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1-14 (No.YA299)

Fig.2

BOTTOM FRAME

TOP FRAME

MAIN BASE

FRONT

C

D

E

A

A

B

G

F

H

SPEAKER

SPEAKER

FRONT LED PWB

FRONT PANEL

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Содержание LT-37DM6ZJ

Страница 1: ...pan Limited No YA299 2005 6 LCD INTEGRATED DIGITAL TV YA299 2005 6 LT 37DS6BJ LT 37DS6BJ P TABLE OF CONTENTS 1 PRECAUTION 1 3 2 SPECIFIC SERVICE INSTRUCTIONS 1 6 3 DISASSEMBLY 1 11 4 ADJUSTMENT 1 18 5 TROUBLESHOOTING 1 25 BASIC CHASSIS FL2 Preliminary ...

Страница 2: ...F UHF 75 Ω unbalanced coaxial EXT 1 EXT 2 Input Output 21 pin Euro connector SCART socket 2 EXT 3 Input S Video Video Audio Mini DIN 4 pin 1 Y 1 V p p Positive Negative sync provided 75 Ω C 0 286 V p p Burst signal 75 Ω 1 V p p Positive Negative sync provided 75 Ω RCA pin jack 1 500 mV rms High impedance RCA pin jack 2 EXT 4 Input Component Video 1125i 625p 525p 625i 525i Audio RCA pin jack 3 Y 1 ...

Страница 3: ...afety characteristics are identified in the Parts List of Service Manual Electrical components having such features are identified by shading on the schematics and by on the Parts List in the Service Manual The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement part shown in the Parts List of Service Manual may cause shock fire or oth...

Страница 4: ...NSTALLATION REQUIREMENTS To ensure safety in an emergency such as an earthquake and to prevent accidents ensure that measures are taken to prevent the TV dropping or falling over Tie commercially available tough cord s to the hooks in the back of the TV and fix the TV to solid walls or columns 1 2 4 NOTES ON HANDLING 1 WHEN TAKING UNIT OUT OF A PACKING CASE When taking the unit out of a packing ca...

Страница 5: ...uring transportation and storage as the LCD panel is very vulnerable to lateral impacts and may break During transportation ensure that the unit is loaded along the traveling direction of the vehicle and avoid stacking them on one another For storage ensure that they are stacked in 2 layers or less even when placed upright 1 3 2 OPTICAL FILTER ON THE FRONT OF THE LCD PANEL 1 Avoid placing the unit...

Страница 6: ...it easier to see the bright areas when a picture has many bright areas ZOOM This function can change the screen size according to the picture aspect ratio DIGITAL VNR This function cuts down the amount of noise in the original picture SUPER DIGIPURE This function uses the latest in digital technology to give you a natural looking picture MOVIE THEATRE This function displays a cinema film picture m...

Страница 7: ...dance Used L1 Used L2 7 B input 700mV B W 75Ω Used Used 8 FUNCTION SW SLOW SW Low 0V 3V High 8V 12V High impedance Used Used 9 GND G Used Used 10 SCL T V LINK Not used Used SCL2 TV LINK 11 G input 700mV B W 75Ω Used Used 12 SDA Not used Used SDA2 13 GND R Used Used 14 GND YS Used Not used 15 R C input R 700mV B W 75Ω C 300mV P P 75Ω Used R Used C2 R 16 Ys input FAST SW Low 0V 0 4V High 1V 3V 75Ω U...

Страница 8: ...with the brightness twice as brighter as originally lighting For checking this pixel fault input 100 of each R G B colour and find out the cell that is not lighting FLICKER FAULT In the pixel fault a cell that should light originally or not light originally is flashing on and off For checking this pixel fault input ALL BLACK SCREEN signal or 100 of each RGB colour and find out the cell that is fla...

Страница 9: ...gram ROM address for main CPU 94 P5 15 O Green for OSD 31 VSS33 GND 95 TRIG_IN O Green for OSD 32 VDD33 I 3 3V 96 TRIG_OUT O Green for OSD 33 A4 O Program ROM address for main CPU 97 P6 2 O Green for OSD 34 A3 O Program ROM address for main CPU 98 P6 3 O I2 C bus clock for main memory 35 A2 O Program ROM address for main CPU 99 P6 4 I O I2 C bus Data for main memory 36 A1 O Program ROM address for...

