REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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Tuesday 4 February 2020

REPAIR / SERVICING TV PHILIPS 55PFL6007T

Technical description and composition of the PHILIPS 55PFL6007T TV, type of panel and applicable modules. The composition of the modules.
PHILIPS LED
Model: 55PFL6007T / 12
Chassis / Version: QFU2.1E LA
Panel: LC550EUF (FE) (P1)
LED backlight: 6922L-0030A, 6920L-0001C
LED driver (backlight): integrated into PSU
PWM LED driver: OZ9909TN
Power Supply (PSU): PLDK-P107B 272217190604 GL-PSL55-3-3D-Full
PWM Power: SCY99102BDR2G (PFC), L6599, FSL106MR
MOSFET Power: MDF11N60
MainBoard: 310431365664 310432868322
IC MainBoard: FUSION120, H5TQ2G83BFR, H26M21001ECR, TAS5731P1
Tuner: SUT-RE214AN
Technical Specifications 55PFL6007T
PHILIPS 55PFL6007T
General repair guidelines for TV LCD LED
Malfunctions of the PLDK-P107B 272217190604 GL-PSL55-3-3D-Full power supply module can be expressed in different ways, for example, the PHILIPS 55PFL6007T does not turn on at all and the control lights on its front panel do not light up and do not blink, there are no signs of operability. When diagnosing and repairing the power supply, after replacing the swollen capacitors of the filters of the secondary rectifiers (if any), you must first check the mains fuse. When it is broken, the power elements of transistors and rectifier bridge diodes should be checked for avalanche (thermal) breakdown.
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 microcircuit SCY99102BDR2G, L6599, FSL106MR, which it is desirable to check by replacement, are subject to verification.
If the PHILIPS 55PFL6007T does not have an image, but there is sound, the C550EUF (FE) (P1) panel backlight LEDs or their power converter may malfunction - the LED driver.
In case of breaks in the LED circuit, a complete disassembly of the panel is required, the LEDs are checked for an open circuit, as well as the reliability of the connections in the connectors and rations of the terminals.
To check the health in the LED circuit, it is better to use a current source with a maximum voltage of 200V. We do not recommend using any voltage sources for this purpose. You can test each LED individually with a simple Chinese multimeter (powered by 9 volts) in the P-N-junction test mode. If you connect the red probe of the multimeter to the anode of the LED, and the black to its cathode, then the 3-volt LED will light up slightly, and in the opposite direction you can detect the transition of the emergency zener diode. A zener diode PN junction indirectly indicates a LED-a
In cases of attempts to repair the motherboard 310431365664 310432868322, it is necessary to check the operability of the linear stabilizers and power converters of its microcircuits and, if possible, update the software (software). BGA chips can sometimes be diagnosed with local heating.
Board repair and replacement of FUSION120, H5TQ2G83BFR, H26M21001ECR, TAS5731P1 microcircuits are carried out with the necessary equipment, and the corresponding element base. Faults associated with the application of BGA processor soldering technologies can be localized by the heating method.
Before changing the SUT-RE214AN tuner, if it is not possible to tune to television channels, make sure that there are supply voltages that must be measured at the corresponding tuner pins and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
Attention to the owners! Attempts at self-repair of the PHILIPS 55PFL6007T TV are not recommended by the manufacturer and can lead to serious negative consequences!


Service manual and schematic diagram 55PFL6007T/12 Chassis QFU2.1E LA

PLDK-P107B Power Supply schematic diagram.


Chassis QFU2.1E LA for models:
32PFL6007H/12, 32PFL6007K/12, 32PFL6007T/12, 32PFL6087H/12, 32PFL6087K/12, 32PFL6087T/12
37PFL6007H/60, 37PFL6007H/12, 37PFL6007K/12, 37PFL6007T/12, 37PFL6777H/12, 37PFL6777K/12
42PDL6907H/12, 42PDL6907K/12, 42PDL6907T/12, 42PFL6007H/12/60, 42PFL6007K/12, 42PFL6007T/12/60, 42PFL6057H/12/60, 42PFL6057K/12, 42PFL6057T/12/60, 42PFL6067H/12/60, 42PFL6067K/12, 42PFL6067T/12/60, 42PFL6097H/12/60, 42PFL6097K/12, 42PFL6097T/12/60, 42PFL6687H/12/60, 42PFL6687K/12, 42PFL6687T/60, 42PFL6877H/12/60, 42PFL6877K/12, 42PFL6877T/12/60
47PDL6907H/12, 47PDL6907K/12, 47PDL6907T/12, 47PFL6007H/12/60, 47PFL6007K/12, 47PFL6007T/12/60, 47PFL6057H/12/60, 47PFL6057K/12, 47PFL6057T/12/60, 47PFL6067H/12/60, 47PFL6067K/12, 47PFL6067T/12/60, 47PFL6097H/12/60, 47PFL6097K/12, 47PFL6097T/12/60, 47PFL6687H/12/60, 47PFL6687K/12, 47PFL6687T/60, 47PFL6877H/12/60, 47PFL6877K/12, 47PFL6877T/12/60
55PFL6007H/12, 55PFL6007K/12, 55PFL6007T/12, 55PFL6097H/12, 55PFL6097K/12, 55PFL6097T/12.

