Sony MZ-R91 User Manual
MZ-R90/R91
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6-2.
BLOCK DIAGRAM – A/D, D/A CONVERTER, AUDIO Section –
6-3.
BLOCK DIAGRAM – KEY CONTROL/DISPLAY/POWER SUPPLY Section –
A/D, D/A CONVERTER
IC301
EEPROM
IC802
05
D
(Page 24)
F
(Page 24)
•
SIGNAL PATH
: REC (ANALOG IN)
: PLAY (ANALOG OUT)
: REC (DIGITAL IN)
RESET
A
(Page 24)
ANALOG REC
VR B+
VC B+
VC B+
B+ SWITCH
Q305, 306
B+ SWITCH
Q302
LINE AMP
IC302
LINE AMP
IC303
LINE OUT
ON/OFF SWITCH
Q101, 201
MUTING
Q101, 201
MUTING
CONTROL SWITCH
Q308
LINE OUT ON/OFF
CONTROL SWITCH
Q307, 309
CD TEXT COPY
DEETCT
Q801
LEVEL SHIFT
Q802, 803
LEVEL SHIFT
Q805
LEVEL SHIFT
Q806
+2.5V
REGULATOR
IC304
+2.5V
REGULATOR
IC305
BEEP TONE
BUFFER
Q301, 303
DADT
DADT, XBCK,
LRCK, FS256
LRCK, FS256
6
XBCK
3
LRCK
2
FS256
1
SRDT, SWDT,
SCLK
SCLK
SWDT
SCLK
SRDT
SWDT
SCLK
SRDT
H
(Page 27)
RMC KEY
HIGH-PASS
FILTER
DPGA
DBB
D/A
CONVERTER
A/D
CONVERTER
AUDIO
INTERFACE
CONTROLLER
CONTROL
REGISTER
INTERFACE
CLOCK
DIVIDER
B
(Page 24)
C
(Page 24)
DIGITAL REC
LEVEL SHIFT
Q804
SUB
TRACTION
LOW-PASS
FILTER
BATT B+
BACK-UP BATT B+
D804
D801
VDD
X802
32.768kHz
TSB CLOCK
SWITCHING
Q807
RMC DTCK
RVCC
DTCK
CDWM 2V
CDWM DATA
CDWM 2V
CDWM DATA
KEY-R
RGND
VC B+
LIN1
ADCL
ADCR
LOUT1
ROUT1
PGAL
PGAR
OPGAL
OPGAR
STDI
4
STDO
BCLK
LRCK
LRCK
MCLK
18
CDTI
16
CCLK
17
CDTO
15
62
61
DO
DI
SK
XCS
XCS NV
VRAD
SO1
TSB CLKCTL
SI1
BEEP
XHP STBY
XCS ADA
2
9
8
10
4
3
2
1
38
VRDA
35
19
TSB SLV ON 34
71
70
SCK1
72
TSB EDGE
41
TSB SL
V CTL
48
23
18
MUTE
56
LIN2
53
RIN1
55
RIN2
52
LOUT2
37
ROUT2
36
33
32
47
43
34
31
48
42
110
XPD ADA
111
119
REAL TIME CLOCK
IC804
SWDT
SCLK
SRDT
SDO
SDI
OSCIN
OSCOUT
X801
16.9344MHz
46
45
EXT
AL
XT
AL
SCK2
CS-R
TC
CS R
T
C
3
4
2
7
101
117
OPT DET 113
XOPT CONT 116
XJACK DET 114
XMIC DET 115
XRST
PD
(LINE IN JACK)
+
+
OPTICAL
RECEIVER
J304
i
/LINE OUT
J301
LINE IN
(OPTICAL)
J303
MIC
(PLUG IN POWER)
+
XCS
DC/DC
CONVERTER
IC803, Q809
SYSTEM CONTROLLER
IC801 (2/3)
POWER CONTROL
IC901
05
LINE FILTER
LF901
+2.5V
REGULATOR
IC902
H
(Page 26)
RMC KEY
STEP-UP
DC/DC
CONVERTER
SWITCHING
REGULATOR
SWITCHING
REGULATOR
SWITCHING
REGULATOR
STEP-UP
PRE DRIVER
& PWM
SYSTEM
CONTROL
SWITCHING
REGULATOR
Q904
REGULATOR
S802
OPEN .
