Sony MZ-E909 Service Manual page 24

MZ-E909
r IC BLOCK DIAGRAMS
IC301 TA2131FL(EL)
18 17 16 15 14 13
PW MT BST
BEEP
V REF
SW SW SW
TC MT 19
VCC 20
ADD
INR 21
BST1
INL
22
BEEP PW PW
BST2
23
OUTB A B
BEEP
24
OUTA
BST
AGC
1 2 3 4 5 6
IC551 SC111258FCR2
56 55 54 53
VC
OE
VI1
1
3Phase
control
WI1
2
ch1
VG VC
PGNDW1
3
WO1
4
WMVW1
5
3Phase
Pre driver
VO1
6
ch1
PGNDUV1
7
UO1
8
VMU1
9
VG VC
VMR1 10
RO1
11
H-BRIDGE
PGND1
12 PRE
DRIVER
CH1
FO1 13
VC
VMF1 14
VG VC VG VC
H-BRIDGE
U V
CONTROL
CH1
15 16 17 18 19
VREF
12
11 LPF1
10 BST NF1
9 LPF2
8 BST NF2
7 BST OUT
48 47 46 45 44
52 51 50 49
VC
VG VC
VC
3Phase
BIAS
control
OE ch2
VC VG
ROE
3Phase
Pre driver
ch2
VC VG
GND
H-BRIDGE
PRE
DRIVER
CH2
VC
VG VC VC VG VCVG VCVG
H-BRIDGE
W U V W
CONTROL
CH2
OE
22 23 24 25 26 27 28
20 21
IC501 SN761057DBT
REXT
Wpp-LPF
VREF
D-C
A-C
TON-C
43 UI2
CIG
42 VI2
CDN
WI2
41
PD-NI
40 PGNDW2 PD-I
PD-O
WO2
39
ADFG
38 VMVW2
DVDD
37 VO2
36 PGNDUV2
35 UO2
34 VMU2
VMR2
33
32 RO2
PGND2
31
30 FO2
29 VMF2
24 24
A+B+C+D
I+J
NPP
TE 1
TON
2 CSL
3 Aw+Dw
S-MONITOR
TON Peak
4
TON Botm
C
5 ADIP
TE
D 6
TE
TEMP
7
Tpp/Wpp
Iy 8
Ix
9
FE
Jx 10
Jy 11
ABCD
A 12
13
B
14
15
16
17
18
19 APC
20
ADIP
21
22
44 ADIP-IN
43 S-MON
TWpp
PK/BTM
Aw
CSLO
VREF075
A-C
D-C
Malfa
Mij
AwBPF
Dw
DwBPF
42 FE
41 ABCD
AVCC
40
39 OFC-1
38 OFC-2
37 PS
36 LP
RF
35 EQ
34 AGND
33 RF
32 CCSL2
31 VC
VREF075
30
29 PEAK
PEAK/BOTM
28 BOTM
27 DGND
OFTRK
26
T-ON
25 XRST
SERIAL
24
SCK
I/F
23 SBUS