Spinor Info

And the Earth dies screaming

May 052019

There is this wonderful Tom Waits song (Waits may be the only artist I know who presents cacophonic noise as “music” and yet the result is something I don’t hate), Earth Died Screaming. The title is borrowed from The Earth Dies Screaming, a 1964 British film, scenes from which are used in the Tom Waits music video.

The British movie is about an alien invasion. But a friend of mine used this phrase a lot lately as he is posting about environmental disasters, such as the ever growing islands of plastic in the ocean, the rapid, wholesale disappearance of species, or the still callous attitude of greedy humans who continue to engage in wanton destruction.

And then there are the bugs.

It wasn’t that long ago that I read somewhere online the observation that nowadays, when you go on a highway drive on a summer evening, your windshield no longer gets covered with bugs. Sure, some of it might be explained by the more streamlined shape of automobiles, allowing laminar airflow and letting the bugs escape… but it isn’t a very convincing explanation and I, too, noticed that the bugs are no longer a major problem.

And then, I read about vanishing insect populations in National Geographic.

Here are a couple of sentences worth quoting:

“In October 2017 a group of European researchers found that insect abundance (as measured by biomass) had declined by more than 75 percent within 63 protected areas in Germany—over the course of just 27 years.” Or that “within a relatively pristine rainforest in Puerto Rico, the biomass of insects and other arthropods like spiders had fallen between 10- and 60-fold since the 1970s.”

If this doesn’t scare the bejesus out of you, maybe it should.

Kaiser Wilhelm and the lessons of history

History No Responses »

May 052019

I just finished reading Miranda Carter’s superb book, George, Nicholas and Wilhelm, about the three royal cousins who, often unwittingly, helped pave the road to WWI.

Though the book was written many years before Trump ascended to the White House, the parallels between Wilhelm and Trump are frighteningly inescapable.

What this means for the future, I don’t know. Like Trump, Wilhelm was at least as much a symptom as he was a cause: A symptom of a society with deep divisions and unresolved problems. Like the war that began in 1914, a future conflict may end up destroying the fruits of an unprecedented era of prolonged prosperity and progress, leading to chaos and disaster instead. And given the advances in technology and the proliferation of weaponry, including nuclear weapons, a future conflict will be much, much worse than anything the world has seen, including the horrors WWII.

Carter seems to have the same sense of apprehension, if her article published in The New Yorker last year is any indication. And she warns, rightfully in my opinion, that just as it was the case with Wilhelm, the real consequences may only come long after Trump is gone in the White House.

Oh well. To cheer myself up, I began reading Mary Beard’s SPQR instead, a modern history of ancient Rome. Oh wait… the Rome that transitioned from a popular republic to an autocratic empire? Yes, the very same.

Forty years…

Hungary, Personal No Responses »

May 022019

I meant to post this yesterday, but I didn’t have the time. Besides, it is not something you post without permission from the other party involved. The other party being my beloved wife Ildiko, that is.

You see, yesterday marked the 40th anniversary of us meeting, on a cloudy, rainy May 1 in the town of Győr, Hungary, where we were both attending a national high school chemistry competition.

And it so happened that a short while (maybe just a few weeks?) later, our high school class had a day trip to the fine town of Pécs, Ildiko’s hometown, so she and I had a chance to meet again. And one of my friends had a Polaroid camera:

Darn, I was so much thinner than today.

Ildiko, on the other hand, looks just as beautiful now as she did on that late spring day in 1979.

Notre-Dame

Culture, History, Religion No Responses »

Apr 152019

I have no words.

Patreon

Internet, Personal, Physics No Responses »

Apr 092019

My research is unsupported. That is to say, with the exception of a few conference invitations when my travel costs were covered, I never received a penny for my research on the Pioneer Anomaly and my other research efforts.

Which is fine, I do it for fun after all. Still, in this day and age of crowdfunding, I couldn’t say no to the possibility that others, who find my efforts valuable, might choose to contribute.

