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A short briefing of the current project. Here is a list of the registered faults in the Rubin color tv set:
- Line output tube, filaments did not light up (fixed)
- E.H.T. coil on L.O.P.T. was running hot (fixed)
- Vertical frequency too low (fixed)
- Strong vertical linearity faults (fixed)
- Missing sound
- Missing video (Y) signal (fixed)
- Faulty A.G.C.
- Faulty I.F. curve
- Some faults in the SECAM FM decoder and matrix unit
- Faulty tuner.
After a lot of work, the Rubin displays a first color picture, see test pattern in the attachment. The photo was taken from the mirror, so it is side reversed.
Schematics added.
Kind regards,
Eckhard
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