Owner's Manual

4
This is the mains input for the HVA1/HVA4, The power cord supplied is determined by the
Country of operation.
AC Input
CH A thru D +: Balanced signal input + or unbalanced signal input
CH A thru GND: Signal GND
CH A Thru D: Balanced signal input - or unbalanced signal not connect
Fail: Failure Status output:
This output is low (0V) if either the unit is disabled or in Protect mode
This output is normally high (+5V)
DIS: The amplifier’s input is disabled
The disable pin is normally (+5V). When this pin is grounded the amplifier is disabled and all of
the Protection lights will light.
Make sure to disable the unit or power in down, when connecting or disconnecting the speaker loads.
PRI: Input Priority Control PIN
The Priorty control pin is normally (+5V). When PRI pin is grounded, The TEST input has priority,
at this time the Level pot knobs will change from GREEN to RED.
GND: Signal GND and control GND.
TEST: Input Priority test/alarm signal
When the Priority is connected to gnd, the Test/alarm signal will override all input signals and
will be present on all the outputs
Euroblock input
1
2
REAR PANEL
1
2
4
5
Use only with a 250V fuse
Use only with a 250V fuse
Use only with a 250V fuse
SERIAL
MODEL
CLASS 2 WIRING
AC INPUT:
110-120V~50/60Hz
220-240V~50/60Hz
MADE IN CHINA
CH A
CH B CH C
CHD
CH D
Fail
Fa i l
DI S
PR I GND
GND
Te s t
CHA CHB CHC CHD
3
Use only with a 250V fuse
MADE IN CHINA
AC INPUT:
110-120V~50/60Hz
220-240V~50/60Hz
SERIAL
MODEL
CLASS 2 WIRING
CHB
CHA
GG
CHA
CHB
Fail
DIS
PRI
GND GND
Test