JVC HD-56FH97 - 56" Rear Projection TV, Service Manual

Page 1: ... Limited No YA409 2006 9 D ILA PROJECTION TELEVISION YA409 2006 9 HD 56FH97 HD 56FN97 HD 61FH97 HD 61FN97 TABLE OF CONTENTS 1 PRECAUTION 1 3 2 SPECIFIC SERVICE INSTRUCTIONS 1 7 3 DISASSEMBLY 1 10 4 ADJUSTMENT 1 24 5 TROUBLESHOOTING 1 32 BASIC CHASSIS RA2 ...

Page 2: ...TSC DIGITAL CABLE IN F type connector 75Ω unbalanced coaxial 2 Video Audio Input INPUT 1 2 3 4 Component Video INPUT 1 2 1125i 750p 525p 525i S Video INPUT 1 3 Video Audio RCA pin jack 6 Y 1V p p Sync signal 0 35V p p 3 value sync 75 Ω Pb Pr 0 35V p p 75 Ω Y 1V p p positive Negative sync provided 75 Ω Pb Pr 0 7V p p 75 Ω Mini DIN 4 pin 2 Y 1V p p positive Negative sync provided 75 Ω C 0 286V p p B...

Page 3: ...ts that indicate evidence of overheating should be replaced Always use the manufacturer s replacement components 6 Isolation Check Safety for Electrical Shock Hazard After re assembling the product always perform an isolation check on the exposed metal parts of the cabinet antenna terminals video audio input and output terminals Control knobs metal cabinet screw heads earphone jack control shafts ...

Page 4: ...t during operation Ensure that sufficient space is available around the TV to allow satisfactory cooling 1 3 LAMP UNIT HANDLING CAUTION 1 3 1 PRECAUTION FOR LAMP UNIT The lamp emits high intensity white ultraviolet and infrared light Do not look directly at the light during service Also do not touch the lamp directly as it presents a burn hazard Handle with extra care This lamp emits high heat and...

Page 5: ... TIMER Refer to the USERS GUIDE for a detailed operating description 1 Press the MENU key to select CLOCK TIMERS 2 Select the LAMP TIMER RESET with keys 3 Enter the LAMP TIMER RESET mode the following message will appears 4 Press the OK key while the above message appears on the screen 5 The lamp timer has now been reset and the following message will appear 1 3 6 PRECAUTION FOR REPLACEMENT Do not...

Page 6: ...nce projection adjustment are required 1 5 SCREEN HANDLING CAUTIONS 1 5 1 SCREEN STORAGE Store the SCREEN ASS Y in a standing position in order to avoid deformation If the screen is stored horizontally there is risk of deforming the screen face When necessary to place the SCREEN ASS Y horizontally position the screen side upwards and sure to place spacers between the screen and resting site floor ...

Page 7: ...to a healthy program MTS STEREO The voice multiplex function of the MTS system is built in MTS Multi channel Television Sound system MPEG Noise Reduction This function effects the block noise removal and mosquito NR simultaneously MaxxBass This function emphasizes the bass sound A H S Adds a more spacious surround sound Music gives basic effect and movie for more effect VOICE ENHANCEMENT Gives a c...

Page 8: ...atio 5000 1 Aperture ratio 89 or more Effective pixel measurement 0 7 inch R DEVICE G DEVICE OPTICAL IRIS B DEVICE Lamp unit Incident light Device B RG B B R G R Projection light G Mirror Mirror Mirror FRONT DEVICE UNIT SECTION TOP VIEW Device Device Incident light Pixel FRONT Incident light Projection light Glass substrate Transparent electrode Reflective pixel electrode Back Plane Liquid crystal...

Page 9: ...2 RTS2 O Not used 77 NC O Not used 28 CLK2 O Not used 78 NC O Not used 29 RxD2 I Digital tuner control 79 NC O Not used 30 TxD2 O Digital tuner control 80 P1 0 O Not used Function LED lighting 31 SDA2 I O Not used 81 P0 7 O Not used Communication LED lighting 32 DIGR1 O R 1 for OSD 82 P0 6 O Test point 33 DIGG1 O G 1 for OSD 83 NC O Not used 34 DIGB1 O B 1 for OSD 84 WAKE O Reset for sub chassis C...

Page 10: ...ove the 2 screws C 2 Remove the CENTER COVER 3 1 1 4 REMOVING THE FRONT PANEL WITH SCREEN ASS Y Fig 1 Remove the SPEAKER GRILL 1 Remove the 8 screws D 2 Remove the 10 screws E 3 Remove the FRONT PANEL with SCREEN ASS Y CAUTION Place the FRONT PANEL with SCREEN ASS Y on a flat table without fail Because of the large size at least 2 persons are recommended for removal and reassemble Use care not to ...

