Block Diagram - Panel Section - Sony ICD-SX46 Service Manual

4-3. BLOCK DIAGRAM – PANEL SECTION –
LIQUID
CRYSTAL
DISPLAY
MODULE
S901,902,
7002,7004
FUNCTION
KEY
S905
SEESAW
KEY
S903,904
7003
FUNCTION
KEY
MAIN-2
WAKEUP
F
SECTION
(Page 14)
MAIN-2
KEYINH
SECTION C
(Page 14)
S906
ON
VOICE UP
OFF
S907
ON
DIRECTNL
OFF
ON
S908
DPC
OFF
ON
S7001
HOLD
OFF
ICD-SX46/SX56/SX66
IC7003(3/3)
CPU
49-74,
SEG0 - SEG31
77-82
83-86
COM0 - COM3
40 KEYIN0
IC7005
90 2 RESET 3
XCPURST
41 KEYIN1
XFLMPWR 97
DSPEVDD
(IC6001, 6002, 6003)
MAIN-2
VBUS
E
43 VUPSW SECTION
(Page 14)
DSPPWR 117
42 MICSEL
BATT 39
44 XDPCSW
MAIN-1
XBATTEN
B
SECTION
(Page 13)
HOLDSW
112
XDCINDET 113
MAIN-2
DDCOUT
D
SECTION
(Page 14)
Q7001
B+
FLMVCC
SWITCH
(IC7002)
Q5006,5007
B+
SWITCH
DDCOUT(3.1V)
IC5001
DDCOUT
+2.9V (3.1V)
AVDD(2.9V) 5 1
REG
4
Q5012
SWITCH
DSPCVDD(1.6V)
Q5001
SWITCH
15 15
IC3003 VDD
Q5013
D5003 L5001
VBATT
B+
SWITCH
Q5002
IC5003
SWITCH
DC/DC CONV.
3 FB1 EXT1 1
4 PWM1
6 EN2
1
8 FB2 EXT2 10
L5002
Q5003
SWITCH
D5004
Q5005
DC DET
Q5010, 5011
ICD-SX46/SX56/SX66
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION LR03)
2PCS. 3V
IC5002
VOLTAGE
3
DETECT
D5005
J5001
DC IN 3V
Q5009
SWITCH