Sanyo PLC-XU75 Service Manual
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Sanyo PLC-XU75 Service Manual

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SERVICE MANUAL

Product code
PLc-Xu78
PLc-Xu75
1 122 390 00
1 122 416 00
(KH3AC)
1 122 391 00
1 122 417 00
(LH3AC)
1 122 391 02
1 122 417 02
(LH3CC)
Multimedia Projector
Match the Chassis No. on the unit's back cover with the
Chassis No. in the Service Manual.
If the Original Version Service Manual Chassis No. does
not match the unit's, additional Service Literature is re-
quired. You must refer to "Notices" to the Original Service
Manual prior to servicing the unit.
(KZ3AC)
(LZ3AC)
(LZ3CC)
FILE NO.
Model No. PLc-Xu78
PLc-Xu75
U.S.A, Canada,
Europe, U.K, Asia
original Version
chassis No. KH3-Xu7800
KZ3-Xu7500
REFERENCE NO.
SM
5110874-00

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Summary of Contents for Sanyo PLC-XU75

  • Page 1: Service Manual

    FILE NO. SERVICE MANUAL Multimedia Projector Model No. PLc-Xu78 PLc-Xu75 U.S.A, Canada, Europe, U.K, Asia original Version chassis No. KH3-Xu7800 KZ3-Xu7500 Match the Chassis No. on the unit's back cover with the Chassis No. in the Service Manual. If the Original Version Service Manual Chassis No. does not match the unit’s, additional Service Literature is re-...

  • Page 2: Table Of Contents

    Contents SERVICE MANUAL ............1 IC Block Diagrams ............60 Contents ................  Electrical Parts List ............64 Safety Instructions ............3 Electrical Parts Location ........... 65 Safety Precautions ............. 3 Electrical Parts List ........... 66 Product Safety Notice ..........3 Mechanical Parts List ..........

  • 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.

  • Page 4: Specifications

    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, PAL-N High Definition TV Signal 480i, 480p, 575i, 575p, 720p, 1035i, and 1080i Scanning Frequency H-sync. 15 ~ 100 kHz, V-sync. 50 ~ 100 Hz optical Information Projection Image Size (Diagonal) Adjustable from 40" to 300" Projection Lens F 1.65 ~ 1.81 lens with f 22.5 ~ 27 mm with manual zoom and focus Throw Distance 4.6 - 41.3’ (1.4 m - 12.6 m) Projection Lamp PLC-XU75: 200W PLC-XU78: 220W Interface Video Input Jack RCA Type x 1 S-Videdo Input Jack Mini DIN 4 pin x 1 Audio Input Jacks RCA Type x 2 Computer Input 1/Component Input Terminal Anlaog RGB (Mini D-sub 15 pin) Terminal x 1 Computer Input 2/Monitor Output Terminal Anlaog RGB (Mini D-sub 15 pin) Terminal x 1 (In/Out switchable) Computer/ Component Audio Input Jack Mini Jack (stereo) x 1 Service Port Connector Mini DIN 8 pin x 1 Audio Output Jack Mini Jack (stereo) x 1 (Variable)

  • 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. Thermal switch There is the thermal switch (SW90) inside of the projector to detect the internal temperature rising abnormally.

  • Page 6: Warning Temperature And Power Failure Protection

    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.

  • Page 7: 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.

  • Page 8: Lamp Replacement

    Lamp Replacement Lamp replacement order rePLAceMeNt LAMP Type No. Parts No. WArNING: POA-LMP115 610 334 9565 - For continued safety, replace with a lamp assembly of the same type. - Allow the projector to cool for at least 45 minutes before you open the Screw Lamp Cover lamp cover.

  • Page 9: Mechanical Disassembly

    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 10 Mechanical Disassembly x Main Board, Filter Board removal (T3x6)x (M.5x8)x5 AV Panel Main board (M3x6)x (Mx4) Fig.2 -10-...
  • Page 11 Mechanical Disassembly c Fan (FN901, FN902, FN906) removal (T3x8)x (M.5x6) FN906 Lamp Duct Spacer Lamp Duct (M3x7.5) Speaker Bottom (M.5x8) Ballast socket FN90 FN901 Fig.3 -11-...
  • Page 12 Mechanical Disassembly v Ballast, Power Board, SW901, SW902 removal (M4x8) (T3x6)x3 (T3x6)x Thermal Switch Ballast Board (SW90) (T3x6)x Lamp Cover Switch (SW901) (M4x8) (T3x6)x Power Board (T3x6) Fig.4 -1-...
  • Page 13 Mechanical Disassembly b Filter Board, Optical Unit removal (T3x8)x6 Optical Unit (T3x8)x (M4x8) (M3x7.5) Filter Board Fig.5 -13-...
  • Page 14 n Fan (FN903, FN904, FN905) removal (T3x8) (T3x8)x3 (T3x30) Panel FN905 Duct Top FN904 (T3x30) Panel Duct Bottom FN903 Fig.6 -14-...

