FILE NO. SERVICE MANUAL Multimedia Projector Model No. PLc-Xu115 U.S.A, Canada, Europe, U.K, Asia original Version Chassis No. KF3-XU11500 Give complete “Chassis No.” for parts order or servicing, it is shown on the rating sheet on the cabinet on the projector.
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.
Specifications Mechanical Information Projector Type Multi-media Projector Dimensions (W x H x D) 334 mm x 78 mm x 6 mm (Not including adjustable feet) Net Weight 3.7 kg Feet Adjustment 0˚ to 8.9˚ Panel Resolution LCD Panel System 0.8” TFT Active Matrix type, 3 panels Panel Resolution 1,04 x 768 dots Number of Pixels...
Circuit Protections This projector provides the following circuit protections to operate in safety. If the abnormality occurs inside the pro- jector, it will automatically turn off by operating one of the following protection circuits. Thermal switch There is the thermal switch (SW90) inside of the projector to detect the internal temperature rising abnormally.
Circuit Protections Warning temperature and power failure protection The projector will be automatically turned off when the internal temperature of the projector is abnormally high, or the cooling fans stop spinning, or the power supplies in the projector are failed. - If the WARNING indicator is flashing, it may detect the abnormal temperature inside the projector.
Maintenance Cleaning the Filter Filters prevents dust from accumulating on the optical elements inside the projector. Should the filters become clogged with dust particles, it will reduce cooling fans’ effectiveness and may result in internal heat buildup and adversely affect the life of the projector. If a “Filter warning” icon appears on the screen, clean the filters immediately.
Maintenance Lamp Replacement When the projection lamp of the projector reaches its end of life, top control 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 LAMP rePLAce should light is depending on the lamp mode.
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.
Maintenance 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.
Security Function Notice Security Function Disable This projector provides security functions such as "Key lock", "PIN code lock" and "Logo PIN code lock". When the projector 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.
Mechanical Disassembly Mechanical disassembly should be made following procedures in numerical or- Screws Expression der. (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 original otherwise it may cause loss of performance and product safety.
Page 13
Mechanical Disassembly x Main Board, AV Board, Rear Panel and Fans removal 1. Remove the Main board. . Remove the Rear panel. 3. Remove AV board. 4. Remove fans (FN901, FN90). Main board Rear panel (M.5x6)x5 (T3x6)(Black)x AV board (M.5x6) (T3x6)x FN901 FN90...
Page 14
Mechanical Disassembly v Optical unit, NETWORK board, Temp., Line Filter board,Fans removal 1. Remove the Optical unit. . Remove the NETWORK board. 3. Remove Screw (T3x8) and 4 hooks on the duct and then remove the Duct. 4. Remove the Duct top. 5.
Page 15
Mechanical Disassembly b Power, Ballast, Lamp Cover Sw Board, Thermal Sw(SW902) removal 1. Remove the Power board. . Remove the Ballast board. 3. Remove the Lamp cover switch board and thermal switch (SW90). Isolation sheet ( sheet) (T3x6) Power board (T3x6)x Ballast board Lamp cover...
Optical Parts Disassembly Before taking this procedure, remove Cabinet Top , Cabinet Front and Main Board following to the “Mechanical Dis- assembly”. Disassembly requires a .0mm hex wrench. z Projection lens disassembly Note: The optical unit should be removed from the cabinet bottom before removing the projection lens. Optical unit Projection lens (M.5x8)x4...
Page 17
Optical Parts Disassembly c Relay lens disassembly (M.5x5)x Relay lens Ass'y Spring Relay lens Fig.3 v Polarized glass-in disassembly (M.5x5)x1 Polarized glass-in Ass'y Film sheet Polarized glass Hooks * Mount the polarized glass as the film at- tached side faces the Fig.4 prism side.
