Having problems with your Projection Televisions ?

My TV is showing convergence symptoms: the screen looks like 3D effects and as if someone is pusing in the middle of the screen. I've replaced my STK's, 2 pico fuses on the G board, and tested each convergence resistor along with the pico fuses on the D board--albeit they were still soldered in place. I desoldered two pico fuses and one resistor to test them in said manner, but they checked out fine. I've gone over every square millimeter around the soldered area of each STK with a microsco



Answers :

One of two things:
\015\012 Either:
\015\012 a) The STK chips you put in are no good (not uncommon)
\015\012
\015\012or
\015\012
\015\012If you weren't careful you may have removed a surface mount resistor accidently while desoldering the orignal STKs. I had a customer do that to me once and figured it out by comparing the board to the schematic for that board location.

Repair Help & Product Troubleshooting for Projection Televisions
You need a second opinion or clarification ? ask it in the comment box OR you can Ask Your Own Question

Tips for a great answer:

  • Please provide as much detail as possible as this will allow our members to better understand and respond to your Comment
  • If you need clarification, ask it in the comment box
  • It's 100% free, no registration required

Suggested Questions/Answers :

It is recommended you read all this kind of situations

My TV is showing convergence symptoms: the screen looks like 3D effects and as if someone is pusing in the middle of the screen. I've replaced my STK's, 2 pico fuses on the G board, and tested each convergence resistor along with the pico fuses on the D board--albeit they were still soldered in place. I desoldered two pico fuses and one resistor to test them in said manner, but they checked out fine. I've gone over every square millimeter around the soldered area of each STK with a microsco


One of two things:\015\012 Either:\015\012 a) The STK chips you put in are no good (not uncommon)\015\012\015\012or\015\012\015\012If you weren't careful you may have removed a surface mount resistor accidently whi ... Sony KP-57WS500 57" Rear Projection Television

The convergence board has a +20V & -20V input. The +20V is OK, but the -20V measures about 4.5V when the cable is disconnected from the convergence board. I could not find any blown fuses but R858 & R859 on the Main Power Supply Board "appear" to have been overheated. I can not tell for sure though without removing the board and without a schematic to know what their resistance values should be. Although R858 & R859 are in the immediate area, I'm not sure if they are even in the -20V circuit. Ca


Replace R858 and R859...They also go bad frequently when the STK chips fail. \012\012For everyone else...\012\012All projection TV sets have two very common problems. One is convergence ( 3D/Warped video or d ... Akai PT5598HD 55" Rear Projection HDTV-Ready Television

I replaced the STK chips and one pico fuse that was blown on the input power board (the fuses and resistors near the STK chips are fine). I turn the power on, no screen and I get sound for 1 second, then it turns itself off. The power LED blinks 4 times, long pause then repeats. What should I look at next.


A blink of 4 times is an error code that there is no vertical deflection. There may still be a problem with the + or - 15 volt supplies. This error is generate when the vertical deflection pulse is missing. there might be a problem with ic 8003 ... Sony KP-51WS500 51" Rear Projection Television

I have a mitsubishi 55711 diamond series that the green light flashes. I replaced the 7 capacitors on the DM board per reading typical concerns and still same issue. I found the 125v 4a slow burn to be open circuit w/no continuity going through it. I dropped a bead of solder across and it popped 3 of the capacitors in about 5 seconds. is this a load bearing fuse or should i say a resistor of sorts or did it pop originally from something else in the tv and the capacitors was not the problem to st


Hi,\015\012\015\012F9B01(125v/4A) fuse was open because the DM power supply gone bad aside from the electrolytic capacitor that you've already been replaced. The faulty parts there are IC9B00(HIP6006CB), Q9B00(FDS6680A). Worst case cenario that ... Flat Panel Televisions

Sony rptv pico fuses keep going out whenever i plug a cable wire or video input? i just replace my sony convergence IC chips today and 2 resister, i turn the tv ON and it came on then i plug in a cabl