  • Page 15: Optical Parts Disassembly

    Optical Parts Disassembly Before taking this procedure, remove Cabinet Top , Cabinet Front and Main Board following to the “Mechanical Disas- sembly”. Disassembly requires a .0mm hex wrench. z Projection lens removal Note: When removing the projection lens, remove the optical unit from the cabinet bottom first. Optical Unit (M.5x8)x4 Projection Lens...
  • Page 16 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 side Polarized glass Fig.4 * Mount the polarized glasses as the film attached side comes to the prism side. -16-...
  • Page 17 Optical Pats Disassembly b LCD Panel/Prism Ass’y removal (M.5x4)x LCD Panel/ Prism Ass’y (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 18 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 Model PLC-XU78 -85G00 -86G00 L3P06X-85G00 L3P06X-86G00 1-B-1234A1 1-B-1234A1 Model PLC-XU75 -65G00 -66G00 L3P06X-65G00 L3P06X-66G00 1-B-1234A1 1-B-1234A1 G-LCD PANEL Fig.5-2 -18-...

  • Page 19: Optical Unit Top Removal

    Optical Pats Disassembly n Polarized glass-out, Pre-polarized glass removal (Mx) (Mx) (Green) Pre-Polarized Glass(G) Polarized Glass(G) (red) (Mx4) (Mx) Pre-Polarized Glass(B) Film (Blue) Fig.6 Polarized Glass(B) Polarized Glass(B) * Mount the polarized glasses as the film attached side comes to the LCD Film panel side.

  • Page 20: Locations And Directions

    Optical Parts Disassembly , Locations and Directions Parts Name When mounting or assembling the optical parts in the opti- Integrator lens (OUT) cal unit, the parts must be mounted in the specified loca- Prism beam splitter (PBS) tion and direction as shown in figure below. Condenser lens (OUT) Dichroic mirror (B) Dichroic mirror (G)

  • Page 21: Adjustments

    Adjustments Adjustments after Parts Replacement ● : Adjustment necessary ❍ : Check necessary disassembly / replaced Parts Polarized Glass Lcd/ Integrator relay Power Board Main Board Prism Ass’y Lens (out) Lens (out) Contrast Adjustment R-Contrast adjustment ● G-Contrast adjustment ● B-Contrast adjustment ● Integrator lens adjustment ❍...

  • Page 22: Optical Adjustments

    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.

  • Page 23: Integrator Lens Adjustment

    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...

  • Page 24: Relay Lens-Out Adjustment

    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...

  • Page 25: 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 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.

  • Page 26: Circuit Adjustments

    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. WArNING : uSe uV rAdIAtIoN eYe ANd SKIN ProtectIoN durING SerVIcING.

  • Page 27: Fan Control Adjustment

    Electrical Adjustments c Auto Calibration adjustment [PC] x Fan Control adjustment 1. Enter the service mode. 1. Enter the service mode. tPFANA . Receive the 16-step grey scale computer signal with . Connect a digital voltmeter to test point “ ”...
  • Page 28 Electrical Adjustments b Auto Calibration adjustment [Video] v Auto Calibration adjustment [Component] 1. Enter the service mode. 1. Enter the service mode. . Receive the 16-step grey scale composite video sig- . Receive the 16-step grey scale 480i-component sig- Video [Video] nal with mode.

  • Page 29: Common Center Adjustment

    n Common Center adjustment . 50% White adjustment [Video] 1. Enter the service mode. 1. Receive the 16-step grey scale composite video sig- Video . Receive the 50%-Whole Gray computer signal with nal with mode. computer1 [rGB] mode. . Enter the service mode. tP_G1 3.

  • Page 30: Test Points And Locations

    Electrical Adjustments Test Points and Locations MAIN BoArd -30-...

