Hitachi 51/57/65F59A CRT RPTV Tweaks Thread - Page 153

As Bob mentions, it is very important to keep the optics clean. Also, I did the schemuglage op on my set that in turn left some more work to do. I'm still working on having the best picture possible.

So next time you come by Texas Bob you know what we will be working on.


Clean Optics.



Tape Stripping.



Results

Awesome results Leo! Can't wait to get back to your area again!

b

Sorry, ment to say convergence. I noticed it had drifted over time. I did not have the TV open so it was not a trim pot and the last recorded grayscale setting were still there and did not look anything like just hours before. For now it is just a detective story but If I have anything set that could be killing the set?? The set is stunning once again.

I have a 57F59A that needs a new home. I thought there might be an enthusiast of CRT RPTV's who would really like to have it. Hence, this posting before I place it on my local Craig's List soon. I not going to ship it or anything so you'd have to pick it up from me in Reno, Nevada. I know this is a long shot, but thought someone here might be interested. I love the TV but my wife hates it! So, off it goes! It'll be very cheap to any AVS member that wants it!

It was bought new from Circuit City in October of 2006. The HDMI input no longer works, other than that all inputs work and it is in Very Good to Excellent condition.

If your set is stunning again, nothing would be killing it, so relax. If something is killing a set, chances are it will be visually evident. Even points that are set to be working against each other show up in the picture, when you can't correct anything in between the points. Setting them to NOT be working against each other cures that.


b

Ok I have convinced the wife to stick with the tv and I will spend the $500 on her instead of a newer, less room hogging set. I bought the BR Lord of the Rings trilogy as a Christmas present. I cant wait to watch them on my set. So with that said I will be considering the fixing of that off and on pesky red coming in and out.

Hey I did that Shempterpflug thing too. However I put washers under one end and kinda manually aligned it that way. whats up with the tape on the red. Is that another way of doing it cause mine is better but not perfect.

By changing the angle in which the light hits the screen (putting the washers under the guns) we improve the capability of the light to be better focus... however, it is not uniform through out the screen. In my case I have razor sharp focus in two thirds of the screen for red and blue, and of course green is perfect all around since it is in the middle. You have to adjust the focus so the opposite side is not very noticeable, or tolerable to you.

The tape is used to give that color more uniformity through out the screen. In my case I also moved the red trimpot... and NO, this is not recommended, I had to dialed it down just a tad because after the schemuflag op red was blooming more than I would tolerate... I did not have this problem with blue, although I've been wanting to boost blue just a tad, and this is only based on calibration readings.

Here are the numbers after the schemuflag op.

I already have a 51F59A that works reasonably well but one showed up locally on Craigslist. "It makes a popping noise and won't come on." Is that an easy fix or not? It's pretty cheap as it is for parts mostly for the screen (it still bothers me to have the gray bezel from a 51F710A when my kid broke my original screen) and the front panel which is messed up from my kid.

Not being a repair person or a technician, just from what I remember form other threads... the poping is usually due to cold solders going week or bad on the main board. Check with Mr. Bob, he might be able to help.

I scored the broken 51F59A for $25. Swapping the screens and front panel now... Looks like they left 2 lens covers in this one (not on the lens of course). Weird.

I think I'm gonna fire an email to Summit HDTV. He's much much closer to me than Mr Bob (no offense).

Please share some pics when you're done... Summit is cool; If I remember he has a Lumagen within his video chain, taking his overscan under 2%.

Well, the dreaded time has finally come. I have to part with my beloved Hitachi 65F59 HDTV. And just when I had cleaned and tweaked it to a superb picture, using the best advice in the world on this forum. I have officially retired. The wife (of 42 wonderful years) and I are downsizing our residence and moving into a much smaller house in Stow Massachusetts. We will be moving in January and February to be 1.5 miles from my youngest Son, his wife and their expectant new son (in February). Anyway, the big Hitachi box will not fit well in the 12 x 12 living room of the new home. Oh how the mighty have fallen! So I will be trying to sell it before moving. I bought it new in 2007. It is in like new condition. And everything works fine. It just doesn’t pass the WAF anymore. If anyone on this forum is interested in it. Let me know. And we can arrange something offline. It must be picked up in Massachusetts, or arrangements must be made to ship it by the buyer. I will not move it or ship it. I hope it finds a great new home. I will be moving my smaller Sony 34” XBR KD 970 HD CRT into the new living room. It’s funny, because that sucker is fatter than the Hitachi. But the wife loves the big 8’ entertainment furniture piece it resides in for her decorations. Go figure. I won’t miss anything on PQ between the Hitachi and Sony. But I will dearly miss the size.

Bummer on TV. Yipee on retirement

I'm getting close to making the same jump. The 51F59 has begun the drifting convergence thing again, and now the geometry is starting to distort. I can get the convergence dialed-in and it looks like a million bucks that night after the adjustments, but after being powered off overnight then the next evening the pq is not as sharp, and investigating by a quick look at the 117pt user convergence grid will generally show either red or blue has shifted as an entire color, uniformly (e.g. every single verticle grid line on the 117 pt screen will show red shifted about 1/16" to the left). Its easy to correct by going into DCAM via the remote keypad sequence (Hold TV then ASPECT+9+STOP) and then raster mode to move entirely whichever color is shifted, ROM write and exit. But lately she's also become finicky about going into DCAM mode with the remote keypad sequence. I have to remove the batteries from the remote for about ten seconds and then reinstall them before the keypad sequence will put it into DCAM adjustment mode. Do all that and the next day red might be entirely shifted to the right. Or maybe blue will be shifted. Its getting old dealing with it.

oh no!
My 57F59A has been going strong.
Today my son (2.5 years old) put a huge crack right down the center of the screen!

