Output Level Adjustments; Speaker Volume Adjustment; Figure 22 Amplifier Card Adjustments For Speaker Adjustments - Simplex 4100 Installation Manual

SIMPLEX 4100 EWIS
INSTALLATION MANUAL

6. OUTPUT LEVEL ADJUSTMENTS

6.1 SPEAKER VOLUME ADJUSTMENT

Figure 22 Amplifier Card Adjustments for Speaker Adjustments

Document No.: 4100-M011
Speaker volume can be adjusted, using
the variable resistors located on the
Amplifier card.
To adjust the Speaker volume:-
(a) Locate
variable resister on the Amplifier
board 8225 or 8250. (See Figure
22
(b) Use a
variable resistor to required output
level.
• Turn
clockwise to increase volume.
• Turn the variable resistor anti-
clockwise to decrease volume.
March 1998
Page 67
TR1 Master Volume
screwdriver to adjust
the variable resistor
Issue 1.0