............3 Power supply & power failure circuit ......87 Product Safety Notice ..........3 Indicators and Projector Condition ......88 Service Personnel Warning ........3 Power failure detection system ........ 90 Specifications ..............4 Error information table ..........90 Circuit Protections ............5 Power failure detection tree ........91 Fuse .
Page 3: Safety Instructions
Safety Instructions Safety Precautions WARNING: The chassis of this projector is isolated (COLD) from AC line by using the converter transformer. Primary side of the converter and lamp power supply unit circuit is connected to the AC line and it is hot, which hot circuit is identified with the line ( ) in the schematic diagram. For continued product safety and protection of person- nel injury, servicing should be made with qualified personnel. The following precautions must be observed. ment covers or shields, barriers, etc. 1: An isolation transformer should be connected in the power line between the projector and the AC DO NOT OPERATE THIS PROJECTOR WITHOUT line before any service is performed on the projec- THE PROTECTIVE SHIELD IN POSITION AND PR tor.
Page 4: Specifications
Feet Adjustment 0˚ to 5.0˚ Panel Resolution LCD Panel System 1.0” TFT Active Matrix type, 3 panels Panel Resolution 1,024 x 768 dots Number of Pixels 2,359,296 (1,024 x 768 x 3 panels) Signal Compatibility Color System PAL, SECAM, NTSC, NTSC4.43, PAL-M, and PAL-N High Definition TV Signal 480i, 480p, 575i, 575p, 720p, 1035i, and 1080i Scanning Frequency H-sync. 15 kHz–100 kHz, V-sync. 50 Hz–100 Hz Optical Information Projection Image Size (Diagonal) Adjustable from 30” to 300” (PLC-XT25/PLC-XT20) Throw Distance 3.9’–32.8’ (1.2 m–10.0 m) Projection Lens F=1.7 to 2.1, f=33 to 43 mm with manual zoom and focus Projection Lamp 300 W Interface Input 1 Digital (DVI-D) x 1, Analog (Mini D-sub 15 pin) x 1 Input 2 BNC Type x 5 (G or Video/Y, B or Cb-Pb, R or Cr-Pr, HV and V) Input 3 RCA Type x 1, Mini DIN 4 pin x 1 AUDIO IN Audio 1 (Mini Type stereo), Audio 2 (Mini Type stereo), Audio 3 (RCA Type) x 2 Analog Out Mini D-sub 15 pin x 1 Audio Out...
Page 5: Circuit Protections
Circuit Protections This projector provides the following circuit protections to operate in safety. If the abnormality occurs inside the projec- tor, it will automatically turn off by operating one of the following protection circuits. Fuse A fuse is located inside of the projector. When the POWER indicator is not lightning, the fuse may be opened. Check the fuse as following steps. The fuse should be used with the following type; Loosen the screw and Fuse Part No. : 645 090 3144 open the lamp cover. tYPe t10.0AH 250V FuSe SKY-GAte : tYPe SG5013010 How to replace the fuse 1. L oosen the screw of the lamp cover and open the lamp cover. . L oosen screws of lamp ass'y and pull out the lamp ass'y.
Page 6: Thermostat (Sw901)
Circuit Protections Thermostat (SW901) There is the thermostat (SW901) inside of the projector to thermostat detect the internal temperature rising abnormally. When the internal temperature reaches near 100˚C, the thermostat (SW901) opens to stop the operation of the power supply circuit. The thermostat will automaticallly return to normal condi- tion when the internal temperature becomes normal (about 60˚C). Lamp cover switch (SW902) Lamp cover switch (SW902) The lamp cover switch (SW90) cuts off the drive signal to the lamp circuit when the lamp cover is removed or not closed completely. After opening the lamp cover for replac-...
Page 7: Temperature Sensors (Th901, Th90, Ic8841)
Circuit Protections Temperature sensors (TH901, TH902, IC8841) The projector provides a temperature sensor IC on the Main board and thermistors. The temperature sensor IC moniors arround the lamp house, the thermisstors are placed on the blue panel holder and on the intake duct. - Internal temperature sensor A (IC8841) (arround the lamp house) - Panel sensor B (TH90) (arround the blue panel) - Room temperature sensor C (TH901) (arround the intake duct) TH90 IC8841 (Behind PWB) TH901 the projector is shut down and the WArNING teMP. indi- top control cator is blinking red. When the temperature inside the projector reaches a certain level, the projector will be automatically shut down to protect the inside of the projector. The POWER indicator is blinking while the projector is being cooled down. When the projector has cooled down enough (to its normal operating tempera- ture), it can be turned on again by pressing the ON/STAND- BY button.
Page 8: Power Failure And Fan Lock Detection
Circuit Protections Power failure and fan lock detection The projector provides the detection circuits of the power failure and the fan lock. When the detection circuit detects an error at the power supply line or at the fan operation circuit, the projector will turn into the standby mode to protect the other circuits dfective. the projector is shut down and all five indicators are top control blinking. When the projector detects an abnormal condition, it will be automatically shut down to protect the inside of the projec- tor and all five indicators on the top panel blink. In this case, unplug the AC power cord and plug it, and then turn on the projector once again to verify operation. If the projector can- not be turned on and these indicators are still blinking, unplug the AC power cord. cAutIoN DO NOT LEAVE THE PROJECTOR WITH THE AC POWER CORD CONNECTED UNDER AN AB-...
Page 9: Maintenance
Maintenance Cleaning the Air Filter Filter prevents dust from accumulating on the optical elements inside the projector. Should the filter becomes clogged with dust particles, it will reduce cooling fans’ effectiveness and may result in internal heat buildup and ad- versely affect the life of the projector. If a “Filter warning” icon (yellow or red) appears on the screen and the WARN- ING FILTER indicator lights or blinks, clean the filter immediately. Clean the filter by following the steps below. Turn off the projector, and unplug the AC power cord from the AC outlet. First, clean up the dust on the projector and around the air vents. Pull out the filter cover from the projector and then re- move the filter. Gently clean the filter by using a brush or blower. Filter Filter cover WArNING: do not wash the filter with water and any...
Page 10: Lamp Replacement
Maintenance Lamp Replacement When the projection lamp of the projector reaches its end top control of life, the Lamp replacement icon appears on the screen and LAMP REPLACE indicator lights yellow. Replace the lamp with a new one promptly. The timing when the LAMP REPLACE indicator should light is depending on the lamp mode.
Page 11: Resetting The Lamp Counter
Maintenance Resetting the Lamp Counter Be sure to reset the Lamp counter after the lamp is replaced. When the Lamp counter is reset, the LAMP RE- PLACE indicator stops lighting and the Lamp replacement icon disappears. Lamp counter Press the MENU button to display the On-Screen Menu. Use the Point 7 8 buttons to move the red framed pointer to the Setting Menu icon. Use the Point ed buttons to move the red framed point- er to Lamp counter and then press the SELECT button. A dialog box appears showing the total accumulated time Select Reset and the “Lamp of the lamp usage and the reset option. Select Reset and replacement counter Reset?” the “Lamp replacement counter Reset?” appears. Select appears. [Yes] to continue. Another confirmation dialog box appears, select [Yes] to reset the Lamp counter. Select [Yes], then another confirmation ✔ Note: box appears. • D o not reset the Lamp counter without implementing lamp replacement. Be sure to reset the Lamp counter only after Select [Yes] again to reset replacing the lamp.
Page 12: Quick Maintenance
Maintenance Quick maintenance This projector provides a prism cover on the cabinet top to enhance the service maintenance. This enables service personel to align the optical adjustment or replace the optical parts without disassembly the cabinet top. 1. L oosen 1 screw-A and open the prism cover panel. . T o remove the LCD Panel/Prism ass'y, loosen 3 screws-B and disonnect a socket-D, and then pull the LCD Panel/ Prism ass'y up. 3. T o remove the Optical filter ass'y, remove a screw-C on each stopper of the Optical filter ass'y and then pull the Optical filter ass'y up. Prism cover panel Screw-A Maintenance Screw-B Screw-c Grounding Socket-d wire Screw-c Screw-B Screw-B Screw-c -1-...
