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

Page 19

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

Image 19
Contents Cassette type Dolby B NR Dolby NR off SpecificationsGeneral Table of ContentsMechanical Adjustments Electrical Adjustments DiagramsSection Servicing Notes Precaution on OPEN/CLOSE Front PanelGeneral SectionPrecautions Precauciones Säkerhetsföreskrifter Precauções Changing the sound and display settingsNollställningsknappen Reset button Botão de reinicializaçãoDashboard Salpicadero Instrumentbrädan Botón de restauración ΠλήκτρNotas de ejemplo de conexiones Diagrama de conexión de alimentaciónStrömanslutningsschema Diagrama de ligação de correnteUtrustning som visas Equipamento utilizado nas Exemplo de ligações Connection exampleEjemplo de conexiones Anslutningarna enligt exempletMechanism Deck MG-25E-136 Section DisassemblyMotor Block ASSY, CAM R Assy Front Panel AssyMain Board SUB Panel XR SUB AssyHeat Sink Front Panel Machinery Motor Block Assy Section AssemblyCAM R Assy Screw PTT2.6 ⋅ Motor block assy Connector CN501 Cam R assy ARM Suction Mechanism DeckGear LDG-FT Lever LDG-A / LDG-BMounting Position of CAPSTAN/REEL Motor M901 Guide CSection Electrical Adjustments Section Mechanical AdjustmentsTape Deck Section Tuner Section Disc buttonsBlock Diagram TUNER/TAPE Section Section DiagramsMPX Block Diagram Main SectionSPE-IN Block Diagram -DISPLAY/BUS Control Section+5V Regulator Block Diagram Power Supply SectionWaveforms Main Board Semiconductor Location Printed Wiring Boards Main Board Component SidePrinted Wiring Boards Main Board Conductor Side XR-M510 XR-M510 XR-M510 XR-M510 Printed Wiring Boards SUB Board Schematic Diagram SUB Board Printed Wiring Boards Display Board Schematic Diagram Display Board See page 25 for Waveforms TDA7402TR IC501 BA8270FV-E2 Main Board IC601 MB90574BPMT-G-257-BND System Controller IC PIN Function DescriptionAvcc Accin LED SW2 PE0 PE1 LCDCE0 Ground terminal for A/D converter Exploded Views Cord with Connector ISO PowerSUB Panel Section LIST. ENTER. SOUND. Menu Front Panel Section55 1-694-685-11 Conductive BOARD, Connection 65 A-3283-095-A Display BOARD, CompleteMain Board Section 107 A-3326-298-A Switch BOARD, Complete165 A-3220-607-A Mechanism Deck Assy Mechanism Deck Section MG-25E-136M901 A-3291-665-A Motor ASSY, Main CAPSTAN/REEL Display Section Electrical Parts ListDisplay Main Elect MainBuzzer CAPACITOR/SHORTDiode UDZS-TE17-5.6B ConnectorElect Block BUS Audio IN, Audio OUT REAR/FRONTKRA103S KRC103SR260 216-821-11 Main SUB Switch