FILE NO. SERVICE MANUAL Multimedia Projector Model No. PRM-30A U .S.A, Canada, Europe, U.K, Asia Original Version Match the Chassis No. on the rating label on the projector with the Chassis No. in the Service Manual. I f the Original Version Service Manual Chassis No. does Chassis No. KJ8-30A00 not match the projector’s, additional Service Literature is required. You must refer to “Notices” to the Original Ser- vice Manual prior to servicing.
Contents SERVICE MANUAL ............1 Fan control circuit ............. 51 Multimedia Projector ............1 Troubleshooting ............5 Contents ................ Indicators and Projector Condition ......5 Safety Instructions ............3 No Power ..............53 Safety Precautions ............3 No Picture ..............54 Product Safety Notice ..........3 No Sound ..............55 Service Personnel Warning ........3 Control Port Functions ..........56 Specifications ..............4 Scaler I/O Port Functions (PW190) ......
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 per- sonnel injury, servicing should be made with qualified personnel. The following precautions must be observed. 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...
Specifications Mechanical Information Projector Type Multi-media Projector Dimensions (W x H x D) 16.93 x 5.69" x 15.04" ( 430 mm x 144.4 mm x 381.9 mm ) (Including Ceiling plate) Net Weight 12.52 lbs (5.68kg) (Including Ceiling plate) Panel Resolution LCD Panel System 0.59" TFT Active Matrix type, 3 panels Panel Resolution 1,280 x 800 dots Number of Pixels 3,072,000 (1,280 x 800 x 3 panels) Signal Compatibility Color System PAL, SECAM, NTSC, NTSC4.43, PAL-M, and PAL-N SD/HDTV Signal 480i, 480p, 575i, 575p, 720p, 1035i, and 1080i Scanning Frequency H-sync. 15 kHz-100 kHz, V-sync. 50-100 Hz Optical Information Projection Image Size (Diagonal) Adjustable from 60” to 110” Throw Distance 2.09’ - 3.93' (0.64 m - 119.7 cm) Projection Lens F 1.8 lens with f 6.68 mm with manual focus Projection Lamp 230W Interface Video Input Jack RCA Type x 1 S-Video Input Jack Mini DIN 4 pin x 1 Audio Input Jacks RCA Type x 2 Computer Input 1 / Component Input Terminal...
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 Lamp cover switch There is the thermal switch (SW90) inside of the projec- The lamp cover switch (SW901) cuts off the drive signal tor to detect the internal temperature rising abnormally. to the lamp circuit when the lamp cover is removed or When the internal temperature reaches near 85˚C, the not closed completely. After opening the lamp cover for thermal switch opens to stop the operation of the power replacing the lamp ass’y, place the lamp cover correctly supply circuit. otherwise the projector can not turn on. The thermal switch can be reset itself automatically when the internal temperature becomes normal. When the internal temperature reaches near 55˚C, the thermal switch returns automatically. Fuse A fuse is located inside of the projector. When the POW- Fuse Part No.: 323 021 7804 ER indicator is not lighting, the fuse may be opened. tYPe t6.3AH 250V FuSe Check the fuse as following steps.
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. Led indicator WARNING emit a red light the projector is shut down and the WARNING indicator 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 and the WARNING and POWER indicators start blinking. When the projector has cooled down enough (to its normal operating temperature), the POWER indicator stops blinking and lights red, The projector can be turned on again by pressing the POWER button. Note: The WARNING indicator continues to blink even after the temperature inside the projector returns to normal. When the projector is turned on again, the WARNING indicator stops blinking. Check items - Remove dust around the air filter. - Ventilation slots of the projector are blocked. In such an event, reposition the projector so that ventilation slots are not obstructed. - Check if projector is used at higher temperature place (Normal operating temperature is 5 to 35 ˚C or 41 to 95˚F) the projector is shut down and the WARNING indicator lights red. When the projector detects an abnormal condition, it is automatically shut down to protect the inside of the projector and the WARNING indicator lights red. In this case, unplug the AC power cord and reconnect it, and then turn the projector on once again to verify operation.
Maintenance Replacing the Filters Filter prevents dust from accumulating on the optical elements inside the projector. Should the filter 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 immedi- ately. Replace 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. Press 7 leftwards on the filter cover to release the latch Filter cover and open the filter cover. Pull out the filter. When taking out the filter, put your Latch fingers on the filter tab and then pull.
