Mitsubishi WS65869 Flashing Green Light

202 posts / 0 new
Last post
Tinkertoy
Tinkertoy's picture
Hello All,

Hello All,

I sent a request or two a few months ago for the instructions. I have a WS-65869 with the blinking green light of death. When I did not get a response, I guessed the thread was no longer being monitored.

However, I found instructions on the cap change on another site. I have changed out the 7 caps with 35v, 1000u high temp. No luck, the green light still won't stop blinking. I also tested the 3 & 5v fuses on the DM board. They are fine.

Anyone have any ideas? My Email is hecklenjeckle@gmail.com

Thank you!
Jeckle

Larry Dillon
Larry Dillon's picture
May have bad convergence IC's

May have bad convergence IC's, check F9A04 and F9A05, If one or more of these fuses is no good replace the convergence IC'S

Tinkertoy
Tinkertoy's picture
Thanks for the quick response

Thanks for the quick response, Larry! I just checked all 6 of the F9A fuses, and I have continuity through them all. While I was there, I checked the other 3 fuses marked on the diagram, and they are good also. Argh!

Jeckle

paripa
paripa's picture
This may help techs or the

This may help techs or the novice.  The WS65869 takes 7 capacitors to repair.  After a power outage... the unit caught the seemingly famous blinking light syndrome.   I paid an authorized Mitsubishi repair company to fix the unit and agreed to the estimated cost of $450. I was required to pay a deposit of $143 before making the house call.  When the tech took apart the unit, none of the capacitors showed any visual damage such as bulging or leaking so often referred to.  The tech noted that the capacitors looked good, and that it probably wasn't the problem... suggesting the DM board had to be bad.  Regardless, he went through the motions of testing each capacitor on the board with a meter, and I saw for myself that each one tested out fine.  After the company found that a replacement board was not available, they offered to come back to the house, remove the board, send it out for repair, and then re-install it 4 weeks later - with the total repair price at $975. This obviously gave me concern - why would I spend that on a TV that was 7 years old?  For a second opinion, I called another authorized Mitsubishi repair company, told him my story, and he agreed to come out and give it a second look for $100 house call fee.   He was convinced before seeing the TV that the capacitors had to be replaced before deeming the DM board defective.  He said the capacitors don't always show or test failure, and that once real power is applied they can simply not work.   His deal was good.... for $100, he would attempt the repair, if it didn't work I was out of the $100.  If changing the caps worked,  the total repair would cost me $265.  He changed all 7 capacitors and the TV worked fine.  I wished I had called the 2nd company first, as I could have saved the $143 deposit for my non-repair... nevermind that I could have been sucked into spending the $975.  In summary, change out all the caps first, whether they appear to be bad or not... don't bother throwing a meter on them before doing the work.    

fried mits
fried mits's picture
can someone please emaul me

can someone please emaul me the instructions?
lvpanerai@gmail.com

paripa
paripa's picture
fried mits said: can someone

fried mits said: can someone please emaul me the instructions? lvpanerai@gmail.com

Dear Fried Mits,

The home page of techlore has an article about a different Mits. model with the same problem.  In that article (3rd page) it provides the following link to a repair manual, which should be close enough.

http://www.techlore.com/download/24849/Mitsubishi-WS-xxx13-Service-Manual/

Tinkertoy
Tinkertoy's picture
Larry Dillon said: May have

Larry Dillon said: May have bad convergence IC's, check F9A04 and F9A05, If one or more of these fuses is no good replace the convergence IC'S

Thanks for the idea, Larry.  I have tested the fuses on all of the boards, and I get continuity through every one.  Would you have any other suggestions?

