Hisense HK950 Service Manual Download Page 11 | Manualshive

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Hisense HK950 Service Manual Download Page 11

HK950 Service Manual

3.2.4.

Mainboard and memory removal and replacement

Step 1: repeat the action of 3.2.3, remove the base front cover and unplug the connection cable on the Mainboard

side;

Step 2: Remove the two fixing screws of the mainframe to remove it from the base as shown in the figure;

Step 3: Remove the two fixing screws of the rear case of the main body and remove it.

Step 4: Remove the hard disk bracket, heat sink, Mainboard screws, remove all kinds of cables on the Mainboard,

Mainboard and memory replacement;

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Summary of Contents for HK950

Page 1: ...HK950 Service Manual HK950 Service Manual HISENSE INTELLIGENT COMMERCIAL SYSTEM CO LTD ...

Page 2: ...ovide a complete set of solutions 1 2 basic configuration ainboard system platform 1 Intel Celeron processor 3955U Skylake SOC 2 0Ghz dual core dual thread power consumption 15W 2 Intel Core processor i3 6100U Skylake SOC 2 3Ghz dual core four thread power consumption 15W Memory DDR4L 4G maximum support 8GB Hard disk 1 HDD SATA 2 5 inch 500Gb Standard 2 SATA 64 Gb SSD larger capacity optional or L...

Page 3: ...isplay base composition IO panel 1 4 Use environment Voltage DC 24V bipolar with ground Current 2 5A Operating temperature 10 50 Suggestion 15 30 Working humidity 10 90 Suggestion 40 70 1 screen 2 base 3 MSR or RFID card reader 4 secondary screen 12V DC out VGA LAN port USB Cash drawer 24V pow er in AUDIO 1 2 3 4 COM 4 COM 3 COM 2 COM 1 HD MI ...

Page 4: ...e Prescribed value Minimum value Maximum value 24 0V 22 8V 25 2V 0A 2 5A 2 Input voltage specifications Minimum value NOM Maximum value 90V 90 264 264V 3 Temperature specifications Operating mode 0 C 40 C Storage mode 20 C 70 C 4 Humidity specifications Operating mode 10 90 RH non condensing Storage mode 10 90 RH non condensing 2 2 Mainboard The Mainboard can use the following two types of system ...

Page 5: ...tem power connector 11 DC_OUT1 DC 12V power output 12V power output 12 RJ45_1 LAN connector Network Interface 13 JACK1 Headphone connector Headphone jack 14 R_USB2 USB connector Rear double USB2 0 interface 15 BAT1 CMOS Battery Mainboard COMS battery 16 J_LPT1 LPT connector Parallel printer interface 17 F_PANEL1 Front Panel connector Switch board interface 18 J_SPK1 1 4Pin 2 0mm wafer box Onboard ...

Page 6: ...Attachment Connector SATA data line interface 34 LVDS1 Low Voltage Differential Signaling Transmitter Interface LVDS interface Mainboard rear IO ports panel 2 2 2 Mainboard basic parameters PCB PCB Layer size 6 layer 245 135mm special Chipset CPU Skylake U 15W TDP 3955U I3 6100U CHIPSET SOC SUPER IO ITE8785E ITE8786E RAM RAM PORT AMOUNT 1 channel PORT TYPE SODIMM SPECS DDR4 NOTES Ports definition ...

Page 7: ...fier type TPA6017 Port Type I2S PORT Pins 1 LINE OUT WAFER 4 1 2 00mm Notes Amplifier definition 1 R 2 R 3 L 4 L COM Port COM port COM port Port Amount 6 Port Type COM 1 4 RS232 RJ50 10 PINS COM 5 6 RS232 WAFER 5 2 PHD connectors Live com ports COM 2 4 jumper pin 10th RI 5V 12V selectable Pins Notes COM1 1 NC 2 DCD 3 DSR 4 RXD 5 RTS 6 TXD 7 CTS 8 DTR 9 GND 10 RI COM2 4 1 NC 2 DCD 3 DSR 4 RXD 5 RTS...

