Just come across this, Over the last 40 plus years I have repaired loads of Grundig sets but never seen one like this, virtually nothing on the main board and everything just plugs in, even the LOPT plugs into a socket on the back of the board, modules have led indicator to flag up faults and protection circuits can be disabled by pushing a button on the relevant plug in module.
Hi Michael,
Now that is pretty impressive, I would love to find one of those, as I suspect would you. That's taken modular design and diagnostics to the ultimate limit. I wonder if this chassis was ever available in the UK?
Grundig, do seem to have started this modular approach, backed with diagnostic aids, way back in the early 1970s. I have in my collection and still waiting bench time, a 1973 26" Grundig 5011. On this much earlier series chassis, the modular approach was evident, although not to the degree as you show above.
For this version of the chassis, there was a diagnostic device that when plugged onto the rear of the main board, it would, via LED indicators, provide the engineer with a visual clue as to what section of the circuit was under fault condition. This was the Grundig Diagnostic Adapter. Looking at the device, it would appear to give the engineer a "Go-No-Go" for the various parts of the TVs circuits (see below). I managed to get one of these a few years ago for when I do eventually attempt a repair.
Other Grundig brochures on the main site are here:-
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A lot of Grundig products had plug-in modules of one sort or another. I remember there was an optional plug-in SSB decoder for their higher-end portable radios.
Earley grundig always had plug in boards but the unusually thing about this set is the servicability of the set, there's no components on the main board apart from a capacitor and inductor and all the modules are self diagnosing and factory sealed, the blurb says if a module fails you just send it vack to grundig for repair
Hi Michael,
Grundig, do seem to have started this modular approach, backed with diagnostic aids, way back in the early 1970s. I have in my collection and still waiting bench time, a 1973 26" Grundig 5011. On this much earlier series chassis, the modular approach was evident, although not to the degree as you show above.
For this version of the chassis, there was a diagnostic device that when plugged onto the rear of the main board, it would, via LED indicators, provide the engineer with a visual clue as to what section of the circuit was under fault condition. This was the Grundig Diagnostic Adapter. Looking at the device, it would appear to give the engineer a "Go-No-Go" for the various parts of the TVs circuits (see below). I managed to get one of these a few years ago for when I do eventually attempt a repair.
I have one of those grundig diagnostic testers somewhere, I realley don't know if this was an idea that ever went into production or not.
all the modules are self diagnosing and factory sealed, the blurb says if a module fails you just send it vack to grundig for repair
Actually, although a technically intriguing chassis, the more I think about it, I find myself actually despising it! A link in the chain and demise of the TV trade, dumbing it down from component level fault-finding into glorified panel swappers.
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
all the modules are self diagnosing and factory sealed, the blurb says if a module fails you just send it vack to grundig for repair
Actually, although a technically intriguing chassis, the more I think about it, I find myself actually despising it! A link in the chain and demise of the TV trade, dumbing it down from component level fault-finding into glorified panel swappers.
Hah! Welcome to my world.
There was a shortage of skilled engineers in the late 70's, unlike PL802s though it wasn't possible to make a solid state one!
The dealer I worked for lost a few of the best engineers to industrial electronics firms as the wages were higher and the aggro much less! We had a government retrained milkman and all sorts. Hence manufacturers made sets that could be fixed by a panel pusher.
This set was one step further! Did it go into production or at least were there any UK models? I didn't see one despite doing a lot of repairs for a Grundig dealer when he lost his bench engineers....
ITT has a similar idea, may have been CVC25? It had LEDs dotted around to indicate missing supply lines ETC. All a bit of a gimmick really.
All of this said when a field engineer is laden with calls and has to fix sets quickly in a hot dark corner of the room on a cat pi$$y carpet you want to " plug in and P-Off! "
I was tempted away from my £100 a week and a second-hand Ford Escort job by a £200 a week and a new Cortina job in industrial electronics... I stuck it for three months! Then I went self employed and bought a second-hand Escort van. Bliss! 😎
Hi Michael,
I have in my collection and still waiting bench time, a 1973 26" Grundig 5011. [...]
if you get stuck on the 5010.
Until they discovered that the most unreliable part of the TV was the interconnects.
