Sony XR-C2600 Bedienungsanleitung

SERVICE MANUAL

FM/AM CASSETTE CAR STEREO

E Model

SPECIFICATIONS

XR-C2600

Model Name Using Similar Mechanism XR-1100

Tape Transport Mechanism Type MG-36SZ10-32

Cassette player section

Tape track 4-track 2-channel stereo

Wow and flutter 0.13 % (WRMS

Frequency response 30 – 15,000 Hz

Signal-to-noise ratio 55 dB

Tuner section

Tuning range FM tuning interval:

50 kHz/200 kHz

switchable

87.5 – 108.0 MHz

(at 50 kHz step

87.5 – 107.9 MHz

(at 200 kHz step

Antenna terminal External antenna connector

Intermediate frequency 10.7 MHz

Usable sensitivity 9 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

Tuning range AM tuning interval:

9 kHz/10 kHz switchable

531 – 1,602 kHz

(at 9 kHz step

530 – 1,710 kHz

(at 10 kHz step

Antenna terminal External antenna connector

Intermediate frequency 10.7 MHz/450 kHz

Sensitivity 30 µV

Power amplifier section

Outputs Speaker outputs

(sure seal connectors

Speaker impedance 4 – 8 ohms

Maximum power output 45 W × 4 (at 4 ohms

General

Outputs Audio output

Power antenna relay

control lead

Power amplifier control

lead

Telephone ATT 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. 188 × 58 × 182 mm

(w/h/d

Mounting dimensions Approx. 182 × 53 × 163 mm

(w/h/d

Mass Approx. 1.2 kg

Supplied accessories Parts for installation and

connections (1 set

Front panel case (1

Design and specifications are subject to change

without notice.

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270 ˚C dur-

ing repairing.

• Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering

or unsoldering.

Notes on chip component replacement

• Never reuse a disconnected chip component.

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

aged by heat.

TABLE OF CONTENTS

1. GENERAL

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

Setting the Clock ............................................................. 3

Installation....................................................................... 4

Connections ..................................................................... 5

2. DISASSEMBLY ......................................................... 7

3. MECHANICAL ADJUSTMENTS ....................... 10

4. ELECTRICAL ADJUSTMENTS

Test Mode ........................................................................ 10

Tape Deck Section .......................................................... 10

Tuner Section .................................................................. 12

5. DIAGRAMS

5-1. Note for Printed Wiring Boards and

Schematic Diagrams ....................................................... 14

5-2. Printed Wiring Board – MAIN Board – ......................... 15

5-3. Schematic Diagram – MAIN Board (1/2) – ................... 16

5-4. Schematic Diagram – MAIN Board (2/2) – ................... 17

5-5. Printed Wiring Board – KEY Board –........................... 18

5-6. Schematic Diagram – KEY Board –............................... 19

5-7. IC Pin Function Description ........................................... 21

6. EXPLODED VIEWS ................................................ 23

7. ELECTRICAL PARTS LIST ............................... 26

SECTION 1

GENERAL This section is extracted from

instruction manual.

Location of controls

XR-C2600

–

MODE

DSPL

OFF

DIR D-BASS

ENTER

SOUND

RELEASE

123456

SOURCE

SEEK/AMS

REP SHUF

qd SEEK/AMS –/+ (cursor left/right) buttons

7, 9, 10, 11, 13

seek 10

Automatic Music Sensor 13

manual search 13

qf Reset button (located on the front side

of the unit behind the front panel) 6

qg ENTER button 7, 9, 10, 11, 13

qh Frequency select switch

(located on the bottom of the unit)

See “Frequency select switch” in the

Installation/Connections manual.

qj Number buttons

During radio reception

Preset number select 10

During CD/MD playback:

(1) REP 14

(2) SHUF 14

qk OFF button*6

*Warning when installing in a car

without ACC (accessory) position on

the ignition key switch

Be sure to press (OFF) on the unit for two

seconds to turn off the clock display after

turning off the engine.

When you press (OFF) momentarily, the

clock display does not turn off and this

causes battery wear.

Refer to the pages listed for details.

