Section 3 Controls and Indicators
3 - 2
May 1992
MX-5050 Operation and Maintenance Manual
3.1 Tape Transport
Numbers in brackets []refer to Figure 3-1.
[1] Supply Reel Table
[2] Take-up Reel Table
The Reel Tables are supplied with reel clamps for 5" or 7" reels. For 10.5 inch
NAB reels, use the supplied reel adapter.
[3] Tension Arm
The Supply Tension Arm helps correct tape tension fluctuations due to
changes in tape pack diameter or irregularities in tape pack.
[4] Tacho Roller
The Tacho Roller is turned by tape motion and generates tacho pulses which
are used for the calculation of tape time and recognition of the tape direction.
[5] Splicing Block
When editing a tape, the tape is cut or spliced on this block.
[6] Pinch Roller
The tape is driven by the rotation of the Capstan Shaft against the Pinch
Roller.
[7] Capstan Shaft
The Capstan Shaft is directly driven by a DC servo motor which is controlled
by a quartz crystal reference in a phase-locked-loop circuit.
[8] Tension Arm with Safety Switch
The take-up tension arm is provided with a safety switch which stops the
transport when the tape becomes unthreaded from the reel or when too
much slack develops in the tape path.
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