kpwang
kpwang's picture
I want to let everyone know

I want to let everyone know that my husband and I are not tv repairmen. We took Larry's instructions, printed them out, purchased the 7 capacitors from Mouser Electronics, and took our printed instructions sheets to the back of the tv and began taking it apart. All the capacitors looked good. We didn't do the soldering job. We took the daughter board with the capacitors attached and the 7 new ones to our local tv guy and he took off the old ones and soldered the new ones on. We were afraid to try the job of soldering with our senior eyes. The tv has been fine since. This blinking green light problem started after I had unplugged the TV for a severe lightning storm and had left it unplugged for a week or two. Total cost of repair $10 in parts, $20 labor, and $5 tip!

fried mits
fried mits's picture
thanks Paripa,

thanks Paripa,
will those instructuons work for the 65689? thanks for the help. i was just about to give up on my set which i had calibrated m

Fr0st
Fr0st's picture
I have the WS65869 and I am

I have the WS65869 and I am in need of the specific instructions. I changed the fuses on the DM power board with no avail. my email is l0ck_2000@yahoo.com

Bum Mits
Bum Mits's picture
Oh no! I replaced the caps on

Oh no! I replaced the caps on my mits, and it seemed to work. After a few days the TV now turns off suddenly, the timer light starts blinking, after 30 seconds so tv comes back on.

What the heck would cause this? I replaced the 7 caps with 50v versions. Any ideas?

Bum Mits
Bum Mits's picture
Bum Mits said:

Bum Mits said:

Joey78 said: Hi Larry, I have the green blinking light too. Will you please send reapair instructions to j_annen@hotmail.com? Thanks, Joe

Larry could I get the instructions for the blinking light repair on a 65869? Also, will 50v capasitors work if they are still 1000u and 105C? I know they are a little larger but they can fit...

Thanks to Larry and this all who have contributed to this site! My 65869 is operating perfectly after I removed the seven (7) capasitors on the DM daughter board and replaced them with 1000u, 50v, 105C capasitors. The 50v caps were larger, but they went in fine. The caps were not bulging and had no sign of any defects. I removed the entire "metal box" by unplugging the leads after carefully marking thier original location. I bought the caps locally at Fry's electronics in the DFW, TX area. They were overpriced at $3.89 each, but worth it not having to ship and wait!  I cleaned 8 years of dust off the lenses while my TV was apart, and it made a huge improvement!  This repair could be done in an hour easy if you had the parts on hand and had read hear first. All that is needed is desoldering braid ($3), 7 capasitors, a small amount of solder, and a 30 watt soldering gun.

fried mits
fried mits's picture
please email me the

please email me the instructions. i have the blinking timer light as well and it really sucks.
lvpanerai@gmail.com
TIA

Omar
Omar's picture
Larry, Can you please email

Larry, Can you please email me the instructions @ OCUlater@comcast.net . I ordered the hightemp caps from www.parts-express.com. I just need the instructions now. Thank you for your time!

DamianTaimi
DamianTaimi's picture
Happy New Year to all. I seem

Happy New Year to all. I seem to be having the same problem with the blinking green light on my WD-62525. I was hoping someone could help me by sending those repair instructions to dcarpentry@comcast.net. Greatly appreciated.

Mizzou Will
Mizzou Will's picture
I finally got my TV to work

I finally got my TV to work but changing the Capacitors and Thermal sensor didn't do the trick. I figured out the whole problem after reading a Mitsubishi tech manual.

The Problem:
Mits DLP TV has two microprocessors, PC and DM, that communicate with each other. Normally when the TV powers up the DM processor is waiting for a request from the PC processor and communication is established. After a power surge, the boards may lose communication with each other. Each processor sends out a request and waits for a response from the other processor, bad idea. The problem is each board is waiting for a response at the same time. Microprocessors canÂ’t receive a request when it sending a request. So either processor get the request cause they both sending out a request at the same time then listen at the same time. If the processors donÂ’t get a response, they reset each other, even worse idea. The reset put the processors right back where they started. This is why the front reset button does not work. THE MICROPROCESSORS HAVE A TIMING CYCLE PROBLEM WHICH IS COMMON IN DIGITAL CIRCUITS AFTER A POWER SURGE OR BAD SHUTDOWN, WHICH IS WHY THIS AFFECTS SO MANY DIFFERENT MODELS. Mitsubishi should of never allowed both microprocessors the ability to reset the other. Only one processor should be able to reset the other and the other processor should always be waiting for a request after communication loss.