Page 8: ...3 LCD display Item Specification Product Type 15 0 TFT Liquid Crystal Display module with LED Backlight units and 20 pins LVDS interface Best display resolution 1024 x 768 XGA mode Display color 16 2M 262k colors Frame size 307 4 H x 231 3 V Visual area size 304 1 H x 228 1 V 15 0 diagonal Operating mode Temperature range Humidity range Remarks 30 C 80 C 90 RH Max Ta 40 Storage Mode 40 C 85 C 90 R...

Page 9: ...n10 Touch point support 10 points touch 2 5 OS supported OS version touch notes windows win10 32BIT supported 64BIT supported WIN7 32BIT supported 64BIT supported LINUX Redhat Server 64BIT supported CentOS 6 4 64BIT supported Ubuntu 14 04 64BIT supported ubuntu 14 10 desktop i386 supported Ⅲ Product disassembly and replacement of major parts 3 1 disassemble tool The main tools 1 Phillips screwdriv...

Page 10: ...disk with plastic fixing bracket and pull the bracket in the direction of the arrow to remove the hard disk Step2 Remove the hard disk from its mounting bracket and replace it 3 2 3 second screen LCD disassembly and replacement Step 1 Dial the lock to as shown remove the front bezel as the picture shows Step 2 Remove the second screen from the base by removing the three screws on the second screen...

Page 11: ...ion cable on the Mainboard side Step 2 Remove the two fixing screws of the mainframe to remove it from the base as shown in the figure Step 3 Remove the two fixing screws of the rear case of the main body and remove it Step 4 Remove the hard disk bracket heat sink Mainboard screws remove all kinds of cables on the Mainboard Mainboard and memory replacement ...

Page 12: ...the main frame and remove the cable between the LCD panel and the Mainboard Step 2 The LCD panel metal shield 10 fixed removed and removed Step 3 Remove the cable and touch panel glue from the LCD panel Step 4 Remove theLCD fixing screws two on each side on the fixing bracket to replace the LCD panel SSD bracket Heat sink RAM ...

Page 13: ...y so it is hard to disassemble the touch screen and front shell so we suggest you may replace front shell and touch panel assy to avoid part damage The parts needed as below PART CODE DESCRIPTION QUAN NOTES P013100 Touch panel DY1502S 2209 1 PCT touch P0360126 Front shell HK950 主机 HZS8 074 207 ABS 银喷漆无丝印 1 P065024 Double side tape 1 Ⅳ Ⅳ Common Fault Analysis And Solution 4 1 Possible Cause of Co...

Page 14: ...agnosis the peripheral first then turn to the host fault diagnosis should be based on the system error 3 Power supply first Power supply is the key to whether the machine can work normally so we should check the power supply first and then diagnosis the other parts 4 From general to special Consider the most likely cause of failure for example If the hard disk cannot work normally we should check ...

Page 15: ... another CMOS battery CMOS System Options Not Set The data stored in the CMOS is corrupted or does not exist Load BIOS default settings Press F1 to continue Del to setup BIOS settings problems it may be a hardware installation problems such as hard disk installation is not correct 1 load the BIOS default settings 2 or check the hardware whether has problem Memory Test Fail Memory installation is n...

Page 16: ...rd fault LVDS cable or LED cable faulty LCD faulty solution Use the substitution method to troubleshoot the relevant parts in the following order LVDS or LED cable LCD mainboard Flower screen white screen unormal color Possible cause mainboard fault LVDS cable or LED cable faulty LCD faulty solution Use the substitution method to troubleshoot the relevant parts in the following order LVDS cable LC...

Page 17: ... reason and solution Can t access to OS It prompt Device error when startup or Non System disk or disk error Replace and strike any key when ready Possible cause CMOS fault mainboard fault OS fault hard drive fault Solution 1 remove the CMOS battery and short circuit related IC then install back CMOS battery 2 reinstall OS 3 replace HDD or SSD 4 replace new mainboard It prompts Invalid partition t...

Page 18: ...oard faulty Solution 1 reload OS 2 replace new RAM 3 replace new mainboard Blue screen or crash Possible cause OS fault software fault RAM fault mainboard fault Solution 1 reload OS 2 replace new RAM 3 replace new mainboard System reboot automatically many times when system boot Possible cause OS fault RAM faulty or mainboard faulty Solution 1 reload OS 2 replace new RAM or replace new mainboard ...

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