Maintenance Lamp Replacement When the projection lamp of the projector reaches its end top Panel of life, the Lamp replacement icon appears on the screen This indicator turns yellow and LAMP REPLACE indicator lights yellow. Replace the when the projection lamp lamp with a new one promptly. The timing when the LAMP reaches the end of its life.
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 REPLACE indicator stops lighting and the Lamp replacement icon disappears. Lamp counter reset Press the MENU button to display the On-Screen Menu. Use the Point ed buttons to select Setting and then press the Point 8 or the SeLeCt button. Use the Point ed buttons to select Lamp counter and then press the SeLeCt button. Use the Point ed buttons to select Lamp counter reset and then press SeLeCt button. Lamp replacement counter Reset? appears. Select Yes to continue.
Maintenance Cleaning the Projector Cleaning the Projection Lens Unplug the AC power cord before cleaning. Gently wipe the projection lens with a cleaning cloth that contains a small amount of non-abrasive camera lens cleaner, or use a lens cleaning paper or commercially avail- able air blower to clean the lens. Avoid using an excessive amount of cleaner. Abrasive cleaners, solvents, or other harsh chemicals might scratch the surface of the lens. Cleaning the Projector Cabinet Unplug the AC power cord before cleaning.
Security Function Notice This projector provides security functions such as "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. 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 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” Resetting procedure Turn the projector on (The PIN code entry window appears). Press and hold the 7 and 8 button on the remote control at the same time for more than 10 seconds. The PIN code and Logo PIN code will be reset to the factory initial code. (There is no response for the resetting.) Enter the initial PIN code for the PIN code lock. Please refer to the owner's manual for further information of the security functions.
Standby Mode Notice This projector provides types of standby mode, Eco standby and Network standby. According to the standby mode "Eco" or "Network", several functions are restricted as shown in the table below. To change the standby mode, use the projector's menu "Setting". Network .... S upply the power to the network function even after turning off the projector. You can turn on /off the projector via network, modify network environment, and receive an e-mail about projector status while the projector is powered off. Eco .... S elect "Eco" when you do not use the projector via network. The projector's network function will stop when turning off the projector. When "Eco" is selected, several functions will be restricted. Restricted Function in the standby mode Function Network Serial command control Network Function Monitor Out Audio Out direct On -1-...
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. z Filter Box and Terminal Cover removal 1. Slide the Filter Cover in the arrow direction and remove it. . Pull out the Filter Box. 3. R emove screws A (T3x10) and then press and hold hooks B on the Terminal Cover and pull it to remove. Bottom view Terminal Cover Filter Box Filter Cover...
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Mechanical Disassembly x AV Panel and Cabinet Top removal 1. Remove 5 screws A(M3x8) to remove the AV Panel. . R emove 3 screws B(T3x8), 1 screw C(T3x8), screws D(M3x8) and 1 screw E(T3x8) and 1 screw F(T3x8) to remove the Cabinet Top assy. 3. Loosen 1 screw G and remove the Lamp Cover in the arrow direction. 4. Remove screws H(T3x8) to remove the Shield Plate. Cabinet Top Lamp Cover Shield Plate AV Panel (Located on the center of the cabinet bottom.) Fig.2 -14-...
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Mechanical Disassembly c Main, Filter Boards and Lamp removal 1. R emove screws A(M4x6), screws B(T3x8), screws C(M.5x8) and remove the Main Board upward. . R emove screws D(M4x6) and screws E(T3x8) and remove the Filter Shield top. 3. R emove 1 screw F(M3x6) and screws G(T3x8) and remove the Filter Board upward off. 4. Loosen 3 screws H and pull the Lamp upward off. Main Board Lamp Filter Shield Isolation Sheet Filter Board Fig.3 -15-...
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Mechanical Disassembly v Power, Ballast Boards and Fans (FN906, FN907) removal 1. Remove 3 screws A(T3x8) to remove the Fans (FN906, FN907) Assy. . R emove 1 screw B(T3x8) to remove the Lamp Socket. Remove 3 screws C(T3x8) to remove the Lamp Cover Bottom. Unhook the ballast cable from the cabinet bottom. 3. R emove screws D(M4x6) and 3 screws E(T3x8). Disconnect the connectors "CN1" on the Ballast Board and "K6C" on the Power Board. Remove the Power Box Top upward off. 4. Remove 3 screws F(T3x8) to remove the Power Board. Power Box Top FN906 Power Board Lamp Socket Isolation Sheet FN907 Lamp Cover Bottom...
