Sony SLV-7700KME, Руководство по обслуживанию, Страница: 86 / 135

6-6
Pin No.
Pin Name
I/O
Function
1
RF SWP
O
RF switching pulse output.
2
QVD
O
Quasi
VD pulse output.
3
QHD ENBL
O
Quasi HD v
olta
ge le
v
el contr
ol.
4
AF REC P
O
"H" output when hi-f
i audio REC.
5
JOG
O
"H" when trick play mode.
6
P
AL60
O
NTSC PB contr
ol signal. "H" when NTSC PB on P
AL
TV
.
7
REC CTL
O
REC CTL signal output.
8
CAP TRQ3
O
Capstan current control.
9
APC2
I/O
APC control terminal 2.
10
APC1
I/O
APC control terminal 1.
11
SCORE1
I
F
ix
ed to L.
12
SCORE2
I
F
ix
ed to L.
13
NC
–
Not used.
14
NC
–
Not used.
15
NC
–
Not used.
16
N
A
REC P
I/O
Normal audio recording mode. H : recording mode.
17
A MUTE
O
"H" when audio mute.
18
MESECAM
I/O
"H" in MESECAM mode.
19
SP/EP/LP : HiZ
I/O
"L" output when SP mode. "H" output when EP mode. Input setting is LP mode.
20
YNR
I/O
YNR control.
21
AMS
I
KARA
OKE playback sound blank detect input.
22
NC
–
Not used.
23
VPB
O
V
ideo system playback mode
. "
L
" when playback.
24
NTSC
O
"H"
: P
AL mode. "
L
" :
NTSC mode.
25
NC
–
Not used.
26
NC
–
Not used.
27
MODE4
I
Mechanism section CAM encoder input.
28
MODE3
I
Mechanism section CAM encoder input.
29
MODE2
I
Mechanism section CAM encoder input.
30
MODE1
I
Mechanism section CAM encoder input.
31
CAM 12V
O
CAM motor r
ef
er
ence v
olta
ge.
32
T/E LED
O
T/E LED output.
33
CAP TRQ2
O
C
apstan curr
ent control signal 2. L: FF/REW to ST
OP
.
34
CAP TRQ1
O
C
apstan curr
ent control signal 1. L: SLO
W speed do
wn.
35
CAP ST
OP
O
C
apstan ST
OP signal output.
36
FULL ERS
O
Full erase control.
37
CAM UNLO
AD
O
Loading motor rotating direction control.
38
CAM LO
AD
O
Loading motor rotating direction control.
39
MP
I
F
ix
ed to L.
6-8. SER
VO/SYSTEM CONTROL
MICROPROCESSOR PORT FUNCTION DESCRIPTION (MA-303 BOARD IC201 CXP87360-048Q)
Pin No.
Pin Name
I/O
Function
40
ASURA RESET
I
System reset input.
41
VSS
–
GND.
42
XT
AL
–
System clock. (16 MHz)
43
EXT
AL
–
44
ASURA CS
I
S/S microcomputer chip select signal.
45
S IN 0
I
Serial communication signal.
46
S OUT 0
O
Serial communication signal.
47
SCLK
O
Serial communication signal.
48
REC
O
Supply for HEAD amp. recording
49
RF SWP
O
V
ideo head s
witc
hing position adjustment.
50
RF ENV
I
V
ideo playback signal en
velope
.
51
AF SW POS
I
Hi-Fi switching position adjustment.
52
A
VSS
–
UNSW GND.
53
A
VREF
–
AD por
t ref
er
ence input UNSW 5V
.
54
A
VDD
–
UNSW 5V
.
55
AF ENV
I
Hi- Fi audio pla
yback signal en
v
elope
.
56
HF
ADJ
I
ADJ mode set. 0V : Hi-Fi
Adj
57
MIC LEVEL
I
Mic v
olta
ge le
v
el input (for
V
. assist,
SCORE function)
58
SOUND LEVEL
I
Sound v
olta
ge le
vel input (for SCORE function)
59
NT PB SW
I
NTSC PB mode set. 0V : 3.58NTSC,
2.5V :
4.43NTSC,
5V :
on P
AL
TV
.
60
APC ERR
OR
I
APC3 feedback v
olta
ge input.
61
S SENS
I
Supply end sensor input.
62
T SENS
I
T
ak
e-up end sensor input.
63
SREEL FG
I
S
side reel FG input.
64
TREEL FG
I
T
side reel FG input.
65
NC
–
Not used.
66
V SYNC
I
Composite sync input.
67
PB CTL
I
Playback CTL input.
68
DRM PG
I
Drum PG input.
69
DRM FG
I
Drum FG input.
70
CAP FG
I
Capstan FG input.
71
NC
–
Not used.
72
PO
WER CONT CD
O
P
o
w
er control signal.
73
CAP D
A
O
Capstan error D/A output.
74
DRM D
A
O
Drum error D/A output.
75
ORC SETTEI
O
"H" when ORC measurement.
76
PO
WER CONT
O
P
o
w
er suppl
y contr
ol signal.
77
NC
–
Not used.
78
NT JUDGE
I
4.43/3.58 judge input.