1MENU button 7, 9, 10, 11, 13

2Volume control dial

3SOURCE (TUNER/CD/MD) button

9, 10, 12

4PRST/DISC +/– (cursor up/down) buttons

7, 9, 10, 11, 13

During radio reception:

Preset stations select 10

During CD/MD playback:

Disc change 13

5DSPL (display mode change) button

8, 12, 13

6MODE button

During radio reception:

BAND select 9, 10

During CD or MD playback:

CD/MD unit select 12

7Z(eject) button 8

8Display window

9m/M(fast winding)/DIR (tape

transport direction change) buttons 8

0D-BASS button 12

qa SOUND button 11

qs RELEASE (front panel release) button

6, 15

Setting the clock

The clock uses a 12-hour digital indication.

Example: To set the clock to 10:08

Press (MENU), then press either side of

(PRST/DISC) repeatedly until “CLOCK”

appears.

1Press (ENTER).

The hour indication flashes.

2Press either side of (PRST/DISC) to set

the hour.

3Press + side of (SEEK/AMS).

The minute indication flashes.

4Press either side of (PRST/DISC) to set

the minute.

Press (ENTER).

The clock starts.

After the clock setting is complete, the

display returns to normal playback mode.

SECTION 2

DISASSEMBLY

SUB PANEL

MECHANISM DECK (MG-36SZ10-32)

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

1three claws

1two claws

2sub panel

2two screws

(BTP2.6 × 6)

1connector

(CN350)

1connecto

(CN300)

3mechanism dec

(MG-36SZ10-32)

2two screws

(BTP2.6 × 6)

MAIN BOARD

BRACKET (MD)

2two ground point screws

4main board

1claw

3screw

(BTP2.6 × 6)

3two screws

(BTP2.6 × 6)

1claw 1claw

1claw

2four screws

(B2.6 × 4)

3brac et (MD)

MOTOR ASS’Y (CAPSTAN/REEL) (M901)

HEAT SINK

1seven screws

(BTP2.6 × 10)

2hear sin

1two screws

(P2 × 2.5)

4motor ass’y (capstan/reel)

(M901)

Note: When installing motor,

adjust the screw and

screw hole of motor.

3sub belt (C)

2main belt

Mode Tension Meter Meter Reading

Forward CQ-403A 5.89 mN•m

more than 60 g

Reverse CQ-403R (more than 2.12 oz)

SECTION 3

MECHANICAL ADJUSTMENTS SECTION 4

ELECTRICAL 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

Mode Torque Meter Meter Reading

2.46 – 5.39 mN•m

Forward CQ-102C 25 – 55 g•cm

(0.35 – 0.76 oz•inch)

Forward 0.15 – 0.39 mN•m

Back Tension CQ-102C 1.5 – 4 g•cm

(0.02 – 0.06 oz•inch)

2.46 – 5.39 mN•m

Reverse CQ-102RC 25 – 55 g•cm

(0.35 – 0.76 oz•inch)

Reverse 0.15 – 0.39 mN•m

Back Tension CQ-102RC 1.5 – 4 g•cm

(0.02 – 0.06 oz•inch)

4.91 – 14.70 mN•m

FF, REW CQ-201B 50 – 150 g•cm

(0.69 – 2.08 oz•inch)

•TapeTension Measurement

TEST MODE

This set have the test mode function. In the test mode, FM Auto

Seek/Stop Level andAMAuto Seek/Stop Level Check can be per-

formed easier than it in ordinary procedure.

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 presett [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.

Push the [OFF] button.

See the adjustment location from on page 13 for the

adjustment.

TAPE DECK SECTION 0 dB= 0.775 V

1. The adjustments should be performed in the order given in

this service manual.

2. The adjustments should be performed for both L-CH and

R-CH.

TestTape

PB Head Azimuth Adjustment

Procedure:

1. Put the set into the FWD PB mode.

2. Turn the screw and check the output peak value. Adjust the

screw so that the peak value in channels L and R coincides

within 2 dB.

Type Signal Used for

P-4-A063 6.3 kHz, –10 dB head azimuth adjustment

WS-48A 3 kHz, 0 dB tape speed adjustment

screw

position

L-CH

pea

within

2 dB

output

level

L-CH

pea

R-CH

pea

within

2 dB

angl

R-CH

pea

level

meter

test tape

P-4-A063

(6.3 Hz, –10 dB)

set

AUDIO OUT jac (CN400

)

10 Ω

–

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