Protech Audio 5117 - Manual (Page 2)

OUTPUT SECTION 1
OUTPUT SECTION 2
OUTPUT CONTROLS
SECTION 2
OUTPUT CONTROLS
SECTION 1
POWER ON
INDICATOR
OUTPUT SECTION 1 OUTPUT SECTION 2
POWER
SUPPLY
REAR VIEW
FRONT VIEW
INSTALLATION
The Toolbox Series Audio Distribution Amplifiers from
Protech Audio are designed to be mounted in a standard 19
inch wide EIA rack. Each of the four models requires 1.75
inches of vertical rack space. The steps for installing
the units are as follows;
Mount unit in rack, using four machine screws of sufficient
tensile strength to support unit properly.
Terminate all audio inputs and outputs, using double conductor
shielded cable, as shown on facing page. The diagram on the
facing page shows balanced line configurations. For unbal-
anced lines terminate line HI to DA HI, and line LO to DA SH
connection;
Page 2
SH
LO
HI
UNBALANCED INPUT
CONNECTION
TOOLBOX SERIES
PROTECH AUDIO ®
MODELS 5117, 5217, 5117T, 5217T
CONNECTOR & LAYOUT DRAW-
ING
The wall mount power transformer plugs into the rear power
connector marked 20VAC. Plug transformer jack into chassis
connector first. Then plug wall transformer into three prong AC
outlet.
OFF
ON
GROUND
LIFT
1 AMP
SLO-BLO
20 VAC
Make sure ground lift switch is in the on position.
Check front panel power indicator (green LED) for proper
illumination.
SH
LO
HI
BALANCED INPUT
CONNECTION
SH
LO
HI
UNBALANCED OUTPUT
CONNECTION (Electronic)
SH
LO
HI
BALANCED OUTPUT
CONNECTION
ALIGNMENT
All four models have been shipped from the factory adjusted
for unity gain. The input is adjustable from 0 to 20dB of gain.
THIS GAIN SHOULD BE USED BEFORE THE OUTPUT
GAIN.
Each output is individually adjustable from infinity (completely
off) to 20dB of gain. The input gain trimpot should be used to
adjust the output setting to the desired level. If the input gain
trimpot is adjusted to it's maximum clockwise position (maxi-
mum gain) and the output level is still not high enough, the
output gain trimpot may be used to add additional gain.
Adjusting the individual output gain trimpot will not effect the
any other output level setting.
LO HI
4 5 6 7 3 2 1
OUTPUTS INPUT
SH LO HI LO HI SH LO HI LO HI SH LO HI LO HI SH LO HI
LO HI
4 5 6 7 3 2 1
OUTPUTS INPUT
SH LO HI LO HI SH LO HI LO HI SH LO HI LO HI SH LO HI
SH
LO
HI
UNBALANCED OUTPUT
CONNECTION (Transformer)