SECTION 4

MECHANICAL ADJUSTMENTS

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

playback head

pinch roller

rubber belt

capstan

idles

 

2.Demagnetize the 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 power supply voltage unless otherwise noted.

Torque Measurement

Mode

Torqu Meter

Meter Reading

 

 

 

Forward

CQ-102C

30 - 65 g·cm

(0.42 - 0.90 oz·inch)

 

 

Forward

CQ-102C

0.5 - 4.5g·cm

Back Tension

(0.01 - 0.06 oz·inch)

 

 

 

 

Reverse

CQ-102RC

30 - 65 g·cm

(0.42 - 0.90 oz·inch)

 

 

 

 

 

Reverse

CA-102RC

0.5 - 4.5g·cm

Back Tension

(0.01 - 0.06 oz·inch)

 

 

 

 

FF, REW

CQ-201B

60 - 200 g·cm

(0.83 - 2.78 oz·inch)

 

 

 

 

 

Tape Tension Measurement

 

 

 

 

Mode

Torqu 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)

 

 

SECTION 5

ELECTRICAL ADJUSTMENTS

TEST MODE

This set have the test mode function. In the test mode, FM Auto Scan/Stop Level and AM (MW) Auto Scan/Stop Level adjustments can be performed easier than it in ordinary procedure.

<Set the Test Mode>

1.Set the “OFF” mode.

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.

<Release the Test mode>

1. Push the “OFF” button.

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Sony XR-C440 service manual Section Mechanical Adjustments, Section Electrical Adjustments