PRC as a amplifier in GPS question.

[Trevor Wilson]

"paul packer" <packer@iprimus.com.au> wrote in message
news:439d032f.3346195@news.iprimus.com.au...

On Sun, 11 Dec 2005 04:28:00 GMT, "Trevor Wilson"
trevor@SPAMBLOCKrageaudio.com.au> wrote:


I still don't buy it that NAD
went downhill during the 90s due to some obscure design flaw in their
products ("PE"). They did probably lose some ground with the
relatively uninspiring 302/304--312/314 amp line, but then quickly
made up for that with the 320/340 line, on up to the current 320BEE.

**And yet, they've ceased building PE technology into their products. If
it
was such a brilliant idea, they'd keep doing it.

I can think of several reasons why not. All technology moves on.

**Not necessarily. GOOD technology remains.

They

may simply have found a better way of achieving the same end, or
decided such minor power boosting was superfluous.

**NAD do not achieve the same end, using different technology. They are now
using the same technology they were using prior to the introduction of PE
topology. And further: The "Minor power boosting" was hardly minor. The NAD
2200 amplifier was capable of FOUR TIMES the power on transients.

The question is, if

PE amps sounded so bad and NAD discovered this, why did they not
discover it during the design stages?

**Not necessarily. NAD just lost it's way. They forgot their roots.

Also, why has no one but you

ever suggested PE amps sound bad?

**I'm not the only one. The people who chose products like Rotel instead of
NAD voted with their wallets.

And why do they continue to enjoy

such a fine reputation with vintage gear enthusiasts who are usually
very knowing about these things (check Ebay prices).

**See previous discussion about PERCEIVED quality. Also see my previous
comments about the large amount of transient power, vs. Dollars and
packaging size.

And why did the

PE amp I had sound so good (pretty much on a par with the much later,
and much celebrated, Rotel 931 Mk11. I was able to directly compare
them over several weeks).

**What speakers did you use?

You should know that there's a secret prize for answering these
questions satisfactorily.

**After you tell me what speakers you used, I should be able to answer your
question.


--
Trevor Wilson
www.rageaudio.com.au

 

[Clifford Heath]

Heywood Jablome wrote:

If they watch threads with the word Jaycar in them, then why have they not
taken our advice and fired the person responsible for their website search
engine?

Same guy who watches the threads, would be my guess.
Just use google "jaycar thingo", not perfect but better.

 

[Phil Allison]

"Heywood Jablome"

If they watch threads with the word Jaycar in them, then why have they
not
taken our advice and fired the person responsible for their website search
engine?

** Jaycar do not take advice from anyone.

They give it out.




......... Phil

 

[Trevor Wilson]

"paul packer" <packer@iprimus.com.au> wrote in message
news:439d5e28.16123186@news.iprimus.com.au...

On Mon, 12 Dec 2005 05:32:17 GMT, "Trevor Wilson"
trevor@SPAMBLOCKrageaudio.com.au> wrote:


You should know that there's a secret prize for answering these
questions satisfactorily.

**After you tell me what speakers you used, I should be able to answer
your
question.

Oh Trevor, you are forgetful. Why would I listen to speakers when I
can listen through my trusty Sennheiser HD 595s?

**Precisely! I already knew the answer to my question.

And yes, I know you're now going to say, "Oh well, all bets are off as
amps aren't made to drive headphones."

**Nope. Amps ARE made to drive headphones. The trouble is there are a wide
variety of schemes to accomplish this. They do so, with varying degrees of
quality. In some cases, the output stage (for speakers) has absolutely
nothing to do with the headphone circuits.


Whatever, I'm convinced

headphones are the great leveller as they remove the power factor and
the inevitable reactive load.

