TANDBERG TCD 310 Service Manual

3.2.2 Details of adjustment procedure
@ Pinch rollers.
Parallelity. Move the mounting plate inwards so
that the pinch rollers almost touch the capstans.
Adjust with the screws (P) so that both rollers are
parallel with the capstans.
A white piece of paper can be inserted behind the
pinch roller and capstan to make it easier to see
the gap between them.
Height. Insert the open cassette. Move the mounting
plate inwards and check that the tape fits exactly
into the tape guide on pinch roller 1. Adjust with
the two screws (H) if necessary (turn both screws
equal amounts). Also turn the azimuth screw (AZ)
correspondingly in the opposite direction to keep
the roller roughly in correct azimuth position.
Adjust pinch roller 2 to corresponding height. This
adjustment is not critical.
Azimuth. Set the cassette deck to PLAY and check
that the tape does not ”climb” on the capstans. If
necessary, adjust with the screws (AZ).
Check again that the tape is not bent or folded at
the tape guide of pinch roller 1. Also check the
parallelity again.
Height and azimuth can also be adjusted by means of a
Tandberg Adjustment Plate. The pinch rollers are then
checked against the tabs marked A and B in the figure.
(A special adjustment plate for the pinch roller shafts
can also be used).
Pinch roller operation. Remove the cassette and
move the mounting plate inwards. Check that both
pinch rollers meet the capstans at exactly the
same time (the pinch rollers will start rotating
when they touch the capstans). If required, adjust
with the eccentric screw as shown.
@ Erase head
The position of the erase head is adjusted by turning
the screws on the head mounting plate (see top
figure next page ).
Preadjustment of head mounting plate. Adjust with
the screws (H) and (AZ)so that the head mounting
plate is parallel with the underlying mounting plate.
The gap between them should be approx. 1 mm. To
check this, the right chassis plate must be removed.
6
Height Azimuth Parallelity
Adjustment screw for pinch roller operation
Preadjustment of head mounting plate

TANDBERG TCD 310 Specifications

General

Weight	7.5kg
Track System	4-track, 2-channel stereo
Tape Speed	4.76 cm/s
Heads	1 x record/playback, 1 x erase
Type	Cassette Deck
Frequency Response	30 Hz to 16 kHz (Chrome tape)
Signal to Noise Ratio	58dB
Wow and Flutter	0.07 %
Motor	DC servo motor
Tape Type	CrO2
Power Supply	220V
Input	Line In