Marantz PMD351, Service Manual

Page: 33 / 48

41
QR01 : HIN202ECB
HI N 202 E
TO P VIEW
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
C 1+
V +
C 1-
C 2 +
C 2 -
R 2IN
T 2 OUT
VC C
T 1 OUT
R 1IN
R 1OUT
T 1 IN
T 2 IN
R 2OUT
G ND
V-
VC C
+5 V
2
V +
16
T 1 OUT
T 2 OUT
T 1 IN
T 2 IN
T 1
T 2
11
10
14
7
+5 V
400k
Ω
+5 V
400k
Ω
R 1OUT
R 1IN
R 1
13 12
5k
Ω
R 2OUT R 2IN
R 2
8 9
5k
Ω
+1 0V T O -10V
V O LTA GE INV ER TE R
0.1
µ
F
6
V-
C 2+
C 2-
+
0.1
µ
F
4
5
+5V T O 10V
V O LTA GE INV ER TE R
C 1+
C 1-
+
0.1
µ
F
1
3
+
0.1
µ
F
+
G ND
15
Pin Desc ri pt io ns
PIN FUNCTION
V
CC
Power Supply Input 5V ±10%.
V+ Internally generated positive supply (+10V nominal).
V- Internally generated negative supply (-10V nominal).
GND Ground Lead. Connect to 0V.
C1+ External capacitor (+ terminal) is connected to this lead.
C1- External capacitor (- terminal) is connected to this lead.
C2+ External capacitor (+ terminal) is connected to this lead.
C2- External capacitor (- terminal) is connected to this lead.
T
IN
Transmitter Inputs. These leads accept TTL/CMOS levels. An internal 400kW pull-up resistor to V
CC
is connected to each lead.
T
OUT
Transmitter Outputs. These are RS-232 levels (nominally ±10V).
R
IN
Receiver Inputs. These inputs accept RS-232 input levels. An internal 5k W pull-down resistor to GND is connected to each input .
R
OUT
Receiver Outputs. These are TTL/CMOS levels.
EN, EN Receiver Enable Input. With EN = 5V (HIN213E EN=0V), the receiver outputs are placed in a high impedance state.
SD, SD Shutdown Input. With SD = 5V (HIN213E SD = 0V), the charge pump is disabled, the receiver outputs are in a high impedance
state (except R4 and R5 of HIN213E) and the transmitters are shut off.
NC No Connect. No connections are made to these leads.