Technical description and composition of the PANASONIC TX-40FSR500 TV, panel type and modules used. The composition of the modules.PANASONIC LED
Model: TX-40FSR500
Chassis / Version: KM41
Panel: 400HJ9-MD1
LED backlight: IC-D-HWBJ40D660 - LED 6V
T-CON: 6B01M002B700R & 6B01M001JC00R
LED driver (backlight): integrated into PSU
PWM LED driver: C0ZBZ0002593
Power Supply (PSU): TNP4G628 1 P TNP4G628DG
PWM Power: FA6B02N, BD9E102FJ, FA5696N (C0DBBYY00058)
MainBoard: TNP4G633 1 A
IC MainBoard: PU: MT5581P
Tuner: 24CIL 112A C1AB00004164 DVB-T / T2 / C
Control: IR: TNPA6379 1 K, WiFi: DNUA-P75B N5HBZ0000120
TX-40FSR500 Specifications
PANASONIC TX-40FSR500
General recommendations for TV LCD LED repair
Possible malfunctions
- TV PANASONIC TX-40FSR500 does not turn on and does not give any signs of turning on, does not respond to control buttons and to the remote control.
Usually, with similar manifestations, the defect is caused by faulty elements in the main TNP4G628 power supply module. Then you should measure its output voltages and, in case of their complete or partial absence, it is necessary to check the serviceability of the power switches and rectifier diodes of the converters for a possible 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 in the event of a short circuit in the power elements of the primary circuit, the mains fuse and / or the current sensor in the source of the key usually breaks off.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements, which can disable it in key mode, or provoke an excess of the maximum current or voltage values. These can be circuits supplying the PWM controller, damper or frequency setting circuits, or OOS (negative feedback) elements in the stabilization circuit. PWM controllers (PWM) FA6B02N, BD9E102FJ, FA5696N (C0DBBYY00058), in the absence of external damage and short circuit between the terminals, are checked by replacing them with known good ones.
- There is no picture, but there is sound and reaction to commands from the remote control. Or the image appears immediately after switching on and disappears.
The backlight of the matrix (LED panel) is usually faulty in these cases. The reason for this may be an open circuit in the LED circuit, or a problem in stabilizing their power supply.
It is impossible to check the line of series-connected LEDs without a special current source, and it is unsafe for them to use any voltage sources above 12V for this purpose. Then all that remains is to open the panel and check each LED separately. Usually, Chinese multimeters with 9V power supply lightly light one 3-volt LED, if you connect the probes to it in the forward direction, the red probe to the anode, the black one to the cathode. For dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of the LED health. In the event of a malfunction of the LED, its zener diode will either be cut off, or broken through in the K / Z.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals the standby mode.
Repair or diagnostics of the TNP4G633 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). Repair of the board and replacement of PU: MT5581P microcircuits are made if the necessary equipment and the corresponding element base are available. Malfunctions associated with the use of BGA soldering technologies can be localized by the warm-up method.
Before replacing the C1AB00004164 DVB-T / T2 / C tuner, if there is no tuning to the channels, you must first check the software and the supply voltage at its outputs. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
Attention! Users and owners of TX-40FSR500 TVs who do not have the appropriate qualifications, knowledge and experience are strongly discouraged from attempting to repair themselves in order to avoid negative consequences that may lead to complete non-repairability of the device.
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> PANASONIC TX-40FSR500 Chassis KM41
MainBoard TNP4G633 is shown in the figure below:TNP4G633
External view of the power supply
Main features of the PANASONIC TX-40FSR500 device:
Installed matrix (LED panel) 400HJ9-MD1.
Matrix control uses Timing Controller (T-CON) 6B01M002B700R.
To power the backlight LEDs, a converter combined with a power supply is used, controlled by a PWM controller C0ZBZ0002593.
The formation of the necessary supply voltages for all nodes of the PANASONIC TX-40FSR500 TV is carried out by the TNP4G628 power module, or its analogs using the FA6B02N, BD9E102FJ, FA5696N (C0DBBYY00058) microcircuits.
MainBoard - the main board (motherboard) is a TNP4G633 module, using PU chips: MT5581P and others.
Tuner 24CIL 112A C1AB00004164 DVB-T / T2 / C provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: INNOLUX
Model: V400HJ9-MD1
Type: a-Si TFT-LCD, Panel
Diagonal size: 40 inch
Resolution: 1920x1080, FHD
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 878.112x485.352 mm
Surface: Antiglare (Haze 1%), Hard coating (3H)
Brightness: 300 cd / m²
Contrast Ratio: 5000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 9.5 (G to G)
Frequency: 60Hz
Lamp Type: WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
If the TV malfunctions during operation, you should not forget about the manufacturer's (seller's) warranty obligations, which are indicated in the accompanying documents.
If the PANASONIC TX-40FSR500 does not turn on or turns off, it is sometimes useful to check the sockets and extension cords where the TV is connected to the network.
If the PANASONIC TX-40FSR500 does not respond to commands from the remote control, but the control buttons on the panel work, there is a high probability of the remote control malfunction (the remote control does not work). It is advisable to check or replace the batteries in it.
If, while watching terrestrial or cable programs, you receive a no-signal (no signal) alert, check the antenna or cable connection.
You can make sure the TV is working from other external signal sources.
If there is no sound when watching analogue TV programs, you should check the sound system for Russia D / K (6.5 MHz), for Europe B / G (5.5 MHz) in the settings. In modern TVs for setting color and sound standards, the region is usually chosen - for "East Europe" (Eastern Europe).
If PANASONIC TX-40FSR500 freezes, does not respond to the remote control and control panel buttons, sometimes Reset can help - rebooting the processor. To do this, you must disconnect the TV from the network by pulling out the power plug from the outlet, and turn it back on after 15-20 seconds.
TV PANASONIC TX-40FSR500 with LCD display 400HJ9-MD1, diagonal size 40 "(102 cm) 16: 9 format. The technology of manufacturing the screen of this TV model is realized with LED backlighting.
The 400HJ9-MD1 panel and TNP4G633 motherboard firmware provide HD and Full HD viewing at 1920x1080 pixels in 1080p (Full HD) graphics. Graphic image processing is carried out using modern High Dynamic Range (HDR) technologies with an extended range of brightness gradations.
The TX-40FSR500 TV is equipped with SMART software, built-in applications and the ability to work on the Internet. Internet connection can be made via Wi-Fi wireless connection. Multimedia file formats supported by the video processor: MP3, WMA, MPEG4, HEVC (H.265), MKV, JPEG.
The power of the acoustic audio system is 20 W (2x10 W), provided by two speakers. Uses NICAM stereo signal system and Sound Surround function.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, HDMI x2, USB x2, Ethernet (RJ-45), Wi-Fi, Miracast. A headphone output is provided for individual listening.
The digital tuner is capable of receiving terrestrial and cable channels in the DVB-T MPEG4, DVB-C, DVB-T2, DVB-S2 standards.
The power consumed by the TV in operating mode from the network is 77 watts.
Dimensions: with stand 902x569x239 mm, without stand 902x521x88 mm.
TV weight: with stand: 8.5 kg, without stand: 8 kg.
Attention! The panel 400HJ9-MD1 of the PANASONIC TX-40FSR500 LED TV is its most expensive element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is 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 unrepairable.