Hence my launching of a Patreon page. I hope it is well-received. I have zero experience with crowdfunding, so this really is a first for me. Wish me luck.

Mourning the loss of Google+

Internet, Personal No Responses »

Apr 012019

Dear Google+: It was a pleasure and a privilege knowing you. This will be my last blog post that will be shared on Google+.

Sure, I used you mostly just to view cute cats (Caturday, Cats of Google) and occasionally, interesting news on Linux and Android, but still.

It was on Google+ that I earned my most famous follower. I never bragged about it as quite probably it was just a staff mistake, but even so, it was nice to count you among my friends, Mr. Obama.

And the site had so much potential. The potential to become a more intelligent, less gossipy social network, dominated by meaningful discussion, not fake news.

Oh well. It was nice while it lasted. All good things do come to an end eventually. Thanks for the memories.

Blasted PHP 7 and MySQL

Computer Security, Personal, Programming No Responses »

Mar 302019

Content management software that I use, Joomla! and WordPress in particular, have been complaining for a while now that the PHP version that runs on my servers is outdated and potentially unsecure. Not exactly true, as PHP 5.4 remains part of the official Red Hat/CentOS release, but it would certainly be prudent for me to attempt an upgrade.

I tried to do just that last night, on a test server. And it was a miserable failure, a waste of many hours that I will never get back, to make no mention of the heightened risk of cardiovascular disease due to my elevated blood pressure caused by all that frustration.

The relatively easy part? PHP 7 complaining that its just-in-time compilation feature ran out of memory. Easy-peasy, I can disable JIT. Check.

But then: several of my Joomla! sites refused to run, with a cryptic and ultimately meaningless error message and nothing in the logs. And at least one Joomla! site just got itself into an infinite redirect loop. But why?

I tried many things. I kept looking for answers on Google. Nothing worked. Eventually I took two of my Joomla! sites that are very similar in nature, and began comparing their settings, side-by-side. One worked, the other didn’t. Why?

I then stumbled upon a custom Joomla! module, one that I wrote to support some ads that appear on my sites. This module was installed on the site that failed, but not used on the other. I disabled the module and, presto, the site was working with PHP 7. I re-enabled the module and the site was dead again. So… why?

Well, the module contains some PHP code. Which, after some preamble that allows it to connect to the internal data structures of Joomla!, begins the real work by accessing the MySQL database that contains the actual ads:

$conn = mysql_connect("localhost");
mysql_select_db("www");
$res = mysql_query("SELECT PAGEID,ADTEXT FROM ...

Oops.

You see, mysql_ calls have been deprecated and REMOVED from PHP starting with version 7.

And I have hundreds, if not thousands of lines of legacy code* (including, e.g., my calculator museum at rskey.org) that rely on this old library.

So I guess that PHP 7 upgrade will have to wait a while longer. Looks like I have no choice but to rewrite the affected pieces of code everywhere, as there is no other long-term solution. (Even if I find a third-party PHP plugin that re-enables mysql_ codes, how long will that continue to work? How reliable will it be?)

What a muckup. Grumble. And I do have other work to do.

Those who don’t remember history…

History, Politics No Responses »

Mar 292019

Listening to Donald Trump again and again reminds me of the late days of the Roman Republic, notably Octavius, also known as Augustus, first Roman emperor.

Here are a few interesting, especially relevant passages from the Wikipedia article on Augustus.

Recall the debate about whether or not a sitting president can be indicted? “Octavian had the Senate grant him, his wife, and his sister tribunal immunity.”

Or how about the funding of Trump’s wall? “Octavian made another bold move in 44 BC when, without official permission, he appropriated the annual tribute that had been sent from Rome’s Near Eastern province to Italy.”

Last but not least, all those concerns about the “deep state”, and all those uncanny conspiracy theories promoted mostly by folks who are the most likely to be hurt by, and least likely to benefit from Trump’s authoritarian ambitions: “Many of the political subtleties […] seem to have evaded the comprehension of the Plebeian class, who were Augustus’ greatest supporters and clientele. This caused them to insist upon Augustus’ participation in imperial affairs from time to time. Augustus failed to stand for election as consul in 22 BC, and fears arose once again that he was being forced from power by the aristocratic Senate.”

