Sony DSR-250, Service Manual

Page: 212 / 322

5-54
2-4-3. TG2/7 HEIGHT CHECK AND ADJUSTMENT
1. Preparation before check
1) Check that the cassette compartment block has already been
removed. (Refer to page 5-35.)
2) Set the mechanism deck to the loading end position (TG2 to 7
already moved to the loading end position and the pinch roller
is in the unloading position). Alternatively, set the mechanism
deck to the “LE position” using the mode selector II. (Refer to
page 5-35.)
3) Place the TG2/7 preset plate (J-24).
2. Check and adjustment
Rotate the TG upper flange until the height of the TG2/7 preset
plate (J-24) and TG2 or TG7 roller block is the same. Alternatively,
rotate the TG upper flange of only TG2 by 60˚ in the direction of
raising the guide from the adjusted height while referring to the
figure below.
1. Preparation before check
1) Check that the cassette compartment block has already been
removed. (Refer to page 5-35.)
2) Set the mechanism deck to the loading end position (TG2 to 7
already moved to the loading end position and the pinch roller
is in the unloading position). Alternatively, set the mechanism
deck to the “LE position” using the mode selector II. (Refer to
page 5-35.)
3) Place the TG2/7 preset plate (J-24).
2. Check and adjustment
Rotate each adjuster to adjust the TG2/7 position until or of
the TG2/7 preset plate (J-24), TG2 and TG7 are in line.
2-4-4. FWD/RVS POSITION CHECK AND ADJUSTMENT
Face the mirror (J-14) in the
direction of the arrow and
perform a visual check.
Attach the boss while aligning it
with the hole of the cassette
reference plate (J-22).
TG2/7 preset plate
(J-24)
Boss
Cassette reference plate
(J-22)
Align the center of TG2 with the vertically
extended line of the jig plate's tip as shown.
TG2 arm
TG7 arm
Rotate the adjuster with a resin
screwdriver, etc. Be careful not
to bend the band.
Align the center of TG7 with the vertically
extended line of the jig plate's tip as shown.
TG2/7 preset plate (J-24)
Rotate the adjuster with a resin
screwdriver, etc. Be careful not
to bend the band.
TG2 or TG7
The guide is too low. The guide is too high.
Screwdriver for tape path (J-15)
The guide
is raised. The guide
is lowered.
Not good Not good
Good
TG2 or TG7
TG2 or TG7
The normal height of TG2 is the position
where the TC upper flange is rotated by
60
°
in the direction of raising the guide
from the adjusted height while referring
to the figure below.
The normal height of TG7 is the current
one.
60
°
60
°
60
°
60
°