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Official Sanyo HT32744/HT30744 thread - Page 87

post #2581 of 2894
Actually the problem with my 32" was it turned Green.. very green... then, I had a 30" HD set in our bedroom, that one was still in the 90 day return warranty, I had just noticed in the 4:3 mode the bowing to the middle on each side of the picture that I could not tweek out... .the PQ looked great, but I just could not get use to the bowing in the SD mode, so, it went back.... 1 week before the 90 days was up, good thing because I still have a bout $600 on my gift card from the return of the 32" it's going to last me years for the amount of stuff I buy at WM!

I actually replaced my 32" with a Sony 40" lcd, and I think I am going to replace the one in the bedroom with a 32" LCD I don't play games with them mostly just watch OTA HD and DVD's
post #2582 of 2894
I picked up one of these sets (the HT32744) at Value City about 10 months ago. It was a pretty random find and at the time, I wasn't even looking for an HDTV, but the price was extremely reasonable (under $300). It has since become my main television, as I just don't have the cash right now to shell out for a nicer, more expensive HDTV.

Well, I've been having problems. The set, at this point is pretty much useless. Here's been my issue:

About two weeks ago, I noticed that colors were slightly shifting...it was very subtle at first and didn't even happen all of the time. I changed the scan velocity to "OFF" and that seemed to do the trick. I moved a little over a week ago and just began having problems with the set the past few days.

First thing that started to happen is that everything would kind of turn green, which led me to believe that the red channel was crapping out. Turning off the set for a bit and even unplugging it and turning it back on would usually get it back to normal and it was isolated, so I didn't freak out. The past two or three days, though, have been horrible.

I can't watch the set for more than 15-20 minutes without it turning the green color and sometimes, if I wait it out, it will correct itself. The new issue is even better...after turning green, sometimes the picture will then start blurring and get very dark to the point where you can't see anything.

I've noticed a few things fix the problem - 1) Turning the set off and turning it back on, 2) time and 3) slightly smacking the set will set the colors normal SOMETIMES. Sometimes, however, turning it off and turning it back on does nothing and smacking it just gets me upset.

Does anyone know how much a professional might charge me to take a look at it and possibly repair it? I know nothing about TV repair or how much it would cost, but my hunch is that it'll cost me more to fix than I paid for it.

I can't afford to buy a new set right now and I'm so upset that I've pretty much written it off, so I'm not against trying to repair it myself, but given my repair knowledge level, that might just be pointless.
post #2583 of 2894
Read the last four or five pages in this thread. People have isolated it down to one solder spot coming loose (for the green problem). It's worth calling Sanyo as well - worst case is they say tough luck, but they might set you up with someone to fix it as well.
post #2584 of 2894
Nickbrutal

I have that same problem that you have, it sounds like.

(Shink, thanks for the advice on the solder problem!)

Here is what I have found for a "non solder" fix, at least for me.

After the TV is warmed up, the problem seems to go away

I have gone weeks and even months without the problem re-occuring. I even took the back of my TV off, looking for a screw or some other loose connection.

When it happens, I can gently (or maybe not so gently) rock the TV back and forth and it will suddenly go back to a perfect picture.

It seems that it might take 2 or 3 times, and the picture will stay perfect for the rest of my TV session, even if it all day saturday.

I have also found that a frozen picture with a lot of BRIGHT WHITE seems to bring the picture back without any rocking.

I really like this tv, and as most of my TV is still SD, this TV is perfect, and DVD's look great too.

I am hoping that the TV will last for a year or two more, then I will get a LCD or Plasma TV.

Also, that gives the industry 1-2 more years to perfect LCD/Plasma technology (I really want to see a 55 inch LED backlit LCD display!!!!).

Also, that gives Dish Network a year or two to get their stuff together fon DVR HD TV!

Hope some of my "non surgical" methods help you out.
post #2585 of 2894
I had the 32" that turned in to the big green blob, finally it would only stay about 15 minutes before it shifted to mostly green...