So there you have it: when the people believe that a dictator protects them against their own representative government, when the people believe that the dictator is above the law, when the people believe that the dictator has legitimate powers to appropriate public funds, democracy is under an existential threat.

Alcohol hypocrisy

Local Ottawa, Politics No Responses »

Mar 292019

Today in the morning news, I heard about an Ottawa bartender was is about to stand trial for criminal negligence because two years ago, some young hockey players who got drunk at her bar ended up dead in a tragic car accident.

Later in the same newscast, I heard about plans by the Ontario government to start selling alcoholic beverages in more supermarkets, big box stores, and convenience stores.

In exactly what insane asylum do these two news items in the same newscast make any sense?

On the one hand, dragging a bartender, one who probably never earned much over minimum wage, to criminal court with the very real prospect of a prison term; on the other hand, making it easier for people to obtain one of the most potent psychoactive drugs known to humanity? Because, you know, the bartender is responsible for what her patrons do after they leave the establishment, but the provincial government bears no responsibility at all for making alcohol more readily available?

The mind boggles.

Sexually explicit Facebook friend requests

Computer Security, Personal No Responses »

Mar 282019

Even as Facebook is battling white supremacism and fighting accusations of racial profiling, there is more nonsense going on.

In the past few days, I received several Facebook requests from accounts purportedly owned by young women, whose profiles contain sexually explicit, rather pornographic images and videos.

Here is one of the mildest ones (the majority of the images in this and other accounts from which I received friend requests were far, far more explicit in nature, including images depicting intercourse):

I do not wish to be a prude here; I am, after all, a middle aged male in relatively good health, and certainly not immune to, ahem, shall we say, visually stimulating images (though I admit I was never a fan of hard-core pornography. Not my cup of tea.)

But these Facebook accounts are obviously not accounts owned by bona fide young women trying to seduce older, happily married males like myself. They are probably overweight middle-aged male scam artists doing their shady business from their parents’ basements. Or worse yet, organized crime operating out of shady boiler rooms somewhere in Eastern Europe or Asia.

Thanks but no thanks. I have presently no desire to break my marital vow, but even if I did, there are better, safer ways.

As for these friend requests, I just block them and report the accounts to Facebook.

One down, two more to go…

History, Politics No Responses »

Mar 272019

It was just three days ago that I boldly predicted that either after a successful, orderly Brexit or a cancellation of the Article 50 letter, Theresa May will resign. This prediction just came true, with the announcement that this is indeed Theresa May’s intent.

Here I am, hoping that the rest of my predictions also come true: that there will now be an orderly process one way or another, and that over time, people will come to recognize her efforts to make it happen.

Personalized music

Cybernetics, Music, Programming No Responses »

Mar 252019

The other day, I started listening to Google Music’s personalized music stream.

I am suitably impressed. The AI is… uncanny.

Sure, it picked songs that I expressed a preference for, such as songs from the golden age of radio that I happen to enjoy. But as I continue listening, it is presenting an increasingly eclectic, enjoyable selection. Some of it is quite new, from artists I never heard about, yet… it’s music I like. For some reason (maybe because I am in Canada? Or because it knows that I am trying to improve my French? Or was it a preference I once expressed for Édith Piaf?) it started presenting a whole bunch of French music, and again… some of it is quite likable. And now that I purposefully sought out a few classical composers, the AI realized that it can throw classical pieces at me as well, which is how I am suddenly listening to Schubert’s Ave Maria.

As a matter of fact, the eclectic choices made by Google’s AI remind me of two radio programs from the CBC’s past, long gone, long forgotten by most: Juergen Goth’s Disc Drive and Laurie Brown’s The Signal. Both these shows introduced me to music from excellent artists that I would otherwise never have heard about.

And now Google’s AI is doing the same thing.

