711 Type; Terminology; Preparations For Adjustment - Sony Discman D-50MkII Service Manual

SECTION 3
711 TYPE (NTSC SYSTEM)
This adjustment is performed so that the tape runs
correctly in a set position, and has a large effect on
picture quality and interchangeability. Perform the
adjustment in the order given below.
3-1. Terminology
The No. 0 to.6 guides on the tape guide location
diagram (Fig. 3-1) are called the entrance side guides,
and No. 7 to 10 guides are the exit side guides.
When the alignment tape (KR5-1M)is played, the side
to the left of center of the RF output waveform on
the oscilloscope is called the "entrance side", and
the waveform is mainly affected by the entrance
side guides. The right side is called the "exit side"
and is mainly affected by the exit side guides. (Fig.
3-2)
No. 3 guide No. 4 guide
No. 5 guide lateral adjustment screw
No 3 adjust plate
No. 5 guide
lock screw
lock screw
No. 9 guide
No. 10 guide
Fig. 3-1 Tape Guide Location Diagram
3-2. Preparations for Adjustment
Fig. 3-2 RF Output Waveform pulse pin.