Page 13: Prohibotion Of Motor Control
Maintenance Prohibotion of motor control This projector provides a function to prohibit the operation of motors. After installing the projector and then setting up this function. You can protect the unexpected operation by the users. All the motor controls, Focus, Zoom and Lens- shift, will not be operated. The prohibition icon will appear on the screen when user presses any of the motor control buttons. Prohibition icon Setting up procedures 1. Enter the service mode. . S elect Group no. "00" and Item no. "50". Change Data value from "0" (Not prohibited) to "1" (Prohibited). Now the motor control is prohibited. 3. Exit from the service mode. To cancel the prohibition mode, set value to "0" in the step . * H ow to enter the service mode and select the group, item and data value, see "Service Adjustment Menu Opera- tion". -13-...
Page 14: Security Function Notice
Security Function Notice This projector provides security functions such as "Key lock", "PIN code lock" and "Logo PIN code lock". When the pro- jector has set these security function on, you are required to enter correct PIN code to use the projector. If you do not know the correct PIN code to the projector, the projector can no longer be operated or started. In this case, you must reset those function first according to the resetting procedure described below and then check up on the projector. Function description Locks operation of the top control or the remote con- trol. If the Key lock is enabled with top control lock, the pro- Key lock jector can no longer be started. Initial setting: Key lock function is disabled Prevents the projector from being operated by an un- authorized person. PIN code lock Initial code: “1234” Prevents an unauthorized person for changing the start-up logo on the screen. Logo PIN code lock Initial code: “4321”...
Page 15: Mechanical Disassembly
Mechanical Disassembly Mechanical disassembly should be made following procedures in numerical S crews Expression order. (Type ) mm Diameter x Length Following steps show the basic procedures, therefore unnecessary step may T type M Type be ignored. Caution: The parts and screws should be placed exactly the same position as the origi- nal otherwise it may cause loss of performance and product safety. The wiring method of the leads and ferrite cores should be returned exactly the same state as the original, otherwise it may cause lose of performance and product safety. -1 cabinet top ass'y removal-1. 1. Remove 1 cover-A and covers-B. Cover-A Fig.
Page 16 Mechanical Disassembly -3 cabinet top ass'y removal-3. 1. R emove 6 screws-A(M3X8) and remove the Cabinet top ass'y. cabinet top ass'y Fig. 1-3 -4 cabinet top ass'y removal-4. 1. Loosen screw-A(M3X11) and open the Prism cover panel. (Press places (unhook) and remove the Prism cover panel upward.) . Remove 3 screws-B(T3X8) and remove the shield plate. Prism cover panel Prism cover panel Fig. 1-4a Shield plate Press the places (unhook) and upward Fig.
Page 17 Mechanical Disassembly AV Panel and Side Panel removal. 1. Remove 5 screws-A(M3X8) and remove the AV Panel. . Remove 1 screw-B(M3X6) and remove the Side Panel. AV panel Side panel Fig. 2 Shield plate top-A removal. 1. Remove 11 screws-A(M3X6) and remove the Shield plate top-A. Shield plate top-A Fig. 3 -17-...
Page 18 Mechanical Disassembly -1 Main board ass'y removal-1. 1. Remove 3 screws-A(M3X6) and remove screws-B(M3X6). .Remove the Shield plate top-B, Main board ass'y and remove the Shield plate bottom. Shield plate top-B Main board ass'y Shield plate bottom Fig. 4-1 -18-...
Page 19 Mechanical Disassembly -2 Main board ass'y removal-2. 1. Unhook and remove the Button upward. . Remove the DEC inlay. 3. Remove the Heat sink sheet-A. Button dec inlay Heat sink sheet-A Fig. 4-2 -3 Main board ass'y removal-3. 1. Remove 1 screw-A(M3X6). . Remove nuts-B, nuts-C, 1 screw-D and remove the Main PWB Holder. Main PWB Holder Fig. 4-3 -19-...
Page 20 Mechanical Disassembly Lamp ass'y removal. 1. Loosen screws-A(M3X13) and remove the Lamp ass'y. . Remove the Spacer sheet. Spacer sheet Lamp ass'y Fig. 5 -1 Lens cover ass'y removal-1. 1. Remove 4 screws-A(T3X8) and remove the Lens cover ass'y. Lens cover ass'y Fig. 6-1 -0-...
Page 21 Mechanical Disassembly -2 Lens cover ass'y removal-2. 1. Remove screws-A(T3X8) and remove the Stopper button. . Remove the Button, remove the Spring and remove the Holder. Stopper button Button Spring Holder Lens cover top Fig. 6-2 optical engine removal. 1. Remove 5 screws-A(T3X10) and remove the Optical engine. optical engine Fig. 7 -1-...
Page 22 Mechanical Disassembly Lens cover bottom removal. 1. Remove screws-A(T3X8) and remove the Optical engine. Lens cover bottom Fig. 8 --...
Page 23 Mechanical Disassembly -1 AV board & Network joint board ass'y removal-1. 1. Remove 3 screws-A(T3X8) and remove the AV board & Netwark joint board ass'y. AV board & Network joint board ass'y Fig.9-1 -2 AV board & Network joint board ass'y removal-2. 1. Remove screws-A(M3X6) and screws-B(M.6X10). . Remove the AV board ass'y and remove the Network joint board ass'y. AV board ass'y Network joint board ass'y Fig.9-2 -3-...
Page 24 Mechanical Disassembly -3 AV board & Network joint board ass'y removal-3. 1. Remove 4 screws-A(M3X6) and remove the Network joint board. Network joint board Fig.9-3 -4 AV board & Network joint board ass'y removal-4. 1. Remove screws-A(M3X6), screws-B(T3X8) and remove nuts-C. . Remove the AV board. AV board Fig.9-4 -4-...
Page 25 Mechanical Disassembly -1 thermostat(SW901) ass'y removal-1. 1. Remove 1 screw-A(M3X6) and remove the Thermostat(SW901) ass'y. thermostat ass'y Fig.10-1 -2 thermostat(SW901) ass'y removal-2. 1. Remove screws-A(M3X4) and remove the Thermal switch(SW901). thermostat(SW901) to Power(dc) unit Fig.10-2 to Power(filter unit) -5-...
Page 26 Mechanical Disassembly -1 exhaust Fan(FN901, FN902) ass'y removal-1. 1. Remove screws-A(T3X8) and remove the Exhaust Fan(FN901, FN90) ass'y. exhaust Fan ass'y Fig.11-1 -2 exhaust Fan(FN901, FN902) ass'y removal-2. 1. Remove 4 screws-A(M3X8), remove the Fan guard cover and the Fan(FN901). . Remove 4 screws-B(M3X8) and remove the Fan(FN90). Holder Fan Fan(FN902) Fan(FN901) Fan guard cover Fig.11-2 -6-...
Page 27 Mechanical Disassembly exhaust Fan duct removal. 1. Remove screws-A(T3X6) and remove the Lamp ballast connector. . Remove screws-B(T3X10) and remove Exhaust Fan duct. Lamp ballast connector exhaust Fan duct Fig.12 -1 Power board(Ballast) ass'y removal-1. 1. Remove 1 screw-A(M3X6), 4 screws-B(T3X8) and remove the Power board(Ballast) ass'y. Power board(Ballast) ass'y Fig.13-1 -7-...
Page 28 Mechanical Disassembly -2 Power board(Ballast) ass'y removal-2. 1. Remove Fixer clamp and remove the Power board(Ballast). . Remove the Spacer sheet. Ballast board (A901) Spacer sheet Fixer clamp Shield plate main power Fig.13-2 -8-...
Page 29 Mechanical Disassembly Power board ass'y removal. 1. Remove 1 screw-A(M3X8), 3 screws-B(T3X8) and remove the Power board ass'y. . Remove the Spacer sheet. Power board ass'y Spacer sheet Fig.14a Power board ass'y Power board(dc) (A903) Power board(Ac) (A902) Fig.14b -9-...
Page 30 Mechanical Disassembly -1 Power board(Filter) ass'y removal-1. 1. Remove 1 screw-A(M3X6), screws-B(T3X8) and remove the Power board(Filter) ass'y. Power board(Filter) ass'y Fig.15-1 -2 Power board(Filter) ass'y removal-2. 1. Remove 1 screw-A(M.5X5) and remove the Fuse cover. . Remove the Holder PWB, remove the Spacer sheet and remove the Power board(Filter). Holder PWB Power board(Filter) Fuse cover (A904) Spacer sheet Fig.15-2 -30-...
