Sony icd b 16 service manual

Page 1

2 TABLE OF CONTENTS 1. SERVICE NOTE ................................................................ 3 2. GENERAL Index to Parts and Controls ..................................................... 4 3. DISASSEMBLY 3-1. Case (Upper) Assy .............................................................. 5 3-2. F-SW Board, P-SW Board .................................................. 6 3-3. Main Board ........................................................................\ . 6 4. DIAGRAMS 4-1. IC Pin Description ............................................................... 7 4-2. Block Diagram .................................................................... 9 4-3. Printed Wiring Board – Main Section – ............................ 11 4-4. Printed Wiring Board – F-SW Section – ........................... 12 4-5. Printed Wiring Board – P-SW Section – ........................... 13 4-6. Schematic Diagram – Main Section – ............................... 14 4-7. IC Block Diagrams ............................................................ 15 5. EXPLODED VIEWS 5-1. Case Section ...................................................................... 16 5-2. Main Board Section .......................................................... 17 6. ELECTRICAL PARTS LIST ........................................ 18 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. ICD-B16/B26 - UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead- 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 to flow) 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 solder may also be added to ordinary solder.