Page 18
Optical Parts Disassembly b LCD Panel/Prism Ass’y removal LCD Panel/ Prism Ass’y (M.5x4)x (M3x10) (Bottom side) Fig.5-1 IMPortANt NotIce on Lcd Panel/Prism ass'y replacement LCD panels used for this model can not be replaced separately. Do not disassemble the LCD Panel/Prism Ass’y. These LCD panels are installed with precision at the factory.
Page 19
Optical Parts Disassembly Panel Type Check There are types of LCD Panel/Prism Ass'y for this model. Either L-Type or R-Type LCD Panel/Prism Ass'y is used on the projector. Check which type of LCD Panel/Prism Ass'y is used with the figure below. When replacing the LCD Panel/Prism Ass'y, you need to take "Panel Type Check and Setting"...
Optical Parts Disassembly n Polarized glass, Pre-polarized glass removal * Mount the polarized glasses as the film attached side faces the LCD panel side. (Mx) (Green) Pre-Polarized Glass(G) Polarized Glass(G) (red) (Mx) Pre-Polarized Glass(B) Film Polarized Glass(R) Polarized Glass(B) Fig.6 (Blue) m Optical unit top removal 1.
Optical Parts Disassembly , Locations and Directions Parts Name When mounting or assembling the optical parts in the opti- cal unit, the parts must be mounted in the specified loca- Integrator lens (OUT) tion and direction as shown in figure below. Prism beam splitter (PBS) Condenser lens (OUT) Dichroic mirror (B)
Optical Adjustments Before taking optical adjustments below, remove the Cabinet Top following to the “Mechanical Disassembly”. Adjustments require a .0mm hex wrench and a slot screwdriver. When you adjust Integrator lens or Relay lens adjustment, you need to disconnect FPC cables of LCD panels on the main board. Optical adjustment requires a .0mm hex wrench and a slot screwdriver.
Optical Adjustments Integrator lens adjustment Turn the projector on by a state of without FPC cables. Project all of lights on the screen. Adjust the adjustment base of integrator lens assy to make color uniformity in white. 1) If the shading appears on the left or right of the screen as shown White Fig.2-1 , loosen 1 screw...
Optical Adjustments Relay lens-Out adjustment Turn the projector on by a state of without FPC cables. Project all of lights on the screen. Adjust the adjustment base of relay lens assy to make color unifor- mity in white. If the shading appears on the left or right of the screen as shown in White Fig.3 , loosen 1 screw...
Electrical Adjustments Service Adjustment Menu Operation to enter the service mode MeNu SeLect button To enter the “Service Mode”, press and hold the 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.
Electrical Adjustments Circuit Adjustments CAUTION: The 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. Before adjustment, please turn on the projector more than ten minutes. WArNING : uSe uV rAdIAtIoN eYe ANd SKIN ProtectIoN durING SerVIcING.
Page 28
Electrical Adjustments Gain adjustment [Pc] x Panel Type Check and Setting 1. Enter the service mode. * Before setting, you need to check which type of LCD pan- . Receive the 16-step grey scale computer signal with computer2 [rGB] el is placed on the projector according to the item "LCD mode.
Electrical Adjustments Gain adjustment [component] n Common Center adjustment 1. Enter the service mode. 1. Enter the service mode. . Receive the 16-step grey scale computer signal with computer2 [component] . Receive the 50%-Whole Gray computer signal with mode. tP_G1 computer2 [rGB] mode.
Electrical Adjustments . 50% White adjustment [Video] ⁄1 Keystone Offset adjustment 1. Enter the service mode. After replacing the G-sensor circuit (IC3851, IC180 . Receive the 16-step grey scale composite video sig- and peripheral circuit), readjust the Keystone Offset Video[Video] nal with mode.
Electrical Adjustments These initial values are the reference data written from the Service Adjustment Data Table CPU ROM to memory IC when replaced new memory IC. The adjustment items indicated with “✻” are required to readjust following to the “Electrical adjustments”. Other items should be used with the initial data value.
