Technical description and composition of the PHILIPS 26PDL4906H TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 26PDL4906H / 60
Chassis / Version: TPM6.1E LA
Panel: LC260EXN (SD) (A3) code 136 p / n: 932228370682
LED driver (backlight): 715G5148-P01-H20-002U
PWM LED driver: MP1584EN (8)
Power Supply (PSU): 715G5148-P01-H20-002U 996510045691
PWM Power: LD7750RD (8)
MOSFET Power: K6A65D
MainBoard: 715G4979-M1A-000-005X 996510047376
Tuner: TDTK-G731D
Control: 242254990301
Specifications 26PDL4906H
PHILIPS 26PDL4906H
General repair guidelines for TV LCD LED
TV PHILIPS 26PDL4906H / 60, like many other electronic devices, it is advisable to start repairing by inspecting all external and internal elements. 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. Electrolytic capacitors of filters with a swollen casing, as well as ring cracks formed in the soldered leads of heating elements, or a layer of coal on burnt resistors sometimes tell the repairman the causes of the malfunction and possible consequences.
In the absence of any signs of operability, when the PHILIPS 26PDL4906H 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 715G5148-P01-H20-002U 996510045691 of the TV. With the same manifestations, the power regulator of the control processor on the motherboard may be faulty. When diagnosing and repairing the power supply, first of all, replace the swollen filter capacitors of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module - rectifier diodes and K6A65D transistors in the primary circuit.
Mos-Fet keys used in switching power supplies (SMPS) rarely fail for no reason to look for when checking other circuit elements. Often the breakdown is caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or by a break in the resistors in the stabilization circuits. The LD7750RD PWM controller chip (8) can also cause a breakdown of the power switch of the converter.
If the PHILIPS 26PDL4906H does not have an image, but there is sound and the TV is controlled by the remote control, there may be a malfunction in the backlight circuits of the LC260EXN (SD) (A3) 932228370682 panel code 136. LEDs or a power converter - LED driver may be malfunctioning. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to verify the operability of the electrolytic capacitors of the rectifier filter supplying the LED driver, and check the LEDs, connecting obviously known good diagnostics.
To check the health of the LEDs, as well as contact connections in the ruler circuit, it is necessary to disassemble the panel.
When diagnosing, it is necessary to take into account that it is impossible to check the open in the chain of LED lines without disassembling the panels using a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally, a current source.
When trying to repair the motherboard, you should first check the serviceability of linear stabilizers or power converters of microcircuits and, if necessary, update the software (software).
If the TV works normally from external devices, but does not tune into television channels, the TDTK-G731D may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals, as well as the power supply of varicaps (30-33V).
Owners of the 26PDL4906H TV are recommended for repairs to contact only qualified specialists with experience! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!
Service manual and schematic diagram 26PDL4906H/60 Chassis TPM6.1E LA
313912362611
313912362611 can be used in TVs:
PHILIPS 26HF5445/10 (Panel V260B1-L03 code 068 p/n: 932224937682), PHILIPS 37PFL7662D/12 (Panel T370HW02 V.1), PHILIPS 42PFL7662D/12 (Panel LC420WU5 code 093), PHILIPS 42PFL7682D/12 (Panel LC420WU5), PHILIPS 47PFL5522D/12 (Panel LC470WX1-SLA2 code 109 p/n: 932225331682 (LGPH) B ), PHILIPS 32PFL5522D/12 (Panel LK315T3LZ53).
Main features of the PHILIPS 26PDL4906H device:
Installed matrix (LED-panel) LC260EXN (SD) (A3) code 136 p / n: 932228370682.
The LED driver 715G5148-P01-H20-002U is used to power the backlight LEDs, controlled by the MP1584EN PWM controller (8).
The necessary supply voltages for all nodes of the PHILIPS 26PDL4906H TV are generated by the 715G5148-P01-H20-002U power module, or its analogs using LD7750RD microcircuits (8) and K6A65D type power switches.
MainBoard - the main board (motherboard) is a module 715G4979-M1A-000-005X.
The TDTK-G731D tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: LG Display
Model: LC260EXN-SDA3
Type: a-Si TFT-LCD, Panel
Diagonal size: 26.0 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 575.769x323.712 mm
Surface: Antiglare (Haze 10%), Hard coating (3H)
Brightness: 350 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 68%
Response Time: 6 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
