Microvitec Monitor 1451MS4
BBC Microcomputer TELETEXT Project
Viewdata, Prestel, Philips
Philips Model Identification
1976/77 Rank Arena AC6333 – Worlds First Teletext Receiver
PYE 1980s Brochure
Ceefax (Teletext) Turns 50
Philips 1980s KT3 – K30 Range Brochure
Zanussi Television Brochure 1982
Ferguson Videostar Review
She soon put that down
1983 Sanyo Brochure
Wireless World Teletext Decoder
Unitra Brochure
Rediffusion CITAC (MK4A)
Thorn TRUMPS 2
Grundig Brochure 1984
The Obscure and missing Continental
G11 Television 1978 – 1980
Reditune
Hitachi VIP201P C.E.D Player
Thorn 3D01 – VHD VideoDisc Player
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
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
Microvitec Monitor 1451MS4
BBC Microcomputer TELETEXT Project
Viewdata, Prestel, Philips
Philips Model Identification
1976/77 Rank Arena AC6333 – Worlds First Teletext Receiver
PYE 1980s Brochure
Ceefax (Teletext) Turns 50
Philips 1980s KT3 – K30 Range Brochure
Zanussi Television Brochure 1982
Ferguson Videostar Review
She soon put that down
1983 Sanyo Brochure
Wireless World Teletext Decoder
Unitra Brochure
Rediffusion CITAC (MK4A)
Thorn TRUMPS 2
Grundig Brochure 1984
The Obscure and missing Continental
G11 Television 1978 – 1980
Reditune
Hitachi VIP201P C.E.D Player
Thorn 3D01 – VHD VideoDisc Player
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
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
CTV JVC TM-1010PN-K Professional Video Monitor
A friend won this on Evilbay but unfortunately the seller decided to send this wrapped in a single layer of bubble wrap via Evri, with inevitable results!
Quite how the tube didn't get necked is beyond me as the whole weight of the thing was on the neck resting on a heat sink. The tube was originally attached to the front with four screws in each corner as you'd expect, however the plastic fixings had broken off so the tube was completely loose.
So, firstly to address the tube mounting issue I heated up the heads of some M4 bolts and plunged them into where the plastic mounts are supposed to be:
Then I melted some scrap plastic and filled the voids around the bolts:
I also strengthened the front with some epoxy as it seemed to be a bit brittle. This certainly isn't the build quality I'd expect from a "professional video monitor" then again this is a lot newer than I'm used to (1998!) So maybe I'm expecting too much?
More to follow once the epoxy is set.
Looks like it fared better than the Sony PVM that I had in 2009! The tube got necked in that, and most of the boards were broken by the tube bouncing on them. That was just put in a box with no packaging at all! The most interesting packaging attempt was done by another eBay seller who sent me a 9” Philips telly with nothing more than 2 Jiffy bags gaffer taped over the front and back!! Amazingly it survived the journey, and even worked to some extent!
Posted by: @waynedThis certainly isn't the build quality I'd expect from a "professional video monitor" then again this is a lot newer than I'm used to (1998!) So maybe I'm expecting too much?
We used a lot of those at work at one point and no, the build quality wasn't great but they were cheap and you could get two in a 19" rack. I think you could run them off 12V as well so they made a good "field" monitor. Used to get dry joints in the decoder (no luminance) and they had field scan problems caused by an electrolytic being hard up against a heatsink. Never had PSU or line output trouble with them though.
Reassembled the bezel:
Switch on aaaaannnnnd:
Oh dear, very dim. When I turn the brightness and contrast up red is smeared, green is missing but blue is just about passable. The lack of green might be due to shipping damage so I'll investigate further but I'm not holding out much hope for this. Last PAT test was 2016 so I wonder if this has been used from 1998 right up to then.
At least the CRT shadowmask isn't buckled so there's hope, hard to tell but the CRT emission looks good. Could be that the lack of green drive is mucking up the auto greyscale. Might be worth checking the A1/screen volts from the LOPT and the print under it.
John.
There's nothing getting to the G2 pin, which I've managed to trace (with the help of my phone's camera!) To a hairline crack on the neckboard across the G2 trace:
Looking at the neckboard closer I spot the green transistor has a broken solder pad:
A couple of repairs and....
Now that's more like it! Sorted.
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