Still working on this set? Did you get a spark when you attached or tried to connect the cable wire to the coax cable fitting? ... Sony Projection Televisions

Heve a phillips 60pp9202 projection. i had convergence issues being that i couldnt move my red. i went in and replaced both ics but i forgot to check the resistors. a week later i finally got in there and found 2 bad resistors. the thing is i didnt take the convergence board out, nor did i unplug anything when i tested the resistors. i put the cover back on until i get the parts. now, for some reason, when i power up the set it will come on like normal, then you hear a click and the screen will


Get a complete kit from www.TvRepairKits.com and start over.They will walk you though the repair. ... Projection Televisions

Convergence replaced convergence chip and resoldered tower...convergence fine on tv portion...watching tv its fine. the problem is that svideo..composite and dvi stilll have convergence issue. is there a seperate board or fuse or chip that would cause this? will try to manually set covergence again. any help is appreciated


Sounds like your talking about an RCA HD rear projectio n if so the convergence defaulst will all have to be set and saved for each format. I can assist with info on how to do that if you send me a email to ... Projection Televisions

Looking for circuit diagram of convergence board for resistor ratings


... JVC AV-48WP74 48" Rear Projection HDTV-Ready Television

Hi, I bought a Vizio L32 HDTV10A that didn't power-up. There were charred components on the power board (an 8-pin IC with heatsink and 2 resistors). I replaced the power board, and the power LED then turned on (yellow) when power was applied. When the ON button is pressed, the power LED turns green for roughly 8 seconds and then the power LED turns yellow again. Nothing else happens. I checked many components (fuses, capacitor ESR, diodes, etc) on the main board and the master and slave inver


... Flat Panel Televisions

Mitsubishi WS55711 TV. 'm OK with a a soldering iron and have done similar repairs in the past but I'm far from an expert. I had a convergence problem and have installed a new convergence chip and replaced two bad resistors. First time I reconnected the set came on but the convergence screens didn't show the grids. I discovered I missed connecting a wire and tried again. Got the grid but had two problems: 1) I could align all but the top and bottom right corners which remained prett


Since you said replaced a chip, I presume it was the one STK-393-110 which is used in some models--most of their sets use two chips------I know these sets very well.I have a offer for you---if you have Yahoo IM we can chat there and ... Projection Televisions

Hello got a Rca model 52wh74 seriel #c222c1072 Manufactory date May 2006 this has the convergence issue 3 D Look and a bow in the picture were you see three of all the colors I also went to the menu to try to adjust the convergence but No option to do that I do have some tv repair experence and soldering ability -- They have talked about a fuse that can open up and possible cause this no option issue for the convergence or resoldering the fly bac


The convergence ICs are the most likely cause of this problem. STK392-150 is the ICs that you need -2 of them. You can purchase Sanyo STK392-150 FROM EBAY for about 15$ a piece. As for the fuse, I am not sure what are the specs of the fuse but you ca ... RCA HD52W59 HDTV Projection Television

I no longer have any Red color. Only yellow and blue. I've fixed a problem with a fuse on the deflection board. That fuse kept blowing so I re-soldered the FBT and it worked for several months. Now my red doesn't work. This just began last week and I didn't see any evidence of anything blowing. What are the potential problems, how can I narrow down what is the precise problem, and how do I fix them?


The most likliest cause would be a issue with the RED CRT drive board around 35.00 from www.tvrepairworld.com it could also be an issue with the RED CRT itself but thats doub ... RCA HD52W66 Projection Television

Open circuit 125v 4 amp fuse on DM board mitsubishi 55711. ran solder across top to complete circuit and popped 3 capacitors on board that i just replaced. the old ones did not look blown but thats what all the stuff on intenet said to do was the 7 capacitors first. still flashing green light


... Flat Panel Televisions

Have samsung hcm4216 w/ model code hcm4216wx/xaa that has convergence problemn would like to know correct current complete convergence board part and where i could purchase( I need to simply be able to replace entire component no soldering etc.