I am also getting the sense that the more I listen, the bolder the AI becomes as it makes its choices. Instead of confining me to a bubble of musical genres of my own making, it is venturing farther and farther away from my presumed comfort zone.

Which is quite impressive. But also leaves me wondering how long before our machine overlords finally decide to take over.

Extinction level event

History, Politics No Responses »

Mar 252019

The other day, before the Mueller report came out, I described the political present throughout the Western world by comparing it to “history flashback” chapters in dystopian science-fiction novels.

But then, the next day, I saw someone present a Venn-diagram not unlike this one:

Apparently I am not the only one with this concern.

Then the Mueller report came, exonerating Trump at least on the issue of collusion. Not unexpected. I may have hoped for a different outcome but really, it wasn’t in the cards. Trump wasn’t conspiring to become president: he was conspiring to get a Trump Tower built in Moscow. He is not Putin’s co-conspirator; he’s at best Putin’s pawn.

But that’s the least of America’s problems, when the US Senate is increasingly behaving like another senate two millennia ago: the Senate of the Roman Republic, when it (for various reasons, all having to do with the politics of the day) became the enabler of Gaius Julius Caesar and his successor, Gaius Octavius Thurinus.

As the US Senate basically let Trump get away with usurping their power, allocating funds for his phony wall emergency, a line in the sand was crossed. This is precisely the Roman prescription: Using a variety of real or phony emergencies, the leader of the Republic first acquires and then holds on to an ever increasing number of emergency powers, until one day, he becomes emperor in all but name. Even if he is then assassinated, the new reality becomes normalized, and one of his successors will eventually declare himself ruler for life. The process may take decades, but the outcome is the end of democracy.

Any American who thinks it “cannot happen here” needs to be mindful of the fact that Romans were just as proud of their republican traditions as Americans today.

The crisis goes beyond the United States. Liberal democracy is in trouble throughout the Western world. Take Europe: Brexit, the rise of the far-right on the western side of the continent, the emergence of semi-authoritarian governments on the eastern flanks make one wonder if Europe can both remain united and retain its liberal democratic values.

Meanwhile, back in the United States, Democrats are drawing precisely the wrong lesson. Instead of working to preserve rational, fact-based governance, they decided that their problem has been all along that they are not ideological enough! And sadly, opposition forces throughout the Western world are following suit.

But ideology will not solve rising inequality, the stagnation of the middle class, the re-emergence of blatant racism. Excessive political correctness is no solution either. The antidote to rigid ideology is not more, or more rigid, ideology.

Recently I saw someone on Facebook describe the state that the world is in as an “extinction level event” threatening liberal democracy. And that’s precisely what I fear.

It’s cold in Toronto, but…

Television, Weather and Climate No Responses »

Mar 242019

Yes, it can get cold in Toronto. Usually not as cold as Ottawa, but winters can still be pretty brutal.

But this brutal, this late in the season?

Yes, according to The Weather Network earlier this morning, the temperature overnight will plummet to -59 degrees Centigrade next weekend.

Yikes. Where is global warming when we need it?

Bankrupt British politics

History, Politics No Responses »

Mar 242019

Watching the endgame unfold in London and Brussels, I have come to the conclusion that Brexit, first and foremost, represents a complete bankruptcy of British politics. (Yes, I know I am not the only one who had this revelation.)

Think about it. The main complaint about Europe is that it is an unwieldy, inflexible bureaucracy, an ungovernable assembly of 28 (soon 27) sovereign nations with conflicting interests. And the EU has its own internal problems, including the rise of the far right, increasingly authoritarian regimes on its eastern flank, and a weakened political center.

Yet throughout the Brexit process, it was Europe that was able to present a unified front. It was Europe who responded to increasingly desperate British requests with flexibility. And each and every time, Europe showed decisiveness, even when the unanimity of 27 nations was required.

Britain, on the other hand, was unable to make a deal with itself. Never mind that, even Britain’s major political parties demonstrated an utter inability to come to terms with themselves. Both the Tories and Labour remain split, and as a result, Britain has a dysfunctional Parliament: No option has the support of a majority of MPs, but they delegitimized their own inability to act, too, when they voted against a “hard” Brexit.

