Hi Andy I enjoy watching your channel I enjoyed watching you fixing up the TX9 Movie Star TV From 1981.

What a classic little set.

These are fantastic little sets, I was given a silver/grey version a good few years ago, and it just works! I only ever had the back off it just because I wanted to have a look inside it!

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.

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!!

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

2 күн бұрын

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

@ianedwards468

2 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...

Thank you! I was hoping you’d play this music again at the end! Love your work. I’m a PAL and EU TV collector of sorts here in the US.

@AndyDoz

5 күн бұрын

Thank you. Glad you enjoyed it.

Okay.... the ending music is perfect. Love it.

@AndyDoz

5 күн бұрын

Thanks

I love those Fergies. Great picture, excellent sound too. Mine appears to have a few differences to the chassis. Also (probably) from new the horizontal/vertical leads weren't soldered to the yoke connectors, just J-hooked!, no signs of solder at all. Needless to say I soldered them.

@AndyDoz

5 күн бұрын

I did notice when I scrolled passed the front of the manual, it *was* originally fitted with a uPC chroma decoder ... I hadn't imagined it!

fantastic work as always Andy. Really hope you're able to get to the bottom of your tremor, I commend you on how well you cope with yours doing this stuff. I'm battling the GP for a neurologist referral so I'm glad you were able to get one, people don't realise how unbelievably frustrating they can be if nothing else.

@AndyDoz

5 күн бұрын

Thanks Ashley. I've got an appointment in February. It really is so frustrating. Today has been a bad day.

On the later version apart from the 470k resistor there was a low value electrolytic (2uf?) conected to pin 4 of the chip would go open causing the chopper transistor to short on start up. the big transformer on the eary sets was a comutator transformer or so i was told.

@AndyDoz

5 күн бұрын

You could well be right.

awesomeee :DD

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

3 күн бұрын

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

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

@AndyDoz

5 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

Hiya Doz "Andy?" Can you possibly give some closure/help on this14" telly? Back in the day the small company I worked for bought a load (about twenty) of these in from Ferguson as part of a larger order, as you say they were quite reliable, however we had at least three that suffered from a common fault that developed within 2 months, the symptom was similar to that of a very soft tube, all three presented in short order, I can tell you it wasn't the tube, but the reseller company went bang shortly after. So i never saw a a solution!

@AndyDoz

5 күн бұрын

According to my notes, C56 used to fail giving symptoms of poor contrast and smearing, which was a 10uF 16V tantalum, used for DC blocking in the lumenance stage. Perhaps that was it? Tants are horrible things ;)

@PhatTony-km3fl

4 күн бұрын

@@AndyDoz That sounds like the problem Andy.👍

@kevb1816

4 күн бұрын

The red cap on the tube base caused soft focus. Used to replace them but on a set I got free and passed on just chopped it out….