The Solution:
1. Power the TV on and wait for the blinking green light to stop.
2. Press input and menu at the same time and make sure you have error code 12
If you donÂ’t get this error code you have a different problem.
3. Press all the front panel buttons on the TV one at a time, except the reset button and power button.
This sends a system command to one of the processors and interrupts the processors from waiting for a response. After the processor is done with the system command request, it sends a request to the other processor that is waiting.
4. Hit the power button on the TV and it should fire up.
If it doesnÂ’t work repeat step 3 and 4 several times. When the processor was done with the system command request, it sent a request to the other processor but the other processor was sending a request too. The trick is to get the processors off the same timing pattern. If after several times it didnÂ’t work you probably need to replace the caps since the power surge burned them out.

Misc:
Some people change their caps and get the TV to work and some donÂ’t. The microprocessors continue to be hung up after you unplug the TV because the caps act as batteries. The microprocessors still have a timing problem because the processors never stop working. These microprocessors are low power which means these caps can keep them powered up for days. This is why some people get their TV to work after days of sitting in the corner, unplugged. If you remove good caps from the DM board, the TV might fire up because you removed the processors power supply on the DM board and they are on the correct timing cycle after you changed them.
If you have a power surge and it burns out your caps you get the blinking green light of death. If it didnÂ’t burn them out, then you get a timing problem and you get the same blinking green light of death. Therefore, the blinking green light of death can be cause by a timing problem or bad caps or both.

FYI:
Put the TV in low energy mode. This allows the DM processor to shut off when the TV is off. During power up, the DM processor has to wait for a signal from the PC processor. After a power surge, the processors wonÂ’t care if they lost communication cause the DM processor has to power up from scratch and wait for the PC processor. This should fix any future blinking green light of death.

Good Luck,
Will
Mizzou Engineering Graduate

Tinkertoy
Tinkertoy's picture
Hello All,

Hello All,

I sent a request or two a few months ago for the instructions. I have a WS-65869 with the blinking green light of death. When I did not get a response, I guessed the thread was no longer being monitored.

However, I found instructions on the cap change on another site. I have changed out the 7 caps with 35v, 1000u high temp. No luck, the green light still won't stop blinking. I also tested the 3 & 5v fuses on the DM board. They are fine.

Anyone have any ideas? My Email is hecklenjeckle@gmail.com

Thank you!
Jeckle

Larry Dillon
Larry Dillon's picture
May have bad convergence IC's

May have bad convergence IC's, check F9A04 and F9A05, If one or more of these fuses is no good replace the convergence IC'S

Tinkertoy
Tinkertoy's picture
Thanks for the quick response

Thanks for the quick response, Larry! I just checked all 6 of the F9A fuses, and I have continuity through them all. While I was there, I checked the other 3 fuses marked on the diagram, and they are good also. Argh!

