Sony icd bp 220 service manual
This is the 30 pages manual for sony icd bp 220 service manual.
Read or download the pdf for free. If you want to contribute, please upload pdfs to audioservicemanuals.wetransfer.com.
Extracted text from sony icd bp 220 service manual (Ocr-read)
Page 1
2 ICD-BP220 TABLE OF CONTENTS 1. GENERAL·································································· 3 2. DISASSEMBLY 2-1. Sub Block Assy, Upper Lid ············································· 4 2-2. F-SW Board ···································································· 4 2-3. Main Board, P-SW Board ··············································· 5 2-4. PC Board ········································································· 5 3. DIAGRAMS 3-1. Block Diagram ································································ 7 3-2. Printed Wiring Board – Main Section (1/2) – ················· 8 3-3. Printed Wiring Board – Main Section (2/2) – ················· 9 3-4. Schematic Diagram – Main Section (1/3) – ·················· 10 3-5. Schematic Diagram – Main Section (2/3) – ·················· 11 3-6. Schematic Diagram – Main Section (3/3) – ·················· 12 3-7. Schematic Diagram – F-SW Section – ························· 13 3-8. Printed Wiring Board – F-SW Section (1/2) – ·············· 14 3-9. Printed Wiring Board – F-SW Section (2/2) – ·············· 15 3-10. Printed Wiring Board – PC Section – ························· 16 3-11. Schematic Diagram – PC Section – ···························· 17 3-12. Printed Wiring Board – P-SW Section – ···················· 18 3-13. Schematic Diagram – P-SW Section – ······················· 19 3-14. IC Block Diagrams ····················································· 20 3-15. IC Pin Function Description ······································· 21 4. EXPLODED VIEWS 4-1. Upper Lid Assy Section ················································ 23 4-2. Main Board Section ······················································ 24 5. ELECTRICAL PARTS LIST·································· 25 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. *Replacement of IC109 used in this set requires a special tool. -The voltage and waveform of CSP (chip size package) cannot be measured, because its lead layout is different from that of conven- tional IC. -Lead layouts 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. surface Lead layout of conventional ICCSP (chip size package)
Page 2
3 ICD-BP220 SECTION 1 GENERAL This section is extracted from instruction manual. 1MIC (built-in microphone) (12) 2Display window (64) 3FOLDER button (12, 16) 4INDEX/BOOKMARK button (22, 26) 5DISPLAY button (39) 6A-B REPEAT/PRIORITY button (23, 30) 7MENU button (10, 32, 35, 40, 41) 8ERASE button (20) 9xSTOP button (13, 17) q;Speaker qaMIC (PLUG IN POWER) jack (15) qsEAR (earphone) jack (14, 17) qdOPR (operation) indicator (12, 17)qfzREC (record) /STOP button (13, 24) qgX PAUSE button (13, 17) qh.REVIEW/>CUE (fast backward, review/fast forward, cue-selection of menu mode) button (10, 16, 18, 19, 22, 26, 30, 32, 35, 40, 41) qjNxPLAY/STOP -EXECUTE (play/ stop-enter) button (10, 17, 18, 29, 30, 32, 35, 40, 41) qkHOLD switch (38) qlVOL (volume) control (17) w;USB connector for connecting to a computer (48) qa qs qd qf qg qh qj qk ql w; q; 9 8 7 6 5 4 3 2 1 Main unitRear wh wg wf wa ws wd waPLAY SPEED selector (18) wsMIC SENS (microphone sensitivity) selector (14) wdVOR selector (15) wfClip* wgBattery compartment (8) whHook for handstrap (not supplied)