If this is not a complete bankruptcy of the British political system, I don’t know what it is.

Theresa May may still pull off a miracle. She may yet convince MPs to vote for an orderly Brexit. Or perhaps she will get them to vote to withdraw the Article 50 letter. After all, already more than five million (as of the evening of March 24) Britons signed an online petition to revoke the Article 50 letter and remain in the EU.

Either way, if May pulls off either an orderly Brexit or a cancellation, I suspect that she will promptly resign as prime minister, and quite possibly retire from politics. And for many years, she will be despised by millions and loved by few.

But over the years, she will be recognized as one of the greatest statesmen in British history; the captain who never left the bridge of a sinking ship and (depending on the outcome) either saved the ship against all odds, or at least ensured all the survivors’ safety.

I am hoping, however, that those who created this crisis for no reason other than reckless political adventurism and a sociopath’s willingness to exploit the worst demons of racism and xenophobia in British society will be ultimately remembered among the most reviled figures of modern British history, listed on the same pages as, say, Oswald Mosley.

Michael Cohen and Trump’s campaign

Politics No Responses »

Mar 022019

Almost forgot: There was some incredulity when Michael Cohen mentioned, during his Congressional appearance on Wednesday, that he “started” Trump’s campaign. In response, Cohen mentioned the Web site, shouldtrumprun.org, which he claimed to have created.

It is true. Here is the earliest capture of this site from archive.org (I highlighted the date and Cohen’s name):

Unfortunately for Trump, it appears that Cohen and his associates stopped paying for shouldtrumprun.org, and it has now been taken over by others, who quickly turned it into a parody site. Lots of fun memes there, worth checking it out.

Forget civil war; worry about the coming imperial presidency

Politics No Responses »

Mar 012019

There is a Washington Post article today about the frightening possibility of a new Civil War in the United States.

But this is not new. You could hear such talk from certain conservative circles from years. Their view is that the US already reached the point of no return.

By way of example, here is a quote from an e-mail from an American friend that I received a few months ago: “We are already in […] low grade civil war […] but it is definitely hot. […] If we are really lucky, you will only randomly hear about ‘right wing death squads.’ More likely, it will be total war.”

Though they blame it on the other side, they basically view a government that accepts viewpoints other than their own as corrupt and broken beyond repair. They are not interested in pluralism or fact-based governance. (Just look at the ban on gun-related research funding by the Federal Government, or the politicization of climate change, with ideology put far ahead of the facts.) In other words, these “patriotic Americans” essentially are declaring war on a democratic, republican form of government because it allows viewpoints other than theirs.

And Democrats are quickly sliding down that same slope nowadays, as they elect increasingly outspoken ideologues with increasingly militant attitudes. The folks who rejected Hillary and were proud to support Bernie (with his unrealistic plans that make no fiscal sense, placing ideology ahead of the facts) are increasingly the folks who determine policy.

Still, I don’t think that the result will be civil war, even if there will be violence in the future. Rather, I fear that it will be a rapid erosion of republican values in favor of an imperial presidency, following the example set by the dying days of the Roman Republic over two millennia ago. Blame, in part, the primary system that supports the ultrapartisan polarization of American society; and the switch from a largely unelected Senate to one that is elected, subject to the politics of the day, and thus unable to fulfill the function that Canada’s Founding Fathers once called “the chamber of sober second thought”.

Trump’s emergency declaration is a dramatic step in this direction. All indications are that he will get away with it. The Senate is unwilling to stop him. The courts might, but they will likely recognize (technically correctly) that it is not up to the courts but up to the President to decide what constitutes an emergency.

And mark my words: I think we will see at least 1-2 more emergency declarations under Trump. And by the time his successor (Democrat or Republican, doesn’t matter) occupies the White House, such emergency declarations will have been normalized, as a standard form of politics. And supporters will cheer whenever a declaration is made in favor of policies they approve.

