REPAIRING AND NOT THROWING AWAY

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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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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Sunday 9 February 2020

REPAIR / SERVICING TV PHILIPS 19PFL5522D

Technical description and composition of the PHILIPS 19PFL5522D TV, type of panel and applicable modules. The composition of the modules.
PHILIPS
Model: 19PFL5522D / 12
Chassis / Version: LC7.2E LB
Panel: M190A1-L02
Inverter (backlight): integrated into PSU
PWM Inverter: OZ960GN
MOSFET Inverter: P605
Power Supply (PSU): DAC-12M057 AF
PWM Power: TEA1532A
MOSFET Power: P6NK60
MainBoard: 3139_123_62613 WK713.5
IC MainBoard: CPU: M30300SAGP, Audio: TDA8932T
Tuner: TD1316AF / HP2
Specifications 19PFL5522D
PHILIPS 19PFL5522D
General recommendations for repairing TV LCD
Repair of the PHILIPS 19PFL5522D / 12 TV should begin with a fault diagnosis, which involves a careful examination of the external and internal elements of the device. A visible physical change in some components can sometimes suggest a further troubleshooting direction. Electrolytic capacitors of filters with a swollen body, as well as ring cracks or a layer of coal on burned-out resistors formed in the soldered terminals of the heating elements, sometimes tell the repairman the causes of the malfunction and possible consequences.
In the case when the 19PFL5522D does not turn on, does not respond to the remote control and buttons on the front panel, does not blink bulbs and does not show any signs of operability, the DAC-12M057 AF power supply module is probably faulty in this case. When diagnosing and repairing the power supply, after replacing the swollen capacitors of the secondary rectifier filters (if any), the mains fuse must first be checked. When it is broken, the power elements of the P6NK60 transistors and rectifier bridge diodes should be checked for avalanche (thermal) breakdown.
The reasons for the breakdown of the power switch in switching power supplies (IIPS) can be different, for example, a malfunction of semiconductor elements or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the EA1532A PWM controller chip or broken resistors in its bundle.
If the PHILIPS 19PFL5522D TV does not have an image, but there is sound, make sure that the backlight power converter (inverter) is working properly. It is also necessary to check the electrolytic capacitors of the filter of the secondary rectifiers of the BP (power supply) for excessive ESR. When disabling protection in order to enable the diagnosis of a malfunction, special care should be taken, and after completion of all repair work, it is necessary to restore the circuit and the inverter protection for further safe operation of the TV.
On the motherboard 3139_123_62613 WK713.5, in case of a malfunction, you should first check the performance of all the stabilizers and power converters of the microcircuits, and also, if necessary, update the software (software). In some cases, it is necessary to check or replace (if necessary) the elements of the MainBoard board - SVP CX32 7332 LF, PNX8314HS / 102, SiI9025CTU, TDA8932T. In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
Before replacing the TD1316AF / HP2 tuner, if there is no channel tuning, you must first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
Attention to the owners! Attempts at self-repair of the PHILIPS 19PFL5522D TV are not recommended by the manufacturer and can lead to serious negative consequences!


Service manual and sсhematic diagram 19PFL5522D/12 Chassis LC7.2E LB



 The appearance of the MainBoard 17MB95-2.1 is shown in the figure below:
17MB95-2.1
17MB95-2.1 can be used in TVs:
PHILIPS 40PFL3018T/12 (Panel VES400UNDS-01), TELEFUNKEN L32H125A3 (Panel VES315WNEA-01-B), TOSHIBA 22L1353R (Panel LM215WF4), TOSHIBA 22L1354R (Panel LM215WF4 TL G1), TOSHIBA 40L1353N (Panel LTA400HM23).
Main features of the PHILIPS 19PFL5522D device:
Installed matrix (LCD panel) M190A1-L02.
To power the backlight, a converter is used, combined with a power supply, controlled by the OZ960GN PWM controller. As power elements of the inverter, keys of the type P605 are used.
The necessary supply voltages for all nodes of the PHILIPS 19PFL5522D TV are generated by the DAC-12M057 power module or its analogs using TEA1532A microcircuits and P6NK60 type power switches.
MainBoard - the main board (motherboard) is a module 3139_123_62613, using CPU chips: M30300SAGP, Audio: TDA8932T and others.
The TD1316AF / HP2 tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: CMO
Model: M190A1-L02
Type: a-Si TFT-LCD, Panel
Diagonal size: 19.0 inch
Resolution: 1440x900, WXGA +
Display Mode: TN, Normally White, Transmissive
Active Area: 410.4x256.5 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 300 cd / m²
Contrast Ratio: 850: 1
Display Colors: 16.2M (6-bit + FRC)
Response Time: 1.5 / 3.5 (Tr / Td)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
Posted By: FRANK at 07:03
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