Page 31 Mechanical Disassembly -1 Intake Fan(FN904,FN905)removal-1. 1. Pull out air filter base ass'y. . Remove 5 screws-A(T3X8) and remove the intake duct ass'y. Intake duct ass'y Filter base ass'y Fig.16-1 -2 Intake Fan(FN904,FN905)removal-2. 1. Remove 1 screw-A(M3X6), the Shield plate-A and remove the Shield plate-B. Shield plate-A Shield plate-B thermistor(tH901) Intake duct Fig.16-2 -31-...
Page 32 Mechanical Disassembly -3 Intake Fan(FN904,FN905)removal-3. 1. Remove 4 screws-A(T3X8) and remove the Panel duct. . Remove screws-B(T3X10) and remove the Fan(FN904). . Remove screws-C(T3X10) and remove the Fan(FN905). Panel duct FN904 FN905 Fig.16-3 Shield plate BtM removal. 1. Remove screws-A(T3X8) and remove the Shield plate BTM. . Remove the Lamp cover ass'y. Shield plate BtM Lamp cover ass'y Fig.17 -3-...
Page 33 Mechanical Disassembly Lamp cover ass'y disassemblies. 1. Remove screws-A(T3X8) and remove the Shield plate. Shield plate Lamp cover Fig.18 Lamp cover switch and r/c Front board removal. 1. Remove 1 screw-A(T3X8) and remove the R/C Front board(A850). . Remove 1 screw-B(T3X1) and remove the Lamp cover switch(SW90). 3. Remove the Speaker(SP901) upward. r/c Front board (A2850) Lamp cover switch (SW902) Speaker(SP901) Fig.19 -33-...
Page 34: Optical Parts Disassembly
Optical Parts Disassembly Projection lens removal. 1. P ress and hold the Fixing lever-A and turn the Projection lens counterclockwise(about 1/6 turn) and then take it off. Lever-A Fig.20a Note in the Mounting Projection Lens Lever-A Insert the Projection lens into the guide at a position where the both markers on the projection lens and the mounting base come together, and turn it clockwise until the Fixing Lever is set to the fixing position. Point Markers Fig.20b -34-...
Page 35 Optical Parts Disassembly -1 Lcd panel/Prism ass'y removal 1. Loosen 3 screws-A(M.5X10.) and discconnect 1 socket-C of grounding wire, and then remove the LCD panel/Prism ass'y. . Remove 1 screw-B(MX4) and remove the Stopper. Lcd panel/Prism ass'y Stopper Fig.21a Fig.21b Note; D o not replace the LCD panel separately otherwise it cannot obtain proper picture. Do not touch the prism, the LCD panel and electrode of flexible cable. IMPortANt NotIce on Lcd Panel/Prism Ass'y replacement L CD panels used for this model cannot be replaced separately. Do not disassemble the LCD Panel/Prism Ass’y. These LCD panels are installed with precision at the factory. When replacing the LCD panel, should be replaced whole of the LCD panels and prism ass’y at once.
Page 36 Optical Parts Disassembly Lcd Panel type check There are types combination of the LCD panel/prism assembly and the optical unit, named Type-R and Type-L. Since both have no compatibility, each type should be combined with the same type, and the specific parts should be used. If not, the poor optical characteristics may degrade the quality of a projected image. Confirm the "R" label or "L" label on top of the LCD panel/ prism assembly and the optical unit. Note: LCD panel/prism assembly should be used with the same type of the optical unit. matched. matched. Confirm that both marking "R" is Confirm that both marking "L" is Lcd Panel/Prism Ass'y type-r Lcd Panel/Prism Ass'y type-L -2 Polarized glass, Pre-Polarized glass removal 1. Remove each screw (MX4) and holder. Polalized glass (G) (Green) Pre-Polalized glass (G) Polalized glass (B) (Blue) Polalized glass (r) Film...
Page 37 Optical Parts Disassembly Lens mount removal. 1. Remove 4 screws-A(M.5X10) and remove the Lens mount. Lens mount Fig.22 Lens shift ass'y removal. 1. Remove 4 screws-A(M3X6) and remove the Lens shift ass'y. Lens shift ass'y Fig.23 -37-...
Page 38 Optical Parts Disassembly condenser lens ass'y removal. 1. Remove 1 screw-A(M.5X5) and remove the Condenser lens ass'y. . Remove screws-B(M.5X5) and remove the Lens holder ass'y. 3. Remove 1 screw-C(T3X6) and remove the Condenser lens. condenser lens ass'y Mounting plate Lens holder Fig.24a Fig.24b condenser lens Lens holder ass'y Slide the Lens holder ass'y. Hooks Hooks condenser lens Fig.24c Fig.24d -38-...
Page 39 Optical Parts Disassembly relay lens ass'y removal. 1. Remove 1 screw-A(M.5X5) and remove the Relay lens ass'y. . Remove 1 screw-B(M.5X5) and remove the Lens holder ass'y. 3. Remove 1 screw-C(T3X6) and remove the Relay lens. relay lens ass'y Mounting plate Lens holder Fig.25a relay lens Fig.25b Lens holder ass'y Slide the Lens holder ass'y. Hook Hooks condenser lens Fig.25c Fig.25d -39-...
Page 40 Optical Parts Disassembly Green Polarized glass ass'y and optical filter ass'y removal. 1. Remove 1 screw-A(M.5X6) and remove the stopper. . Remove the Polarized glass ass'y and remove the Optical filter ass'y. Stopper Polarized glass ass'y optical filter ass'y Fig.26a Holder PoL Marker comes this top side. Slit comes Polarized glass side. Holder WV Marker comes this top side. (Green glass) Polarized glass Film attached side comes this side. optical filter Fig.26b -40-...
Page 41 Optical Parts Disassembly Blue Polarized glass ass'y and optical filter ass'y removal. 1. Remove 1 screw-A(M.5X6) and remove the stopper. . Remove the Polarized glass ass'y and remove the Optical filter ass'y ass'y. Stopper Polarized glass ass'y optical filter ass'y Fig.27a thermistor(tH902) Spacer Holder WV Slit comes Polarized glass side. Holder PoL Marker comes this top side. Polarized glass Film attached side comes this side. Fig.27b optical filter -41-...
Page 42 Optical Parts Disassembly red Polarized glass ass'y and optical filter ass'y removal. 1. Remove 1 screw-A(M.5X6) and remove the stopper. . Remove the Polarized glass ass'y and remove the Optical filter ass'y ass'y. Stopper Polarized glass ass'y optical filter ass'y Fig.28a Holder PoL Slit comes Polarized Holder WV glass side. Marker comes this top side. Polarized glass Film attached side comes this side. Fig.28b optical filter -4-...
Page 43 Optical Parts Disassembly Blue Pre-polarized glass removal. 1. Remove the Blue Pre-plarized glass upward. Pre-polarized glass Film attached side comes behind Fig.29 -1 optical base top removal-1. 1. Remove screws-A(T3X10) and remove the Stopper lens. Stopper lens Fig.30-1 -43-...
Page 44 Optical Parts Disassembly -2 optical base top removal-2. 1. Remove 3 screws-A(T3X10) and remove the optical base top. optical base top Fig.30-2 -3 optical base top removal-3. 1. Remove screws-A(T3X10) and remove the Fan(FN903) ass'y. . Unhook hooks and pull out the Shield plate. Fan(FN903) ass'y Hook Fig.30-3 Shield plate -44-...
Page 45 Optical Parts Disassembly Fan(FN903) ass'y disassemblies. 1. Remove screws-A(M3X8) and remove the Fan(Fn903). Fan(FN903) Fig.31 -45-...
Page 46: Optical Parts Locations And Directions In The Optical Unit
Optical Parts Disassembly Optical parts locations and directions in the Optical Unit Parts Name Parts Name LENS,INTEGRATOR(IN) MIRROR(B) LENS,INTEGRATOR(OUT) LENS,CONDENSER(B) ASSY,PRISM(PBS) PREPOLARIZED GLASS(IN) LENS,CONDENSER(IN) LENS,CONDENSER(R) MIRROR(W-COLD) MIRROR(R) DICHROIC MIRROR (B) DICHROIC MIRROR (G) LENS,CONDENSER(G) LENS,RELAY(IN) * F ilm attached side comes to LCD panel side. Shield Plate -46-...