**Your assumption is faulty. You don't mention which NAD amp you owned, so I
can't tell you how the headphone outputs are configured. I can, however,
tell you that the Rotel RA931-II uses a series resistor of 330 Ohms for the
headphones. If the NAD uses a lower value resistor, or, even better, a
dedicated headphone amplifier, the difference in sound quality could be
substantial. Moreover, your logic is flawed. Although headphones, generally,
will expose minute differences in source and amplification more readily than
most loudspeakers, their impedance curve is more benign than most speakers.
As such, they will place relatively minor demands on amplifiers.
Additionally, I presume you are comparing similarly priced amplifiers?

I've been listening to amps through

headphones now for 30 years and getting similar results to what others
report using speakers. The only complication is when an amp uses a
separate HP amp, but almost none of them do save the odd NAD pre-amp.

**Not so. Many decent quality amps use a headphone amp. Which is EXACTLY the
kind of amp you should be using. In your situation, a power amp stage is
wasted. You would be better off using a dedicated headphone amplifier, or a
preamp which has adequate drive for headphones.


--
Trevor Wilson
www.rageaudio.com.au

 

[David L. Jones]

Michael C wrote:

I've asked this question here before and got the answer that it's possible
to do it with a resisitor and a cap by measuring how long it takes for the
pin to reach a high state. I tried this and much to my suprise it worked
extremely well first go. I just guessed values for the resistor, capacitor
and delays in software and it all worked straight off! Usually it takes me
hours or days of stuffing around to get something like this working.

Let me get this clear - you want to measure external voltages with a
digital input on a micro?
I do hope you are using a pin which has a schmitt-input, using a
non-schmitt input is a horribly bad way to do it.

Why don't you just use a micro with an ADC and do it properly?
What accuracy do you need?

Anyway, my question is that it is possible to measure voltages higher than 5
volts while keeping the voltage at the pin continuously below 5 volts. But
there is an off chance of the micro crashing and leaving the pin as open
which would allow the voltage at the pin to exceed 5 volts. This can only
happen while the pin is in it's high (open) state as a low state will hold
the voltage low. Is this likely to be a damage the micro? Should I use
resistors to, say, halve the voltage and keep it at a max of 5volts?

Yes, don't overload the input. But using a resistor divider will upset
any R-C ratio.

My other question was when I switch the micro pin low to discharge the cap
it will discharge very quickly. Is that likely to be a problem? Should I use
a resistor to slow the discharge?

Yes, that would be good practice.

Dave

 

[Trevor Wilson]

"Brian Goldsmith" <brian.goldsmith@nospam.echo1.com.au> wrote in message
news:Ezknf.18452$ea6.5702@news-server.bigpond.net.au...

***** Please dont cross post and take your audiophoolery away from
aus.electronics.

**Take your complaint up with the original poster. Further, if you would
care to elucidate what the fuck "audiophoolery" (WRT this particular part of
the thread) is, I'd be happy to discuss whatever you want in more technical
detail, if you wish. Not one word I wrote is incorrect, WRT headphones and
amplifiers.


--
Trevor Wilson
www.rageaudio.com.au

 

[Michael C]

"Heywood Jablome" <reply to thread> wrote in message
news:439d52ec$0$17705$afc38c87@news.optusnet.com.au...

If they watch threads with the word Jaycar in them, then why have they
not
taken our advice and fired the person responsible for their website search
engine?

It's probably the same guy who wrote the whitepages and yellow pages search
engine. Search for "ski" in "box hill" it says "too many results".

Michael

 

[Arny Krueger]

"paul packer" <packer@iprimus.com.au> wrote in message
news:439d5e28.16123186@news.iprimus.com.au...

On Mon, 12 Dec 2005 05:32:17 GMT, "Trevor Wilson"
trevor@SPAMBLOCKrageaudio.com.au> wrote:


You should know that there's a secret prize for answering these
questions satisfactorily.

**After you tell me what speakers you used, I should be able to answer
your
question.

Oh Trevor, you are forgetful. Why would I listen to speakers when I
can listen through my trusty Sennheiser HD 595s?

Because your speakers were actually worth a darn?

