Technical description and composition of the PHILIPS 26PF5320 TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 26PF5320 / 10
Chassis / Version: LC4.3E AA
Panel: LC260WX2 (SL) (01)
Lamp backlight: 18 Lamp CCFL
T-CON: 6870C-0036D (SL) (01)
Inverter (backlight): 6632L-0117H KLS-EE26-M REV: 08, 6632L-0118H KLS-EE26-S REV: 08,
PWM Inverter: BA10339F
MOSFET Inverter: FDS6990A, FDS4435A
Trans Inverter: T-076 065J
Power Supply (PSU): PLCD170P2 3122 133 32834
PWM Power: DLA001D (L6598), NCP1207A, L6562D
MOSFET Power: 3N80C, P20NM60FP
MainBoard: WK523.4 3139 123 6141.1
Tuner: UV1318S / A I H-3
Specifications 26PF5320
PHILIPS 26PF5320
General recommendations for repairing TV LCD
Possible manifestations of defects
- The PHILIPS 26PF5320 TV does not turn on at all. The control lights do not light or flash. The TV on the remote control and the control panel buttons do not respond.
With such manifestations, the PLCD170P2 power supply module usually fails. In the absence of the necessary supply voltages in the secondary circuits of the converters, it is necessary to check the power switches (3N80C, P20NM60FP) and rectifier diodes for a possible partial or complete breakdown.
In the event of breakdowns in the secondary circuits of the converter, it can usually fail in short circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse or current sensor at the source of the key most often breaks.
Mos-Fet power switches, used in switching power supplies, sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode or create an excess of the maximum permissible parameters of the switch. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. PWM controllers DLA001D (L6598), NCP1207A, L6562D, in the absence of visible damage or explicit short-circuit between the terminals, are checked by replacing with new, or obviously working.
- There is no image, but there is sound and reaction to the remote control. Or for a second, the image may appear immediately after switching on.
These manifestations can be triggered by the power module, or by inverter defects, as well as by the distortion of the currents in the lamps due to their uneven wear. After checking all the electrolytic capacitors of the filters that are involved in the power supply of the inverter, it is necessary to ring in its converter the power switches for breakdown and the secondary windings of the transformers for an open.
If in diagnosing a malfunction, it is necessary to disable the inverter protection, there is a risk of failure of the power elements of the inverter, and special care is required during work, and after they are finished, it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
- The TV does not turn on, the indicator indicates standby or operating mode, or blinks.
Repair or diagnostics of the WK523.4 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software).
Before replacing the UV1318S / A I H-3 tuner, if there is no channel tuning, you must first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
It should be remembered! Attempts to independently repair the PHILIPS 26PF5320 TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
Service manual and schematic diagram 26PF5320/10 Chassis LC4.3E AA
The appearance of the MainBoard WK523.4 is shown in the figure below:WK523.4
The appearance of the power supply
Main features of the PHILIPS 26PF5320 device:
Installed matrix (LCD panel) LC260WX2 (SL) (01).
The matrix control uses the Timing Controller (T-CON) 6870C-0036D.
To power the backlight, an inverter 6632L-0117H is used, it is controlled by the PWM controller BA10339F. The transformer T-076 065J is installed in the inverter converter. As power elements of the inverter, keys of the type FDS6990A, FDS4435A are used.
The necessary supply voltages for all nodes of the PHILIPS 26PF5320 TV are generated by the PLCD170P2 power supply module or its analogs using DLA001D (L6598), NCP1207A, L6562D microcircuits and 3N80C, P20NM60FP power switches.
MainBoard - the main board (motherboard) is a WK523.4 module.
The UV1318S / A I H-3 tuner allows you to receive television programs and tune to channels.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC260WX2-SL01
Type: a-Si TFT-LCD, Panel
Diagonal size: 26.0 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 575.769x323.712 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 600: 1
Display Colors: 16.7M (8-bit)
Response Time: 7/9 (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
