Technical description and composition of the PHILIPS 47PFL6877T TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 47PFL6877T / 60
Chassis / Version: QFU2.1E LA
Panel: LC470EUF FE P1
LED backlight: 6920L-0001C 2 * 63 led; cool: 6922L-0029A
LED driver (backlight): integrated into PSU
PWM LED driver: DDA009
Power Supply (PSU): DPS-130QP, DPS-119CP
PWM Power: NCP1608B (PFC), 2QS02G, S101 (6pin), DDA010 (Standby)
MainBoard: 310431365664 310432868323 3104 313 65664 3104 328 68323
IC MainBoard: FUSION120, H5TQ2G83BFR, H26M21001ECR, TAS5731P1
Tuner: SUT-RE214AN
Specifications 47PFL6877T
PHILIPS 47PFL6877T
General repair guidelines for TV LCD LED
Repair of the PHILIPS 47PFL6877T / 60 TV should begin with a careful external examination of all its constituent elements and modules. Using visible changes in the state of components, it is usually possible to determine the further direction of troubleshooting and localization of the defect before the necessary measurements are taken. In some cases, faulty elements can be seen with the naked eye, for example, charred resistors or swollen metal-ceramic capacitors, or electrolytic in rectifier filters. Ring cracks formed in the soldered terminals of transformers or heating elements of the circuit are also frequent sources of many malfunctions with a variety of external manifestations.
In the absence of any signs of operability, when the PHILIPS 47PFL6877T does not turn on and does not signal anything with the control lights on the panel, there is a possibility of a malfunction of the power supply module DPS-130QP, DPS-119CP of the TV. With the same manifestations, the power regulator of the control processor on the motherboard may be faulty. First of all, it is necessary to replace the swollen capacitors of the rectifier filters, if any. If the mains fuse is broken in the power supply, in most cases a breakdown of the power key (s) is detected, which can be integrated with the PWM controller, or a separate field-effect transistor can be used. The rectifier bridge diodes and the electrolytic capacitor of the mains rectifier filter should also be checked.
As a rule, the keys in switching power supplies (SMPS) are reliable enough and rarely fail for no reason to be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is verified by replacing it with a known good one.
In cases where the PHILIPS 47PFL6877T TV has lost its image, and the sound is there and all other functions are operational, there is a possibility of a malfunction of the LED driver (converter for powering the backlight LEDs of the LC470EUF FE P1 panel). When you turn on the TV, the image may appear briefly and disappear immediately. It must be borne in mind that with such manifestations the LEDs themselves also fail.
To check the health of the LEDs, as well as contact connections in the ruler circuit, it is necessary to disassemble the panel.
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.
Once again, remind users! Attempts at self-repair of a PHILIPS 47PFL6877T TV without the appropriate qualifications and experience can lead to its complete non-repairability!
Service manual and schematic diagram 47PFL6877T/60 Chassis QFU2.1E LA
Chassis QFU2.1E LA FOR MODELS:
32PFL6007H/12, 32PFL6007K/12, 32PFL6007T/12, 32PFL6087H/12, 32PFL6087K/12, 32PFL6087T/12
37PFL6007H/60, 37PFL6007H/12, 37PFL6007K/12, 37PFL6007T/12, 37PFL6777H/12, 37PFL6777K/12
42PDL6907H/12, 42PDL6907K/12, 42PDL6907T/12, 42PFL6007H/12/60, 42PFL6007K/12, 42PFL6007T/12/60, 42PFL6057H/12/60, 42PFL6057K/12, 42PFL6057T/12/60, 42PFL6067H/12/60, 42PFL6067K/12, 42PFL6067T/12/60, 42PFL6097H/12/60, 42PFL6097K/12, 42PFL6097T/12/60, 42PFL6687H/12/60, 42PFL6687K/12, 42PFL6687T/60, 42PFL6877H/12/60, 42PFL6877K/12, 42PFL6877T/12/60