Страница 10: ...connect CN01P for Frash ROM type 25 MODE I Single chip mode 75 NMI I 3 3V power supply 26 BS1 5CTL O Digital tuner power reset control 76 COMP I Not used AV COMPULINK lll control 27 A92RES O Reset for IC1001 3D YC SEP COLOUR DEMODULAT Reset H 77 REMO I Remote control 28 BS_RST O Reset for Digital tuner power reset control 78 VSYNC I V sync pulse 29 LIP_RST O Reset for Sound delay Lip sync 79 WAKE ...

Страница 11: ... screw H then remove the POWER PWB 3 1 5 REMOVING THE ANALOG SYGNAL PWB Fig 1 Remove the STAND Remove the REAR COVER Remove the FAN BRACKET 1 Remove the 3 screws J then remove the TERMINAL BASE 2 Remove the 5 screws K and 1screw L then remove the ANALOG SIGNAL PWB 3 1 6 REMOVING THE FRONT CONTROL PWB Fig 1 Remove the STAND Remove the REAR COVER 1 Remove the 3 screws M then remove the CONTROL ASSY ...

Страница 12: ...RACKET RECEIVER PWB BRACKET B A B C D E N P U W V F X Y F Q S T M M J L G H STAND STAND COVER JACK COVER JACK COVER TUNER BASE DIGITAL SIGNAL PWB CONNECTOR PWB POWER CORD HOLDER ANALOG SIGNAL PWB TERMINAL BASE POWER CORD POWER PWB REAR COVER REGULATOR PWB RECEIVER PWB K DIGITAL TUNER UNIT ...

Страница 13: ...ot be kept 3 1 12 REMOVING THE FRONT LED PWB Fig 2 Remove the STAND Remove the REAR COVER Remove the FAN BRACKET 1 Remove the 2 screws B then remove the FRONT LED PWB 3 1 13 REMOVING THE LCD PANEL UNIT Fig 2 Remove the STAND Remove the REAR COVER Remove the FAN BRACKET 1 Remove the 2 screws C then remove the MAIN BASE 2 Remove the 3 screws D the 2 screws E and the 1 screw F then remove the TOP FRA...

Страница 14: ...1 14 No YA299 Fig 2 BOTTOM FRAME TOP FRAME MAIN BASE FRONT C D E A A B G F H SPEAKER SPEAKER FRONT LED PWB FRONT PANEL ...

Страница 15: ...set as described 5 User setting Check the user setting items according to the given in page later Where these do not agree refer to the OPERATING INSTRUCTIONS 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 2 SERVICE MODE SETTING SERVICE MODE SCREEN Fig 1 SETTING ITEM MA...

Страница 16: ...EXT AUTO 4 3 AUTO ASPECT PANORAMIC Setting item Setting position STEREO I II Stereo sound BASS Centre TREBLE Centre BALANCE Centre 3D SOUND OFF A H B ON BBE ON Setting item Setting position SLEEP TIMER OFF CHILD LOCK ID NO 0000 All CH off APPEARANCE TYPE D BLUE BACK ON FAVOURITE SETTING Reset ILLUMINATION BRIGHT Setting item Setting position AUTO PROGRAM TV channel automatically set EDIT MANUAL PR...

Страница 17: ...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...

Страница 18: ...Hz A D OFFSET adjustment SUB SCREEN A D OFFSET adjustment WHITE BALANCE HIGH LIGHT adjustment 4 5 BASIC OPERATION OF SERVICE MODE 4 5 1 HOW TO ENTER THE SERVICE MODE 1 Press INFORMATION key and MUTING key on the remote control unit simultaneously to enter the SERVICE MODE SCREEN 2 In the SERVICE MENU press the 1 key to display ADJUSTMENT MODE SCREEN NOTE Before entering the SERVICE MODE confirm th...

Страница 19: ... MODE SELECT KEY LOCATION PAL50 PAL50Hz Composite S video PAL60 PAL60Hz Composite S video SECAM SECAM NTSC3 NTSC3 58 NTSC4 NTSC4 43 525I 525i Component 525P 525p 625I 625i Component 625P 625p 1125I5 1125i 50Hz 1125I6 1125i 60Hz RGB5 RGB 525i RGB6 RGB 625i PCVGA PC VGA PCXGA PC XGA H525I HDMI 525i H525P HDMI 525p H625I HDMI 625i H625P HDMI 625p H750P HDMI 750p H125I5 HDMI 1125i 50Hz H125I6 HDMI 112...

