Technical description and composition of the PHILIPS 32PFL5603D TV, panel type and applicable modules. The composition of the modules.PHILIPS
Model: 32PFL5603D / 12
Chassis / Version: Q522.1E LB
Panel: LC320WXN-SAA1
T-CON: 6632L-0494A
Power Supply (PSU): PLCD170PS09
MainBoard: 3139_123_63412 3139 123 6341.2
IC MainBoard: PNX8541, PNX5050
Tuner: TD1716F / BHXP-3
Appearance
PHILIPS 32PFL5603D
General recommendations for repairing TV LCD
Repair of all electronic devices, including the PHILIPS 32PF5603D / 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. In some cases, visible external damage to the elements can suggest directions for troubleshooting and localizing the defect before starting the necessary measurements at the control points of the nodes of electronic circuits. Carbonized paint on the upper layer of resistors, electrolytic capacitors of rectifier filters swollen after boiling, cracked soldering at the terminals of heating elements or transformers can often suggest the cause of the defect and possible consequences.
Power Module Repair
If PHILIPS 32PF5603D / 12 does not turn on, no control lights on the front panel light up or blink, therefore, there is a very high probability of a PLCD 170PS09 power supply module malfunctioning. In the general case, first of all, it is necessary to check the electrolytic capacitors of the secondary rectifier filters and the fuse at the input of the network. If it is broken, then you should check for breakdown of the PN junctions of the rectifier bridge diodes and the key transistor of the N-FET converter, which can either be on a separate radiator or integrated with a PWM controller in a common chip. Possible options.
As a rule, the keys of flyback converters, which use an N-Fet field effect transistor on a separate radiator, or integrated with a PWM controller in a single chip, are reliable enough and rarely fail for no reason. The reasons for the breakdown of the key should be sought 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 cases using a power module with an active KKM, troubleshooting is sometimes somewhat more complicated.
Inverter Repair
If the PHILIPS 32PF5603D / 12 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.
Diagnosis and repair of the inverter is often complicated by the organization of special protection circuits, which is necessary for fire safety and turns off the inverter in any emergency situation, for example, when the lamps are worn or depressurized. Often, to block a defect, it needs to be locked.
All necessary precautions must be observed when disabling the inverter protection during diagnostics and not leaving it disconnected after the repair is completed.
Once again, remind users! Attempts at self-repair of the PHILIPS 32PF5603D / 12 TV without the appropriate qualifications and experience can lead to its complete non-repairability!
Service manual and schematic diagram 32PF5603D/12 Chassis Q522.1E LB
The appearance of MainBoard 3139_123_63412 is shown in the figure below:3139_123_63412
3139_123_63412 can be used in TVs:
PHILIPS 32PFL5603D/12 (Panel LC320WXN-SAA1), PHILIPS 42PFL7603S/60 (Panel T420HW01 V.4 (AUOP) B p/n: 932225801682), PHILIPS 32PFL7433S/60 (Panel LC320WXD (SA)(B1)), PHILIPS 32PFL7803S/60 (Panel T315HW01 V.0).
The appearance of the power supply
Key Features of PHILIPS 32PFL5603D:
Installed matrix (LCD panel) LC320WXN-SAA1.
The matrix control uses the Timing Controller (T-CON) 6632L-0494A.
The necessary supply voltages for all nodes of the PHILIPS 32PFL5603D TV are generated by the PLCD170PS09 power supply module, or its analogs.
MainBoard - the main board (motherboard) is a module 3139_123_63412, using microchips PNX8541, PNX5050 and others.
The tuner TD1716F / BHXP-3 provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC320WXN-SAA1
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