1/2
44k
3/4
48k
5/6
88k
7/8
96k
DIGITAL
More than two LEDs do
not light at the same time.
(LEDは同時に2つ以上点灯しない。)
to JK3-CN302
Cable Holder
(ケーブルホルダー)
to DMSUB-CN800
In the usual case: Pull-Up via 10k ohms
In case of CN501 connection: Low
(通常時 PU10KΩ、CN501接続時 LOW)
to DMSUB-CN802
Not connected
TRANSCEIVER
TRANSCEIVER
VOLTAGE CONVERSION
(5V to 3.3V)
(5V -> 3V変換)
The following ports are used for INPUT only ;
Ports 2, 5 and 7
P81 through P84, and P67
TRANSCEIVER
TRANSCEIVER
DATA
SELECTOR
D-FF
CPU
(Port 2,5,7,P81-84,P67は入力専用)
In the usual case: Pull-Up via 10k ohms
In case of CN501 connection: Low
(通常時:PU10KΩ)
(CN501接続時:LOW)
INVERTER
■
i88X OVERALL CIRCUIT DIAGRAM 3/12 (DM 3/5)
to DMSUB-CN803
DM
003
INVERTER
RESET
Not installed
Not installed
Not installed
Not installed
MONITOR
SELECT
Fs(HOLD)
D-FF
(1FS is counted by the timer.)
Not installed
Not installed
Not installed
Not installed
(
セ
) : Ceramic Capacitor
(セラミックコンデンサー)
OR
INVERTER
INVERTER
RESET
AND
Voltage Conversion (5V to 3.3V)
(5V -> 3.3V 変換)
(MUTE遅延回路)
OR
INVERTER
INVERTER
SRC
PHOTO
COUPLER
DM
to JK1-CN102
004
OR
INVERTER
DIT
MULTIPLEXER
LINE RECEIVER
Voltage Conversion
(3.3V to 5V)
Voltage Conversion (3.3V to 5V)
(3.3V -> 5V 変換)
(3.3V -> 5V 変換)
INVERTER
Voltage Conversion (5V to 3.3V)
(5V -> 3.3V 変換)
OR
OR
OR
D-FF
INVERTER
ATSC2A
DIR2
Voltage Conversion (3.3V to 5V)
Voltage Conversion (3.3V to 5V)
PA_CLK for OUTPUT
PB_CLK for INPUT
PB_CLK for OUTPUT
(3.3V -> 5V 変換)
(3.3V -> 5V 変換)
(PA 出力用 CLK)
(PB 入力用CLK)
(PB 出力用CLK)
Note: See parts list for details of circuit board component parts.
注:シートの部品詳細はパーツリストを御参照ください。
OR
1SS355(VT332900)
DIODE
DM:D600-602
1
2
1 : ANODE
2 : CATHODE
D-FF
MUTE DELAY CIRCUIT
i88X
( F) : Metal Film Resistor
(金属皮膜抵抗)
(
セ
) : Ceramic Capacitor
(セラミックコンデンサー)
(
マ
) : Flame Proof Resistor
(マイラコンデンサ)
■
i88X OVERALL CIRCUIT DIAGRAM 4/12 (DM 4/5)
i88X
<P.3>
i88X
28CC1-8831036 2 3/5
28CC1-8831036 2 4/5
Not installed
(F)
Loop Filter