Page 47 Optical Parts Disassembly The marker comes top side. Direction of print. The marker comes top side. The marker comes top Direction of print. side. Direction of print. Integrator lens (IN) Integrator lens (out) Rugged surface side comes this side and Rugged surface side comes this side and the marker comes top side the marker comes top side -47-...
Page 48 Optical Parts Disassembly The marker comes this surface side. The marker comes this surface side. The marker comes this surface side and this place The marker comes this surface side. The marker comes this surface side. The marker comes this surface side and this place Film attached side comes this side. chamfercorner comes this side. -48-...
Page 49: Adjustments
Adjustments Adjustments after Parts Replacement : Adjustment necessary : Check necessary ● ❍ disassembly / replaced Parts Lcd/ conden- relay Polarized optical Integ- Power Main Prism Lens Glass Filter rator Fans Board Board Ass’y Lens (out) (PoL) (WV) Lens Optical axies adjustment ● ● ●...
Page 50: Optical Adjustments
Optical Adjustments Before taking optical adjustments below, remove the Cabinet Top following to the "Mechanical Disassemblies". Adjustments require a .0mm hex wrench, Philips Screwdriver and a slot screwdriver. When you adjust Integrator lens or Relay lens adjustment, you need to disconnect some connectors and FPC cables of LCD panels on the main board. When adjusting optical component, adjust each adjustment item in numerical order. Incorrect adjustment steps may produce improper adjustment. The items adjusted correctly can be omitted from the steps. Note: D o not disconnect connectors on the main board, because the projector can not turn on or operate properly for adjustment. WArNING : uSe uV rAdIAtIoN eYe ANd SKIN ProtectIoN durING SerVIcING cAutIoN: to prevent suffer of uV radiation, those adjustments must be completed within 25 minutes. 2.contrast adjustment (PoL) 3.contrast adjustment (WV) 2.contrast adjustment (PoL) 3.contrast adjustment (WV)
Page 51: 1. Optical Axis Adjustment
Optical Adjustment 1. optical axis adjustment Before adjustment 1. Turn the projector on by a state of without FPC cables. . Condenser lens adjustment Loosen 1 screw A and screws B. 3. Relay lens adjustment Loosen 1 screw C and 1 screw D. Screw-A condenser lens adjustment Screws-B Screw-c relay lens adjustment Screw-d -51-...
Page 52: Condenser Lens Adjustment
Optical Adjustment condenser lens adjustment-1 1. A djust the slot E to make shading appears on the right and left(magenta and cyan) of the screen as shown in figure. . A djust the slot F to make shading appears on the top and bottom(cyan and magenta) of the screen as shown in figure. condenser lens adjustment -1 Screws-B Screw-A Slot-e Slot-F cYAN cYAN White White MAGeNtA MAGeNtA -5-...
Page 53: Relay Lens Adjustment
Optical Adjustment relay lens adjustment 3. Adjust the slot G. It is adjusted that cyan and the magenta in the top and bottom part become the same width. 4. Adjust the slot H. It is adjusted that cyan and the magenta in the right and left part become the same width. 5. Tighten screw c and screw d to fix the relay lens unit. Slot-H Screw-d Screw-c Slot-G cYAN cYAN cYAN cYAN MAGeNt A White White White White MAGeNtA MAGeNtA MAGeNtA -53-...
Page 54 Optical Adjustment condenser lens adjustment-2 6. Adjust the slot F to make color uniformity in white by using a slot screwdriver. (Top and bottom shading are erased.) 7. Adjust the slots E to make color uniformity in white by using a slot screwdriver. (Right and left shading are erased.) 8. Tighten 1 screws A and screws B to fix the integrator lens unit. condenser lens adjustment -1 Screws-B Screw-A Slot-e Slot-F cYAN cYAN cYAN White White White White MAGeNtA MAGeNtA MAGeNtA -54-...
Page 55: Contrast Adjustment (Pol)
Optical Adjustment 2. Contrast adjustment (POL) [ Before Adjustment ] - Input a 100% of black raster signal. G-contrast adjustment (PoL) 1. L oosen a screw on the stopper plate which you intend to adjust. . A djust the lever (POL) to obtain the darkest brightness on the screen. (This screw is tightened later. this screw is tightend after Optical filter adjustment.) Lever-K Screw-J Screw-J Lever-K Polarized glass unit (Green) -55-...
Page 56 Optical Adjustment B-contrast adjustment (PoL) 1. L oosen a screw on the stopper plate which you intend to adjust. . A djust the lever (POL) to obtain the darkest brightness on the screen. (This screw is tightened later. this screw is tightend after Optical filter adjustment.) Lever-M Screw-L Screw-L Lever-M Polarized glass unit (Blue) -56-...
Page 57 Optical Adjustment r-contrast adjustment (PoL) 1. L oosen a screw on the stopper plate which you intend to adjust. . A djust the lever (POL) to obtain the darkest brightness on the screen. (This screw is tightened later. this screw is tightend after Optical filter adjustment.) Lever-P Screw-N Lever-P Screw-N Polarized glass unit (red) -57-...
Page 58: Contrast Adjustment (Wv)
Optical Adjustment 3. Contrast adjustment (WV) [ Before Adjustment ] - Input a 100% of black raster signal. G-contrast adjustment (WV) 1. A djust the lever (WV) to obtain the darkest brightness on the screen. . Tighten the screw J. B-contrast adjustment (WV) 1. A djust the lever (WV) to obtain the darkest brightness on the screen. . Tighten the screw L. r-contrast adjustment (WV) 1. A djust the lever (WV) to obtain the darkest brightness on the screen. . Tighten the screw N. Lever-r Lever-S Lever-t Lever-r, S, t Screw-L Screw-J optical filter unit (r, G, B)
Page 59: Electrical Adjustments
Electrical Adjustments Service Adjustment Menu Operation to enter the service mode MeNu SeLect button To enter the “Service Mode”, press and hold the and for more than 3 seconds. The service menu appears on the screen as follows. to adjust service data MeNu button SeLect button Select the adjustment group no. by pressing the (increase) or (decrease), and button select the adjustment item no. by pressing the pointer or d , and change the data value by pressing the 7 button or 8 . Refer to the “Service Adjustment Data Table” for further description of adjustment group no., item no. and data value. to exit the service mode oN/StANd-BY button To exit the service mode, press the Service Mode...
Page 60: Circuit Adjustments
Electrical Adjustment Circuit Adjustments CAUTION: T he each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the following adjustments except requiring the readjustments in servicing otherwise it may cause loss of performance and product safety. WArNING : uSe uV rAdIAtIoN eYe ANd SKIN ProtectIoN durING SerVIcING. cAutIoN: to prevent suffer of uV radiation, those adjustments must be completed within 25 minutes. [Adjustment Condition] 16 steps gray scale pattern ● Input signal Video signal ....... 1 .0Vp-p/75W terminated, 16 steps gray scale (Composite video signal)
Page 61 Electrical Adjustment c PC-Auto Calibration adjustment v Video-Auto Calibration adjustment 1. Enter the service mode. 1. Enter the service mode. . R eceive the 16-step grey scale computer signal with . R eceive the 16-step grey scale composite video sig- Input1 [rGB] Input3 [Video] mode. nal with mode. 3. T o start the auto-calibration for PC adjustment, select 3. T o start the auto-calibration for Video adjustment, group no. “ ”, item no. “...
Page 62: Common Center Adjustment
Electrical Adjustment n Common Center adjustment . White Balance adjustment [PC] 1. Receive the 50%-Whole Gray computer signal with 1. R eceive the 16-step gray scale computer signal with computer1 [rGB] Input1 [rGB] mode. mode. . Enter the service mode. . E nter the service mode, select group no. “ ” item no. “ ” (Red) or “ ” (Blue), and change Data values 3. Select group no. “...
