Sony DTC-670 Service Manual page 47

lGtl I Mechanism/Servo Micon |CXP80524-046O)
The mechanical deck servo systems are conrrolled by the captioned micon according to instnrctions from the main micon (IC3l2).
Pin No. Pin Name
vo
Connected to
Description
I
2
J
5
BUSY
REEL CCW
REEL CW
o
o
o
o
o
Main Micon
Mechanism
Mechanism
Not in use
Busy (Active "L") to the Main Micon
Not in use
Reel motor CCW ("L": RVS direction)
1 *,
Reel motor CW ("H": FWD direction) r
6
7
8
9
l 0
C DIR RVS
PLN ON
PLN KICK
D O N
D DIR RVS
o
o
o
o
o
Mechanism
Mechanism
Mechanism
Mechanism
Mechanism
Capstan Dûection ("L": FWD, "H": RVS)
Plunger On
Plunger Kick
Drum On ("H": The drum is revolving)
Not in use
I l - 1 6
t 7
l 8
l 9
20
LE
LL
CAS-M-OUT
CAS M IN
o
o
o
o
o
Mechanism
Mechanism
Mechanism
Mechanism
Not in use
Loading Motor Eject 1*,
Loading Motor Load r
-
::::::: :::i:l T::: 1"' ) ",
2t-24
25
26
27-30
RE FWD
RE STOP
END-LED-ON
I
I
o
Mechanism
Mechanism
Mechanism
Not in use
Encoder SW2
) *a
Encoder SWI '
End sensor ON
Illuminated upon "L" (rectangular wave of about I kHz). It is not
ourput unless a cassette is mounted ("H").
3 l
33
34
35
MP
RST
Vss
XTAL
EXTAL
I
I
o
I
cxD260lAQ
Microprocessor mode selected (the equipment is fixed at "L").
System Reset (low active)
Power terminal (GND)
System Clock Ourput (Not in use)
System Clock Input (9.408 MHz)
36-39
40
4 l
42
43
44
45
x_sRV_REQ
MAIN DT I
MAIN DT O
MAIN-CK
AVss
AVref
I
I
o
I
Main Micon
Main Micon
Main Micon
Main Micon
Not in use
Request for communication from the Main Micon
Serial Input from the Main Micon
Serial Ouçut to the Main Micon
Serial Clock with the Main Micon
GND for A/D
Reference Voltage for A/D (+5 V)
46
47
48
49
50
AVdd
T END
S_END
CAS-IN
REC EN
I
I
I
I
Mechanism
Mechanism
Mechanism
Mechanism
Power Supply for A/D (+5 V)
Take-up side end sensor input (analog) l Magnetic maner: 0V,
Supply side end sensor input (analog) J Leader tape: AC (*5)
Cassene-in switch (S0l). "H": Cassette is mounted.
Rec-enable switch (S0l). "H": REC enabled.
5 l
52
53
54
CAS LCKed
CAS_OUTed
ATF IN
I
I
I
I
Mechanism
Mechanism
RF Amp
Casecon locked Upon completion of loading: "H"
Casecon outed
Upon completion of loading OUT: "H"
Not in use
ATF PILOT input
5 5
56
F G T
FG-S
Mechanism
Mechanism
Reel FG (T Side) 1 6ï24H2 (Small reel diameter) -
Reel FG (S Side) t lsl24Hr(Large reel diameter) (ln SP FwD)
57
5 8
59
60
C F G
D F G
D P G
D REF
Mechanism
Mechanism
Mechanism
cxD260lAQ
Capstan FG SP: 674 Hz,LP:337 Hz
Drum FG
4A0Hz: LP REC. 800 Hz: Other modes
Drum PG l Other than LP REC: 8ffil24Hz
Drum Referenc. J In LP REC
(/i,/?iHz
- 4 5 -