Dolby Laboratories CP650, Руководство по установке

Страница: 30 / 184

Dolby
®
Model CP650 Installation Manual Installation
2-6
Table 2–1 Solar Cell Preamp Board Connectors
J2 Pin Number Signal
1 Right (or Left) +
2 Signal Ground
3 Right (or Left) –
4 Left (or Right) +
5 Signal Ground
6 Left (or Right) –
J1 Pin Number Power from CP650
7 +15 V
8 –15 V
9 Signal Ground
There must be a connection between the ground pins at the Cat. No. 655 solar cell
circuit board and the audio common in the CP650. This connection must
not use the
shield of the optical input cable, since doing so may impose RF energy on the CP650
ground system.
Pin numbers 6 and 9 of each 9-pin D-connector (“Projector”) on the CP650 allow
these connections to be made. The wire that connects either of these pins to the
Cat. No. 655 audio ground should pass inside the same shield as the optical input
cables and not connect with the shield at any point.
Gnd
1
Gnd
Gnd
Gnd
Gnd
3
2
4
5
1
2
3
6
Out 2–
Out 1–
Out 2+
Out 1+
*
*
*
+
+
–
–
1
2
3
4
5
6
7
8
9
Cat.No.655 Wiring Diagram
Ground wire on pin 5, OPTIONAL
Ground wire on pin 2, REQUIRED
+Vdd
Vdd
–
Shield
Shield
Shield
CP650
Optical In
Figure 2–3 Cell Preamp Wiring Using Two 3-Conductor Shielded (Screened) Cables
Gnd
1
Gnd
Gnd
Gnd
Gnd
3
2
4
5
1
2
3
6
Out 2–
Out 1–
Out 2+
Out 1+
J2
J1
*
*
*
+
+
–
–
1
2
3
4
5
6
7
8
9
Cat.No.655 Wiring Diagram
Ground wire on pin 5, OPTIONAL
Ground wire on pin 2, REQUIRED
+Vdd
Vdd
–
Shield
CP650
Optical In
Shield
Figure 2–4 Cell Preamp Wiring Using One 5- or 6-Conductor Shielded (Screened) Cable