Changhong Electric JUC7.820.00084054 Maintenance Manual Download Page 1

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LED COLOUR TV

MAINTENANCE MANUAL

CHASIS: HLS49J

（

MSD308B

）

MODEL: LED32HTC2000E

(JUC7.820.00084054)

Please read this manual carefully before maintenance

Summary of Contents for JUC7.820.00084054

Page 1: ...LED COLOUR TV MAINTENANCE MANUAL CHASIS HLS49J MSD308B MODEL LED32HTC2000E JUC7 820 00084054 Please read this manual carefully before maintenance...

Page 2: ...ame diagram mainboard power supply systems mainboard interface definition 8 4 1 Power supply system 9 4 1 1 The composition and distribution of the TV power supply 9 4 1 2 Pin voltage of the voltage a...

Page 3: ...he low temperature 4 Please note that the long displaying image may remain at the top when shutdown the machine 5 Please avoid the impact from the mobile phone to protect your TV 1 3 Storage notes 1 W...

Page 4: ...ving ratio 1 366x768 Pixel visual area H x V 697 685 H x 392 256 V display colour 8 bit 16 7M million Contrast Ratio 3000 1 brightness 280cd m visual angle 178 horizontal 178 vertical react time 6 5ms...

Page 5: ...ze W x H x D net weight no accessory Kg 2 2 Introduction of terminals practicality photos ATTENTION 1 HDMI and YPbPr support to 1080P 2 The recommendation resolving ratio of PC is 1280X768 PCMCIA Card...

Page 6: ...3 3 5V to 3 3V LDO 7 U809 SY8009B 5V to 1 15V DC DC 8 U808 AMS1117 A 1 5 5V to 1 5V LDO 9 U700 RT9108NBGCP Power amplifier 10 A002 DT21WN 2A E Silicon high frequency head integrated chips 11 U806 MP1...

Page 7: ...Supply Voltages VvDD_25 2 38 2 5 2 62 V 1 2V Supply Voltages VvDD_12 1 14 1 2 1 26 V Junction Temperature Tj 125 Case Temperature TC 100 3 2 2 EN25Q64 104HIP 64Mbit 8M x 8bit brief introduction Pin N...

Page 8: ...ower supply systems mainboard interface definition This chapter mainly introduce the chassis frame diagram power supply system interface definition Use for mainbord power supply PS ON DIM BL ON GND GN...

Page 9: ...bution of the TV power supply U200 MST308BT CON801 Q810 12VU LVDS POWER U700 TPA3110D L713 U001 LDO 3 3V A002 SI TUNER DT21WN 2A E U804 LDO 3 3V U205 FLASH Memory 5VA U805 LDO 3 3V U808 LDO 1 5V U809...

Page 10: ...4 1 2 Pin voltage of the voltage adjustor on the mainboard item No Q810 U808 U001 U805 U804 D802 U809 UT003 output voltage 12V 1 5V 3 3V 2 5V 1 15V 1 2V 3 3V 3 3V 3 3V 1 15V 1 5V 12V PIN1 2 3 12V 1 2V...

Page 11: ...ade tooling 1 Use the combined interface the parallel port upgrade tooling use the upgrade programme TV Utility_4 4 2 Use interface upgrade tooling use the upgrade programme versions higher than TV Ut...

Page 12: ...5 2 Software upgrade introduction 1 Set up ISP Tooling to upgrade the mboot software 2 Open the ISP tooling and select Connect Computer upgrade tooling LED TV Combine interface or USB VGA LAN...

Page 13: ...3 Pls select OK once you connect the tooling successfully 4 Select Read...

Page 14: ...5 Choose right mboot document and open the file 6 Select Auto...

Page 15: ...7 Select Run 8 The mboot is updating...

Page 16: ...ower cord 2 Turn the power on abnormity Picture and sound with 1 Contrast sharpness and color are set improperly 2 Color system is improperly 3 Sound system is improperly 1 Adjust the numberical value...

Page 17: ...tact between the batteries and the springs 3 Replace the batteries Chapter7 High voltage and high current wearing parts list The introduction of maintenance parts are for reference only modification o...

Page 18: ...ust them Contents of sub pages ADC Adjust W B Adjust Setting item Default value Setting item Default value Mode PC RGB YPbPr SD YpbPr HD Scart Mode DTV ATV AV1 Component1 PC RGB HDMI1 2 3 R Gain 4096...

Page 19: ...50 Color 35 Sharpness 50 Sharpness 40 Tint 50 Tint 50 Backlight 100 Backlight 100 Picture Mode Vivid Picture Mode User Brightness 50 Brightness 50 Contrast 75 Contrast 70 Color 65 Color 80 Sharpness...

Page 20: ...to the parent of working directory press EXIT key to quit factory mode Chapter9 Instructions of HLS49J module Circuit Schematic Diagram 9 1 Clear EEPROM and set the parameters after upgrading accordin...

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