Technical description and composition of the PHILIPS 42PFL3606H TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 42PFL3606H / 60
Chassis / Version: TPM6.1E LA
Panel: LC420WUY-SCB1 code 123 / (LC420WUY-SCB2) p / n: 996510042081
Inverter (backlight): integrated into PSU
MOSFET Inverter: P10NK60
Trans Inverter: TMS94876CT
Power Supply (PSU): 715G4802-P01-H20-003H 996510042078
PWM Power: TNY277PN (7), FAN6961 (PFC), NCP1271A, UBA2071AT
MOSFET Power: 11N60, 3N80
MainBoard: 715G4609-M3A-000-005B 996510042081
IC MainBoard: STA339BW, TMDS251, 17113E, 9668,
Tuner: TDTK-G731D 996510043303
Control: YKF293-001 996510043241, IR: 715G4702-R01-000-004U
Specifications 42PFL3606H
PHILIPS 42PFL3606H
General recommendations for repairing TV LCD
Repair of the PHILIPS TV with the TPM6.1E LA chassis should begin with a careful external examination of all its components and modules. Visible damage to the elements can sometimes indicate the direction of the search for the defect even before 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 cases when the PHILIPS 42PFL3606H 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 power supply module 996510042078 1054 715G4802-P01 is most likely to be faulty -H20-003H or there is no power to the processor on the motherboard (a typical defect of some PHILIPS TVs). 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. If the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and transistors 11N60, 3N80, which are often found in such a state of breakdown.
Power switches in pulsed power supplies (SMPS) fail extremely rarely for no reason and, if they are broken, it is necessary to look for a malfunction in the stabilization circuits by checking electrolytic capacitors, semiconductor devices, and resistors in the primary circuit. The reason may be a malfunction of the TNY277PN PWM controller microcircuit (7), which can only be checked by replacing it with a new or obviously working one.
If the PHILIPS 42PFL3606H does not have an image, there is sound and the channels are switched, there is a possibility of a malfunction of the display backlight, or their power converter - inverter. Sometimes when you turn on the image appears and disappears immediately. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the inverter itself, including in the secondary rectifier of the main PSU. All necessary precautions must be observed when disabling the inverter protection during diagnostics and not leaving it disconnected after the repair is completed.
The motherboard 715G4609-M3A-000005B 996510042081 TDTK-G731D must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up constantly. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary. When repairing the MB board, you must check its components STA339BW, TMDS251, 17113E, 9668, tuner 996510043303. Faulty elements should be replaced. If BGA chips are installed, their malfunction is usually localized by heating. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
Attention to users! Self-repair of a PHILIPS 42PFL3606H TV without the appropriate qualifications and experience can lead to its complete non-repairability !!!
Service manual and schematic diagram 42PFL3606H/60 Chassis TPM6.1E LA
FOR MODELS: 22PDL4906H/12, 22PDL4906H/58, 22PDL4906H/60, 22PDL4916H/12, 22PDL4916H/58, 22PDL4916H/60, 26PDL4906H/12, 26PDL4906H/58, 26PDL4906H/60, 26PDL4916H/12, 26PDL4916H/58, 26PDL4916H/60, 32PFL3406H/12, 32PFL3406H/58, 32PFL3505H/12, 32PFL3506H/12, 32PFL3506H/58, 32PFL3506H/60, 32PFL3606H/12, 32PFL3606H/58, 32PFL3606H/60, 32PFL5306H/12, 32PFL5306H/58, 32PFL5406H/12, 32PFL5406H/58, 32PFL5406H/60, 32PFL5606H/12, 32PFL5606H/58, 32PFL5606H/60, 42PFL3505H/12
The appearance of the MainBoard 715G4609-M3A-000-005B is shown in the figure below:715G4609-M3A-000-005B
PSU Advanced
The power module 715G4802-P01-H20-003H is made using the Power Factor Correction (PFC) scheme to eliminate multiple AC harmonics introduced into the power supply by the device. The PFC assembly is a Step-Up Converter based on a FAN6961 PWM controller that evenly distributes high-frequency impulses of the charging current of the electrolytic capacitor of the rectifier filter of the mains voltage over a period of 50 Hz. The current of its charge in this case will already be determined not by its reactance (usually 10-30 ohms for the network frequency), but by the elements of the converter. As a result, a change in the amplitude of the pulses (envelope) of the consumed current of the converter will repeat the shape and phase of the input sinusoidal voltage. The availability of an increased voltage (about + 380V) in the operating mode on the capacitor of the line filter indicates the serviceability of the PFC node.
The appearance of the power supply
Main features of the PHILIPS 42PFL3606H device:
Installed matrix (LCD panel) LC420WUY-SCB1 code 123 / (LC420WUY-SCB2) p / n: 996510042081.
To power the backlight, a converter is used, combined with a power supply. A transformer TMS94876CT is installed in the inverter converter. As power elements of the inverter, keys of the type P10NK60 are used.
The necessary supply voltages for all nodes of the PHILIPS 42PFL3606H TV are generated by the 715G4802-P01-H20-003H power supply module or its analogs using TNY277PN (7), FAN6961 (PFC), NCP1271A, UBA2071AT and power switches type 11N60, 3N80.
MainBoard - the main board (motherboard) is a module 715G4609-M3A-000-005B, using microchips STA339BW, TMDS251, 17113E, 9668, and others.
Tuner TDTK-G731D 996510043303 provides the reception of television programs and tuning to channels.
