Sony TC-FX45 specifications Section Adjustments

TC-FX45

SECTION 3

ADJUSTMENTS

3 - 1 . M E C H A N I C A L A D J U S T M E N T S

PRECAUTION

1.Clean the following parts with a denatured- alcohol-moistened swab:

record/playback head	pinch	roller
erase head	rubber	belts
capstan	idlers

2.Demagnetize the record/playback head with a head demagnetizer.

3.Do not use a magnetized screwdriver for the adjustments.

4.After the adjustments, apply suitable locking compound to the parts adjusted.

5.The adjustments should be performed with the rated power supply voltage unless otherwise noted.

lead Height Adjustment

1.Prepare an adjustment cassette as shown below.

C- 1	Cur out hatched
tape cassette	portions.

2.In playback mode and viewing from the front, adjust the head heights to eliminate tape curl and tape twist at portions of the arrow.

erase head record/playback

>;

3-513-237-01 (t=O.l)

3-513-237-11 (t=0.2) Shim, head height adjustment

Torque Measurement

			1
Torque	Torque meter				Meter reading
Forward	CQlO2C	’			28- 60gm-cm
				(0.38 - 0.83 oz-inch)
					2.5 - 6g-cm
Back Tension
				(0.03 - 0.07 oz-inch)
Fast Forward					80 - 165 g-cm
and Rewind				(1.1 - 2.2 oz-inch)

Pinch Roller Pressure Measurement

- Playback Mode -

@ Slowly return he pinch roller and read the spring scale just when the pinch roller starts rotating. (The capstan should

pinch roller

\

0 tension gauge

Soft Eject Adjustment

Specification

Set the tape (C-90) and adjust the adjustment screw so that the EJECT TIME is within the specification.

fast

slow

@

adjustment screw

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