Sony MZ-N707 - page 54

MZ-N707

Pin No. Pin Name I/O Description

247 FLASHVDD —Power supply terminal (for the built-in flash memory) (+2.4V)

248 FLASHVSS —Ground terminal (for the built-in flash memory)

249 to

256 NC — Not used

Contents

Main SERVICE MANUAL PORTABLE MINIDISC RECORDER US Model Canadian Model AEP Model UK Model Continued on next page SPECIFICATIONS Battery life TABLE OF CONTENTS 1. SER VICING NO TES 2. GENERAL 3. DISASSEMBLY 4. TEST MODE 5. ELECTRICAL ADJUSTMENTS 6. DIAGRAMS 8. ELECTRICAL P AR TS LIST 7. EXPLODED VIEWS OPTICAL PICK-UP FLEXIBLE BOARD SECTION 1 SERVICING NOTES SECTION 2 GENERAL instruction manual. 12 11 10 SECTION 3 DISASSEMBLY 3-1. DISASSEMBLY FLOW MZ-N707 3-2. CASE (LOWER) 3-3. UPPER PANEL SECTION 3-4. LCD MODULE, UPPER PANEL SUB ASSY 3-5. MECHANISM DECK (MT-MZN707-177) 3-6. SET CHASSIS (5192) ASSY 3-7. MAIN BOARD 3-8. OP SERVICE ASSY (LCX-5R) 3-9. HOLDER ASSY 3-10. DC MOTOR (SLED) (M602) 3-11. DC SSM18B MOTOR (SPINDLE) (M601), DC MOTOR (OVER WRITE HEAD UP/DOWN) (M603) OPERATION IN SETTING THE TEST MODE SECTION 4 TEST MODE OUTLINE SETTING METHOD OF TEST MODE Ver 1.100 00 3 RELEASING THE TEST MODE CONFIGURATION OF TEST MODE MANUAL MODE [Adjusted value write] Manual 0 00 [MENU] OVERALL ADJUSTMENT MODE Address & Adjusted Value Display Jitter Value & Adjusted Value Display C68S1B 0 11 0FEJ1B 0 11 063B1B 0 11 081A1B 0 11 000F1B 0 11 RESET THE ERROR DISPLAY CODE SOUND SKIP CHECK RESULT DISPLAY MODE P**R** 0 00 EIB ** 0 00 Stat** 0 00 Adrs** 0 00 BEmp** 0 00 ###### 0 00 P**R** 0 00 BOvr** 0 00 Bful** 0 00 Rtry** 0 00 ###### 0 00 ** 0 04 FF ** 0 04 rPLAY ** 0 04 P**R** 0 00 Page ResOK? 0 21 r SECTION 5 ELECTRICAL ADJUSTMENTS Res*** 0 21 Reset! 0 21 OUTLINE AbcdGn ** 3 36 BatFlg ** 7 41 NiRec0 ** 7 71 NiRec1 ** 7 72 NiRec2 ** 7 73 NiPb 2 ** 7 78 NiPb 3 ** 7 79 NiPb 4 ** 7 81 V3 dat ** 8 66 V4 num ** 8 67 VclPWM ** 7 62 VchPWM ** 7 63 V6 num ** 8 73 V6 dat ** 8 74 VLpwmL ** 7 64 VLpwmH ** 7 65 RECpwL ** 7 66 RECpwH ** 7 67 TEMPERATURE CORRECTION Laser 0 10 LrefPw ** 0 11 HrefPw ** 0 12 SetTmp ** 0 15 WritPw ** 0 13 IC901 Adjustment/checking and Connection Location: TP ( MAIN Board (Conductor Side) TP (+) Assy** 0 00 : Left side = MO overall adjustment information : MO overall adjustment completed : Manual adjustment exists (overall adj. not completed) : Not adjusted Rifht side = CD overall adjustment information Assy11 0 00 CD RUN X XX *** NG 0 00 CD OK 0 00 MO RUN X XX r REWRITING THE PATCH DATA AT REPLACEMENT OF MAIN BOARD OR NONVOLATILE MEMORY (IC804) Page Page MM RI A CLV MON U SECTION 6 DIAGRAMS 6-1. BLOCK DIAGRAM SERVO/USB Section 6-2. BLOCK DIAGRAM AUDIO Section F B C SIGNAL PATH : PLAYBACK : REC (ANALOG IN) : REC (DIGITAL IN) 6-3. BLOCK DIAGRAM DISPLAY/KEY CONTROL/POWER SUPPLY Section F D E + 6-4. NOTE FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAMS A B C D E F G H I 1 2 3 4 5 6 7 8 9 10 11 6-5. PRINTED WIRING BOARD MAIN Board (Component Side) :Uses unleaded solder. Semiconductor Location D701 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 11 Ref. No. Location 6-6. PRINTED WIRING BOARD MAIN Board (Conductor Side) :Uses unleaded solder. Semiconductor Location (Page 39) (Page 41) (2/4) (Page 38) (3/4) 6-9. SCHEMATIC DIAGRAM MAIN Board (3/4) See page 42 for Waveforms. 38) 41) 39) C305 (Page 38) 1 Vp-p 100 mVp-p s 5.67 ns Waveforms 88.6 ns 20.8 ns 200 mVp-p 354 ns IC Block Diagrams IC301 AK5354VT-E2 IC302 TA2131FL (EL) IC303 NJM2173AV (TE2) IC501 SN761057A IC551 SC111258FCR2 + 1 2 CE GND 3 IC601 XPC18A22AFCR2 IC702 XC6367A361MR IC901 XPC18A32FCR2 6-11. IC PIN FUNCTION DESCRIPTION Page Page Page Page Page Page SECTION 7 EXPLODED VIEWS 7-2. CHASSIS SECTION Page Page Page MZ-N707 SECTION 8 ELECTRICAL PARTS LIST