Smproaudio jackaroo, Jackaroo functions: testing cables, Testing cables with phantom power – SM Pro Audio Jackaroo: The-Test-Everything-Unit User Manual
Page 9: 48v phantom power
0
5K
J A C K A R O O
ATT
RCA
1/8” TRS
WARNING: DO NOT ENGAGE CABLE TEST WITH
POWER RUNNING THRU THE TEST
CABLES!
RCA
1/8” TRS
XLR
XLR
Cable
Test
Test
Tone
1 2 3 4 5 6 7 8
MIDI
MIDI
RJ45
RJ45
RJ11
RJ11
1/4” TRS
1/4” TRS
Attenuator
Attenuator
0
5K
ATT
RCA
1/8” TRS
RCA
1/8” TRS
XLR
XLR
1/4” TRS
1/4” TRS
2
Off
5
5V dc
Off
12V dc
9V ac
17V ac
Voltage selector
3
4
6
7
8
Monitor selector
Voltage out
Max 500mA
BNC
BNC
100hz 1k 10k
MONITOR SPEAKER
L-R
ATT PASS
TR
GND LIFT
L-R
ATT PASS
TR
LINK
Bananas:
48V PHANTOM POWER
S
E
N
D
R
E
C
E
IV
E
Continuity tester
With Beeper & LED
jackaroo functions: TESTING CABLES
IMPORTANT:
Before testing any cables, please make sure that no power
is running through them.
When testing a cable to determine the presence of 48V phantom power, do not
engage the CABLE TEST switch. Simply connect the XLR or TRS cable to the
The JACKAROO features a built-in cable tester that performs an automated
test routine. To test a cable, connect both sides of the cable to the appropriate
connectors on the JACKAROO and engage the CABLE TEST switch. The
The JACKAROO will sequentially test each of the connectors’ pins (up to 8),
SMPROAUDIO
JACKAROO
For example, if a properly functioning 3-pin XLR cable is connected to the XLR
SEND and RECEIVE jacks and CABLE TEST is engaged, both upper and lower
LEDs 1 will light up, followed by LED pair 2 and LED pair 3. If the cable was
incorrectly wired, the LEDs would not light, indicating a problem. If the cable had
a short between pins 1 and 2, for example, then LED pairs 1 and 2 would light
WARNING: DO NOT ENGAGE CABLE TEST WITH
POWER RUNNING THRU THE TEST
CABLES!
Cable
Test
1 2 3 4 5 6 7 8
48V PHANTOM POWER
and display the status of each pin on the correspondingly-numbered LEDs.
simultaneously, indicating that the signal was shorted across both pins.
TESTING CABLES with phantom power
JACKAROO; if phantom power is running through the cable, LEDs 2 and 3 will
light simultaneuosly, indicating the presence of phantom power.