Page 11: ... 11 Fig 1 CENTER COVER CLAW FRONT PANEL SCREEN ASS Y SCREEN BRACKET SPEAKER GRILL SPEAKER SPEAKER FRONT LED PWB FRONT SPACER SPACER SPACER SCREEN BRACKET G G F G F F F G C E H B D H A A SPACER SPACER SPACER SPACER ...

Page 12: ...DE CONTROL BASE is taken out by removing six claws 3 1 1 9 REMOVING THE SUPPORT BRACKET Fig 2 Remove the SPEAKER GRILL Remove the FRONT PANEL with the SCREEN ASS Y 1 Remove the 3 screws E 1 Remove the SUPPORT BRACKET 2 RemovetheoppositeSUPPORTBRACKETbythesamemethod 3 1 1 10 REMOVING THE BACK COVER Fig 2 Remove the SPEAKER GRILL Remove the FRONT PANEL with the SCREEN ASS Y Remove the SUPPORT BRACKE...

Page 13: ...LAW SIDE CONTROL BASE MIRROR MIRROR HOLDER FILTER COVER FILTER COVER FILTER BACK COVER FILTER MIRROR HOLDER SUPPORT PLATE SUPPORT BRACKET SUPPORT BRACKET SUPPORT PLATE MIRROR HOLDER SHADE COVER FRONT C MIRROR HOLDER MIRROR HOLDER C D E H F B A K K G E B J ...

Page 14: ...rectly at the light during service Do not touch the lamp directly as it presents a burn hazard NOTE When not performing repair work attach the cap on the lens to preventing dust from covering When mounting to the set make sure the front of the lens is in contact with the cushion on the set body side Make sure that FRONT LED PWB connector is completely connect to the ANALOG PWB connector When wire ...

Page 15: ...and set it to 000 when not 000 6 Press MUTING key to memorize the data 7 Press BACK key twice to exit the SERVICE MODE 3 1 2 9 REMOVING THE ATSC TUNER COOLING FAN Fig 3 Remove the LAMP COVER Remove the BODY COVER Remove the BODY BRACKET Remove the MAIN UNIT Remove the AV TERMINAL BOARD Remove the POWER PWB and TUNER PWB Remove the ANALOG PWB 1 Remove the 1 screw R 2 Remove the DIGITAL PWB BRACKET ...

Page 16: ...POWER CORD BODY COVER LAMP COVER LAMP UNIT POWER PWB ANALOG PWB ATSC TUNER COOLING FAN ATSC TUNER SHIELD COVER DIGITAL PWB SHIELD COVER DIGITAL PWB BRACKET DIGITAL PWB HANGER BRACKET TUNER PWB ATSC TUNER PWB SD CARD PWB F E C G H L K J M N W X S T P R U V Q B A Y SD CARD BRACKET ...

Page 17: ...3 1 2 17 REMOVING THE LAMP BALLAST BLOCK Fig 4 Remove the LAMP COVER Remove the BODY COVER Remove the BODY BRACKET Remove the MAIN UNIT 1 Remove the 2 screws H 2 Remove the LAMP BALLAST UNIT 3 Remove the 1 screw J 4 Remove the LAMP BALLAST BRACKET 3 1 2 18 REMOVING THE IRIS PWB Fig 4 Remove the LAMP COVER Remove the BODY COVER Remove the BODY BRACKET Remove the MAIN UNIT 1 Remove the 2 screws K 2 ...

Page 18: ...emove the DRIVE PWB 3 1 2 22 REMOVING THE OPTICAL BLOCK COOLING FAN Fig 4 Remove the LAMP COVER Remove the BODY COVER Remove the BODY BRACKET Remove the MAIN UNIT Remove the LAMP FAN DUCT Remove the OPTICAL DRIVE ASS Y 1 Remove the 2 screws U 2 Remove the SIROCCO TOP CASE 3 Remove the 2 screws V 4 Remove the OPTICAL BLOCK COOLING FAN 3 1 2 23 REMOVING THE PROJECTION LENS Fig 4 Remove the LAMP COVE...

