Doz Television Workshop

Doz Television Workshop

Repairing retro electronics since before it was retro...

Aroma amplifier

Aroma amplifier

Ferguson TX9 Movie Star 3790

Ferguson TX9 Movie Star 3790

Luxman SQ202 part 2

Luxman SQ202 part 2

Luxman SQ202 repair

Luxman SQ202 repair

Retrotech 2024

Retrotech 2024

Repairing Henry

Repairing Henry

Panasonic TC-381G Fail

Panasonic TC-381G Fail

Пікірлер

  • @zhaohaigaogu7821
    @zhaohaigaogu782121 сағат бұрын

    とても役に立ちます。終わりまでは大変素晴らしい動画です。お疲れ様でした。👍

  • @AndyDoz
    @AndyDoz20 сағат бұрын

    Thank you for your wonderful comments

  • @zhaohaigaogu7821
    @zhaohaigaogu782123 сағат бұрын

    はじめまして、失礼致します。最後まで見ました。私のことは伝わってくれたと思います。ありがとうございました。大事になさってください。😊👍

  • @AndyDoz
    @AndyDoz22 сағат бұрын

    Thank you 🙏

  • @adamdavies163
    @adamdavies163Күн бұрын

    Perhaps you can answer an age old question? I used to know somebody that had the same Panasonic TV. He used to insist that it had 4 guns RGB + Yellow, the logo showing 4 colours and name Quintrix seems to perpetuate the idea. I assume that the set does NOT have 4 guns, so what was the 'Quintrix' all about?

  • @AndyDoz
    @AndyDozКүн бұрын

    Marketing guff. Sony (who actually did have something a bit different) had Trinitron, Sharp had Linytron, Mitsubishi had Blue and later black Diamond (again something a little bit different). All trying to get a USP

  • @loui425
    @loui4254 күн бұрын

    Hi mate been trying to get MTK952 TX & MRK980 RX on Wisy manager. All on same subnet as pc and I can ping them but they weren't showing up automatically. Turning off the master firewall settings on the pc solves it but not ideal for long term. Can you advise how I enable them through the firewall while keeping the master on to protect the pc. Cheers

  • @AndyDoz
    @AndyDoz4 күн бұрын

    Yikes. It's been 2 years since I worked with Wisycom. Things change fast, give Raycom a ring.

  • @alishatruman
    @alishatruman4 күн бұрын

    Wait, I didn't know about the stereo output jack and the matching amp! Thanks for that!

  • @alishatruman
    @alishatruman4 күн бұрын

    I have noticed our organ seems to go out of tune every few months. Very picky.

  • @AndyDoz
    @AndyDoz4 күн бұрын

    The oscillators should be stable. Check those caps in the PSU under the bottom, and the caps on the master oscillator.

  • @alishatruman
    @alishatruman4 күн бұрын

    @@AndyDoz Will do right now. Is it easy to explain the location of the master oscillator? I thought the temp was changing my tuning...lololollll

  • @AndyDoz
    @AndyDoz4 күн бұрын

    @@alishatruman study the video. It's on the top, far left from the front. I had to fit a surface mount cap in there, as the original is long since gone.

  • @alishatruman
    @alishatruman4 күн бұрын

    @@AndyDoz Brilliant Andy! So the master oscillator per tone generator board or of the out of tune board...every in my case

  • @killerkirill1
    @killerkirill15 күн бұрын

    Love the old-school diode-chain "buck conversion"

  • @AndyDoz
    @AndyDoz4 күн бұрын

    K.I.S.S. applies!

  • @Bleats_Sinodai
    @Bleats_Sinodai6 күн бұрын

    I wonder if it'd be possible to use a system like how the triggers in some modern videogame controllers work, where they have an analog travel until you hit the switch at the end, as a way to detect false inputs from tremors.

  • @AndyDoz
    @AndyDoz6 күн бұрын

    The trouble is, I think I'd be bouncing on the switch....

  • @WulfWehrle
    @WulfWehrle6 күн бұрын

    Thank you, Doz!

