– 2 –
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.
TABLE OF CONTENTS1. 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
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.