TOA A-1803 UK User manual

TOA A-1803 UK User manual
 zd TOA PA AMPLIFIER A—1803(UK)
MOESCRIPTIÓN
Equipped with Priority function, Chime function, and 2 Zone selector switches, the A-1803 PA
Amplifier of 30 W is designed to suit the followin PA system applications: Paging announcements,
intercommunications, BGM, and broadcasting in schools, offices, and shops. [t's power remote
control function, provided especially for use in con junction with the P=1 12 (optional), will turn
ON or OFF the P—1812's power.
BSPECIFICATIONS (+1) 0 dB =1V
Power Source 220 — 230 V AC, 50/60 Hz
24 V DC (M4 screw terminal)
Rated Output 30 W
Power /Current AC operation: 80 W (rated output), 37 W (EN60069),
Consumption 100 mA or less (when power switch is OFF)
24 V DC operation: 2.0 A (rated output), 1.0 A (EN60065)
Frequency Response 50 Hz — 20 kHz (£3 dB)
Distortion 2 % or less at 1 kHz, rated power
Input MIC 1: —60 dB(x1), 600 ©, electronically-balanced,
combined type of XLR—3-31 equivalent and phone jack, DIN socket (5 pins)
MIC 2 — 3: —60 dB(x1), 600 Q, electronically—balanced,
combined type of XLR-3-31 equivalent and phone jack
AUX 1 (MOH): —20 dB(+1), 10 k©@, unbalanced, RCA pin jack
AUX 2: —20 dB(x1), 10 kQ, unbalanced, RCA pin jack
AUX 3: —20 dB(x1), 10 kQ, unbalanced, combined type of XLR—3-31 and phone jack
TEL(*2): —20 dB(*1), 10 kQ?, electronically-balanced, M3 screw terminal
EMERGENCY: 0 dB(x1), 600 ©, unbalanced, M3 screw terminal
Output REC: 0 dBt*1), 600 Q, unbalanced, RCA pin jack
LINE 1, 2 (+3): 0 dB(x1), 600 Q, unbalanced, RCA pin jack
MOH: 0 dB(x1), 600 Q, transformer balanced, M3 screw terminal
SPEAKER SELECTOR: 2 zone, high impedance (100 V line/330 Q), individual selector switch,
M4 screw terminal
DIRECT SPEAKER OUT: High impedance (100 V line/330 Q), M4 screw terminal
Low impedance (4 — 16 Q), M4 screw terminal
(Both Low and High impedance terminals cannot be used at the same time.)
Phantom Power ON or OFF for each MIC1 — $3 with switch setting (+17 V DC)
S/N Ratio 100 dB or more (Master volume: min)
(Band Pass /6 dB or more (Master volume: max)
: 20 Hz — 20 kHz) | 60 dB or more (MIC 1 — MIC 3)
/6 dB or more (AUX 1 — AUX 3)
90 dB or more (TEL)
96 dB or more (EMERGENCY)
Tone Control Bass: +10 dB at 100 Hz, Treble: £10 dB at 10 kHz
Control Input TEL: No-voltage make contact input, open voltage: 24 V DC, short-circuit: 5 mA or less,
M3 screw terminal
EMERGENCY(+4): No-—voltage make contact input, open voltage: 24 V DC,
short—circuit: 10 mA or less, M3 screw terminal
Control Output Power remote: Open collector output, withstand voltage: 35 V DC,
control current: 50 mA or less, M3 screw terminal
Chime 1—-tone, 2—tone, or ascending 4—tone chime, or None selectable with switch setting,
activated at MIC 1's DIN or CONTROL TEL terminal.
Indicator 5 point LED output level meter, Power indicator LED, Zone indicator LED, Emergency LED,
TEL LED
Priority EMERGENCY: Overrides other inputs
TEL: Overrides other inputs except EMERGENCY”, ON/OFF selectable with switch setting
MIC 1: Overrides other inputs except EMERGENCY & TEL’,
ON/OFF selectable with switch setting
Operating Temperature | —10 °C to +40 °C (14 °F to 104 °F)
Finish Panel: ABS resin, black, hairline
Case: Steel plate, black
Dimensions 420 (W) X 107.7 (H) X 367 (D) mm (16.54 X 4.24 X 14.45”)
Weight 8.1 Ка (17.86 Ib)
Accessory Power cord -1, Terminal block cover 1, Terminal block cover mounting screw 2
Option Rack mounting bracket: MB—25B
Volume control cover: YA—920
Input transformer: 11—455A
[Note] Distance between barriers on the above screw terminals: M3 -- 7 mm (0.28”),
M4 -- 9 mm (0.35”)
(x2) Can be transformer—balanced with the addition of optional IT-455A input transformer.
(+3) LINE 1 and LINE 2 outputs can be interlocked with ZONE 1 and ZONE 2 speaker selectors, respectively.
(This function needs internal modification.)
(*4) Operation when activated can be selected from the following: Turning ON the unit's power (factory—preset) or OFF.
(The OFF function needs internal modification.)
Un A
O5E TOA Corporation DWG No: GA—02YB1-2
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TOA
BAPPEARANCE
PA AMPLIFIER
A—1803(UK)
©
220-230V-V_0.2A 50/60Hz
©
PA AMPLIFIER
mod 3
REMOTE OUT CONTROL
MOH QUT EMERGENCY TEL PAGING
— Ÿ Г 1
TOTAL IMPEDANCE 330Q
DIRECT ZONE TONE
Ter] “TUOV TOUV”
Equ
MIC 2
MUTE BY TEL SIG
MUTE BY MIC 1 SIG
PHANTOM
SW6 MIC 3
CHIME
5
4 TONE | OFF
W2 | sw3
OFF
mo
SW7 MIC 2
Fo
MIC 1 2 TONE
ON
OFF
1 TONE
OFF | ON
NONE | ON ON
MIC 1
MIC 1
SELECTOR
18.5 [0.73"]
Front View
367 [14.45”]
( INPUT
Rear View
420 [16.54]
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UNIT:mm
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Side View
TOA Corporation
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DWG
No: GA—02YC1-2
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