  • @cocusar
    @cocusar6 күн бұрын

    what a weird voltage requirement, considering as you've said that radio equipment runs at lead acid battery voltages. I saw the "mistake", God I hate doing that myself, and butchering the connector all up. I think a small 3d model on the manuals would clear up this confusion for good.

  • @AndyDoz
    @AndyDoz6 күн бұрын

    Weird and ambiguous! The worst!

  • @markhodgson2348
    @markhodgson23486 күн бұрын

    i hope you can get your tremors sorted out I really enjoy your content

  • @markhodgson2348
    @markhodgson23486 күн бұрын

    Layden jar 🫙

  • @AndyDoz
    @AndyDoz6 күн бұрын

    ?

  • @nigehomer9744
    @nigehomer974411 күн бұрын

    Cool tune!

  • @anthonysunay7916
    @anthonysunay791612 күн бұрын

    Hi Doz do you do this full time? I ask this as I was in the trade for about 25 years

  • @AndyDoz
    @AndyDoz12 күн бұрын

    Not anymore. I gave up in consumer electronics back in the mid 00's... moved to broadcast, and I now design flight electronics for space craft.

  • @Bleats_Sinodai
    @Bleats_Sinodai13 күн бұрын

    Good result 👍

  • @alancawley8810
    @alancawley881013 күн бұрын

    I new it was DoZ - the song is about him and it’s wacky and he doesn’t get a copyright strike! Multi talented electronics wizard - musician - video producer - and all round creative. 4 big YES’s

  • @AndyDoz
    @AndyDoz13 күн бұрын

    Steady on !

  • @8-bitbitsa821
    @8-bitbitsa82113 күн бұрын

    What’s the track playing ? Sounds like Heaven 17 ?

  • @AndyDoz
    @AndyDoz13 күн бұрын

    It's a bit of me, and a bit of AI

  • @adamdavies163
    @adamdavies16313 күн бұрын

    I wonder if that transistor is so that the unit can shut itself down when the battery is low to protect the Lithium pack?

  • @AndyDoz
    @AndyDoz13 күн бұрын

    I wondered that, but it's not, the BMS (such as it is, it's 2S with no balance wire) handles under volts. I think it may have originally had some sort of remote control or standby catered for in its design.

  • @adamdavies163
    @adamdavies16313 күн бұрын

    @@AndyDoz Posssibly, maybe the same board is used in another unit.

  • @AndyDoz
    @AndyDoz13 күн бұрын

    @@adamdavies163 the other thought I had, was maybe a noise gate, to shut the amp off until a signal is used again. The undervolt doesn't make sense, as the blue tooth & preamp etc. is still on.

  • @adamdavies163
    @adamdavies16313 күн бұрын

    @@AndyDoz Maybe, or to protect the amp from overdrive situations. As it happens it just acted like an unintentional fuse.

  • @kevindewinter8235
    @kevindewinter823514 күн бұрын

    Mine came with not useable hardboard Cnc puzzel. Is the firmware upgradeable?

  • @AndyDoz
    @AndyDoz14 күн бұрын

    It did take some working out! I've not attempted, nor needed to update the firmware.

  • @piynubbunyip
    @piynubbunyip17 күн бұрын

    excuse the invasion of privacy but you are a bit shaky - Parkinson's is treatable if discovered early. Sorry if you are just wobbly. Worth it though.

  • @AndyDoz
    @AndyDoz17 күн бұрын

    Thanks for the concern. I've suffered since I was 14, but it is getting worse. I have consulted my doctor recently, and I have an appointment with a neurologist in a few months. It's a huge frustration and embarrassment. Thanks again.

  • @piynubbunyip
    @piynubbunyip16 күн бұрын

    @@AndyDoz Ah, sorry to hear. Glad you are looking into it and don't feel down, your hands have done so much more than most.

  • @StewBrew-y7t
    @StewBrew-y7t19 күн бұрын

    If I had enough of the big ones like 6000 puffs I think they have 18650s I wonder if I had 30 or 40 could I make a power brick for a bike

  • @stevesje71
    @stevesje7119 күн бұрын

    Great video. It’s always worth smearing some EHT silicon grease inside the cap only a light coating to stop tracking in the future.

