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1971 Beovision 3200
Forum Free Registration Closed
Granada Television Brochure, 1970s
Long Gone UK TV Shops
Memories of a Derwent Field Service Engineer
PYE Australia Circa 1971
Radios-TV VRAT
Fabulous Fablon
Thorn TX10 Chassis
Crusty-TV Museum, Analogue TV Network
Philips N1500 Warning!
Rumbelows
Thorn EMI Advertising
Thorn’s Guide to Servicing a VCR
Ferguson 3V24 De-Robed
Want to tell us a story?
Video Circuits V15 – Tripler Tester
Thorn Chassis Guide
Remove Teletext Lines & VCR Problems
Ceefax (Teletext)
Suggestions
Website Refresh
Colour TV Brochures
1970s Lounge Recreation
CrustyTV Vintage Television Museum
Linda Lovelace Experience
Humbars on a Sony KV2702
1972 Ultra 6713
D|E|R Service “The Best”
The one that got away
Technical information
The Line Output Stage
The map
Tales of a newly qualified young engineer.
Tales of a Radio Rentals Van Boy
Sanyo SMD
Disastrous Company Rebranding
1969 Philips G22K511
Memories Of The TV Trade
Crazy house
Dirty TV screens
Dual Standard and Single Standard CTV’s
Radios-TV on YouTube
The Winter of 62/63
A domestic audio installation
1979 Ferguson Videostar Deluxe 3V16
Music centre modifications
Unusual record player modification
B&K 467 Adapters
Mishaps In The Trade
1971 Beovision 3200
Rank-Arena F22 B110
Hi, i have this oldie CTV from Rank-Arena i got for a week ago, it is in good condition, and i want to get it "back to life" again.
i took out the chassis and checked board after board, then slowly put on the power ca. 50vAC and up to full voltage (220volt) there is glow in the tube and snow sound i the speaker, but very very low high voltage at the HV transformer, i soldered the wire of from the tripler, but still same issue, so what to do next?
As i can see the television is factured in GB in 1972, there is a label inside the television where were typed the date and information about test.
I dont know how to put in a picture yet, so i have linked it from my flickr account
https://www.flickr.com/photos/acjexplorer/35948095596/sizes/l
and the other picture of the television in album
https://www.flickr.com/photos/acjexplorer/albums/72157686398499725
Alex
That's the RBM ( Rank Bush Murphy) A823 chassis.
There's plenty of engineers on here familiar with that chassis. Don't forget up top on the green menu bar, under "service", there is a whole raft of useful info, stock faults and service guides and this chassis is covered.
Have a look through these, they're sure to give you some pointers.
https://www.radios-tv.co.uk/rbm-sstd-stock-faults/
https://www.radios-tv.co.uk/rbm-a823/
And of course once you earn access to the active members service library, there's the full RBM manufacturers service manual.
I have a really early version of this chassis in my Bush CTV187CS
CrustyTV Television Shop: Take a virtual tour
Crusty's TV/VCR Collection: View my collection
Crustys Youtube Channel: My stuff
Crusty's 70s Lounge: Take a peek
The chassis looks like the RBM A823, with I presume slight changes for VHF/UHF operation, slightly narrower IF passband, 5.5MHz inter carrier sound and 220V 50Hz AC supply.
Frank
Thank you so much Chris, i really love this site :-), i will take a look on those links you wrote, thanx again
Yes Frank, in Denmark we use Pal B and 5.5 Mhz spacing from video IF
Alex 😉
PS: it must be one of the very first full transistored CTV in Europe? We have B&O but they abandoned the tubes in 1973 wit their beovision 4000 model, B&O didnt impress me, the TV sets was to complicated to repair and they made a lot of strange solutions in their circuits.
I discovered many years ago that Bush made specific modifications to some of their 1940s radios for the Danish market - the model AC81 was one such set. The manual is in storage at the moment so sadly I cannot post up pictures.
Cathovisor said
I discovered many years ago that Bush made specific modifications to some of their 1940s radios for the Danish market - the model AC81 was one such set. The manual is in storage at the moment so sadly I cannot post up pictures.
Okay that´s new for me, back in days we have many radio/tv factories, the most known from outsite Denmark was Philips, they have a big factory in Copenhagen from 1933 to ca 1975 and they produce radioes and televisions, i wonder why they didn´t import from Nederland? 🙂
@Nuvistor/Frank, how amazing, Denmark was hopless back in development, B&O 3000 was eating aprox 400 watt from the supply :-O it´s not a TV, it´s a very big heater 😀 haha
Chris said
That's the RBM ( Rank Bush Murphy) A823 chassis.There's plenty of engineers on here familiar with that chassis. Don't forget up top on the green menu bar, under "service", there is a whole raft of useful info, stock faults and service guides and this chassis is covered.
Have a look through these, they're sure to give you some pointers.
https://www.radios-tv.co.uk/rbm-sstd-stock-faults/
https://www.radios-tv.co.uk/rbm-a823/
And of course once you earn access to the active members service library, there's the full RBM manufacturers service manual.
