Advertisement
iii
C301
SYSTEM
CONTROL,
TIMER,
&TUNING
Control.
MPU PIN FUNCTIONS
TABLE
F--"'----
2
3
DRUM
UP
4
SS + DRUM
SHIFT
F'
5
MC
BR
6
C
Vs CUT
""r--"--"---
. . -—
—
7
CAP P.
8
WSS
H
9
Posswo'
'—
1
—--
10
FL. START
'-
+ SAFETYSW
11
12
RESET
4+–
15
CLK 1
14
ELK2
—
-i-
15
Vss
ii
CF 1
.—
17
CF 2
J=-
:9
T. END
S,
20
T. TOP
S.
21
T, iEELs.
22
Pos
SW1+2
T---'" -------
23
TAPE
SPEEO
F
Z!i
r-
liIFI ENV.
s-
57
WIOE
ASPECT
lN–
28
WIDE
ASPECTON
29
POWER
OOWN
30
SHORT
TEST
31
C-
FGP.
3===
32
33
CTL P,
—
34
35
RF SW P.
1=
ii
G-9
39
Gt3
E
60
G7
41
G6
42
'——
G5
43
G4
4;-
G3
i5
G2
;6-
GI
67
VDO
F-
>"1
SEG
i ..—
52
SEG
i
1/0
Signal-Function
Sync. s$gnal ,npul for emslmg channel
dscnminalwn
and N
system
dtscr$mmal, on.
Head drum molor rot&n
speed up SIQnal.
.-
Slgnal for mdlcahng
SLOWISTILL
rnodos and alter.
nabon 01 drum motor control data, (3 value voltage)
'Brake
signal Iorcapslan
molor.
Cut olf for capstan
moto~~onhol
voltage
m SLOW
I
STILL
modc?s,
———
.
.-
Gam down conbol for Head Motor 0( SLOW
mode,
CTL PUISO duly dclocoo"
WIPWII mpul
Used for VISS
dolocfion.
. .
Data lndlcatin~
oporalIon
posd$on of r!!ochnnism.
(OV : SEARCH,
STILL,SLOW,STOP,17
LAY,
and REC
modes)
(5V
EJECT,
REW,
and INITIAL
modes)
—
Swlch
$nput ,md,ca!! rig slarl of cassello
Ioadmg m
discharge
by cassetle
mecharmm
and detecting
accldonlal
ornsure provonhon
Ial> of cmsollo
Iapo,
-
.
—-
Inll;a:
riset Ierrmmi
Ior Ih,s ~C~
ilock
OSC during pinier
fadures.
Frequency
IS 32kHz.
Ground Iermmal
IC clock OSC termmal
Frequency
IS 6 5MHz.
IC vower suDDfv lermmaL(5Vdc)
Sensor sig"al input Iorlapeend
deteclwn.
Sensor
Sqmai Input for tape beginning
dotoction,
Pulse input for deteclwm
of Ioko.up
rl!ot table rolabom
Data mdicalmg
operabon
position 01 mechanism,
(2V: EJECT,FIEW
,and INITIAL
modes) (3,4V; STOP,
PLAY,REC,
and F-SEARCH
modes)
(2.5V.
STILL an
SLOW
modes)
(5V. R-SEARCH
mode)
.—..
—
Inpul of result of tape speed discrimination
by digital
servo Ic.
Tuner AFT S.cuwe
signal Input Ior tuner AFT comro~
Wdeo head !mvelopedelection
Stgnal input for ATFf
function.
Hi-F! audm head envelope
detectvm
sgnal
hput for
ATR function.
(Hi.Fi model o"fy)
Wide aspect wdeo system lndrcahon sqpwd input,
Vkleo wide aspecl
system sekcbon
signal,
Power lailure detection
terminal.
.
REC mode tndicalion
signal tnput (REC
12 V),
FG smml
wmut of cnnsta"
molor.
CTL iwad
recording
/playback
pdse
s@nal input,
—-——
RF sw!tchmg
pulse Input, created
by head drum PQ.
"Remote conlrol signal input.
.H. output during TU AFT mule,
(V-syn modal W&)
Oisplay grid outputs (FLD).
IC power suppfy input. (5Vdc)
-23V input for FLO drwe.
Display
segment
outputs [FLO).
(Includes
key-scan
output)
I==i
$10.
Name
170
1/0
Signal
Function
53
SEG
h
o
54
SEG
g
o
55
'-S E-G "f
o"
s
'SEG
e
o
57
SEG-d
o
Dmpf6y segment
outpuL9 (FLO),
———
-
58
SEG
C
o
(Includes
kev-scan
outmdl
59
- =-II
"
.