The next step will take place when a particularly uppity congress shoots one such declaration down with a veto-proof majority. The result of that may very well be a constitutional change that defangs the Senate; e.g., requiring unanimous consent for a veto override.

And when that happens, the transition will have completed in all but name: the President will be Emperor who can rule by decree, with neither Congress nor the Courts serving as effective counterbalance anymore. One more change, elimination of term limits, and there: you will have emperors. And as someone remarked, Trump didn’t even have to spend money on an accelerant to stage a Reichstag fire.

I never thought I would live to see the day when all this turns from speculative fiction into tangible possibility, but here we are: we may yet see a de facto Emperor of America within my lifetime.

Not something I look forward to see, mind you.

Talented cartoonist (or is it deluded?)

Art, Humor, Personal No Responses »

Feb 242019

In case anyone had doubts, allow me to dispel them by demonstrating just what a talented cartoonist I am:

There. Isn’t that a beautiful qat?

What do you do when confronted with racism by those closest to you?

Personal, Politics No Responses »

Feb 112019

What do you do when you are confronted with racism when you least expect it?

No, not the overt kind. That would be easy. Obviously if someone used the N-word to descibe a black person, the K-word to describe a Jew, or similar slurs in my presence, I would tell them in no uncertain terms to get out of my face with that caveman racist attitude.

But what if it is something more subtle, more insidious?

Like, when a close friend explains to you how it is not racism but bad experience that turned them suspicious towards black people. That they used to be color-blind until they were defrauded or otherwise mistreated by black people one too many times.

At first, you think there is hope. You have known this person for a long time. The negative experiences are undoubtedly real. And you know that your friend is, deep inside, a good person. A rational person who can be convinced not to generalize from a few negative experiences and condemn an entire population of human beings on account of the color of their skin. To judge people by their character instead.

You bring up historical examples, pro and con. People from oppressed minorities who demonstrated the strength of their character by the dignified way with which they stood up to oppression, such as Frederick Douglass or Nelson Mandela. Or people who used twisted logic and a false sense of victimhood to justify how they turned from self-professed race-blind innocents into vitriolic racists, such as Adolf Hitler during his years in Vienna.

But then something snaps in you. There comes the moment of realization. It is all pointless. Your moral outrage is ignored or worse, filed away as a hysterical outburst of excessive political correctness, for which you should probably apologize. Your arguments are dismissed because, you know, you were lucky and avoided all those negative experiences and you can afford to remain an idealist unlike your more experienced, more streetwise friend. You try to explain to your friend that adopting a racist attitude means being part of the problem, not part of the solution. To no avail; in fact, you learn that the only reason your friend seemed to favor politicians of a more liberal persuasion is the fear of losing personal benefits. When it comes to race, their views align with the worst.

And it becomes clear at one point that your friend’s dream life is in an affluent, whites-only gated community.

What do you do then? Pretend you haven’t heard anything? Throw away decades of friendship? Or maybe take the easy way out and just turn into a card-carrying Nazi yourself?

I could, of course. I am a tall, middle-aged, white male with (as far as I know) no questionable Mischlingsblut in my veins. I even had some military training. I could click my heels, raise my arm and shout, Sieg Heil!, faster than most semi-literate, drunken Nazis. Jawohl, mein Führer, wir verteidigen die weiße Rasse. And tall as I am, I would look especially impressive in a KKK hood. And then I would have no problems with racism anymore. I could go on and just despise and distrust blacks, Muslims (especially black Muslims, I guess) Asians, Native Americans, Jews, you name it. Anyone who is different from my superior race. Any lesser untermensch. Including, quite possibly, my dear friend.

Trouble is, I still prefer to see a human being, not a monster, staring back at me from the mirror when I brush my teeth in the morning.

So no. Not even from my best, dearest friends. No matter how well-justified they feel in their views. No matter how strongly they feel that they are the victims here.

No, my white friends. You are no more victims of visible minorities than Hitler was a victim of Jews.

And the time to speak up is now. Even if my friends think that I went berserk with political correctness.