Page 34
Electrical Adjustments Group/ Item Name Function Initial range Note Item Motion Adaptive Weight <KDEINT> 0 - 55 Value 0 : Conservative <====> 4 : 1 Angle Interpolation Level 0 - 4 Aggressive CUE Low Pass Filter Enable <CUELPFEN> 0 - 1 Group deinterlacer setting Effective only for Progressive ON-L mode.
Page 35
Electrical Adjustments Group/ Item Name Function Initial range Note Item Film Detection Sensitivity 1 Video Motion Sensitivity 1 - 5 <VOFSTVT> Video Motion Threshold Low <VOFTHRDA> 0 - 3767 Video Motion Threshold <VOFTHRDB> 0 - 3767 High 4 Global Motion Threshold <GMDTHRD>...
Page 40
Electrical Adjustments Group/ Item Name Function Initial range Note Item 55 Motor Disable Motors Disable 0 - 1 0: On, 1: Off 56 Menu Position Move menu (X asis) 0 - 104 57 Menu Position Move menu (Y asis) 0 - 104 58 Lamp Go Out 0 - 1 59 Souce Search Enable...
Page 41
Electrical Adjustments Group/ Item Name Function Initial range Note Item Luminance Level 14 Data for 13 DIMMER_CTRL_LEVEL14 Dimmer: Dim Level 14 at the less 0 - 55 than the Value Luminance Level 15 Data for 14 DIMMER_CTRL_LEVEL15 Dimmer: Dim Level 15 at the less 0 - 55 than the Value Luminance Data Avarage Point for...
Page 42
Electrical Adjustments Group/ Item Name Function Initial range Note Item Temp. A to judge the Temp Error at 10 Temp A Warning (Eco) 30-100 Eco (Room) Temp. B to judge the Temp Error at 11 Temp B Warning (Eco) 30-100 Eco (Panel) Temp.
Page 43
Electrical Adjustments Group/ Item Name Function Initial range Note Item 7 Not used 9999 Cooling Time stting at Fan Mode L1 (x 8 Cooling Time L1 30 sec) 1-15 1: 30, 3: 90, 15: 450 sec. Cooling Time stting at Fan Mode L (x 9 Cooling Time L 30 sec) 1-15...
Page 44
Electrical Adjustments Group/ Item Name Function Initial range Note Item 7 Image Area V Hight Image Level Acquiring Area Height 0 - 4095 8 Y Target Level Target Value of Y Level Adj. 0 - 55 11 Gain Tolerance Torelance of Level Adj. 0 - 55 1 Delta Gain Deviation Width of Gain Value...
Page 45
Electrical Adjustments Group/ Item Name Function Initial range Note Item 4 Disp Line 0 ~ 4095 Group composite (PAL) composite / S-Video 1 Disp Dots 0 ~ 4095 H Back Porch 0 ~ 4095 3 V Back Porch 0 ~ 4095 4 Disp Line 0 ~ 4095 Group...
Page 46
Electrical Adjustments Group/ Item Name Function Initial range Note Item Group Ycbcr (1080i - 60) 0 Total Dots 00 0 ~ 4095 * Read only 1 Disp Dots 187 0 ~ 4095 H Back Porch 0 ~ 4095 3 V Back Porch 0 ~ 4095 4 Disp Line 105...
Page 47
Electrical Adjustments Group/ Item Name Function Initial range Note Item 0 Total Dots 1980 0 ~ 4095 1 Disp Dots 146 0 ~ 4095 H Back Porch 0 ~ 4095 3 V Back Porch 0 ~ 4095 4 Disp Line 0 ~ 4095 5 Clamp 0 ~ 55...
Troubleshooting Indicators and Projector Condition Check the indicators for projector condition. Indicators Projector condition LAMP WARNING POWER REPLACE red/green yellow The projector is off. (The AC power cord is unplugged.) The projector is in stand-by mode. Press the POWER ON/STAND- BY button to turn on the projector.
Troubleshooting No Power This projector provides a function which can be specified a defective area simply by indicating the LEDs. Connect the AC cord and press the Power button once and then check the LED indication. - When all of LED indicators are not lighting, the symptom indicates that the primary power supply circuit does not operate properly.
