Pioneer PureVision PDP-4271HD Service Manual - Page 13
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5
2.3 CONNECTOR PIN DESCRIPTION
• Voltage at each connecter.
HNM Ass'y
[HN1] CN7851
pin
pin name
1
TXD_DLNA
2
RXD_DLNA
3
RST_DLNA
•
20
HNM Ass'y
[HN2] CN7901
pin
pin name
1
+5V
2
N.C.
3
GND
4
GND
HNM Ass'y
[HN3] CN7801
pin
pin name
1
+5V
2
D-
3
D+
4
GND
5
Sheild
HNM Ass'y
[HN7] CN7802*
pin
pin name
1
N.C.
2
+5.1V
3
N.C.
* CN7802 connector exists only in AWV2311-B.
For AWV2311-A, a wire is directly soldered to 4th pin of IC7803
5
6
description
I/O
I
UART signal with Main ass'y, Main => HNM
O
UART signal with Main ass'y, HNM => Main
I
Reset signal for HNM ass'y, Active low
description
I/O
+5V power supply
I
-
No use in this model
-
-
description
I/O
O +5V for USB bus-power
I/O USB differential signal minus
I/O USB differential signal plus
-
-
description
I/O
-
No connection in this ass'y
I
+5V for USB bus-power
-
PRO-940HD
6
7
MTB MAIN Ass'y
voltage (V)
+3.3 / 0
+3.3 / 0
+3.3 / 0
MTB MAIN Ass'y
voltage (V)
+5.0
-
0
0
voltage (V)
+5.0
+3.3 / 0
+3.3 / 0
0
0
voltage (V)
-
+5.1
-
.
7
8
A
[M14] CN4017
pin
1
2
3
•
20
[M15] CN4016
pin
B
1
2
3
4
USB cable
C
MTB MAIN Ass'y
CN4011
pin
1
2
3
D
13
8