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AE700 Power on then off then on problem - Page 3

post #61 of 101
Quote:
Originally Posted by MorrisonHiker View Post

Heartland Services charged me a total of $274.10 for diagnosis of the problem, replacing the bad part and shipping it back. Fortunately I had paid for my projector with my Visa card and all of this was reimbursed under their free extended warranty policy.

This is exactly what I'm thinking too. I used Amex and apparently they extend warranty by a year. I'll call and check that out ...
post #62 of 101
Hopefully this is my final update. Hartland shipped the projector back, total cost was $280. They said they replaced the p-module (which I did myself, twice, both times the projector failed again very soon thereafter so I'm pretty sure there is something else that's wrong). Hopefully I won't have to ship it back to them in a day or two. At least their work is warranteed for 30 days, but I still don't want to be out of a projector and paying for shipping when I already told them I replaced the p-module twice. I'm hoping they replaced something else that was also bad

EDIT: When I got home and actually opened up the box, there was a note in there saying they replaced a fan. Its good that they replaced something that I didn't. So assuming this works fine again now, I guess its safe to say that a bad fan can also cause power off and blinking red lamp LED indicator light. No idea exactly what the relationship is to the p-module or if the bad fan can somehow blow out the p-module. Note did not actually say that they even replaced the p-module (the note was totally different from what the person who called to get payment authorization told me). They also upgraded the firmware which was nice of them.
post #63 of 101
Quote:
Originally Posted by Sodbuster View Post

I've had the AE700 for about two years as best I recall. After a few months the picture seemed dimmer, so I decided to buy another bulb directly from Japan. I installed that and everything worked fine until yesterday when the PJ began the on-off cycling. Because it sits on a high shelf behind the back wall of my HT (in a utility space), I didn't check to see what the LED was doing.

I decided to have a look at the bulb, but wasn't able to examine the innards very closely. The lamp time showed only 84 hours on this bulb, but I decided to install the original bulb again to see what happens (I found a note I had made stating this bulb had 325 hours running time).

Thus far I have run only a short test (maybe ten minutes), but no more on-off action during that time.

The PJ has been run about 15 hours since going back to the original bulb, and has performed normally. So there must be a flaw in the other bulb. Looks like the on-off-on etc. behavior can be caused by something besides a faulty power supply or ballast.
post #64 of 101
Well Heartland's fix lasted about as long as my own fix (2 days). Ugh, I'm getting tired of this. I guess they didn't test it very well. Panasonic says I have to let them try to fix it again before they will "discuss" other options. I'm so sick of this company right now I'll never buy another one of their projectors, even their repair center can't seem to fix this thing. When you include the initial price + a bulb + the repair cost, I've got close to $3,000 in this paperweight that only lasted a couple years.
post #65 of 101
I've sent my 900 to Hartland. I'll know in a couple (?) of weeks how well it works ...
post #66 of 101
Got the projector back from Heartland last week (again). This time the included paperwork says they replaced the ballast and the p-module (4th time the p-module has been replaced by the way). So in total the balast, a p-module, and a fan have been replaced. They didn't charge me anything this time, and they even paid for shipping both ways so I'm pretty happy about that. I've now been using the projector without any problems for 5 days which is a longer than it ever lasted after prior repairs, so I think its really fixed this time.

Just wanted to give an update for the possible benefit of future people needing repairs - I guess if you have the blinking red lamp LED and you are going to repair it yourself, you might as well replace the ballast and p-module at the same time. If you have the power on-off problem without the blinking red lamp LED you can probably get away with only replacing the p-module. Either way, Panasonic was pretty good about it, they gave me a refund for the p-module I ordered from them and returned when it did not fix my problem so it wasn't a big loss to try to fix it myself.




Quote:
Originally Posted by TraderGordo View Post

Well Heartland's fix lasted about as long as my own fix (2 days). Ugh, I'm getting tired of this. I guess they didn't test it very well. Panasonic says I have to let them try to fix it again before they will "discuss" other options. I'm so sick of this company right now I'll never buy another one of their projectors, even their repair center can't seem to fix this thing. When you include the initial price + a bulb + the repair cost, I've got close to $3,000 in this paperweight that only lasted a couple years.
post #67 of 101
If you have the power on-off problem without the blinking red lamp LED you can probably get away with only replacing the p-module.

It is not 100% sure but following a survey, it work for at least 10 of us.

