Denon UD-M31 Service Manual page 15

LC75725E(IC401)
BLK
VFL
OSCI
OSCO
Terminal Function
Pin No. I/O Name
1,13 - V
FL
2~12 O G1~G11
14~56 O S1~S43
57 - Vss
58 O OSCO
59 I OSCI
60 - V
DD
61 I BLK
62 I CE
63 I CL
64 I DI
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
49
S8
S7 50
S6 51
S5 52
53
S4
S3 54
55
S2
56
S1
Vss 57
58
OSC0
OSC1 59
V 60
DD
61
BLK
62
CE
CL
63
DI 64
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
DIGIT
DRIVER
GRID
CONTROL
TIMING
GENERATOR
DIVIDER
CLOCK
GENERATOR
Function
Power supply pin to driver block
Digit output pin
Segment output pin
power supply pin
Pin for oscillator
Pin for oscillator
Power supply pin to ligic block
Display off input pin
Input for serial data transfer
CE : Chip enable
CL : Sync clock
DI : Transfer data
32 S25
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
SEGMENT DRIVER
MPX
LATCH
DIMMER
TIMING
GENERATOR
SHIFT REGISTER
ADDRESS
DETECTOR
15
UD-M31
S26
S27
S28
S29
S30
S31
S32
S33
S34
S35
S36
S37
S38
S39
S40
15