 

[Michael C]

"David L. Jones" <altzone@gmail.com> wrote in message

Not to mention that regular digital inputs are NOT designed for slow
changing inputs, in fact they hate it and can often latch up, go
metastable and just generally do horrible things to ruin your day.
Schmitt inputs are purpose designed for slow changing inputs such as
this. Read the data sheet, it will tell you so.

What do you define as slow? I think it's taking 500us to trigger at the
most.

If you don't have a schmitt input then you are going about this the
wrong way.
Exactly what micro are you using?

The atmel 89c2051 or the phillips p89c668. I'm using the phillips for the
prototype because it can be programmed in circuit.

A schmitt input is like a comparator, it will instantly switch HIGH
when the input passes a defined threshold voltage. It won't have any
problems with slow changing input voltages. This is precisely why many
micros have schmitts on some inputs.

Actually I think the micro does have 2 pins that will act like this. You can
supply one of the pins with a predifed voltage and the other will be high if
it's above and low if it's below that voltage. Although I'm not sure the
phillips chip has this.

I assume you are using something like a LM35 temp sensor which gives a
linar output with temperature like 10mV/degC?

This is for thermo fans in a car so the sensor will be a regular car temp
sensor. The sensor will change resistance with temp so I'll be able to
tailor the voltage to my liking.

The tolerance on your capacitor alone will likely throw things out of
whack, let along the threshold voltage tolerance.
What temperature range are you tesing over?, and does your circuit
change with this temperature as well? - if it does then add on the
tempco factor for the cap and threshold voltage. Yucko!

I was going to also measure the supply current as changes in this will
likely be reflected in the temp sensor, so this would probably take care of
any temp effects in the caps.

What is the driving factor forcing you to use a digital input to do
this?

It was easy, I had a cap and a resistor at home

Is this a one-off or a commercial thing?

Two off really. A friend asked for it and I'm going to use the same thing on
my project car. I might end up making a few others if it works well enough.

Why not simply use another model of your micro which has a proper ADC
built in and do the job properly with real accuracy you can guarantee?

Being that this is a hobby thing I'm not overly keen on changing processors.
I might need a new flash programmer and I'm not keen to move away from 8051
as I can't be stuffed learning a new micro

Or why not use an external ADC?

Using an external ADC is probably the perfect solution as I can keep my
code, flash programmer, partial circuit board design, prototype etc. Can
you suggest one? I'd probably prefer an I2C one as I've got one other I2C
chip, although I've got plenty of spare pins so it's not critical. I tried
searching but the sheer range had me confused

Thanks for the replies.

Michael

 

[Anthony Horan]

On Tue, 13 Dec 2005 00:05:03 +0100, Jean-Paul Turcaud wrote:

5) I have rightly anticipated the devastating 9.2 Sydney Quake on New Year
Eve, and will not shed a tear over the carnage

And I'm sure given your excellent track record at predicting these, Sydney
is quaking )pun intended) in its collective boots. After all, they probably
don't remember your post to sci.geo.earthquakes of June 13th, 2000...

"For example you are completely unable to anticipate the terrible Sydney
earthquake coming at the time of the SOG. I see it as a very SOGGY SOG
indeed with a repliqua to which I estimate being a major earthquake - 8 on
Richter scale - generating a tidal wave of some 40m high coming in at
between 200 & 300Km/hour and going probably 50 Km inland. I am the only
one presently to warn people in time and this will probably save 1 000
000 lives. You don't probably know it, but Sydney is a major earthquake
line and we are coming to a solar max right at the time of the SOG + many
other things I know about."

Guess they dodged THAT bullet, hmmm?

(SOG here refers of course to the Sydney Olympic Games)

 

[David L. Jones]

Michael C wrote:

"David L. Jones" <altzone@gmail.com> wrote in message
Not to mention that regular digital inputs are NOT designed for slow
changing inputs, in fact they hate it and can often latch up, go
metastable and just generally do horrible things to ruin your day.
Schmitt inputs are purpose designed for slow changing inputs such as
this. Read the data sheet, it will tell you so.

