Sony NW-E5 Service Manual ▷ View online
9
NW-E5
SECTION 4
TEST MODE
Setting the Test Mode
To enter the test mode, two methods are available :
1. Entering method with key input.
To enter the test mode, two methods are available :
1. Entering method with key input.
Turn the HOLD switch to ON. While holding down the Bx key, press the following keys in the following order :
VOLUME +
VOLUME +
t VOLUME – t VOLUME – t VOLUME + t VOLUME – t MEGA BASS t MEGA BASS t DISPLAY
Note : Push each key for less than 3 seconds.
2. Entering method by shorting the test point.
Solder brige the test point SL701 (TEST) on the main board and turn on the power.
Releasing the TEST mode
1. When test mode was entered with key input, turn off the power supply.
2. When test mode was entered by shorting the test point, turn off the power supply and open the solder brige of SL701 (TEST) on the main
1. When test mode was entered with key input, turn off the power supply.
2. When test mode was entered by shorting the test point, turn off the power supply and open the solder brige of SL701 (TEST) on the main
board.
Test mode
Short : Test mode
Open : Normal mode
Short : Test mode
Open : Normal mode
(
)
1
4
regulated
DC power supply
Connecting cable
supplied with the set
supplied with the set
USB Connector
(1-784-009-11 or 1-779-676-11)
Set
Battery terminal
CN701
(USB Connector)
regulated
DC power supply
LCD
Check
Ver. /
destination
display
All display
lit
(+)
(–)
All display
off
Flash memory
bad block
check
Bx
Bx
(+)
(–)
(+)
(–)
Destination
setting
Contrast
adjustment
(–)
Low voltage
check
(–)
Bx
Bx
(–)
High DC
detection
detection
check
Low DC
detection
check
(+)
Supply 0.9V DC to battery
terminal and press (–) key.
terminal and press (–) key.
Supply 1.24V DC to battery
terminal and 7V DC to USB
connector and press (+) key.
terminal and 7V DC to USB
connector and press (+) key.
Supply 1.24V DC to battery
terminal and 4V DC to USB
connector and press (+) key.
terminal and 4V DC to USB
connector and press (+) key.
Configuration of Test Mode
The test mode has the configuration given below.
The test mode has the configuration given below.
Bx
: Play/stop key
(+)
: VOLUME + key
(–)
: VOLUME – key
Connection
R805
R804
R814
R806
R812 R813
R811
R810
R702
JC704
TP3
SL701
(TEST)
TP701
MAIN BOARD (SIDE A)
10
NW-E5
LCD check
Check the condition of indication by all display is lit or not.
Bx key : check start
Flash memory bad block check
OK
: Flash The back light turns on
NG
: Flash The back light turns on and off
AVLS key : select the destination
AREA E-12 (AEP, UK, Franch, German).
Destination setting
Bx key : Enter the destination
OK
: The back light turns on
NG
: The back light turns on and off
Contrast adjustment
Display
n LCD 45 – 13
contrast value (Initial value : 45)
>, . key : Select the contrast value.
Bx key
: Enter the contrast value.
Normally, do not perform this adjustment.
Low voltage check
Low voltage detection check
OK
: Lo Bat OK The back light turns on
NG
: Lo Bat NG The back light turns on and off
Battery high voltage detection check
High DC detection check
OK
: Hi DC OK The back light turns on
NG
: Hi DC NG The back light turns on and off
Battery low voltage detection check
Low DC detection check
OK
: Lo DC OK The back light turns on
NG
: Lo DC NG The back light turns on and off
Description of each Mode ( : indication on display)
n
The regulated DC power supply voltage supplied to USB connector on checking each voltage value.
OK
NG
Low voltage check
0.9V
1.0V or more
High DC detection check
7.0V or more
6.0V or less
Low DC detection check
4.0V or less
5.0V or more
11
11
NW-E5
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAMS
• Signal path.
F
: ANALOG
J
: DIGITAL
12
12
NW-E5
5-2. PRINTED WIRING BOARDS – MAIN SECTION –
D781
C-6
D782
E-7
D783
B-2
IC710
E-3
IC751
C-3
IC752
E-4
IC753
C-5
IC810
A-3
IC820
B-1
IC851
D-6
IC852
B-7
IC853
B-7
Q710
F-1
Q831
B-1
Q832
B-1
Q833
C-1
Ref. No.
Location
z
Semiconductor
Location
Note:
• X : parts extracted from the component side.
•
• X : parts extracted from the component side.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side:
Parts on the parts face side seen from the
(Side A)
parts face are indicated.
• Main board is six-layer printed board.
However, the patterns of layers 2 to 5 have not been
included in this diagrams.
included in this diagrams.
Lead layout of
conventional IC
conventional IC
CSP (chip size package)
* Replacement of IC710 used in the set requires a spe-
cial tool.
• Lead Layouts
surface
02
R764
R773
R767
R771
R752
C757
C703
C721
C722
C723
C724
C725
R703
R757
R783
R772
R707
JC701
R706
R770
R769
R716
R774
R775
R786 R705
JC722
C727
C704
C719 C720
C730
C701
C726
Q701
C763
C702
1
2
5
15
20
25 29
30
10
CN702
IC710
C731
C735
C732
C736
C737
C738
C739
C740
C741
R717
FB703
R777
JC705
R776
JC706
R731
R782
R781
R780
R779
R778
C729
C733
C851
C753
C755
R762 R761 R760
C734
FB702
FB704
JC739
1
5
7
14
10
8
IC851
1
5
14
10 8
IC852
1
5
15
20
10
11
IC853
D782
JC746
JC723
T701
P701
1
5
10
15
20
22
CN701
USB
CONNECTOR
R924
R925
C852
C853
D781
C761
C762
C752
C751
C728
C804
TP2
1
25
24
15
20
48
45
40
30
35
5
10
IC752
1
25
24
15
20
48
45
40
30
35
5
10
IC753
1
25
24
15
20
48
45
40
30
35
5
10
IC751
1
5
10
15
13
20
24
25
30
3536
37
40
45
48
12
IC810
R801
R802
R805
R804
R814
C801
C617
C808
C802
C803
X801
D783
R806
R812 R813
R811
R810
R702
JC704
TP3
SL701
(TEST)
TP701
Q833
Q831
Q832
IC820
1
2
3
2
3
4
5
C616
C807
G
S
D
A
POWER BOARD
CN704
11
(11)
1-680-217-
11
(11)
1-680-217-
*
MAIN BOARD (SIDE B)
MAIN BOARD (SIDE A)
2
3
4
5
6
7
8
9
A
1
B
C
D
E
F
G
BCE
X701
: Uses unleaded solder.
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