  • Page 31: Service Adjustment Data Table

    Group/ ITEM NAME FUNCTION INITIAL RANGE NOTE Item Group 0 AD Converter (PW190) PLC-XU78 : 128/120/128 0 ADC G-OFFSET PC / Component / SCART 0 - 255 *G Pedestal Manual Adjustment PLC-XU75 : 128/128/128 1 ADC R-OFFSET PC / Component / SCART 128/140/128 0 - 255 *R Pedestal Manual Adjustment 2 ADC B-OFFSET PC / Component / SCART 128/140/128 0 - 255 *B Pedestal Manual Adjustment PLC-XU78 : 50/50/50 3 ADC G-GAIN PC / Component / SCART 0 - 255...
  • Page 32 Electrical Adjustments Group/ ITEM NAME FUNCTION INITIAL RANGE NOTE Item 161 PostCoast YCbCr 720p 50Hz 0 - 63 162 PreCoast YCbCr 1080i 60Hz 0 - 63 163 PostCoast YCbCr 1080i 60Hz 0 - 63 164 PreCoast YCbCr 1080i 50Hz 0 - 63 165 PostCoast YCbCr 1080i 50Hz 0 - 63 166 PreCoast YCbCr 1035i 0 - 63 167 PostCoast YCbCr 1035i 0 - 63 180 PreCoast SCART 480i 0 - 63 181 PostCoast SCART 480i 0 - 63 182 PreCoast SCART 575i 0 - 63 183 PostCoast SCART 575i 0 - 63 Group 10...
  • Page 33 Electrical Adjustments 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> / <NSREGIONUV1> 0 - 1023 3 Noise Region 2 <NSREGIONY2> / <NSREGIONUV2> 0 - 1023 4 Noise Gain Level <NSFILTERY**> / <NSFILTERUV**> 0 - 255 Group 49 Noise Reduction (Time) Effective only for N.R L2 0 Noise Pixel Range <NSRANGEY> / <NSRANGEUV>...
  • Page 34 Electrical Adjustments Group/ ITEM NAME FUNCTION INITIAL RANGE NOTE Item 11 R-ReferH 992/992 0-1023 Scan Direction (Front/Rear) 12 R-ReferL 122/122 0-1023 Scan Direction (Front/Rear) 13 B-ReferH 992/992 0-1023 Scan Direction (Front/Rear) 14 B-ReferL 122/122 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...
  • Page 35 Electrical Adjustments Group/ ITEM NAME FUNCTION INITIAL RANGE NOTE Item 80 R-Mid1 0-1023 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...
  • Page 36 0-511 179 B-DCOffset-P11 0-511 180 B-DCOffset-P12 0 / 22 0-511 Scan Direction (Front/Rear) 181 ENBX-R 0-127 182 ENBX-G 0-127 183 ENBX-B 0-127 184 DXOutPos PLC-XU75 Group 100 Panel Service PCStandard/PCDynamic/PCReal/PCBlack- 0 G-SubGain 512/516/472/472/512/516/472/472 0-1023 Board/AVStandard/AVDynamic/AVCinema/ AVBlackBoard 1 R-SubGain 512/516/472/530/512/516/472/530 0-1023 2 B-SubGain 512/516/472/472/512/516/472/472 0-1023...
  • Page 37 Electrical Adjustments Group/ ITEM NAME FUNCTION INITIAL RANGE NOTE Item 26 REF_GateDur 0-1023 27 R-BasePos 0-15 28 G-BasePos 0-15 29 B-BasePos 0-15 30 RGB-Adjust Operation STEP=256[0<->256<->512<->768 31 RGB-AdjLv 0-1023 <->1023] 32 LineR0 0-255 (MIN<-->MAX Cyclic Operation) 33 LineR1 0-255 (MIN<-->MAX Cyclic Operation) 34 LineR2 0-255 (MIN<-->MAX Cyclic Operation) 35 LineR3 0-255...
  • Page 38 Electrical Adjustments Group/ ITEM NAME FUNCTION INITIAL RANGE NOTE Item 95 FrontCTalkR-Start 0-255 96 FrontCTalkR-End 0-255 97 FrontCTalkG-Cent 0-2047 98 FrontCTalkG-Start 0-255 99 FrontCTalkG-End 0-255 100 FrontCTalkB-Cent 0-2047 101 FrontCTalkB-Start 0-255 102 FrontCTalkB-End 0-255 103 R-DCOffset-NGain 0-255 Scan Direction (Front/Rear) 104 R-DCOffset-N1 511 / 511 0-511 105 R-DCOffset-N2...
  • Page 39 Link with No.15 19 G-CLXIN 0-255 Link with No.16 20 B-CLXIN 0-255 Link with No.17 21 R-ENBX1IN 0-255 22 G-ENBX1IN 0-255 23 B-ENBX1IN 0-255 PLC-XU75 Group101 : Panel Service(6150/1060) 0 R-LCCOM 0-511 *Common Center Adjustment 1 G-LCCOM 0-511 *Common Center Adjustment 2 B-LCCOM 0-511 *Common Center Adjustment 3 R-LCCOM-Gain 0-255 4 G-LCCOM-Gain...
