Technical description and composition of the PHILIPS 32PF4311S TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 32PF4311S / 10
Chassis / Version: LC4.31E AA
Panel: LC320W01 (sl) (06)
T-CON: LC370WX1 / LC320W01 P / N 6870C-0060F
Inverter (backlight): KLS-EE32CI-M (P) REV: 03 KLS-EE32CI-S (P)
PWM Inverter: OZ9981GN
Power Supply (PSU): PLCD190P1 3122 137 23171 // DPS-188AP
PWM Power: TEA1533AT (SOP14), L6562D (PFC), TEA1601T (SOP16)
MOSFET Power: RSS100 NO3 P11MN60AFP
MainBoard: 3139-123-6117.2 WK542.2
IC MainBoard: gm1501-LF-M4747CF_0710S, M29W400DT, TDA15021H / N1C91, TDA8931T
Tuner: UL1318S / AI H-3
Control: RC1683706 / 01H 3139 238 13971LF
PHILIPS
Model: 32PF4311S / 10
Chassis / Version: LC4.31E AA
Panel: LC320W01 (SL) (06)
Power Supply (PSU): PLCD190P1 3122 137 23171 // DPS-188AP
PWM Power: TEA1533AT (SOP14), L6562D (PFC), TEA1601T (SOP16)
MainBoard: 3139-123-6117.2 WK542.2
IC MainBoard: gm1501-LF-M4747CF_0710S, M29W400DT, TDA15021H / N1C91, TDA8931T
Tuner: UL1318S / AI H-3
Control: RC1683803 / 01 3139 238 11772
Specifications 32PF4311
PHILIPS 32PF4311S
General recommendations for repairing TV LCD
TV PHILIPS 32PF4311S / 10, like other electronic devices, it is advisable to start repairing from inspection of external and internal elements. It often happens that some damage to elements or connections helps determine the direction of the troubleshooting. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred paint layer on the resistors - all this for the repairman can be a hint in the assumptions about the causes and consequences of the malfunction.
Power Module Repair
Malfunctions of the DPS-188AP power supply module can be expressed in different ways, for example, PHILIPS 32PF4311S / 10 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. 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.
If a breakdown of the power switch of the flyback converter of the power supply unit is detected, it should be remembered that it does not fail by itself without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked by replacement, and also other semiconductor elements (diodes, transistors, zener diodes).
When using an active Power Factor Correction (CMC) circuit in the power module, the search for faulty elements is somewhat more complicated.
Inverter Repair
If the PHILIPS 32PF4311S / 10 does not have an image, but there is sound, there is a possibility of a malfunction of the backlight or power converter. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working.
Often, attempts to repair the 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.
It should be remembered that when the protection is turned off, there is always a risk of failure of the inverter power elements during diagnosis. After repair, it is necessary to restore all standard converter protection circuits.
Owners and users of the PHILIPS 32PF4311S / 10 TV must remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
Service manual and schematic diagram 32PF4311S/10 Chassis LC4.31E AA
FOR MODELS 26PF5321/10/12, 32PF5321/10/12, 37PF5321/10/12, 26PF7321/12, 32PF7321/12, 37PF7321/10/12, 42PF5421/10.
PSU ---------------> PLCD190P1 schematic diagram
The appearance of MainBoard 3139-123-6117.2 is shown in the figure below:3139-123-6117.2
3139-123-6117.2 can be used in televisions:
PHILIPS 26PF4311S/10 (Panel LC260WX2(SL)(B2)), PHILIPS 26PF5521 (Panel PLCD170P2), PHILIPS 26PF7321/12 (Panel LC260WX2-SL04), PHILIPS 32PF4311S/10 (Panel LC320W01 (sl)(06)), PHILIPS 32PF4311S/10 (Panel LC320W01(SL)(06)), PHILIPS 32PF5331/12 (Panel T315XW01 V9), PHILIPS 32PF7321 (Panel LC320W01), PHILIPS 32PF7331/12 (Panel LC320W01), PHILIPS 32PFL3321S/60 (Panel LC320W01 (SL)(06)), PHILIPS 37PFL3321/10 (Panel LC370WX1-SL04), PHILIPS 32PF3321/12 (Panel CLAA320WB02 (P)), PHILIPS 37PF3321/12 (Panel LC370WX1 (SL)(04)).
PSU Advanced
The 32PF4311S / 10 model uses the PLCD190P1 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 L6562D PWM controller, which eliminates the charge current of the rectifier filter's electrolytic capacitor 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 32PF4311S device:
The matrix (LCD panel) LC320W01 (SL) (06) is installed.
The necessary supply voltages for all nodes of the PHILIPS 32PF4311S TV are generated by the PLCD190P1 power module or its analogs using TEA1533AT (SOP14), L6562D (PFC), TEA1601T (SOP16) microcircuits.
MainBoard - the main board (motherboard) is a module 3139-123-6117.2, using microchips gm1501-LF-M4747CF_0710S, M29W400DT, TDA15021H / N1C91, TDA8931T and others.
The UL1318S / AI H-3 tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC320W01-SL06
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, Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.7M (8-bit)
Response Time: 8/10 (Tr / Td); 8 (G to G)
Frequency: 60Hz
Lamp Type: 18 pcs EEFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V