Monday, 3 February 2020

REPAIR / SERVICING TV PHILIPS 47PFL7606H

Technical description and composition of the PHILIPS 47PFL7606H TV, type of panel and applicable modules. The composition of the modules.
PHILIPS LED
Model: 47PFL7606H / 60
Chassis / Version: Q552.2E LA
Panel: LC470EUF (SD) (F2)
LED backlight: 3660L-0369A 47inch V6 Edge FHD REV1.0 1 L / R-Type
T-CON: 6870C-0358A VER1.0
LED driver (backlight): integrated into PSU
PWM LED driver: DDA009
Power Supply (PSU): DPS-139AP
PWM Power: NCP1608B (PFC), S101, DDA010, 2QS02G
MainBoard: 313912365182 WK1101.3 BD 313912365192 MA 143.3AI1.B 4000091 313929714961
IC MainBoard: PNX85537, 29F4C08ABADA, TPA3120D2
Tuner: TH2603 // TH2627
Control: IR: GWA7.820.697-1 (V0.6)
Specifications 47PFL7606H
PHILIPS 47PFL7606H
General repair guidelines for TV LCD LED
Possible malfunctions
- PHILIPS 47PFL7606H does not turn on, the indicators on the front panel do not light or flash. The TV does not respond to the control buttons and the remote control.
With such manifestations, a malfunction is most likely detected in the DPS-139AP 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 case of diode breakdowns in the secondary circuits, the converter can operate in emergency short-circuit mode without output voltages, and during short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor at the source of the key usually breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. PWM circuits NCP1608B (PFC), S101, DDA010, 2QS02G are usually checked by replacing with new ones, or obviously working.
- There is no image, but there is sound and reaction to the remote control. Or for a second, the image may appear immediately after switching on.
Usually in such cases, a malfunction is detected in the backlight nodes of the LED panel. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
It should be remembered that it is not possible to determine the open circuit in the LED lines without disassembling the panels with a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required. Then it is necessary to open the panel and check each LED separately with a multimeter. If the capabilities of your multimeter do not allow you to open the LED in the forward direction or dual LEd are used, then the PN junction of the emergency zener diode can indirectly serve as a health indicator. In case of LED-a failure, the zener diode PN junction will either be cut off or broken into short-circuit.
- The indicator on the front panel blinks, the TV does not turn on in the operating mode, it does not respond to the remote control.
Repair or diagnostics of the motherboard 313912365182 should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software). Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing elements PNX85537, 29F4C08ABADA, TPA3120D2 requires the necessary training and professional skills in repairing modules at the component level. Problems associated with the use of BGA soldering technologies can sometimes be diagnosed by warming up.
Tuner malfunction TH2603 // TH2627 is established after checking the software and all supply voltages at its terminals. The data exchange of the tuner with the processor via the I2C bus can be controlled by an oscilloscope.
Attention to users! Self-repair of a PHILIPS 47PFL7606H TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!



Service manual and schematic diagram 47PFL7606H/60 Chassis Q552.2E LA


FOR MODELS:
32PFL6606H/12, 32PFL6606H/60, 32PFL6606K/02, 32PFL6606M/08, 32PFL6626H/12, 32PFL6626K/02, 32PFL6626M/08, 32PFL6636H/12, 32PFL6636K/02, 32PFL6636M/08, 32PFL7406H/12, 32PFL7406K/02, 32PFL7406M/08, 32PFL7476H/12, 32PFL7476K/02, 32PFL7486H/12, 32PFL7486K/02, 32PFL7486M/08, 32PFL7496H/12, 32PFL7496K/02, 37PFL6606H/12, 37PFL6606H/60, 37PFL6606K/02, 37PFL6606M/08 , 40PFL6606H/12, 40PFL6606H/60, 40PFL6606K/02, 40PFL6606M/08, 40PFL6626H/12, 40PFL6626K/02, 40PFL6626M/08, 40PFL6636H/12, 40PFL6636K/02, 40PFL6636M/08, 42PFL7406H/12, 42PFL7406K/02, 42PFL7406M/08, 42PFL7456H/12, 42PFL7456K/02, 42PFL7456M/08 , 42PFL7486H/12, 42PFL7486K/02, 42PFL7486M/08, 42PFL7606H/12, 42PFL7606K/02, 42PFL7606M/08, 42PFL7666H/12, 42PFL7666K/02, 42PFL7676H/12, 42PFL7676K/02, 42PFL7696H/12, 42PFL7696M/08, 46PFL6606H/12, 46PFL6606H/60, 46PFL6606K/02, 46PFL6606M/08, 46PFL6626H/12, 46PFL6626K/02, 47PFL7606H/12, 47PFL7606K/02, 47PFL7606M/08, 47PFL7666H/12, 47PFL7666K/02, 47PFL7696H/1, 47PFL7696K/02, 47PFL7696M/08, 55PFL6606H/12, 55PFL6606H/60, 55PFL6606K/02, 55PFL6606M/08



 The appearance of MainBoard 313912365182 is shown in the figure below:
313912365182
313912365182 can be used in TVs:
PHILIPS 47PFL7606H / 60 (Panel LC470EUF (SD) (F2)), PHILIPS 32PFL7606H / 12 (Panel LC320EUF (SD) (F2)).
The appearance of the power supply
Main features of the PHILIPS 47PFL7606H device:
Installed matrix (LED-panel) LC470EUF (SD) (F2).
The matrix control uses the Timing Controller (T-CON) 6870C-0358A.
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 47PFL7606H TV are generated by the DPS-139AP power module or its analogs using NCP1608B (PFC), S101, DDA010, 2QS02G microcircuits.
MainBoard - the main board (motherboard) is a module 313912365182, using chips PNX85537, 29F4C08ABADA, TPA3120D2 and others.
Tuner TH2603 // TH2627 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG Display
Model: LC470EUF-SDF2
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 10%), Hard coating (2H)
Brightness: 400 cd / m²
Contrast Ratio: 1600: 1
Display Colors: 16.7M / 1.06B (8-bit / 8-bit + FRC), CIE1931 72%
Response Time: 5.0 (Typ.) (G to G); 6 (MPRT)
Frequency: 120Hz + 120Hz
Lamp Type: WLED Without Driver
Signal Interface: LVDS (4 ch, 8/10-bit), 92 pins
Voltage: 12.0V