Sony NW-MS6 Service Manual ▷ View online
11
NW-MS6
[Flow Chart of Operations in the Test Mode]
[Items to Check in the Test Mode]
1. ROM/RAM Self-check
After entering the test mode, ROM/RAM self-check is performed automatically in the first place. By entering the test mode with key input,
however, no RAM check is performed.
1
however, no RAM check is performed.
1
Result of the ROM/RAM check is OK:
The LCD back light turns on, and version and destination is displayed automatically.
The LCD back light turns on, and version and destination is displayed automatically.
2
Result of the ROM check is NG:
“BAD ROM” is displayed on the LCD, and the LCD back light keeps blinking.
“BAD ROM” is displayed on the LCD, and the LCD back light keeps blinking.
3
Result of the RAM check is NG:
Nothing is displayed on the LCD, and the LCD back light keeps blinking
Nothing is displayed on the LCD, and the LCD back light keeps blinking
2. Display of Version and Destination
Version and destination are displayed as follows.
Every time the
[DISPLAY]
key is pressed, the display changes as “version and destination
t LCD all lit t LCD all off t version and
destination...”.
Also, pressing the
[VOLUME+]
key changes the mode to writing destination, and if pressing the
[VOLUME--]
key, the unit goes into the
sleep mode.
Enter the test mode
1. ROM/RAM Self-check
2. Display of version
and destination
3. Writing destination
(Checking voltage and
consumed electric current)
4. Checking the rated
voltage
5. Checking the LOW BATT
voltage
6. USB self-check
7. RTC self-check
8. Sleep mode
(Checking consumed electric current)
Waking up with the normal mode
(Waking up with the test mode, if
the short lands (SL0120) have
been short)
(Waking up with the test mode, if
the short lands (SL0120) have
been short)
[DISPLAY]
key
[DISPLAY]
key
[DISPLAY]
key
[MENU]
key
[MENU]
key
[MENU]
key
[MENU]
key
[MENU]
key
[VOLUME+]
key
[VOLUME--]
key
LCD all off
LCD all lit
any key
v1.00.03JP
display example
12
NW-MS6
3. Writing Destination (Checking Voltage and Consumed Electric Current)
After entering this mode, display of version and destination blinks. (The LCD back light turns off)
3-1. Checking voltage and consumed electric current
Note:
Perform checking voltage and consumed electric current with the LCD back light off.
Specified value :
VDDCORE voltage
VDDCORE voltage
: 1.8 to 2.0 V (voltage between TP9002 (VDDCORE) and TP (GND))
VDDIO2 voltage
: 2.7 to 2.9 V (voltage between TP9003 (VDDIO2) and TP (GND))
Consumed electric current : below 200 mA
Connecting Location:
3-2. Writing destination
Note:
When the displayed destination is correct, writing destination is no needed. But when the EEPROM check is performed, leave the display as it is and
press the
press the
[DISPLAY]
key to perform this check.
After replacing the EEPROM, make it sure to write destination.
Every time the
[MEGA BASS]
key is pressed, the display changes as
t “JP t US t EU t X t JP t...”.
Select the destination*, and press the
[DISPLAY]
key to fix. Then the LCD display changes from blinking to being on. Also at the same
time, checking destination written on the EEPROM is performed, and when the result is OK, the LCD back light turns on, and if not, starts
blinking.
*) JP
blinking.
*) JP
: Japanese model
EU
: AEP, UK, E, Hong Kong, Korean, Chinese models
US
: US model
X
: French model
4. Checking the Rated Voltage
Note:
Before entering this mode, check that the input voltage is the specified value (1.23 V).
Press the
[MENU]
key after “3-2. Writing Destination” to enter this mode. The check is started automatically.
When the result is OK, “1. HLFBT >OK” is displayed on the LCD. And if the result is NG, “1. HLFBT >NG” is displayed.
5. Checking LOW BATT Voltage
Note:
Before entering this mode, adjust the input voltage to the LOW BATT voltage value (0.95 V).
Press the
[MENU]
key after “4. Checking the rated voltage” to enter this mode. The check is started automatically.
When the result is OK, “2. LOWBT >OK” is displayed on the LCD. And if the result is NG, “2. LOWBT >NG” is displayed.
Press the
Press the
[MENU]
key to go to the next USB self-check.
TP9003
(VDDIO2)
IC8000
IC5000
TP9002
(VDDCORE)
TP (GND)
– MAIN BOARD (Conductor Side) –
1.HLFBT >
display
2.LOWBT >
display
13
NW-MS6
6. USB Self-check
The indication is displayed as below after entering this mode.
This mode is not used in servicing.
Press the
Press the
[MENU]
key to go to the next RTC self-check.
7. RTC Self-check
The indication is displayed as below after entering this mode.
The indication is displayed as below after entering this mode.
The check on writing/reading real time clock is performed automatically and when the result is OK, “4. RTC >OK” is displayed on the
LCD and LCD back light turns on. If the result is NG, “4. RTC >NG” is displayed and the LCD back light blinks.
Press the
LCD and LCD back light turns on. If the result is NG, “4. RTC >NG” is displayed and the LCD back light blinks.
Press the
[MENU]
key to go back to “2. Display of Version and Destination”.