  • Page 40 Electrical Adjustments Group/ ITEM NAME FUNCTION INITIAL RANGE NOTE Item 18 R-CLXIN 0-255 Link with No.15 19 G-CLXIN 0-255 Link with No.16 20 B-CLXIN 0-255 Link with No.17 21 R-ENBX1IN 0-255 22 G-ENBX1IN 0-255 23 B-ENBX1IN 0-255 Group 200 Option 0 Logo Prohibition (Forced No Brand) Logo Prohibition (0: Menu, 1: Forced, 2: 0 - 2 Effective after AC On China, 3-9: not used) 1 RS232C Baudrate Baud Rate 0 - 2...
  • Page 41 Group/ ITEM NAME FUNCTION INITIAL RANGE NOTE Item 1 Spread Spectrum Frequency 0 - 500 PLC-XU78 : 50 2 Spread Spectrum Amplitude 0 - 300 PLC-XU75 : 100 PLC-XU78 Group 210 LampContorl Luminance Level 1 Data for Dimmer: Dim 0 DIMMER_CTRL_LEVEL1 0 - 255 Level 1 at the less than the Value Luminance Level 2 Data for Dimmer: Dim 1 DIMMER_CTRL_LEVEL2 0 - 255 Level 2 at the less than the Value Luminance Level 3 Data for Dimmer: Dim 2 DIMMER_CTRL_LEVEL3 0 - 255 Level 3 at the less than the Value Luminance Level 4 Data for Dimmer: Dim 3 DIMMER_CTRL_LEVEL4 0 - 255 Level 4 at the less than the Value...
  • Page 42 Unit: 8bit(Raw Data) * Read only *Fon Control Adjustment Group 250 FAN Cntorol 0 FAN1 MIN ADJUST (DAC) 0 - 255 1 FAN1 MAX ADJUST (DAC) 0 - 255 DAC Output for Fan Adjust the tolerance of DAC and Fan Volage. PLC-XU78 : 36 2 FAN2 MIN ADJUST (DAC) 0 - 255 * Lamp mode is forced Eco PLC-XU75 : 10 3 FAN2 MAX ADJUST (DAC) 0 - 255 9999 4 Not used 9999 5 Not used 6 Not used 9999 9999 7 Not used Group 251 Not used Group 252 Fan Option...
  • Page 43 0-255 26 Not used 9999 9999 27 Not used 9999 9999 28 Not used 9999 9999 29 Not used 9999 9999 PLC-XU75 HiLand- HiLand- Group 254 Fan Control Range Setting (Temp./Voltage) Normal Ceiling Normal Ceiling 0 Not used 9999 1 Not used 9999 2 Not used 9999...
  • Page 44 Group/ ITEM NAME FUNCTION INITIAL RANGE NOTE Item 7 Not used 9999 8 Not used 9999 9 Not used 9999 10 Normal Fan Control Min Temp 20-100 Temp Senser Control Start/End Tem.p at Normal 11 Normal Fan Control Max Temp 20-100 12 Normal Fan1 Min 0-255 13 Normal Fan1 Max 0-255 Fan voltage value at Normal (unit: 0.1V) 14 Normal Fan2 Min 0-255 15 Normal Fan2 Max 0-255 16 Not used 9999 9999 17 Not used...
  • Page 45 Group/ ITEM NAME FUNCTION INITIAL RANGE NOTE Item 5 Image AREA V HIGHT Black/White Level Acquiring Area Height 0 - 4095 6 OFFSET target Target Value of Black Level Adj. 0 - 127 7 OFFSET torelance Torelance of Black Level Adj. 1 - 127 8 GAIN target Target Value of White Level Adj. 0 - 255 9 GAIN torelance Torelance of White Level Adj. 1 - 255 Group 262 Auto Calibration (CVBS/SVIDEO) 0 Y Image Area Start X Y Acquiring Area H-Start Position 0 - 1000 1 Y Image Area Start Y Y Acquiring Area V-Start Position 0 - 1000 6 Image Area H Width Image Level Acquiring Area...
  • Page 46 Group/ ITEM NAME FUNCTION INITIAL RANGE NOTE Item Group 501 Composite (PAL) Composite / S-Video * Read only 1 Disp Dots 0 ~ 4095 2 H Back Porch 0 ~ 4095 3 V Back Porch 0 ~ 4095 4 Disp Line 0 ~ 4095 Group 502 Composite (SECAM) Composite / S-Video * Read only 1 Disp Dots 0 ~ 4095 2 H Back Porch 0 ~ 4095 3 V Back Porch 0 ~ 4095...
  • Page 47 Group/ ITEM NAME FUNCTION INITIAL RANGE NOTE Item Group 526 YCbCr (1080i - 60) 0 Total Dots 2200 0 ~ 4095 * Read only 1 Disp Dots 1872 0 ~ 4095 2 H Back Porch 0 ~ 4095 3 V Back Porch 0 ~ 4095 4 Disp Line 1052 0 ~ 4095 Group 527 YCbCr (1080i - 50) 0 Total Dots 2640 0 ~ 4095 * Read only...
  • Page 48 Group/ ITEM NAME FUNCTION INITIAL RANGE NOTE Item 1 Disp Dots 1246 0 ~ 4095 2 H Back Porch 0 ~ 4095 3 V Back Porch 0 ~ 4095 4 Disp Line 0 ~ 4095 5 Clamp 0 ~ 255 * Read only 6 Clamp Width 0 ~ 255 * Read only Group 546 RGB Video (1080i - 60) 0 Total Dots 2200 0 ~ 4095 1 Disp Dots 1872 0 ~ 4095...