What do you define as slow? I think it's taking 500us to trigger at the
most.

Hundreds of ns is a typical maximum risetime figure for digital logic.
500us is HUGE.
A lot of micros will latch the input data so the chance of
metastability is large.

If you don't have a schmitt input then you are going about this the
wrong way.
Exactly what micro are you using?

The atmel 89c2051 or the phillips p89c668. I'm using the phillips for the
prototype because it can be programmed in circuit.

A schmitt input is like a comparator, it will instantly switch HIGH
when the input passes a defined threshold voltage. It won't have any
problems with slow changing input voltages. This is precisely why many
micros have schmitts on some inputs.

Actually I think the micro does have 2 pins that will act like this. You can
supply one of the pins with a predifed voltage and the other will be high if
it's above and low if it's below that voltage.

Bingo - guess what it's for!

I assume you are using something like a LM35 temp sensor which gives a
linar output with temperature like 10mV/degC?

This is for thermo fans in a car so the sensor will be a regular car temp
sensor. The sensor will change resistance with temp so I'll be able to
tailor the voltage to my liking.

The tolerance on your capacitor alone will likely throw things out of
whack, let along the threshold voltage tolerance.
What temperature range are you tesing over?, and does your circuit
change with this temperature as well? - if it does then add on the
tempco factor for the cap and threshold voltage. Yucko!

I was going to also measure the supply current as changes in this will
likely be reflected in the temp sensor, so this would probably take care of
any temp effects in the caps.

Ridiculously complex. Just get an ADC with a voltage reference and your
problems are solved.

What is the driving factor forcing you to use a digital input to do
this?

It was easy, I had a cap and a resistor at home

Is this a one-off or a commercial thing?

Two off really. A friend asked for it and I'm going to use the same thing on
my project car. I might end up making a few others if it works well enough.

Why not simply use another model of your micro which has a proper ADC
built in and do the job properly with real accuracy you can guarantee?

Being that this is a hobby thing I'm not overly keen on changing processors.
I might need a new flash programmer and I'm not keen to move away from 8051
as I can't be stuffed learning a new micro

Or why not use an external ADC?

Using an external ADC is probably the perfect solution as I can keep my
code, flash programmer, partial circuit board design, prototype etc. Can
you suggest one? I'd probably prefer an I2C one as I've got one other I2C
chip, although I've got plenty of spare pins so it's not critical. I tried
searching but the sheer range had me confused

I2C ADC's are harder to find, most are SPI/Microwire. The usual Aussie
suppliers don't have an I2C one in DIP that I am aware of.
Most also do not have an internal reference, they reference the value
from the power pin.
But you can use a voltage reference to power it.
The TLC549 is a typical low cost 8bit ADC without reference.

Just found this link:
http://www.atmel.com/dyn/resources/prod_documents/DOC0524.PDF
It tells you how to make an RC ADC with 50mV resolution and <0.1V
accuracy on the AT89C2051 using the internal compartor.
It also explains component variations as I mentioned.

Unless you do the calculations to show that you can get the required
accuracy with the RC solution then go with the external ADC and
reference.

Dave

 

[-= Spudley =-]

Anthony Horan wrote:

On Tue, 13 Dec 2005 00:05:03 +0100, Jean-Paul Turcaud wrote:

5) I have rightly anticipated the devastating 9.2 Sydney Quake on
New Year Eve, and will not shed a tear over the carnage

And I'm sure given your excellent track record at predicting these,
Sydney is quaking )pun intended) in its collective boots. After all,
they probably don't remember your post to sci.geo.earthquakes of June
13th, 2000...

"For example you are completely unable to anticipate the terrible
Sydney earthquake coming at the time of the SOG. I see it as a very
SOGGY SOG indeed with a repliqua to which I estimate being a major
earthquake - 8 on Richter scale - generating a tidal wave of some 40m
high coming in at between 200 & 300Km/hour and going probably 50 Km
inland. I am the only one presently to warn people in time and this
will probably save 1 000 000 lives. You don't probably know it, but
Sydney is a major earthquake line and we are coming to a solar max
right at the time of the SOG + many other things I know about."