The power supply diagram block is in fact 4 modules.
K-P.C. Board is the module with the fuses and switch on the back of the proj.
P-Module is a switching power supply (cost around 100$USD)
B-Module is the ballast (cost around 225$USD)
Q-Module is the controller mounted on the B module (someones call it microcontroller)

Took the projo apart again, replaced the P-module, put it back together, Works like a charm again. So, if your AE700 goes on and off, it is most likely the P-module. Repair yourself for less than 150$, you need:


-No particular technical skills
-Some guts and a bit of patience (taking apart and back together takes about 1h30)
-A replacement P-module revB. Original model was ETXMM519MBG sub by RevB ETXMM519MBGB.
-A service manual (recommended)
-A screwdriver (X), preferably magnetized, some of the screws are difficult to remove without losing them in the machine

Take a moment to clean, remove dust, check fans. Be careful to do not move dust on the LCD's panels. Do not touch the bulb. Do not try to adjust LCD (they are setted offset and it is normal). Be careful to residual current on the ballast. Be careful with static.

Good luck.
post #68 of 101
I only have 277 hours on mine (HT has been in construction off and on) and it just shut off during a movie one night. It then cycled on and off. I had friends over so didn't check the light.

Now when I try to fire it up it runs for a few minutes (or seconds) and then shuts off with the on light flashing. It then cycles on and off with different fan speeds and sometimes lights the bulb and sometimes not. This sounds like the same problem.

I downloaded the service manual at

http://www.eserviceinfo.com/download.php?fileid=25268

(you have to download WinRAR to use the file)

but was wondering if the power supply part is the one mentioned in this thread?

ETXMM519MBGB

On Panasonic's website it calls it a Power Supply PC Board for $101.98?

thanks for the help
post #69 of 101
1200 Hours on my Panny 700U. My Panny started the drill ON-OFF . Changed the P-module myself and it is working now. Lets see how long it will work .
post #70 of 101
fta: mine just started too: Does this sound like your issue?

Mine does not ever stay on long enough to watch something (at most 2 or 3 minutes, and that's after a long cool down). I will occassionally get a red light, though not all the time, sometimes it does show green. and real rarely it will show the red light blinking as I try to coax it into working. Does this sound like your issue too?

Anyone else have any thoughts?
post #71 of 101
Quote:
Originally Posted by jasallen View Post

fta: mine just started too: Does this sound like your issue?

Mine does not ever stay on long enough to watch something (at most 2 or 3 minutes, and that's after a long cool down). I will occassionally get a red light, though not all the time, sometimes it does show green. and real rarely it will show the red light blinking as I try to coax it into working. Does this sound like your issue too?

Anyone else have any thoughts?

Yeah that's about what mine did. The part is relatively cheap and the repair is pretty easy.
post #72 of 101
I'd like to say thanks for this thread and the link to the service manual.
It helped me diagnose and fix my AE700E myself
Although the Panasonic service charged me about 130 Euro with shipping for the P-Module
Guess I still saved some cash and time this way ...

To me the issue appeared to be tempreture related. At first I could get the PJ to stay on as soon as it heated up. So before ordering the replacement part I tried to re-solder all non-SMD connections, didn't help though.

The PJ was at something around 4700 h runtime when this happend.
Good luck to everyone else coming across this issue.

Raphael
post #73 of 101
But, if they gave you a "TXANP02VJY7 B MODULE / BALLAST UNIT 198.62" for free than your troubles should be soothed. I'd like to say thanks for everyones input.

Jon8Christine, i seem to have the exact issue you have. When it first started happening the red lamp/fan lights were really dimm and kind of flashing, then i unplugged it and it would come on for 5 seconds then power off, sometimes the fan would just sit there and cool down for about 10 seconds. I ordered the P Module/ Power Board. I will post my response. I will also replace the fan while i'm in there. Part is back ordered till first weed in January at Panasonic $150.00.
I'll let you guys know and please post your resolutions, or PM me.

Thanks
post #74 of 101
So, i decided to buy the p supply board from panny 115$, i opened my prjector in about 30 minutes and had the p board back in, and it fired right up.
If any of you are having this issue i would try the p board and if it's not the issue return it and sell your panny for parts, they are going on ebay for around 600 dollars, it's not worth the repair the way current prices are going in the market today. over 4 years, 1600 hours and running strong. Good luck all and feel free to PM me for help.
post #75 of 101
Last thursday my ae700 started cycling on and off, and eventually would not turn on at all. It's about 3 years old and has ~950 hours on the bulb. I phoned Panasonic who told me to take it in to Professional Electronics (their main repair facilility). Brought it in on Monday, and received a call on Thursday saying they had fixed the problem by repairing a couple of capacitors. They also cleaned the fans and did a mechanical realignment of the p-supply. Total cost for the repair was $ 202.00, I'll post how it went when I get my pj home tonight...so far I'm very pleased with the service.
post #76 of 101
Just an update on my repair, The pj seems to be running better than ever. I just wish the repair shop would've upgraded my 1.3 firmware. They tell me that it's not necessary, they don't seem to be aware of 1.7-and that the hdmi flashes I was seeing were also due to the powersupply. When my 35' hdmi cable from Blue Jeans arrives I'l be able to settle that question....
post #77 of 101
Hi guys.