No matter how close a friend or family member you are: If you think your racist views are justified, please just bugger out of my sight.

I like to think of myself as a low-maintenance friend. You don’t have to come over to fix my computer. I don’t ask you to help me move. I don’t demand to be invited to your parties (in fact, I prefer not to be invited at all, being the introvert that I am.) I don’t show up, unannounced, to eat your food, crash on your couch, or borrow your car.

But there is one price for my friendship and that, you must pay. No, not to give lip service to some politically correct doctrine. No, I am not asking you to go all kumbaya with people with whom you feel uncomfortable. I am not asking you to donate all your wealth to people you distrust. The price is that I ask you to think. To imagine what it would be like if it was you who lived in a society that judged you by what others have done, simply because you share a visible characteristic with them. To have no place to go, because prejudice follows you everywhere. To be treated with suspicion at all times.

And then think about your duty as a human being to rise above petty, everyday grievances. To consider, at the very least, the possibility that you, too, bear some responsibility to not make our society worse. And don’t dig your heels in deeper. Don’t wallow in your sense of victimhood. Don’t come up with new justifications for your prejudice.

And for heaven’s sake, do not make your racism worse by calling me a blind idiot. Do not insult my intelligence with the cheapest racist excuse I ever heard, the last refuge of the intellectually incompetent hatemongerer: Do not tell me that I don’t see it the way you do because I have not experienced just how bad it really is where you live. Even if I am inexperienced in these matters, there are plenty of people in your neck of the woods who are not following you down that racist rabbit’s hole.

I am not asking much. I am not asking you to change. I am just asking you to think. And to stop justifying the morally and intellectually unjustifiable. Do the bidding of your inner demons if you must; but don’t try to pretend that they are angels. Not to me, not to yourself.

Can’t do it? Too bad. I will not apologize for this. I will not ask for your forgiveness. This is the price of my friendship. In this day and age, when I am confronted with racism, especially from people closest to my heart, there is one thing I cannot to: I just can’t not speak up.

Failed TV repair

Electronics, Personal No Responses »

Feb 032019

I have been fancying myself as a TV repairman (I know, I know, a completely useless skill set in 2019) ever since I successfully repaired a 25-year old SANYO television set. I figured I would repeat that success with an even older television: my first television set in Canada, a 1986 Mitsubishi CS-1454C portable television. (By “portable”, they mean it weighs less than about 25 pounds and it can be hauled from one room to another without the use of a forklift.)

The problem seemed simple enough: The TV set refused to turn on. Obviously, I expected a faulty power supply or something similar, maybe due to an aging capacitor somewhere.

Alas, nope. The power supply was doing what it was supposed to do, supplying low voltage power to all the relevant parts, including the integrated circuit that was responsible for activating the relay that, in turn, would have turned on the set. But the relay never got the signal that would have turned it on. The transistor that controlled the relay never got the signal either.

Why? Well, the signal to that transistor comes from a microchip:

It comes from pin 28 of a chip labeled μPD-1709CT. What is this chip? Well, it turns out that it is, in fact, a 4-bit microcontroller with about 1.5 kilowords of ROM, factory programmed by the chip manufacturer (NEC) with code supplied by the customer.

I checked, and the microcontroller has everything. It has power, it has a clock signal. It scans the front panel keypad with beautiful, nice square waves on my oscilloscope. The one thing it does not do is outputting a signal on pin 28 when I press the Power button; which, in turn, would have provided a signal for the relay, which in turn would have energized the rest of the unit.

I am therefore forced to conclude that this television is not repairable. Even if I found a replacement chip, chances are that unless it is from the same unit, its program code would be incompatible. (The same family of chips has been used, e.g., in car entertainment systems.) Since I doubt that the manufacturer still provides support for a unit that was sold 32 years ago, the only possible source for a replacement chip would be another, cannibalized television set.

And, of course, the thing is just not worth the effort. An old style, analog television set with a CRT? Years older than half the human beings presently alive on Earth? Still, it was worth a try… I like fiddling with these old devices. Although I much prefer success stories, of course.

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