Official Sanyo HT32744/HT30744 thread - Page 97 - AVS Forum | Home Theater Discussions And Reviews
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post #2881 of 2897 Old 02-05-2012, 10:05 PM
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Mine just got the green tint as well a couple weeks ago. I don't think they are worth fixing anymore - I'm just waiting for electronic recycling day to dump mine off.
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post #2882 of 2897 Old 02-05-2012, 11:13 PM
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Yum.. I am eating my words. It is tasty!

This leads to a question. How do I turn-off the 3:2 pull down feature if my DVD player is doing the 3:2 pulling down? Would that redundancy casue problems? May be Sanyo has automatic sensing capability to turn on/off this 3:2 pull down feature.[img]http://www.******************/zhaojh.jpg[/img][img]http://www.******************/zhaoht.jpg[/img][img]http://www.******************/zhaogd.jpg[/img]
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post #2883 of 2897 Old 02-13-2012, 04:35 PM
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I have decided to open up this tv and play with it before I decide to get rid of it.. I have already unplugged it. How long should I wait for it to discharge before taking the back off? Also if anyone can tell me what to look for as far as locating common problems I'd appreciate it.
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post #2884 of 2897 Old 03-08-2012, 04:54 PM
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Hi,

We recently bought this TV from a friend who is moving. It has great picture quality but when we plugged in our wii console we cannot figure out how to turn on the panorama/wide view (it is stuck in a standard format and not stretching the entire width of the screen)

We bought a universal remote and programmed it to our TV. While this allows us to navigate, change channels and volume, etc. we still cannot figure out how to enable the widescreen panorama while our wii console is in use.

One site suggested the remote that came with has a button that allows this. Also to use wii composite cables.

Does anyone else have any suggestions?

Thanks
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post #2885 of 2897 Old 03-08-2012, 05:24 PM
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Use Wii Component cables and you can set the output of the Wii to 16:9, which will fill your entire screen. As far as stretching an existing image, the original remote has a button called "Pix Shape" that cycles through the various stretch & zoom modes.
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post #2886 of 2897 Old 01-19-2013, 09:37 PM
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Hey everyone,new to the forums.I have the sanyo HT30744 that was a freebie and the uhf vhf catv connector where cable tv is hooked up has been broken off of the board (see pic) . Is it possible to use the digital antenna in where cable tv is now digital?
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post #2887 of 2897 Old 08-24-2013, 06:37 PM
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It's a bittersweet day. Just dropped off the last CRT TV in the house at Best Buy to be recycled. The Sanyo HT30744 had served admirably for the past 9 years, originally as the primary living room set, and then as a bedroom set. The picture would occasionally go a bit green, but wedging something under the left side of the chassis would usually fix the problem. If not, a good smack on the side would always set it right. Not a bad lifespan for an inexpensive WalMart TV!

Work was disposing of a 1080p 50" Panasonic plasma, so that's the replacement bedroom TV. (Yes, it's ridiculous to have a TV that large at the foot of the bed, but the price was right, and I couldn't resist.)
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post #2888 of 2897 Old 08-25-2013, 11:09 AM
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Me Too! Just unloaded mine (what a beast) a couple of weeks ago. What a fine trooper it was (I had to put some folded up paper under the front right). People would laugh when they saw that, but no one could argue it was the best picture. Yeah it was a sad day.
New TV is a Samsung 55" LED (UN55F7050AFXZA) from BJ's.
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post #2889 of 2897 Old 08-30-2013, 12:49 AM
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My HT32744 is still going strong!
It went from the family room to the garage several years ago.
Every once in awhile it goes green, but a smack or two on the top fixes that.
Friends can't believe the awesome picture during sports from a rooftop antenna.
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post #2890 of 2897 Old 10-12-2013, 02:48 PM
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I bought a sanyo HD 30 INCH set in 2006 and after 2 months the picture tube went out on it . I called sanyo they told me they stock no parts to repair my set . So I had to haul it back to walmart for a refund . They where out of the tube hd sets by sanyo and wanted to give me a store credit . I tiold them I wanted a full refund or no deal . I never bought a television from walmart again . The last one I bought new was a sony DLP from sears that warranty for 3 years covered the bulb too . They sent me out a replacement ever year when it went out too . the price for the warranty was worth every penny . So You guys may as well got a good set but I never bought a sanyo set again . The set had a good picture and sound but they wont come out and fix it if it breaks on you .
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post #2891 of 2897 Old 12-10-2013, 02:09 PM
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My 27" (4:3) is still holding up, though I wish I picked up the 28" (widescreen w HDMI) while it was still available.

