Sony MZ-R55 Service Manual page 118

IC505 MPC17A58DTBEL
36 35 34 33 32 31 30
VG
PRE-DRIVER
STEP
MOTOR
DRIVER
1 2 3 4
IC509 MN41X17400CTT
VDD 1
DQ0
2
DQ1
3
WE 4
5
RAS ROW
ADDRESS
BUFFER
NC 5
A10 7
A01 8
COLUMN
A02 9
ADDRESS
A03
10
BUFFER
A04 11
12
VDD
ON CHIP
VSS
GENERATOR
29 28 27 26 25
CONTROL
PRE-DRIVER
5 6 7
CLOCK GENERATOR
CBR REFRESH
COUNTER
ROW WORD
DECODER DRIVER
24 23 22 21 20
VC
CONTROL CONTROL
PRE-DRIVER
PRE-DRIVER
HALF
BLIDGE
DRIVER
H BLIDGE
DRIVER
CH3
8 9 10
CLOCK
GENERATOR
DATA
INPUT
BUFFER
MEMORY
CELL
SENSE
I/O
AMP
SELECTOR
COLUMN
DATA
DECODER
OUTPUT
BUFFER
– 51 –
19
CONTROL CONTROL
PRE-DRIVER PRE-DRIVER
H BLIDGE
DRIVER
CH2
11 12 13 14 15
24 VSS
23 DQ3
22 DQ2
21 CAS
20 OE
A10
19
18 A09
17 A08
16
A07
15 A06
14
A05
H BLIDGE
DRIVER
CH1
16 17 18