Technical description and composition of the PHILIPS 24PHT5619 TV, panel type and modules used. The composition of the modules.
PHILIPS LED
Model: 24PHT5619 / 60
Chassis / Version: TPM14.1E LA
Panel: TPM236H3
LED driver (backlight): integrated into PSU
PWM LED driver: PF7001S
MOSFET LED driver: MTD55N10Q8
Power Supply (PSU): 715G6297-P01-000-001E
PWM Power: PF6200
MOSFET Power: TK6A65D
MainBoard: 715G6165-M02-000-005K WK: 1343
IC MainBoard: CPU: MT5580PUEI; DRAM: K4B4G1646B-HCK0; NAND Flash: TC58NVG2S3ETAI0; SPI Flash: CAT24C128WI
Tuner: TDSY-G720D
Specifications 24PHT5619
PHILIPS 24PHT5619
General recommendations for TV LCD LED repair
Possible manifestations of defects
- PHILIPS 24PHT5619 TV does not turn on. There are no signs of operability. The indicators on the front panel do not light or blink, the TV does not respond to the control buttons.
In such cases, the 715G6297-P01-000-001E power supply usually fails. It is necessary to measure its output supply voltages, and in their absence, check the serviceability of the power switches (TK6A65D) of the converters and rectifier diodes for the probability of breakdown in semiconductor PN junctions.
In case of breakdowns of semiconductors in the secondary circuits, the converter can usually operate in an emergency in the short-circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse often breaks.
Mos-Fet power switches used in switching power supplies sometimes fail due to a malfunction of any other elements that can disable it in the key mode, or create an excess of the maximum permissible key parameters. These can be elements supplying a PWM regulator, frequency setting or damper circuits, or elements of negative feedback in the stabilization circuit. PWM controllers PF6200, in the absence of visible damage or outright short circuits between the terminals, are checked by replacing them with new ones, or known to be working properly.
- There is no image, the screen is black, there is sound, when the screen is illuminated outside, you can sometimes see barely noticeable outlines of the image.
The backlight of the matrix (LED panel) is usually faulty in these cases. Often the cause of a malfunction is the lack of current in the LED circuit, for example, their open or short circuit, or a violation of the contact connections of the connectors.
It is impossible to check the LED bars for a break without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts is required, and ideally a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters tend to light one 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as an indicator of serviceability. In faulty LEDs, the zener diode will either be cut off, or pierced in the K / Z.
If PHILIPS 24PHT5619 has no picture, but there is sound, often the TPM236H3 display backlight simply does not work. Moreover, in LED TVs, the LEDs inside the panel usually fail, less often the LED driver.
In such cases, you can see a barely noticeable image with a successful hit of external light on the screen.
Replacing the LEDs requires disassembling the TPM236H3 LCD panel - a process that requires experience and qualifications from the master. We do not recommend doing such work on your own to the owners of TVs and craftsmen who do not have experience in repairing LCD panels
If there is no image, and the backlight is on, the screen becomes slightly lighter when turned on, and in an open TV you can see the light through the holes in the panel case.
In this case, the panel may also be faulty - damage to strips, loops, for example, as a result of moisture ingress after unsuccessful washing of the screen, the T-CON (Timing Controller) board may be faulty. But often the main board MainBoard 715G6165-M02-000-005K turns out to be faulty; a software failure is also possible.
Then, first of all, you need to check the panel supply voltage, fuses on the T-CON board, as well as the supply and reference voltages of the column and line drivers - VGH, VGL, Vcom.
If these measurements are within the normal range, it is necessary to use an oscilloscope to trace the passage of LVDS signals from MainBoard 715G6165-M02-000-005K, as well as synchronizing signals to loops with drivers.
Flooded or unsuccessfully washed screens of LED-TVs can be restored, in about half of the cases, usually if significant damage has not formed in the loops and panel strips.
- The TV does not turn on, the indicator signals the standby or operating mode, or blinks.
Repair or diagnostics of the 715G6165-M01-000-005N 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). If it is not possible to replace the MB (SSB) board, it is necessary to check the serviceability of its elements - CPU: MT5580PUEI; DRAM: K4B4G1646B-HCK0; NAND Flash: TC58NVG2S3ETAI0; SPI Flash: CAT24C128WI. Defective components must be replaced.