8. Sleep Mode (Checking Consumed Electric Current)
When the
When the
[VOLUME--]
key is pressed at “2. Display of Version and Destination”, the unit goes into sleep mode.
Once entering this mode, the LCD turns off and the unit goes into the sleep (standby) status. After being into the sleep status, check that
consumed electric current is within the specified value.
Specified value : below 1 mA
consumed electric current is within the specified value.
Specified value : below 1 mA
The unit is waked up with normal mode with pressing any key. If the short lands (SL0120)) has been short, however, waked up and enters
this test mode again.
this test mode again.
3.USB >
display
4.RTC >
display
NW-MS6
15
15
SECTION 5
DIAGRAMS
5-1.
BLOCK DIAGRAM – MAIN Section –
22
21
20
26
28
30
25
85
125
198
4
68
122
29
102
13
92
3
91
4
95
2
93
1
17
7
18
6
9
10
3
78
11
12
10
14
13
15
9
82
80
5
4
6
2
3
1
7
81
59 – 63, 65, 66,
69 – 71, 73 – 77
13, 16, 21, 24, 32, 29, 40, 37,
14, 15, 22, 23, 30, 39, 38, 47
5 – 3, 1, 2, 12, 11, 9, 34, 33,
35, 36, 42, 41, 43, – 45, 10
42, 35, 43, 36 – 38, 46,
47, 2, 3, 11 – 14, 6, 7
17, 25, 33, 18, 26, 19, 27, 28, 16,
24, 32, 40, 23, 31, 22, 30, 29
39 – 44, 47 – 52,
54 – 56, 58
7 – 1, 256, 253 – 246
28 – 20, 18 – 10
204
3
205
5
197
1
8
88
2
14
21
4
83
16
86
150
9
62
15
123
51
17
87
18
85
13
23
151
60
7
8
9
79
2
78
4
72
3
48
46
47
44
45
112
49
6
17
25
7
1
10
39
9
26
34
B+ SWITCH
Q6000, 6001
CN6000
CN6002
(USB)
4
8
2
2
6
3
3
1
9
MS DIO
MS SCLK
MS BS
MS INS
VCC
VCC
DATA+
DATA–
VBUS
VDDIO2
VBUS
D6000
DP3
SAM RST
+3.3V
REGULATOR
IC6000
USB
SWITCH
Q6003, 6004
A
B
DIO
SCLK
BS
INS
UDP
UDM
DP2
AVD2
DP3
RST
IRQ
DSP, MAGIC GATE CORE,
MEMORY STICK INTERFACE,
USB INTERFACE
IC8000
IC7700
ADR0 – ADR14
DB0 – DB15
D0 – D15
D0 – D15
DATA BUS
DATA BUS
ADDRESS BUS
ADDRESS BUS
MS PWR
A1 – A15
A1 – A18
SAM INT
WAKE2
PCMO
BCK
LRCK
FS256
CLOCK DIVIDER
LPF
BEEP
SERIAL
INPUT
INTERFACE
8X
INTERPOLATOR
DE – EMPHASIS
CONTROL
POWER
AMP
BASS
BOOST
∆∑
MODULATOR
D/A CONVERTER
IC3100
HEADPHONE AMP
IC3200
DEM
XPD
SDATA
BICK
LRCK
MCLK
V OUTL
+
REFERENCE
VOLTAGE SWITCH
Q3301
BASS BOOST
CONTROL
Q3302
IN B
R-CH
R-CH
J3301
R-CH
OUTB
BEEP OUTB
VREF
IN
BST SW
LPF2
MT SW
PW SW
BEEP
IN
i
REAL TIME
CLOCK
IC1001
IC1001
X7001
22.5792MHz
SYSTEM CONTROLLER
IC7001 (1/2)
DAC XPD
DAC DEMP
HPBB ON
HPBB1, 2
HP BEEP
PWM2
HP MUTE
HP PWR
XTO
XTI
RTC CS
OSC OUT
OSC IN
SCK1
SDO1
SDI1
CE
SCLK
SI
SO
X1001
32.768kHz
C
XRST2
• SIGNAL PATH
• R-ch is omitted due to same as L-ch.
: PLAY
: Check-out
SIOSO
SIOSI
SIOCK
SIOCS
DP0
DP1
DI
DO
XSK
XCS
RDY/XBUSY
RESET
EEPROM
IC6002
X8000
12MHz
XTAL1
EXTAL1
EXTAL0
DEMULTIPLEXER
IC5800
RD
CS
Y1
Y0
Y2
Y3
A
B
G
Y1
Y0
Y2
Y3
A
B
G
WRU
WRL
A18
S-RAM
IC5600
IC5600
DQ0 – DQ14,
DQ15/A-1
A0 – A17
I/O0 – I/O15
A0 – A16
FLASH
MEMORY
IC5000
XCE
A1 – A17
D0 – D15
A1 – A18
D0 – D15
XBLE
XBLH
XWE
XOE
CE
RY/BY
WE
OE
RESET
CS1
UB
LB
OE
WE
ROM RY/XBY
CS0
D0 – D15
A1 – A18
XWE
CS1
XOE
XWE
XOE
CS1
MEMORY STICK
: Check-in
(Page 16)
(Page 16)
(Page 16)
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