Sony NW-E303 Service Manual ▷ View online
13
NW-E303
SECTION 3
TEST MODE
STANDING PROCEDURE
Procedure 1: In HOLD state, while pushing Nx button and
/ MENU button, push [REST].
When the test mode is set, the LCD display appears
as shown below.
as shown below.
Procedure 2: After starting up test mode, the following contents
can be checked.
TEST MODE
256M 1.00.01 G14
The place of destination
FW version
NAND FLASH RAM capacity
FW version
NAND FLASH RAM capacity
BUTTON NAME
DESCRIPTION
/MENU
Push the
/MENU button, so displayed Fmax/
Fmin for FM broadcast received frequency.
A display change as shown below whenever the
/MENU button is pushed.
FM[P__}76.0MHz
FM[P__}TV 3CH
DISP/FM
Displayed “TUNER OFF”.
u (AMS+)
Displayed charge mode (100mA/500mA).
A display change as shown below whenever the
u (AMS+) button is pushed.
Charge Mode 500m
Charge Mode 100m
U (AMS–)
Display Charge ON/OFF.
Change a display as shown below whenever the
U (AMS–) button is pushed.
Charge On
Charge Off
HOLD
Change a display as shown below whenever in the
state of HOLD ON.
• LCD lights up to a checkered pattern.
• All LCD lights on.
In the state of HOLD OFF.
• Displayed “HOLD KEY OFF”
VOL
i
Displayed “Beep: ON”
VOL
I
Displayed “Beep: OFF”
REP/SOUND
Push the REP/SOUND button, so “Initialized” is
displayed.
Initialized. (Turn to the factory preset state, time,
volume setting and so on.) The music data and files
in the memory are not changed.
Nx
“Check all key” is displayed, so the key test mode
is activated, when the Nx button is pressed.
Push all button around.
Escape a test mode if the Nx button is pressed
at last.
14
NW-E303
SECTION 4
DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. (p: pF) 50 WV
• All capacitors are in µF unless otherwise noted. (p: pF) 50 WV
or less are not indicated except for electrolytics and tantalums.
• All resistors are in Ω and
1
/
4
W or less unless otherwise speci-
fied.
•
%
: indicates tolerance.
• C : panel designation.
•
: B+ Line.
• Voltages and waveforms are dc with respect to ground under
no-signal (detuned) conditions.
no mark : POWEN ON
no mark : POWEN ON
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production tol-
erances.
erances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production tol-
erances.
erances.
• Circled numbers refer to waveforms.
• Signal path.
E
: PLAY BACK
a
: DIGITAL OUT
k
: DIGITAL IN
F
: FM
Note on Printed Wiring Board
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
Caution:
Parts face side:
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
Pattern face side: Parts on the pattern face side seen from
(Side B)
(Side B)
the pattern face are indicated.
• These boards are multi-layer printed board.
However, the patterns of intermediate-layer have not been in-
cluded in the diagram.
cluded in the diagram.
• Lead Layouts
surface
CSP (Chip Size Package)
Lead layout of conventional IC
• Waveforms
– MAIN Board –
– MAIN Board –
1
IC400 <zcm (XTAL)
44.5 ns
1.4 Vp-p
500 mV/DIV, 20 ns/DIV
2
IC400
<zvz
(TX)
62.4
n
s
1 V/DIV, 40 ns/DIV
3.5 Vp-p
3
IC401 8 (OSCOUT)
30.5 µs
500 mV/DIV, 20
µ
s/DIV
1.2 Vp-p
15
15
NW-E303
NW-E303
4-1. BLOCK DIAGRAM
TUNER
IC1
RTC
IC401
NOR FLASH SRAM
IC450
NAND FLASH RAM
IC461
USB
CN601
CONNECTOR
1
2
3
4
126
38 - 53
185
197 - 207, 2 - 10
187
184 183
186
182
15 - 22
29 - 32, 41 - 44
29 - 36, 38 - 45
11
1 - 9, 16 - 25, 48
13
14 15
26
28
10
16 17 18 19 8
7
9
128
129
130
102
104
83
176
106
3
2
133
134
13
24
25
5
2
127
DATA -
DATA +
GND
DATA +
GND
VBUS
PI3
VDIOUS
UDM
UDP
TRON
VBUS
AN4
AN6/INT8
S601
PF2/EC2/INT4
CD
VOUT
AUINA
+2.8V
OUTA
AUINB
BUSENABLE
17
XTAL2
X402
32.768kHz
OUTB
+2.3V
UNREG
PI5/MUTFGL
177
PI6/MUTFGR
191
PK5/CS5
RST
PD3
AOUTR
150
PQ4
151
PQ5
149
PQ3
148
PQ2
AOUTL
85
BEEP
VCC
FCE0
FRB0
FCLE
FAD0 - 7
A1 - 20
D0 - 15
FRE
FWP
FWE
FALE
CSI
WE
RE
CS0
LB
UB
CE
R/B0
CLE
I/O1 - 8
A0 - 19
DQ0 - 15
RE
WP
WE
ALE
BES
WE
OE
XRST
BEF
LBS
UBS
SYSTEM CONTROLLER
IC400
137
138
XT
AL
EXT
AL
X400
22.4548MHz
141
142
TE
TEX
X401
16MHz
HOLD
>
RESET GEN
IC508
1
5
VI
+1.2V
SW
3
EN
+1.2V REG
IC505
S710
(RESET)
5
2
VOUT
VIN
+2.7V REG.
