Panasonic TC-2475 . Vintage TV set.

[@tsd550]

2:47 Serial number appears to be LB-8151272. That indicates: Factory: MELUK (Pentwyn, Cardiff). Assembly line: B Build details: 1’272nd set of the first week of February 1988. The symbol on the front cover of the service manual is the lower case Greek letter Alpha. As previously stated, this model used the Alpha 1w chassis. The ‘w’ denotes this as the 110’ version against the 90’ used in the smaller screen models, (the Alpha 1 chassis made its debut in the truly awful TX1).

[@michaeldranfield7140]

Excellent info , thankyou.

[@radio-ged4626]

When I was a TV engineer back in the early 1980's there was a lot more smokers around. I was a workshop based apprentice and had to clean and service the sets. I remember spraying Ambersil Foam cleaner on them and watching the smoke tar slide down the screen, leaving a brown puddle on the bench. Lovely. They stunk too.

[@tsd550]

10:00 The ‘fusible resistor’ you mentioned was a zero Ohms device in the supply to the frame output chip. It was cheaper than using a normal fuse and could be fitted in production by the robotic ‘pick and place’ machines, along with the majority of the other components. These fuses had a high failure rate in the early models, and this was usually, and not unreasonably blamed on the frame output chip, although that was actually seldom the cause. In fact the cause was usually a left handed person. There was a large (grounded), heat sink that ran front-to-back of the board, roughly in the middle. Tabs formed on the bottom of that heat sink passed through slots in the board and were twisted, by someone on the line, using pliers, so as to keep the heatsink in place as it made its way down the production line. Right beside one of those slots was a copper track on the PCB, which was between the fuse and the frame chip. A left handed person would twist the tab in the opposite direction from a right handed person, and in this case the tab would be twisted over that track. If the tab then penetrated the varnish on the PCB and contacted the copper of the track it would short the track to ground and cause the fuse to fail. This was almost NEVER a solid fault making it very difficult to identify. On later versions of this chassis the tab was still present but was no longer twisted in production, and that measure practically stopped the problem, aside from the few occasions when the chip had actually failed of course.

[@walker55able]

Great work Michael

[@kendom33]

Goodness. Reminds me of a call I had on a set with poor picture. Exactly the same look on the screen. The walls in the lounge were also a dull brown. !! Imagine ehat their lungs were like 😮

[@michaeldranfield7140]

Been in a few houses like that over the years .

[@kjellnilsson1615]

@@michaeldranfield7140 it's reminds me on a Blaupunk tv with toutsh control buttons on the front ! The tv had to get the tv signals reset after a upp dated version delivery !! The tube were more brown than your shoes ! And your fingers stick to the buttons when i toutsh them !! But the tv was working fine!! I prepuse a cleaning of the screen to the owner ,, but he refused thath!! He said,,leave it alone , i dont want it to broke 🤣

[@Dedubya-]

I remember fixing a TV like this, well fixing was to clean the filthy black screen when the customer went out to make some tea and when they returned the they had a lovel bright sharp image again and they over the moon. Those old 80's and 90's Panasonic TVs were so reliable, one of the few TVs that didn't constantly suffer from failed mains switches *cough Ferguson/Tatung cough

[@MikeSmith-sh3ko]

It reminded me of a rental set we had at a customer's house . The chap smoked continuously.I cleaned the tube and a few months on the wife died of lung cancer when it was the chap that smoked. Absolutely tragic

[@Synthematix]

What an awesome video! i LOVED the old panasonic quintrix sets. when working right they had an amazing picture

[@michaeldranfield7140]

My favourite Panasonics where the slightley earlier ones with the 30AX tube

[@Timothycan]

It's amazing how much cigarette tar builds up on things, and how hard it is to clean it off!

[@mrnmrn1]

@@Timothycan What is even more amazing how tough the human body can be. I mean while a lot of smokers die early, I've seen some who lived 80-90 years while smoking 2 packs a day for 60-70 years. Some of them even smoked bare, filterless cigarettes! I can't imagine how their lungs can pick up enough oxigen after such heavy and prolonged abuse.

[@michaeldranfield7140]

It is , it took some removing .

[@michaeldranfield7140]

@@mrnmrn1 June Brown , Dot cotton in eastenders lived to over 90, smoked 2 packs a day by her own admission, I met her once at a barbeque charity event, she was lighting another off the old one !!!