The folks at Sanyo seem to know that there is a "Big Problem" with the Green, perhpas if you call them, be firm that you know that there is a problem, tell them you know that Walmart stopped selling the unit because of the issues,perhpas they will help..

I took back my 30" unit also, I just don't like how they handled the issue for the 32" and I wasn't about to fight nd deal with them on the 30...

But, I'd call Sanyo, be firm, tell them that you know that they know that the tv is defective and you want it fixed...

SEe what they say.
post #2586 of 2894
I was the one who took it locally to be repaired, I'm pretty sure Sanyo allowed it because there was a local service center. IC711 was the IC resoldered, the red drive on the picture tube drive board. Is this the actual problem? I dunno. The symptoms seem consistant with that of a bad solder joint, that being rocking or turning the set on and off fixing it. The IC probably heats up and the thermal cycling of the on and off cycles brings the problem to the surface. I had this done back in January, I've now had the set running longer since the repair than I did before the problem started appearing, and it has not gone green since. If you take it in, alerting them to this would probably save a bit of work trying to find it.
post #2587 of 2894
Quote:
Originally Posted by yrly View Post

I was the one who took it locally to be repaired, I'm pretty sure Sanyo allowed it because there was a local service center. IC711 was the IC resoldered, the red drive on the picture tube drive board. Is this the actual problem? I dunno. The symptoms seem consistant with that of a bad solder joint, that being rocking or turning the set on and off fixing it. The IC probably heats up and the thermal cycling of the on and off cycles brings the problem to the surface. I had this done back in January, I've now had the set running longer since the repair than I did before the problem started appearing, and it has not gone green since. If you take it in, alerting them to this would probably save a bit of work trying to find it.

Are you sure the technician didn't do anything else? I had my friend resolder IC711 (he is an Electrical Engineer) and the green problem is still happening for me.
post #2588 of 2894
Well, I called Sanyo as suggested and although the wait was long, they were kind of helpful. They said my TV was still under warranty and that I could return it to a Wal-Mart, let them know the problem, and they'd be able to call Sanyo with the serial, and then swap the model out for the one that replaced it or give me a store credit for the price that the TV was last sold.

However, she told me the model that replaced the HT32744 was the HT32546. As far as I can tell, that's a standard definition TV which doesn't really help me out, as I purchased the set specifically because it was HD.

Could the rep I spoke to have been mistaken about this replacement model? Worse comes to worse, I can a reasonable amount of store credit for the television and just pay the difference for a new, better model. I just want this exchange to be as easy as possible.

EDIT: Anyone know anything about the DP32746 that Wal-Mart sells versus my currenty model?
post #2589 of 2894
First off, I"m not sure if you said if you were the original purchaser of the TV or not, (one person said they had bought one art a greatly reduced price) and that may be an issue in trying to return it to Walmart without a receipt!

Walmart has a 90 day return for cash, then it's store credit only (that is what happend to me)..

There is no 32" replacement at Walmart for that TV, I was in the same boat as you when I returned my 32" I still have $500 + in store credit on the card..

If you do not have a receipt, I'd just tell them that the receipt is not an issue and that Sharp told you to return it to them for a replacement (which they do not have) or credit.. I think the price I paid for mine was $577.00 and I think that was the last sale price they had.
Good luck, keep us posted
post #2590 of 2894
I'm in a weird position, as the TV works SOMETIMES and is also, at the moment, my only TV. Price is an issue and I don't know what kind of position I'm in financially to upgrade, but I think that's my plan. I might wait a few weeks before I attempt the return, get the credit, and purchase another display.
post #2591 of 2894
WEll, if it dies completely (which our did, everything eventually stayed green).. your out of luck after the 1 year warranty from Sanyo... so, if you want to gamble with it.. that's up to you but you have to ask yourself.... Do you Feel Lucky? With the money you get back from the 32 you can purchase the 30" for less, and you would start over with a brand new TV and a brand new warrranty.. watch the set for up t0 90 days and see if it turns again, if so, just take it back to Wallymart for another refund!

