Technical description and composition of the PHILIPS 22PFL3403S TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 22PFL3403S / 60
Chassis / Version: TCM1.0E LA
Panel: M220Z1-L03 Rev C1
Inverter (backlight): JSY-190406-B 996510016908 INVPSU POWER SUPPLY UNIT BLB MT00 / MT35 / INVERTER PSU
PWM Inverter: TL494C (16) LM493 (SO8)
MOSFET Inverter: ME4542 (SO8)
Trans Inverter: HVT-086
Power Supply (PSU): 40-PWL20C-PWI1XG 996510036276
PWM Power: NCP1377 (PWM flyback 8pin)
MOSFET Power: 2SK2996
MainBoard: 40-MT01EU-MAF2XG
IC MainBoard: MT8200ALE S29AL016M K4S641632K
Tuner: TEDE9-2C2B
Control: 2422 549 01911
Technical Specifications 22PFL3403D
PHILIPS 22PFL3403S
General recommendations for repairing TV LCD
Like all other televisions, it is advisable to start the PHILIPS 22PFL3403S / 60 with a careful inspection of both external and internal elements and modules. Often, by visible changes, it is possible to determine the further direction of troubleshooting and localization of the defect before the start of the acquisition of oscillograms and the necessary measurements. Elements with visible damage, for example, capacitors swelled up after boiling the electrolyte, charred resistors in certain nodes of the circuit, as well as ring cracks in solders will help the master to guess the causes and possible consequences of the malfunction.
In the case when the 22PFL3403S / 60 does not turn on, does not respond to the remote control and the front panel buttons, does not blink bulbs and does not show any signs of operability, most likely in this case the PWL20C 996510036276 main power module is faulty. When diagnosing and repairing the power supply, after replacing the swollen capacitors of the secondary rectifier filters (if any), you must first check the mains fuse. When it is broken, the power switch and rectifier bridge diodes should be checked for avalanche (thermal) breakdown.
It should be remembered that in the practice of repair, usually the power keys of N-Fet converters do not fail due to their poor quality and, in such cases, it is necessary to look for the cause that led to a malfunction and provoked a breakdown of the key. Most often, the culprits of the accident are dried electrolytic capacitors or dangling resistors in the primary circuit, or the PWM controller chip itself may be faulty. It is also necessary to check all the semiconductor elements of the stabilization circuit in the primary and secondary circuits.
If an active Power Factor Corrector (PFC) is used in the power module circuitry, it is sometimes more difficult to troubleshoot. Knowledge, experience, intuition and skills in such cases have a great advantage for a successful repair.
If, when you turn on the TV, the image appears and immediately disappears, or is initially absent when you turn on, but there is sound and other functions work, there is a high probability of a malfunction of the inverter (power converter for the backlight). In such cases, the lamps, the inverter and the common power module are subject to verification, in which the electrolytic capacitors of the rectifier filter supplying the inverter should be checked.
Repairing the JSY-190406-B 996510016908 INVPSU POWER SUPPLY UNIT BLB MT00 / MT35 / INVERTER PSU inverter is difficult because in case of any malfunction or abnormal situation, even if the lamps are unevenly worn, a protection is triggered that turns it off for fire safety purposes. Diagnostics become impossible and protection needs to be disabled.
It should be remembered that when the protection is turned off, there is always a risk of failure of the inverter power elements during diagnosis. After repair, it is necessary to restore all standard converter protection circuits.
Attention! For users and owners of 22PFL3403S / 60 TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.
Service manual and schematic diagram 22PFL3403S/60 Chassis TCM1.0E LA
MODELS: 19PFL3403, 19PFL3403S, 20PFL3403, 22PFL3403, 26PFL3403.
PSU SCHEMATIC --------------------> 40-PWL20C-PWI1XG.
The appearance of the MainBoard 40-MT01EU-MAF2XG is shown in the figure below:40-MT01EU-MAF2XG
The appearance of the power supply
Main features of the PHILIPS 22PFL3403S device:
Installed matrix (LCD panel) M220Z1-L03 Rev C1.
To power the backlight, a converter is used, combined with the power supply, controlled by a TL494C (16) LM493 (SO8) PWM controller. A transformer HVT-086 is installed in the inverter converter. As power elements of the inverter, keys of the type ME4542 (SO8) are used.
The necessary supply voltages for all nodes of the PHILIPS 22PFL3403S TV are generated by the 40-PWL20C-PWI1XG power supply module or its analogs using NCP1377 microcircuits (PWM flyback 8pin) and 2SK2996 power switches.
MainBoard - the main board (motherboard) is a 40-MT01EU-MAF2XG module, using MT8200ALE S29AL016M K4S641632K chips and others.
The TEDE9-2C2B tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: CMO
Model: M220Z1-L03
Type: a-Si TFT-LCD, Panel
Diagonal size: 22.0 inch
Resolution: 1680x1050, WSXGA +
Display Mode: TN, Normally White, Transmissive
Active Area: 473.76x296.1 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: 1.3 / 3.7 (Tr / Td)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
