Sony Mz-G750 Service Manual page 44

MZ-G750/R700
• IC BLOCK DIAGRAMS
IC501 SN761057DBT
TE 1
REXT 2
Wpp LPF 3
VREF 4
C 5
D 6
TE
D-C 7
Tpp/Wpp
Iy 8
Ix
9
FE
Jx 10
Jy 11
A 12
A-C 13
B
14
TON-C 15
CIG 16
CDN
17
PD-I 18
PD-NI 19 APC
PD-O 20
ADIP
ADIP 21
DVDD 22
IC1002 XC61CN1102MR (MZ-G750)
IC1004 XC61CN1702MR (MZ-G750)
IC1005 XC61CN1002MR (MZ-G750)
VREF
1 2 3
VOUT VSS VIN
ADIP-IN
44
43 S-MON
A+B+C+D TWpp
I+J PK/BTM
NPP Aw
TON CSLO
CSL VREF075
Aw+Dw A-C
S-MONITOR
TON Peak D-C
TON Botm Malfa
ADIP Mij
TE AwBPF
Dw
TEMP
DwBPF
42 FE
41
ABCD
40 OFC-1
39 OFC-2
38 AVCC
37 PS
36 LP
RF
35 EQ
34 AGND
33 RF OUT
32 CCSL2
VC
ABCD 31
VREF075
30
29 PEAK
PEAK/BOTM
BOTM
28
OF TRK
27 DGND
OFTRK
26
T-ON
25
XRST
SERIAL
24
SCK
I/F
23 SBUS
IC1006 XC6371C271PR (MZ-G750)
CE VOUT NC
3 2 1
VDD
CHIP ENABLE
VREF
PHASE
SLOW
COMP
START
PWM/PFW
VLX
CONTROL
LIMITER
OSC
BUFFER
4 5
EXT VSS
IC551 SC111257FCR2
42 41
VG
VC
PGNDW 43
WO 44
VMVW 45
VO 46
PGNDUV 47
UO 48
VMU 49
GND2 50
CPWI 51 –
+
CPVI 52 –
+
CPUI 53 –
+
COM 54
CPWO 55
CPVO 56
1
IC303 NJM2173AV
DC MIC
OUT2 CUT2 IN2 V+2
14 13 12 11
1 2 3 4
OUT1 IN1
DC MIC
CUT1 V+1
44 44
40 39 38 37 36 35 34 33 32 31 30
–
+
VC VG
–
PRE DRIVER PRE DRIVER
+
VC
H-BRIDGE H-BRIDGE
CONTROL CONTROL
VC
BIAS
VC
H-BRIDGE H-BRIDGE
CONTROL CONTROL
VC VG
VC PRE DRIVER PRE DRIVER
3PHASE
CONTROL
2 3 4 5 6 7 8 9 10 11 12 13
GV STBY V+
10 9 8
GV
REG
5 6 7
REG NOISE GND
29
28 VM4
VC VG
VC
27 RI4
26 FI4
25 RI3
24 FI3
VG
23 VG
VC
22 VC
21 GND1
20 PWM24
19 FI1
18 RI1
17 FI2
16 RI2
VC
VC VG
15 VM2
14