I didn't feel lucky, and after this tread, not many people do!

Good Luck..
post #2592 of 2894
And also note that if you get stuck with a gift card, you can usually sell them on eBay for 90-95% of their value. Helpful if you don't normally shop at Wal Mart.
post #2593 of 2894
I'm going on 2 years with my tv 32" (it is my primary one so it sees lots of use) and I have never had a problem with it....
post #2594 of 2894
Amigo-2K..........I have had the HT32644 set for a year now, and we keep it on aprox. 20 hours a day.......The set has run flawless and has a "super" picture.........I did have the green blob located in the upper right quarter of the picture , due to have put a small stereo set on top of the set.....The total fix was to turn the set off and back on one time........I have had excellent use of the set, and no problems........I guess that we lucked out, and got good sets......I wonder how many "good" sets are out there ??? Dplugs39
post #2595 of 2894
All the tech did was resolder the chip. I suppose depending on what happened the IC itself could go bad which is a possibility. Back when the RCA TVs had the bad solder joints in the tuners I was informed that if you repeatedly turned the set on and off or unplugged it to temporarily resolve the problem is would eventually ruin one of the ICs, I eventually had that TV fixed after pestering RCA until they picked up the bill. The basic scenario was this. I called Sanyo, who said I could exchange the set (it was under warrany at the time), or I could have the service center service it. I didn't feel like lugging it in myself and probably would have been offered store credit for the $275 or so that I paid for the TV to begin with, so since they thought it was fixable I called their repair shop, which is a large service center in the area that covers many brands. I had them take it in for service. Tech didn't find anything immediately wrong in fact if I recall he had to leave it on for two days to get the problem to replicate, so I called him explaining the problem, how rocking the TV or tapping it at the top would cause the reds to come back. He then believed that it was a solder problem somewhere. He said he combed the set over for bad solder joints and didn't notice anything immediately out of place but when through it again and then resoldered the IC. After doing so the TV then worked. It has worked fine ever since. The problem originates after all the other stages (which is why it appears on all inputs). But given how these things are wave bath soldered if the IC can be poorly soldered I'd venture to say almost anything on that board probably might be as well, perhaps the solder temp wasn't hot enough. I know at this point in the game, out of warranty, if I ran into color loss problems I'd simply redo the entire sections of the picture tube drives for whatever color problems there might be. So far its been the red, but we're only about two years on here, who's to say other problems may not develop down the road, only time will tell.
post #2596 of 2894
Help, Our HT327444 needs help. Initially I thought I was only viewing shades of Green and light blue. This started about a month ago. We have had the set about a year.

I think we have two options: repair or replace.

I would like to make a simple adjustment. After reviewing the various forums and threads I see that the television and video world has passed me by. I think the picture tube still usees red, green and blue guns to develop the picture. However, as I read thru the different postings I can see that all else has changed.

Our symptoms seem to change as we change channels and Tv set inputs. The TV picture is derived from a DirectTV H20 receiver using an HDMI cable to connect them. In addition I connect a camcorder using S-video video and a Sylvania DVD with composite video. We do not have OTA where we live. We have a good B/W pix by adjusting color to "0" on the manual adjust.

I would like to repair it if I can make a register adjustment per the manual I donwloaded, but that manual is for the 30" set. .... has anyone used this manual info successfully??

Maybe I can adjust the drive/screen levels (....perhaps a register setting ) to correct our troubles?

Can I turn off each gun to see if any of the three guns have failed?

Last option is to give the set back to Walmart and go for the exchange. But I really like the set except for color troubles.

