Technical description and composition of the PHILIPS 42PFL9632D TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 42PFL9632D / 10
Chassis / Version: Q528.1E LA
Panel: LC420WU5 (SL) (B1)
Inverter (backlight): 6632L-0470A (MASTER), 6632L-0471A (SLAVE)
PWM Inverter: BD9897FS
MOSFET Inverter: K4075
Trans Inverter: BET-2544-F42L
Power Supply (PSU): 310432848892 3104 328 48892 // 3104 303 50594
PWM Power: MC34067P
MainBoard: 3104.313.61943 - 3104.303.50823
IC MainBoard: PNX8541E / 0434, PNX5050EH / M1, ISP1564HL
Tuner: TD1716F / 1HXP-3
Specifications 42PFL9632D
PHILIPS 42PFL9632D
General recommendations for repairing TV LCD
Repair of electronic equipment usually begins with its external inspection and diagnosis of the malfunction. In this case, you should inspect all the internal elements of the Q528.1E LA chassis, as well as the external chassis. From the visible changes in the state of the components, it is usually possible to determine the further direction of troubleshooting and localization of the defect before the necessary measurements are taken. In most cases, the repairman can guess the causes of the defect and possible consequences by the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of element leads, swollen rectifier filter capacitors, charred resistors and other circuit elements.
In cases when the PHILIPS 42PFL9632D 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 module is most likely faulty or there is no processor power on motherboard (a typical defect of some PHILIPS TVs). In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors for the possibility of an avalanche or thermal breakdown.
As a rule, the keys in switching power supplies (SMPS) are reliable enough and rarely fail for no reason to be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is verified by replacing it with a known good one.
In those cases when the PHILIPS 42PFL9632D TV has lost an image, and the sound is there and all the other functions are functional, there is a possibility of a malfunction of the inverter (converter for powering the backlight). When you turn on the TV, the image may appear briefly and immediately disappear. It must be borne in mind that with such manifestations, the lamps themselves also fail, the malfunction of which can be detected by replacement, by connecting to the connectors for diagnostics that are known to be serviceable and suitable in power. When disabling the inverter protection (to enable diagnostics), special care must be taken in view of the risk of failure of the power elements. After completing all repair work, it is imperative to restore the protection circuits for full and safe further operation of the TV by the user.
Owners and users of the PHILIPS 42PFL9632D 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 42PFL9632D/10 Chassis Q528.1E LA
The appearance of MainBoard 3104.313.61943 is shown in the figure below:3104.313.61943 - 3104.303.50823
3104.313.61943
3104.313.61943 can be used on TVs:
PHILIPS 32PFL7862D/10 (Panel T315XW02 V.F), PHILIPS 32PFL9632D/10 (Panel LC320WX5-SLB1), PHILIPS 37PFL9732D/10 (Panel LC370WU3 (SL)(E1)), PHILIPS 42PFL7862D/10 (Panel LC420WU5(SL)(B1) code 097), PHILIPS 42PFL9632D/10 (Panel LC420WU5(SL)(B1)), PHILIPS 42PFL9732D/10 (Panel LC420WU5 (SL)(B1)), PHILIPS 47PFL9732D/10 (Panel LC470WU2 (SL)(B1) code 101).
The appearance of the power supply
Main features of the PHILIPS 42PFL9632D device:
Installed matrix (LCD panel) LC420WU5 (SL) (B1).
To power the backlight, an inverter 6632L-0470A is used, it is controlled by the BD9897FS PWM controller. A transformer BET-2544-F42L is installed in the inverter converter. As power elements of the inverter, keys of the K4075 type are used.
The necessary supply voltages for all nodes of the PHILIPS 42PFL9632D TV are generated by the power supply module 310432848892, or its analogs using MC34067P microcircuits.
MainBoard - the main board (motherboard) is a module 3104.313.61943, using chips PNX8541E / 0434, PNX5050EH / M1, ISP1564HL and others.
The tuner TD1716F / 1HXP-3 provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC420WU5-SLB1
Type: a-Si TFT-LCD, Panel
Diagonal size: 42 inch
Resolution: 1920x1080, FHD
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 930.24x523.26 mm
Surface: Antiglare (Haze 13%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 1.06B (8-bit + Dithering)
Response Time: 5 (G to G); 8 (MPRT)
Frequency: 120Hz
Lamp Type: EEFL Embedded (Inverter)
Signal Interface: LVDS (4 ch, 10-bit), 92 pins
Voltage: 12.0V