CurtPalme.com Home Theater Forum

[tvless]

Dear forum team,
Another Noob needs help with error code 10 on Sony VPH-1251q
I been in this hobby for less than two months... and I need your help and or opinion please !!!


Same as six week ago, when I had error code 10 (it means Abnormal High Voltage) in my Sony VPH-1251q, did try to clean and perform some tender loving care (as I did six weeks ago and it was effective) on my DC & E boards and do some dusting and cleaning on the boards and CRT tube cables... this time, the error did not disappear.

Since I have another spare unit with me and with the same model and system, I did swap the units and had the same error.... error code 10 as per Sony Display....

The only diference today is that in Windsor Ontario tempeture went up to 30ºC (hot and humid and no Air conditioned in my house today still)....

Now my questions 4 u are:

1) Should I sale both CRT as spares and get a newer one?
(just be aware that both CRT units have 1600 and 56 hrs each of CRT use only, and image projected look very very good in 720p resolution (I have no HiDef still in place), when they work)

or........

2) Should I keep both and buy new CD & E spares?


or...........

3) Should I buy and replace the HV board first?....


Your help is appreciated,

thank you

Jose
Windsor Ontario
[/u]

[tvless]

the issue above happen at noon, now it is 1100PM and the room and house has cool down, so it is temperature sensitive, so is it a transformer or a condensor on the high voltage card getting too hot? what is it then?,,, temperature above 30 C is shuting down and creating error,,,, I am watching a concert rigth now, and it is like if nothing has ever happen,,,, what is it docotors? what is it?

[tvless]

What about measuring "when" the error happens?

In other words, at what temperature that happens....

has anybody in the site tryed to build a temperature monitoring system like this one?

LOOKS COOL:
http://users.tpg.com.au/pschamb/atv3.html

Still, this will measure the cause, but not the "root cause",

1) what and how am I getting a component hot enogh to create this fault?
2) why did the spare sony projector had the same fault also (same temperature of course), but "what is the root cause"?

is any of the parts in the high voltage section of a SONY VPH-1251q that sensitive to the external room temperature?

I love this hobby, makes me feel alive for sure.... and makes me be humble... I always been a mechanical process guy, machining, laser, plasma etc.... this is soooo cool !!!!!!!!!!!!!!



Jose

[macgyver655]

If it is temp relate, next time it gives you an error, open it up and aim a fan at it to cool off the air around it for a few minutes and see if the error goes away.

[tvless]

** Thank you Mac, I will follow your advise 4 sure...

** I will investigate (if u guys recommend me so) also by freezing sections one at the time, I been told I can buy some spray at The Source or Radio Shack where you can aim and freeze sections, in such way that you can find the issue that way... however, I am wondering about conductivity of the freezing agent (might cause a short circuit)....so in second tough, I rather do what you are suggesting to me Mac....

** Before this happen I did also added 3-1 oil to the 4 mini-fans to avoid noise and wear, so it is not lack of cooling down the unit, I also have an extra fan that I made with an old cell phone transformer that I can incorporate if needed, if you remember, the Sony 12xx series have an opening for air intake that would allow me to inject or force in cool air (similar to the small mini-mini-fan between the CD & E boards... but we'll see...

** Any freezing agent you can suggest me to use would be appreciated, so I can find the root cause....

** NOTE: **
The estrange part is how come "BOTH" my regular and my spare units failed at the same time under the same temperature conditions.... what would it be the odds of both same models at the same location and time failing of the same component at once also?.... is that interesting or what? Is this issue statistically challenging or what? .... Both units were made in Japan also….

** I really really appreciate your opinion guys... again, the units now works great, except in hot weather conditions (30º C or more, could be humidity also, I live near the great lakes area)

tx,

Jose

[macgyver655]

Hmmmm. I'm not so sure oiling them fans is a good idea. There are sensors in there to detect they are spinning and the oil may affect them. But your not getting a fan code. Hmmmmm,

[tvless]

The mini-fans have 3 wires, live, ground and speed control, so the only "bad thing" I guess it can happen is that the speed control fails, in wich case I would put together the red and white wires for constant speed and the black one would remain alone, howeverm they are working with very very low noise levels (if any acutually), this CRT's were in no use for years, I just got them for free a month ago and started to lear about them... again, I am a mechannical guy nor an electronic guy and my opinion is very subjective and based on no previous experience in electronics it all...

thanks for the help man !!!