I have verified that it is the MC201 (in the servicemanual it´s called MC202) that is the problem. Anybody of you who knows what kind of component this is. I can read MR20T14D28M on the side but I cant find it online. How do I know that this is whats wrong?.
Well I measured the voltage from Pin 11 in A6 and that was only 1.8V when it should be 3,4V. I then took out an icecube from the fridge and cooled the MR201 (MR202) down. Voila!!!!!!! 3.4 Volts and the Power On lamp is lighting up. This stay lit as long as I keep the icecube on the MR201 (MR202). When I remove the icecube i takes about a minute or two before the Power ON lamp goes out.
So my P-module is whats wrong but wouldnt it be nice to get ahold of that component and fix the p-module are selfs?

If any of you know where this component could bee atained from please send me a PM.

P_tre

Please forgive my english since I am Swedish.
post #78 of 101
Its great that you discovered this, but I have no idea what that part is. If we can find out what it is, it would probably make picking up dead units secondhand very worthwhile. Also note that there may be more than one of these or something similar? In my case, after the p-module replacement, it worked fine for 1-3 days, then failed again until they replaced both the p-module and ballast at the same time.
post #79 of 101
Resistor networks ?? www.vishay.com
post #80 of 101
not sure if anyone still has there ae700 but mine just stopped working. i turned it on the picture came on for 10 seconds then the whole pj went dead. no standby light or anything. i unplugged it waited a day and tried again. still no standby light. then last night i try again. no standby light , but this time i pushed the power on button anyway. the standby light went orange, the fan started softly, but no picture. then it went back to being completely dead, no lights or anything. i have downloaded the service manual but am not sure if it's the power supply or balast or something completely different. maybe an internal fuse. i given the cost of fixing it now could be the cost of a second hand one, (were there any , they seem to have dryed up to) i dont want to spend all this money and still have a non working pj. has anyone else had issues similar to mine?
post #81 of 101
Mine is still sitting un-fixed..It was diagnosed by an authorized Panny service Center which was only a few miles from my House, but I just checked and they are no longer on the Panasonic website as an authorized place anymore.

Chances are they just took my $100.00, as they diagnosed it as the Lamp being faulty, but unless they had another Lamp on hand to actually verify, (which something tells me they didnt) it was probably mis-diagnosed.

I dont feel like farting around with it and spending money to experiment as to the exact problem, and spending $300.00 on a Lamp I amy not even need doesnt thrill me...If anyone needs a parts projector or wants to take a chance, let me know.
post #82 of 101
I've got an extra lamp I could test out on your projector, but I would be shocked if that fixed your problem so you'd just waste money on shipping. If its the p-module and/or ballast, which it probably is, it isn't really worth the expense of fixing, because your blue polarizer will die soon thereafter This projector model is disposable in my opinion, sad to say since I spent so much money on it meanwhile my first generation rear projection HDTV is still kicking butt and looking great after 9 years. I'll buy another projector eventually, but next time I'll try to find one that is a little more durable if it's even possible to determine that... In the meantime I'm still using my repaired, limping, blue polarizer dying, ae700. Trying to get the most out of it before drop kicking into landfill.
post #83 of 101
I might be interested in your spare Lamp..Was looking to get one with high hours from someone, just so I can verify it IS the Lamp before buying a new one.

My 900u has been a great Projector..< I probably shouldnt say that, cause you know what will happen next.
post #84 of 101
Just to add my experience to this thread. I too had a AE700u that started doing the power on/off trick. At first, the standby light would illuminate and then get very dim. The projector would start up but usually wouldn't make it to powering on the light. I got online and found this thread among others and decided to try the repair myself. I had an extended warranty, but a good friend had a very similar problem with the same projector and the warranty company (GE) had his projector in limbo for 6 months. I figured if the $113 for the part fixed the issue it was well worth the gain in time.

I ordered the part from Panasonic and installed it tonight. So far so good. The repair isn't necessarily "hard", but there is a particular order you need to follow to get to the P-module. I didn't download the service manual, I just figured I'd open it up and see what I got. It took about an hour to do everything. As another member mentioned, a magnetic screwdriver is invaluable when doing this. I'll let everyone know if the repair doesn't last, but so far so good.

Guess I'll stick with this projector for a little while longer after all.
post #85 of 101
Quote:
Originally Posted by P_tre View Post

Hi guys.