LED backlight:
6922L-0030A 1-1 = 42 APT TV REV 0.6 1 L-Type 6920L-0001C и 42 APT TV REV 0.6 1 R-Type 6920L-0001C

 The appearance of MainBoard 310431365664 is shown in the figure below:
310431365664
310431365664 can be used in TVs:
PHILIPS 32PFL6007T/12 (Panel LC320EUF FEP1 code 423), PHILIPS 32PFL6008T/60 (Panel LC320EUF (FE)(P1) code 423), PHILIPS 32PFL6087T/12 (Panel LC320EUF (FE)(P1)), PHILIPS 32PFL6087T/12 (Panel LC320EUF FE P1), PHILIPS 42PFL6007T/60 (Panel LC420EUF (FE)(P1)), PHILIPS 42PFL6057T/60 (Panel LC420EUF FC P1), PHILIPS 42PFL6097T/60 (Panel LC420EUF (FE)(P1) code 322 p/n: 932228895682), PHILIPS 42PFL6877T/60 (Panel LC420EUF (FE)(P1)), PHILIPS 47PFL6057T/60 (Panel LC470EUF FE P1 (LG/PH) B code 323 p/n: 932228896682), PHILIPS 47PFL6097T/60 (Panel LC470EUF (FE)(P1)), PHILIPS 47PFL6877T/60 (Panel LC470EUF FE P1), PHILIPS 55PFL6007T/12 (Panel C550EUF (FE)(P1)), PHILIPS 60PFL9607T/12 (Panel LK600D3LB63 (SRJ)), PHILIPS 42PFL6067T/12 (Panel LC420EUF (FE)(P1)), PHILIPS 47PFL6007K/12 (Panel LC470EUF (FE)(P1)).
PSU Advanced
The PLDK-P107B power supply module is made using the Power Factor Correction (PFC) scheme to eliminate multiple AC harmonics introduced into the power supply by the device. The PFC node is a Step-Up Converter based on the SCY99102BDR2G PWM controller, which evenly distributes high-frequency impulses of the charging current of the electrolytic capacitor of the rectifier filter of the mains voltage over a period of 50 Hz. The current of its charge in this case will already be determined not by its reactance (usually 10-30 ohms for the network frequency), but by the elements of the converter. As a result, a change in the amplitude of the pulses (envelope) of the consumed current of the converter will repeat the shape and phase of the input sinusoidal voltage. The availability of the increased voltage (about + 380V) in the operating mode on the capacitor of the line filter indicates the serviceability of the PFC node.
The appearance of the power supply
Main features of the PHILIPS 55PFL6007T device:
Installed matrix (LED-panel) LC550EUF (FE) (P1).
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by the OZ9909TN PWM controller.
The necessary supply voltages for all nodes of the PHILIPS 55PFL6007T TV are generated by the PLDK-P107B power module or its analogs using SCY99102BDR2G (PFC), L6599, FSL106MR microcircuits and MDF11N60 power switches.
MainBoard - the main board (motherboard) is a module 310431365664, using chips FUSION120, H5TQ2G83BFR, H26M21001ECR, TAS5731P1 and others.
The SUT-RE214AN tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: LG Display
Model: LC550EUF-FEP1
Type: a-Si TFT-LCD, Panel
Diagonal size: 55 inch
Resolution: 1920x1080, FHD
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 1209.6x680.4 mm
Surface: Antiglare (Haze 1%), Hard coating (2H)
Brightness: 400 cd / m²
Contrast Ratio: 1600: 1
Display Colors: 16.7M / 1.06B (8-bit / 8-bit + Dithering), CIE1931 72%
Response Time: 5 (G to G)
Frequency: 120Hz
Lamp Type: WLED Without Driver
Signal Interface: LVDS (4 ch, 8/10-bit), 92 pins
Voltage: 12.0V