Checkpoint Systems Inc. CP1900 Manual De Usuario
Rev. 00
TECHNICAL DOCUMENTATION
INSTALLATION & TUNE-UP PROCEDURE
March 9, 2000
COUNTERPOINT IX
FCC ID: D04CP1900
_____________________________________________________________________________________________________________________________________________
CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
DWG. 476736
PAGE 29
If the C/PT IX phantoms, check the sensitivity as follows:
Scope Settings:
Ch1:
Voltage:
100mv/div
Triggered on Ch1
Time:
200us/div
Test point: LISTEN (TP4)
Maximized Intensity
Ensure the peak amplitude of the AC signal without the tag at LISTEN (TP4) is below 0.5Vp-p as
shown in A1.4.
shown in A1.4.
A1.4 AC Signal at LISTEN (TP4)
Readjust SW1 and SW2 if the signal at LISTEN (TP4) is over 0.5Vp-p.
A.2
Detailed Tuning in V Mode
Follow step A.1 to fine tune SW1 and SW2 without checking sensitivity.
A.3
Detailed Tuning in VI Mode
Follow step A.1 to fine tune the C/PT IX in VI mode for deactivation. If phantoms occur, reduce
the sensitivity by adjusting GAIN (R4) counterclockwise all the way.
the sensitivity by adjusting GAIN (R4) counterclockwise all the way.