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NW-MS6
SERVICE MANUAL Chinese Model
Ver 1.0 2001.06
SPECIFICATIONS
Recording time (when using the Battery life
supplied 32MB “MagicGate Memory
Approx. 4 hours (continuous playback)
Stick”)
Dimensions (approx.)
Approx. 30 min. (132kbps)
Approx. 40 min. (105kbps)
36 × 81.4 × 14.1 mm (1 7/16 × 3 1/4 × 9/16 inches)
Approx. 60 min. (66kbps)
(w/h/d, projecting parts not included)
Sampling frequency response
Mass (approx.)
44.1kHz
67g (2.4 oz) (includes “Memory Stick” and battery
NC-6WM)
Recording fo
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NW-MS6 TABLE OF CONTENTS Other features •Compact size, light weight. •Skip-proof: you can enjoy uninterrupted enjoyment of music during physical activities such as 1. SERVICING NOTES ............................................... 3 jogging or commuting. •Approximately 4 hours of continuous playback with a rechargeable nickel-cadmium battery. •Recordable time: up to 30 min., 40 min., 60 min.**, on the supplied 32MB “MagicGate Memory 2. GENERAL ................................................
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NW-MS6 SECTION 1 SERVICING NOTES • NOTE FOR REPLACING THE EEPROM (IC6002) In case of replacing the EEPROM (IC6002) when repairing this set, it is necessary to write the setting for destination. When replacing the EEPROM (IC6002), write the setting for destination, referring to “4. TEST MODE, Items to Check in the Test Mode, 3-2. Writing Destination”. • Replacement of MBM29LV400BC-90PBT (IC5000), HY62UF16201ALLF (IC5600), CXD9534BGG (IC7001) and CXD1859GA (IC8000) used in this set requires a sp
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Other Information NW-MS6 SECTION 2 This section is extracted from instruction manual. GENERAL (rear) Looking at the 6 q; controls qa 7 Network Walkman (front) 8 9 1 2 qs qd 3 6 i (Headphones/earphones) jack (page 11) 4 7 Hole for attaching the strap (The strap is not supplied) 8 HOLD switch (page 16) 5 9 MEGA BASS/AVLS button (page 14) 0 VOLUME +/– buttons (page 11, 16) qa Dedicated USB jack (page 9) qs MENU button (page 13, 16-22) 1 Access lamp (page 9) qd DISPLAY button (page 12, 15) 2 Sees
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NW-MS6 SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW Set 3-2. Case block assy 3-3. Case 3-4. Guide (LED) 3-5. Chassis (main) assy 3-6.“Console unit”, 3-7. Console assy 3-8. Console board , “Sub board” “Main board” Note: Follow the disassembly procedure in the numerical order given. 3-2. CASE BLOCK ASSY 1 tapping screw 4 case block assy (M1.4 × 3.5) 3 Remove the strap shaft assy rotating in the direction of arrow A. A 2 tapping screw (
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NW-MS6 3-3. CASE console unit knob (hold) console unit switch knob (hold) 1 Inclining the console unit in the direction of arrow, remove the switch from the knob (hold). 3 case 2 Take off the console flexible board from the case. Note: Take care not to break the console flexible board when taking it off. 6
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NW-MS6 3-4. GUIDE (LED) 7 Remove the guide (LED) in the direction of arrow B. 5 two claws B 6 cover (side) 4 screw (M1.4) A 3 label 1 Open the lid (PC) in the direction of arrow A. 2 tapping screw (M1.4 × 3.5) 3-5. CHASSIS (MAIN) ASSY 9 Open the battery case lid assy in the direction of arrow A. 3 tapping screw (M1.4 × 3.5) 2 lid (eject) assy A q; MI screw (M1.4) 7 four claws 4 guide (eject lid) section qa battery case lid assy 5 tapping screw (M1.4 × 3.5) 8 two claws qs board section qd
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NW-MS6 3-6. “CONSOLE UNIT”, “SUB BOARD”, “MAIN BOARD” 4 console unit 3 console flexible board (CN300) 1 connector (CN200) 6 MAIN board 2 5 SUB board 3-7. CONSOLE ASSY 5 console assy A 3 Remove the CONSOLE board in the direction of arrow A. adhesive sheet (LCD 1) 2 three claws 4 chassis (LCD) 1 Raise up three claws in the direction of arrow. Note: Make it sure to use the new adhesive sheet (LCD 1) when the console assy is installed. 8
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NW-MS6 3-8. CONSOLE BOARD 1 window (LCD) 2 button (play) 3 CONSOLE board 9
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NW-MS6 SECTION 4 TEST MODE [Preparation] Checking consumed electric current is one of the items to check. Connect an ammeter before setting the test mode. (Refer to the following figure) regulated dc ammeter power supply + + – – 1.23Vdc – MAIN BOARD (Conductor Side) – battery terminal (+) battery terminal (–) 43 56 R9015 C9007 R8103 120 119 117 113 109 108 105 102 99 96 93 SL0120 R9019 R8102 1 118 116 114 110 107 104 101 98 95 92 R8607 3 2 115 112 111 116 103 100 97 94 91 R8104 56 4 82 R6901
