WHEN REPLACEMENT PARTS ARE REQUIRED, BE SURE TO USE REPLACEMENT PARTS SPECIFIED BY THE MANUFACTURER. Proper service and repair is important to the safe, reliable operation of all Hisense Electric Co., Ltd Equipment. The service procedures recommended by Hisense and described in this Service Guide are effective methods of performing service operations.
LCD TV Service Manual not undertaken any such broad evaluation. Accordingly, a serviceman that uses a service procedure or tools, which are not recommended by Hisense, must first satisfy himself thoroughly that neither his safety nor the safe of the equipment will be jeopardized by the service method selected.
Page 5
Safety regulations require that after a repair the set must be returned in its original condition. In particular attention should be paid to the following points. -Note: The wire trees should be routed correctly and fixed with the mounted Hisense Confidential - 5 -...
Page 6
Confirm that the voltage has dropped to a safe level before disconnecting or connecting the connector. Hisense Confidential - 6 -...
• To prevent electric shock and breakage of PC board, start the servicing work at least 30 seconds after the main power has been turned off. Especially when installing and removing the power board, start servicing at least 2 minutes after the main power has Hisense Confidential - 7 -...
Page 8
• Do not stack the circuit boards. Failure to observe this precaution may result in problems resulting from scratches on the parts, the deformation of parts, and short-circuits due to residual electric charge. • Routing of the wires and fixing them in position must be done in accordance with Hisense Confidential - 8 -...
Page 9
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the set. Hisense Confidential - 9 -...
Weight (gross) 30kg Allowable temperature of operation environment 0℃ to 40℃ ACCESSORIES Operating Instructions Remote Control Unit Power Lead Dry Cell Battery NOTE: Specifications and design are subject to possible modifications without notice due to improvements。 Hisense Confidential - 12 -...
Buttons (connect key BD and main IR, LED TJC10-5A\ROH TJC10-14A\ROH 5V,12V power TJC10-4A\ROH Power 14V from power BD XP212 TJC3-4A\ROH Audio output TJC10-8A\ROH Video, S-video, Headphone out A2600WSO-2X9P\ROH Scart 2 A2600WSO-2X11P\ROH Scart 1 FF-HX19-10\ROH LVDS Hisense Confidential - 16 -...
TJC3H-4Y-800-600\ROH Main BD XP212<-->Speaker L/R Video input connection (Scart 1) HX-2022C500\ROH Main BD J38<-->XP0102 Video input connection (Scart 2) HX-2018C500\ROH Main BD J22<-->XP0101 Video input connection (video, TJC10T-8Y-500\ROH Main BD J19<-->XP2 s-video) and headphone output Hisense Confidential - 17 -...
Page 20
Item 备注 Jiangxi Road factory Zhong Shi Huangdao Industrial Park Huang Dao Gui Yang Industrial Park Gui Yang Liao Ning Industrial Park Liao Ning Hisense Hungary Hungary Hisense Australia Australia Hisense France France 5.2.3. Factory Option Item Default Options Note M-Can enter factory mode with factory RC or user RC.
Page 26
Composite 0-100 S-Video 0-100 SCART1 0-100 MOVIE SCART2 0-100 Contrast of Movie Contrast mode 0-100 Component1 0-100 Component2 0-100 HDMI1 0-100 HDMI2 0-100 MOVIE CVBS 0-100 Saturation of Movie Saturation mode Composite 0-100 S-Video 0-100 Hisense Confidential - 26 -...
Page 27
Think about the Volume Max 0-90 Audio out power before adjusting Standard, Music Audio Mode Speech, Music Different 120HZ -10-10 frequencies for Audio Mode 500HZ -10-10 different Audio 1.5kHZ -10-10 Mode 5kHZ -10-10 10kHZ -10-10 Hisense Confidential - 27 -...
TV’s RS232 port. For the first connecting, the pc will recognize and automatically install the USB device. The process is just like the installation of a mini disk, see the following picture. Hisense Confidential - 28 -...
Page 29
LCD TV Service Manual Hisense Confidential - 29 -...
If following error appears, it means the related port is not be set properly. Ignore these errors, click “Confirm” and enter the MtkTool main interface, see the following picture. 1—Flash chip model (for LHD3233EU, it will be MT5331). 2—The port through which the PC communicate with the chip. Hisense Confidential - 30 -...
Page 31
LCD TV Service Manual 3—The communicating baud rate 4—The new program file (*.bin) for upgrading. 5—Click this button can select the *.bin file to be used for upgrading. 6—Click to start upgrading. Hisense Confidential - 31 -...
Page 32
If the flash chip does not support high speed transport, do not select this option; otherwise, reserve the selected mood. Click “Browse” button (5), find the upgrading program file, select it. Press “Upgrade” button and start upgrading. The following interface appears on the screen, indicating upgrading successfully. Hisense Confidential - 32 -...
Page 33
LCD TV Service Manual Hisense Confidential - 33 -...
Replace battery batteries Replace remote Replace RC control Check IR receiver Change Led Replace Led & IR BD & IR board Change Led Replace Led & IR cable & IR cable Replace main board Hisense Confidential - 34 -...
LCD TV Service Manual 7.2 Troubleshooting for Function Key Buttons does not work Replace tact switch Check switches Replace Key BD Check key board Check Key BD cable Change Key BD Replace main board Hisense Confidential - 35 -...
Check/replace IR Only BD or Keypad one works Try Power on by Check signal RC and Button OSD? Source Neither Both works Work Replace Main Replace Main BD Power on Replace Panel Replace Power BD Hisense Confidential - 36 -...
LCD TV Service Manual 7.4 Troubleshooting for Audio No sound Reconnect Check connecter Replace speaker wire Check speaker wire Replace speaker set Check speaker set Replace main board Hisense Confidential - 37 -...
LCD TV Service Manual 7.5 Troubleshooting for TV/VGA/HDMI input No picture on the screen Check Signal Source Make sure signal source is available Reconnect Check connect Replace cable Check cable Replace main board Hisense Confidential - 38 -...
LCD TV Service Manual 7.6 Troubleshooting for YPbPr input No picture on the screen Check Source Check Source Device work or not Reconnect Check connect Check Wires (Green Replace wires Blue, Red) Replace main board Hisense Confidential - 39 -...
LCD TV Service Manual 7.7 Troubleshooting for Video/S-Video/Scart input No picture on the screen Check Source Check Signal Source work or not Reconnect Check connect Check Cable/ Replace Cable/Wires Wires Check Scart Replace Scart BD Replace main board Hisense Confidential - 40 -...
Need help?
Do you have a question about the LHD4007EU and is the answer not in the manual?
Questions and answers