Block Diagram - Audio Section; Block Diagram - System Control Section - Sony MZ-R37 Service Manual
Portable minidisc recorder
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Also See for MZ-R37:
- Operating instructions manual (76 pages) ,
- Specification sheet (2 pages) ,
- Operating instructions manual (76 pages)
Table of Contents
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6-3. BLOCK DIAGRAM — AUDIO SECTION —
DIN
A/D, D/A
CONVERTER
RCH
IC301
ADC
SERVO
A
SDTO
4
41
SECTION
AUDIO
LRCK
2
I/F
(Page 26)
3
44
7
MIC AMP
5
BCK
CONTROL
SDTI
5
RCH
IC302
DAC
8
25
MCLK
1
XRST
46
26
MIC 2.5V
29
15 14 13 12 47
SYSTEM CONTROL
17
9
IC801 (2/3)
90
XPD ADA
LINE/HP AMP
89
XCS ADA
IC303
SCK 2
7
5
SDI2
EEPROM
6
SDO2
16
4
IC803
CS
1
96
XCSNV
BEEP
81
21
DO
3
AMUTE
93
23
MUTE
VCOM
6
DI
4
OPT CONT
94
SCK
2
XJACK DET
66
OPT DET
67
XMIC DET
68
XLINE DET
24
DTCK
11
KEY RMC
49
SYSTEM
CONTROL
B
KEYRMC
SECTION
Signal path
04
(Page 29)
: PLAY(DIGITAL)
: REC(DIGITAL)
: PLAY(ANALOG)
: REC(ANALOG)
R-ch : same as L-ch.
– 27 –
OPT
2.8V
CONTROL
Q302
J301
LINE IN
(OPTICAL)
R-CH
J303
MIC
(PLUG IN POWER)
REG
IC304
5
XCE
MIC2.5V
3
OUT
IN
2
2.8V
R-CH
J302
LINE OUT
R-CH
J304
/REMOTE
RVCC
DTCK
(+2.8V)
KEY R
– 28 –
6-4. BLOCK DIAGRAM — SYSTEM CONTROL SECTION —
AUDIO
B
KEYRMC
SECTION
(Page 27)
SYSTEM CONTROL
IC801 (3/3)
WP
65
LCD RESET
45
LCD SCK
44
LCD DATA
LCD
43
LCD XC D
MODULE
42
LCD STB
KEY ON
91
WITH
38
MRST
SWITCH
UNIT
57
KEY 1
POWER
VCC
SWITCH
56
KEY 2
SLEEP
17
(+2.8V)
Q801(1/2)
21
HOLD
36
XLCD
41 EXTAL
INMU0
37
S804
X801
SYNCHRO
12MHz
40
XTAL
REC
OFF
22
SYNC REC
ON
INMU1
25
S805
Digital
23 DBB
MEGA BASS
S803
NI MH CHG
16
T. MARK
18 T.MARK
FFCLR
95
WP
13
Q902
TEMP
VCC
1
METER
4
54 TEMP
(+2.8V)
S802
IC802
(OPEN 2)
CHG MNT
46
VDD
(+2.9V)
S801
(OPEN 1)
14 OPEN
60
BAT VC
S881
DISPLAY
HIDC MNT
48
55 KEY3
S882
MODE
D801
WP
Q821
04
– 29 –
POWER CONTROL
IC901
SERVO
C
FS4
68
FS4
SECTION
VDD
25
REMKEY
VC
67
(Page 26)
(+2.9V)
24
KEY ON
6
14
XRST
VLG2
+2.8V
VLG20
47
VLG20
48
+2.8V
72 SLEEP
32
UNREG
VB
VB
33
23 INMU
VL
37
VL1
38
D905
Q801
VB
39
(2/2)
VB
40
IC971
IC972
L4
49
DC-DC CONVERTER
REG
D906
VDD
61
2
VOUT
VCE
1
1
VOUT
VIN
3
Q901
EXT
5
RECHARGEABLE
Q971
BATTERY
(NC-AA)
700mAh 2.4V
Q903
10 CHG
70 FFCLR
69 WAKEO
Q906
INM4
54
71 WAKE
RF4
55
52 RS
D901
51 CHG SW
D902
T901
DC IN
57
J901
DC IN 4.5V
¥
IC951
(CHASSIS)
(CHASSIS)
4
1
Q851
– 30 –
MZ-R37
- Quick Links:
- Self-Diagnostic
- Test Mode Setting
- Self-Diagnostic Mode
- General
- Test Mode
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