Technical description and composition of the PHILIPS 32PFL7613D TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 32PFL7613D / 12
Chassis / Version: Q528.2E LB
Panel: LC320WXN (SA) (B1)
Inverter (backlight): LC320 6632L-0494A
Power Supply (PSU): DPS-182CP 31391287946
PWM Power: NCP1606 (PFC), ICE3BS02, DDA001B (analog L6599 PWM resonant)
MainBoard: 313912363411 3139 123 63411 3139 123 63401
IC MainBoard: PNX8541E / 2414, TDA8932BTW, ISP1564HL
Tuner: 3139 147 26571J TD1716F / BHXP-3
Control: RC4450 / 01B 3128 147 19482LF
Specifications 32PFL7613D
PHILIPS 32PFL7613D
General recommendations for repairing TV LCD
Repair of all electronic devices, including the PHILIPS 32PFL7613D / 12 TV, it is advisable to start with an external examination of its external and internal elements. You should also pay attention to the condition of the case elements, connectors, cords, loops and buttons. Many visible changes make it possible to determine the future direction of troubleshooting and localization of the defect. Swollen electrolytic or cermet capacitors, charred resistors, ring cracks in the soldered terminals of the elements - all this can significantly help the master to determine the causes and consequences of the malfunction of the TV.
Power Module Repair
If the power supply module DPS-182CP 31391287946 fails, the external manifestations may be different, for example, PHILIPS 32PFL7613D / 12 does not turn on at all and there is no indication of the indicator lights on the front panel. In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should always be started by checking the fuse and, if it is broken, it is first necessary to check the rectifier bridge diodes and the power switch for the possibility of an avalanche or thermal breakdown.
It should be borne in mind that in the practice of repair it is extremely rare that key transistors of the N-FET type fail for no reason to be looked for by checking other components, for example, a breakdown of the key can provoke faulty elements of the damper circuits, either dried electrolytic capacitors or dangling resistors of the primary circuit of the PSU, involved in the stabilization process. In this case, all semiconductor elements of the strapping of the PWM controller chip are subject to verification, which it is desirable to verify by replacement.
When using the Active Power Factor Correction (CMC) circuitry in the power module, the search for faulty elements is somewhat more complicated.
Inverter 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 feeding the inverter should be checked.
Often, attempts to repair the LC320 6632L-0494A inverter are hampered by the fact that the fault diagnosis 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.
In such cases, the risk of failure of the power elements of the inverter is most likely, and special care is required during work, and after their completion, it is necessary to restore the protection circuit for further safe operation of the TV by the owner in normal mode.
Repair Main Board
Repair of the motherboard 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.
Attention! For users and owners of 32PFL7613D / 12 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-serviceability of the device.
Service manual and schematic diagram 32PFL7613D/12 Chassis Q528.2E LB
The appearance of MainBoard 313912363411 is shown in the figure below:313912363411
313912363411 can be used in TVs:
PHILIPS 32PFL7403D/12 (Panel T315XW02 V.F), PHILIPS 32PFL7423D/12 (Panel LC320WXD (SA)(B1) code 154 p/n: 932226033682), PHILIPS 32PFL7603S/60 (Panel V315B1-L05 Rev. C1), PHILIPS 32PFL7613D/12 (Panel LC320WXN (SA)(B1)), PHILIPS 37PFL7603S/60 37PFL7603D/10 (Panel T370HW02 V.3), PHILIPS 42PFL5603D/12 (Panel T420HW01 V.4 code 131 p/n: 932225801682 ), PHILIPS 47PFL5603D/10 (Panel LC470WUF SA A1), PHILIPS 47PFL7603/10 (Panel V470H1-L05 code 159).
PSU Advanced
The model 32PFL7613D / 12 uses a DPS-182CP power supply unit using the PFC (Power Factor Correction) node - an active filter of the highest harmonics of the current consumption. In fact, this is a boost converter based on the NCP1606 PWM controller, which eliminates the charge current of the electrolytic capacitor of the rectifier filter directly from the network through open diodes when its charging current is determined by its reactance.
As a result of the operation of the converter, the envelope of the high-frequency pulses of the input current of the converter will repeat the shape and phase of the input voltage. The health of the PFC node can be indirectly judged by the presence of an increased constant voltage (about + 380V) on the capacitor of the rectifier network in operating mode.
The appearance of the power supply
Main features of the PHILIPS 32PFL7613D device:
Installed matrix (LCD panel) LC320WXN (SA) (B1).
An LC320 inverter is used to power the backlight.
The necessary supply voltages for all nodes of the PHILIPS 32PFL7613D TV are generated by the DPS-182CP power module or its analogs using NCP1606 (PFC), ICE3BS02, DDA001B (analog L6599 PWM resonant) microcircuits.
MainBoard - the main board (motherboard) is a module 313912363411, using chips PNX8541E / 2414, TDA8932BTW, ISP1564HL and others.
Tuner 3139 147 26571J TD1716F / BHXP-3 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC320WXN-SAB1
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare (Haze 13%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1100: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8 (G to G)
Frequency: 60Hz
Lamp Type: 12 pcs EEFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V