"I knew you'd say that"...*BLAM!*
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post #2892 of 2897 Old 01-21-2014, 07:05 AM
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Does anyone know how much the HT30744 weighs?

Thanks
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post #2893 of 2897 Old 01-21-2014, 09:36 AM
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Figure around 125 lbs.



If you can’t explain it simply, you don’t understand it well enough – Albert Einstein
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post #2894 of 2897 Old 01-30-2014, 08:05 AM
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Quote:
Originally Posted by Ratman View Post

Figure around 125 lbs.

Thanks for the information.

Jonathan
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post #2895 of 2897 Old 08-06-2016, 07:58 AM
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My Sanyo CRT is starting to show her age (temporal discoloration in light areas of picture); looking to pick up a shiny new 4K flat panel on this upcoming black Friday. But keeping this one 'til she gives up the ghost.

"I knew you'd say that"...*BLAM!*
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post #2896 of 2897 Old 07-12-2017, 12:52 PM
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Still alive!

I'm sitting here typing, watching IDHD (I know...slow day. Slow life, actually) I have a Sanyo HT28745, the mystery set that WalMart sold only a short while in mid-2005. I paid $470 for mine, which was the demo, so it had been on for weeks. What I remember most about that purchase is my back being out for three weeks after I got it up to my condo.

I have had the "green" problem, and the "floating sync bars" problems. All were cured by removing the main board and carefully resoldering all pins to the video board socket. It seems that using a lot of connecting cables on the back flexes the main board, causing bad joints to open.

My set has never failed. It has survived lightning, 100% humidity for a weekend after Matthew hit last October, and it still meets specs.

To this day, it produces the most natural color picture I have ever seen. I should point out that I was in TV engineering for 40+ years, and designed and built over 15 complete TV stations. So, I have seen a few good color pictures...and I know what to look for.

In 2008, I found service instructions for a similar set, and decided to touch up the factory rom settings. Mine, like most, had a slight tilt. I did not touch the yoke, which is the only way to correct the tilt. I would rather keep the perfect convergence. Every other size and linearity and registration setting was near-perfect, and now they are.

The horizontal linearity on any CRT with a deflection angle of over 90 degrees is going to suffer.
Think about a car headlight trying to illuminate a sign on the opposite side of a freeway and you'll get what I mean. I did achieve the necessary reduction of factory overscan needed to read sports graphics. I also got the gamma and grayscale exactly as it should be, based on the characteristics of P22 phosphor. This is VERY important when watching classic movies on TCM or wherever.

I was again fortunate. Like the older sets discussed here, the 28745 has a velocity modulator. It works. The later sets, especially the HT30746 omitted this feature. It makes a HUGE difference in perceived clarity, especially in low lights, because it pre-compensates for discrepancies in the CRT itself. The later sets merely had hi-frequency boost (sharpness) which helps, but does nothing but add noise to low lights...and moire to tweed.

Except for complete cleaning every three years, my set has not been touched since Spring of 2008. That's pushing 50,000 hours of use now. The tube tracking and warmup are as-new. It may die tomorrow, but so might I. At less than one cent an hour, I am well-satisfied.

Of course, "progress" always rears its ridiculous head. My Comcast box and my WDLive both have YPrPb outputs, but that is bound to change. Fortunately, friends and my present wife took my advice and bought the Sanyo. Unfortunately, they wanted HDMI and got the 30746. One failed and sat for 8 years. My (now) wife's has sat in her Tennessee bedroom since 2010, a year before we were married. The friend recently loaded his and brought it 250 miles to me. It was an easy fix: the combo gun driver chip and a few associated diodes and transistors on the CRT board. (Another chopdown: the 28745 and older sets used three gun drivers with greater output and perfect reliability.)

When researching the various models, looking for an old digital tuner with HDMI that might work in the 28745, I was amazed at how many chassis re-designs these sets endured in the 3 years they were made. The first two years were improvements. The last was cheapening. The 30746 has HDMI, but it lacks the VM and preset colorimetry functions of the 28745. By finding and changing a few rom settings in the various sharpness/contour circuits, I have it looking nearly as good as the 28745...

With two notable exceptions. The 28745 used HV limiting and beam current sensing to prevent the CRT damage mentioned so many times above. The 30746 uses the HV limiting, but also clipping in the single-chip CRT driver board. No CRT I have seen has any sign of the damage, but the combination of changes on the 30746 makes the picture slightly less-than-perfect. It also tilts a bit more. But, so do I these days.

When I go to friends and relatives houses, I honestly wonder how they tolerate the solid state screens. (As if they had a choice. The last CRT plant in the world rolled to a stop in 2011.) I've seen more-accurate colorimetry on Polaroid film. I'm always glad to get home to my Sanyo.

God-willing, it will outlast me.