Page 19: ... PWB OPTICAL DRIVE ASS Y THERMO PWB UNIT BASE LAMP BALLAST BLOCK LAMP BALLAST UNIT LAMP BALLAST BRACKET FRONT SIROCCO TOP CASE OPTICAL BLOCK COOLING FAN THERMOSTAT LAMP FAN DUCT COOLING FAN BRACKET LAMP COOLING FAN 2 LAMP COOLING FAN 1 LAMP COVER SW PWB LAMP COVER SW BRACKET TOP DUCT PLATE DRIVE PWB SHIELD TOP CASE TOP DUCT OPTICAL BLOCK ...

Page 20: ...CTIONS and set the items as described 6 SERVICE MODE setting Verify what to set in the SERVICE MODE and set whatever is necessary Fig 1 Refer to the SERVICE ADJUSTMENT for setting 3 2 3 SERVICE MODE SETTING SERVICE MODE SCREEN Fig 1 SETTING ITEM Simbol Number of pins Mounting PWB Main content of data IC3753 8 pin DRIVE PWB Adjustment and setting data GAMMA SHADING etc of IC3701 DRIVE CPU are memor...

Page 21: ...A AUTO C C OFF MTS STEREO TWIN SOURCE LEFT SIDE CABLE 02 RIGHT SIDE INPUT 1 SOUND A H S OFF VOICE ENHANCEMENT OFF SMART SOUND OFF MaxxBass OFF VIDEO STATUS DYNAMIC Setting item DYNAMIC STANDARD GAME THEATER TINT 02 00 00 00 COLOR 08 00 00 00 PICTURE 00 00 10 00 BRIGHT 00 00 00 00 DETAIL 06 00 00 00 IRIS 10 00 00 04 COLOR TEMPERATURE HIGH LOW HIGH HIGH COLOR MANAGEMENT ON ON ON ON DYNAMIC GAMMA ON ...

Page 22: ... TIMER NO Setting item Setting position VIDEO 1 MONITOR OUT OFF TV SPEAKER ON AUDIO OUT FIX DIGITAL IN AUTO DIGITAL IN1 AUDIO AUTO CENTER CH INPUT OFF NOISE MUTING ON FRONT PANEL LOCK OFF V1 SMART INPUT OFF VIDEO INPUT LABEL All blank POSITION ADJUSTMENT Center POWER INDICATOR HIGH LANGUAGE ENG CLOSED CAPTION OFF AUTO SHUT OFF OFF XDS ID ON AUTO TUNER SETUP Unnecessary to set V CHIP OFF ...

Page 23: ...the tweezers and remove the chip part Transistors diodes variable resistors etc 1 Apply extra solder to each lead 2 As shown in the figure push the part with tweezers and alternately melt the solder at each lead Shift and remove the chip part NOTE After removing the part remove remaining solder from the pattern 2 How to install Chip parts Resistors capacitors etc 1 Apply solder to the pattern as i...

Page 24: ... such as variable resistors transformers and condensers not shown in the adjustment items of this service adjustment 4 2 PRESET SETTING BEFORE ADJUSTMENTS Unless otherwise specified in the adjustment items preset the following functions with the REMOTE CONTROL UNIT 4 3 MEASURING INSTRUMENT AND FIXTURES Oscilloscope Signal generator Pattern generator NTSC 525i 525p 750p 1125i TV audio multiplex sig...

Page 25: ...JUSTMENT MODE When the SERVICE MENU SCREEN of SERVICE MODE is displayed press 1 key to enter the ADJUSTMENT MODE Fig 2 4 5 4 2 DESCRIPTION OF STATUS DISPLAY OF ADJUSTMENT MODE Fig 2 1 SIGNAL SYSTEM The signal displayed on the screen is displayed 2 SCREEN MODE State of the SCREEN SIZE or MULTI PICTURE is displayed SINGLE SCREEN MULTI SCREEN SERVICE MENU SCREEN SERVICE MENU SERVICE MENU 1 ADJUST 1 A...

Page 26: ...to enter the RGB BOX PATTERN MODE Fig3 4 5 5 2 DESCRIPTION OF STATUS DISPLAY OF RGB BOX PATTERN MODE Fig 3 1 RGB BOX PATTERN The checkered pattern is displayed White is a synthesis of RGB 2 ADJUSTMENT COLOR MODE Presently selected ADJUSTMENT COLOR MODE is displayed SELECTION OF SETTING ITEM CH CH key Move the selected RGB BOX PATTERN up down pixel by pixel VOL VOL key Move the selected RGB BOX PAT...