IC2
J351
HP AMP
IC301
• SIGNAL PATH
: PLAY BACK
: DIGITAL OUT
: DIGITAL IN
L3
RESET
Q506,507
103
105
AN5
AN7/INT9
+2.3V
38 DATA
37
39 STB
CLK
118
PD0
119
PD1
120
121
PD2
11 WRITE/READ
8
9 CLOCK
DATA
7 CE
PE7/SCS1
73
PE4/SCK1
74
PE5/SO1
75
76
PE6/SI1
2 SCLK
10
VDD
3
4 SI
9
OSCIN
8
OSCOUT
1
32KOUT
SO
34 MUTE
147
PQ1
36 RESET
146
PQ0
35 PWRSW
26
31 TUINA
TUINB
23
22 VAFL
35
RFI1
37
RFI2
VCC
VAFR
: FM
S604
S603
S602
Nx
S709
87 PG1/DREQ0/INT5
NAND FLASH INTERFACE
USB INTERFACE
A/D, D/A CONVERTER
SERIAL INTERFACE
3
4
VOUT
UNREG
VDD
+2.8V REG
IC503
23 24 26 28 27
30
6
FRB1
R/B1
32
29
10
FCE1
CE1
31
174
(USB)
SWITCH
CHARGE/DISCHARGE
CONTROL
Q508
SWITCH
Q503,504
SWITCH
Q505
IC502
RECHARGEABLE
BATTERY
Li-ion Mn
1PC,4.0V
1
DOUT
5
2
3
COUT
VDD
VSS
PP0/RP
99
33
AN1
86 PG0/DACK0
84 PF3/T3
SWITCH
Q501,502
REG/USB
POWER CONTROL
IC501
16
OUT
15
OUT
17
OUT
7
2
STAT1
20 USB
9 CE
6 BAT
5 BAT
ISET2
1
5
VI
SW
3
EN
+2.8V
+2.8V REG
IC506
4
2
VDD VOUT
RESET GEN
IC507
1
LD0
PI0/DADT
12
TS
EL DISPLAY
8
16
16
DRIVE
Q801
171
+2.8V
4
3
VIN
+2.3V
VOUT
+2.3V REG
IC509
VOL
I
VOL
i
U
(AMS–)
u
(AMS+)
(HEADPHONES)
REP / SOUND
DISP/ FM / MENU
16
16
NW-E303
NW-E303
4-2. PRINTED WIRING BOARD – MAIN BOARD (SIDE A) –
:Uses unleaded solder.
• Semiconductor
Location
Ref. No.
Location
D1
C-11
D2
C-11
D801
C-6
IC1
D-11
IC2
E-9
IC401
F-10
IC501
E-5
IC502
D-4
IC503
F-9
IC505
E-6
IC506
E-7
IC507
D-8
Q503
F-2
Q504
E-3
Q505
G-4
Q508
E-4
Q801
B-6
IC502
IC505
IC401
IC1
IC507
IC506
IC2
IC503
IC501
R717
R716
1
1
1
1
3
3
3
4
4
4
5
5
1
3
4
5
1
2
2
2
9 10
11 12
19
20
1
5
15
25
35
39
2
10
20
30
38
1
8
1
8
S
S
E
S
TP513
MAIN BOARD (SIDE A)
S709
S709
HOLD
EL
DISPLAY
1-868-355-
(12)
12
A
USB BOARD
CN602
(Page 22)
RECHARGEABLE
BATTERY
Li-ion Mn
1PC, 4.0V
1
2
A
B
C
D
E
F
G
3
4
5
6
7
8
9
10
11
12
13
C
SWITCH
FLEXIBLE
BOARD
(Page 23)
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