©2004 ELAN Home Systems. All Rights Reserved. 04/04.
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ELAN HOME SYSTEMS
MUSIC AND COMMUNICATIONS
DISTRIBUTION CENTER
MAC24
INSTALLATION MANUAL
MAC24 Audio Distribution Amplifier Reference Voltages
Between MAC24 Pins:
Voltage Should Read:
+12V (+) and SHLD/GND (G)
-12V (-) and SHLD/GND (G)
PHONE OUT TIP (to) and PHONE OUT RING (ro)
VOL CONT O (O+) and VOL CONT
DB1+(d1) or DB2+ (d2)
and DOORBELL COMMON (C)
LATCH+ (l+) and LATCH- (l-)
MIC+ (m+) and MIC- (m-)
(s+) AND SPEAKER- (s-)
IR+12V (I+) and GND (g)
MUTE SW+ (S) and SHLD/GND (G)
+12 VDC
-12 VDC
+24 VDC
12 VDC between O+ and O-
only when Page/DB is active
O+ will always read +12 VDC
to any Ground except O-
+12 VDC
+12 VDC only when #,3,0 is pressed and held
+5 VDC
0 VDC
+12 VDC
+4.75 VDC
No music
(doorchime & page ok)
1. Confirm that the audio source and the RCA
patch cord between audio source & the
Music Input Wallplate are good.
2. Be sure that Volume Controls are turned up
and that the Music Switch, if being used, is
on (LED=Green).
3. Confirm that the Input Level Adjustment pot
on the Music Input Wallplate is turned up.
4. Check for +/- 12 VDC present at the Music
Input Wallplate and verify L & R audio wires
are connected properly. If not, check the
fuses with a meter. Replace with 4A slow
blow fuses only.
5. See Mute Switch Jumper Configuration dia-
gram and confirm that the jumper is in the
proper position.
6. Cycle power to the ADA by going to the
main electrical circuit panel and turning the
appropriate breaker off, waiting 30 sec-
onds, then turning back on.
If, after trying all of the above, the problem
persists, call ELAN Technical Support
FROM
THE JOB SITE
for assistance.
Volume
Level
Adjustment
• Music Switch is turned off.
• Mute Switch Configuration
jumper inside MAC24 is in
the wrong position.
• Mis-wired Music Input
Wallplate.
• Fuses are blown.
Symptom
Possible Cause
Possible Solution
Summary of Contents for MAC24
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