Troubleshooting No Picture Check following steps. No picture with all of input sources Check signal processing stage and LCD driving stage; Check RGB S&H signals at test points TP_B1, TP_G1, TP_R1. Check power supply circuit 15.5V and peripheral circuit. Check ICs IC501, IC531, IC561, IC501, IC531, IC561, IC401, IC301 and peripheral circuits.
Troubleshooting No Sound Check following steps. check if the audio sig- Check IC5001 and peripheral circuit. nal is observed at pins 7 Check 5V_AUDIO, 1V power supply. and 15 of Ic5001. check if the audio sig- Check IC5031, 5V_AUDIO and peripheral circuit. nal is observed at pins 5 Check the Mute signal at pin 1 of IC5031.
Control Port Functions Scaler I/O Port Functions (PW190) Port SIGNAL Port NAMe FuNctIoN deScrIPtIoN NAMe PORTD7 DDC_SW3 DDC_SW3 DDC_SW3 VS_MCI V-Sync for MCI VS_MCI V-Sync. Input for MCI PORTC5 ON_3.3V 3.3V Power Drive, Power On: H PORTD6 DDC_SW1 DDC_SW1 DDC_SW1 HS_MCI HS_MCI H-Sync.
Page 62
Control Port Functions Port SIGNAL Port NAMe FuNctIoN deScrIPtIoN NAMe CR_IN CR_IN Compornent Video (CR) Input SCART_CV SCART_CV Composite Video Signal Input for SCART S-Y Signal Input Y_IN Y_IN Compornent Video (Y) Input SMUXIN1 SOG MUX input Ch1 Sync on Green Signal Input SMUXIN0 SOG MUX input Ch0 Y_IN...
Control Port Functions I/O Expander Port Functions (TE7783) PIN No. NAMe FuNctIoN ActIoN LEDN W_R/C_SW L: Wired R/C WAKEUP WAKEUP REST X'TAL IN X'TAL OUT XSTDBYEN XSTDBYE MCI_ON H: MCI ON POWER_ON_MCI H: MCI ON USB_VBUS USB_D- AIN1 P_FAIL_MCI Fpower Fail SIgnal Input for MCI Circuit AIN7 G-Sensor Input AIN8...
Waveform VIdeo signal <VIdeo> HSYNc signal VSYNc signal HSYNc signal <tPdHS> VSYNc signal <tPdVS> r-S&H signal <tP_r1> G-S&H signal <tP_G1> B-S&H signal <tP_B1> -64-...
KF3-XBU11500 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.
KF3-XBU11500 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 305 173 9816 TR 2SC3928A1R ASSEMBLED BOARD 305 173 9915 TR 2SC3928A1S Q681 305 014 4512 TR 2SC2412K T146 R...
Page 75
KF3-XU11500 Electrical Parts List Key No. Part No. description Key No. Part No. description R673 301 162 3711 MT-GLAZE 4.7K JA 1/10W C659 303 157 6813 CERAMIC 680P K R674 301 256 2613 MT-GLAZE 2.4K JA 1/10W 304 091 4900 CERAMIC 680P K R679...
Diagrams & Drawings Schematic Diagrams Printed Wiring Board Drawings Model Chassis No. PLC-XU115 KF3-XU11500 these schematic diagrams and printed wiring board drawings are part of the service manual original for chassis No. KF3-Xu11500, model PLc- Xu115.File with the service manual No. SM5110954-00...
KF3-XU11500 Parts description and reading in schematic diagram 1. The 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. .
Page 111
KF3-XU11500 Pin description of diode, transistor and IC ● diode ● transistor/Fet ● Ic...
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.
Printed Wiring Board Diagrams ! cAutIoN LINe FILter ( SIde:A) LINe FILter (SIde:B) This projector is isolated from AC line by using the internal converter transformer. Please pay attention to the following notes in servicing 1. Do not touch the part on hot side (primary circuit) or both parts on hot and cold sides (secondary circuit) at the same time.