Rear panel, 3 rear, Panel – TOA Electronics TA 1400 User Manual

Page 6: 3 rear panel

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3. Clip/limit indicator
This indicator signals when the amplifier output is clipping or limiting. It has two different indication
states:
If the clip limiter is engaged, it has a short time constant and it illuminates briefly. (See page

13

).

If the clip limiter is not engaged, it has an increased time constant and it illuminates for a longer
period.

4. Signal present indicator.
Illuminates at –40dB below full output signal.

5. On indicator
The two bottom green ”ON” LEDs indicate that the output circuits are receiving the correct rail
voltage.

6. Power switch
Turns mains power on or off.
(See page

9

and

12

)


7. Fan grill filters
A grille with foam filters is located on the front panel to prevent dust from entering the amplifier. The
grille is removable for easy cleaning of the filter by simply pulling them off. The foam filter should
always be used.

8. Carry/protection handle
Both handles can be used to carry the amplifier; they also act as protection for the front panel. In
fixed installations or where rack front covers are too shallow, they may be removed by unscrewing
the retaining bolts behind the front panel.

4.3 Rear Panel

Figure 2. Rear Panel

1. Output / Speaker connector
The Speakon connector from Neutrik® may be unfamiliar to some users. A full description is found in
the operation section. (See page

12

).


3. Clip limiter switch
Turns the clip limiter on (switch IN position) or off (switch OUT position). (See page

13

).


4. Input signal XLR
. Neutrik® Combojack features also ¼” TRS phone jacks. (Pin 2 is “hot”, see
page

10

).


5. Link Output. 3-pole screw terminal of Phoenix brand. Connected in parallel to the female XLR
input connector for linking the channel to another input.

6. Gain switch channel B. Three of the switches in the DIP-switch selects the maximum gain of
the channel to be either 20, 23, 26, 29, 32, 36, 39 or 41 dB. (See page

6

).


7. Link and Polarity reverse switch. Two of the switches in the DIP-switch are used for Link and
Bridge operation. (See page

6

).

Tannoy Limited

TA 1400 User Manual 11-06-02

5

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