Technical description and composition of the PHILIPS 32PFL3406H TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 32PFL3406H / 60
Chassis / Version: TPM5.1E LA
Panel: LC320WXN (SC) (A3) code 134 // code 122 932228014682)
T-CON: 6870C-0313B LC320WXE-SCA1
Inverter (backlight): LC320WXN 6632L-0624A
PWM Inverter: OZ9966SN
Power Supply (PSU): 715G4361-P1C-000-003U // (996510045678)
PWM Power: TNY277PN (7),
MOSFET Power: K12A60U, K4096
MainBoard: 715G3735-M1B-000-005X
IC MainBoard: TPA3113D2, G5657A (8) DC-DC,
Tuner: TDTW-S810D (M) // SSB (996510045679)
Control: Remote: 2422 549 02454 PF01E09B, IR: 715G4702-R03-000-004B
Specifications 32PFL3406H
PHILIPS 32PFL3406H
General recommendations for repairing TV LCD
It is advisable to start any repair and diagnostics of the PHILIPS 32PFL3406H / 60 TV, as well as other devices, with a careful external examination of the internal and external elements, including case parts, display, buttons and cables. 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 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.
Power Module Repair
Faults in the 715G4361-P1C-000-003U // power supply module (996510045678) can be expressed in different ways, for example, PHILIPS 32PFL3406H / 60 does not turn on at all and the control lamps on its front panel do not light up and do not blink, there are no signs of operability. 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 the power switch of the K12A60U, K4096 converter, which are often found in a breakdown state in such situations.
Power switches in flyback converters 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.
In cases where the Power Factor Corrector (PFC) is used in the power supply, troubleshooting can be a bit more complicated.
Inverter Repair
If the PHILIPS 32PFL3406H / 60 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.
Often, attempts to repair the LC320WXN 6632L-0624A inverter are hampered by the fact that the diagnosis of the malfunction is complicated by the operation of its protection, which is designed to turn off the inverter in emergency conditions - when the lamps are depressurized, breaks or short circuits in high-voltage connections and other emergency situations. Lock protection to localize the defect is popular among repairmen.
When diagnosing with the protection off, special precautions must be taken, because there is a risk of failure of the power elements of the inverter. After the diagnosis, it is imperative to restore the protection circuits for the inverter to operate normally.
Repair Main Board
Repair of the motherboard 715G3735-M1B-000-005X 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. In some cases, it is necessary to check or replace (if necessary) the elements of the MB board (SSB) - TPA3113D2, G5657A (8) DC-DC, tuner TDTW-S810D.
For 32PFL3406H / 60 TV owners, we recommend that you contact qualified professionals with work experience for repairs! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!
Service manual and schematic diagram 32PFL3406H/60 Chassis TPM5.1E LA
The appearance of the MainBoard 715G3735-M1B-000-005X is shown in the figure below:715G3735-M1B-000-005X
The appearance of the power supply
Main features of the PHILIPS 32PFL3406H device:
Installed matrix (LCD panel) LC320WXN (SC) (A3) code 134 or code 122 932228014682).
The matrix control uses the Timing Controller (T-CON) 6870C-0313B.
An LC320WXN inverter is used to power the backlight lamps, it is controlled by the OZ9966SN PWM controller.
The necessary supply voltages for all nodes of the PHILIPS 32PFL3406H TV are generated by the 715G4361-P1C-000-003U power module, or its analogs using TNY277PN microcircuits (7), and power switches such as K12A60U, K4096.
MainBoard - the main board (motherboard) is a 715G3735-M1B-000-005X module, using TPA3113D2, G5657A (8) DC-DC chips, and others.
Tuner TDTW-S810D (M) // SSB (996510045679) provides the reception of television programs and tuning to channels.
