Sony XR-C440 User Manual

XR-C440/C450

SERVICE MANUAL

Ver 1.1 2001.08

Photo: XR-C450

Refer to RM-X2S/X3S SERVICE MANUAL (9-960-039-∏) issued previously for information of remote commander (RM-X2S) supplied with XR-C440.

US Model

Canadian Model

XR-C450

E Model

XR-C440/C450

Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY” and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation.

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS (US model)

POWER OUTPUT AND TOTAL HARMONIC DISTORTION 12 watts per channel minimum continuous average power into 4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more than 1% total harmonic distortion.

Cassette player section

Tape track 4-track 2-channel stereo Wow and flutter 0.08% (WRMS) Frequency response 30 – 18,000 Hz (C440/C450: US, Canadian)

30 – 20,000 Hz (C450: E, Saudi Arabia)

Signal-to-noise ratio

Cassette type Dolby B NR Dolby NR off

TYPE II, IV 67 dB 61 dB TYPE I 64 dB 58 dB

Tuner section

Tuning range US, Canadian model:

87.5 – 107.9 MHz E, Saudi Arabia model: 50 kHz/200 kHz switchable

87.5 – 108.0 MHz (at 50 kHz step)

87.5 – 107.9 MHz (at 200 kHz step)

Model Name Using Similar Mechanism NEW T ape Transport Mechanism T ype

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

0.5% (stereo),

0.3% (mono) Separation 35 dB at 1 kHz Frequency response 30 – 15,000 Hz Capture ratio 2 dB (C450: E, Saudi Arabia)

4 dB (C440/C450: US, Canadian)

— Continued on next page —

MG-25C-136

XR-C440/C450: US, Canadian Model

FM/AM CASSETTE CAR STEREO

FM/MW/SW CASSETTE CAR STEREO

9-925-536-12 Sony Corporation

2001H0500-1 e Vehicle Company C 2001.8 Shinagawa Tec Service Manual Production Group

XR-C450: E Model

AM (MW)

Tuning range US, Canadian model:

530 – 1,710 MHz E, Saudi Arabia model: 9 kHz/10 kHz switchable 531 – 1,602 kHz (at 9 kHz step) 530 – 1,710 kHz (at 10 kHz step)

SW (C450: E, Saudi Arabia)

Tuning range SW tuning interval:

SW1: 2,940 – 7,735 kHz SW2: 9,500 – 18,135 kHz

(except for 10,140 – 11,575 kHz) Antenna terminal External antenna connector Intermediate frequency 10.71 MHz/450 kHz Sensitivity 30 µV (C440/C450: US, Canadian)

40 µV (C450: E, Saudi Arabia)

TABLE OF CONTENTS

1. GENERAL

Location of Controls (XR-C440)....................................... 3

Location of Controls (XR-C450)....................................... 4

Installation (XR-C440/XR-C450: E, saudi Arabia)........... 6

Installation (XR-C450: US, Canadian).............................. 7

Installing the rotary remote (XR-C440) ............................ 8

Connection (XR-C440) ..................................................... 9

Connection (XR-C450) ..................................................... 11

2. DISASSEMBLY............................................................ 14

3. ASSEMBLY OF MECHANISM DECK ............. 16

4. MECHANICAL ADJUSTMENTS ......................... 19

Power amplifier section

Outputs Speaker outputs

Speaker impedance 4 – 8 ohms Maximum power output 35 W × 4 (at 4 ohms)

General

Outputs Power antenna control lead

Tone controls Bass ±8 dB at 100 Hz

Power requirements 12 V DC car battery Dimensions Approx. 188 × 58 × 181 mmm

Mounting dimensions Approx. 182 × 53 × 164 mmm

Mass Approx. 1.2 kg (2 lb. 10 oz.) Supplied accessories Parts for installation and connections (1 set)

Design and specifications are subject to change without notice.

(sure seal connectors)

Line out

Rear (1) Front (1) (C450)

Treble ±8 dB at 100 Hz

(negative ground)

/2 × 2 3/8 × 7 1/4 in.)

(w / h / d)

(7 1/4 × 2 1/8 × 6 1/2 in.)

(w / h / d)

Front panel case (1)

Rotary remote

RM-X2S (C440)

Wireless Remote

Commander RM-X40 (C450: E, Saudi Arabia)

5. ELECTRICAL ADJUSTMENTS

Test Mode .......................................................................... 19

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

Tuner Section (XR-C450: E, Saudi Arabia) ...................... 20

6. DIAGRAMS

6-1. Printed Wiring Board –Main Section– .............................. 23

6-2. Schematic Diagram –Main Section–................................ 25

6-3. Printed Wiring Board –Key Section– (XR-C440) ............ 29

6-4. Schematic Diagram –Key Section– (XR-C440) ............... 31

6-5. Printed Wiring Board –Key Section– (XR-C450) ............ 33

6-6. Schematic Diagram –Key Section– (XR-C450) ............... 35

6-7. IC Pin Function Description.............................................. 39

7. EXPLODED VIEWS .................................................. 41

8. ELECTRICAL PARTS LIST.................................. 45

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270 ˚C during

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.

– 2 –

SECTION 1

GENERAL

(XR-C440)

This section is extracted from instruction manual.

– 3 –

(XR-C450)

– 4 –

(XR-C450: E, Saudi Arabia)

– 5 –

(XR-C440/XR-C450: E, Saudi Arabia)

– 6 –

(XR-C450: US, Canadian)

– 7 –

– 8 –

(XR-C440)

– 9 –

– 10 –

(XR-C450)

(E, Saudi Arabia model)

– 11 –

(E, Saudi Arabia model)

– 12 –

(US, Canadian model)

(E, Saudi Arabia model)

– 13 –

SECTION 2

DISASSEMBLY

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

FRONT PANEL ASS’Y

Push the button (release).

Remove the front panel ass’y to the direction of the arrow A.

COVER ASS’Y

cover ass’y

– 14 –

+ 30 hidden pages