Page 63: Test Points And Locations
Electrical Adjustment Test Points and Locations MAIN BoArd TP35B IC501 TP35R K35G TP35G TPFAN4 TPFAN2 TPFAN1 TPFAN3 -63-...
Page 64: Service Adjustment Data Table
Electrical Adjustment Service Adjustment Data Table These initial values are the reference data written from the CPU ROM to memory IC when replaced new memory IC. The adjustment items indicated with “✻” are required to readjust fol- lowing to the “Electrical adjustments”. Other items should be used with the initial data value. Group/ Item Name Function Initial Range...
Page 65: Electrical Adjustment
Electrical Adjustment Group/ Item Name Function Initial Range Note Item 183 PostCoast SCART 575i 0 - 63 Group 10 Sync Processor Minimum sync amplitude threshold for HLCK 0 SYNCAMPHLCKTOLOW 0x1000 0 - 9999 1 to 0 tansition Minimum sync amplitude threshold for HLCK 1 SYNCAMPHLCKTOHI 0x700 0 - 9999...
Page 66 Electrical Adjustment Group/ Item Name Function Initial Range Note Item Group 47 Noise Reduction (Time) Effective only for N.R L1 0 Noise Pixel Range <NSRANGEY> / <NSRANGEUV> 0 - 2 1 Noise Region 0 <NSREGIONY0> / <NSREGIONUV0> 0 - 1023 2 Noise Region 1 <NSREGIONY1>...
Page 67 Electrical Adjustment Group/ Item Name Function Initial Range Note Item 13 B-ReferH 1023/1023 0-1023 Scan Direction (Front/Rear) 14 B-ReferL 336/336 0-1023 Scan Direction (Front/Rear) 15 DXOutR 0-1023 16 DXOutG 0-1023 17 DXOutB 0-1023 18 H_Change_Pos 0-256 19 SH_Base 0-4095 20 NRG_Pos 0-128 21 NRG_Width 0-255...
Page 68 Electrical Adjustment Group/ Item Name Function Initial Range Note Item 81 R-Max 0-1023 82 G-Min 0-1023 83 G-Mid2 0-1023 84 G-Mid1 0-1023 85 G-Max 0-1023 86 B-Min 0-1023 87 B-Mid2 0-1023 88 B-Mid1 0-1023 89 B-Max 0-1023 90 H-OutPos 0-2047 91 OutAreaLv 0-1023 92 FlickerAdj...
Page 69 Electrical Adjustment Group/ Item Name Function Initial Range Note Item 150 R-DCOffset-P8 0-511 151 R-DCOffset-P9 0-511 152 R-DCOffset-P10 0-511 153 R-DCOffset-P11 0-511 154 R-DCOffset-P12 12/12 0-511 155 G-DCOffset-PGain 0-255 156 G-DCOffset-P1 501/501 0-511 157 G-DCOffset-P2 0-511 158 G-DCOffset-P3 0-511 159 G-DCOffset-P4 0-511 160 G-DCOffset-P5 0-511...
Page 70 0 - 20 Default set when the value is set to 10. 4 CABLE SW Long Cable 0 - 10 0:Disable (Sanyo Serial Command Eanble) 5 PW Debug Command Enable 0 - 1 1: Enable (PW Debug Mode) 0:Enable, 1:Disable...
Page 71 Electrical Adjustment Group/ Item Name Function Initial Range Note Item Luminance Level 11 Data for Dimmer: Dim 10 DIMMER_CTRL_LEVEL11 0 - 255 Level 11 at the less than the Value Luminance Level 12 Data for Dimmer: Dim 11 DIMMER_CTRL_LEVEL12 0 - 255 Level 12 at the less than the Value Luminance Level 13 Data for Dimmer: Dim 12 DIMMER_CTRL_LEVEL13...
Page 72 Electrical Adjustment Group/ Item Name Function Initial Range Note Item 4 Fan2 Manual Voltage * Effective only Fan Manual Switch = 1 0-255 5 Fan3 Manual Voltage 0-255 6 Fan4 Manual Voltage 0-255 Group 253 Fan Tem Error Setting (Memorized) Normal Ceiling Temp.
Page 73 Electrical Adjustment Group/ Item Name Function Initial Range Note Item Group 255 Fan Start/Cooling Setting 0 Fan1 Initial Volt 0-255 1 Fan2 Initial Volt 0-255 Fan Start Voltage (0.1V) 2 Fan3 Initial Volt 0-255 3 Fan4 Initial Volt 0-255 Cooling Time (x30sec) 8 Cooling Time 1-15 1:30sec 3:90sec 15:450sec...
Page 74 Electrical Adjustment Group/ Item Name Function Initial Range Note Item 1 Vertical Scaler V-Scaler Edit 0 - 200 2 Connect Link/Unlink Edit Selection 0 - 1 0: Unlinked Edit, 1: Linked Edit 3 Position Horizontal H-Position Compensation 0 - 200 4 Position Vertical V-Position Compensation 0 - 200...
Page 75 Electrical Adjustment Group/ Item Name Function Initial Range Note Item Group 523 YCbCr (575P) 0 Total Dots 0 ~ 4095 * Read only 1 Disp Dots 0 ~ 4095 2 H Back Porch 0 ~ 4095 3 V Back Porch 0 ~ 4095 4 Disp Line 0 ~ 4095...
Page 76 Electrical Adjustment Group/ Item Name Function Initial Range Note Item Group 544 RGB Video (720P - 60 ) 0 Total Dots 1650 0 ~ 4095 1 Disp Dots 1248 0 ~ 4095 2 H Back Porch 0 ~ 4095 3 V Back Porch 0 ~ 4095 4 Disp Line 0 ~ 4095...
Page 77 Electrical Adjustment Group/ Item Name Function Initial Range Note Item Group 565 HDCP (1080i - 50) 7 OverScan Over Scan Rate(0~25.5% : 0.1%Step) 0 ~ 255 8 VSBEG 0 ~ 15 Group 566 HDCP (1035i) 7 OverScan Over Scan Rate(0~25.5% : 0.1%Step) 0 ~ 255 8 VSBEG 0 ~ 15...
Page 78: Chassis Description
Chassis Description Chassis over view -78-...
Page 79: Input & Signal Processing Stage
Chassis Description Input & signal processing stage -79-...
Page 80: Lcd Drive Stage
Chassis Description LCD drive stage -80-...
Page 81: Audio Signal Processing Stage
Chassis Description Audio signal processing stage -81-...
Page 82: Lamp Control Stage
Chassis Description Lamp control stage -8-...
Page 83: Fan Control Stage
Chassis Description Fan control stage -83-...
Page 84: Motor Control Stage
Chassis Description Motor control stage -84-...
Page 85: Bus Control Stage
Chassis Description Bus control stage DVI-D DSub15 -85-...
Page 86: Led Drive & Rc Control Stage
Chassis Description LED drive & RC control stage -86-...
Page 87: Power Supply & Power Failure Circuit
Chassis Description Power supply & power failure circuit IC5601 DC-DC CONTROL -87-...
Page 88: Indicators And Projector Condition
Chassis Description Indicators and Projector Condition Check the indicators for projector condition. WARNING TEMP . indicator Indicators WArNING Projector condition PoWer LAMP teMP. green The projector is off. (The AC power cord is unplugged.) The projector is in stand-by mode. Press the ON/STAND-BY but- ton to turn on the projector. The projector is operating normally. The temperature inside the projector is abnormally high. The pro- jector cannot be turned on. When the projector is cooled down enough and the temperature returns to normal, the POWER in- dicator stops blinking and the projector can be turned on. (The WARNING TEMP. indicator keeps blinking.) Check and clean the filter.
Page 89 Chassis Description WARNING FILTER indicator Indicators WArNING Projector condition PoWer LAMP FILter green orange The filter is clogged. Stop using the projector immediately and clean or replace the filter (see below). The Filter counter reached a set time. Clean or replace the filter as soon as possible. If filter clogging is detected during operations, the Filter warning icon (red) appears on the screen and the WARN- ING FILTER indicator blinks orange, urging you to clean or replace the filter. Stop using the projector immediately Filter warning icon (red) appears on the screen and clean or replace the filter. The WARNING FILTER in- when the projector detects filter clogging. dicator and Filter warning icon will not be turned off until the filter is cleaned or replaced by a new one. LAMP REPLACE indicator Indicators LAMP Projector condition PoWer...