Guess they dodged THAT bullet, hmmm?

(SOG here refers of course to the Sydney Olympic Games)

Turcaud AKA, (Chicken Little "brain").

 

[The Real Andy]

On Mon, 12 Dec 2005 10:11:37 -0000, Jasen Betts
<jasen@free.net.nospam.nz> wrote:

On 2005-12-12, ceramics@cof.com.au <ceramics@cof.com.au> wrote:
I'm looking for a circuit to linearise a thermocouple mV signal, so I
can display temperature on a cheap digital multimeter. In particular,
I'd like to convert the output of an R-type thermocouple. The
conversion need not be very accurate - an error of 10 degrees would not
be noticeable and 20 degrees would be acceptable.

Any suggestions?

Thermocouples are linear devices, all you need to do is adjust the gain and
the offset.

Wrong.

I don't have the specifications for an R-type thermocouple, how many
microvolts per degree?

what range do you want to measure

do you want output in 1mV per degree Kelvin, Celcius, or fahrenheit? or
something else?

Bye.
Jasen

 

[Rainbow Warrior]

"Jean-Paul Turcaud" <xyz@atlante.edu> wrote in message
news:dnl01j$mcd$1@aphrodite.grec.isp.9tel.net...

<Snip unread crap>

As for me with my life is nearly gone, but I will assure you that I will
hate you all Bastards until my last breath
... and don't ever come near me fucken Sons of Bitch of australians

That would work if you didn't keep hanging out around us ya dirtbrained
gollywog.

 

[Jean-Paul Turcaud]

Carole,

Zener is typical of the SMS case you have referring to. What is special to
those linear mole thinking circumcised minds if the fact that they are
impervious to others' intelligence, and other ways of thinking.

To illustrate this, it is necessary to know that the Zener kind is a
Khazars ' decent Ashkenazi masquerading as a Jew now ... and hence
estimating that the Philistine land was given to him and all his Ashkenazi
kind but some loud speaking Tribal god who put his race apart as the chosen
race... Okay ? ....while the fact is that neither the Philistine land
belongs to either the Khazars nor the Arabs who invaded it latter and claim
it as well under the same false pretences . ... the Philistines proper
having been laminated in a massive Holocaust directed precisely by the
Tribal god (in fact by the Rabbits pretending on this existence of such and
interpreting Quakes, Thunder, Plagues as the expression of wrath of the
godly swine ) Have you noticed indeed that either in the Toro or the Biball
the YHVH

I have already told you that the whole Thoro saga was really revolving
around a genetic experiment aiming at creating a chosen race to run the
world. This was the result of the Moshe thieving in the Egyptian Arcane and
obtaining, although the Renegade never understood the mechanism of it, the
key to superior control & eugenism of Pharaohs. This took the form of 2
things :
1) The mutilation of the new born on the 1st day of the 1st puberty leading
to the mutilation of the Interstitial ( or genital intern ) with a view to
hyper develop all the other endocrinal glands
( This is the normal physiological response of the body when one function is
lacking indeed, all their remaining ones take the relay )
2) The Kosherout discipline whose key word is Hormones and whose aim is to
prevent interference with the children genetic code through the Endocrinal
interface. The Kosherout discipline should be called the Laws of Racial
Purity and is the key indeed to superior intelligent children ( a thing
completely ushed up by those who have benefited of it since 6000 years )
3) However the terrific consequence of non intelligence of the system by the
Rabbids in charge of it, their ignorance indeed to the key or Modus
Operandi, has conducted the Chosen Race to be Goys at a worse level than the
ordinary Goys indeed .... but the reason for it I will not tell !
.... as a result the Chosen Race has become not only affected by all diseases
striking the Goys ( Cancer, Brain Tumour, AIDS ( the latest goody )) but as
well by specific diseases due to the genetic manipulation ( as well as the
Islamists by the way ) ... and such are particularly Thyroid disorders,
PANCREATIC disorder leading to indulging in alcohol, smoking, drugs, & high
sugary shits intake ( like the Islamists by the way who have the typical
features of Alcoholic ) ... as well as terrific nervous instabilities and
Down syndrome in Children Of course all those diseases are very easily
cured and in the case of the 3 above named diseases, the cure is achieved in
5 days following my research and knowledge indeed. Down syndrome is as well
easily cured and young people reaching the 3rd puberty are back to normal
....Instead of being in slow-learning and protected institutions.