Jose

[macgyver655]

[tvless]

I will unplug one of the mini-fans connectors next time I am in the need to open the hood Mac, I do not know the origin of your comment but I am sure it is based on your experience while in my case it is just common sence, but opinion can't change the truth, theres only ONE truth no matter what isn't?

Mac, howevver, I did seal the mini bearing shafts with electrical tape to avoid the oil going anywhere into the unit, so it is well contained into each one of the mini-fans, and I did verify that they are working smooth and properly,,,

Do you think this is related to the error code 10 for high voltage Mac? or it is for additional info only? (just to make it clear for me bro)

thank you for the info for sure, help is always welcome,

Jose


[quote="So thats your thought process on the fan wires, is it? HEHEHEHE!!!!!!!! So then unplugging a fan should do nothing more then that fan not spinning. HEHEHEHE!!!!!!! Try it and see what happens......... [/quote]

[Curt Palme]

Sorry I haven't jumped in.

I have NEVER had a thermal fault in a 12XX series, now I've read about 1 or 2 here lately.

Usually error 10 is a problem on the two boards under the top cover. Those are the H and V boards. THe HV transformers never fail, so count those out. THe Pa board on the HV power supply is usually reliable, but could be an area of failure as well.

I can test urn any of hte boards for you if you want, I have working 12XX test sets here.

[Curt Palme]

Sorry I haven't jumped in.

I have NEVER had a thermal fault in a 12XX series, now I've read about 1 or 2 here lately.

Usually error 10 is a problem on the two boards under the top cover. Those are the H and V boards. THe HV transformers never fail, so count those out. THe Pa board on the HV power supply is usually reliable, but could be an area of failure as well.

I can test urn any of hte boards for you if you want, I have working 12XX test sets here.

[macgyver655]

[tvless]

Curt and Mak, no problem, I really appreciate the help !!
Mack no explanation is required, just wanted to be sure that I was getting what you were telling/feeding me bro (I am kind of slow for this hobby) !!
It is that I am a nooby and I have sooooooooo many questions that are very basic for you guys, but for me are like a brain twister !!

NO PROBLEM AGAIN SO FAR-------->
So far, Sony VPH-1251q projector has been working without problems since Saturday nigth (it is Monday now)... I always tougth that hot weather dilatated the metal and causing or showing up a cold solderin area at one of the capacitors, so I will take a look at that also next time by pushing each of the top two main boards capacitors, just to see if I have a cold weld/soldering...

HEAT EXCHANGER unit?????
I am really thinking of buying a heat exchanger to be be used in summer time, as I am from Mexican background and we do not turn the AC that often, as we need some vitamin D in the North Polo, we only have two seasons, July and Winter.... jajajaja
Have you guys ever been in the need of one? Like the solution I have seen posted for noise reductions via a wooden box, do we have a solution for temperature for the CRT units?


FREEZING SPRAY????
Before that I will try to cool down if it does not start, with the regular home fan, and if that does not work then:
I will try the freezing spray also if I do not get lucky with finding one of the cpaacitors cracked welded legs... that is the way we learn... need to practice on this baby before jumping to mid or high range projectors bros !!!


SPARE BOARDS?
And Curl, if needed I will buy some extra CD & E (top main ones) boards from you, I will PM you if I get to that point... I am really getting used to have a huge screen of 8' X 6'.... and I am only using low resolution (still it looks fantastics compared with the Plasma and LCD screens I have seen at the mall) ... very soon I will install a Video Scaler to improve the quality....

Thanks you guys !!
Any new suggestions are welcome


Jose

[macgyver655]

Hey Curl........got any a dem dair perjekter berds in the back shead?????????????



Sorry, it just struck me funny........

[tvless]

lol 2

[tvless]

[macgyver655]

If the fan seems to be affecting it then I would assume it could be diagnosed as temp related. The next step would be to localize the cooling. I myself dont use cool spray very often. I usually use a compressor and a fine tip blow gun. Not sure what your options are.... you'll have to hunt it down on your own though. Probably start with the PA and E boards, then go from there. Have fun.....