Akai Cassette Deck Repairs
This reel to reel machine was in need of a service, plus the vertical tension wheel was a sloppy fit and was allowing the tape to ride over the tape guide, the spring was missing, the pinch wheels needed cleaning and generally lubricating.
The 24V was missing, there are two supplies Zener s\c transistor o\c, play lamp o\c 6 V, Dolby 24 V (used 6 V with two 470 ohm in parallel).
Pro cassette deck from the late 80's,one VU level display kept going off. There were dry joints behind the display tube for the level segments.
Low output on playback was the fault, it needed the tilt\azimuth setting correct.
This is a semi-pro cassette deck from the late 80's,the LH pinch wheel was fouling the cassette holder when ejected, the grease on the pivot had solidified stopping, the mechanism returning to the rest position stripping and cleaning cured it.