Sony Xr-c9100r User manual

– 1 –

Model Name Using Similar Mechanism XR-C8100R

Tape Transport Mechanism Type MG-25D-136

SERVICE MANUAL

AEP Model

UK Model

XR-C9100R

FM/MW/LW CASSETTE CAR STEREO

AEP, UK Model

FM/MW/SW CASSETTE CAR STEREO

German Model

Cassette player section

Tape track 4-track 2-channel stereo

Wow and flutter 0.08 % (WRMS)

Frequency response 30 - 20,000 Hz

Signal-to-noise ratio

Cassette type Dolby B NR Dolby C NR Dolby NR off

TYPE II, IV 67 dB 73 dB 61 dB

TYPE I 64 dB 70 dB 58 dB

Tuner section

FM

Tuning range 87.5 -108.0 MHz

Antenna terminal External antenna connector

Intermediate frequency 10.7 MHz

Usable sensitivity 8 dBf

Selectivity 75 dB at 400 kHz

Signal-to-noise ratio 65 dB (stereo),

68 dB (mono)

Harmonic distortion at 1 kHz

0.7% (stereo),

0.4% (mono)

Separation 35 dB at 1 kHz

Frequency response 30 - 15,000 Hz

MW/LW (AEP, UK model)

Tuning range MW: 531 - 1,602 kHz

LW: 153 - 281 kHz

Aerial terminal External aerial connector

Intermediate frequency 10.71 MHz/450 kHz

Sensitivity MW: 30 µV

LW: 50 µV

MW/SW (German model)

Tuning range MW: 531 - 1,602 kHz

SW: 5,950 - 6,205 kHz

Aerial terminal External aerial connector

Intermediate frequency 10.71 MHz/450 kHz

Sensitivity MW: 30 µV

SW: 50 µV

Power amplifier section

Outputs Speaker outputs

(sure seal connectors)

Speaker impedance 4 - 8 ohms

Maximum power output 45 W × 4 (at 4 ohms)

– Continued on next page –

SPECIFICATIONS

MICROFILM

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– 2 –

TABLE OF CONTENTS

1. GENERAL

Location of Controls...............................................................3

Getting Started........................................................................3

Cassette Player .......................................................................4

Radio ......................................................................................4

RDS ........................................................................................5

Voice Drive .............................................................................6

Voice Memo............................................................................7

Other Functions ......................................................................7

CD/MD Unit...........................................................................8

DSP.......................................................................................10

Connections ..........................................................................12

2. DISASSEMBLY

2-1. Cover ................................................................................14

2-2. Front Panel Assy .............................................................. 14

2-3. Sub Panel Assy .................................................................15

2-4. Mechanism Deck..............................................................15

2-5. Super Capacitor Board, Main Board ................................16

2-6. Heat Sink ..........................................................................16

3. ASSEMBLY OF MECHANISM DECK

Housing ................................................................................17

Arm (Suction).......................................................................17

Lever (LDG-A) / (LDG-B)...................................................18

Gear (Loading FT)................................................................18

Guide (C) ..............................................................................19

Mounting Position of Capstan/Reel Motor (M901) .............19

4. MECHANICAL ADJUSTMENTS...........................20

5. ELECTRICAL ADJUSTMENTS

Tape Section .........................................................................20

Tuner Section........................................................................21

6. DIAGRAMS

6-1. Block Diagram –Tape Section– .......................................25

6-2. Block Diagram –Main Section–.......................................27

6-3. IC Pin Description............................................................29

6-4. Circuit Boards Location ...................................................32

6-5. Printed Wiring Board –Main Section (SideA)– ..............33

6-6. Printed Wiring Board –Main Section (Side B)– ..............35

6-7. Schematic Diagram –Main Section (1/5)– .......................37

6-8. Schematic Diagram –Main Section (2/5)– .......................39

6-9. Schematic Diagram –Main Section (3/5)– .......................41

6-10. Schematic Diagram –Main Section (4/5)– .......................43

6-11. Schematic Diagram –Main Section (5/5)– .......................45

6-12. Printed Wiring Boards –Inverter/Sub Section– ................47

6-13. Schematic Diagram –Inverter/Sub Section– ....................47

6-14. Printed Wiring Board –Display Section–.........................49

6-15. Schematic Diagram –Display Section–............................51

7. EXPLODEDVIEWS

7-1. Chassis Section ................................................................58

7-2. Front Panel Section ..........................................................59

7-3. Mechanism Deck Section.................................................60

8. ELECTRICAL PARTS LIST....................................61

General

Outputs Line outputs (2)

Subwoofer output

Power antenna relay

control lead

Power amplifier control

lead

Telephone ATT control

lead

Illumination control lead

Tone controls Bass ±8 dB at 100 Hz

Treble ±8 dB at 10 kHz

Power requirements 12 V DC car battery

(negative ground)

Dimensions Approx. 178 × 50 × 180 mm

(w/h/d)

Mounting dimensions Approx. 182 × 53 × 160 mm

(w/h/d)

Mass Approx. 1.5 kg

Supplied accessories Rotary commander RM-X4V (1)

Microphone (1)

Parts for installation and

connections (1 set)

Front panel case (1)

Design and specifications are subject to change without

notice.

Notes on Chip Component Replacement

•Never reuse a disconnected chip component.

•Notice that the minus side of a tantalum capacitor may be

damaged by heat.

Dolbynoise reduction manufactured under license from Dolby Labo-

ratories Licensing Corporation.

“DOLBY” and the double-D symbol aare trademarks of Dolby

Laboratories Licensing Corporation.