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Mechanical Disassembly b Optical Unit and Duct Assembly removal 1. Remove screws A(T3x8) to remove the Holder. . R emove screws B(T3x1) and 5 screws C(T3x8) and remove the Optical Unit upward off. 3. Remove 9 screws D(T3x8) and remove the Duct Ass'y upward off. Holder Optical Unit d d d Duct Ass'y T3x8 SW901 Lamp Cover Temp Sensor 1 Switch Fig.5 Board T3x1 Panel Duct Bottom FN904 FN90 FN901 FN903 T3x30 T3x1 T3x30 T3x30 T3x1 T3x30 -17-...
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Mechanical Disassembly n Fan (FN905), SW902, Temp Sensor 3, R/C Front Board removal 1. R emove screws A(T3x8) to remove the Duct Ass'y. Remove Fan (FN905) and Temp Sensor 3 Board. . R emove 1 screw B(T3x8) to remove the Theamal Switch Holder and Thermal Switch (SW90). 3. R emove screws C(T3x8) to remove the Lens Holder. Pull the R/C Front Board upward off. T3x8 Temp Sensor 3 Board Lens Holder SW90 T3x30 T3x30...
Optical Parts Disassembly Before taking this procedure, remove Terminal Cover, AV Panel, Cabinet Top and Main Board following to the “Me- chanical Disassembly”. Disassembly requires a .0mm hex wrench and a screwdriver. (T3x8)x z Projection lens removal Main Board Holder Note: T he Main Board Holder should be removed from the cabinet bottom before removing the projection lens. (M3x8)x4 Projection Lens Fig.1 x Condenser Out lens disassembly (M.5x6)x1 PBS (M3x14)x marker Lens Holder Top Lens Ass'y Light Mask PBS Integrator(Out) Light Mask Int Integrator(In) * R ugged sur- face is facing * R ugged surface to the lamp.
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Optical Parts Disassembly c Condenser Lens Ass'y disassembly (M.5x6)x (M.5x6) Condenser Lens(Out) Fig.3 v Polarized Glasses removal (M.5x6)x3 Polarized Glass(In/G) Polarized Glass(In/R) Polarized Glass(In/B) * P olarized glass is not re- moved from the mounting base. Fig.4 -0-...
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Optical Parts Disassembly b LCD Panel/Prism Ass'y removal Loosen screws A and 1 screws B and then pull the Panel/Prism Ass'y upward off. Note: T he Ceiling Plate should be removed from the cabinet bottom before removing the LCD Panel/Prism Ass'y. LCD Panel/Prism Ass'y Fig.5-1 Ceiling Plate (M5x16)x4 IMPORtANt NOtICe on LCd Panel/Prism Ass'y Replacement L CD 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. When replacing the LCD panel, should be replaced whole of the LCD panels and prism ass’y at once. When replacing the LCD Panel/Prism ass'y, take the optical and electrical adjustments following to the chapter "Adjustment". -1-...
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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" on the Electrical Ad- justment for the replaced LCD Panel/Prism Ass'y. The gamma-characteristics is different between L-Type and R-Type LCD Panel/Prism Ass'y. How to check the type of LCdPanel/Prism Ass'y Check the printed number on the flat cable of the G-LCD Panel. L-type LCd Panel/Prism Ass'y R-type LCd Panel/Prism Ass'y -85G10 -86G10 L3D05X-85G10 L3D05X-86G10 a01J6336L9 a01J6336L9 G-LCD PANEL Fig.5-2 --...
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Optical Parts Disassembly n Optical Unit Top removal Unhook 6 hooks to remove the Optical Unit Top. Optical Unit Top Fig.6 m Relay Lens(Out) Ass'y removal (M.5x5) Relay Lens(Out) Fig.7 -3-...
Optical Parts Disassembly m Locations and Directions Parts Name When mounting or assembling the optical parts in the optical Dichroic mirror (B) unit, the parts must be mounted in the specified location and Dichroic mirror (G) direction as shown in figure below. Condenser Lens (G) Relay Lens (IN) Mirror (R) Condenser Lens (R) Condenser Lens (B) Mirror (B) Marker Marker comes this side up Marker comes this side up Fig.8 -4-...
Optical Adjustments Before taking optical adjustments below, remove the Terminal Cover, AV Panel and Cabinet Top following to the “Mechanical Disassembly”. Adjustment require a .0mm hex wrench and a slot screwdriver. WARNING : uSe uV RAdIAtION eYe ANd SKIN PROteC- tION duRING SeRVICING CAutION: to prevent suffer of uV radiation, those adjust- ment must be completed within 25 minutes. Contrast adjustment [Before Adjustment] - Input a 100% of black raster signal. (Fig.1) L oosen a screw on the polarized glass mounting base which you intend to adjust.