  • Page 49: Chassis Block Diagrams

    Chassis Block Diagrams Chassis over view TXD_PW/RXD_PW 124,388 IC5031 AUDIO OUTPIT <LM4889> IC5001 AUDIO CONTROL <NJW1156> AUDIO -49-...

  • Page 50: System Control

    Chassis Block Diagrams System control IC9883 INVERTER <HD74LVC14T> IC301 SYSTEM CONTROL -50-...

  • Page 51: Power Supply & Protection Circuit

    Chassis Block Diagrams Power supply & protection circuit IC641 POWER OSC. <STR-Z2156> IC621 P.F.CONTROL <FA5502> BLAST_AC FAN_ERR IC301 SYSTEM CONTROL -51-...

  • Page 52: Fan Control Circuit

    Chassis Block Diagrams Fan control circuit TPFANA FN905 Q7812 S16V FANA D3621 FN904 D3613 D3622 FN903 D3623 TPFANB FN901 Q7862 FANB D3624 FN906 D3614 Power-On:H Q7801 Q7811 IC7811 FAN_SW1 <FA7703> D3626 FN902 FAN_FEED1 Q7813 Q7864 D3627 FAN_FEED2 Q3601 P_FAIL P_FAIL P_Fail: H FAN_ERR SIGNAL/MODE...

  • Page 53: Troubleshooting

    Troubleshooting Indicators and Projector Condition Check the indicators for projector condition. Indicators LAMP Projector condition PoWer WArNING rePLAce red/green yellow The projector is off. (The AC power cord is unplugged.) The projector is preparing for stand-by or the projection lamp is being cooled down.

  • Page 54: No Power

    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.

  • Page 55: No Picture

    Troubleshooting No Picture check following steps. No picture with all of in- put 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.

  • Page 56: No Sound

    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. 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.

  • Page 57: System Control & I/O Port Functions (Ic301)

    System Control & I/O Port Functions (IC301) Pin No. Port No. Port Name Function Signal description PORTC5 ON_33V ON_33V PW3.3V/2.5V/1.8V PWR On/Off, On: H PORTD6 DDC_SW DDC_SW1 DDC mode Switch L: Normal H: Write mode PWM2 FAN_PWM1 FAN_PWM1 Fan Voltage Control (PWM ctl)　 PORTC6 ON_50A ON_50A Audio Circuit 12V/5V PWR On/Off, On: H PORTC1 SCS_PW SCS_PW 3-Wire enable PORTH1 TXD_PW TXD_PW External Serial Poet PWM3 FAN_PWM2...

  • Page 58: Waveform

    Waveform cVBS signal <VIdeo> HSYNc signal <GHS> VSYNc signal <VGS> HSYNc signal <dHS> VSYNc signal <dVS> r-S&H signal <tP_r1> G-S&H signal <tP_G1> B-S&H signal <tP_B1> -58-...

  • Page 59: 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.

  • Page 60: Ic Block Diagrams

    IC Block Diagrams ● FA5502 <P.F. Control, IC621> ● HIN202EIB <RS-232C Driver, IC3801> -60-...
  • Page 61 IC Block Diagrams ● L3E07110 <LCD Driver & Gamma Correction, IC401> ● L3E06150 <D/A, S/H-LCD Driver, IC501, IC531, IC561> -61-...
  • Page 62 IC Block Diagrams ● L3E01060 <Level Shift, IC2501, IC2531, IC2561> ● PW190 <Scaler, IC301> -6-...
  • Page 63 IC Block Diagrams ● LM4889 <Audio Output, IC5031> ● STR-Z2156<Power OSC, IC641> -63-...

