NWZ-E473, NWZ-E473K, NWZ-E474, NWZ-E474K, NWZ-E475 - Sony Audio Service Manual (repair manual). Page 4

NWZ-E473 and NWZ-E474 have the model to whom the speaker is at-
tached (NWZ-E473K/E474K).
However, the model name of the main unit of WALKMAN of NWZ-
E473K and E474K are NWZ-E473 and NWZ-E474.
The setting of the fi rmware is different in the WALKMAN for single sales 
model and the WALKMAN to which the speaker is attached.
Therefore, it is necessary to distinguish whether the WALKMAN brought 
in to the repair is the WALKMAN to which the speaker is attached.

In the WALKMAN for supplied speaker model, marking label is given on 
the SUPPORT M.
Note: When you exchanged the SUPPORT M, peel off the marking label 

from the old SUPPORT M before it exchanges it, and try to paste it 
to the new SUPPORT M.

NOTE  THE  COMPLETE  EMMC  BOARD  REPLACING
When the complete EMMC board is replaced, process it according 
to the following.

1. 

Destination setting (page 4)

2. 

Format (page 6)

3. 

Reset all setting (page 6)

4. 

Wallpapers setting (page 6)

1. Destination setting
1-1. Outline
The destination code corresponding to each region must be in-
stalled into the EMMC board with the destination setting tool.

EMMC board

Model

Capacity

Part No. of 

complete EMMC 

board

Pre-installed 

destination 

code

NWZ-E473/
E473K

4GB

9-885-171-40

E

NWZ-E474/
E474K

8GB

9-885-171-41

E

NWZ-E475

16GB

9-885-171-42

E

Destination code

Model

Area

Desti-

nation 

code

Remark (Default setting 

for each item)

NWZ-
E473/
E474/
E475

US

U

EQ: None
SP Output Optimizer: Off

Canadian

CA

EQ: None
SP Output Optimizer: Off

AEP, UK

CEW

EQ: None
SP Output Optimizer: Off

E, 

Australian, 

Tourist

E

EQ: None
SP Output Optimizer: Off

Chinese

CN

EQ: None
SP Output Optimizer: Off

East 

European

EE

EQ: None
SP Output Optimizer: Off

Mexican

MX3

EQ: Custom 1
SP Output Optimizer: Off

Indian

E1

EQ: None
SP Output Optimizer: Off

NWZ-
E473K/
E474K

Canadian

CA

EQ: None
SP Output Optimizer: 
RDP-NWT18

AEP, UK, 

AEP, UK

(Qriocity 

ver.) 

CEW

EQ: None
SP Output Optimizer: 
RDP-NWT18

E, Tourist

E

EQ: None
SP Output Optimizer: 
RDP-NWT18

East 

European

EE

EQ: None
SP Output Optimizer: 
RDP-NWT18

Mexican

MX3

EQ: Custom 1
SP Output Optimizer: 
RDP-NWT18