Page 90: Power Failure Detection System
Chassis Description Power failure detection system detection of Power failure Projector provides a protection circuit to prevent the secondary failure when the power failure, fans failure or tem- perature failure occurs on the projector. The power failure detection lines "P_FAIL_S5V", "P_FAIL_15V", etc. are con- nected to the main power supplies and fans. When the failure occurs, IC301<SYSTEM CONTROL> receives an error information through the power failure detection lines and turns off the signal "LAMP_DC_ON" output from pin 111 to stop the power supply. The power failure detection signals are sent to IC1801<I/O EXPANDER> and then sent to IC301<SYSTEM CON- TROL> . diagnosis Information of Power Failure Ic1801 detecting Signal Failure circuit/Parts P_FAIL_1.8V 1.8V, 1.V and peripheral circuit on the Main Board P_FAIL_S5V S5V, S1V, S9V and peripheral circuit on the Main Board P_FAIL_15V 15V, 5V and peripheral circuit on the Main Board P_FAIL_S1.V S 1.V and peripheral circuit on the Main Board P_FAIL_S-5V S -5V and peripheral circuit on the Main Board P_FAIL_PJ P J-Network Board and peripheral circuit on the Main Board FAN_SPEED Failure of Fan, FN901, FN90, FN903, FN904, FN905 connected to the Power(DC) Board...
Page 91: Power Failure Detection Tree
Chassis Description Power failure detection tree DETECTION LINE NAME ERROR INFO. IC4151 IC4161 3.3V_A 1.8V_A D4609 5V_SW D4608 IC4131 IC4141 3.3V_D 1.8V_D MAIN, 1.8/1.2V P_FAIL_1.8V 5V_SW IC1401 IC1411 3.3V 1.2V D4606 3.3V_SW 3.3V_SW IC8801 S5V_TEMP D8801 MAIN, S5/S9/S12V P_FAIL_S5V IC5111 S5V_AUDIO D5111 IC4891...
Page 92: Error History Log
Chassis Description Error History Log This projector provides the error history log function. To check the logs, you need to enter the service mode and select Group No. "0" and Item No. "0" to "49". The error code is displayed on the Data column. The description of the error code is listed on the table below. * H ow to enter the service mode and select the group, item and data value, see "Service Adjustment Menu Opera- tion". Group No. Item No. data (error code) (See table below) 0 <- Latest Error error Infomation error error code (See Powe Failure Detection Tree) Normal 1000 MAIN, 1,8/1.V 1001 MAIN, S-5V 100 FPGA, S1. 1003 MAIN, 15/9/5V 1004 MAIN, S5/S9/S1V 1005 PJ_N/AV, 3.3/S5V...
Page 93: Diagnosis Of Power Failure With Rs-3C Port
Chassis Description Diagnosis of Power Failure with RS-232C port This projector provides a function to get the error information of the projector by using the RS-3C serial port for the power failure diagnosis. The further error information of the power failure and fan failure can be found out by using this function. Diagnosis procedure Connect a RS-3C serial cross cable to SERIAL PORT IN on the projector and serial port on the PC. L aunch a communication software "Hyper terminal" provided with PC and setup the communication condition as follows; Baud rate : 1900 bps Parity check : none Stop bit Flow control : none Error Information Data bit (Signal Name) T urn on the projector. Check that the LED shows a power CR ALLPFAIL failure. (All the LEDs except LAMP LED are blinking) T ype a diagnosis command of the power failure “CR 000 MAIN, 1.8/1.2V ALLPFAIL” and press a "ENTER" key within 1 second on...
Page 94: Control Port Functions
Control Port Functions System Control I/O Port Functions (PW190) PORT NAME DESCRIPTION SIPD Sil169 Power Down, Power Down: L IN0VS V-Sync Input0 ZOOM+ Zoom Drive + 3.3V_SW_EX 3.3V Power Supply On/On Drive, Power On: H CHO_RXD UART 2 Receiver AUDIO MUTE Audio Mute, Mute On: H IN0HS H-Sync Inout0...
Page 95: Parallel I/O Expander Port Functions (Te7783)
Control Port Functions PORT NAME DESCRIPTION AD11 Scart Fast Blanking input XTAL27M Crystal oscillator AE10 RESET Reset AE11 Channel 1 VSync AE26 XTAL27M Crystal oscillator AF11 VSYNCIN2 Channel 0 VSync Parallel I/O Expander Port Functions (TE7783) PORT NAME DESCRIPTION DVss DVss DDC_SW1 DVI/HDC DDC Switch 1 Normal: L, Connect: H...
Page 96: Iic Bus D/A Converter Port Functions (M6334)
Control Port Functions PORT NAME DESCRIPTION AIN4 P-FAIL_15V 15V Power Failure Detection AIN5 P-FAIL_5V 5V Power Failure Detection AIN6 P-FAIL_PJ PJ-Net Power Failure Detection AIN7 THERM1 Temp Error Detection (Room) AIN8 THERM2 Temp Detection (TEMP C Blue Panel) AVdd33 AVdd33 DVdd33 DVdd33 XCS2...
Page 97: Waveform
Waveform VIdeo signal <VIdeo> HSYNc signal <Hout> VSYNc signal <Vout> HSYNc signal <HS1> VSYNc signal <VS1> r-S&H signal <tP35r> G-S&H signal <tP35G> B-S&H signal <tP35B> -97-...
Page 98: Cleaning
Cleaning After long periods of use, dust and other particles will accumulate on the LCD panel, prism, mirror, polarized glass, lens, etc., causing the picture to darken or color to blur. If this occurs, clean the inside of optical unit. Remove dust and other particles using air spray. If dirt cannot be removed by air spray, disassemble and clean the optical unit. cleaning with air spray disassembly cleaning 1. R emove the cabinet top following to “Mechanical Dis- Disassembly cleaning method should only be performed assemblies”. when the unit is considerable dirty and cannot be suf- . C lean up the LCD panel and polarizing plate by using ficiently cleaned by air spraying alone. Be sure to readjust the optical system after perform- the air spray from the cabinet top opening. ing disassembly cleaning.
Page 99: Ic Block Diagrams
IC Block Diagrams ● AD8074/AD78085 <Amp-SW, IC4001, IC5202> Ad8074 /Ad8075 dGNd out2 +1/+2 AGNd out1 +1/+2 AGNd out0 +1/+2 ● AN5870 <Signal Switch, IC5201> -99-...
Page 100 IC Block Diagrams ● BA6287 <Motor Drive Focus, Zoom, IC5501, IC5551> ● BA6920 <Motor Drive Lens Shift Up/Down, Left/Right, IC6501, IC6531> -100-...
Page 101 IC Block Diagrams ● BA7078 <Sync Seperator, IC5321> ● FA7711V <DC-DC Controller, IC5601> -101-...
Page 102 IC Block Diagrams ● HIN202EIB <RS-232C Driver, IC3801> ● L3E01060<Level Shift, IC2501, IC2531, IC3561> -10-...
Page 103 IC Block Diagrams ● L3E06150 <Sample&Hold, IC501, IC531, IC561> ● L3E07110 <Digital Gamma Shift & LCD Driver, IC401> -103-...
Page 104 IC Block Diagrams ● LM4889 <Audio Output, IC5121> ● NJW1141 <Audio Control, IC5001> -104-...
Page 105 IC Block Diagrams ● PW190 <Scan Converter & System Control, IC301> ● TE7783 <Parallel I/O Expander, IC1801> -105-...
Page 106: Electrical Parts List
MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Product safety should be considered when a component replacement is made in any area of a projector. Components indicated by a mark in this parts list and the circuit diagram show components whose value have special significance to product safety. It is particularly recommended that only parts specified on the following parts list be used for components replacement pointed out by the mark. ● read description in the parts list Read description in the Capacitor and Resistor as follows: cAPAcItor CERAMIC 100P K 50V Rated Voltage Tolerance Symbols: Less than 10pF A : Not specified B : ±0.1pF C : ±0.5pF D : ±0.5pF E : +0 -1pF F : ±1PF G : ±pF H : +0.1 -0pF L : +0 -0.1pF R : ±0.5 -0pF S : +0-0.5pF More than 10pF A : Not specified B : ±0.1% C : ±0.5% D : ±0.5% F : ±1%...