I have a really early version of this chassis in my Bush CTV187CS
one question my friend, how do i "earn" to acess those service manuals? or how to do 😉
Alex 😉
acj1980 said
one question my friend, how do i "earn" to acess those service manuals? or how to do 😉
Please see section 6 here: https://www.radios-tv.co.uk/forum/site-rules-and-faqs/forum-access-rules/
Cathovisor said
acj1980 said
one question my friend, how do i "earn" to acess those service manuals? or how to do 😉Please see section 6 here: https://www.radios-tv.co.uk/forum/site-rules-and-faqs/forum-access-rules/
Thank you Cathovisor 🙂
Hello Alex and welcome, that's a very interesting TV you have there. Looking at the cabinet styling there is nothing that gives it away being manufactured by Rank, could you possibly post a picture of the rear cover to see if that would have given us a clues? Also the tuner looks very German with it's separate button for tuning, does it have any markings that could identify the manufacturer?
Good luck with fault finding, the line output (flyback) transformer was extremely reliable and failures are virtually unknown on all of the A823 chassis versions. One or both of the BU105s can fail and are probably the worst job in servicing the set, there is very little space to work where they are located. On any A823 it's also a good idea to check 7RV3 on the convergence board which causes problems.
John.
John.
Have a look at Alex's Flickr album, there's a rear cover photo among them
https://www.flickr.com/photos/acjexplorer
CrustyTV Television Shop: Take a virtual tour
Crusty's TV/VCR Collection: View my collection
Crustys Youtube Channel: My stuff
Crusty's 70s Lounge: Take a peek
PYE625 said
One good way is to send PYE625 lots and lots of chocolate..... YUM YUM
Haha nice one, i noticed that, 😉 i think youre my new best friend 😉 i am a very big fan of chocolate
@Jayceebee, i will try to locate a little more tomorrow, and then post som more picture of the TV, i know that Rank was made the television for the danish radio and tv factory Arena i Horsens, the Rank group buyed around 50% of Arena, the factory burned down i april 1970 and need capital for getting back again on market, i think they produced it for Arena in the first year,and later in Horsens (1971-1975) until they closed Rank-Arena, i hope it make sense, im sorry for my bad english.
I´m happy to read that about the flyback transformer, it would be very differcult to get one today
Alex 😉
acj1980 said
.........the factory burned down i april 1970
Happened to me in 2001 and ultimately led to the collapse of the company I worked for in 2003.
Absolutely no need for you to apologize for your English, it's very good indeed. Do you know of any other UK manufacturers sets that made it to Denmark, I may be very wrong here but something tells me that Thorn may have used the brand name Skala on TVs or possibly the name of a rental shop chain in Scandinavia?
John.
John.
Jayceebee said
acj1980 said
.........the factory burned down i april 1970
Happened to me in 2001 and ultimately led to the collapse of the company I worked for in 2003.
Absolutely no need for you to apologize for your English, it's very good indeed. Do you know of any other UK manufacturers sets that made it to Denmark, I may be very wrong here but something tells me that Thorn may have used the brand name Skala on TVs or possibly the name of a rental shop chain in Scandinavia?
John.
Thanx mate :-).
I know we have Skala vcr´s in the 80ies, but that was a JVC inside, the same machines from Ferguson, Arena often used Garrad turntables in their production, and taperecorders, in the start 60ies arena introduces a kind of tape recorder build on a garrad recorder deck, another Danish radiocompany named Eltra used BSR deck in their second model reel to reel recorder, the Eltra 1001, was made in 62000 units from 1964-1970, it was a really good and religable machine but with tubes, they didnt like transistors ;-).
Thank you so much cathovisor, i am already enjoy to visit the forum, indeed 😀 it is so nice i have found the right forum
Alex 😉
acj1980 said
another Danish radiocompany named Eltra used BSR deck in their second model reel to reel recorder, the Eltra 1001, was made in 62000 units from 1964-1970, it was a really good and religable machine but with tubes, they didnt like transistors 😉
They clearly had excellent taste and judgement!
acj1980 said
I know we have Skala vcr´s in the 80ies, but that was a JVC inside
They were probably assembled in Berlin or Newhaven in the UK under the J2T venture between Thorn, Telefunken , Thomson and JVC. Never seen a picture of a Skala badged product.
John.
John.
Jayceebee said
acj1980 said
I know we have Skala vcr´s in the 80ies, but that was a JVC insideThey were probably assembled in Berlin or Newhaven in the UK under the J2T venture between Thorn, Telefunken , Thomson and JVC. Never seen a picture of a Skala badged product.
John.
Hmm i dont know what the word "bagded" means, but i think it maybe is fx jvc machine, but on the front of the machine there is another logo like Saba, Telefunken aso, am im right?
BTW, this evening i took a look on the HV part in the Rank TV and soldered the 2 Sc643a transistors out for measuring, booth of them, but it´s was okay, so back again, it was actually easy to remove it from the chassis, :-), i found the one 10R resistors was 17ohm, so i put some new pair into both of the transistors, tomorrow.... or later this day 😉 i will try to turn it on again and put on the scope to see what is going on .
Good night, 😀
Alex 😉
PS: i have put some new pictures in the album i linked to earlier
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