Technical description and composition of the PHILIPS 55PFL7606H TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 55PFL7606H / 12
Chassis / Version: Q522.2E LA
Panel: LC550EUF (SD) (F1) // LC550EUF (SD) (F2)
LED backlight: 3660L-0376A - 55 V6 Edge FHD-1 Rev1.0 1L / R-Type
T-CON: 6870C-0369C
LED driver (backlight): integrated into PSU
Power Supply (PSU): PSL55-3-D-FULL PLDK-P021A
MainBoard: 313912364172 3139 123 64172 // 313929714971 (313912365192 WK1101.3)
IC MainBoard: PNX8541E1 / 2416, ISP1564HL, NAND512W3A2CN6, AD8197, ELPIDA E2516AEBC-6E
Tuner: TD1716F / BHXP-3
Control: IR: GWA7.820.697-1 (V0.6)
Technical Specifications 55PFL7606H
PHILIPS 55PFL7606H
General repair guidelines for TV LCD LED
Repair of the PHILIPS 55PFL7606H / 12 TV should begin with a fault diagnosis, which involves a careful examination of the external and internal elements of the device. Often, by the external signs and nature of the damage to the elements, it becomes possible to draw some conclusions and determine a further algorithm for finding a defect before making the necessary measurements at control points. Experienced repairmen are often aware of the causes of the defect and the possible consequences, for example, from ring cracks in the soldering of the leads of the elements, as well as from swollen capacitors or resistors burnt to coal dust and other external indirect signs.
Sometimes the PHILIPS 55PFL7606H TV simply does not turn on. No control lights on the front panel are lit or blinking, the TV does not respond to the remote control and does not make any sounds or any signs of life when turned on. The most likely cause of the malfunction is the failure of the PSL55-3-D-FULL PLDK-P021A common power supply module. If it is working properly, you need to check the processor batteries on the SSB (Main Board). Diagnostics and repair of the common power supply should always begin with a check of the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for a breakdown, first of all, all power semiconductor elements of the converter and the diode bridge of the rectifier network, as well as a large electrolytic capacitor of the filter of the rectifier network.
In most cases, key breakdowns in switching power supplies (SMPS) do not occur for no reason and you should look for other faulty circuit elements that could provoke a defect. This can be dried electrolytic capacitors in the primary circuit, and faulty damper elements, as well as dangling resistors or punched semiconductor elements in the stabilization circuits. Possible defective PWM chip from the manufacturer.
Sometimes the PHILIPS 55PFL7606H TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the LC550EUF (SD) (F1) panel LED backlight converter, or a break in the LED circuit is possible. In such cases, first of all, it is necessary to verify the serviceability of all the electrolytic capacitors of the filter by supplying the LED driver itself, including in the power supply unit (power supply unit).
To check the health of the LEDs and contact connections in their power circuit, the panel must be disassembled.
A break in the line of LEDs connected in series cannot be detected with a multimeter or tester without disassembling the panel. To open all the transitions, several tens of volts are needed, and it is best to use a current source for such purposes.
We recommend the owners of the 55PFL7606H TV for repair only to qualified specialists with experience! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!
Service manual and schematic diagram 55PFL7606H/12 Chassis Q522.2E LA
The appearance of MainBoard 313912364172 is shown in the figure below:313912364172
313912364172 can be used in TVs:
PHILIPS 32PFL5403S/60 (Panel LC320WXN SAB1), PHILIPS 55PFL7606H/12 (Panel LC550EUF(SD)(F1)), PHILIPS 37PFL5603D/10 (Panel T370HW02 ).
The appearance of the power supply
Main features of the PHILIPS 55PFL7606H device:
Installed matrix (LED-panel) LC550EUF (SD) (F1) or LC550EUF (SD) (F2).
The matrix control uses the Timing Controller (T-CON) 6870C-0369C.
To power the backlight LEDs, a converter is used, combined with a power supply.
The formation of the necessary supply voltages for all nodes of the PHILIPS 55PFL7606H TV is carried out by the PSL55-3-D-FULL power supply module, or its analogs.
MainBoard - the main board (motherboard) is a module 313912364172, using chips PNX8541E1 / 2416, ISP1564HL, NAND512W3A2CN6, AD8197, ELPIDA E2516AEBC-6E and others.
The tuner TD1716F / BHXP-3 provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: LG Display
Model: LC550EUF-SDF1
Type: a-Si TFT-LCD, Panel
Diagonal size: 55 inch
Resolution: 1920x1080, FHD
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 1209.6x680.4 mm
Surface: Antiglare (Haze 10%), Hard coating (2H)
Brightness: 400 cd / m²
Contrast Ratio: 1600: 1
Display Colors: 16.7M / 1.06B (8-bit / 8-bit + Dithering)
Response Time: 5 (G to G); 6 (MPRT)
Frequency: 120Hz
Lamp Type: WLED Without Driver
Signal Interface: LVDS (4 ch, 8/10-bit), 92 pins
Voltage: 12.0V