Technical description and composition of the PHILIPS 19PFL5403D TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 19PFL5403D / 10
Chassis / Version: TCM 2.0E LA
Panel: M190Z1-L01 Rev. C1
Inverter (backlight): JSY-190406-B
PWM Inverter: TL494C, LM393
MOSFET Inverter: ME4542
Trans Inverter: HVT-086 x2
Power Supply (PSU): 40-PWL20C-PWI1XG
PWM Power: NCP1377B
MOSFET Power: 2SK2996
MainBoard: 40-LDMK35-MAE2XG
IC MainBoard: MT5335PU, 24C16, MX25L3205, WT6702F, SII9185AC-7U, MT8295AE, WM8501GED, TDA9886TS
Tuner: TDQG4-601A
Specifications 19PFL5403D
PHILIPS 19PFL5403D
General recommendations for repairing TV LCD
Possible malfunctions
- The PHILIPS 19PFL5403D TV does not turn on and does not show any signs of turning on, it does not respond to the control buttons or to the remote control.
Typically, with such manifestations, the defect is caused by faulty elements in the main 40-PWL20C-PWI1XG power supply module. In the absence of the necessary supply voltages in the secondary circuits of the converters, it is necessary to check the power switches (2SK2996) and rectifier diodes for a possible partial or complete breakdown.
In the event of breakdowns in the secondary circuits of the converter, it can usually fail in short circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse or current sensor at the source of the key most often breaks.
Mos-Fet power switches, used in switching power supplies, sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode or create an excess of the maximum permissible parameters of the switch. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. NCP1377B PWM controllers, in the absence of visible damage or explicit short-circuit between the terminals, are checked by replacing with new ones, or obviously working.
- There is no image, but there is sound, it reacts to the remote control. Or the image appears when you turn it on and immediately disappears
The defect can be caused by problems in the nodes or elements of the backlight of the display, or in the power supply of the lamps or inverter. If all the electrolytic capacitors of the filter according to the power supply of the inverter are working, make sure that the lamps are working, 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 circuits should be restored immediately after the repair is completed.
- The indicator blinks or glows constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the 40-LDMK35-MAE2XG motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). When repairing an MB board, you need to check its components MT5335PU, 24C16, MX25L3205, WT6702F, SII9185AC-7U, MT8295AE, WM8501GED, TDA9886TS. Defective items should be replaced. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
In the absence of tuning to the channels of on-air or cable television, you should make sure that the software is correct, as well as in accordance with the ratings of the supply voltage at the terminals of the TDQG4-601A tuner. It is also necessary to check the presence of pulses of data exchange between the tuner and the processor via the I2C bus using an oscilloscope.
TV users and owners need to remember that attempts to independently repair a PHILIPS 19PFL5403D TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!
Service manual and schematic diagram 19PFL5403S/60 Chassis TCM2.0E LA
MODELS: 19PFL5403D, 20PFL3403D, 22PFL5403D, 26PFL3403D, 26PFL5403D.
Power Supply SCHEMATIC -----------------> 40-PWL20C-PWH1XG
The appearance of the MainBoard 40-LDMK35-MAE2XG is shown in the figure below:40-LDMK35-MAE2XG
40-LDMK35-MAE2XG can be used in TVs:
PHILIPS 19PFL5403/60 (Panel M190Z1-L01 Rev.C1), PHILIPS 19PFL5403S/60 (Panel SM19Z11A), PHILIPS 20HFL3330D (Panel LC201V02 (SD)(D1)), PHILIPS 22PFL5403H/60 (Panel M220Z1-L03), PHILIPS 26PFL5403/60 26PFL5403S/60 (Panel V260B1-L11), PHILIPS 19PFL5403D/10 (Panel M190Z1-L01 Rev.C1).
The appearance of the power supply
Key Features of PHILIPS 19PFL5403D:
Installed matrix (LCD panel) M190Z1-L01 Rev. C1.
To power the backlight, an inverter JSY-190406-B is used, controlled by a PWM controller TL494C, LM393. The transformer HVT-086 x2 is installed in the inverter converter. Keys of type ME4542 are used as power elements of the inverter.
The necessary supply voltages for all nodes of the PHILIPS 19PFL5403D TV are generated by the 40-PWL20C-PWI1XG power supply module or its analogs using NCP1377B microcircuits and 2SK2996 power switches.
MainBoard - the main board (motherboard) is a 40-LDMK35-MAE2XG module, using chips MT5335PU, 24C16, MX25L3205, WT6702F, SII9185AC-7U, MT8295AE, WM8501GED, TDA9886TS and others.
The TDQG4-601A tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: CMO
Model: M190Z1-L01
Type: a-Si TFT-LCD, Panel
Diagonal size: 19.0 inch
Resolution: 1680x1050, WSXGA +
Display Mode: TN, Normally White, Transmissive
Active Area: 408.24x255.15 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 300 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 72%
Response Time: 1.5 / 3.5 (Tr / Td)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
