Sony icf c 1200 service manual

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2 ICF-C1200 Specifications ........................................................................\ ... 1 1. GENERAL ...................................................................... 2 2. DISASSEMBLY 2-1. Main Board ................................................................. 3 3. ELECTRICAL ADJUSTMENTS 3-1. Tuner Section .............................................................. 4 4. DIAGRAMS 4-1. Explanation of IC Terminals ....................................... 6 4-2. Block Diagram ............................................................ 7 4-3. Printed Wiring Boards -“ Main Section (1/2) (Side A) -“ .................................. 8 4-4. Printed Wiring Boards -“ Main Section (2/2) (Side B) -“ .................................. 9 4-5. Schematic Diagram ................................................... 10 5. EXPLODED VIEWS 5-1. Main Section ............................................................. 13 6. ELECTRICAL PA RTS LIS T ................................... 14 TABLE OF CONTENTS SECTION 1 GENERAL Notes on chip component replacement - Never reuse a disconnected chip component. - Notice that the minus side of a tantalum capacitor may bedamaged by heat. LOCATION AND FUNCTION OF CONTROLS This section is extracted from instruction manual. r UNLEADED SOLDER Boards requiring use of unleaded solder are printed with thelead-free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.) : LEAD FREE MARK Unleaded solder has the following characteristics. - Unleaded solder melts at a temperature about 40 °C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 °C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! - Strong viscosity Unleaded solder is more viscous (sticky, less prone toflow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. - Usable with ordinary solder It is best to use only unleaded solder but unleaded soldermay also be added to ordinary solder.

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3 ICF-C1200 SECTION 2 DISASSEMBLY 2-1. MAIN BOARD 2 Screws (1.4X6 tapping) 4 Screws (1.4) 5 Claw 5 Claw 5 Claw 7 Remove solder (three places)RedCabinet (rear) ASSY 6 8 3 1 5 Claw Cabinet (front) ASSY Main board Knob (HOLD)ANT101 S301 Brown - Caution during assembly Align the hold switch(S301) to the knob(HOLD). Black Note : Follow the disassembly procedure in the numerical order given.