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.
Hisense, must first satisfy himself thoroughly that neither his safety nor the safe of the equipment will be jeopardized by the service method selected. Hereafter throughout this manual, Hisense Electric Co., Ltd will be referred to as Hisense. 1.1 Warning 1.1.1...
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Unauthorized substitutions may result in fire, electric shock, or other hazards. 1.1.5 Safety regulations require that after a repair the set must be returned in its original Hisense Confidential - 5 -...
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(6) Do not disconnect or connect the connector while power to the product is on. It takes some time for the voltage to drop to a sufficiently low level after the power has Hisense Confidential - 6 -...
1.2 Notes Notes on Safe Handling of the Plasma Display and during service The work procedures shown with the Note indication are important for ensuring the Hisense Confidential - 7 -...
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• When the surface of the panel comes into contact with the cushioning materials, be sure to confirm that there is no foreign matter on top of the cushioning materials before the surface of the panel comes into contact with the cushioning materials. Failure to Hisense Confidential - 8 -...
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Also verify that the screws, parts and cables removed for servicing purposes have all been returned to their proper locations in accordance with the original setup. Hisense Confidential - 9 -...
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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 - 10 -...
14.2 Kg ± 0.5 Kg 20.4±0.5 Kg Net 1EA Weight Power Max.330W Max. 400 W Full White Consumption Expected 60,000 Hours 60,000 Hours Life-time Income inspections please refer to panel specification of LGE 42X4and 50X4. Hisense Confidential - 14 -...
Plasma TV Service Manual 3.2 BLOCK DIAGRAM 3.2.1 PLX-4202B Note: Applied Voltage level is specified at the time when Full-White pattern is displayed on the panel. Hisense Confidential - 15 -...
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Plasma TV Service Manual 3.2.2 PLX-5002B Note: Applied Voltage level is specified at the time when Full-White pattern is displayed on the panel. Hisense Confidential - 16 -...
LVDS signal between MB and panel XP14 TJC3-12A\ROH Power from PSU BD P803 TJC10-3A\ROH Buttons (connect key BD and main BD) TJC10-5A\ROH IR, LED TJC10-4A\ROH Serial Port connector A2006WSO-2×13P\ROH Video/Audio signal TJC3-4A\ROH Headphone Audio Signal Hisense Confidential - 19 -...
Audio out put (R/L) TJC3H-4Y-800-850-P\ROH Main BD XP11<-->Speakers Headphone Audio TJC3T-4Y-300\ROH Main BD XP8<-->I/O CON BD XP02 Serial data TJC10T-4Y-300\ROH Main BD XP5<-->I/O CON BD XP03 Video/Audio signal HX-2026C250 Main BD XP6<-->I/O CON BD XP01 Hisense Confidential - 20 -...
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Plasma TV Service Manual PHD5039NUS DESCRIPTION SPECIPICATION NOTE LVDS signal FF-HX19-11 Main BD XP12<-->CRTL BD 5V standby, communication TJC3-7Y-EI-200\ROH Main BD XP13<-->PSU CN801 between Main BD and panel +5V, +12V supply to Main BD TJC3-12Y-EI-200\ROH Main BD XP14<-->PSU CN803 Power supply for amplifier TJC3-4Y-EI-200\ROH Main BD XP15<-->PSU CN802...
5.2.2 Factory Option Item Default Options Notes M-Can enter factory mode with factory RC or user RC. MODE M, U U-Can enter factory mode only with user’s RC. Note: MODE “M” is only used for factory production. Hisense Confidential - 22 -...
5.3.1 Video Mode Standard: S-Video Component HDMI R Gain G Gain B Gain Note:Fore PHD5039NUS, HDMI date of Standard mode is:0 0 -8 Offset: S-Video Component HDMI R Gain G Gain B Gain Note:For PHD5039NUS, HDMI Offset date is :-1 -1 9...
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Plasma TV Service Manual Movie Bright Movie Contrast Movie Saturation : 5.3.4 Volume Curve Data Note:Set Downmix to “Lt/Rt”. Hisense Confidential - 25 -...
Connect the unit to your pc with a USB-to-serial port cable. USB port connects to your pc, and serial port to the TV’s RS232 port. USB connector: to PC. Serial connector: to TV’s RS232 port. Hisense Confidential - 26 -...
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Plasma TV Service Manual 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 - 27 -...
After connecting the TV with your PC, double click icon, open the MtkTool. If following error appears, it means the related port is not set properly. Ignore these errors, click “Confirm” and enter the MtkTool main interface, see the following picture. Hisense Confidential - 28 -...
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Open “Device Manager” and find which port is connected with the TV. In above picture, COM2 is connected to the TV; so, select “COM2” in the MtkTool main interface. Select the right baud rate according to chip model. For this unit (chip model is MT5371), select 115200×2. Hisense Confidential - 29 -...
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Note: Where or not click the “Auto Set Flash Baud Rate” in the “window” menu depends on the chip type. If the flash chip does not support high speed transport, do not select this option; otherwise, reserve the selected mood. For these two units here, click off “Auto Set Flash Baud Hisense Confidential - 30 -...
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Click “Browse” button (5), find the upgrading program file, and select it. Press “Upgrade” button and start upgrading. The following interface appears on the screen- the word “Finished” shows in the information displaying window, indicating upgrading successfully. Hisense Confidential - 31 -...
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 - 32 -...
Plasma 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 - 33 -...
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 - 34 -...
Plasma 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 Replace PSU Hisense Confidential - 35 -...
TV will not turn on. In this case, please disconnect the VGA source from the TV unit, then power on again. Connect the VGA source after the TV works normally, Hisense Confidential - 36 -...
7.6 Troubleshooting for Video/S-Video input No picture on the screen Check Source Check Signal Source work or not Check connect Reconnect Check Cable/ Replace Cable/Wires Wires Check Replace I/O CON BD CON BD Replace main board Hisense Confidential - 37 -...
Plasma TV Service Manual 9. Schematic circuit diagram Element Confidential - 39 -...
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MT5371(PBGA) REFERENCE DESIGN - 4 LAYERS +12V for Audio OPA/AMP/MT5112& Tuner POWER INPUT +5VCC PO W ER AppliedLED U_LHD3216US_ZB_C_05_MT5371 ASIC OPWRSB LHD3216US_ZB_C_05_MT5371 ASIC.SchDoc HIGH = > OPEN FRAME POWER OFF LOW = > OPEN FRAME POWER ON OPWRSB ORESET# 01. INDEX OPCTRL0 BRIGHT OPCTRL1...
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40mA +5VSB DV33SB AP1513/S OP -8 1000mA DV12 120R 2A 40mA 33uH 100uF/16v DV12 AV12 0.1uF AP1117-3.3V 0.1uF 100nF/NC 100nF/NC 100uF/16v 0.1uF 470uF/16v 220u F/16v 100nF 10nF 10uH 10uF 470uF/16v OCSET 10uF 0.1uF 0.1uF 100uF/16v 100K B340A 0.8 x (1+1.2K/2K) = 1.28V STANDBY POWER +3V3 FOR MT5371 0.1uF POWER +1V2 FOR MT5372 (DIGITAL)
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