Block Diagram - System Control/Power Section - Sony MZ-G755 Service Manual

6-4. BLOCK DIAGRAM — SYSTEM CONTROL / POWER SECTION —
MAIN BOARD
(3/3) SYSTEM CONTROL/POWER SECTION
AUDIO
6
RMC KEY
SECTION
(Page 32)
SDO0
AUDIO
3
SECTION
SCK0
(Page 32)
(Page 31)
CLK
SERVO
2
SECTION VREF
CN801
SDO0
2
SCK0
3
RST
5
STB
4
CS
6
8
REC
12
SWITCH
&
R1031
PLAY
LCD MODULE
15
UNIT STOP
16
R1032
RESET VIF B+
SWITCH
DVDD
VB B+
1 VIF B+
Q801
PAUSE
13
SET KEY1
10
SET KEY2
9
HOLD
11
7
14
S806
OPEN/CLOSE
DETECT
S803
PROTECT
DETECT
SL801
(TEST)
VIF B+
VB B+
Q1007
RMC KEY 20
FS4 86
CLK SEL 169
FFCLR 236
SLEEP 235
234
VLON
PLAY 17
REC KEY 18
HALF LOCK SW 19
S805
(HALF LOCK)
SYSTEM CONTROLLER
IC801 (3/3)
R1029
STOP 15
L801
AVDD 21
D1003
187 LCD RST AUX
VB
206 LCD STB
Q1010
XCS LCD
205
TSB MST VDD 141
VC
(Page 32)
AUDIO
4
X MIC DET
SECTION
1 PAUSE KEY
13 SET KEY1
VL PWM 164
14 SET KEY2
227 XHOLD SW
165
VC PWM
170 OPEN CLOSE SW
XRST 8
230
PROTECT
VC
D1004
VB
3 XTEST
L1002 L1001
D1001
48
AUXI
CONVERTER
Q1001
IC1003
10 VOLTAGE
VB MON
DETECT
IC1002
CHG MON 11
CHG GAIN 237
238
CHG
16
HIDC MON
GND SW 171
VL L904
LASER APC CIRCUIT
B+
Q1009 VD
SYSTEM CONTROLLER (IC801)
B+
VG
AUDIO
5
VC B+
SECTION VIF
D1002
A/D CONVERTER (IC301),
(Page 32)
RF AMP (IC501)
SYSTEM CONTROLLER (IC801)
EEPROM (IC804)
V+ B+
DC-DC
MIC AMP
CONVERTER
(IC303) VA
IC1006
A/D CONVERTER (IC301),
B+
SYSTEM CONTROLLER (IC801)
B+
MIC VC
REMOTE CONTROL CIRCUIT
DETECT
B+
Q1008
NOISE
FILTER
NOISE
FILTER
VRECO
OVER WRITE
L602
HEAD DRIVE
CIRCUIT
Q1003 Q1006
B+
Q1005
VOLTAGE VOLTAGE
DETECT DETECT
Q1004
IC1005 IC1004
NOISE
FILTER
Q1002
VG B+
VIF B+
VC B+
33 33
VRMC
7
XWK3
4
CLK
56
CLK SEL
52
FFCLR
54
SLEEP
SYSTEM
55
VLON
CONTROL
1
XWK1
POWER CONTROL
2
IC901
XWK2
3
XWK4
5
VAIFON
53
VB
VSTB
6
VC
VL
VLD
9
10 REGULATOR
VL
11
VREF
BANDGAP
49 L2
SWITCHING
REFERENCE
12
REGULATOR
L2
16
DTC2 STEP-UP
24
PRE DRIVER
25 DTC1 &
RF2
PWM LG
STEP-UP
18
DC/DC
VG
VDFB
19
39
CONVERTER
VD
44
VIFFB
SERIES
38
PASS
VIF
42 VC2
REGULATOR
45
VA
41
D904
VC
VCO 36
35 REGULATOR
VC
34
INM2
SWITCH
22
RF2
23
VOUT
33
INM1
26
L1
RFI SWITCHING
27 32
REGULATOR
L1
28
STEP-UP
RESET SIGNAL
XRST
46
PRE DRIVER
GENELATOR
&
VB 50
CRST DTC1
PWM
47
VRECO1 L1 1
L601
10 SWITCHING 11
VRECO2
L1 2 B+ SWITCH
REGULATOR
15 14
Q603
DW BT
VREC STEP-UP DOWN
16 SWITCH 22
PRE DRIVER
DW TP
INM1
&
21
19
PWM
CHARGE
CONTROL
RF2
Q602 (2/2)
RF1
49
20
BATTERY INM2
48
CHARGER
INP2
47
&
36 VG
POWER
REGULATOR
CONTROL RS
46
IC601 (2/2)
8 VI0
CHG SW
CHARGE
45
26 VC2
CONTROL
9 VC
VB
CHGMON 43
CHARGE
51
BATM
MONITOR 44
VIF B+
GAIN SYSTEM
54
DREG
CONTROL 56
CHG
55 LINE
(2/2)
DCIN 50
FILTER
D605 T601
MZ-G755
VB
HEADPHONE
AMP (IC302),
MOTOR/COIL
DRIVER (IC551)
B+
D902
L902
L905
D903
VG
MOTOR/COIL
DRIVER (IC551)
POWER CONTROL
(IC601)
B+
D901 L901
CHARGE
D603
RECHARGEABLE
BATTERY
(NICKEL-CADMIUM)
NC-WMAA
1.2V 1400mAh
CHARGE
CONTROL
Q602 (1/2)
TH601
GROUND LINE
SWITCHING
J601
Q601
DC IN 3V
!