Thanks
post #2597 of 2894
Quote:
Originally Posted by OKGramps View Post

Help, Our HT327444 needs help. Initially I thought I was only viewing shades of Green and light blue. This started about a month ago. We have had the set about a year.

I think we have two options: repair or replace.

I would like to make a simple adjustment. After reviewing the various forums and threads I see that the television and video world has passed me by. I think the picture tube still usees red, green and blue guns to develop the picture. However, as I read thru the different postings I can see that all else has changed.

Our symptoms seem to change as we change channels and Tv set inputs. The TV picture is derived from a DirectTV H20 receiver using an HDMI cable to connect them. In addition I connect a camcorder using S-video video and a Sylvania DVD with composite video. We do not have OTA where we live. We have a good B/W pix by adjusting color to "0" on the manual adjust.

I would like to repair it if I can make a register adjustment per the manual I donwloaded, but that manual is for the 30" set. .... has anyone used this manual info successfully??

Maybe I can adjust the drive/screen levels (....perhaps a register setting ) to correct our troubles?

Can I turn off each gun to see if any of the three guns have failed?

Last option is to give the set back to Walmart and go for the exchange. But I really like the set except for color troubles.

Thanks

My TV had the same problem. Called Sanyo up, they said a tech will come by my house. He came and all he did was replace the 'digital PCI card' in the back of the TV. Now it's back to normal excluding the annoying overscan and the tilted screen issues.
post #2598 of 2894
I took my TV back to Wallyworld 1 week or so before the 1 yr exchange warranty was up on my TV, but Sanyo had no repair options available it was an exchange oppertunity with a non HDTV version or store credit.. do you guys know how long it takes to use up $633 in store credit at Wallyworld.. well I'll be going there for years.. but, I took the tv back and replaced it with a Visio 32" from costco ..the now are $699 and it is great....
post #2599 of 2894
You can sell your store credit on eBay.
post #2600 of 2894
Hi,

I'm missing about a half inch of picture on the right side of the screen from HD broadcasts off my cable box and from XBox 360 games. How should I adjust my settings to remedy this problem?

Thanks.
post #2601 of 2894
Just started having this disappearing red color issue and wondered if the others like "yrly" had this problem with both the HD and SD tuners.Makes no difference if I use cable box SD or OTA HD with my silver Surfer antennae,the green (or more accurately,lack of red) issue looks the same and is at least for now curable by turning set on & off.I got extended warranty and would like to get an idea of what needs replaced outright,not just temporarily "Fixed". Are we talking shared picture tube or what?I don't know much about dual tuner tv sets. Thanks
PS I'd be curious to get an actual count on number of people who had this problem.Seems to me the phrase "Manufacturing Defect" certainly applies.
post #2602 of 2894
There is only one picture tube. I think it has been confidently nailed down in this thread that one of the solder point is the problem. Do a quick search on this thread for solder and you'll find it.
post #2603 of 2894
Quote:
Originally Posted by davidki View Post

First off, I"m not sure if you said if you were the original purchaser of the TV or not, (one person said they had bought one art a greatly reduced price) and that may be an issue in trying to return it to Walmart without a receipt!

Walmart has a 90 day return for cash, then it's store credit only (that is what happend to me)..

There is no 32" replacement at Walmart for that TV, I was in the same boat as you when I returned my 32" I still have $500 + in store credit on the card..

If you do not have a receipt, I'd just tell them that the receipt is not an issue and that Sharp told you to return it to them for a replacement (which they do not have) or credit.. I think the price I paid for mine was $577.00 and I think that was the last sale price they had.
Good luck, keep us posted

