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!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Thursday, 7 February 2019

PHILIPS LCD TV SMPS CIRCUIT DIAGRAMS

Philips LCD TV SMPS Circuit Diagrams

5000 SERIES 32”, 4100 SERIES 24”, 5000 SERIES 40” and 5000 SERIES 48” - Philips LCD TV SMPS Circuit Diagrams.
 All power supplies are a black box for Service. When defective, a new board must be ordered and the defective one must be returned, unless the main fuse of the board is broken; always replace a defective fuse with one with the correct specifications. This part is available in the regular market. Consult the Philips Service web portal for the order codes of the boards.
A 715G6550 PSU 

A 715G6863 PSU 
A 715G6934 – PSU 
Power Supply Unit (PSU)
Caution: it is mandatory to remount all different screws at their original position during re-assembly. Failure to do so may result in damaging the PSU.
1. Gently unplug all connectors from the PSU.
2. Remove all fixation screws from the PSU.
3. The PSU can be taken out of the set now.
Important delta’s with the TPM15.6L LA classis platform are
> New power architecture for LED backlight
> “Boost”-signal is now a PWM-signal + continuous variable.
The control signals are
> Stand-by (PS_ON)(only for 48 inch-715G6338)
> Lamp “on/off”
Backlight adjust (DIM) (not for PSDL)
The output voltages to the chassis are:
> 12V output (stand-by and on-mode for 32 and 40 inch)
> 8.5V output (stand-by for 48 inch)
> 12V output (on-mode for 48 inch)
> +12V_audio (audio AMP power) (on-mode)
> Output to the display; in case of
- IPB: High voltage to the LCD panel
- PSL and PSLS (LED-driver outputs)
- PSDL (high frequent) AC-current.
The diversity in power supply units is mainly determined by the diversity in displays. 
The following displays can be distinguished
> CCFL/EEFL backlight: power panel is conventional IPB
> LED backlight:
- side-view LED without scanning: PSL power panel
- side-view LED with scanning: PSLS power panel
- direct-view LED without 2D-dimming: PSL power panel
- direct-view LED with 2D-dimming: PSDL power panel.
[PSL stands for Power Supply with integrated LED-drivers.  PSLS stands for a Power Supply with integrated LED-drivers with added Scanning functionality (added microcontroller).  PSDL stands for a Power Supply for Direct-view LED backlight with 2D-dimming.]
Posted By: FRANK at 06:32
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