Philips X12T740 portátil B&W TV

Customer dropped this little set off. Either gift it to me or bin. Shame to see it trashed, so I thought I would see if something could be done for her. I can remember when I thought stuff from the early ‘70s was modern. Horrifying to thing this set is 47 years old.

Back off and a quick check around for anything nasty. All okay there. Power up with some current limiting and low voltage, nothing untoward, good. Sometimes, running solid sate gear at half power can catch you out. Parts of the circuit may not oscillate for example and transistors can effectively go short circuit. De todas formas, up full power, along with a modulated signal from a DVD machine.

This set has quite a comprehensive tuner, VHF and UHF making it useful in Europe and Ireland etc.. Nothing much going on and gone are the days when I could hear the 16Khz line whistle. Being Philips, you have to expect dry joints. Después 3 cubit feet of solder we managed to get a raster. The set had been asleep for 30 years or so, so the tube took a little time to come up. Tuned into the modulator and the picture was not too bad. But we had no sound. After flexing the PCB, the sound crackled off and on. Another 15 minutes tapping around and soldering brought no joy. It was then I thought I should push the loudspeaker plug back in. Check the obvious first Seth.

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