I have verified that it is the MC201 (in the servicemanual it´s called MC202) that is the problem. Anybody of you who knows what kind of component this is. I can read MR20T14D28M on the side but I cant find it online. How do I know that this is whats wrong?.
Well I measured the voltage from Pin 11 in A6 and that was only 1.8V when it should be 3,4V. I then took out an icecube from the fridge and cooled the MR201 (MR202) down. Voila!!!!!!! 3.4 Volts and the Power On lamp is lighting up. This stay lit as long as I keep the icecube on the MR201 (MR202). When I remove the icecube i takes about a minute or two before the Power ON lamp goes out.
So my P-module is whats wrong but wouldnt it be nice to get ahold of that component and fix the p-module are selfs?

If any of you know where this component could bee atained from please send me a PM.

P_tre

Please forgive my english since I am Swedish.

Many thanks P_tre, using your information I made an artificial heatsink by supergluing a pound coin to one side of MR201 and 50 pence coin to the other side (I am sure any heavy coins wound be suitable). Projector has been running fine ever since. As a disclaimer I am not suggesting this as a permanent fix (there may even be a risk of fire) but it will keep my projector running until I can get a new board here in the UK. If anyone knows of a supplier of powerboards that will ship to the UK I would be most thankful.
post #86 of 101
I also fixed my PT-AE700U a couple weeks ago. I bought the power supply module directly from Panasonic and installed it myself without the aid of the manual. It has been working fine ever since.
post #87 of 101
Quote:
Originally Posted by P_tre View Post

Hi guys.

I have verified that it is the MC201 (in the servicemanual it´s called MC202) that is the problem. Anybody of you who knows what kind of component this is. I can read MR20T14D28M on the side but I cant find it online. How do I know that this is whats wrong?.
Well I measured the voltage from Pin 11 in A6 and that was only 1.8V when it should be 3,4V. I then took out an icecube from the fridge and cooled the MR201 (MR202) down. Voila!!!!!!! 3.4 Volts and the Power On lamp is lighting up. This stay lit as long as I keep the icecube on the MR201 (MR202). When I remove the icecube i takes about a minute or two before the Power ON lamp goes out.
So my P-module is whats wrong but wouldnt it be nice to get ahold of that component and fix the p-module are selfs?

If any of you know where this component could bee atained from please send me a PM.

P_tre

Please forgive my english since I am Swedish.

Did anyone ever find where to get the MR20T1 chip?

It is definitely the problem. My projector does the power on/off until you blast that chip with cold air from an upside down dust off can. Then it works fine.

I would like to fix the board with a new chip.

For those of you who ordered the whole new board does the new board use a different chip in place of the MR20T1.

Here is a pic of the chip

Thanks.
post #88 of 101
Thanks very much guys, for all of this useful information. I've got a PT-AE700E that's almost 6 years old, and 6900 hours on it, so the warranty is well expired.

It's showing the symptoms described above, and the ice cube test showed it's the P-Module needs replacing. This saves me having to give it away to a service centre, both in cost and lost time.

Thanks to all again. SC
post #89 of 101
Figured I'd add to this thread rather than start a new one.

Not sure if this is the exact issue others have experienced, but would appreciate any input.

I purchased a PT-AE700U new in '05 and have around 1,800 hours on the original lamp, all at the lower lamp output setting.

I have had no issues with the projector until last weekend, when the following started to occur out of the blue.

When I hit the main power switch on the back of the unit, the power status light goes straight to green (it should go to red for standby). The fan will then cycle on and off as the power light cycles from green to flashing orange. Sometimes the green light will flicker and dim. Rarely, an image will appear briefly on the screen (the input indicator at the top right of the screen). I can also hear a mechanical clicking as the fan cycles on and off - probably the iris. The projector will cycle through these issues and will not fire up, so I kill the main power switch on the back of the unit.

Has anyone experienced this issue and determined a root cause and fix?

I have not been able to narrow down root cause and a fix based on the research I've done so far. Seems like it could be anything from an iris malfunction, to a power supply board or ballast issue, to a lamp issue.

So, I'm trying to get a feel for root cause and fix options before I decide how to proceed. Given that a new $400 lamp is in the near future anyway, if this issue is a non-lamp related and requires a significant repair (say $300-400 or more), one has to consider the value of putting $700-800 or more into a 6 year old model vs. biting the bullet and getting a new projector with better performance at the same or lower cost vs. the original cost of the PT-AE700U. However, it is very disappointing that the PT-AE700U has only lasted 5.5 years and 1,800 hours.
post #90 of 101
I have the exact problem adam2434. Mine also started last night without any warning. You can rule out the lamp, I replaced it without any change. From all the reading I did until 3 this morning (I was very depressed) the chances that it's the P module seems to be very good. I'm currently awaiting replies from inquiries I made for spares. I live in South-Africa so this might be a challenge, but I will post back when I replaced the module.
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