Technical description and composition of the PHILIPS 37PFL3507T TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 37PFL3507T / 60
Chassis / Version: TPM9.2E LA
Panel: LC370EUE (SE) (M1)
LED backlight: 6922L-0007a RIGHT = 37 V12 Edge REV1.1 1 6920L-0001
T-CON: 32.37.42.47.55 ARV TM120 Ver0.2 6870C-0401B
LED driver (backlight): 715G5194-P01-W02-002M
Power Supply (PSU): 715G5194-P01-W02-002M
PWM Power: LD7523GS, A6069H
MainBoard: 715G5155-M01-002-005X
IC MainBoard: MT5366ZVGG, H5TQ1G63DFR-H9C, TMDS361BPAGR
Tuner: ENV57U04D8F
Control: IR: 715G5251-R01-000-004I
Specifications 37PFL3507T
PHILIPS 37PFL3507T
General repair guidelines for TV LCD LED
Repair of the PHILIPS 37PFL3507T / 60 TV should begin with a careful external inspection of all its components and modules. Often, for certain external signs, it may be possible to draw certain conclusions about the reasons for the failure of certain elements of the circuit even before the necessary measurements are made, which will determine the further algorithm for troubleshooting and localizing the defect. Electrolytic capacitors of filters with a swollen casing, as well as ring cracks formed in the soldered leads of heating elements, or a layer of coal on burnt resistors sometimes tell the repairman the causes of the malfunction and possible consequences.
In cases where the PHILIPS 37PFL3507T 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 supply module 715G5194-P01-W02 is most likely faulty -002M or there is no processor power on the motherboard (a typical defect of some PHILIPS TVs). Diagnostics and repair of the common power supply should always begin with a check of the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for a breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the rectifier network, as well as the large electrolytic capacitor of the filter of the rectifier network.
It should be borne in mind that in the practice of repair it is extremely rare that key transistors in switching power supplies (SMPS) fail for no reason that should be sought by checking other components, for example, a breakdown of the key can provoke faulty elements of the damper circuits, or dried electrolytic capacitors or dangling primary resistors BP circuits 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.
If there is no image when you turn on the PHILIPS 37PFL3507T, or it appears for a second and disappears, but there is sound, most likely there is a malfunction in the backlight LED circuit of the LC370EUE SE M1 panel, or in their power converter. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the general power supply unit.
Often in the absence of backlighting, disassembling the panel is required. It is necessary to check the serviceability of the transitions of the LEDs, as well as the reliability of the contact connections in the rulers and connectors.
When trying to detect a break in the LED lines, it should be taken into account that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
Repair of the motherboard 715G5155-M01-002-005X 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.
In cases where there is no tuning to the local television channels, you should make sure that the voltage of the varicaps (30-33V) and other supply voltages are on the terminals of the tuner ENV57U04D8F.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair only to professionals with sufficient experience in the field of electronic equipment repair.
Service manual and schematic diagram 37PFL3507T/60 Chassis TPM9.2E LA
FOR MODELS : 32PFL3517H/12, 32PFL3507K/02, 32PFL3517K/02, 37PFL3507H/12, 37PFL3507K/02, 42PFL3507H/12, 42PFL3507K/02
The appearance of the MainBoard 715G5155-M01-002-005X is shown in the figure below:
715G5155-M01-002-005X715G5155-M01-002-005X can be used in TVs:
PHILIPS 22PFL3507T/60 (Panel M215HW03 V.1 code 174 p/n: 996590001935 code 160 932228935682), PHILIPS 24PFL3507T/60 (Panel M236HGE-L20 code 161 p/n: 996590000202), PHILIPS 32PFL3517/60 (Panel LC320EUE (SE)(M1) code 156 p/n: 932228889682), PHILIPS 37PFL3507T/60 (Panel LC370EUE (SE)(M1)), PHILIPS 42PFL3007H/60 (Panel LC420WUE (SC)(A1) code 152 p/n: 932228942682), PHILIPS 32PFL3517H/60 (Panel LC320EUE (SE)(M1)).
The appearance of the power supply
Main features of the PHILIPS 37PFL3507T device:
Installed matrix (LED-panel) LC370EUE (SE) (M1).
The matrix control uses the Timing Controller (T-CON) 3237424755.
The LED driver 715G5194-P01-W02-002M is used to power the backlight LEDs.
The necessary supply voltages for all nodes of the PHILIPS 37PFL3507T TV are generated by the power module 715G5194-P01-W02-002M, or its analogs using microcircuits LD7523GS, A6069H.
MainBoard - the main board (motherboard) is a module 715G5155-M01-002-005X, using chips MT5366ZVGG, H5TQ1G63DFR-H9C, TMDS361BPAGR and others.
The ENV57U04D8F tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: LG Display
Model: LC370EUE-SEM1
Type: a-Si TFT-LCD, Panel
Diagonal size: 36.5 inch
Resolution: 1920x1080, FHD
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 808.128x454.572 mm
Surface: Antiglare (Haze 1%), Hard coating (3H)
Brightness: 400 cd / m²
Contrast Ratio: 1400: 1
Display Colors: 16.7M (8-bit), CIE1931 68%
Response Time: 6/8 (Tr / Td)
Frequency: 60Hz
Lamp Type: 6 strings WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V