Sony MDS-B6P Service Manual page 65

IC201 CXA8027N-ELL2000
24 23 22
OVER
HEAT
PROTECT
START TIMING
CONTROL CONTROL
EXOR
1 2 3
IC304, 306 M66500FP
64 63 62 61 60 59 58 57
1
PF6
PORT F
PF7 (8 BIT)
2
VCC 3
8
PE0 4
PE1
5
6
PE2
PE3 7
PORT E
8
PE4
(8 BIT)
PE5 9
PE6 10
8
11
PE7
12
GND3
13
PB0
PB1 14
PB2 15
8
PORT B
PB3 16
(8 BIT)
PB4 17 8
PB5 18
PORT A
PB6 19
(8 BIT)
20 21 22 23 24 25 26 27 28
21 20 19 18 17
ROTOR
POSITION
DETECT
SOFT OUTPUT
SWITCHING DRIVE
DRIVE BUFFER
4 5 6 7
56 55 54 53 52
PORT G PORT C
51
(4 BIT)
(HIGHT 4 BIT)
50
4 4
49
PORT C
48
(LOW 4 BIT)
47
4
46
45
44
43
42
DATA BUS
41
BUFFER
40
39
38
37
READ / WRITE
36
CONTROL
35
BLOCK
34
33
29 30 31 32
16 15 14 13
U
V
DRIVER
W
8 9 10 11 12
PC1
PC0
PC4
PC5
PC6
PC7
D7
D6
D5
D4
D3
D2
D1
D0
A0
A1
A2
GND1
RESET
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