Panasonic PT-47WX49 47" Rear Projection Television - Answered Questions & Fixed issues


The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts.
https://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; [Exclude the model number], in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Panasonic... | Answered on Mar 03, 2018 | 104 views


The tubes have a useful life of 3000 hours. Replacing those tubes is close to $3000.00. It's going to be cheaper to get a smart flatscreen TV. The minute you try to clean the mirror, you will put tiny scratches on it. There is no bulb in tour TV, There are 3 cathode ray tubes. There is a lot of high voltage (25,00 or more) inside the TV, so be careful poking around inside the TV.

Panasonic... | Answered on Jul 11, 2017 | 92 views


Is the sleep timer on ? Could be that simple

Panasonic... | Answered on Jul 29, 2016 | 60 views


What is your question about speaker grill?

Panasonic... | Answered on Jun 10, 2015 | 53 views


COUNT # OF BLINKS AND SEQUENCE...CONTACT JVC TECH SUPPORT. IF YOU DECIDE TO REPAIR, LOCATE HONEST TV TECH

Panasonic... | Answered on Feb 03, 2014 | 64 views


sounds like a bad power supply my mother has one done the same thing we found out he power supply went bad $125 to fix so we junked it and she bought another TV

Panasonic... | Answered on Jan 29, 2014 | 75 views


picture on and off with sound

Panasonic... | Answered on Nov 27, 2013 | 528 views


Do you have a Hi Def box? If so, connect component cables from the box to a input on TV. Also try to change channels manually on set.

Panasonic... | Answered on Nov 14, 2013 | 21 views


Damaged Flyback transofrnmer or capacitors. Check it.

Panasonic... | Answered on Aug 26, 2013 | 23 views


check audio cabling if ok check u have not turned on mute function if ok ensure the volume is raised if ok the integrated audio amplifier is blown

Panasonic... | Answered on Jul 11, 2013 | 22 views


Press the 'Display' button. This is the common method to exit from service mode to Panasonic sets. If it do not help you, and wsh to get more details about how to enter and exit service mode, and make adjustments in this mode, check this link. Pull up older posts there, either by its left side bar, or see it in Timslide option.
http://electronicshelponline.blogspot.com/ It has details about service mode options to many brand and model TVs, including so many Panasonic models.


Panasonic... | Answered on Jun 25, 2013 | 34 views


have you tried to run auto convergence

Panasonic... | Answered on Mar 09, 2013 | 40 views


If just for cleaning inside it can be got at from the rear--that screen on that model listed is usually (from memory) removed from the rear.

Panasonic... | Answered on Dec 14, 2012 | 20 views


Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Below are more details for both items. Also, complete repair kits with instructions and repair support are avail from site such as www.TvRepairKits.com

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. The power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


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69189a5.pngSOLUTION #1

What you will need to do is convergence. You can get a repair kit from TvRepairKits.com . It includes replacement parts,step by step instructions, support, etc.

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

65af323.jpg

69189a5.pngSOLUTION

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from TvRepairKits.com . It includes replacement coolant,step by step instructions, support, etc.

Panasonic... | Answered on Oct 09, 2012 | 141 views


I have read both of the above posts.
On the first post, the 'codes' are the date codes. Both parts were manufactured in 2007, and will have no bearing on performance, should both lots not be the same as they were manufactured on different weeks.

On the second post:
There is allot of misinformation on the web pertaining to the applications of STK394-160(E)'s.
This special device was manufactured by Sanyo exclusively for Hitachi PTV's. They will not work in any other projection TV's except for Hitachi. Let me say this again, "They will not work in any other projection TV's except for Hitachi." The 'E' suffix is the nomenclature for PB Free or lead free. All STK394-160's were manufactured as 'lead free'. The 'E' will not appear on the part. Here's more information:

For Hitachi PTV's ( Projection TV's ), STK392-150 replaces STK392-110. STK392-120 should be replaced with STK392-120 or STK394-160's in matched pairs. The -120's are 4 amp devices while both the -110's and -150's are 3 amp. We market replacement kits for -110's that contain two original Sanyo STK392-150's and the associated resistors along with solder and resistor designations for all models. We also have an STK394-160 Kit, along with solder and resistor designations for all models.

Prelco electronics is a direct purchaser of STK's IC's directly from Sanyo Semiconductor Distribution. If you would like the real parts, your search has ended. Parts can be ordered on line, or toll free: 888-773-5268, ( 908-429-9999 local ) Sales X 2, http://www.prelcoparts.com
Feel free to contact us via email: sales@prelcoparts.com

Panasonic... | Answered on Sep 13, 2012 | 2,807 views


replace the stk 392-110 chips-----do it yourself repair if you can solder---I have instructions (email address?) available for free.

Panasonic... | Answered on Aug 27, 2012 | 49 views


Picture is contrast====Google the model number with manual to locate a owner manual which should be widely available.

Panasonic... | Answered on Aug 27, 2012 | 35 views


does the power indicator blink? If so thats an error code let me know how many time it blinks

Panasonic... | Answered on Jul 07, 2012 | 238 views

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