
Forum Replies Created
RE: Hitachi CSP 680 - ex crustytv Tried a 10% each way adjustment of R911 - no significant change to HT which now reads about 112V. Only 10.3V on the 12V rail, it has been suggested by another friend of mine, may not be sufficient for... | In forum Colour Television | 2 months ago |
RE: Hitachi CSP 680 - ex crustytv OK, some progress... having replaced TR41 (with a BC640), R908 (with a metal oxide 2W resistor) and C906, the symptom is no longer "no raster", but "no video" - there is clearly a raster as deflection... | In forum Colour Television | 2 months ago |
RE: Maplins Universal Modulator VH89W The Maplin modulator looks just like my short lived Philex. I hope my purposes are served by the JVC video recorder I have, for a while, but I am keen to hear others' experiences. | In forum In The Workshop | 2 months ago |
RE: Hitachi CSP 680 - ex crustytv Farnell order arriving today. Looks like early next week to actually fit the parts. | In forum Colour Television | 2 months ago |
RE: Hitachi CSP 680 - ex crustytv Parts on order. Postal issues may delay things a bit, but with luck I'll have a raster by Christmas. | In forum Colour Television | 2 months ago |
RE: Hitachi CSP 680 - ex crustytv @irob2345 Hmmm... oddly they didn't show me that particular line when I searched. Now I only need to solve the resistor issue. | In forum Colour Television | 2 months ago |
RE: Hitachi CSP 680 - ex crustytv @katie-bush I don't think so - it's because their entire stock of BC640s is on the other side. £15+ surcharge because of it. Other supplier can sell me ten times as many for about half what I'd pay in... | In forum Colour Television | 2 months ago |
RE: Hitachi CSP 680 - ex crustytv Oddly enough, due to a special Transatlantic shipment charge, it is cheaper to buy 50 BC640 from one supplier than to buy 5 from another. If I go for the cheaper deal and anyone needs any, I may well ... | In forum Colour Television | 2 months ago |
RE: Hitachi CSP 680 - ex crustytv OK - well, one of my suppliers has BC640 for the same price as BC327 and subject to an order multiple of only 5, so I have put that on my list. Once I get to the bottom of the resistor requirement, I ... | In forum Colour Television | 2 months ago |
RE: Hitachi CSP 680 - ex crustytv Had time to investigate this a bit more. TR42 (a 2SA673) may well have been OK but one leg fell off during testing. R908 - meant to be 22K, 5% tolerance - is reading short - it's a large-ish resistor,... | In forum Colour Television | 2 months ago |
RE: Bought an old PYE TV, absolute beginner I'm wondering how the channel indicator on 1980/81 Finlandias worked... each had a "shows this when not tuned" but it seemed to change with the actual tuned channel. | In forum Colour Television | 3 months ago |
RE: Bought an old PYE TV, absolute beginner Hmmm... this is one of those teletext sets that advocated putting ITV on "2" and BBC2 on "3" - as did some early Thorn teletext sets. Why it was initially done on my grandad's first Luxor I have no id... | In forum Colour Television | 3 months ago |
RE: 1972 Hitachi CNP865 CNP865 is a PAL-1 chassis set. UHF-only version is CNP860, PAL-2 equivalent is CNP190/195. Still working on my CSP680 which has had two losses of HT and a loss of colour so far, but these sets are int... | In forum Colour Television | 3 months ago |
RE: 1970's Tandberg CTV1 & CTV2; additions to the Crustytv collection Posted by: @richardfrommarple @katie-bush The early G8s had a front convergence panel, but needed the speaker grille removed to access them. Some rental customers worked out how to get to them, and t... | In forum Colour Television | 4 months ago |
RE: 1970's Tandberg CTV1 & CTV2; additions to the Crustytv collection Earlier CTV2s (2-2 series models) were among favourites in my past. We had one at my Infants' school (a 103), and my grandfather had one (a 105). The 103 broke down once, with a manifestation of the s... | In forum Colour Television | 4 months ago |
RE: Hitachi CSP 680 - ex crustytv Instead of the cathode of CR39 connecting to the cathode of VA903, it connects to the cathode of VA901, via a wire link inserted as VA902. This seems to actually be how the board is marked. The vacant... | In forum Colour Television | 5 months ago |
RE: Hitachi CSP 680 - ex crustytv All transformer voltages, and the chassis-mounted transistor and resistor in that part of the circuit, check out. The main capacitor, a 470µF/200V can, is outside the range of my meter, and could poss... | In forum Colour Television | 5 months ago |
RE: Hitachi CSP 680 - ex crustytv Tests today showed, once again, no HT with plug K out of the deflection board. I have the power audio PCB out, and it seems to differ from the circuit diagram - VA903 is absent, solder is smooth, like... | In forum Colour Television | 5 months ago |
RE: Hitachi CSP 680 - ex crustytv @kswhite Yes, of course. | In forum Colour Television | 5 months ago |