Jeckle

paripa
paripa's picture
This may help techs or the

This may help techs or the novice.  The WS65869 takes 7 capacitors to repair.  After a power outage... the unit caught the seemingly famous blinking light syndrome.   I paid an authorized Mitsubishi repair company to fix the unit and agreed to the estimated cost of $450. I was required to pay a deposit of $143 before making the house call.  When the tech took apart the unit, none of the capacitors showed any visual damage such as bulging or leaking so often referred to.  The tech noted that the capacitors looked good, and that it probably wasn't the problem... suggesting the DM board had to be bad.  Regardless, he went through the motions of testing each capacitor on the board with a meter, and I saw for myself that each one tested out fine.  After the company found that a replacement board was not available, they offered to come back to the house, remove the board, send it out for repair, and then re-install it 4 weeks later - with the total repair price at $975. This obviously gave me concern - why would I spend that on a TV that was 7 years old?  For a second opinion, I called another authorized Mitsubishi repair company, told him my story, and he agreed to come out and give it a second look for $100 house call fee.   He was convinced before seeing the TV that the capacitors had to be replaced before deeming the DM board defective.  He said the capacitors don't always show or test failure, and that once real power is applied they can simply not work.   His deal was good.... for $100, he would attempt the repair, if it didn't work I was out of the $100.  If changing the caps worked,  the total repair would cost me $265.  He changed all 7 capacitors and the TV worked fine.  I wished I had called the 2nd company first, as I could have saved the $143 deposit for my non-repair... nevermind that I could have been sucked into spending the $975.  In summary, change out all the caps first, whether they appear to be bad or not... don't bother throwing a meter on them before doing the work.    

fried mits
fried mits's picture
can someone please emaul me

can someone please emaul me the instructions?
lvpanerai@gmail.com

paripa
paripa's picture
fried mits said: can someone

fried mits said: can someone please emaul me the instructions? lvpanerai@gmail.com

Dear Fried Mits,

The home page of techlore has an article about a different Mits. model with the same problem.  In that article (3rd page) it provides the following link to a repair manual, which should be close enough.

http://www.techlore.com/download/24849/Mitsubishi-WS-xxx13-Service-Manual/

Tinkertoy
Tinkertoy's picture
Larry Dillon said: May have

Larry Dillon said: May have bad convergence IC's, check F9A04 and F9A05, If one or more of these fuses is no good replace the convergence IC'S

Thanks for the idea, Larry.  I have tested the fuses on all of the boards, and I get continuity through every one.  Would you have any other suggestions?

kpwang
kpwang's picture
I want to let everyone know

I want to let everyone know that my husband and I are not tv repairmen. We took Larry's instructions, printed them out, purchased the 7 capacitors from Mouser Electronics, and took our printed instructions sheets to the back of the tv and began taking it apart. All the capacitors looked good. We didn't do the soldering job. We took the daughter board with the capacitors attached and the 7 new ones to our local tv guy and he took off the old ones and soldered the new ones on. We were afraid to try the job of soldering with our senior eyes. The tv has been fine since. This blinking green light problem started after I had unplugged the TV for a severe lightning storm and had left it unplugged for a week or two. Total cost of repair $10 in parts, $20 labor, and $5 tip!

fried mits
fried mits's picture
thanks Paripa,

thanks Paripa,
will those instructuons work for the 65689? thanks for the help. i was just about to give up on my set which i had calibrated m

Fr0st
Fr0st's picture
I have the WS65869 and I am

I have the WS65869 and I am in need of the specific instructions. I changed the fuses on the DM power board with no avail. my email is l0ck_2000@yahoo.com

Bum Mits
Bum Mits's picture
Oh no! I replaced the caps on

Oh no! I replaced the caps on my mits, and it seemed to work. After a few days the TV now turns off suddenly, the timer light starts blinking, after 30 seconds so tv comes back on.

What the heck would cause this? I replaced the 7 caps with 50v versions. Any ideas?

varanus1
varanus1's picture
I have just joined the

I have just joined the flashing green light club. Don't know if it matters, but mine never stops blinking. I would GREATLY appreciate it if someone could PLEASE email the instructions for the fix to me at
varanus1@pacbell.net
Model number is WS65869
Thanks,
Robert

wagkeg007
wagkeg007's picture
Larry,

Larry,
I am also having the flashing green light problem. Could you email me the fix to wagkeg@charter.net.
Model is WS-65869.
Thanks

wagkeg007
wagkeg007's picture
If anyone has the

If anyone has the instructions, I would appreciate if you would email them to wagkeg@charter.net

Thanks,

Pages

 

Connect With Techlore