Mine died this week. It started popping and clicking. Sanyo refused to repair it. They said I would have to take it back to walmart. Luckily for me my wife saves everything. Manuals, receipts etc... I took it back to the store. They gave a lot of hassle and tried to make me play the you must get it repaired by Sanyo game. They then called Sanyo and got auth to return it. During the process I heard a CSM tell the person doing the retun not to do this anymore and to leave it to the burden of the customer to get fixed. Amazing... I was then shocked when they gave me cash instead of making me take in-store credit. Believe me I took the cash and ran. I am disappointed because the TV was a good TV before it started having problem. I paid less then $500.00 for it so now I have to try to find something comparable and I doubt that will happen today for that price... Anyone have any suggestions on a replacement? I am going to add some cash to it... For say $700.00 thats between 27 and 32 inches? Thanks,

JT
post #2604 of 2894
I had the 32" TV and the green problem. It wasn't that bad (happened one a week for an hr or so), then it got a lot worse being proper colour was unusual. I called Sanyo and they said that with the serial #, it was still in warranty until Friday and to take it to Walmart. I couldn't find my receipt and only my credit card statement with the TV on it from May 05. I called Walmart and they said that the warranty is for 1 year and not longer. I called Sanyo and they said to go with the TV and if they won't exchange it for a similar model to get them to call Sanyo.
I went down and the manager gave me a bit of hassle, then said to get the exchange. THe only HDTV CRT Sanyo was the 30" widescreen for $480 (I paid $680). I didn't want this so they gave me store credit so I could purchase the 32" LCD Sanyo from them.
All in all I got the TV that I wanted 1-1/2 years ago for a lot cheaper than I would have thought.
Everything looks great on this replacement, great colours and contrast and the computer is now no hassle or bad overscan.
post #2605 of 2894
Quote:
Originally Posted by Shink View Post

There is only one picture tube. I think it has been confidently nailed down in this thread that one of the solder point is the problem. Do a quick search on this thread for solder and you'll find it.

I did read all thru & while it seems certain a good number have had this flaw only YRLY had it serviced by an authorized repair center & 1 other person MAYBE had it fixed by a friend following YRLY's advice ,but was not at all certain.While the solder issue seems likely,it's not at all unusual for the picture tube to expire shortly after the manufacture's warranty expires.(Had it happen on the first TV I ever bought and that's why I always fork over for the extended warranty).

So,who other than YRLY has had this repaired?

This sucker is heavy and I'm not about to drag it halfway across the state more than once.
Thanks
post #2606 of 2894
Quote:
Originally Posted by qwerty711 View Post

I did read all thru & while it seems certain a good number have had this flaw only YRLY had it serviced by an authorized repair center & 1 other person MAYBE had it fixed by a friend following YRLY's advice ,but was not at all certain.While the solder issue seems likely,it's not at all unusual for the picture tube to expire shortly after the manufacture's warranty expires.(Had it happen on the first TV I ever bought and that's why I always fork over for the extended warranty).

So,who other than YRLY has had this repaired?

This sucker is heavy and I'm not about to drag it halfway across the state more than once.
Thanks


I'd been having the same problem so I wanted to give it a look myself. I opened up the TV (took the back off) and went looking for the solder spot yrly was talking about. To my dismay the chip was soldered on perfectly and that obviously wasn't the problem. I examined all 3 chips and found nothing. The chips did have some white powdery residue on them so I wiped that off w/ my fingers and gave it a little air dusting and put the cover back on. To my delight I haven't had the problem reoccur. I did this on Tuesday and its almost a week w/ no red color loss.

I am an electrical engineer but that doesn't mean I know anything about TVs. I can read shematics and from the service manual (found on page 1 or 2 of this thread) I found the schematic of the video board and located the chip on the end of the TV tube. The chip is marked IC711 on the board connected to the tube just like the schematic on the service manual. If I'm not mistaken each chip has 8 pins so just make sure each chips solder points look good and if not then resolder or take to someone who'll resolder. If the points are good look for dirt or dust, clean it off and put the cover back on the back. All in all its costs nothing and takes about 15 minutes to do. The only problem is the thing is heavy and taking off your stand and putting it on the floor may take 2 people.
post #2607 of 2894
Quote:
Originally Posted by rebeljt View Post

