Technical description and composition of the HAIER LE55Q6500U TV, type of panel and applicable modules. The composition of the modules.HAIER LED
Model: LE55Q6500U
Chassis / Version: T.MS6586.U801
Panel: LSC550FN14-201
LED backlight: LED55D06A-ZC15AG-04 30355006205, LED55D06B-ZC15AG-04 30355006206
T-CON: 16Y_L55HU11APHTA6XSRV0.0
LED driver (backlight): integrated into PSU
PWM LED driver: OCP8128
MOSFET LED driver: 60R360Q
Power Supply (PSU): TV5502-ZC02-01 (M)
PWM Power: TEA1716, SY8113B
MOSFET Power: BYC8X-600P, 13NM60 (PFC)
MainBoard: T.MS6586.U801
IC MainBoard: CPU, NAND Flash, DDR
Tuner: DVB-T2 & SAT
Technical Specifications LE55Q6500U
HAIER LE55Q6500U
General repair guidelines for TV LCD LED
Possible malfunctions
- HAIER LE55Q6500U does not turn on, the indicators on the front panel do not light or flash. The TV does not respond to the control buttons and the remote control.
With such manifestations, a malfunction is most likely to be detected in the TV5502-ZC02-01 power supply module. It is necessary to measure the output voltages in its secondary circuits, and if they are completely absent, check the serviceability of power switches (BYC8X-600P, 13NM60 (PFC)) and rectifier diodes for possible breakdown (short circuit).
In case of any breakdown of semiconductors in the secondary circuits, the converter can usually work normally in emergency short circuit mode. There are no output voltages. And with a short circuit in the power elements of the primary circuit, as a rule, the mains fuse breaks and less often the current sensor at the source of the key.
Breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in circuits supplying a PWM controller, frequency-setting or damper ones, as well as in negative feedback circuits (OOS) of stabilization. PWM controllers (PWM) TEA1716, SY8113B, if they do not have visible damage to the case and open short circuit between the terminals, are usually checked by replacement.
- There is no image, there is sound, all other functions of the TV work. When turned on, the image may sometimes appear for a second.
The most likely in these cases is a malfunction of the LED backlight. Often the cause of the malfunction is the lack of current in the LED circuit, for example, an open or short circuit, or a violation of the contact connections of the connectors.
To check the LED strips, to open all the transitions of the LEDs, several tens of volts or more are needed, it is best to use a current source for such purposes. The breakage of several PN junctions connected in series cannot be detected with a multimeter or tester. In such cases, it is necessary to open the panel and check each LED. If your multimeter cannot open the LED transitions in forward bias, sometimes you can detect the presence of a PN junction of the protective zener diode by connecting the probes in the opposite direction. If the zener diode is broken or broken in short-circuit, then the LED is faulty and needs to be replaced.
- The TV does not turn on, the indicator indicates standby or operating mode, or blinks.
Repair or diagnostics of the T.MS6586.U801 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). In cases of attempts to repair the MB (SSB) board, it is necessary to check the health of its elements - CPU, NAND Flash, DDR, which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its conclusions with the board (it is diagnosed by heating).
In the absence of tuning to the channels of on-air or cable television, you should make sure that the software is correct, as well as in accordance with the ratings of the supply voltages at the terminals of the DVB-T2 & SAT tuner. It is also necessary to check the presence of pulses of data exchange between the tuner and the processor via the I2C bus using an oscilloscope.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Entrust repair to professionals with sufficient experience in the field of repair of electronic equipment.
The appearance of MainBoard T.MS6586.U801 is shown in the figure below:T.MS6586.U801
The appearance of the power supply
Key Features of HAIER LE55Q6500U:
Installed matrix (LED-panel) LSC550FN14-201.
The matrix control uses the Timing Controller (T-CON) 16Y_L55HU11APHTA6XSRV0.0.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the OCP8128 PWM controller. As power elements of the LED driver, keys of the 60R360Q type are used.
The necessary supply voltages for all nodes of the TV HAIER LE55Q6500U are generated by the TV5502-ZC02-01 power supply module or its analogs using TEA1716, SY8113B microchips and power switches of the BYC8X-600P, 13NM60 (PFC) type.
MainBoard - the main board (motherboard) is a module T.MS6586.U801, with the use of CPU chips, NAND Flash, DDR and others.
The DVB-T2 & SAT tuner allows you to receive television programs and tune to channels.
HAIER LE55Q6500U TV with LSC550FN14-201 LCD, 55 "(140 cm) diagonal size in 16: 9 format. The required screen brightness of 330 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 3000000: 1 is achieved by special control of the LEDs. V The technology for manufacturing the screen of this TV model is realized by LED LED backlighting. You can watch movies in the highest quality UHD at a resolution of 3840x2160 pixels in the 4K UHD standard.
The LE55Q6500U is equipped with SMART software, embedded applications and the ability to work on the Internet. Connecting to the Internet can be done via Wi-Fi. Supported media file formats: MP3, MPEG4, MKV, JPEG.
The power of the sound system 20 W (2x10 W) provides two speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, VGA, HDMI x3, USB x3, Ethernet (RJ-45), Wi-Fi. An output for connecting headphones is provided.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Overall dimensions: with stand 1235x778x252 mm, without stand 1235x716x111 mm.
TV Weight: with stand: 16.1 kg, without stand: 15.8 kg.
Attention! The LSC550FN14-201 panel of the HAIER LE55Q6500U LED TV is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also unsafe to get liquid on the screen. Sometimes one drop is enough if it flows down the glass onto the cables so that the TV becomes unrepairable.
