4
1
2
3
4
5
6
7
8
A
B
C
D
8
7
6
5
4
3
2
1
D
C
B
A
Title
Number
Revision
Size
A3
Date:
7-May-2002
Sheet of
File:
A:\PBL2000.SCH
Drawn By:
3
2
1
3
2
1
2
5
3
1
4
MUTE
CHIME
VOX
VOX
POWER AMP
O
U
T
P
U
T
B
O
A
R
D
100V
70V
25V
8ohm
COM
115V
230V
DC 24V OR 12V
+
_
G
+B
16V OR 10V
PHANTOM POWER
+V
O
N
O
F
F
MIC1 PRE
MIC2 PRE
AUX1 PRE
LINEOUT
OFF
ON
TONE
TEL PRE
V+
GND