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– 3 –

SECTION 1

GENERAL This section is extracted AEP, UK

model’s from instruction manual.

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http://www.xiaoyu163.com

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– 14 –

2-2. FRONT PANEL ASSY

SECTION 2

DISASSEMBLY

Note : Follow the disassembly procedure in the numerical order given.

2-1. COVER

1

claw

4

cover

2

claw

3

claws

3

Push the bearing (L).

4

front panel assy

1

Push the button (open).

2

Push the bearing (R).

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– 15 –

2-3. SUB PANEL ASSY

2-4. MECHANISM DECK

1

PTT 2.6x6

2

PTT 2.6x6

3

PTT 2.6x6

4

claws

5

claw

6

CN802

7

CN50

0

8

sub panel assy

1

screws

(2.6x6) (C TIGHT

)

2

CN201

3

CN250

4

mechanism deck

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– 16 –

2-5. SUPER CAPACITOR BOARD, MAIN BOARD

2-6. HEAT SINK

6

PTT 2.6x10

0

insulated plate

7

PTT 2.6x10

1

ground point screw

2

CN501

3

bracket (CAP)

4

claws

5

SUPER CAPACITOR board

8

ground point screws

9

MAIN board

7

PTT 2.6x10

5

PTT 2.6x10

!¡

PTT 2.6x10

!™

PTT 2.6x10

9

PTT 2.6x10

8

cord (with connector) (INVERTER)

6

connection cord (MIC)

!£

heat sink

0

cord (with connector)

(ANT)

1

CN551

3

J10

4

CN900

2

Removal the

solder.

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– 17 –

2

Move the arm (suction) in the arrow

direction and fit on projection.

1

Fit the arm (suction) on the shaft.

projection

A

part

C

part

B

part

D

part

8

Hold the hanger by

bending the claw.

6

Fit projection on

D

part.

4

Fit claw on

B

part.

3

Put the housing

under

A

part.

5

Fit projection on

C

part.

1

Install the catcher to the hanger.

2

Install the hanger onto

two claws of the housing.

7

Holder the hanger by bending the claw.

hanger

housing

SECTION 3

ASSEMBLY OF MECHANISM DECK

ARM (SUCTION)

Note : Follow the assembly procedure in the numerical order given.

HOUSING

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– 18 –

gear (LDG-D)

5

gear (loading FT)

6

polyethylene washer

2

tension spring (LD-2)

2

tension spring (LD-1)

gear (LDG-FB)

lever (LDG-A)

hole

4

Align hole in the gear (LDG-D)

with hole the lever (LDG-A).

3

Move the lever (LDG-B)

in the arrow direction.

1

shaft

A

shaft

B

2

Fit the lever (LDG-B) on

shafts

A

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B

and

install it.

3

type-E stop ring 2.0

shaft

A

shaft

B

shaft

C

1

Fit the lever (LDG-A) on

shafts

A

–

C

and install it.

LEVER (LDG-A) / (LDG-B)

GEAR (LOADING FT)

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– 19 –

2

guide (C)

1

three claws

1

precision screws

+P 2x2

capstan/ reel moto

r

30˚

GUIDE (C)

MOUNTING POSITION OF CAPSTAN/REEL MOTOR (M901)

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– 20 –

main board

TP (DOLBY) L (L-CH)

R (R-CH)

test tape

P-4-D400

(400 Hz, 0 dB)

set

level mete

r

PRECAUTION

1. Wipe the following components with an absorbent cotton cloth

moistened with alcohol before adjustment :

PB head Pinch roller

Idler Rubber belt

Capstan

2. Demagnetize the PB head using a head demagnetizer.

3. Be careful not to use a magnetized screwdriver.

4. After the adjustment is completed, lock the adjustment parts

using screws.

5. Unless otherwise specified, make adjustments at the specified

voltage (14.4V).

Torque Measurement

Mode Torque Meter Meter Reading

35 – 65 g • cm

FWD CQ-102C (0.49 – 0.90 oz • inch)

FWD 0.5 – 5.0 g • cm

Back Tension (0.01 – 0.07 oz • inch)

35 – 65 g • cm

REV CQ-102RC (0.49 – 0.90 oz • inch)

REV 0.5 – 5.0 g • cm

Back Tension (0.01 – 0.07 oz • inch)

60 – 200 g • cm

FF, REW CQ-201B (0.83 – 2.78 oz • inch)

Tape Tension Measurement

Mode Tension Meter Meter Reading

FWD CQ-403A more than 60 g

REV CQ-403R (more than 2.12 oz)

SECTION 5

ELECTRICAL ADJUSTMENTS

SECTION 4

MECHANICAL ADJUSTMENTS

See the adjustment location from on page 24 for the adjust-

ment.

TAPE SECTION

Tape Speed Adjustment

Procedure :

1. Put the set into the FWD PB mode.

Specification : Constant speed

Speed checker Frequency counter

– 1 to + 2 % 2,970 to 3,060 Hz

Adjustment Location : See page 24.

DOLBY Level Adjustment

Setting :

SHIFT n3 (PLAY MODE) button (twice) : NR off

Procedure :

1. Put the set into the FWD PB mode.

2. Adjust RV230 (L-CH) and RV240 (R-CH) so that level meter

reading is – 6 ±1 dB (0.35 to 0.44 V).

Adjustment Location : See page 24.

0 dB = 0.775 V

LINE OUT REAR

test tape

WS-48A

(3 kHz, 0 dB)

set

10 k

Ω

speed checker

or

frequency counte

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TEL 13942296513 QQ 376315150 892498299

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Sony XR-C9100R User manual

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