Optical Adjustments Condenser lens (Out) adjustment T urn the projector on by a state of without FPC cables. Project all of lights on the screen. A djust the adjustment base of condenser lens out assy to make color uniformity in white. White 1) I f the shading appears on the left or right of the screen as shown Fig.2-1 , loosen 1 screw , and adjust the slot to make color uniformity in white by using a slot screwdriver. ) I f the shading appears on the top or bottom of the screen as shown Fig.2-2 , loosen screws , and adjust the slots to make color uniformity in white by using a slot screwdriver Tighten screws and to fix the condenser lens out unit. Note: The relay lens adjustment must be carried out after completing this ad- justment. Fig.2-1 Moving of Slot d White Fig.2-2 Moving of slot F...
Optical Adjustments Relay lens (Out) adjustment Turn the projector on by a state of without FPC cables. Project all of lights on the screen. A djust the adjustment base of relay lens assy to make color uniformity in white. Fig.3 I f the shading appears on the left or right of the screen as shown in loosen 1 screw by using a hex screwdriver, and adjust the slot to make color uniformity in white by using a slot screwdriver. Tighten the screw to fix the relay lens unit. White Fig.3 Moving of Slot H -8-...
Electrical Adjustments Service Adjustment Menu Operation to enter the service mode MeNu button To enter the “Service Mode”, press and hold the on the remote control for more than 0 seconds. The service menu appears on the Service Mode screen as follows. Input Computer 1 Group Data to adjust service data MeNu button +179 Select the adjustment group no. by pressing the (increase) SeLeCt button...
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Electrical Adjustments z Fan Voltages adjustment c PC Auto calibration Equipment Digital voltmeter Input mode Computer 1 (RGB) mode Input signal 16-step gray scale computer signal 1. Enter the service mode. . A djust the voltage on each test point by changing the 1. Enter the service mode. data values of the Group - No. . S elect Group "260", No. "0" and set data value "0" to "1". Group No. Test Point Adjustment value T he projector begins auto-calibration and then "OK" will appear on the screen. 250 - 0 4.5 ±0.1Vdc TPFANA 250 - 1...
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Electrical Adjustments PC, Video, Component Manual adjustment [2] Manual adjustment (Component) When the PC, Video or Component Auto Calibration fails, take the following manual adjustment instead of Input mode Computer 1 (Component) mode auto calibration. Input signal 1 6-step gray scale component signal (480i) [1] Manual adjustment (PC) - Pedestal adjustment Input mode Computer 1 (RGB) mode 1. Enter the service mode.
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Electrical Adjustments n Common Voltage adjustment White Balance adjustment [PC] Input mode Computer 1 (RGB) Input mode Computer 1 (RGB) mode Input signal 5 0%-RGB pattern computer signals Input signal 1 6-step gray scale or 50% white pat- or 16-step gray scale computer sig- tern computer signal 1. Enter the service mode. 1. Enter the service mode. . C hange data value to obtain the proper white balance. . S elect Group "100", No. "92" and then change data Group No. Adjustment value from "0" to "2" to reduce the panel frequency.
Electrical Adjustments 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 adjust- ment items indicated with “✻” are required to readjust following to the “Electrical adjustments”. Other items should be used with the initial data value. Group/ Item Name Function Initial Range Note Item Group 0 AD Converter (PW190) 0 ADC G-OFFSET PC / Component / SCART 128/120/128 0 - 255 * G-Pedestal Adjustment 1 ADC R-OFFSET PC / Component / SCART 128/140/128 0 - 255 * R-Pedestal Adjustment 2 ADC B-OFFSET PC / Component / SCART 128/140/128 0 - 255 * B-Pedestal Adjustment 3 ADC G-GAIN...
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Electrical Adjustments Group/ Item Name Function Initial Range Note Item 60 Language Default Setting 0 - 1 0: English (default) 1: Japanese 65 Audio Mute Link Video Mute Link 0 - 1 0: Link Off, 1: Link On (default) 70 P-RC Mode 0 - 1 0: P, 1: S Group 201 Option (signal) 0: FrameLockOFF at PC signal 0 FrameLock Option 0 - 1 1: FrameLockON at PC signal and 47Hz (Vfreq) ~ Panel frequency of input signal Reverse Processing of FLDINVSetting Value 0: Disable - Used FLDINV Setting Value 2 Field Sense Invert Enable 0 - 1 1: Enable - Used Reversed FLDINV Setting Value 0:Disable (Service Adjustment Dsiable, 4 Sub Image Enable 0 - 1...