  • @AndyDoz
    @AndyDoz19 күн бұрын

    Certainly with those horrible stiff caps like the Philips kt3 triplers. This was still super flexible., and thankfully nobody uses those awful portable gas heaters that used to fill homes with condensation!

  • @triodehexode
    @triodehexode20 күн бұрын

    Philip's dry joints go back to their PCB transistor radios in the 60s not to sure why their production process was flawed in this way.

  • @tonyboing2312
    @tonyboing231220 күн бұрын

    Lovely little set. I remember the dry joints well. My old boss would tell me off for going around the boards with my soldering iron. If the joints were done well, you rarely saw the set back. Maybe that's why he was so gruff, lol. We also always had a stock of NICADs for them. I do remember a few flat tubes on these in the 90's. BTW I love the little vigniette at the end...... It's nice to see a little bit of fun :) Carry on the good work :)

  • @AndyDoz
    @AndyDoz20 күн бұрын

    My late friend Roger always used to say "Don't take life too seriously, you'll never get out alive"

  • @tonyboing2312
    @tonyboing231220 күн бұрын

    @@AndyDoz Wise words.... My old boss Tom was of that frame of mind and relentlessly wound me up because I was so uptight and serious as a young man.... Thank heavens I relaxed a bit!!

  • @michaelwaite6725
    @michaelwaite672520 күн бұрын

    6:22 6:23 That's a 14" 37cm tube set not a 16" which would be 42cm as denoted by the model details also the 16" had hand holds in the sides of the cabinet . Looks in nice condition just like I remember unboxing them when new in the 80s. CTX e = European CTXs =Singapore I think

  • @AndyDoz
    @AndyDoz20 күн бұрын

    Oh yeah, weird how it looks bigger than the 14" TX9 from last week

  • @basgib
    @basgib20 күн бұрын

    I've a few of them sets from portable to 20in

  • @whitesapphire5865
    @whitesapphire586520 күн бұрын

    Oh, by the way...... Try drinking coffee instead, the dust isn't as noticeable!🤢🤦😁😬

  • @whitesapphire5865
    @whitesapphire586520 күн бұрын

    So, did that come out after the 16" portable that used the KT3 chassis? The styling looks older than the KT3, but I bought my first KT3 in about 1981 - brand spanking new from Valance's...... Do you remember them? I should still have a couple of KT3s kicking about somewhere - one of granddad's favourites, and I'm pretty sure I've had more than one or two of these ones pass through my hands, trying to earn a shilling or two to ease my passage through university.

  • @WulfWehrle
    @WulfWehrle20 күн бұрын

    Nice set! Dust in the tea? No bueno!

  • @Bus2000
    @Bus200020 күн бұрын

    It has a Philips CTX Chassis they where very good

  • @kevb1816
    @kevb181620 күн бұрын

    Nice clean set 👍

  • @glowytheglowbug
    @glowytheglowbug20 күн бұрын

    ooh thats a nice chunky set

  • @stevesje71
    @stevesje7120 күн бұрын

    I’d be interested in purchase, when will you be selling it

  • @AndyDoz
    @AndyDoz20 күн бұрын

    I advertised it on Facebook. It sold last week, sorry

  • @adamdavies163
    @adamdavies16320 күн бұрын

    That looks familiar, although my recollection was that ours was the 14" version. Philips / Pye made some excellent sets back then.

  • @k-sell4065
    @k-sell406523 күн бұрын

    New sub here 😃

  • @AndyDoz
    @AndyDoz22 күн бұрын

    Welcome!!

  • @k-sell4065
    @k-sell406523 күн бұрын

    Great video 😊

  • @AndyDoz
    @AndyDoz22 күн бұрын

    Thank you. Hope you enjoy the videos.