  • Page 64: Electrical Parts List

    KH3-XU7800, KZ3-XU7500 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.

  • Page 65: Electrical Parts Location

    KH3-XU7800, KZ3-XU7500 Electrical Parts List Electrical Parts Location ● Assemblied Boards Main Board R/C Board Filter Board A901 Ballast Board Power Board ● Out Of Circuit Board SP901 FN906 Speaker Cooling Fan FN904 SW902 Cooling Fan Thermal Switch FN905 Cooling Fan FN903 FN902 Cooling Fan...

  • Page 66: Electrical Parts List

    KH3-XU7800, KZ3-XU7500 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 TRANSISTOR Q1001 305 014 4512 TR 2SC2412K T146 R ASSEMBLED BOARDS 305 014 4611 TR 2SC2412K T146 S 305 015 8727 TR 2SC2812-L6-TB...
  • Page 67 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description 305 015 8925 TR 2SC2812-L7-TB 305 163 1516 TR 2SA1179N-M6-TB 305 173 9618 TR 2SA1235A1E 305 163 1615 TR 2SC2812N-L6-TB0 305 173 9717 TR 2SA1235A1F 305 173 9816 TR 2SC3928A1R Q1061 305 134 5928...
  • Page 68 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description 305 015 8727 TR 2SC2812-L6-TB 305 015 8727 TR 2SC2812-L6-TB 305 015 8925 TR 2SC2812-L7-TB 305 015 8925 TR 2SC2812-L7-TB 305 163 1615 TR 2SC2812N-L6-TB0 305 163 1615 TR 2SC2812N-L6-TB0 305 173 9816 TR 2SC3928A1R...
  • Page 69 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description 305 173 9816 TR 2SC3928A1R IC9883 310 337 0605 IC HD74LVC14T 305 173 9915 TR 2SC3928A1S CAPACITOR Q6861 305 134 5928 TR 2SA1037AK-T146-R C1001 303 398 3312 ELECT 47U M 305 147 2218...
  • Page 70 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description 303 454 1610 CERAMIC 47P J 303 409 3426 CERAMIC 0.1U K C1871 303 433 1112 CERAMIC 1U K C301 303 453 8917 CERAMIC 0.1U K C2001 303 453 8610 CERAMIC...
  • Page 71 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description 303 454 0514 CERAMIC 0.1U Z 303 282 5118 CERAMIC 470P K C324 303 453 8917 CERAMIC 0.1U K C3502 403 461 3710 CERAMIC 0.1U Z 303 454 0514 CERAMIC 0.1U Z...
  • Page 72 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description C402 303 453 8917 CERAMIC 0.1U K C368 303 453 8917 CERAMIC 0.1U K 303 453 8610 CERAMIC 0.1U K 303 453 8610 CERAMIC 0.1U K 303 409 3426 CERAMIC 0.1U K...
  • Page 73 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description C5069 303 391 5511 ELECT 10U M 303 453 8610 CERAMIC 0.1U K 303 409 3426 CERAMIC 0.1U K 303 175 7212 ELECT 10U M C471 303 433 1112 CERAMIC 1U K...
  • Page 74 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description 303 409 3426 CERAMIC 0.1U K C5332 303 453 8917 CERAMIC 0.1U K 303 453 8610 CERAMIC 0.1U K C5621 303 453 8917 CERAMIC 0.1U K 303 453 8610 CERAMIC 0.1U K...
  • Page 75 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description RESISTOR C5705 303 376 3112 ELECT 100U M C5706 303 376 3112 ELECT 100U M R1001 301 260 4115 MT-GLAZE 75 JA 1/3W C5709 303 376 3112 ELECT 100U M R1002...
  • Page 76 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description R320 301 225 0817 MT-GLAZE 68K JA 1/16W R2016 301 225 3818 MT-GLAZE 1.5K JA 1/16W R2021 301 224 8814 MT-GLAZE 100 JA 1/16W R321 301 225 0213 MT-GLAZE 3.3K JA 1/16W R2022...
  • Page 77 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description R5213 301 224 8814 MT-GLAZE 100 JA 1/16W R391 301 224 9019 MT-GLAZE 10K JA 1/16W R392 301 224 8814 MT-GLAZE 100 JA 1/16W R5214 301 224 8814 MT-GLAZE 100 JA 1/16W R5215...
  • Page 78 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description RB2502 945 037 0817 R-NETWORK 0X4 1/16W R6801 301 225 0213 MT-GLAZE 3.3K JA 1/16W R6803 301 224 9019 MT-GLAZE 10K JA 1/16W RB2503 945 037 0817 R-NETWORK 0X4 1/16W R6804...
  • Page 79 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description L5614 945 041 1978 INDUCTOR,330 OHM L1012 945 068 8349 FILTER,EMI 400MHZ L1022 945 068 8349 FILTER,EMI 400MHZ L5661 945 040 6455 INDUCTOR,4.7U M L1031 945 068 8332 FILTER,EMI 200MHZ L5662 945 041 1978...
  • Page 80 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description 408 063 7507 ZENER DIODE MM3Z6V2B K20B 945 067 6124 TERMINAL,BOARD D4813 307 223 1115 ZENER DIODE 02DZ6.2Y(TPH3 952 001 7932 TERMINAL, BOARD 307 209 1214 ZD UDZS-TE-176.2B K30B 945 076 2742...
  • Page 81 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description 304 094 8202 CERAMIC 330P J C624 303 367 0410 CERAMIC 0.1U K 655 001 8571 ASSY,PWB,POWER KH3AC 304 091 2609 CERAMIC 0.1U K C625 303 367 0410 CERAMIC 0.1U K TRANSISTOR...
  • Page 82 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description R631 301 150 5918 MT-GLAZE 10K JA 1/10W D661 307 222 9607 DIODE FMB-2306 R632 301 256 3818 MT-GLAZE 1.5K JA 1/10W 307 202 9801 DIODE FMB-26L R633 301 162 3810 MT-GLAZE...
  • Page 83 KH3-XU7800, KZ3-XU7500 Electrical Parts List Key No. Part No. description Key No. Part No. description ACCESSORIES OWNER'S MANUAL 655 001 8687 SETUP INST MANUAL-KH3AC 610 334 7189 CD-ROM,OWNERS MANUAL-KH3AC REMOTE CONTROL 945 086 4965 ASSY,REMOCON CXVM 910 321 4482 RC-BATTERY LID-CXTJ AC CORD 645 093 3028 CORD,POWER-2.3MK,US...