HELP!!!!!

Tell me my options!

ugh.


EDIT:
googling, but love to hear something better.....

It's about the easiest tv repair you will ever complete. They're 14 phillips head screws around the rear of the bezel to remove. The replacement part # is UX26082, you can find it at vancebaldwin for $251.38 which includes tax & ups ground shipping. You might need an extra hand due to the size of the screen. Hope this helps & good luck...
also PartStore

Not finding in stock anywhere yet.....


EDIT2: for fun checking my local craigslist ads....
3 in working condition for around $200. also a 57g500.

lighting fried one for $60, need to write these people and confirm model and size!
http://columbus.craigslist.org/ele/3146188644.html
Edited by Prodeje79 - 8/30/12 at 4:38pm

The view screen is in 2 layers, the glarescreen a third layer. Are all 3 cracked or only the outermost one, and is that one the glarescreen - clear acrylic - or the lenticular (no glarescreen)?

b

OK which layer is this?

crack.jpg 35k .jpg file

OK sorry, I had to have a little fun.

OK here are pics of the big crack in middle and little crack more to the left.
I am not sure which is cracked.
The outer layer is not glossy or flat. It has ridges.
That is for sure cracked.
Wow it is dirtier that I noticed.

IMG_4346.jpg 1589k .jpg file
IMG_4347.jpg 1438k .jpg file


It appears there are tons of my TV here locally in working condition for $200. The lightening strike one for $60 was already set to curb and gone.
Will this be my most cost effective option?
I am sure another cheap one will show up.

You found that one on Craigslist didn't you? I think I remember seeing that one on a Ohio CL about 3 or 4 years ago when I was looking for a 51F59A screen.

FWIW a 57F710 screen would work but the bezel is gray instead of black but there's a glossy protective screen in front of the lenticular screen.

I have just had another review on my calibration work appear at www.yelp.com, which is basically the same review that just appeared here above in this thread, by Marcilmi. It appeared on the site the first day and by the second day was filtered along with 5 other previous ones. 2 out of 8 are all that are showing. 6 of the 5 star Image Perfection reviews have been filtered.

All are 5 star reviews and are from real people whose sets I have personally calibrated. They can only be seen by finding and clicking on "Filtered". This is a travesty IMHO, but I have no say in it. Nor do those reviewing my work. The Yelp filter is a renegade filter than even Yelp cannot control - even they admit that, in their animated explanation of how it works - but is obviously just slightly flawed.



If you are interested in having a calibration or repair work done by me, you are only getting part of the story from what's on Yelp's front page. Please click through and read all the reviews!



Mr Bob
Edited by Mr Bob - 9/2/12 at 11:48am

Wait till you see the condition of your projection optics in there! Even dirtier -

b

I guess the owner's team didn't win, huh?



b

good day everybody! I am new to this forum and started an account because of the following story…

On the way home yesterday I saw an older “bigscreen” tv on the road that said “works fine free”. I had previously been searching for one of these to use as a old school gaming tv for the basement; you know Nintendo, ps, etc. I am a nut for hdtv and blu-ray movies which I use on the upstairs lcd tv and my ps3; so I was not very particular about picking up one of these old tv’s for the basement. Upon looking at the tv up close, I noticed it was hd capable and even had an hdmi port! I started thinking that this might have big potential! It’s a Hitachi 51f59a with a manf. date of 2006.

Loaded it up in my jeep and brought it into the garage, powers up fine. Turned on, the 3 colors are out of sync. I had never had a crtrptv and was unaware of what was going on. Read the manual and tried “magic focus”, this helped but the red was still off on one side of the screen, tried the manual convergence too with no luck. It also appears that the convergence changes after every power off (or it could just be my eyes).

Long and behold the plethora of internet information and had spend the last 2 days reading the incredibly long posts about this sort of stuff. I had a good indication of things needed to be done (dcam adjustment, a cleaning, etc) but what I am asking today is there a specific order of things I should try? From easiest to hardest, general to technical? I figured I could have bumped a gun out of sync on the drive home. I still have to put it in the basement so I will try the convergence stuff after that. I do plan on reading the threads; just need a push in the right LOGICAL direction. It appears to be in good shape, defiantly dirty, screen is good, and I have the remote too!

Welcome Lang. GIve it time, Mr Bob is still about and hopefully will answer your questions.

I still have mine and wont get rid of it till it's dead

yes, he sounds like a god when talking about this stuff.

Lang -

Welcome! Glad you're here.

Your convergence circuitry has failed. Anytime you can get the points to do your bidding in one section of the screen but not another, that needs to be remedied, which usually simply requires the replacement of the ICs in that section. Sometimes more.

Let me know if I can help you personally by repairing that for you.

b

So I will be buying a convergence repair kit with new ic's and resistors.

My order of fixes are:
Clean lens, mirror, mf sensors
Blackout interior with cloth
Ic and resistor repair
Dcam
Color adjustments etc with some sort of dve blu ray?

Is this a logical order?
I might want to get a perfect picture in the future but I mainly want to get it up and running and looking good enough to play blu rays on with my ps3.

Random questions:
What are the pots on the focus pack for? What type of parameter do they adjust?
Should I do the riser block tweak?
Should I do th lens striping technique?

Do any of these need super specialized equipment to get good results? Or can a lot be done by eye?

EDIT:
Took the board off with the ic's and resistors. Looks likei could have some cold solder joints on the ic's. I am going to grab my 15w iron at work and hit them tomorrow and see what happens.
Edited by langless28 - 10/8/12 at 7:14pm