Page 107: Electrical Parts Location
MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Electrical Parts Location ● Assemblied Boards Main Board R/C Board Joint Board AV Board ● Out Of Circuit Board SW901 A903 Thermostat Power(DC) A901 FN902 Lamp Ballast Cooling Fan A902 (Exhust) Power(AC) FN901 TH902 Cooling Thermister(Panel)
Page 108: Electrical Parts List
MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Electrical Parts List Note: Parts order must contain Chassis No., Part No., and Descriptions. Key No. Part No. description Key No. Part No. description 305 163 1615 TR 2SC2812N-L6-TB0 305 173 9816 TR 2SC3928A1R ASSEMBLIED BOARDS 305 173 9915 TR 2SC3928A1S...
Page 109 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description 305 173 9816 TR 2SC3928A1R 305 014 4611 TR 2SC2412K T146 S 305 015 8727 TR 2SC2812-L6-TB 305 173 9915 TR 2SC3928A1S 305 015 8925 TR 2SC2812-L7-TB Q2858 305 134 5928...
Page 110 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description 305 163 1516 TR 2SA1179N-M6-TB 305 163 1615 TR 2SC2812N-L6-TB0 305 173 9816 TR 2SC3928A1R 305 173 9618 TR 2SA1235A1E 305 173 9915 TR 2SC3928A1S 305 173 9717 TR 2SA1235A1F...
Page 111 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description IC7821 310 337 0605 IC HD74LVC14T 305 014 4611 TR 2SC2412K T146 S 305 015 8727 TR 2SC2812-L6-TB 305 015 8925 TR 2SC2812-L7-TB For CHASSIS NO.
Page 112 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description 303 424 1510 ELECT 10.0U M C147 303 372 7510 CERAMIC 2.2U K 6.3V C148 303 372 7510 CERAMIC 2.2U K 6.3V C2534 303 409 3426 CERAMIC 0.1U K...
Page 113 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description C327 303 409 3426 CERAMIC 0.1U K C3124 303 409 3426 CERAMIC 0.1U K C3126 303 409 3426 CERAMIC 0.1U K C328 303 409 3426 CERAMIC 0.1U K C3127...
Page 114 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description C411 303 409 3426 CERAMIC 0.1U K C3557 303 276 3113 CERAMIC 33P J C3558 303 276 3113 CERAMIC 33P J C4111 303 409 3426 CERAMIC 0.1U K C412...
Page 115 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description 303 423 8916 ELECT 220U M C4606 303 391 5115 ELECT 100U M 303 296 9515 ELECT 100U M C513 303 367 0410 CERAMIC 0.1U K C4607...
Page 116 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description C5662 303 347 5510 POS-SOLID 470U M C5321 303 372 7510 CERAMIC 2.2U K 6.3V C5322 303 376 6311 CERAMIC 0.47U K C5663 303 409 3426 CERAMIC 0.1U K...
Page 117 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description C8841 303 276 3113 CERAMIC 33P J C7242 303 383 5215 CERAMIC 4.7U K 6.3V C7243 303 409 3426 CERAMIC 0.1U K C8842 303 276 3113 CERAMIC 33P J...
Page 118 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description R1857 301 225 0213 MT-GLAZE 3.3K JA 1/16W R1403 301 037 5017 MT-GLAZE 0.000 ZA 1/10W R141 301 225 8110 MT-GLAZE 10 JA 1/16W R1858 301 224 9019 MT-GLAZE...
Page 119 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description R3133 301 226 1516 MT-GLAZE 0.000 ZA 1/16W R2562 301 224 8814 MT-GLAZE 100 JA 1/16W R2563 301 224 8814 MT-GLAZE 100 JA 1/16W R3134 301 302 5414 MT-GLAZE...
Page 120 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description R511 301 224 8814 MT-GLAZE 100 JA 1/16W R413 301 225 1814 MT-GLAZE 47 JA 1/16W R4131 301 037 5017 MT-GLAZE 0.000 ZA 1/10W R5111 301 037 5017 MT-GLAZE...
Page 121 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description R5691 301 037 5017 MT-GLAZE 0.000 ZA 1/10W R5308 301 224 9316 MT-GLAZE 1K JA 1/16W R531 301 224 9316 MT-GLAZE 1K JA 1/16W R571 301 224 8814 MT-GLAZE...
Page 122 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description R8123 301 225 0213 MT-GLAZE 3.3K JA 1/16W R7258 301 224 8814 MT-GLAZE 100 JA 1/16W R7261 301 226 1516 MT-GLAZE 0.000 ZA 1/16W R8124 301 225 0213 MT-GLAZE...
Page 123 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description RB7203 945 036 3529 R-NETWORK 0X4 1/32W 945 049 0690 R-NETWORK 33X4 1/16W RB3108 645 049 0675 R-NETWORK 33X4 1/32W 945 037 0817 R-NETWORK 0X4 1/16W 945 049 0690...
Page 124 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description L5621 945 079 1469 INDUCTOR,10U M D5661 307 254 2716 DIODE CMS16 L5622 945 080 6828 INDUCTOR,3.3U M D5691 307 163 0414 DIODE 1SS352-(TPH3) L5641 945 079 1469 INDUCTOR,10U M...
Page 125 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description 305 173 9915 TR 2SC3928A1S IC5001 309 564 1519 IC NJW1141M Q2011 305 014 4512 TR 2SC2412K T146 R CAPACITOR 305 014 4611 TR 2SC2412K T146 S C2001 303 358 3215...
Page 126 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description R5033 301 150 6212 MT-GLAZE 1K JA 1/10W R2007 301 255 6513 MT-GLAZE 100 JA 1/10W R2011 301 260 4115 MT-GLAZE 75 JA 1/3W R5036 301 162 3612...
Page 127 SC4031 945 076 3503 SURGE-ABSORBER PACKING MATERIALS SC4032 945 076 3503 SURGE-ABSORBER SC4041 945 076 3503 SURGE-ABSORBER For Model PLC-XT25 SC4042 945 076 3503 SURGE-ABSORBER 610 331 3030 SPACER LNS PACKING MZ7A SC4061 945 076 3503 SURGE-ABSORBER 910 330 7351...
Page 128 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Electrical Parts List Key No. Part No. description Key No. Part No. description -18-...
Page 129: Mechanical Parts List
MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Mechanical Parts List Cabinet Parts Location -19-...
Page 130 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Mechanical Parts List optical engine_Lens shift assembly M01-3 M01-2 M01-1 L01-3 L01-1 L01-2 optical engine_Lens assembly condenser lens-out assembly relay lens-out assembly -130-...
Page 131 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Mechanical Parts List condenser lens-out assembly relay lens-out assembly -131-...
Page 132 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Mechanical Parts List Lcd panel / Prism assembly Green L02-4 L02-3 L02-2 L02-1 Blue Note: There are types of LCD panel/prism assembly, named Type-R and Type-L. When replacing the LCD panel/prism assembly, replace them with the same type. The type indication label is attached on top of the LCD panel/prism assembly as shown in the below. Indication of the Type LCD panel / Prism assembly -13-...
Page 133 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Mechanical Parts List Green polarized unit (IN) Blue polarized unit (IN) red polarized unit (IN) Polarized unit (IN) Note: tH902 Only the Blue panel assy provides TH90 and M09. L07: r L03: r Note: L08: G L04: G L03, L04 and L05 differ with parts according to L09: B L05: B type of LCD panel/prism assembly.
Page 134 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Mechanical Parts List In the Optical Unit -134-...
Page 135: Cabinet Parts Location
MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Mechanical Parts List Mechanical Parts List Note: Parts order must contain Chassis No., Part No., and Descriptions. Key No. Part No. description Key No. Part No. description CABINET PARTS L02-2 945 088 7575 POLARIZED GLASS(OUT/G) 910 330 7566 ASSY,STAND LEG-MZ7A L02-3 645 090 1942...
Page 136 SANYo electric co., Ltd. (MZ7A) Oct. 006 DC 350 Printed in Japan...
