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C75CA-BO9D72D-M

Service Manual V1.0

Summary of Contents for Maxhub C75CA-BO9D72D-M

Page 1: ...1 C75CA BO9D72D M Service Manual V1 0...

Page 2: ...2 Document Revision History Version Modification Date Page NO Updated Instructions Reviser Confirmed by 1 0 9 19 2020 All Release Version Hooke Lin Yiqingduo...

Page 3: ...rnal Cables 18 I Cable Connection Guide 18 II Cable Connection Diagram 19 Key Parts List For reference only 22 Principle of Key Components 23 I Three in one Main Board TP T972 360W 23 II Wifi Board SR...

Page 4: ...upply socket Connect all devices to the proper connector Connect or disconnect cables with one hand is recommended Do not turn on any device when there is a fire flood or collapse of a house Please di...

Page 5: ...l cause explode Please DO NOT Put the battery into water Heat the battery to more than 100 degrees C 212 degrees F Repair or disassemble the battery without authorization 3 The AC switch or button mig...

Page 6: ...6 Product Basic Specifications I Product Appearance Front view Back view...

Page 7: ...7 Side view PC Module Right side signal input output AC insert and switch...

Page 8: ...8 Back view of the screen Three in one main board TCON Woofer USB board Key board WiFi board Power board Speaker Speaker...

Page 9: ...9 Electrical Diagram...

Page 10: ...ttom corner 1 27 Woofer 1 7 Left inside bottom corner 1 28 Power board 1 8 Source clip 1 29 Three in one main board 1 9 AG Glass 1 30 PC module bracket bottom 1 10 Bottom bezel 1 31 PC module bracket...

Page 11: ...le 1 Screw Location Three in one Main Board NO NAME QTY NO NAME QTY 18 Small back cover Left 1 39 Right inside upper corner 2 19 Speaker 2 40 AG Glass bracket Upper Middle 2 20 Hall device 2 41 Upper...

Page 12: ...12 USB Board 1 Take off the screws of USB board bracket 2 Take out the plastic components and USB board...

Page 13: ...13 Hall device Key Board...

Page 14: ...14 Power board Camera MIC Board...

Page 15: ...you need to remove the lower terminal block the side terminal block Cut off the power before performing replacement so as to prevent any short circuit resulting from contact of wires Please note whet...

Page 16: ...oard Left middle right STEP 2 Remove external corner STEP 3 Remove the touch cables between touch frame and Three in one main board use tweezers to press the buckle of touch cable connector and plug o...

Page 17: ...e and pull out the board by hands from the other side For left and right touch frame Push the touch board from bottom side and pull out the board by hands from the top side STEP 7 Completed FFC socket...

Page 18: ...04 050 0050210 Three in one main board to Camera 4 FFC Cable 4 004 050 0004746 Camera to MIC 5 FFC Cable 5 004 050 0004747 Camera to MIC 6 speaker cable 004 050 0050006 Three in one main board to spea...

Page 19: ...19 II Cable Connection Diagram 1 5 FFC Cable 1 FFC cable 5 6 Speaker cable Camera MIC board FFC cable 5 FFC cable 4 FFC cable 1 FFC cable 2 FFC cable 3...

Page 20: ...20 7 USB cable 8 AC cable...

Page 21: ...21 9 Touch frame FFC cable Three PCBA on the corners are connected with 150mm FFC cables...

Page 22: ...er board PW 180W1 751E 1 004 057 0050546 Three in one Main Board TP T972 360WD 1 004 057 0001000 Key board SRC KEYUSB 02C 1 004 057 0050149 WIFI board SRK PC120P 01A 1 004 057 0001078 Camera board SRC...

Page 23: ...23 Principle of Key Components I Three in one Main Board TP T972 360W 1 CN7 TOUCH IR KEY LED FAN CNT1 CN18 CN2 CN15 CN20 CN11 CN17 CN7 CNW1...

Page 24: ...24 2 CN20 KEY 3 CN15 Speaker 4 CN17 TC2...

Page 25: ...25 5 CN10 UART 6 CN2 INVERTER FAN PANEL 7 CN18 E CAMMER...

Page 26: ...26 8 CNT1 C TOUCH 9 CNW1 VBYONE II Wifi Board SRV AP_WiFi_IoT 01 CN1...

Page 27: ...p view of touch frame main board 2 Back view of touch frame main board 3 Touch Cable Connecter of Touch frame main board just for reference 4 Touch Frame Connector Pin Definition Pin USB connect board...

Page 28: ...28 3 D 4 VCC 5 D 6 D 7 GND 8 PGND...

Page 29: ...29 Troubleshoot steps I LED does not turn red...

Page 30: ...30 II LED does not turn blue...

Page 31: ...31 III Touch issue...

Page 32: ...32 IV PC issue...

Page 33: ...33 V LED turn blue but no backlight...

Page 34: ...u will get upgrade_972 folder contains allupgrade_v972 bin MCU bin 3 Insert USB disk into the USB port of the TV board 4 Turn on the panel Press INPUT 1379 with remote controller and then the debug me...

Page 35: ...ress the POWER key and hold it until the power LED twinkles in red and blue The TV will upgrade first When finished the screen will reboot and upgrade MCU automatically It will take 4 minutes to compl...

Page 36: ...6 4 Select Touch upgrade and get into the upgrade interface choose the touch file bin file from the USB disk press START UPGRADE 5 After upgrade finished press the X button in the right corner and exi...

Page 37: ...37 Note When running the TouchPanelTools application the Touch Service should be showing Device connected If not please reboot and upgrade again...

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