Sony XR-M510 Section Mechanical Adjustments, Section Electrical Adjustments, Tape Deck Section

SECTION 5

MECHANICAL ADJUSTMENTS

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

swab:
playback head	pinch roller
rubber belt	capstan
idler

2.Demagnetize the playback head with a head demagnetizer.

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

4.The adjustments should be performed with the power supply voltage (14.4 V) unless otherwise noted.

• Torque Measurement

XR-M510

SECTION 6

ELECTRICAL ADJUSTMENTS

TEST MODE

<Set the Test Mode>

1.Turn ON the regulated power supply. (All LEDs on the set lights up, and the clock is displayed.)

Note: Press the [OFF] button, if the clock is not displayed.

2.Push the preset [4] button.

3.Push the preset [5] button.

4.Press the preset [1] button for more than two seconds.

5.Then the display indicates all lights, the test mode is set.

Mode	Torque Meter	Meter Reading
		2.95 – 6.73 mN•m
Forward	CQ-102C	30 – 65 g•cm
		(0.42 – 0.90 oz•inch)
Forward		0.05 – 0.44mN•m
	CQ-102C	0.5 – 4.5 g•cm
Back Tension
		(0.01 –0.06 oz•inch)
		2.95 – 6.73 mN•m
Reverse	CQ-102RC	(25 – 55 g•cm)

<Release the Test mode>

1. Push the [OFF] button.

TAPE DECK SECTION

Tape Speed Adjustment

Setting:

0 dB=0.775 V

		(0.42	– 0.90 oz•inch)
Reverse		0.05 – 0.44mN•m
	CQ-102RC	0.5 – 4.5 g•cm
Back Tension
		(0.01	–0.06 oz•inch)
		5.89 – 19.61 mN•m
FF, REW	CQ-201B	60 – 200 g•cm)
		(0.83	– 2.78 oz•inch)

• Tape Tension Measurement

Mode	Tension Meter	Meter Reading
Forward	CQ-403A	more than 90 g
		(more than 3.18 oz)
Reverse	CQ-403R	more than 90 g
		(more than 3.18 oz)

test tape

WS-48Afrequency counter (3 kHz, 0 dB)

10 kΩ

+

set–

AUDIO OUT REAR jack (CN300)

Procedure:

1.Put the set into the FWD PB mode.

2.Adjust adjustment resistor for inside capstan motor so that the reading on the frequency counter becomes in 3,015 Hz.

Specified Value: 2,955 to 3,075 Hz

Adjustment Location: See page 20.

19