PHILIPS 42PFL3007H TV description and composition, panel type and applicable modules. The composition of the modules.PHILIPS
Model: 42PFL3007H / 60
Chassis / Version: TPM9.1E LA
Panel: LC420WUE (SC) (A1) code 152 p / n: 932228942682
T-CON: 6870C-0310C LC420WUN SCA1
Inverter (backlight): 715G5153-P01-000-002M
PWM Inverter: OZ9976GN
MOSFET Inverter: K13A50D
Trans Inverter: 80GL32T-25-YS TN
Power Supply (PSU): 715G5153-P01-000-002M 996510051105
PWM Power: LD7523GS, LD7591GS (PFC), A6069H (Standby 7pin)
MOSFET Power: K10A60 (PFC), P10NK70ZFP
MainBoard: 715G5155-M01-002-005X 996590000084 Ver A
IC MainBoard: TMDS361B, STA3818W, NT5CB64M16DP-CF, 24C128, MT5135AE
Tuner: ENV57U09D5F
Control: HT: 12-06-04?
Specifications 42PFL3007H
PHILIPS 42PFL3007H
General recommendations for repairing TV LCD
Repair of the PHILIPS TV with the TPM9.1E LA chassis should begin with a fault diagnosis, which involves a careful inspection of the external and internal elements of the device. Specific external damage to some elements can sometimes indicate further actions to determine the malfunction of the TV and localize the defect before the necessary measurements are taken. Elements with visible damage, for example, capacitors swelled up after boiling the electrolyte, charred resistors in certain nodes of the circuit, as well as ring cracks in solders will help the master to guess the causes and possible consequences of the malfunction.
If the TV does not turn on, no indicators on its front panel are lit or blinking. Also, if the TV does not respond to the remote control and buttons, it does not make any sounds or any signs of operability when it is turned on, there is a certain chance that the 715G5153-P01-000-002M 996510051105 power supply module is faulty and needs repair. Sometimes with similar manifestations a problem can only occur in the absence of processor power, which is typical for certain PHILIPS models. When repairing the power supply, it is advisable to start the diagnostics by checking the mains fuse and the electrolytic capacitors of the filters of the converter secondary rectifiers. In the event of a fuse breaking, the reason should be sought in the power semiconductor elements of the pulse converter of the main power supply. First of all, it is necessary to check the diodes of the bridge of the rectifier of the mains voltage and the power switch (s) of the converter.
It should be remembered that in the practice of repair, usually the power switches in switching power supplies (SMPS) do not fail due to their poor quality and, in such cases, it is necessary to look for the cause that led to a malfunction and provoked a breakdown of the key. Most often, the culprits of the accident are dried electrolytic capacitors or dangling resistors in the primary circuit, or the A606 PWM controller chip itself may be faulty (7). It is also necessary to check all the semiconductor elements of the stabilization circuit in the primary and secondary circuits.
If there is no image when you turn on the PHILIPS 42PFL3007H, or it appears for a second and disappears completely, but there is sound, most likely either the backlight lamps or their power converter (inverter) are faulty. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the general power supply unit. 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.
The motherboard 715G5155-M01-002-005X 996590000084 Ver A must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up constantly. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary. In some cases, to repair the MB board (SSB), it may be necessary to replace chips, for example, TMDS361B, STA3818W with new or obviously good ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
It should be remembered! Attempts to repair the PHILIPS 42PFL3007H 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 42PFL3007H/60 Chassis TPM9.1E LA
The appearance of the MainBoard 715G5155-M01-002-005X is shown in the figure below:715G5155-M01-002-005X
715G5155-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)).
PSU Advanced
A 4215G5153-P01-000-002M power supply module is installed in the 42PFL3007H / 60 TV using the PFC (Power Factor Correction) scheme acting as an active filter to eliminate the higher harmonic components of the current consumption. The boost converter based on the LD7591GS PWM controller does not allow the input rectifier filter's electrolytic capacitor to be connected to the network directly through open diodes when the charge current determines its reactance (of the order of 15-30 ohms at a frequency of 50 Hz). As a result of the conversion, the charging current of the capacitor will be determined in such a way that the envelope of the high-frequency pulses of the input current will repeat the phase and shape of the sine wave of the input voltage. The health check of the PFC unit is carried out by measuring the DC voltage on the capacitor of the rectifier network. In operating mode, it should be around 380V, in standby approximately 300V.
The appearance of the power supply
Main features of the PHILIPS 42PFL3007H device:
Installed matrix (LCD panel) LC420WUE (SC) (A1) code 152 p / n: 932228942682.
The matrix control uses the Timing Controller (T-CON) 6870C-0310C.
To power the backlight, an inverter 715G5153-P01-000-002M is used, it is controlled by the PWM controller OZ9976GN. The transformer 80GL32T-25-YS TN is installed in the inverter converter. As power elements of the inverter, keys of the K13A50D type are used.
The necessary supply voltages for all nodes of the PHILIPS 42PFL3007H TV are generated by the 715G5153-P01-000-002M power supply module or its analogs using the LD7523GS, LD7591GS (PFC), A6069H (Standby 7pin) microcircuits and K10A60 (PFC), P10NK70ZFP type power switches.
MainBoard - the main board (motherboard) is a module 715G5155-M01-002-005X, using microchips TMDS361B, STA3818W, NT5CB64M16DP-CF, 24C128, MT5135AE and others.
The ENV57U09D5F tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: LG Display
Model: LC420WUE-SCA1
Type: a-Si TFT-LCD, Panel
Diagonal size: 42 inch
Resolution: 1920x1080, FHD
Display Mode: IPS, Normally Black, Transmissive
Active Area: 930.24x523.26 mm
Surface: Antiglare (Haze 10%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1500: 1
Display Colors: 1.06B (8-bit + FRC), CIE1931 72%
Response Time: 5 (G to G)
Frequency: 60Hz
Lamp Type: 16 pcs EEFL Without Driver
Signal Interface: LVDS (2 ch, 10-bit), 51 pins
Voltage: 12.0V