Technics

Apparently the power switch got kicked/knocked by accident and now doesn’t work 🙁 Can’t get to it easily so it’s front panel off time again, 51 million screws and knobs! (The switch is secured to the chassis behind the panel with two screws) Oops 1: Oops 2: A rather hard to find lever switch (centre […]

This lovely example of 70’s Japanese workmanship came in with no output. Turns out +57V and -57V rail rectifiers (double-diodes D501 and D502) one had gone short circuit, and taken out both 2.2 ohm R501/R502 1/8W fusible resistors. As these were now unobtainium (CO8P-1 and CO8P-1R) they were temporarily replaced with 1/8W and couple of