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Electrical Adjustments Group/ Item Name Function Initial Range Note Item 27 Blue Average Level 28 SAT 29 Chroma Coefficient 0 - 255 30 cSatMin 0 - 255 31 cSatMax 0 - 255 32 wCoeMin 0 - 1000 33 wCoeMax 1000 0 - 1000 Group 230 VBI Slice Level 0 Generic Initial Slice Level 0 - 255 1 Generic High Level Threshold 0 - 255 2 Generic Low Level Threshold 0 - 255...
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Electrical Adjustments Group/ Item Name Function Initial Range Note Item 13 Normal Fan1 Max. 0 - 255 14 Normal Fan2 Min. 0 - 255 15 Normal Fan2 Max. 0 - 255 16 Normal Fan3 Min. 0 - 255 17 Normal Fan3 Max. 0 - 255 18 Not used 9999 19 Not used 9999 20 Eco Fan Control Min. Temp Fan Voltage at Eco (x0.1V) 20 - 100 21 Eco Fan Control Max. Temp 20 - 100 22 Eco Fan1 Min. 0 - 255 23 Eco Fan1 Max.
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Electrical Adjustments Group/ Item Name Function Initial Range Note Item 2 CB - OFFSET AREA H START CB - Offset Acquiring Area H-Start Position 0 - 1000 If not used: use Y's value 3 CB - OFFSET AREA V START CB - Offset Acquiring Area V-Start Position 0 - 1000 If not used: use Y's value 4 CR - OFFSET AREA H START CR - Offset Acquiring Area H-Start Position 0 - 1000 If not used: use Y's value 5 CR - OFFSET AREA V START CR - Offset Acquiring Area V-Start Position 0 - 1000 If not used: use Y's value 6 Y - GAIN AREA H START 0 - 1000 7 Y - GAIN AREA V START 0 - 1000 8 CB - GAIN AREA H START 0 - 1000 9 CB - GAIN AREA V START 0 - 1000 10 CR - GAIN AREA H START 0 - 1000...
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Electrical Adjustments Group/ Item Name Function Initial Range Note Item 4 Disp Line 0 ~ 4095 Group 520 YCbCr (480i) 0 Total Dots 0 ~ 4095 1 Disp Dots 0 ~ 4095 2 H Back Porch 0 ~ 4095 3 V Back Porch 0 ~ 4095 4 Disp Line 0 ~ 4095 Group 521 YCbCr (575i) 0 Total Dots 0 ~ 4095 1 Disp Dots 0 ~ 4095 2 H Back Porch 0 ~ 4095...
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Electrical Adjustments Group/ Item Name Function Initial Range Note Item 5 Clamp 0 ~ 255 6 Clamp Width 0 ~ 255 Group 542 RGB Video (480P) 0 Total Dots 0 ~ 4095 1 Disp Dots 0 ~ 4095 2 H Back Porch 0 ~ 4095 3 V Back Porch 0 ~ 4095 4 Disp Line 0 ~ 4095 5 Clamp 0 ~ 255 6 Clamp Width 0 ~ 255 Group 543 RGB Video (575P) 0 Total Dots...
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Electrical Adjustments Group/ Item Name Function Initial Range Note Item Group 564 HDCP (1080i-60) 7 Over Scan 0 - 255 8 VSBEG 0 - 15 Group 565 HDCP (1080i-50) 7 Over Scan 0 - 255 8 VSBEG 0 - 15 Group 566 HDCP (1035i-60) 7 Over Scan 0 - 255 8 VSBEG 0 - 15 Group 981 Color Shading Correction Ofset Value L/R 0 R-Max 0 / 0...
Troubleshooting Indicators and Projector Condition Check the indicators for projector condition. Indicators Projector Condition LAMP RE- POWER WARNING PLACE red/green yellow The projector is off. (The AC power cord is unplugged.) The projector is in stand-by mode. Press the ON/STAND-BY button to turn on the projector. The projector is operating normally. The projector is preparing for stand-by or the projection lamp is be- ing cooled down. The projector cannot be turned on until cooling is completed and the POWER indicator stops blinking. The projector is in the Power management mode. The temperature inside the projector is abnormally high. The projec- tor cannot be turned on. When the projector is cooled down enough and the temperature returns to normal, the POWER indicator stops blinking and the projector can be turned on. (The WARNING indicator keeps blinking.) The projector has been cooled down enough and the temperature returns to normal. When turning on the projector, the WARNING in- dicator stops blinking. The projector detects an abnormal condition and cannot be turned on. Unplug the AC power cord and plug it again to turn on the projec- tor. If the projector is turned off again, unplug the AC power cord and...