So Zener as all that kind of scientific Dorks masquerading as Geologists
here, Medecine men there have something in common...this is their
propensity at ultra specialisation since unable to achieve synthesis. The
atrophied Interstitial gland is indeed the gland of Universal knowledge (
like the Thyroid the gland of memory, the Hypophise the gland of analytical
iteration and painful lengthily demonstrations )
To make a story short (although the whole affair will have to be outlaid
sometimes to stop that Children mutilations madness ) take the example of
the Quacks industry.

Zener and his mates will tell you that germs, virus, deviant genomes are the
cause of diseases ! ... and all the Quacks' industry work along that
paradigm !
Ask him, you will see that he will confirm that !
I will tell you now that it is not true !!!
Germs, viruses , deviant genomes are the consequences of diseases !
See, why that world is working upside down ? ... and may be that gives you
an inkling why I can cure the sus-named fatal diseases in no time at all ?
In all fields of knowledge taught to those poor hopeless sods in all those
Universilites, the causes are seen as consequences and the miracles of
millions of years and millions of light years are seen as reality !

In another post I will tell you of the real meaning of the Tetragramaton or
alleged sacred name YHVH. ... you will see then how ignorance transforms
very simple concepts in personalisation of gods & goddess


With kind regards


An Essene Master
--
Jean-Paul Turcaud
True Geologist
Founder of the True Geology

~~ Ignorance Is The Cosmic Sin, The One Never Forgiven ! ~~




"Al Zenner" <azen@zenner.com> a écrit dans le message de news:
Xns972AB8F6952C4zsp@63.223.5.248...

hubbca2003@yahoo.com.au wrote in
news:1134426500.976278.236170@f14g2000cwb.googlegroups.com:

snip

How does this fit in with your theory that a synthesised approach can
solve certain problems that a linear approach can't. Surely the problem
lies with the promoters of false science rather than deficiency in
anybody's mind? Its all about power and control with these plotters
who, back about 100 years ago, decided to steer science into deadend
theories for reasons best known to themselves.

The above is loopy enough but:

And so we have the
situation today where science has hardly advanced in 100 years.

This tidbit surely qualifies as one of the craziest statements posted
to usenet in the past decade.

 

[Brian Goldsmith]

"Trevor Wilson" <trevor@rageaudio.com.au> wrote

***** Please dont cross post and take your audiophoolery away from
aus.electronics.

**Take your complaint up with the original poster.

***** My complaint is with you as you continued the top posting!


Further, if you would
care to elucidate what the fuck "audiophoolery" (WRT this particular part of
the thread) is,


Trevor Wilson
www.rageaudio.com.au


****** WTF is audiophoolery?You are a prime example.

I notice you have ceased top posting!

Brian Goldsmith.

 

[Bob Parker]

I suggest that you have a look at the GPSOZ website which has a lot
of info on several brands, at http://www.gpsoz.com.au/
I've been told that Qantas pilots prefer Garmin GPS units, but
that's unconfirmed.
I'll never forget the review of a Tomtom I read, by a bloke in
England. He was using it to get to a job interview in London, but it
completely died on him. He had to buy a street directory to finish the
journey. Apparently the Tomtoms are not the most reliable GPS
receivers on the market...
When you find a GPS which looks interesting, simply type its model
number and "review" into Google, and you'll get tons of user opinions.
Good luck.

