Interface Control Block Diagram - Sony DVP-NS50P Service Manual

Q Q
3 7 6 3 1 5 1 5 0

3-7. INTERFACE CONTROL BLOCK DIAGRAM

IF-124 BOARD
(SEE PAGE 4-19 to 4-20)
T E
L 1 3 9 4 2 2 9 6 5 1 3
w w w
.
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IC 407
3.3V
4 5
NS52P only
REGULATOR Except NS52P
D407 D401
80
PROG LED
EVER+3.3V
78
VCC
IC 406
5 VDD
IR
3 1 11 IR
RECEIVER
EVER+3.3V
IC 408
2 RESET 1 8 /RST
EVER+3.3V
VFD DRIVER CIRCUIT
40 VKK
SW-10V
1 2 40 41
12 50
SEG 1-20
38 69
ND401
FLUORESCENT
INDICATOR
4 71
TUBE
DIG 1-7
11 77
x a o u 1 6 3
y
i
3-13
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8 9
SYSRST 7
/CS 14
15
SI
SO 16
/SC 17
23
/AMUTE
/VMUTE 24
BUSY 27
PCONT 26
POWER 37
O/C 35
Q Q
3 7 6 3 1 5
IC 404
R431 R430
IF CON
AD1 34
Except NS52P
S405 S404 S403
36
AD2
S407
2
XIN
X401
8MHz
3
XOUT
c o
.
2 4 2
9 8
CN401
SW-10V
15
EVER+5V
13
SW+3.3V
11
SYSRST
2
XIFCS
4
SOO
7
SIO
6
SCO
9
A-MUTE
14
V-MUTE
10
XIFBUSY
5
PCONT
12
POWER-SWITCH
16
OPEN/ OPEN/
S409
S401
CLOSE CLOSE
1 5 0 8 9 2 4 9 8
Except NS52P NS52P only
R429
NS52P only
S408 S402
R428
S406 S410
Except NS52P NS52P only
m
3-14E
DVP-NS50P/NS41P/NS52P
9 9
SYSTEM CONTROL
(SEE PAGE 3-5 to 3-6)
2 9 9