Sony icd v 21 service manual

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Ñ 2 Ñ TABLE OF CONTENTS SERVICE NOTE Notes on chip component replacement ·Never reuse a disconnected chip component. ·Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing ·Keep the temperature of soldering iron around 270 ûC 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. SERVICING NOTE ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááá 2 1. GENERAL ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááááááááááááá 3 2. DISASSEMBLY 2-1. MAIN board ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááááááááááááááááááá 4 3. DIAGRAMS 3-1. IC Block Diagrams ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááááááááá 5 3-2. Printed Wiring Board Ñ MAIN Section Ñ ááááááááááááááááááááááá 6 3-3. Schematic Diagram Ñ MAIN Section Ñ áááááááááááááááááááááááááá 9 3-4. IC Pin Functions ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááááááááááá 12 4. EXPLODED VIEWS áááááááááááááááááááááááááááááááááááááááááááááááááá 15 5. ELECTRICAL PARTS LIST ááááááááááááááááááááááááááááááááááá 16

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ICD-V21 SECTION 2 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. SECTION 3 DIAGRAMS Ñ 3 Ñ Ñ 4 ÑÑ 5 Ñ 2-1. MAIN board SECTION 1 GENERAL FRONT SIDE 3-1. IC BLOCK DIAGRAMS IC101 MSM6588LGS-2K D3 10 D2 9 RSEL1 30 RSEL2 31 D1 8 D0 7 WR 1 RD 2 CE 3 MCUM 6 RESET 44 MON 42 XT 37 XT 38 MIN 22 MOUT 21 FIN 14 AOUT 13 FOUT 12 ADIN 11 SG 18 20 Stage Address Counter Address Controller DV DD 39 DV DD' 17 AV DD 16 DGND 24 AGND 23 TEST 43 TEST 33 TEST 32SAD 27 SAS 26 TA S 25 RWCK 41 WE 40 CS1 28 CS2 29 CS3 (STBY) 34 CS4 (RSEL0) 35 DI/O 36 TEST 4 TEST 5 OSC LPF _ +Date I/OI/OCS4 20-bit Address Register 20-bit Stop Address Register 20-bit Comparator ADPCM Analyzer/Synthsizer Register Contoroller 12 bit DAC 12 bit ADC SG Circuit MCU I/F Timing Controller Status Register LIN 20 LOUT 19 AMON 15 _ + RSEL0 1REC/PB (OPB) LAMP 2LCD window 3Built-in MIC 4ERASE button 1 2 3 4 5 7 6 !¼ !Á 8 9 !ª REAR SIDE5SPECIAL MESSAGE button 6Hand strap 7REC START/STOP button 8VOL knob 9Jog lever !¼BEEP/SHUFFULE button!ÁSpeaker !ªHOLD knob Remove the three claws 3 Front panel assy 4 Main board 1 Lid, battery case 2 Screw (B 1.7 ´ 4)