Dolby Laboratories DA20, Руководство по установке

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2-11
Installation
The changes below move format 05 (Dolby Stereo SR) to the format 03 button, freeing up
the aux button for the Dolby Digital input.
1. Set the SRA5 CP selector switch to the “55” position.
2. Set the SRA5 Mode switch located behind the front access panel to “Remote.”
3. Use a shielded pair such as Belden #8451 for the audio and an 18-24 gauge single
conductor wire for the control line. Connect the shields at the SRA5 end only.
Perform the following wiring steps (refer to Figure 2.5):
11
10
12
CP55
SRA5
TB2 TB1
LT
E
RT
LT
E
RT
7
8
9
TB1
L
E
R
7
8
9
out
out
15
9
1
J14
8
TB1 TB2
ID7
4
CAT. NO. 321
ID1
{
See
Figure
2.6
Figure 2.5 SRA5 to CP55 Connections (Alternative Method)
a. Connect the Lt and Rt inputs on the SRA5 to the Optical Preamp Outputs on
TB2 of the CP55.
b. Connect the ID7 terminal on the SRA5 to the ID1 terminal on TB1 of the
Cat.No.321 on the back of the CP55.
c. Connect the Lout and Rout outputs from the SRA5 to the pins of edge
connector J14 on the backplane of the CP55, (see Figure 2.6) by carefully
soldering the wire for the Left channel to pin 15 and Right channel to pin 1.
Solder the ground to pin 9.