The Preamplifier Tuner's back panel is organized into groups of inputs and outputs as shown above.
1. AC Input Receptacle -
For attaching the supplied AC power cord to the Preamplifier Tuner. The
serial number of your unit is located below the AC input receptacle.
AC line fuse rating - .5A 250V
2. RS-232 -
RS-232 Two Way communication allows enhanced system control and BKcSuite inter-
face.
3. IR output -
IR signals received by your preamplifier's Infrared Data/Signal input pin are repeated
out this IR connector 1/8” (3.5mm) mono.
4. Control I/O -
Allows connections to a zone keypad/IR sensor via a 5 pin plug-in Phoenix connector. Also
supplies a control voltage for an amplifier.
+12V
- +12VDC Power to Keypad or IR Sensor
Ground
- Common Ground
RS-232 Xmit
- RS-232 One Way Transmit Out
Data In
- Infrared Data Input
CTRL Out
- 12VDC Programmable Control Out
5. FULL RANGE Balanced (XLR) output -
Variable preamp outputs for driving an external power
amplifier.
Pin 1 - ground
Pin 2 - POS +
Pin 3 - NEG -
6. MONO L+R and SUB PREAMP (RCA) outputs -
Variable level outputs for driving external power
amplifiers or powered speakers. Mono is the summation of the L+R full range audio signals. It is then
processed by a low-pass filter to reduce audio above 80 Hz to source the SUB output.
7. HIGH PASS (RCA) output -
Variable preamp outputs for driving external power amplifiers or pow-
ered speakers. These outputs have been processed through a high pass filter to reduce audio below
80 Hz. Use these outputs for small speakers or in a subwoofer / satellite system. Note: these outputs
are identical to the full range outputs with the addition of an 80 Hz 12 dB / Octave high-pass filter.
8. FULL RANGE (RCA) output -
Variable preamp outputs for driving external power amplifiers.
9. TAPE inputs and output -
Line level input and fixed output for use with an audio recorder. Tape
Output supplies a return loop for the source input selected.
10. Source line inputs -
Left and right connections from your audio sources.
Red RCA jacks
= Right analog audio
White RCA jacks = Left analog audio
11. Antenna inputs
- Connections for the AM and FM antennas.
5
BACK PANEL DESCRIPTION
V 1
V 2
T V
S O U R C E I N P U T S
D V D
C D
I N P U T
O U T P U T
TA P E
P R E A M P O U T P U T S
F U L L
R A N G E
H I G H
PA S S
S U B
M O N O
L + R
A u d i o / V i d e o S y s t e m s H a n d - M a d e i n t h e U . S . A .
B K
&
S
B
IMPLY ETTER!
R I S K O F E L E C T R I C S H O C K
D O N O T O P E N
C A U T I O N
A N T E N N A
A M
F M
VOLTAGE
RS-232
IR
OUTPUT
BALANCED OUTPUT
FULL RANGE
LEFT
RIGHT
S E R I A L #
GROUND
RS232
TRANSMIT
IR
D
ATA
IN
P
U
T
CONTROL
OUT
+12V
A C L I N E
200 mA Max
Current @ 12V
1
2
3
4
5
6
7
8
9
10
11
2
1
3
PIN1(GND)
PIN 1 (GND)
PIN 3 (-)
PIN 3 (-)
PIN 2 (+)
PIN 2 (+)
Balanced Interconnect Cable
1
2
3
PIN1(GND)
PIN 1 (GND)
PIN 3 (-)
PIN 3 (-)
PIN 2 (+)
PIN 2 (+)
Preamplifier Balanced Output Connector