Try Partsstore.com for a whole board...\012 \012 ... Samsung HCM4216W 42" Rear Projection Television

It started with the convergence going haywire, not fixed by restoring factory default or advanced adjusting of convergence. I turned the set off and unplugged it. The next morning it would not come on - only the green light flashing. Coincidentally (???) the cable box also would not even power on - had to be replaced. I researched and found the problem with the green light (DM board kit available with 7 capacitors and 2 fuses plus instructions). But, am I going to have to replace the convergenc


Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both. Repair kits with instructions are also avail from ... Mitsubishi WS-55511 55" Rear Projection Television

Missing negative 21v going to convergence amps, the positive 21v is running high at 31v no fuse links open, no burned resistors. seems like amps are ok but the circuit for the convergence b+and b- is strange... not scan derived or right off smps. no shorted transistors. any ideas?


Yes ... Sony KP-57HW40 57" Rear Projection Television

Hi My friend has a JVC rear projection tv Model: AV-56Wp74 I changed the two convergence ICs and after that, one of the resistors blows on the convergence board everytime i turn on the tv.


Hi,Please replace IC804 (STK392-110) to stop blowing resistor, buy good quality STK and replace it to solve tv problem.Thanks. ... Flat Panel Televisions

Sony KP-61s65 rear projection tv convergence resistor values


... Projection Televisions

Mitsubishi convergence issue


First is consider what the issue is: nothing moves convergence wise or only one color etc.Also follow if needed the voltages from the pico fuses involved---one will be a negative voltage and the other a positive one--follow them from the dio ... Mitsubishi WT-42313 42" Rear Projection HDTV-Ready Television

60pp9753/17 replaced convergence ic chips power light comes on blinks once but no picture or sound. checked power supply slight humming noise coming from the ssb area small red light on the circuit board by the ssb


Soldering or bad IC chips...\012\012Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both. Repair kits ... Philips 60PP9753 60" Rear Projection Television

Replaced convergance chips adjusted red but blue will not adjust in any direction pico fuse is good Sony KP-57WS500


You can try to adjust in service mode but it sounds like you did not do this repair correctly. I would suggest getting instructions from sites such as www.TvRepairKits.com ... Sony KP-57WS500 57" Rear Projection Television

I have a Sharp Aquos LC-15-15s1u-s 12 volt TV in my Motorhome, Only the red light will show on front of tv, I tried the reset procedure, replaced all 3 fuses in tv and checked the other one that is soldered to the board and it still wont turn on. Any Ideas? what is the 16v capacitor supposed to ohm out at?


... Flat Panel Televisions

How do you change the pico fuses and convergence units on my Mitsubishi rear projection WS-65611?


Sd-tech.blogspot.com ... Mitsubishi WS-65611 65" Rear Projection Television

I have a WS-65611 that I have replaced the caps on the DM board. Before I did that, the power LED flashed non stop, Now it does the normal 70 seconds but when I attempt to turn it on, it shuts right back off. After attempting a power up I checked the error code I got a short protect error. I then removed the DM again and verified the caps were not shorted to the shield and checked the pico fuse and found everything to be good. Any ideas of where I should start looking??


Did you run the error code operational check? In not unplug the set and plug it back in. Press and hold the DEVICE and MENU buttons for 5 seconds and release. The LED should flash a certain number of times a short pause and another series of blinks. ... Mitsubishi WS-65611 65" Rear Projection Television

No sound just replaced convergence pico fuses, now no sound


Double check the wire connections especially the connectors between the circuit boards. They can sometimes not be seated fully and that can happen. I would also trace back the speaker wire plug to insure its plugged in correctly and at the correct lo ... Mitsubishi WS-65857 65" Rear Projection Television

A detailed question is important to get you a relevant answers

  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
all rights reserved to the respective owners || fullblownbass.com || Terms of Use || Contact || Privacy Policy
Load time: 0.0525 seconds