powersoft LiteMod 4HC User Manual

Evaluation Board - KTP00477 | 23
When bypassing a channel of evaluation board, the signal goes directly from XLR input connectors to DIL 34 poles output
connectors. In this way, evaluation board can be transformed in a passive XLR input board, routing audio signals straight from
the input XLRs to the amplier’s input terminals (polarity reverse and bridge switches are disabled too).
The following position of switches “Bypass_0” “Bypass_01” “Bypass_2” “Bypass_3” “Bypass_4” should be set:
14 : 9.Bypass entire EVB
Channel to
be bypassed
BYPASS_0 BYPASS_1-4
1 2 3 4 5 6 7 8 1 2 3 4
CH1 OFF OFF - - - - - - ON - - -
CH2 - - OFF OFF - - - - - ON - -
CH3 - - - - OFF OFF - - - - ON -
CH4 - - - - - - OFF OFF - - - ON
Channel to
be activated
BYPASS_0 BYPASS_1-4
1 2 3 4 5 6 7 8 1 2 3 4
CH1 ON ON - - - - - - OFF - - -
CH2 - - ON ON - - - - - OFF - -
CH3 - - - - ON ON - - - - OFF -
CH4 - - - - - - ON ON - - - OFF
In order to activate the internal limiters of demo board, the above described switches must be set in the opposite position as
follow.
When EVB bypass is active, the following features are still available: TEMP LED BAR, MUTE, energy save (+ energy save mode
selection).
Evaluation board is provided of a signal detection circuit having a wake up threshold of about -59dBV. If Energy save Active, after
10sec of a lack of signal detection, it goes into “shut down / auto mute” state. Depending on the status of ESMODE switch Its
behavior may change as follow:
If ESMODE ON: When Energy Save Mode is enabled a Shut down of Power Supply of the module (connected to the related
output connector).
If ESMODE OFF: Energy Save status leads to a mute of channels of related connector (disable output stage PWM generator
power supply is not shut down).
14 : 7.Energy Save
A LEDs light bar indicates 4 different thresholds as listed in the table below. Temperatures indicated on the scale must be
considered only as an indication and are strongly dependent from the module used along with evaluation board.
14 : 8.TempMon LED bar
LED
Turn on/off
Threshold (V)
25˚ 2.5
50˚ 1.65
75˚ 0.93
85˚ 0.826

powersoft LiteMod 4HC Specifications

General

Brand	powersoft
Model	LiteMod 4HC
Category	Control Unit
Language	English