20
21
Installation Manual
Model 2660
ARCHITECT
™
Troubleshooting continued
6. Speaker Buzzing or Crackling at high
volume:
a. Reduce any preamplifier/equalizer
low-frequency boost.
b. Turn off your chainsaw and ba
-
con-frying “Sounds of the Pacific
Northwest” CD.
7. There is no audio input signal, but
the Zone Status LEDs are still blue:
a. Check the signal-sense switches
on the rear panel. If they are not
engaged, the zone status LEDs will
stay on as long as the master trig-
ger is enabled.
b. The zone status LEDs stays on for
2 minutes (depending on music
volume) after the audio signal has
stopped. This delay helps prevent
prematurely muting during quiet
passages or song changes.
8. The unit is on but you cannot trigger
it off
• The unit will stay on if either the
12v master trigger is on, or jum-
pered on.
9. Is an in-wall volume control rated at
60 Watts (continuous) adequate?
• Just barely is the simple answer. Go
for one with a higher rating if you
want a reliable long-lasting system.
Though the Architect Model 2660
is rated at 65 Watts, it is a conser-
vative number, and it can put out
more power if only a few channels
are driven. In contrast to the con-
servative rating of the Architect
2660, the wall volume control may
be rated using favorable assump-
tions. Also make sure the volume
control power rating is continuous
not peak. The continuous rating is
about one-third of peak.
Block Diagram
Block Diagrams
10. The Architect Model 2660 looks like
this:
a. It has been installed upside down.
b. You are trying a new Yoga position.
EVEN+
EVEN-
ODD-
Bus A
Inputs
(SPDIF)
Master
12V
Trigger
Local
12V
Trigger
Local
Inputs
Power
Supply
Mono/
Stereo
Zone Level
Loop
Outputs
Bus B
Inputs
(Analog)
DAC
LightDrive
Anti-Clipping
Signal
Sense
Level
PFM
Subsonic
Zone Status
/Active
Signal Present
BUS A
BUS B
Signal Present
BUS A/B
Local
/BUS
Speaker
Outputs
Amplifiers
GND
+12V
ODD+
Protect
Power