47PDL6907H/12, 47PDL6907K/12, 47PDL6907T/12, 47PFL6007H/12/60, 47PFL6007K/12, 47PFL6007T/12/60, 47PFL6057H/12/60, 47PFL6057K/12, 47PFL6057T/12/60, 47PFL6067H/12/60, 47PFL6067K/12, 47PFL6067T/12/60, 47PFL6097H/12/60, 47PFL6097K/12, 47PFL6097T/12/60, 47PFL6687H/12/60, 47PFL6687K/12, 47PFL6687T/60, 47PFL6877H/12/60, 47PFL6877K/12, 47PFL6877T/12/60
55PFL6007H/12, 55PFL6007K/12, 55PFL6007T/12, 55PFL6097H/12, 55PFL6097K/12, 55PFL6097T/12
The appearance of MainBoard 310431365664 is shown in the figure below:310431365664
310431365664 can be used in TVs:
PHILIPS 32PFL6007T/12 (Panel LC320EUF FEP1 code 423), PHILIPS 32PFL6008T/60 (Panel LC320EUF (FE)(P1) code 423), PHILIPS 32PFL6087T/12 (Panel LC320EUF (FE)(P1)), PHILIPS 32PFL6087T/12 (Panel LC320EUF FE P1), PHILIPS 42PFL6007T/60 (Panel LC420EUF (FE)(P1)), PHILIPS 42PFL6057T/60 (Panel LC420EUF FC P1), PHILIPS 42PFL6097T/60 (Panel LC420EUF (FE)(P1) code 322 p/n: 932228895682), PHILIPS 42PFL6877T/60 (Panel LC420EUF (FE)(P1)), PHILIPS 47PFL6057T/60 (Panel LC470EUF FE P1 (LG/PH) B code 323 p/n: 932228896682), PHILIPS 47PFL6097T/60 (Panel LC470EUF (FE)(P1)), PHILIPS 47PFL6877T/60 (Panel LC470EUF FE P1), PHILIPS 55PFL6007T/12 (Panel C550EUF (FE)(P1)), PHILIPS 60PFL9607T/12 (Panel LK600D3LB63 (SRJ)), PHILIPS 42PFL6067T/12 (Panel LC420EUF (FE)(P1)), PHILIPS 47PFL6007K/12 (Panel LC470EUF (FE)(P1)).
PSU Advanced
The DPS-130QP power supply module is made using a Power Factor Correction (PFC) scheme to eliminate multiple AC harmonics introduced into the power supply by the device. The PFC assembly is a Step-Up Converter based on the NCP1608B PWM controller, which evenly distributes high-frequency impulses of the charging current of the electrolytic capacitor of the rectifier filter of the mains voltage over a period of 50 Hz. The current of its charge in this case will already be determined not by its reactance (usually 10-30 ohms for the network frequency), but by the elements of the converter. As a result, a change in the amplitude of the pulses (envelope) of the consumed current of the converter will repeat the shape and phase of the input sinusoidal voltage. The availability of an increased voltage (about + 380V) in the operating mode on the capacitor of the line filter indicates the serviceability of the PFC node.
The appearance of the power supply
Main features of the PHILIPS 47PFL6877T device:
Installed matrix (LED panel) LC470EUF FE P1.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by the DDA009 PWM controller.
The necessary supply voltages for all nodes of the PHILIPS 47PFL6877T TV are generated by the DPS-130QP power module or its analogs using NCP1608B (PFC), 2QS02G, S101 (6pin), DDA010 (Standby) microcircuits.
MainBoard - the main board (motherboard) is a module 310431365664, using chips FUSION120, H5TQ2G83BFR, H26M21001ECR, TAS5731P1 and others.
The SUT-RE214AN tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: LG Display
Model: LC470EUF-FEP1
Type: a-Si TFT-LCD, Panel
Diagonal size: 47 inch
Resolution: 1920x1080, FHD
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 1039.68x584.82 mm
Surface: Antiglare (Haze 1%), Hard coating (2H)
Brightness: 400 cd / m²
Contrast Ratio: 1600: 1
Display Colors: 16.7M / 1.06B (8-bit / 8-bit + Dithering), CIE1931 72%
Response Time: 5 (G to G); 8 (MPRT)
Frequency: 120Hz
Lamp Type: WLED Without Driver
Signal Interface: LVDS (4 ch, 8/10-bit), 92 pins
Voltage: 12.0V