  • Page 84: Mechanical Parts List

    KH3-XU7800, KZ3-XU7500 Mechanical Parts List Cabinet Parts Location c02-2 c02-1 -84-...

  • Page 85: Optical Parts Location

    KH3-XU7800, KZ3-XU7500 Mechanical Parts List Optical Parts Location Integrator Lens-In (Integrator-In) Relay Lens-Out (Relay-out) -85-...
  • Page 86 KH3-XU7800, KZ3-XU7500 Mechanical Parts List Polarized Glass-In (Polarized-in-R) (Polarized-in-G) (Polarized-in-B) Projection Lens (Projection) -86-...
  • Page 87 KH3-XU7800, KZ3-XU7500 Mechanical Parts List Prism/LCD Panel Assy (Green) L01-4 L01-2 (red) L01-5 L01-1 (Blue) L01-3 (Prism/LCD panel Ass'y) S04 S04 -87-...
  • Page 88 KH3-XU7800, KZ3-XU7500 Mechanical Parts List In the Optical Unit -88-...

  • Page 89: Mechanical Parts List

    FILTER F-KH3AC 610 334 8100 FILTER F-KH3AC 610 334 1835 PANEL AV-KH3AC 610 334 1835 PANEL AV-KH3AC 945 047 8032 BADGE,SANYO*26.2X5.7L26.0 945 047 8032 BADGE,SANYO*26.2X5.7L26.0 CHASSIS PARTS CHASSIS PARTS 610 334 8025 MTG DUCT PANEL TOP-KH3AC 610 334 8025 MTG DUCT PANEL TOP-KH3AC...
  • Page 90 SANYo electric co., Ltd. (KH3AC) Aug. 007 DC 350 Printed in Japan...

  • Page 91: Diagrams & Drawings

    KZ3-XU7500 these schematic diagrams and printed wiring board drawings are part of the service manual original for chassis No. KH3-Xu7800, KZ3-Xu7500 models PLc-Xu78, PLc-Xu75. File with the service manual No. SM5110874-00 Note: All the information of part numbers and values indicated on these diagrams are at the beginning of production.

  • Page 92: Parts Description And Reading In Schematic Diagram

    KH3-XU7800, KZ3-XU7500 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 93 KH3-XU7800, KZ3-XU7500 Pin description of diode, transistor and IC ● diode ● transistor/Fet ● Ic...

