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6-2. BLOCK DIAGRAM — AUDIO SECTION —
OVER WRITE
HEAD DRIVE
Q601, 602
SWITCHING
REGULATOR
Q603
EFM
LOGIC
A/D
CONV.
04
EFM
MOTOR
DRIVE
F1
R1
CLK
M603
OVER WRITE
HEAD
UP/DOWN
MOTOR
HR601
OVER
WRITE
HEAD
31
33
5
7
18
19
35
3
2
34
OE
24
RECDW TP
EFMO
STDO
STDI
BCLK
LRCK
MCLK
XRST
FS4
DW BT
REC +B
23
B+SW
BATT +B
22
REC DRIVE
IC603
123
113
DIN1
33
LIN 2
41
LIN 1
44
RIN 2
40
RIN 1
43
LOUT 2
29
ROUT 2
28
XCS
12
PD
KEY-R
47
ADDT
DADT
XBCK
LRCK
FS256
RESET
41
SWDT
6
SCLK
7
SRDT
10
DI XPD ADA
XCS ADASCLK
DO
XCS
4
5
3
2
1
46
MUTE
STB
CDTI
15
CCLK
13
CDTO
SWDT
SCLK
14
SO0
SCK0
SI0
XCS NV
D/A
CONV.
DIGITAL SIGNAL PROCESSOR
EFM/ACIRC ENCODER
ATRAC ENCODER
16M BIT DRAM
IC502 (2/2)
TO PB
SECTION
A
BEEP
POWER/LCD
SECTION
C
TO
POWER/LCD
SECTION
D
12
13
11
HD CON1
30
HD CON2
31
MODE 1
27
MODE 2
28
MODE 3
29
119
111
110
SYSTEM CONTROLLER
IC801 (2/3)
3
BEEP
18
19
XHP STBY
23
MUTE
117
XOPT CONT
116
XJACK DET
114
OPT DET
113
XMIC DET
115
RMC DTCK
2
4
1
EEPROM
IC802
18
17
15
22
24
2
23
R-CH
R-CH
RVCC
KEY-R
DTCK
R-CH
R-CH
HEADPHONE AMP
IC303
OPT
CONTROL
Q302
R-CH
R-CH
R-CH
VC +B
14 12
9
STBY
MIC AMP
IC302
1
J304
2
J302
J303
MIC IN
(PLUG IN POWER)
J301
LINE IN
(OPTICAL)
A/D, D/A CONVERTER
IC301
i
i
• Signal path
: REC
: PB
(Page 26)
(Page 29)
(Page 29)