SEG b
–o
60
SEG
a
o
— .
..—
6i-
MOD
PAL BG–
0
Signal for RF oulpu{~syefem
salting.
(PAL.B/G)
—..
-—
—__
62
M'OD PAL I
O
Signal Ior RF output TV-system
setii~~
63
'TEST=IGNAL
"–
0
Sianal lof RF lest sianal OUIJNJI.
64
TUNEFi
SOUND
-=1~-:'---"--"
'
'"-'"--""--"""----""--
"0-
"W system
if!dicafion"signal
output.
(PALI H I others L
65
KEY;N
O
66-
KEY IN 1
~
Opcral!on
kay data tnpuf.%
———- -.
67
KEY-IN
2
601"
-
KEY-IN,
-
""I
1"-{
f
69
1-
.
ITT
DATA
=-14----------
1/0 'Data
exchango
wdh"MTS
and NiCAti~eC~"i"r~C-
70
NC
-[-:3-
'"--"-
'--
7t
ITT"CLK
—-———
O" 'TI1o clock piiie
10r"MTS and NICAM
docodor
IC,
.
72
.
.
73
SV S, DATA
O
Output 8-bit X 4 se~~l data giving operallon
mode and
lrackmg
data, etc.,
to dl@t61
servo
IC,
?4
OSD
CS
O
Ghip enable
[access)
signal o@pul l~OSO
IC,
POWER
OFI:
MUTE
"-0
.H. OUIPU1 when power is off, for disable
output s401161,
i5
""44
SV S. CLK-–
"- "-0
"~h=l~c~pti~ital
servo IC.
76
COMMON
DATA
O
'"Te;m"!;i~~=m;~c;tion
of respecsve
dat6 with
0S0
IC, OMSS
lC,a"d
CH+ IC,
.
77
12C S,OATA
1/0
Data exchange
wdh tuning memov,
HIFI, VPS,
POC,
MTS decodor,
and NICAM
docodor
IC.
78
COMMON
CLK
o
The clock pulse [or HIFI ,OSD,
CH+, tuning memo~,
POC ,VPS.
MTS and NICAM
IC,
—
.——.
79
INPUT
SEL A
o
S#gnal to select audio input source. (except
HiFi set)
TUNER
A MUTE
o–
Signal for disable
the tuner audb
s!gnaf,(HiFisel)
.—
Bo
PLL CS
–o
Chp anable
signal output 10 tuner PLL tuning system
IC. (F.syn model)
———
TU PWM
o
Tuning voltage
ou~ut
(PWM
signal),
( V.syn
model )
81
B~N-D 1
0
Tuning
band dala(
BAND
1 and 2: for V.syn
mtie~
PLL DATA
o
Data exchange
wth tuner PLL IC ( for F.syn model ),
82
BAND
2
–0
BANO
1 and 2 ; (L, L). VHF-LOW
(L, H). VHF.HIGH
(H, L). UHF
(H, H)= SKIP.
(Ior V.syn
model)
PLL CLK
o
The clock for PLL IC=I
tuner unit ( for F.svn
model ),
83
CH PLUS
CLK
o
The clock pulse for CH+ inlout.select
IC,(CH+
modef)
AV CTL
o
Audio input source sebcting
for audio IC,
a4
NAP H
o
.H. c@ul
during NTSC
(NAP) playback
mode.
~T''~O%-G'dO'
O
Clock sianal for audio OMSS
unil
mc="=--
0 Signal for
s electing
video ,mp"t sowce.
CH+ mode control sign~inpul
(CH+ model),
O
Signal
for Selecting
AV.inp"t(v!deo/audio)
sou,ce.
9=2:2v'"'p'i"p""'d'
O
STILL,
SLOW,
or X2spaed
modes
indication.
RF=E%s-=-'
-
0
Signal to indcale
CUE, REV, STILL and SLOW
mode=
O
Sianal
to control wdeo-shamnoss.
I
94
I
NORMAL
RE&&S&alforindicatmo
mmmala"diomcordimh
ER=FF--
"
"–
O
Signal for indicating
recording
mode.
O
Signal for indicating
playback
mode,
:=~:i;i''''''"":
.H. output for disable
audio OUIPIJ1 signal.
.HIGH.
oulpul except when power
is off, Indicalmg
Ihal
O
Loading
motor rof6fiin
speed
(bw 1 medium
I hi$)
I
I
I
Indication sianal.
I
1
G
ML- D
o
Loading
motor rolahon
direction
(FWO I REV)
rndicabo" signal.
PP_lTS_B
16
I
17
I
18
I
19
I
20
I
21
I
22
I
23
I
2
-30-
-
Advertisement
