Sony xr c 450 service manual

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sony xr c 450 service manual

Extracted text from sony xr c 450 service manual (Ocr-read)


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– 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 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 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.

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– 3 – SECTION 1 GENERAL This section is extracted from instruction manual. (XR-C440)