Sony ICD-SX46 Service Manual page 26

ICD-SX46/SX56/SX66
• IC Block Diagrams
– AUDIO Board –
IC3003 MM3111AWLE
SHUTDOWN
1
8 VO2
BIAS
BYPASS 2
7 GND
6 VDD
+IN 3
5 VO1
-IN 4
IC6003 NJU6366AF1 (TE1)
3 2 1
RF
1/2 1/2 1/2
CG CD
3-STATE
BUFFER
A B C D
4 5 6
IC6004 TC7S04FU(TE85R)
NC 1 5 VCC
2 4
IN OUT
GND 3
ICD-SX46/SX56/SX66
– MAIN Board –
IC5003 XC9502B092AR
PWM/PFM PWM/PFM
1
EXT1
CONTROLLER1 CONTROLLER2
PWM PWM
COMPARATOR1 COMPARATOR2
VDD 2
FB1 3
ERROR AMP1 ERROR AMP2
RAMP WAVE RAMP WAVE
GENERATOR1 GENERATOR2
PWM1 4
VREF1=0.9V OSC VREF1=0.9V
WITH SOFT START1, GENERATOR WITH SOFT START2,
5
EN1
EN1
EN1 TO EN2 TO
INTERNAL CIRCUIT INTERNAL CIRCUIT
IC7001 BU2090FS-E2
16 15 14 13 12 11 10 9
12 BIT
CONTROL
SHIFT
CIRCUIT
REGISTER
OUTPUT
12 BIT BUFFER
STORAGE
(OPEN DRAIN)
REGISTER
1 2 3 4 5 6 7 8
IC7004 RX-4591CF
32.768kHz
10 VDD 1
EXT2
OSC
2
9 GND FOE
3
8 FB2 XIRQ
DI
DO
4
7 PWM2 T1
CLK
CE
6 FOUT 5
EN2
EN2
IC8001 M66291GP-2
48 47
CVDD 1
2
GND
I/O BLOCK
D- 3
14
OSCILLATION
BUFFER
4 13
D+
/48MHzPLL
VBUS 5
5 VBUS
TRON 6
INPUT CIRCUIT
6
D+ PIN PULLUP
CIRCUIT
7
TEST
4
DACK1 8
USB
TRANSCEIVER
3
DREQ1 9
TC1
10
INT1
11
IVDD 12
13 14 15
26 26
CE
CLOCK
AND
DIVIDER
CALENDAR
CLK
FOUT TIMER
CONTROLLER REGISTER
INTERRUPTS ARARM
DO
CONTROLLER REGISTER
CONTROL
BUS REGISTER DI
INTERFACE AND
CIRCUIT SYSTEM
CONTROLLER
46 45 44 43 42 41 40 39 38 37
USB-IP
INTERRUPT CONTROLLER
BUS
INTERFACE
TRANSFER UNIT
ENDPOINT
(BIU)
CONTROLLER CONTROLLER
SERIAL
INTERFACE
FIFO MEMORY CONTROLLER
ENGINE
(SIE)
FIFO MEMORY
16 17 18 19 20 21 22 23 24
10 CE
9
CLK
8
DO
7
DI
6 GND
36 GND
35 IVDD
34 D11
33 D10
32 D9
31 D8
30 D7
29 D6
28 D5
27 D4
26 D3
D2
25