Question about Mitsubishi WD-52525 52" Rear Projection HDTV

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Checker board problem

Hey where do I order those four parts for the format board? I think the diode switches are bad because under a magnifying glass I see that they look like they barfed something dark brown out of them, I do want to change all four things unles you think I dont need to because visually the other two things look fine, two caps are bulging also on that board.I tried to use those id numbers and description numbers and the guy couldnt find them for me at digikey, do I need to order them through mitsubishi? if so what is their number where I can order them, also are they hard tosolder in? I have good expierience soldering things but these tiny things are new for me. I am in the process of ordering all the new caps that I need to replace.

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Good Day, xx07xx;
Not sure what your exact problem is but; Check D8F00 and D8F01 part # 264P828010, also check C8F26 and C8F29 part # 141P148000 (1 uFD, 25 V) on the FMT PCB (part # 930B924002). The bulging cap replace with 680ufd (same voltage), if they are 1,000ufd's. To order try 1-800-458-6053 B&D Enterprises.
Good Luck, big IRISH.

Posted on Sep 03, 2008

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TV has been working great for the past 6 years, this morning when turning on the TV nothing happens except the standby light flashes about 9 times on and off. No click like I usually hear when turning on...


Hi Dave,

We have had this same problem twice now - the first time under warranty (no problem) and now currently. The 9-blink error code refers to needing to replace two diodes on the G board. Specifically, D6301 and D6116.

The warranty time, the repair guy came and resoldered the new diodes onto the G Board, reinstalled the board, and was on his way. We had no problems for the next 3 years.

THIS time I ordered the two diodes from Andrews Electronics (www.andrewselectronics.com) am removing the G board myself and taking JUST THE BOARD to a local TV repair guy. This is a LOT cheaper than calling Sears or taking the whole TV to the repair guy. Here are the links to the specific diodes:

D6301 - http://parts.andrewselectronics.com/search/electronic-parts/parts/7/6-500-567-21.aspx

D6116 - http://parts.andrewselectronics.com/search/electronic-parts/parts/7/8-719-081-97.aspx

They are a heck of a lot less expensive than other places and the customer service I received was great!

I hope this helps!!

Jan 12, 2011 | Sony KP-57WS520 57" Rear Projection...

2 Answers

RCA P46731AT


Do you have the number of the board
that the glass bead was on

Dec 02, 2007 | RCA P46924 46" Rear Projection Television

Tip

Sony TV Error Code - Nine Blinks Solution.


Nine blinks of the standby light on any Sony TV indicates a problem on the "G" board. It is located on the left side of the unit looking from the rear. I seems that Sony sent out some sets with faulty diodes in them which fail at some point. They have corrected this and changed the part numbers on newer units. I listed that information below. You must have one of the older units. Do not resolder the diodes as the problem will return in short order.

Here is the error code explanation along with the repair procedure:

" Nine blinks - Replace D 6116 and D 6301 on the "G" board, do not resolder as this will only fix the problem temporarily. This could also be a Panel Module Error or Thermal Error but most likely the diodes. If it is an intermittent 9 blinks, meaning sometimes the TV comes on and other times you get flashing, then change the switching regulator on the "G" board or check connections. Make sure the regulator is -12 or -13 vdc(negative)."

The G board part number is A-1054-157-A. This board is no longer available from Sony. Rebuilt boards are available at http://www.moduslink/pts.com . The phone number is 1-800-844-7871 or you can go to their easy to use website and order a board. I have used them for years and have never had a bad board in fact their boards are probably better than factory. Certainly their warranty is (6 months).

Here are the diode part numbers and generic part numbers, and they can be purchased at www.partstore.com or www.encompass.com .

REF. NO. -SONY PART NO. - DESCP - GENERIC PART #
D6116 ----- 8-719-081-97----------DIODE --------MMDL914T1
------------------------------------------------------------No longer available

New part numbers:

D6116------ 8-719-074-43 -------- DIODE -------- BAS316-115
D6301------ 6-500-567-21--------- DIODE ------- 10ERB20-TB5

Remember, do not get cheap and only replace one diode at a time as you will still have the potential for failure. Also as I mentioned previously, resoldering will give you a temporary fix with the problem reappearing in a week or two.

This should solve your problem but I do know of one instance where a CRT (blue) was shorted out and caused this same problem, and the problem was not the G board.

To eliminate that issue remove the CRT boards one at a time (Blue, Green, Red) and turn the unit on with that color board removed. Of course remove power when unhooking the CRT board.

Continue doing this until all the boards are removed. If the set runs after removing any board, that CRT is bad and needs replaced. I have a tip at http://www.fixya.com/support/r4573850-change_crt_in_projection_tv which explains how to successfully change the CRT and where to get the parts. If the set never starts up the G board is most likely your problem and will need the diodes replaced.

This is all the info you will need to successfully repair your TV set. Good Luck and be very careful as there are lethal voltages inside the set.

Thanks for using FixYa.

hardrocko

on Aug 02, 2010 | Sony KP-51WS500 51" Rear Projection...