Page 27: ...0 M008 1E07 00 FF 00 M009 1E08 00 FF 00 M010 1E09 00 FF 00 M011 1E0A 00 FF 01 M012 1E0B 00 FF 00 M013 1E0C 00 FF 01 M014 1E0D 00 FF 00 M015 1E0E 00 FF 00 M016 1E0F 00 FF 00 M017 1E10 00 FF 01 M018 1E11 00 FF 00 M019 1E12 00 FF 00 M020 1E13 00 FF 01 M021 1E14 00 FF 01 M022 1E15 00 FF 00 M023 1E16 00 FF 00 M024 1E17 00 FF 00 M025 1E18 00 FF 00 M026 1E19 00 FF 00 M027 1E1A 00 FF 00 M028 1E1B 00 FF 00...

Page 28: ...00 FF 00 M120 1E77 00 FF 00 M121 1E78 00 FF 03 M122 1E79 00 FF 00 Item No Item Variable range Setting value M123 1E7A 00 FF 00 M124 1E7B 00 FF 00 M125 1E7C 00 FF 00 M126 1E7D 00 FF 00 M127 1E7E 00 FF 01 M128 1E7F 00 FF 00 M129 1E80 00 FF 01 M130 1E81 00 FF 00 M131 1E82 00 FF 01 M132 1E83 00 FF 00 M133 1E84 00 FF 00 M134 1E85 00 FF 00 M135 1E86 00 FF 00 M136 1E87 00 FF 00 M137 1E88 00 FF 00 M138 1E...

Page 29: ...0 M210 1ED1 00 FF 00 M211 1ED2 00 FF 00 M212 1ED3 00 FF 00 M213 1ED4 00 FF 00 M214 1ED5 00 FF 00 M215 1ED6 00 FF 00 M216 1ED7 00 FF 00 M217 1ED8 00 FF 00 M218 1ED9 00 FF 00 M219 1EDA 00 FF 00 M220 1EDB 00 FF 00 M221 1EDC 00 FF 00 M222 1EDD 00 FF 00 M223 1EDE 00 FF 00 M224 1EDF 00 FF 00 Item No Item Variable range Setting value F001 DD 000 001 000 F002 RAM REF 000 001 000 Item No Item Variable rang...

Page 30: ...GB box pattern adjust the right edge position as same or less than 0 5 pixel hight as green 10 Check to see that the cross pattern is white If the cross pattern is not white repeat the step 4 to 9 as abobe NOTE Green is fixed It can not be removed With this adjustment mode the changed data is written in the MEMORY instantly DRIVE CENTER POSITION Remote control unit Signal generator 9 RGB BOX PATTE...

Page 31: ...1 Receive any broadcast 2 Select 1 ADJUST from the SERVICE MODE 3 Verify that the T001 INPLEVEL is set at its initial setting value 4 Press the MUTING key to memorize the set value MTS SEPARATION TV audio multiplex signal generator Oscilloscope Remote control unit L OUT R OUT 1 ADJUST T002 LOWSEPA T003 HIGHSEPA 1 Input the stereo L signal 300Hz from the TV audio multiplex signal generator to the a...

Page 32: ... return to the SERVICE MENU SCREEN 5 1 3 HOW TO EXIT THE SELF CHECK MODE TO SAVE FAILURE HISTORY Turn off the power by unplugging the AC power cord plug when in the Self check mode TO CLEAR RESET FAILURE HISTORY Turn off the power by pressing the POWER key on the remote control unit when in the Self check mode 5 1 4 FAILURE HISTORY Failure history can be counted up to 9 times for each item When th...

Page 33: ...is always supervised and an error occurs Lamp does not light up L1 Confirm that the lamp dose not light up CNBCT1 DRIVE PWB TXD It will count if the serial communication from a DD MICOM is always supervised and an error occurs Lamp goes out L2 Confirm that the lamp dose not goes out CNBCT1 DRIVE PWB TXD It will count if the serial communication from a DD MICOM is always supervised and an error occ...

Page 34: ...PWB 1 2 sec interval Low bias line short protection Detection of the low bias line 5V 9V 12V short Q9821 Q9831 Q9861 POWER PWB 2 1 sec interval Lamp cover open Detection of the interlock switch status for the lamp cover H Abnormal S0861 LAMP COVER SW PWB 3 0 1 sec interval Simultaneously Lamp goes out Detection of lamp return LAMP_RTN signals output depending on the status of the lamp supply elect...

Page 35: ... No YA409 ILA Display Category 12 3 chome Moriya cho Kanagawa ku Yokohama city Kanagawa prefecture 221 8528 Japan Victor Company of Japan Limited VPT Printed in Japan ...