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NW-MS6 [Flow Chart of Operations in the Test Mode] Enter the test mode 1. ROM/RAM Self-check 2. Display of version and destination [VOLUME+] key [VOLUME--] key [DISPLAY] key 3. Writing destination 8. Sleep mode (Checking voltage and (Checking consumed electric current) consumed electric current) LCD all lit any key [MENU] key [DISPLAY] key Waking up with the normal mode 4. Checking the rated (Waking up with the test mode, if voltage LCD all off the short lands (SL0120) have [MENU] key been sh
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NW-MS6 3. Writing Destination (Checking Voltage and Consumed Electric Current) After entering this mode, display of version and destination blinks. (The LCD back light turns off) 3-1. Checking voltage and consumed electric current Note: Perform checking voltage and consumed electric current with the LCD back light off. Specified value : VDDCORE voltage : 1.8 to 2.0 V (voltage between TP9002 (VDDCORE) and TP (GND)) VDDIO2 voltage : 2.7 to 2.9 V (voltage between TP9003 (VDDIO2) and TP (GND)) Consu
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NW-MS6 6. USB Self-check The indication is displayed as below after entering this mode. display 3.USB > This mode is not used in servicing. Press the [MENU] key to go to the next RTC self-check. 7. RTC Self-check The indication is displayed as below after entering this mode. display 4.RTC > The check on writing/reading real time clock is performed automatically and when the result is OK, “4. RTC >OK” is displayed on the LCD and LCD back light turns on. If the result is NG, “4. RTC >NG” is displa
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NW-MS6 MEMO 14
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NW-MS6 SECTION 5 DIAGRAMS 5-1. BLOCK DIAGRAM – MAIN Section – DSP, MAGIC GATE CORE, MEMORY STICK INTERFACE, CN6000 D/A CONVERTER HEADPHONE AMP USB INTERFACE MEMORY STICK IC3100 IC3200 IC8000 122 4 MS DIO 22 DIO SDATA 8 PCMO 198 4 J3301 IN B OUTB R-CH 8X ∆∑ POWER MS SCLK 21 SCLK SERIAL V OUTL LPF 14 21 4 + D0 – D15 D0 – D15 i BICK INTERPOLATOR MODULATOR AMP INPUT 2 BCK 204 3 MS BS 20 BS INTERFACE LRCK BEEP OUTB LRCK 205 5 23 R-CH R-CH 6 MS INS 26 INS BASS 3 BOOST MCLK BEEP DE – EMPHASIS VCC RE
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NW-MS6 5-2. BLOCK DIAGRAM – DISPLAY/POWER SUPPLY Section – XRST2 C (Page 15) SAM RST LEVEL SHIFT SWITCHING B Q7502, 7503 IC7500 (2/4) +1.9V REGULATOR (Page 15) IC9006 DC/DC CONVERTER D9002, L9001, Q9008 SAM RST 61 D9015 RESET SIGNAL XCRST 109 GENERATOR LED6000 CE LED DRIVE IC9007 ACCESS 89 ORANGE 3 ERROR Q6007 EXT WAKE4 66 PWM BUFFER, FB INDICATOR 5 1 AMP COMPARATOR DRIVER IC7800 PWM/PFM OSC POWER CONTROL CONTROLLER CONSOLE UNIT IC9001 VDDIO2 VDDIO2 D9016 L9007 L9006 VCO VC VCOUT L1 POWER SWI
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NW-MS6 5-3. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS Note on Printed Wiring Boards: Note on Schematic Diagram: •X : parts extracted from the component side. • All capacitors are in µ F unless otherwise noted. pF: µµ F •Y : parts extracted from the conductor side. 50 WV or less are not indicated except for electrolytics • : Pattern from the side which enables seeing. and tantalums. 1 (The other layers' patterns are not indicated.) • All resistors are in Ω and /4 W or less unles
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NW-MS6 • Waveforms – MAIN board – – SUB board – 1 IC7001
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NW-MS6 5-4. PRINTED WIRING BOARDS – MAIN Section – :Uses unleaded solder. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 LED6000 CN6002 • Semiconductor (FRONT VIEW) Location A MAIN BOARD (COMPONENT SIDE) Ref. No. Location D1001 I-6 LED6000 D6000 H-11 (ACCESS INDICATOR) R6022 D9001 D-12 R6591 KA Q6007 D9002 E-11 IC6002 D9004 E-10 85 CN6002 C6000 (USB) D9005 D-11 B Q6003 Q6004 D9006 D-10 D9007 G-9 Q6000 D9008 D-10 D9009 D-10 5 1 1 4 L6002 D9010 D-10 Q9005 D9014 G-10 1 IC9004 Q6001 D9015 D-11 + C9019 R9022
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NW-MS6 5-5. SCHEMATIC DIAGRAM – MAIN Section (1/4) – • See page 18 for Waveforms. • See page 27 for IC Block Diagram. (Page 23) (Page 24) (Page 21) (Page 22) 20 20