  • Page 94: 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.
  • Page 95 Schematic Diagrams TERMOSTAT_SW (SET TO OPEN AT 100°C) SW902 S10B5470N FILTER POWER FACTOR CORRECTION POWER C613 C615 AC100-120V 1000KK LF601 400GK DB611H 1000NH AC200-240V U20B30102 :1000KK1000LBZB :400GK1DV (LIVE) F601 L601 J10EM024N (LIVE) VA601 DB611H1 6.3A250VTS DB611 R601 F35B1010N LF601H1 DVXAVB007 D10XB60 K6A_1A K6A_1B...
  • Page 96 K10A TO IC301 P3 BJ11B0381N SC1001 L1002 K10A_1 C1004 R1001 F34DG407G K10A_6 16KK0.1MN IC301 D3601 1/3GJ75 D5601 1SS355 R1033 :16KK0.1AYH Q1001 R1002 :16KK0.1AXH 1/16GJ47A SYSTEM R5601 :1SS352G K10A_2 R5312 1/3GZ0 1/16GJ100A P_FAIL C5602 1/16GJ1KA CONTROL 16KK0.1MN K10A_3 C5603 :16KK0.1AYH 6.3EM473T R1040 C1008 Q5301...
  • Page 97 IC801 *See the part list. FLASH ROM S3.3VD_PW A[17] A[16] S3.3VD_PW A[15] R801 BYTE 1/16GJ10KA A[14] A[1] A[13] D[15] DQ15/A-1 A[12] D[7] D[0] D[8] A[11] D[14] D[1] D[9] DQ14 A[10] D[6] D[2] D[10] A[9] D[13] D[3] D[11] DQ13 A[20] D[5] D[4] A[21] D[12]...
  • Page 98 FAN_B FAN_A EXHAUST EXHAUST SIDE SIDE G-PANEL B-PANEL R-PANEL LAMP FN906 POWER FN904 FN903 FN905 FN901 FN902 J10EG J10EG J10EG J10EG 035G 036G J10EG J10EG 035G 035G 035G 035G K6L_3 C3626 K6M_3 K8P_3 K6K_3 K6J_3 K8N_3 FB3627 25KZ0.1AY L3BE221PG FB3623 S3.3V FB3626 FB3624...
  • Page 99 R438 1/16GZ0A R472 1/16GZ0A IRM_RST C471 10KK1MN R406 1/16GZ0A SDATA SDATA_PW R407 1/16GZ0A SCLK FROM IC301 P3 SCLK_PW R408 1/16GZ0A SCS_PW R436 K406 R437 J10ES126G 1/16GZ0A TO IC531 (S&H) DB[0-9] DIRXG RB483 DB[0] R1JA4704G DB[1] ENBX1G DB[2] DB[3] DXOUTG DB[4] CLXOUTG 3.3V DB[5]...
  • Page 100 DIRXR FRPR FROM IC401 SHCLKR C525 IC5701 XFRR PQ20WZ11 L501 L3530 L3BE221PG L3BE221PG 3.3V 15.5VR P_FAIL D5704 D5703 TP_R1 C5705 1SS355 1SS355 C519 C5704 C529 25EM1001X 25KZ0.1AY :1SS352G :1SS352G C524 16KK0.1MN 16KK0.1MN S16V NT15.5V 16EM101V :16KK0.1AYH 15.5VL :16KK0.1AXH :16KK0.1AYH :16KK0.1AXH R5701 C3504 1/16GF10KA...
  • Page 101 Printed Wiring Board Diagrams ! cAutIoN r/c (SIde:A) r/c (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.
  • Page 102 MAIN (SIde:A) LINe FILter ( SIde:A) LAMP BALLAST POWER FN903 UNIT FN905 “K6R” “K9D” RB2504 R2527 LAMP R2581 PB13 C2567 C2572 COVER C2569 IC2561 R2532 C2571 R2533 RB8259 F601A R2534 SW901 C2566 L4811 R510 C504 RB2561 C501 TP_B1 C9882 C562 R2004 FN901 VA601...
  • Page 103 MAIN (SIde:B) LINe FILter ( SIde:B) 1LG4B10W0050A.KH3AC B SIDE (2nd Reflow) C5706 C2574 C3566 R3563 C5705 R8821 R8822 L2561 C5025 C5028 C5026 Q7812 Q7862 C5007 C507 C5704 C508 C3505 R5705 C509 R2519 L501 R5701 C570 C3501 VA601 R2518 C510 C571 C3561 C511 C569...
  • Page 104 NO DATA PCB_KH3AC...

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