Technical description and composition of the TELEFUNKEN TF-LED48S39T2S TV, panel type and modules used. The composition of the modules.TELEFUNKEN LED
Model: TF-LED48S39T2S
Chassis / Version: MSA6284-ZC01-01
Panel: LCS480HN08-8 // LSC480HN10
LED backlight: 300mA 130V, 2 channels
T-CON: LCS480HN08-802
LED driver (backlight): integrated into PSU
PWM LED driver: OCP8128
MOSFET LED driver: 60R360Q
Power Supply (PSU): TV5502-ZC02-01
PWM Power: TEA1716, SY8113B
MOSFET Power: 13NM60 (PFC), BYC8X-600P (8A 600V)
MainBoard: MSA6284-ZC01-01
IC MainBoard: CPU: MSD6A628VXM (Cortex A7, 1.15 GHz, ARMv7), EMMC: THGBMFG6C1LBAIL, DRAM: K4B4G16460-BCK0
Tuner: DVB-T2: MSB102KT
TF-LED48S39T2S Specifications
TELEFUNKEN TF-LED48S39T2S
General recommendations for TV LCD LED repair
Possible manifestations of defects
- TV TELEFUNKEN TF-LED48S39T2S does not turn on and does not give any signs of turning on, does not respond to control buttons and to the remote control.
In some of these cases, a malfunction is detected in the TV5502-ZC01-01 power supply module. It is necessary to measure its secondary output voltages, and if they are absent, check the power switches and rectifier diodes in the converters for a short circuit.
In the event of diode breakdowns in the secondary circuits, the converter can operate in an emergency mode of short circuit without output voltages, and with a short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor in the source of the key usually breaks off.
Breakdown of Mos-Fet switches used in switching power supplies is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM regulator, in frequency-setting or damper circuits, as well as in negative feedback stabilization. PWM microcircuits (PWM) are usually checked by replacing them with new ones, or knowingly working.
- There is no picture, but there is sound and reaction to the remote control. Or the image may appear for a second immediately after switching on.
Usually, in such cases, a malfunction is detected in the nodes of the backlight of the LED panel. The reason may be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
When trying to detect a break in the LED lines, it should be borne in mind that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
- The TV does not go into operation, does not respond to the remote control. The indicator on the front panel is on or blinking.
Repair or diagnostics of the MSA6284-ZC01-01 motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). Complex repair of MB (SSB) is possible only in a service center with the necessary equipment. Checking or replacing CPU elements: MSD6A628VXM (Cortex A7, 1.15 GHz, ARMv7), EMMC: THGBMFG6C1LBAIL, DRAM: K4B4G16460-BCK0 requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can sometimes be diagnosed by the warm-up method.
Before changing the tuner DVB-T2: MSB102KT, if it is not possible to tune to TV channels, you should make sure that there are supply voltages, which must be measured at the corresponding terminals of the tuner and check the software for correctness. The pulses of data exchange between the tuner and the processor can be monitored with an oscilloscope
Remember! Attempts to self-repair the TELEFUNKEN TF-LED48S39T2S TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> TV5502-ZC02-01 Power supply
The appearance of the MainBoard MSA6284-ZC01-01 is shown in the figure below:MSA6284-ZC01-01
MSA6284-ZC01-01 can be used in TVs:
MYSTERY MTV-4331LTA2 (Panel FullHD_CMO216_H1L01), TELEFUNKEN TF-LED48S39T2S (Panel LCS480HN08-8).
External view of the power supply
Main features of the TELEFUNKEN TF-LED48S39T2S device:
Installed matrix (LED panel) LCS480HN08-8 or LSC480HN10.
Matrix control uses the LCS480HN08-802 Timing Controller (T-CON).
To power the backlight LEDs, a converter combined with a power supply is used, controlled by an OCP8128 PWM controller. The keys of the 60R360Q type are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the TELEFUNKEN TF-LED48S39T2S TV is carried out by the TV5502-ZC02-01 power module, or its analogs using TEA1716, SY8113B microcircuits and power switches of the 13NM60 (PFC), BYC8X-600P (8A 600V) type.
MainBoard - the main board (motherboard) is an MSA6284-ZC01-01 module, using CPU chips: MSD6A628VXM (Cortex A7, 1.15 GHz, ARMv7), EMMC: THGBMFG6C1LBAIL, DRAM: K4B4G16460-BCK0 and others.
Tuner DVB-T2: MSB102KT provides reception of television programs and tuning to channels.
TELEFUNKEN TF-LED48S39T2S TV with LSC480HN10 LCD, 48 "(122 cm) 16: 9. Brightness of the screen of 300 cd / m² is provided by LED backlight. Contrast, as the ratio of maximum brightness to minimum, is 4000: 1 The technology for manufacturing the screen of this TV model is realized with LED backlighting.The design and technical capabilities of the TV provide viewing of broadcasts and films in high quality HD at a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD).
TF-LED48S39T2S TV has built-in SMART software and pre-installed Android operating system. Internet connection can be made via Wi-Fi wireless connection. Supported media file formats: MP3, WMA, MPEG4, Xvid, MKV, JPEG.
Speaker power of 16 W (2x8 W) is provided by two speakers. Uses NICAM stereo signal processing system and Sound Surround function.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, HDMI x3, USB x3, Ethernet (RJ-45), Bluetooth, Wi-Fi. A headphone output is provided.
The digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Dimensions: With stand 1082x675x260 mm, Without stand 1083x638x69 mm.
Attention! The LSC480HN10 panel of the TELEFUNKEN TF-LED48S39T2S LED TV is an expensive and unreliable element.
Do not allow any impacts on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV non-repairable.