Servicing Notes - Sony NW-WM1A Service Manual

NW-WM1A/WM1Z
The SERVICING NOTES contains important information for servicing. Be sure to read this section before repairing the unit.
ABOUT REUSE OF BUILT-IN THE RECHARGEABLE
LITHIUM ION BATTERY
It cannot reuse, when the built-in rechargeable lithium ion battery
is removed from battery adhesive sheet. Be sure to replace the new
parts.
ABOUT INSULATING OF THE BUILT-IN RECHARGE-
ABLE LITHIUM ION BATTERY
When wire of the built-in rechargeable lithium ion battery is re-
moved from board, insulate the end of battery wire by wrap a tape
etc. to prevent short-circuited of the battery wire part of the built-in
rechargeable lithium ion battery.
battery wire
Wrap by the tape etc. and
insulate the end of battery
wire.
DESTINATION ABBREVIATIONS
The following abbreviations for model destinations are used in this
service manual.
• Abbreviations
AEP : European, East European and Moldova models
AUS : Australian model
CH : Chinese model
CND : Canadian model
EE : Russian model (CIS area: Except for Moldova)
JE : Tourist model
4
SECTION 1

SERVICING NOTES

METHOD OF DISTINGUISHING THE WALKMAN MAIN
UNIT
When distinguish the destination of the WALKMAN main unit,
check by following method.
• Method of using the tool
Note 1: Check before you replace the MAIN board of the repairing
If the WALKMAN main unit is running normally, please dis-
tinguish by using the model information check tool, connecting
WALKMAN to PC (personal computer) by USB cable (WM-
PORT).
Refer to "1. Advance preparation" on page 5 and "2-3. Model in-
formation check" on page 8 for how to operate the model informa-
tion check tool.
• Method of distinguishing in the printed of the WALK-
MAN main unit
It can distinguishing by check in the contents of printed of the left
side of the WALKMAN main unit. Refer to the following table.
Note 2: The NW-WM1A has been engraved to the main unit.
The NW-WM1Z has been affi xed label to the main unit.
US, CND
AEP, UK
E, AUS,
JE
CH
EE
unit, to perform this method.
– Left side view –
NW-WM1A : Engraved
NW-WM1Z : Label
NW-WM1A
–
NW-WM1Z