Technical description and composition of the PHILIPS 37PFL9632D TV, panel type and applicable modules. The composition of the modules.PHILIPS
Model: 37PFL9632D / 10
Chassis / Version: Q548.1E LA
Panel: LC370WU3 (SL) (E1)
T-CON: 6870C-0128B
Inverter (backlight): 6632L-0464A PNEL-T706A
PWM Inverter: OZ9966SN
MOSFET Inverter: K4075
Trans Inverter: U-IT3250-EL37-IN-245 0784
Power Supply (PSU): integrated into MainBoard
MainBoard: 3104.313.62262 3104.303.51142 S 310432853602
IC MainBoard: PNX5050EH / M1, PNX8541E / 0434
Tuner: TD1716F / IHXP-3
Specifications 37PFL9632D
PHILIPS 37PFL9632D
General recommendations for repairing TV LCD
Possible manifestations of defects
- PHILIPS 37PFL9632D does not turn on and does not show any signs of operability. Does not blink indicators and does not respond to any control buttons.
In such cases, the malfunction should be sought first of all in the power module, which is combined in this model with the MainBoard main board. It is necessary to measure its secondary output voltages, and in case of their absence, check the serviceability of the power switches of the converters and rectifier diodes for a short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during short circuit in the elements of the primary circuit, the mains fuse usually breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, power supply, frequency-setting, damper ... as well as elements of the Negative Stabilization Feedback. The PWM chip can also cause a malfunction of the power switch of the converter and is checked by replacement.
- There is no image, but there is sound and reaction to commands from the remote control. Or the image appears immediately after turning on and disappears.
These manifestations can be triggered by the power module, or by inverter defects, as well as by the distortion of the currents in the lamps due to their uneven wear. If all the electrolytic capacitors of the filter according to the inverter power supply are serviceable, you should make sure that the lamps are in good working condition, then you need to check the converter keys and the secondary windings of the transformers.
Sometimes, for diagnostic purposes, it is necessary to disable the inverter protection. In such cases, special care must be taken during work, and the protection circuit should be restored immediately after the repair is completed.
- The TV does not turn on, the indicator indicates standby or operating mode, or blinks.
Repair or diagnostics of the 3104.313.62262 motherboard should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software).
If the TV works normally from external devices, but does not tune into television channels, the TD1716F / IHXP-3 tuner may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding conclusions. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the cause of the inoperability of the tuner may be a software failure.
Attention! For users and owners of 37PFL9632D TVs who do not have the appropriate qualifications, knowledge and experience, we strongly recommend against attempting self-repair in order to avoid negative consequences that could lead to complete non-serviceability of the device.
Service manual and schematic diagram 37PFL9632D/10 TB1C Chassis Q548.1E LA
The appearance of MainBoard 3104.313.62262 is shown in the figure below:3104.313.62262
Main features of the PHILIPS 37PFL9632D device:
Installed matrix (LCD panel) LC370WU3 (SL) (E1).
The matrix control uses the Timing Controller (T-CON) 6870C-0128B.
To power the backlight, an inverter 6632L-0464A is used, it is controlled by the PWM controller OZ9966SN. A transformer U-IT3250-EL37-IN-245 0784 is installed in the inverter converter. Keys of the K4075 type are used as power elements of the inverter.
The power module is combined with the MainBoard and is made according to the flyback AC / DC voltage converter circuit.
MainBoard - the main board (motherboard) is a module 3104.313.62262, using chips PNX5050EH / M1, PNX8541E / 0434 and others.
The TD1716F / IHXP-3 tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC370WU3-SLE1
Type: a-Si TFT-LCD, Panel
Diagonal size: 37 inch
Resolution: 1920x1080, FHD
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 819.36x460.89 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 1.07B (8-bit + Hi-FRC), CIE1931 72%
Response Time: 8 (G to G)
Frequency: 120Hz + 120Hz
Lamp Type: EEFL Embedded (Inverter)
Signal Interface: LVDS (4 ch, 10-bit), 92 pins
Voltage: 12.0V