Страница 20: ...y 0 255 0 S026 Not display 0 255 0 S027 Not display 0 255 0 S028 Not display 0 255 0 S029 Not display 0 255 0 S030 R DRIVE 0 255 133 S031 G DRIVE 0 255 132 S032 B DRIVE 0 255 109 S033 Not display 0 255 0 S034 Not display 0 255 0 S035 Not display 0 255 0 S036 Not display 0 255 0 S037 Not display 0 255 0 S038 Not display 0 255 0 S039 ILA COM 0 1 0 Item No Item name Variable range Setting value T001 ...

Страница 21: ...F 00 Item No Item name Variable range Setting value D070 Not display 00 FF 00 D071 Not display 00 FF 00 D072 Not display 00 FF 00 D073 Not display 00 FF 00 D074 Not display 00 FF 00 D075 Not display 00 FF 00 D076 Not display 00 FF 00 D077 Not display 00 FF 00 D078 Not display 00 FF 00 D079 Not display 00 FF 00 D080 Not display 00 FF 00 D081 Not display 00 FF 00 D082 Not display 00 FF 00 D083 Not d...

Страница 22: ... FF 00 D157 Not display 00 FF 00 D158 Not display 00 FF 00 D159 Not display 00 FF 00 D160 Not display 00 FF 00 D161 Not display 00 FF 00 D162 Not display 00 FF 00 D163 Not display 00 FF 00 D164 Not display 00 FF 00 D165 Not display 00 FF 00 D166 Not display 00 FF 00 D167 Not display 00 FF 00 D168 Not display 00 FF 00 D169 Not display 00 FF 00 Item No Item name Variable range Setting value D170 Not...

Страница 23: ...t ZOOM to FULL 4 Set COLOUR TEMP to NORMAL 5 Select 1 ADJUST from the SERVICE MODE 6 Set S030 R DRIVE S031 G DRIVE and S032 B DRIVE to 133 7 Set S001 adjustment setting mode change to set the values 12 and it change to the 1125i black level adjustment setting mode 8 Adjust S012 1125i brightness to set the 0 black part in the upper half of the screen to be brightest 9 Set S001 to set 0 and it chang...

Страница 24: ...Adjust S017 Sub screen cr offset to minimize the red noise in the upper half of the screen 11 Readjust S016 and S017 to set the upper half of the screen to be the blackest 12 Set S001 to set 0 and it change to the normal mode 13 Press the MUTING key to memoirze the set value WHITE BALANCE HIGHLIGHT Remote control unit Signal generator 1 ADJUST S030 R DRIVE Red drive S031 G DRIVE Green drive S032 B...

Страница 25: ...mode 5 1 4 FAILURE HISTORY Failure history can be counted up to 9 times for each item When the number exceeds 9 display will remain as 9 Failure history will be stored in the memory unless it has been deleted NOTE Only SYNC with without sync signals will be neither counted nor stored 5 1 5 POINTS TO NOTE WHEN USING THE SELF CHECK FEATURE In addition to circuit failures abnormal operation the follo...

Страница 26: ...I Not used Main memory MEM Confirmation of reply of ACK signal which uses I2C communication IC7602 DIGITAL SIGNAL PWB SDA Same as above AV select switch AVSW Same as above IC301 IC501 ANALOG SIGNAL PWB SDA Same as above 3 dimensions YC separator YC Not used Multi sound process AIO Not used RF tuner TUN Confirmation of reply of ACK signal which uses I2C communication TU3002 RECEIVER PWB SDA If it c...

Страница 27: ...ot used Abnormal of operation of PANEL ALM Not used Abnormal rise of temperature in PANEL TMP Not used Abnormal rise of temperature in audio circuit ATP Not used Short circuit detection of audio circuit ASH Not used Panel communication PNL Not used Sub memory MEM Not used Temp sensor TMP Not used Audio control AIO Confirmation of reply of ACK signal which uses I2 C communication IC6521 ANALOG SIGN...

Страница 28: ... No YA299 AV MULTIMEDIA COMPANY 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 ...

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