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©1C704 (MN6617): Signal Process
Terminal
No.
Symbol
BLKCK
This terminal outputs a 75 Hz Clock signal of
sub-code block (data Q).
This terminal outputs a 7.35 kHz clock signal of
foe
CLOCK
| o
sub-code block (data Q).
SET
No.
Symbo!
[a | xk | o |
so]
Zz
| o|
This terminal outputs a clock signal of 16.93 MHz.
These terminals output L and R signals.
UN eee
rs
(data Q),
[32.36 | oat | 0 [TeseterminaisoutputLandRsignats. |
ee
a
Se a
ee
|
This is the terminal for resetting the system, e.g.
| 29 |) (a2
|
ie
RST
iE bp lee ee
OFF, the circuit is reset by
[30
| pa
[es | mo | 1 | wciKensoaTsgnaarenputotermnat | [2%
| oae~ov0 |
[ 43~so | 07-00 | vO_| These terminals output RAM data signals (164).
[st | ramoe | 0 | Tristorminal outputs RAM OE control signals (16K).
This terminal receives a "HI" level muting signal.
| s2__|_ramwe | 0 _| This torminal outputs RAM WE control signals (16K). |
This terminal receives a tracking servo control
signal.
Ata "LOW" level... .the tracking servo is ON.
| © _| This terminal outputs data signals (CRL, STOP).
| © _| This terminal outputs a clock signal of 4.2336 MHz.
RAMAO~
:
R
RAMAI6
po | These terminals output RAM address signals (16K).
This is the spindle motor control output terminal.
The spindle motor operates at a "LOW" level.
For ground connection.
This is the track counter input terminal, but it is not
ITC
used in this unit. It is connected to a +5 V power
supply.
69, 73
| von
| 1
| To be connected to a +5 V power supply.
70
This is the test mode selection input terminal, but it is
72
This is the PLL extraction clock input terminal
(t=4.2336 MHz).
not used in this unit. It is connected to a +5 V power
supply.
| 74 | erm | 1 __ | This terminal receives EFM input signals (PLL).
| 75 | sAF | 1 _ | Thisterminal receives EFM input signals (DSL).
i
ee
eee
These are the clock transmission terminals:
Cc ek ae
This terminal receives a drop-out input signal.
Ata "HI" level ...... drop-out comes into effect.
This is the data output selection input terminal.
| 7m | we
| o | ited beac outputs a frequency comparison
Ata "HI" level ...... paraile! data output.
Ata "LOW" level... .serial data output.
Ed
een
Doh epe. 0 ase
cn ees
4 D
°
2
Ley
a
"When connected, this unit is at a "HI" level.
This is the de-emphasis control output terminal.
Ata "HI" level ...... the de-emphasis control is set
ON.
vo
Division
es | — |eondoomeson
vO
Division
Output-enable input
Read-wright control input
Eel Address input
wai
Power supply
| —
| Ground Connection
/O
D3~D7
Data ine out
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