Technical description and composition of the PHILIPS 42PFL5604 TV, panel type and applicable modules. The composition of the modules.PHILIPS
Model: 42PFL5604 / 60
Chassis / Version: TPM3.1E LA
Panel: LC420WUE- (SB) (A1) code 006
Inverter (backlight): 715G3474-3
Power Supply (PSU): 715G3474-3
MainBoard: 715G3380-3
IC MainBoard: TAFT-S710D MT8222TMMU, WT6703F, MX25L6405DMI-12G, M24C32WP, HY5DU561622FTP-4
Tuner: TAFT-S710D
Control: 2422 549 02314
Specifications 42PFL5604H
PHILIPS 42PFL5604
General recommendations for repairing TV LCD
It is recommended to start troubleshooting diagnostics and repairing PHILIPS with the Q543.3E LA chassis, as well as other electronic devices, with an external inspection of the external and internal elements. Visible damage to the elements can sometimes indicate the direction of the search for the defect even before the necessary measurements. In some cases, faulty elements can be seen with the naked eye, for example, charred resistors or swollen metal-ceramic capacitors, or electrolytic in rectifier filters. Ring cracks formed in the soldered terminals of transformers or heating elements of the circuit are also frequent sources of many malfunctions with a variety of external manifestations.
In cases when the PHILIPS 42PFL5604H TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light up or blink and there are no sounds and no signs of operability at all, the PLHL-T813A power supply module is most likely malfunctioning or missing processor power on the motherboard (a typical defect of some PHILIPS TVs). Diagnostics and repair of the common power supply should always begin with a check of the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for a breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the rectifier network, as well as the large electrolytic capacitor of the filter of the rectifier network.
As a rule, the keys in switching power supplies (SMPS) are reliable enough and rarely fail for no reason to be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is verified by replacing it with a known good one.
If the PHILIPS 42PFL5604H TV does not have an image, but there is sound, the malfunction should be sought in the backlight lamp power converter (inverter). It is also necessary to check the serviceability of the electrolytic capacitors of the filter of the secondary rectifiers of the BP (power supply) for an overstated ESR. It should be remembered that when the protection is turned off in order to diagnose a malfunction, there is always a risk of failure of the power elements of the inverter. After repair, it is necessary to restore all standard converter protection circuits.
Repair of the motherboard PHL3139 123 64561 BD3139 123 64571V5 WK850.5 should 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. In some cases, to repair the MB (SSB) board, it may be necessary to replace the elements - PNX85433EH24 180, 24c16WP, TDA9996HL / C1, DVB-T, DVB-C DRX3926K3, TPA3123D2, tun HD1816AF / BHXP with new or obviously working ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
One of the most common typical defects on the TPM3.1E LA chassis motherboard is caused by the use of the G973-120 linear stabilizer (G973-120ADJF11U) to power the processor in standby mode (3.3 V). Perhaps the problem is caused by poorly selected thermal conditions, or poor quality microcircuit.
External manifestations: the TV does not turn on and no indicators light up, although the power supply is working. At the output of the G973-120, a voltage of 3.3 V is underestimated or missing. It can be replaced by a more powerful 78R33 using heat sink and some design changes.
Attention to users! Do-it-yourself repair of the PHILIPS 42PFL5604H TV without the appropriate qualifications and experience can lead to its complete non-repairability!
Service manual and schematic diagram 42PFL5604/60 Chassis TPM3.1E LA
The appearance of the MainBoard 715G3380-3 is shown in the figure below:715G3380-3
715G3380-3 can be used in TVs:
PHILIPS 32PFL5614/60 (Panel LC320WUE (SA)(A1)), PHILIPS 32PFL5404/60 (Panel LC320WXE SBA1 p/n: 932226686682), PHILIPS 32PFL5404/60 (Panel T315XW02 V.R code 001 p/n: 932226891682 ), PHILIPS 32PFL5604/60 (Panel LC320WUE (SA)(A1)), PHILIPS 42PFL5604/60 (Panel LC420WUE-(SB)(A1) code 006).
The appearance of the power supply
Main features of the PHILIPS 42PFL5604 device:
Installed matrix (LCD panel) LC420WUE- (SB) (A1) code 006.
To power the backlight used inverter 715G3474-3.
The formation of the necessary supply voltages for all nodes of the PHILIPS 42PFL5604 TV is carried out by the power supply module 715G3474-3, or its analogues.
MainBoard - the main board (motherboard) is a 715G3380-3 module, using the TAFT-S710D MT8222TMMU, WT6703F, MX25L6405DMI-12G, M24C32WP, HY5DU561622FTP-4 and other chips.
The TAFT-S710D tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: LG Display
Model: LC420WUE-SBA1
Type: a-Si TFT-LCD, Panel
Diagonal size: 42 inch
Resolution: 1920x1080, FHD
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 930.24x523.26 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1400: 1
Display Colors: 1.06B (8-bit + FRC)
Response Time: 5 (G to G)
Frequency: 60Hz
Lamp Type: 18 pcs EEFL Without Driver
Signal Interface: LVDS (2 ch, 10-bit), 51 pins
Voltage: 12.0V