PHILIPS 15PFL4122 TV description and composition, panel type and applicable modules. The composition of the modules.PHILIPS
Model: 15PFL4122 / 10
Chassis / Version: TPS1.0E LA
Panel: T150XG01 V.4
Inverter (backlight): 715T2202-2 INPC521AR1P
PWM Inverter: OZ9938GN (8H) PL
Power Supply (PSU): adapter EADP-45AB B 16v / 2.8A
MainBoard: 715T2229-2
IC MainBoard: CPU: MST96885LD-LF, DRAM: HY57V641620FTP-6, SPI Flash: 25L8005M2I
Tuner: FQ1216MEV / 1 H-5
Control: RC2023611 / 01B J08030447
Specifications 15PFL4122
PHILIPS 15PFL4122
General recommendations for repairing TV LCD
Repair of the PHILIPS 15PFL4122 / 10 TV is advisable to start with a careful external examination. In this case, both external and internal components of the device should be inspected. Specific external damage to the elements can sometimes prompt further actions to determine the malfunction of the TV and localize the defect before starting the necessary measurements and taking waveforms. In most cases, the repairman can guess the causes of the defect and possible consequences from the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of the element leads, swollen rectifier filter capacitors, charred resistors and other circuit elements.
If the 15PFL4122 / 10 TV does not turn on, does not make any sounds when turned on, and also no indicators on the front panel light or blink - there is a high probability of a malfunction in the power module. In some cases, only the regulator or power converter of the control processor may be faulty, which is typical for some PHILIPS models. It is advisable to start the troubleshooting of the power supply module by checking the state of the electrolytic capacitors of the rectifier filters and the mains fuse. Defective capacitors should be replaced. In the event that the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and the power switch of the converter, which are often found in breakdown conditions in such situations.
It should be remembered that the N-FET keys used in flyback converters rarely fail without their own sake without any reasons that must be sought by checking other elements of the circuit. 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 PWM controller chip 9945N (16n) pl can also be the cause of the breakdown of the power switch of the converter.
In cases where the Power Factor Corrector (PFC) is used in the power supply, troubleshooting can be a bit more complicated.
If the PHILIPS 15PFL4122 / 10 does not have an image, but there is sound and the TV is controlled by the remote control, a malfunction in the display backlight nodes is likely. The lamps or the power converter - inverter may be faulty. 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 inverter, and check the LCD lamps by connecting external and obviously serviceable for diagnosis to the connectors.
When repairing the 715T2202-2 INPC521AR1P inverter, it is often necessary to disable the protection for diagnostics, which, for the purpose of fire safety, turns it off in any emergency situation, for example, during a malfunction or uneven wear of the lamps, which makes it difficult to find a defect.
Turning off the protection for diagnostic purposes, it must be remembered that in this case there is a risk of failure of the power elements of the inverter. Upon completion of the diagnosis, all regular protection circuits should be restored.
Repair of the motherboard FQ1216MEV 9965 100 09591 must begin with the diagnosis and verification of all linear stabilizers or power converters of its microcircuits. Sometimes it may be necessary to update the software (software) - flashing FLASH or EEPROM. Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Testing or replacing elements MST96885LD-LF, requires the necessary training and professional skills in repairing modules at the component level.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair only to professionals with sufficient experience in the field of electronic equipment repair.
Service manual and schematic diagram 15PFL4122/10 Chassis TPS1.0E LA
FOR MODELS: 15PFL4122, 19PFL4322, 20PFL4122
The appearance of the MainBoard 715T2229-2 is shown in the figure below:715T2229-2
715T2229-2 can be used in TVs:
PHILIPS 15PFL4122 / 10 (Panel T150XG01 V.4), PHILIPS 19PFL4322 / 10 (Panel M190A1), PHILIPS 20PF4122 / 10 (Panel LC201V02), PHILIPS 20PFL4122 / 10 (Panel LC201V02).
Main features of the PHILIPS 15PFL4122 device:
Installed matrix (LCD-panel) T150XG01 V.4.
To power the backlight, an inverter 715T2202-2 is used, it is controlled by the PWM controller OZ9938GN (8n) pl.
To power all the internal components of the PHILIPS 15PFL4122 TV, an external adapter type EADP-45AB B 16v / 2.8A is used.
MainBoard - the main board (motherboard) is a 715T2229-2 module using CPU chips: MST96885LD-LF, DRAM: HY57V641620FTP-6, SPI Flash: 25L8005M2I and others.
The FQ1216MEV / 1 H-5 tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T150XG01 V4
Type: a-Si TFT-LCD, Panel
Diagonal size: 15.0 inch
Resolution: 1024x768, XGA
Display Mode: TN, Normally White, Transmissive
Active Area: 304.128x228.096 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 700: 1
Display Colors: 16.2M (6-bit + FRC)
Response Time: 6/2 (Tr / Td)
Frequency: 60Hz
Lamp Type: 2 pcs CCFL Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 20 pins
Voltage: 3.3V
