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AE/LZB 119 1894 R1A BOARD SET-UP

Table 4 – Digital Potentiometers

AUDIO

SYSTEM BD.

POT NO.

ENHANCED AUDIO ENCLOSURE AUDIO CIRCUIT LOCATED IN /

ADJUSTS *

TYPICAL

SETTING

Auxiliary Input — Adjusts level of line 4 input audio from CIM line 4 output (from

radio). Affects audio levels applied to select recorder, and all speakers during Call

Director patch operations. Secondary line 4 adjustment used only if console is equipped

with a Call Director. Also see pot 18.

114

27 N/A (pot not used) 0

Line 1 Output — Adjusts level of line 1 output audio to CIM line 1 input.

Line 2 Output (adjustment never required)

Line 3 Output (adjustment never required)

Line 4 Output — Adjusts level of line 4 output audio to CIM line 4 input. Affects

audio level to patched radio during Call Director patch operations. Also see pot 1.

Select Recorder Output — Adjusts level of audio applied to the select recorder.

175

Select Audio Output — Adjusts level of audio at an internal Enhanced Audio

Enclosure reference point on Audio System Board. Affects select speaker, select

recorder, operator headset earphone and supervisors headset earphone audio levels.

190

Select Speaker Output — Adjusts level of audio applied to the select speaker. This pot

is not used as a volume control.

128

Unselect Speaker 1 Output — Adjusts level of audio applied to the first unselect

speaker (unselect speaker 1). This pot is not used as a volume control.

128

Unselect Speaker 2 Output — Adjusts level of audio applied to the second unselect

speaker (unselect speaker 2). This pot is not used as a volume control.

128

Unselect Speaker 3 Output — Adjusts level of audio applied to the third unselect

speaker (unselect speaker 3). This pot is not used as a volume control.

128

Unselect/Telephone Recorder Output — Adjusts level of audio applied to the

unselect recorder. This audio may be from an unselect source or from the Call Director's

telephone line.

175

Call Director Output — Adjusts level of audio to Call Director's telephone line (from

radio). Also see pot 18.

130

Supervisor Headset Earphone Output — Adjusts level of audio applied to the

supervisor headset earphones. This pot is not used as a volume control.

Operator Headset Earphone Output — Adjusts level of audio applied to the operator

headset earphones. This pot is not used as a volume control.

* See the Audio System Board’s maintenance manual for specific test points and additional alignment information.

**Numbers represent typical digital pot settings only. Factory settings are subject to change without notice as circuit improvements

occur. DO NOT ADJUST any digital pot from factory setting unless a full understanding of the consequences is known.

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