If anyone has a 28745 with the HDMI input, I'd appreciate you letting me know before you trash it.

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post #2897 of 2897 Old 07-12-2017, 02:15 PM
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Quote:
Originally Posted by CRTorNothing View Post
I'm sitting here typing, watching IDHD (I know...slow day. Slow life, actually) I have a Sanyo HT28745, the mystery set that WalMart sold only a short while in mid-2005. I paid $470 for mine, which was the demo, so it had been on for weeks. What I remember most about that purchase is my back being out for three weeks after I got it up to my condo.

I have had the "green" problem, and the "floating sync bars" problems. All were cured by removing the main board and carefully resoldering all pins to the video board socket. It seems that using a lot of connecting cables on the back flexes the main board, causing bad joints to open.

My set has never failed. It has survived lightning, 100% humidity for a weekend after Matthew hit last October, and it still meets specs.

To this day, it produces the most natural color picture I have ever seen. I should point out that I was in TV engineering for 40+ years, and designed and built over 15 complete TV stations. So, I have seen a few good color pictures...and I know what to look for.

In 2008, I found service instructions for a similar set, and decided to touch up the factory rom settings. Mine, like most, had a slight tilt. I did not touch the yoke, which is the only way to correct the tilt. I would rather keep the perfect convergence. Every other size and linearity and registration setting was near-perfect, and now they are.

The horizontal linearity on any CRT with a deflection angle of over 90 degrees is going to suffer.
Think about a car headlight trying to illuminate a sign on the opposite side of a freeway and you'll get what I mean. I did achieve the necessary reduction of factory overscan needed to read sports graphics. I also got the gamma and grayscale exactly as it should be, based on the characteristics of P22 phosphor. This is VERY important when watching classic movies on TCM or wherever.

I was again fortunate. Like the older sets discussed here, the 28745 has a velocity modulator. It works. The later sets, especially the HT30746 omitted this feature. It makes a HUGE difference in perceived clarity, especially in low lights, because it pre-compensates for discrepancies in the CRT itself. The later sets merely had hi-frequency boost (sharpness) which helps, but does nothing but add noise to low lights...and moire to tweed.

Except for complete cleaning every three years, my set has not been touched since Spring of 2008. That's pushing 50,000 hours of use now. The tube tracking and warmup are as-new. It may die tomorrow, but so might I. At less than one cent an hour, I am well-satisfied.

Of course, "progress" always rears its ridiculous head. My Comcast box and my WDLive both have YPrPb outputs, but that is bound to change. Fortunately, friends and my present wife took my advice and bought the Sanyo. Unfortunately, they wanted HDMI and got the 30746. One failed and sat for 8 years. My (now) wife's has sat in her Tennessee bedroom since 2010, a year before we were married. The friend recently loaded his and brought it 250 miles to me. It was an easy fix: the combo gun driver chip and a few associated diodes and transistors on the CRT board. (Another chopdown: the 28745 and older sets used three gun drivers with greater output and perfect reliability.)

When researching the various models, looking for an old digital tuner with HDMI that might work in the 28745, I was amazed at how many chassis re-designs these sets endured in the 3 years they were made. The first two years were improvements. The last was cheapening. The 30746 has HDMI, but it lacks the VM and preset colorimetry functions of the 28745. By finding and changing a few rom settings in the various sharpness/contour circuits, I have it looking nearly as good as the 28745...

With two notable exceptions. The 28745 used HV limiting and beam current sensing to prevent the CRT damage mentioned so many times above. The 30746 uses the HV limiting, but also clipping in the single-chip CRT driver board. No CRT I have seen has any sign of the damage, but the combination of changes on the 30746 makes the picture slightly less-than-perfect. It also tilts a bit more. But, so do I these days.

When I go to friends and relatives houses, I honestly wonder how they tolerate the solid state screens. (As if they had a choice. The last CRT plant in the world rolled to a stop in 2011.) I've seen more-accurate colorimetry on Polaroid film. I'm always glad to get home to my Sanyo.

God-willing, it will outlast me.

If anyone has a 28745 with the HDMI input, I'd appreciate you letting me know before you trash it.

An option if you can get one would be the HDFury. I have an HDFury 2 which adds HDMI to my same vintage Philips 30PW850H which only has YPbPr. My set had overscan issues, but the Philips firmware didn't allow for proper correction. I've paired the Philips and HDFury with a DVDO Edge, and that combo is an amazing combo. The DVDO Edge has allowed me to get years of extra use out of my Philips, with HDMI only gear like a Chromecast that I'd otherwise be SOL on.

Give a man a fish; you have fed him for today. Teach a man to fish; and you have fed him for a lifetime
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