Page 137: Diagrams & Drawings
KC6-XT20L00 these schematic diagrams and printed wiring board drawings are part of the service manual original for chassis No. MZ7-Xt2500, MZ7-Xt25L00, Kc6-Xt2000, Kc6-Xt20L00 models PLc-Xt25/Xt25L, PLc-Xt20/Xt20L. File with the service manual No. SM5110811-00 Note: All the information of part numbers and values indicated on these diagrams are at the beginning of production.
Page 138: Parts Description And Reading In Schematic Diagram
MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Parts description and reading in schematic diagram 1. T he parts specification of resistors, capacitors and resistor reading coils are expressed in designated code. Please check Example 1 / D J 10K B the parts description by the following code table. . S ome of transistors and diodes are indicated in mark Characteristic for the substitution of parts name. Please check the Example 6 W K 8. Z (Carbon fuse) parts name by the following code table.
Page 139 MZ7-XT2500, MZ7-XT25L00, KC6-XT2000, KC6-XT20L00 Pin description of diode, transistor and IC ● diode ● transistor/Fet ● Ic...
Page 140: Note On Soldering
Note on Soldering do not use solder containing lead. Solder This product has been manufactured using lead-free Use solder with the metal content and composition ratio solder in order to help preserve the environment. by weight given in the table below. Do not use solders Because of this, be sure to use lead-free solder which do not meet these conditions. when carrying out repair work, and never use solder Metal content Tin (Sn) Silver (Ag) Copper (Cu)
Page 141 Schematic Diagrams LIMIT BOTTOM LIMIT CN-B LENS SENSOR LENS SHIFT UP/DOWN AC CORD PROJECTION LENS CN-C1 POWER A904 LENS SHIFT CN-C2 (FILTER) LEFT/RIGHT FOCUS ZOOM LAMP CN-A BALLAST SW901A 81L03K2R5 ZCNA&8K 1AA9CAYAF090Z SW901 R/C FRONT S40B0120N FRAME GND (SET TO OPEN AT 100+/-3*C) Z6B&6C A901 1AA9W03BC005M...
Page 142 INPUT 3 S5V_EXT K20A C2001 J31B06701 L2001 6.3KK10MB C2002 F34DH107G R2002 Q2001 K20A_7 ;6.3KK10BA KK0.1GQ 1/10GJ47KC R2007 VIDEO 1/10GJ100C R2003 R2001 R2004 VIDEO SC2001 1/10GJ56KC VIDEO 1/3GJ75 1/10GJ470C K20A_8 Z30B0220G R2006 1/10GJ1KC S-VIDEO K20A_5 S5V_EXT L2011 C2011 C2012 F34DH107G R2012 Q2011 K20A_4 KK0.1GQ...
Page 143 NETWORK C7239 6.3KK4.7GQ "K40F" C7241 C7242 C7238 JOINT 6.3KK4.7GQ 6.3KK4.7GQ 6.3KK4.7GQ "K30B" J10ES106G J11CYC00G TP8101 TP8102 TP8103 TP8104 TP8105 TP8106 TP8107 TP8108 J30B2140G J30B2140G J30B2140G J30B2140G J30B2140G J30B2140G J30B2140G J30B2140G SCREW103 8 9 10 TP8109 TP8110 TP8111 TP8112 TP8113 TP8114 TP8115 TP8116 TP8117...
Page 144 VIDEO R132 1/16GJ10A Q181 FROM K8S (FROM A/V) VIDEO C132 COMPOSIT VIDEO 6.3KK4.7GQ R182 1/16GJ1KA R136 1/16GJ10A Q182 C136 6.3KK4.7GQ R183 1/16GJ1KA S-5V FROM K8S (FROM A/V) R137 C137 S-VIDEO 1/16GJ10A 10KK0.47MN R138 1/16GJ1KA C138 R122 KK0.01MN IN0R[2-9] TO IC301(PW190) SCART_CV R133 1/10GZ0.0...
Page 145 BUS-SW IC1351 S3.3VPW TC7WBD125AFK S5VPW R1352 1/16GJ10KA R1354 R1353 R1351 1/16GJ10KA 1/16GJ3.3KA 1/16GJ3.3KA SCL2_S5V SCL2_S5V S3.3VPW R862 Q861 R861 1/16GJ3.3KA TO HDCP-ANALOG DDC 1/16GJ56KA S1.8VPW R882 SDA2_S5V RST_STATUS_IN SDA2_S5V C1351 C862 16KK0.1MN 10KK1MN DCLK IC3101 S3.3VPW DCLK IC861 S3.3VPW DIGITAL TC74LCX541FT 1/16GJ3.3KA C861...
Page 146 3:VSS POWER 1:VOUT 2:VIN POWER POWER POWER POWER D8801 THERMISTOR1 (DC) P-FAIL_S5V 1SS352G P-FAIL_S5V S5V_TEMP S3.3VPW (DC) (DC) (DC) IC8801 (DC) J10EG045G "K66J" R8801 TH901 XC6202P502M R8821 1/10GZ0.0 1/16GJ560KA S5V_TEMP K8E_1 "K66A" "K66B" "K66C" S5V_TEMP THERM1 "K66K" TO IC301(PW190) D8821 R8802 C8821 1/10GZ0.0...
Page 147 R3509 1/10GZ0.0 15V_PB 15V_PNL R2516 1/16GZ0A C3508 C3509 25EM101X 25KK1BB ;25EM101Z DB_DIRX DB_ENBY2 DB_FRP FROM IC401 DB_ENBY1 (7110) K35B DB_SHCLK DB_CLY J11EA365G DB_XFR DB_DY C3501 C515 LCCOM 16KK0.1MN 16KK0.1MN K35B35 VDDY R2517 C3502 C516 1/16GZ0A KK0.1GQ 16KK0.1MN C3511 K35B34 DIRY 3.3V 15V_PNL IRM_RST...
Page 148 NO DATA SCH_MZ7A...
Page 149 Printed Wiring Board Diagrams ! CAUTION This projector is isolated from AC line by using the internal converter transformer. Please pay attention to the following notes in servicing 1. D o not touch the part on hot side (primary circuit) or both parts on hot and cold r/c FroNt (SIde:B) r/c FroNt (SIde:A) sides (secondary circuit) at the same time. . Do not shorten the circuit between hot and cold sides. 3. T he grounding lead must be connected to the ground of the same circuit when measuring of voltages and waveforms. PARTS_SIDE A2821 MAIN “K8G” R2821 C2823 D2822 NetWorK JoINt (SIde:A) NetWorK JoINt (SIde:B) MAIN “K8S”...
Page 150 SP901 RC FRONT “K8A” THERMISTOR TH901 MAIN (SIde:A) IC5101 IC1821 R5113 IC5111 R2806 R2807 R8019 Q4621 R2803 R2804 R8018 R8017 R5112 C8006 R2816 R5102 C8141 R2852 R8134 R2851 C4638 C2811 K7201 R8821 R1887 R8132 R8822 C8821 C8131 L8004 R5101 R8133 R8131 R2862 C6801 R6813 R2868 SW6807...
Page 151 MAIN (SIde:B) NETWORK JOINT “K30B” AV “K40F” C5129 C5112 R1001 R1002 R1003 R1004 IC2801 R2802 R1006 R5626 R5624 R1007 R5623 C5624 Q5121 R1008 IC6561 R6536 R5627 C5623 R6564 R1009 C7238 C5123 R6533 R5124 R2812 R6538 R5628 Q5141 R5127 R5128 C5622 R5648 C5126 IC6501 C8034 C8036 C8033...
Page 152 AV (SIde:A) AV (SIde:B) R4051 L4003 L4002 L4001 C4004 C4006 C4007 C4002 C4008 L2054 C4009 R4007 L2062 MAIN Q2071 R5049 “K8R” D5046 R2074 R2076 Q5042 D5041 L2061 C5042 R5044 L2053 L2057 R5048 R5047 Q5046 L2091 R2097 R5046 D2092 R2096 L2093 C5011 D2097 R5036...

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Plc-xt20 Plc-xt25l Plc-xt20l

Sanyo PLC-XT25 Service Manual

1 Optical Axis Adjustment

2 Contrast Adjustment (Pol)

3 Contrast Adjustment (Wv)

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