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. Check the power primary circuit and parts as follow; AC cord, F601 (Fuse), Power board, SW90 (Thermal sw.) ....short in normal S W90 opens when the surrounding temperature of the switch exceeds 85°C. - W hen the WARNING (red) and POWeR (red) indicators are blinking, the symptom indicates that the projector detected an abnormal temperature risen inside the projector. Check the air filters and remove the object near the intake and exhaust fan openings, and wait until the POWER indicator stops blinking, and then try to turn on the projector. T he internal temperature is monitored by sensor ICs, IC881 on the Main board and IC8811 on the Temp Sen- sor A board, IC8831 on the Temp Sensor C board. - W hen the WARNING indicator lights red, the symptom indicates that the projector detected an abnormality in the cooling fan operation or in the power supply secondary circuits. Check fan operation and power supply lines, and the driving signal status.
Troubleshooting No Picture Check following steps. No picture with all of in- put sources Check signal processing stage and LCD driving stage; C heck RGB S&H signals at test points TP35B, TP35G, TP35R. C heck power supply circuit 15.5V_PNL and peripheral circuit. C heck ICs IC501, IC531, IC561, IC401, IC301 and peripheral cir- cuits. No picture with PC1 [An- C heck IC4001 <Amplifier/Switch> and peripheral circuit. alog] input source only No picture with PC2 [Analog] input source Check IC301<Scaler> and peripheral circuit.
Troubleshooting No Sound Check following steps. Check if the audio sig- Check IC5001 and peripheral circuit. nal is observed at pins 7 Check 1V power supply. and 15 of IC5001. The Mute signal is output from pin 67 of IC 301<Scaler>. The OUT_ DET signal is sent from Audio Out terminal. Mute-On: H at pin 67 of IC301. Check Audio Out Terminal and peripheral circuit -55-...
Control Port Functions Scaler I/O Port Functions (PW190) PIN NO. PORT NO. FUNCTION SIGNAL NAME DESCRIPTION PW_UPDATE RXD_MCI Network RXD DDC_SW TXD_PW Serial Control TXD READY_LED LAMP_PWM Lamp Control SDATA_PW 3-Wired Serial Control Data DCLK Clock Output V Sync Output 2-Wire Serial Data 2 SDA2 IIC Bus Switch IC DAC, SoundIC[5V_SW] 2-Wire Serial Clock 1 SCL1 2-Wire Serial Data 0 SDA0 IIC Bus Temp Sensor [S3.3V] R/C_PW Remote Control Input ADC1 KEY1 Input/Select/Keystone...
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KJ8-30A00 Parts Location Diagrams ● In the optical unit CAUTION: Part must be placed in specified direction when replacing the optical parts. Please see “Optical Parts Disassembly” for further instructions. -66-...
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KJ8-30A00 Parts Location Diagrams ● Accessories (see accessories parts list) REMOTE CONTROL MANUALs CD-ROMs HDMI ASPECT VGA CABLE AC CORD -67-...
KJ8-30A00 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% G : ±% H : ±3% J : ±5% K : ±10%...
PRM-30A KJ8-30A00 these schematic diagrams and printed wiring board drawings are part of the service manual original for chassis No. KJ8-30A00 model PRM-30A. File with the service manual No. SM5111346-00 Note: All the information of part numbers and values indicated on these diagrams are at the beginning of production.
KJ8-30A00 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.
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KJ8-30A00 Pin description of diode, transistor and IC ● diode Diode K: Cathode A: Anode ● transistor/Fet Transistor/FET C: Collector D: Drain B: Base G: Gate Index E: Emitter S: Source C1 C2 C1 C2 ● IC (GND) RESET (IN) (OUT) Index Index...
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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)
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 POWeR (SIde:A) FILteR (SIde:A) 1. D o not touch the part on hot side (primary circuit) or both parts on hot and cold FILTER sides (secondary circuit) at the same time. POWER SW90 SW90 "K6B" . Do not shorten the circuit between hot and cold sides. "K6C" 3. T he grounding lead must be connected to the ground of the same circuit when measuring of voltages and waveforms.