[@Televid4]

Excellent Micheal. Panasonic TC2475 used to remind me of the Grunidig CUC70 having the similar looking scan coils. The models TC2205 and TC2206 were also very good units. I can remember the Panasonic TC2206 that used the CRT tube A56-540X (30AX). This tube was nearly used in all the CRT TVs at the time (Apart from Sony). You had Ferguson and Philips that used it quite a lot for their sets. Philips G11 used the A51-540X (20AX). There used to be a red capacitor in the power supply of the Philips G11 that had to be changed to a blue capacitor which used to save the tube, otherwise if the red cap was still in unit the tube would blow out. This was a error by Philips which was later announced to engineers...

[@michaeldranfield7140]

Yes the TC2205 was a very good set with few faults , I remember them well, I have the replacement caps got the G11 with the loose rivet in stock .

[@markpirateuk]

Wow that is one filthy set, I have repaired a few pub TV's back in the day, always hated that brown sticky gunge from years of exposure to tobacco smoke, the original owner is probably deceased after smoking 60 a day! As a boy I was given a 1950's set because the owner thought the tube had gone, turned out that both the safety glass & CRT face were so filthy from years of smoking & living in a room with an open coal fire, that set had a nice bright picture when properly cleaned 🤣

[@michaeldranfield7140]

I had a plasma set once just like you describe and the complaint was a poor picture and this required removal of the outer safety glass to clean .

[@ukfmcbradioservicingTango21]

Hello Michael. Mr Chippie & I fixed that Samsung TV we discussed with you. I got that N-channel enhanced Mosfet device via AliExpress & it arrived yesterday. The old one & the new one are identical in all markings....and the old one had hardly any heatsink compound on it which didn't impress us.Thanks for your help & input. Richard, G0OJF

[@michaeldranfield7140]

No problem at all Richard, glad I was able to help you .

[@monteceitomoocher]

Nice little set there, if memory serves, at around that time setmakers had to include a certain percentage of British or European parts, hence the Mullard crt and chipset, unfortunately the tubes although very clever didn't last as long as a Japanese equivalent of the time, all that nicotine and tar dirt!, been there, and i can smell it from here!.

[@stephenw2992]

Same in Australia where some sets had euro tubes. I was expecting it to be blurry around the edges at least, if not a lot worse.

[@michaeldranfield7140]

Surprised it didn't kill the LOPT .

[@richardh100]

thanks again another great video and a great looking TV always like the fst TVs😊

[@michaeldranfield7140]

many thanks, more soon .

[@whitesapphire5865]

One day, you might get to see this Panasonic of mine, which looks suspiciously like the one you have there. It's former owners were both smokers, and also enjoyed a coal/log fire, but thanks to this video, I'll have the back off and give it a good cleaning before we taste the leccy juice!

[@michaeldranfield7140]

Going through my service manuals there are a few of these that look cosmetically the same so I should be able to help with a service manual even though I don't have your model number .

[@wawerukamau1260]

My Panasonic Tv (Philips chassis and 110 degrees deflection tube) made in UK served me for over 20 years without any major issues.

[@michaeldranfield7140]

Good sets back then .

[@tsd550]

Can you remember its model number?

[@wawerukamau1260]

@@tsd550 Panasonic Colour TV Matsushita Electric (UK) Ltd Manufactured in UK Model TC-2873URT 220~ 50Hz 125W

[@petervideos8699]

Thank you

[@njm1971nyc]

That would be "Alpha 1W" chassis 🙂 Quite a handsome telly, for Panasonic. More than a passing resemblance to Sony TVs of that era.

[@michaeldranfield7140]

Yes , Alpha rings a bell, many thanks for that .

[@robtitheridge9708]

excellent as allways

[@michaeldranfield7140]

More coming !

[@mrnmrn1]

🚬📺 I would not put this thing in my house, not even in the workshop! Eeww. I have one in similar condition, I repaired it outdoors in the yard, then put it in an outdoors shed for 10 years to ventilate. It is a 14" Beijing color TV. Those Chinese sets are amazingly reliable. Mine was never repaired before (maybe apart from some capacitors replaced), but it has a ton of hours in it. All it needed to work again was a bunch of capacitors and resoldering. If I know this right, these were licensed from Toshiba, earlier ones had Toshiba tube and ICs in them. Mine is later, only the flyback is Japanese in it, the tube is branded either "Sunshine" or "Rainbow", all the ICs and capacitors are Chinese, yet it somehow survived 30 years of use and it still has a good picture.

[@michaeldranfield7140]

Even cheap sets 30 years ago were reliable and well made , we just didn't realise it at the time and the capacitor plague didn't come until something like the millennium .

[@rosscammisola335]

I used to get complaints of myself dirtying the The TV Screen when my TV work coat accidentally touched the screen and cleaned the Nicotine off the screen , hated the stink of it , the Nicotine often corroded all the plastic parts inside the TV especially the Hi Voltage leads and Line output Transformers or Triplers, sometimes even made the Plastic crumble. Sometimes clean the screen to embarrass customers

[@michaeldranfield7140]

Nicotine is very destructive around high voltages due to its capacitive effect, I was surprised the LOPT was ok .