S807
SYNCHRO REC
J901
DC IN 3V
!
GROUND LINE
SWITCHING
Q902
CHARGE ON
SWITCH
Q901 (1/2), 905
CHARGE
CONTROL
Q906
CHARGE
CONTROL
Q901 (2/2)
POWER OFF
RESET SWITCH
Q808
LCD
DRIVER
LCD
SYSTEM CONTROLLER
IC801 (3/3)
G
(Page 24)
OE
E
(Page 24)
SWDT, SCLK
BAT1
LITHIUM
BATTERY
(FOR BACK UP)
BACK UP BATT B+
SWDT
SCLK
SDO
SCK
RST
CS
STB
LCD STB
XCS LCD
VR B+
BP801
(TEST)
S806
(PROTECT DETECT)
SYNC REC
BATT B+
VC B+
RF1
VC
VBAKN
RMC KEY
FFCLR
SLEEP
REG CTL PWM
WK DET
HALF LOCK SW
VSTB
XWK3
FFCLR
SLEEP
CLK
XWK2
XWK1
XWK2
XWK1
XWK4
VB
VC
XRST
RF1
STEP-UP
PRE DRIVER
& PWM
RESET SIGNAL
GENEARTOR
RF2
VCIN
VC
VROUT
VCON
VLD
VREG
VR
VG B+
MOTOR/COIL DRIVE
(IC601) B+
OVER WRITE HEAD
DRIVE CIRCUIT B+
VR B+
VLD B+
LASER APC CIRCUIT B+
VC B+
RF AMP (IC501), DSP (IC502),
MOTOR/COIL DRIVE (IC601),
OVER WRITE HEAD DRIVE (IC603),
SYSTEM CONTROLLER (IC801),
REMOTE CONTROL CIRCUIT B+
VREG B+
DSP (IC502) B+
(FOR INTERNAL LOGIC)
VG
L2
SWVG
D901
L902
CHG
MON
MON
COMPARATOR
& BUFFER
CHGB
SERON
RF3
BATT B+
MOTOR/COIL DRIVE (IC601),
OVER WRITE HEAD UP/DOWN
MOTOR DRIVE (IC602) B+
CHARGE
(BATTERY CASE)
VB
RF5
INM5
RS
CHGSW
VB
INP3
BATM
D907
22
21
20
89
1
24
38
33
37
36
43
34
35
32
85
78
39
40
64
83
84
VC PWM 66
XCHG 59
SERON 58
16
26
L1
PWMVC
28
25
29
31
30
19
17
8
46
47
15
XRST
XRST 43
40
7
48
5
DCIN
1
44
2
4
12
11
10
3
+
+
–
RECHARGEABLE
BATTERY
(NICKEL-METAL)
NH-14WM 1.2V
B UP BATT
SWITCH & LCD MODULE UNIT
DRY BATTERY
SIZE “AA”
(IEC DESIGNATION R6)
1PC. 1.5V
+
–
–
+
–
–
RF2
VR
23
VRM PWM 65
CHG MON 81
GND SW
VRM MON
42
+
–
–
D905
L904
D906
L905
ON
OFF
S804
HOLD
S803
T MARK
REC
XHOLD SW
73
T.MARK
56
PROTECT
3
OFF
HOLD
S901
(BATTERY IN DETECT)
XGUN ON
14
S801
(OPEN/CLOSE DETECT)
OPEN CLOSW SW
50
XTEST
60
REC LED
REC LED
69
PAUSE
PAUSE
PAUSE KEY
4
REC
REC
REC KEY
88
SET KEY 1
86
SET KEY 2
87
SET KEY 1
SET KEY 2
XWK1
LCD RST