Sony XR-C440 Table of Contents General, Assembly of Mechanism Deck, Electrical Adjustments

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)
Power amplifier section
Outputs	Speaker outputs
	(sure seal connectors)
Speaker impedance	4 – 8 ohms
Maximum power output	35 W ⋅ 4 (at 4 ohms)
General
Outputs	Power antenna control lead
	Line out
	Rear (1)
	Front (1) (C450)
Tone controls	Bass ±8 dB at 100 Hz
	Treble ±8 dB at 100 Hz
Power requirements	12 V DC car battery
	(negative ground)
Dimensions	Approx. 188 ⋅	58 ⋅ 181 mmm
	(7 1/2 ⋅ 2 3/8 ⋅	7 1/4 in.)
	(w / h / d)
Mounting dimensions	Approx. 182 ⋅	53 ⋅ 164 mmm
	(7 1/4 ⋅ 2 1/8 ⋅	6 1/2 in.)
	(w / h / d)
Mass	Approx. 1.2 kg (2 lb. 10 oz.)
Supplied accessories	Parts for installation and connections (1 set)
	Front panel case (1)
	Rotary remote

RM-X2S (C440)

Wireless Remote

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

Design and specifications are subject to change without notice.

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
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.

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