[@German_byte]

I keep hoping to see Michael using his Sanwa analogue meter.

[@michaeldranfield7140]

You will do one day , I guess your a Samwa fan then , I like them , been going a long time .

[@German_byte]

I saw yours on a previous video and so liked the look of it that I scoured the internet for one. I managed to buy one from Japan. It’s a model VS-100. I was wondering if these are actually vintage. The one I bought is brand new.

[@grahamroberts1833]

I honestly wonder if people saw the insides of TVs like this (and in my case computers/games consoles) whether they would stop smoking. It is really surprising how the smell is noticeable when you bring the device into a non-smoking environment.

[@michaeldranfield7140]

This set had such a strange smell, a smokey but perfumed smell .

[@grahamroberts1833]

@@michaeldranfield7140 Yes, I think the tar in the tobacco is sticky, so any air freshener, polish, etc, sticks to it. Horrible.

[@mattsan70]

I knew the lady owner - 40 a day woodbines never moved off the sofa. Smoked a pipe at weekends

[@michaeldranfield7140]

you know this set then !

[@michaeldranfield7140]

Do you know , I have been racking my brain and I once repaired a TV set for a lady that lived in Peakdale that smoked a pipe , surely cant be the same person that owned this set as its many, many years ago .

[@renegeijtenbeek7457]

Nice video. l like you fisrt🎉

[@michaeldranfield7140]

Many thanks for that .

[@kjellnilsson1615]

Smoker tv's is always a nightmare to work on !

[@michaeldranfield7140]

I have seen worse and it can lead to insulation breakdown of the LOPT so all in all this wasn't too bad.

[@mrnmrn1]

I can't imagine how this would look like if it was used in a pub for 30 years...

[@truthreigns7]

Hey Mr. Michael. What are your thoughts on the Panasonic microwaves?

[@michaeldranfield7140]

Depends what age , the old ones were good , newer ones , Hmm

[@truthreigns7]

@@michaeldranfield7140 Okay, i just purchased a brand new one and i purchased a 4 year protection from the seller, so we will see.

[@whitesapphire5865]

@@michaeldranfield7140 Oh dear, don't say that! I've just bought a brand new Panasonic microwave, so new that it's still in its unopened box, waiting for me to find a few minutes to get it out and set up. On the subject of Panasonic inverter boards, I've had eye on both of the ovens that will be donating their boards to you. Still looking out for the little Sharp VHS we mentioned earlier this year.

[@paulsanderson8804]

​​​@@whitesapphire5865 my Panasonic. Inverter microwave is still going 14 yesrs old . Stainless steel. Inside . Was not cheap when bought no repairs on it

[@michaeldranfield7140]

@@whitesapphire5865 Remind me of the sharp model .

[@Synthematix]

What REALLY gets on my nerves is test equipment constantly switching itself off after a few seconds, the current draw for these things is tiny so theres no need for it, my fluke, peak and others that i own are a pain in the backside for this, its annoying! also my flukes test leads are horrendous for tangling up, so i fitted cable braiding to the leads problem solved.

[@richardh100]

Is that a 45 AX picture tube📺

[@michaeldranfield7140]

Yes it is . I have the Mullard promotional video for the 45AX also .

[@drcrusherdata]

this set dates from 1988.

[@michaeldranfield7140]

Correct , another viewer has decoded the serial number and it translates to Feb 1988.

[@mosfettg6857]

🤣 you could have used a plastic scraper on that screen

[@michaeldranfield7140]

Might have been quicker !

[@truthreigns7]

Looks like this might have been in a home of a smoker.

[@michaeldranfield7140]

40 a day by the look of it.

[@truthreigns7]

@@michaeldranfield7140 yes

[@mrnmrn1]

​@@michaeldranfield7140It must smell 'delicious'.

[@jimsimpson1006]

Could it have been in a pub I wonder?

[@mrnmrn1]

@@jimsimpson1006 That's what I thought too, it's possible, but I have a TV in quite a bit worse condition in regards of tar accumulation, and it came from a single, heavy smoker's house.

[@mauanderuk]

Ah smokers choice.

[@mrnmrn1]

🚬 🚬 🚬 Flavour country! 🚬 🚬 🚬

[@michaeldranfield7140]

yes , 40 a day plus ????

[@truthreigns7]

YOu need a mask while working on this unit.

[@michaeldranfield7140]

Hoover did wonders !

[@truthreigns7]

@@michaeldranfield7140 great