Bob


On Tue, 13 Dec 2005 19:49:13 +1100, "Mike" <mike@(nospam).com.au>
wrote:

Anyone have experience of sub $1K GPS In Car navigators. Was interested in
Navman ICN 320 but it does not have 3D mapping. I also have an iPAC 2210 so
have considered a bluetooth Navman 4420 receiver. I am now considering a Mio
or TomTom but have not found many local users that I can question. Anyone
able to offer an opinion on these options?
Regards
Mike

 

[Clockmeister]

"The Real Andy" <will_get_back_to_you_on_This@> wrote in message
news:981tp198vb777tgdbpssrni42so1di73ta@4ax.com...

On Fri, 09 Dec 2005 21:58:39 GMT, "Colin Ž" <tobyjug7@yahoo.com.au
wrote:


"The Real Andy" <will_get_back_to_you_on_This@> wrote in message
news:f2lip158fph265h2gtee3hnqp54aak0c2o@4ax.com...
On Thu, 08 Dec 2005 14:33:18 +1030, John
sittinginthepool@internode.on.net> wrote:


http://business.timesonline.co.uk/article/0,,9075-1914429,00.html



Here we go again.......

At least Sony has the balls to make an attempt to protect there own
interests.


What ? By taking ownership of your PC because you bought a music CD.

Not even Bill has that much arrogance - he's close tho.


Put yourself in Sony's situation. You have something that everyone
else wants. Everyone goes out of there way to steal what you own. What
do you do? Me personally, i dont sit back and let people steal what i
own.

So, what can you do? A third party company comes up with an idea to
protect your interest. What would you do? Would you say 'No, I prefer
people to keep stealing what I own, what I paid for' or would you say,
I will give it a go?

What would you do? Everyone is quick to bag Sony, but no one seems to
understand why they are doing this.

BTW. I am not saying what they do is right, but in their favour, they
are only trying to protect what they rightfully own.

Two wrongs don't make a right.

They don't rightfully own your PC though they think they do by installing
malware.

Fuck Sony, I'm never buying any of their crap again.

 

[Franc Zabkar]

On Mon, 12 Dec 2005 23:48:16 +1030, John
<sittinginthepool@internode.on.net> put finger to keyboard and
composed:

http://users.on.net/~aviannix37/Myparts/MyChips.html


CRT is made by Citizen
CCD chip is made by Sony

I can't help you directly, but here's something that might get you
started.

This is a list of current (?) Sony colour CCDs:
http://www.sony.net/Products/SC-HP/pro/image_senser/color_video.html

I notice that Sony's CCD part numbers end in odd digits for PAL types,
and even for NTSC.

I'd have a look at these datasheets just in case the devices
(ICX419AKL, ICX429AKL) have similar pinouts:
http://www.sony.co.jp/~semicon/english/img/sony01/a6805301.pdf
http://www.sony.co.jp/~semicon/english/img/sony01/a6804693.pdf

FWIW, a Google search for ICX031AK finds a JVC CCD.

A datasheet for Sony's 20-pin ICX039 is available here:
http://www.alldatasheet.com/

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

 

[Lord-Data]

They're not broken, theyr not designed to remember sequence settings between
runs, which is yes, very annoying..


however:

http://computerchristmas.com/index.phtml?link=how_to&HowToId=23


^^^ Guide to adding a capacitor to the system to give 12-14 hours memory
time.. Should be adaptable to a lot of different boxes.


"Grenge" <Grengeis@thefootthatisbig.com> wrote in message
news:439f51c4$0$3638$5a62ac22@per-qv1-newsreader-01.iinet.net.au...

I am wondering if anyone knows if there is an easy way to repair some
christmas lights?
Some of the lights we have won't remember the setting they are on and will
revert to the first setting each day. I know that all the lights we have
are different types but I was wondering if anyone knows if they have a
battery or capacitor iside the box to remember the settings.
I can try to get mor info from the boxes if that would help.

Greg