If there is no reception of television channels, but the TV is working properly from external devices, first of all, you need to check the supply voltage of the TDSY-G720D tuner and update the software. I2C communication pulses must be monitored with an oscilloscope.
We remind users again! Attempts to repair the PHILIPS 24PHT5619 TV without proper qualifications and the necessary experience can lead to its complete non-repairability!
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> FOR Chassis TPM14.1E LA FOR MODELS 24PHK5619/12, 24PHT5619/12, 32PHH4509/88, 32PHK4509/12, 32PHT4509/12, 32PHT4509/60, 32PFH5509/88, 32PFK5509/12, 32PFT5509/12, 32PFT6549/60, 32PFT6559/60, 40PFH4509/88, 40PFK4509/12, 40PFT4509/12, 40PFT4509/60, 40PFH5509/88, 40PFK5509/12, 40PFT5509/12, 42PFH5609/88, 42PFK5609/12, 42PFT5609/12, 42PFT5609/60, 42PFH6109/88, 42PFK6109/12, 42PFT6109/12, 42PFH6309/88, 42PFK6309/12, 42PFT6309/12, 42PFT6309/60, 42PFT6569/60, 47PFH5609/88, 47PFT5609/12, 47PFT5609/60, 47PFH6109/88, 47PFK6109/12, 47PFT6109/12, 47PFH6309/88, 47PFK6309/12, 47PFT6309/12, 47PFT6309/60, 47PFT6569/60, 48PFH5509/88, 48PFK5509/12, 48PFT5509/12, 50PFH4509/88, 50PFK4509/12, 50PFT4509/12, 55PFH5509/88, 55PFK5509/12, 55PFT5509/12, 55PFH5609/88, 55PFT5609/12, 55PFH6109/88, 55PFK6109/12, 55PFT6109/12, 55PFH6309/88, 55PFK6309/12, 55PFT6309/12, 55PFT6569/60.
The appearance of the MainBoard 715G6165-M02-000-005K is shown in the figure below:
715G6165-M02-000-005K
External view of the power supply
715G6297-P01-000-001E:
715G6297-P01-000-001E
The main features of the PHILIPS 24PHT5619 device:
Installed matrix (LED panel) TPM236H3.
A converter combined with a power supply is used to power the backlight LEDs, and is controlled by a PF7001S PWM controller. The keys of the MTD55N10Q8 type are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the PHILIPS 24PHT5619 TV is carried out by the 715G6297-P01-000-001E power module, or its analogs using PF6200 microcircuits and power switches of the TK6A65D type.
MainBoard - the main board (motherboard) is a 715G6165-M02-000-005K module, using CPU chips: MT5580PUEI; DRAM: K4B4G1646B-HCK0; NAND Flash: TC58NVG2S3ETAI0; SPI Flash: CAT24C128WI and others.
The TDSY-G720D tuner provides reception of television programs and tuning to channels.
PHILIPS 24PHT5619 TV with LCD TPM236H3, diagonal size 24 "(61 cm) 16: 9. The required brightness of the screen 350 cd / m2 is provided by LED backlighting. The display technology of the model is implemented with LED backlighting.
TPM236H3 sensor and MainBoard 715G6165-M02-000-005K software provide high quality HD viewing at 1366x768 pixels in 720p (HD Ready).
The 24PHT5619 TV is equipped with SMART software and the ability to work on the Internet. The connection to the network can be carried out via Wi-Fi wireless connection. The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in the 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
Speaker power 10 W (2x5 W) is provided by two speakers. Uses NICAM stereo processing system and Sound Surround function.
An external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), SCART, RGB, VGA, HDMI x2, USB, Ethernet (RJ-45), Wi-Fi, WiDi, Miracast. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768. The digital tuner is capable of receiving television channels in the DVB-T, DVB-T2, DVB-C standards.
The TV uses a 715G6297-P01-000-001E power supply.
Dimensions: with stand 552x339x122 mm, without stand 552x332x55 mm.
TV weight: with stand: 3.7 kg, without stand: 3.4 kg.
Attention! The TPM236H3 panel of the PHILIPS 24PHT5619 LED TV is an expensive and unreliable element.
Do not allow any impact 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 unrepairable.