MDS-NT1
6-2. BLOCK DIAGRAM – MAIN Section –
DADTI | DSPIF3 |
11 | |
XBCKI | DSPIF2 |
10 | |
LRCKI | DSPIF2 |
8 | |
DIN1 | DSPIF0 |
7 | |
5 | DSPCLK |
NET MD SECURITY,
DIGITAL SIGNAL PROCESSOR,
USB INTERFACE
IC901
CPUSO CPUSI CPUCK CPUXCS CPUINT | PLLSW | RESET | XTAL | EXTAL |
52 53 51 56 57 | 3 | 58 | 47 | 46 |
DP 39 
DM 40 
USBSW 42
USBEN 35 
D901
CN4
USB
2
3
1
USB+ USB–
VBUS
BUFFER
IC550
SWDT
SCLK
D/A CONVERTER
IC505
1MCLK
3 | SDTI | AOUTL+ 12 | ||
AOUTL– | 11 | |||
2 | BICK | |||
|
| |||
4 | LRCK | AOUTR+ | 10 | |
|
| |||
8 | CDTI | AOUTR– | 9 | |
|
| |||
7 | CCLK |
|
| |
6 | CSN | PDN |
| |
|
|
| ||
|
| 5 |
| |
USI USO UCLK UCS UINT UPLLSW URESET
MIX AMP
IC501 (1/2)
MIX AMP
IC501 (2/2)
X550
12MHz
RV301 |
|
PHONE | HEADPHONE AMP |
LEVEL | IC503 |
CN200
ANALOG OUT
USI USO UCLK UCS UNIT UPLLSW URESET
MUTING
Q170, 270
MUTING
CONTROL SWITCH
Q100
D301
5 | LIN | MUTE | LOUT | 7 | |
3 | RIN | ROUT | 1 | ||
| |||||
|
| 2 |
|
| |
| HEADPHONE | • SIGNAL PATH | |||
| MUTING | ||||
|
| Q451 |
|
| |
: PLAY
: REC
J180
PHONES
X301
10MHz
13 XIN
11 XOUT
D732
Net MD
D751
(PLAY)
D731
(REC)
38
ADA_LATCH
37 |
|
|
|
|
RESET |
| SYSTEM CONTROLLER | ||
|
| IC301 (2/2) |
| |
ADA_ |
|
|
|
|
LED1 | LED2 | LED3 | KEY1 | KEY0 |
84 82 81 | 93 | 95 | ||
LED DRIVE |
|
|
|
|
Q732 |
|
|
|
|
|
|
| S726 | S702 |
LED DRIVE |
|
| B/> | x/Z |
|
|
|
| |
Q751 |
|
|
|
|
LED DRIVE |
|
|
|
|
Q731 |
|
|
|
|
4 | 3 | 5 | 74 73 76 75 | 77 |
RESET NETMDSO | NETMDCLK | NETMDCS NETMDINT NETMDPLLSW NETMDRESET | NETMDVBUS | |
NETMDSI |
|
|
|
|
S. |
|
|
|
|
10 |
|
|
|
|
RESET
SIGNAL
GENERATOR
IC420
36 17
MUTE | DOWN |
| P. |
D422 | D421 | +3.3V |
SYS+3.3V |
| REGULATOR |
|
| IC402 |
BAK+3.3V |
|
|
|
| BT420 |
|
| LITHIUM |
|
| BATTERY |
+3.3V
BD+3.3V 
REGULATOR IC933
+2.6V
D+2.6V 
REGULATOR IC926
+5V
SWITCHING
Q400
A+5V
VOLTAGE
DETECT
IC401
SWITCHING REGULATOR IC400
+9V
|
|
|
|
|
| +5V | |
REGULATOR |
|
| REGULATOR |
|
| ||
IC451 |
|
| IC450 |
|
|
|
|
THP400
J400
–
+
DC IN 9V
37 37