1 Answer

TV had red and green ghosts of increasing severity. A new tv is not an option at this time. We replaced the convergence and all seemed to go well. However when turned on, no picture and the on/off light...


mjsmail411,

You didn't mention whether you replaced the convergence ICs or the digital convergence box. If the unit worked, with misconvergence, prior to doing the work you have one of three problems. 1) The part you purchased is bad (I have had two new convergence ICs turn out to be bad out of the box) or 2) you shorted some points which should not be shorted when changing the part(s) or 3) there is still a bad part in the circuit which hasn't been changed/found yet.

First look at the soldered connections of the repair with magnifier glasses and make absolutely sure that no connections are bridged. If you do not find any problems check all the resistors and diodes in the circuit to make sure that when the original part failed it did not also short a diode or resistor. This would not affect the circuit startup until the new part was put in.

In addition I have a tip at http://www.fixya.com/support/r4220499-change_projection_tv_convergence_ics which could be helpful.

Thanks for using FixYa and for the great rating.

hardrocko

Oct 13, 2010 | Hitachi Televison & Video

3 Answers

Center convergence is adutable & good. side &edge cannot be adjusted. someone said to replace the caps but I don,t know which ones to replace.


This is a PTK 195 chassis and it rarely has any convergence circuit problems.

THERE IS ONE COMMON VERY INEXPENSIVE THING THAT USUALLY CAUSES THIS PROBLEM IN THIS EXACT SET.

You will need
a volt/ohm meter to see if your set has this problem. If you unplug the set and remove the back cover ABOVE ALL THE MAIN CIRCUIT BOARDS on the bottom of the set you will find a small circuit board about 3 inches wide and 9 inches long.

This board provides the primary voltages for the Convergence circuit the set uses.

There are two or three plugs, and four screws that secure the board---very easy to get out but note and or mark the plugs so you get them back correctly.

On the right side of the board you will find a group of about ten diodes---all of them EXCEPT TWO are the same size.

I have seen in this set twenty times that ONE of the two large diodes in bad (shorted).

Very easy to test---a diode with an ohmmeter (set range to 20k) should only have a reading in one direction= usually in one direction you will read about 4k and when you reverse the test leads NO reading.

A shorted diode will read like a good fuse===0 reading in both directions(a short).

If you find one of the two large ones is shorted they are 3 amp 1000 PRV (Peak reverse voltage) and what are called fast or high speed switching.

If one is bad you do not have to replace both. If you do not know what they look like I can provide a photo here showing you. Each diode has a band on it noting polarity. When you replace it the new one MUST BE FACING WITH THE BAND IN THE SAME DIRECTION. You will if one is bad only have to solder two leads==one on each end of the part.

I have tried to make this answer as detailed as I can since I do not know your skill level. IF WHAT I SUSPECT IS WRONG this is one of the most easy sets ever made to repair this problem in.

Please let me know if you have questions and or need more help---I am here to help.

SD TECH

Keep in mind I am in California and here from noon until late each evening local time.

Mar 16, 2010 | RCA P52937 52" Rear Projection Television

2 Answers

Sony KP-43t70 43 inc. rear projection TV


hello if i was repairing it i use a good strong light and magnifying glass to see if is and burn't parts or any bulging caps any blown chips if these are ok then start to check parts. first i always check diodes then transistor then resistor then capacitors it can take a lot of time it. would be easyier if you know some 1 who is good with electronics it is worth fixing but it will cost you . hope you can get sorted shaun

Dec 28, 2009 | Sony KP-43T70 43" Rear Projection...

1 Answer

Checker board screen in mitsubishi


Good Day, xx007xx;
680 from 1 K is from Mit's, common parts, get from ant local parts or TV service center. Good Luck, big IRISH.

Sep 04, 2008 | Mitsubishi WD-52525 52" Rear Projection...

4 Answers

Whats with my tv?


Good Day;

Replace all caps that are swollen, but resolve your checker pattern:

1. Tile or block pattern replace D8F00 and D8F01 part # 264P828010, also replace C8F26 and C8F29 part # 141P148000 (1 uFD, 25 V) on the FMT PCB (part # 930B924002).

The diodes have a stripe (line) that is the cathode, at one end of the device, the board will reflect that line. Good Luck, big IRISH. PS ; De solder as best as you can, glue is under part, heat one end, while prying up, heat other end. It will come off with moderate to mid high heat.

Sep 01, 2008 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

55p8288 46" Magnovox


in the circuit board labelled "power on"it is a tacking change that switch.

Jul 05, 2008 | Philips Magnavox 51MP392H Rear Projection...

3 Answers

Sony KP-51Ws520


9 blinks means, "Zero Crossing Detector" and the probable cause locations listed are "D6166 or D6114 is open (G board)". I had the exact same problem so I just ordered a new G board and swapped it with the old one and now everything works fine! You could order a new one at this site: http://www.partstore.com/PartSearch.aspx?PartNumber=A1054157A&x=31&y=19. The Sony board number is A1054157A. Replacing the G board is rather simple; all you got to do is pull out the back cover of the TV and the G board is the first board on your very left. After that unplug the four connectors and replace it with the new one. Here is a picture of the G board inside your TV: http://img47.imageshack.us/img47/8396/backev6.jpg. Hope this helped!

Apr 24, 2008 | Sony KP-51WS520 51" Rear Projection...

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