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  3. LT-6068 QAA-5415-70V Amplifier

Mircom LT-6068 QAA-5415-70V Amplifier Operating instructions

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LT-6068 Rev. 0
April 2014
QAA-5415-70 and QAA-5415-25
Quad 15 Watt Amplifiers
Backup Amplifier Instructions
Back
up Amplifier
The QAA-5415-70 and QAA-5414-25 Amplifiers may be used as a backup amplifier. One backup is required per system or
node. To use this amplifier as a backup, use the jumpers that are provided on the pins of U13 and U14. Connect pins 1 and
2 of U14 and pins 3 and 4 of U14. Also connect pins 1 and 2 of U13 and pins 3 and 4 of U13. Refer to figure below.
Note: BACKUP AMPLIFIER IS ONLY AVAILABLE ON THE FIRST ZONE A.
HEAT SINKHEAT SINK
XMFR
XMFR
XMFR
XMFR
RELAYS
81
QAA-5415-70 and
QAA-5415-25 AMPLIFIERS
MOTHERBOARD
CONNECTOR
Jumper pins 1 to
2 and 3 to 4 of
U13 and also pins
1 to 2 and 3 to 4
of U14 if using
this amplifer
as a backup.
SPEAKER TERMINALS
U13
U13
U14
U14
i
/