Mine died this week. It started popping and clicking. Sanyo refused to repair it. They said I would have to take it back to walmart. Luckily for me my wife saves everything. Manuals, receipts etc... I took it back to the store. They gave a lot of hassle and tried to make me play the you must get it repaired by Sanyo game. They then called Sanyo and got auth to return it. During the process I heard a CSM tell the person doing the retun not to do this anymore and to leave it to the burden of the customer to get fixed. Amazing... I was then shocked when they gave me cash instead of making me take in-store credit. Believe me I took the cash and ran. I am disappointed because the TV was a good TV before it started having problem. I paid less then $500.00 for it so now I have to try to find something comparable and I doubt that will happen today for that price... Anyone have any suggestions on a replacement? I am going to add some cash to it... For say $700.00 thats between 27 and 32 inches? Thanks,

JT

I saw a boxed RCA HD27F754T at Walmart this weekend for under $400.00 this weekend. It is a 27" 4:3 set. I did a little research and the only drawback I saw was the lack of an HDMI imput.

RCA HD27F754T
post #2608 of 2894
Hi all,

First of all, nice thread - those TVs are worth it. This post regards the 32" version. To sum up quite a few posts here: the red/green problem, right? How about a horizontal picture smearing? Jumping right next to the TV or kicking/banging it upside the head which corrects the problem (temporarily)? Clearly it's physical/mechanical and I'm not sure about the posted here "soldering problem". Anyone noticed that rocking the set back-and-forth a few times corrects the issues as well? Here is what I think - check the connectors between the boards (3 of them) - the white ones with several bent at 90 deg. steel-sheet "pins". Next, the ground cable to the CRT. I noticed those parts get physically stressed the most, and my TV started to give me problems after I moved out and in. So, after taking the cover off do the same as before - rock the set back-and-forth and see what gets stressed. I reconnected everything (almost... see the P.S.) and now it's fine. For those who can't fire it up at all or especially when the TV turns off after 1.5 or 3 s past "ON" - try the "SCREEN" focusing knob on the transformer - the TV has a safety "device" which turns the TV off if the voltage is too low and turning that knob (well, one way) basically does just that. BTW, I had to drill 2 holes in the back cover to have access to the 2 focusing knobs. Oh, remember that the voltage in the TV is way higher than sufficient to kill you , so be careful or don't "F" with it if you don't know what you're doing, especially when it's powered up (e.g. for focusing).
Overall, I think the problem here is the ****** back cover which is way too flexible and upon movement instead of damping the stress it transports it to the brain components. It seems like those are common trouble components. Additionally, anyone noticed that Mexico tried to save $ on the inside cables? Yeah, some of them are too short and cause the abovementioned problems on movement. The TV is still great. For the price that is. I've been running mine for 2.5 years now, HD programs for over 6 months (HD IS amazing...).

I hope this helps.

P.S. Can anyone with the diagrams help and let me know the exact location of the degaussing coil connector on the board (which board, symbol, etc.)? Forgot to mark that one before dissassembly. Yeah, stupid me and now no degaussing. Thanks in advance.

Zealot
post #2609 of 2894
Hi everyone,

I bought the HT30744 at Walmart this past Friday in downtown Toronto, and it's great! It picks up several HD channels even though my apartment faces north and my view's blocked by a giant building.

Quick Q to the experts about the set--the Sanyo website says that scan velocity modulation (SVM) is a feature of this TV. That's probably why I'm seeing ghosting via the s-video input. There's no setting in the user menu to change scan velocity modulation--nothing even similar. I've checked the service menu and can't find anything with an SVM in the code. Has anyone been able to find a way to disable SVM?

Thanks for your expert info!
post #2610 of 2894
I have been buying component cables for my systems lately and my xbox looks beautiful on this tv, but my ps2 looks god awful. Its looks very pixalated and bad ghosting. Is this a problem many people have been having with the ps2?
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