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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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Wednesday, 2 September 2020

REPAIRING / SERVICING TV PANASONIC TX-22LT3

Technical description and composition of the PANASONIC TX-22LT3 TV, panel type and modules used. The composition of the modules.
PANASONIC
Model: TX-22LT3
Panel: 22Inch 16: 9
Inverter (backlight): integrated into PSU
PWM Inverter: C0ABCA000064
MOSFET Inverter: B1DBED000001
Power Supply (PSU): TNPA2896
MainBoard: TNPH0546AB & TXNDG10NPK
Tuner: ENG29519GF
TX-22LT3 Specifications
Close specifications! / Learn more ...
TV LCD TX-22LT3  Year of issue: 2003
Screen diagonal: 22 "(55 cm)
Screen format: 16: 9
Resolution: 852x480
Brightness: 450 cd / m2
Contrast: 400: 1
Viewing angle: 160 °
Pixel Response Time: 16ms
Progressive scan: yes
TV standards: PAL, SECAM, NTSC
Number of channels: 100
Teletext: no
Stereo sound: yes
Acoustics: two speakers
Interface: SCART, RGB
TV weight: 11.5 kg
PANASONIC TX-22LT3
General recommendations for TV LCD repair
Main features of the PANASONIC TX-22LT3 device:
Installed matrix (LCD panel) 22Inch 16: 9.
To power the backlight lamps, a converter combined with a power supply is used, controlled by a PWM controller C0ABCA000064. The keys of the B1DBED000001 type are used as power elements of the inverter.
The formation of the necessary supply voltages for all nodes of the PANASONIC TX-22LT3 TV is carried out by the TNPA2896 power module, or its analogs.
MainBoard - the main board (motherboard) is a TNPH0546AB module.
The ENG29519GF tuner provides reception of television programs and tuning to channels.
DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    LH12 Chassis for models TX-22LT3F, TX-22LT3V, TX-22LT3P




PANASONIC TX-22LT3 TV with LCD 22Inch, 22 "(55 cm) diagonal, 16: 9 format. Screen brightness of 450 cd / m² is provided by CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum to minimum brightness, is 400: 1. The input analog video signal can be processed in PAL, SECAM, NTSC systems. Stereo sound and the required sound output power is realized by two built-in speakers. The NICAM STEREO sound processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), SCART, RGB.
Overall dimensions: 586x388x67 mm.
TV weight: 11.5 kg.
Attention! Panel 22Inch 16: 9 LCD-TV PANASONIC TX-22LT3 is a rather expensive component.
Avoid impacts on glass and pressure on the surface of the screen to avoid irreversible damage to the LCD panel!
Posted By: FRANK at 05:50
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