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NW-E8P
Specifications ............................................................................... 1
1. SERVICING NOTE .......................................................... 2
2. GENERAL .......................................................................... 3
3. DISASSEMBLY
3-1. Driver ASSY (SP2), Arm Lid (R), Holder Lid (R) ......... 6
3-2. Main Board, Power Board, LCD Unit ............................ 6
3-3. Driver ASSY (SP1), Arm Lid (L), Holder Lid (L) ......... 7
4. TEST MODE ...................................................................... 8
5. DIAGRAMS
5-1. Block Diagrams ............................................................ 10
5-2. Printed Wiring Boards (Main Section) ......................... 11
5-3. Schematic Diagram (Main Section (1/2)) ..................... 12
5-4. Schematic Diagram (Main Section (2/2)) ..................... 13
5-5. Printed Wiring Boards (Power Section) ........................ 14
5-6. Schematic Diagram (Power Section) ............................ 15
6. EXPLODED VIEW
6-1. L-CH Section ................................................................ 17
6-2. R-CH Section ................................................................ 18
7. ELECTRICAL PARTS LIST ....................................... 19
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.
TABLE OF CONTENTS
- Replacement of CXD9644GG (IC710) used in the set requires a special
tool.
z 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.
z USABLE FORMAT
Use ISO9660 Level 1 format.
SECTION 1
SERVICING NOTE
Page 2
3
NW-E8P
SECTION 2
GENERAL
LOCATION AND FUNCTION OF CONTROLS
This section is extracted from
instruction manual.
(front of the right player) Display
1 AVLS indication
2 MEGA BASS indication
3 Battery remain indication
4 Play mode indication
5 Text/graphic information display
1 DISPLAY button
2 VOLUME+/-“ button
3 HOLD switch
4 Jog lever
5 Dedicated USB jack
6 Display
7 MEGA BASS/AVLS button
8 P.MODE button
9 Ear pad
0 Battery compartment
1
2
34 56
7
8
(rear of the left player)
9
0
12
3
4
5