  • @k-sell4065
    @k-sell406523 күн бұрын

    Man you are good! It’s amazing how you are doing electronics with shaky hands 😮 I have spurts of shakiness and it’s hard for me to a lot of things. One thing I don’t do when getting like that is not handle any type of glass😂😂😂😂 but it’s all good over the years I’ve learned to adapt 😊

  • @ianedwards468
    @ianedwards46825 күн бұрын

    Hi Andy, great to see one of these on the inside again. No surprise really that it 'just worked' with minimal attention. The TX9 was a great piece of British engineering with sometimes uncharacteristic attention to detail (like the extra support for the chopper trans in the back cover). It meant they really lasted with many soldiering on into the 21st century, probably right up to the digital switchover. You are right about there being a few 22ins versions, mostly budget sets with no remote control. I only ever saw one and remember being surprised on removing the back cover to find a TX9 lurking inside! All the very best, Ian E

  • @AndyDoz
    @AndyDoz25 күн бұрын

    Thanks Ian. Glad you remembered the 22" version too. Was it 90 degree? RCA tube?

  • @ianedwards468
    @ianedwards46824 күн бұрын

    @@AndyDoz It definitely had a 90 degree tube, the depth of the back cover should have made me realise it wasn't a TX10! Can't remember who made the tube, quite possibly it was RCA or otherwise one of the Japanese offerings that were appearing in British sets by the early 80s...

  • @user-mj1ge9wl1g
    @user-mj1ge9wl1g25 күн бұрын

    Hello Andy are you going to do a Part 2 on the 1967 GEC Television? Sandy

  • @AndyDoz
    @AndyDoz25 күн бұрын

    Sadly not. It's gone to its new home. There's a more comprehensive write up on the website. andydoz.blogspot.com/2014/08/gec-2028.html

  • @basgib
    @basgib25 күн бұрын

    I had 2 of them sets. One blew the flyback and the other blew the big white transformer. Didn't have much luck with them

  • @AndyDoz
    @AndyDoz25 күн бұрын

    In all my years, I never saw either transformer fail.

  • @glowytheglowbug
    @glowytheglowbug27 күн бұрын

    awesomeee :DD

  • @tonyboing2312
    @tonyboing231227 күн бұрын

    Hey Andy, Nice to see one of these TX9s again. Little beauty of a set and generally very reliable. On the MK1 ( I can't remember the board number) I recall that one of the causes of fuses shattering intermittently was a zener diode (135v, I think) that would trigger a SCR into shorting across the smoothing cap. It was a fine example of a crowbar circuit! What could happen was that the zener diode would become a little bit too noisy (zeners can be used as white noise generators). If the noise was above a certain level it would fire the SCR, and bang went the fuse! Dry joints under that red cover were common. If a pin was too badly oxidised, I'd remove it and file down to clean copper before resoldering. The degaussing dual posistor would also usually get dry joints because the pins were so thin. Again, removing and filing the pins to clean metal would usually solve it.... So long as the posistor buttons had not cracked or perished! Keep up the good work..... It's great to watch and relive those memories. All the best!!

  • @a4andrei
    @a4andrei27 күн бұрын

    I don't want to appear indiscrete, but may I ask what is the cause of your tremors?

  • @AndyDoz
    @AndyDoz27 күн бұрын

    I've suffered with it for 34 years. It's called a benign tremor, but it's getting worse. I'm now classed as severely impaired. It may well be related to my epilepsy. I've got an appointment with a neurologist, but that won't happen until February

  • @a4andrei
    @a4andrei17 сағат бұрын

    @@AndyDoz Got it! I hope you can keep it under control, and continue to enjoy the things you enjoy! 😊

  • @JeffCooper10538
    @JeffCooper1053827 күн бұрын

    What a classic little set.

  • @PaulStenning
    @PaulStenning27 күн бұрын

    I had a grey/sliver one of those back in the day, bought new as a Christmas or birthday present from my parents. It needed one repair in the guarantee period when it lost horizontal and vertical hold (an IC replacement I believe), then it lasted me many years before another fault in the power supply that was due to a 220k resistor going high. I don’t remember what happened to it in the end but it was probably sold or given away, still working well and giving a great picture. They really were excellent sets and yours is a great example for this.