Panasonic KX-TGA403LAT, Service Manual

Page: 40 / 87

40
KX-TG4021LAT/KX-TG4022LAT/KX-TG4023LAT/KX-TGA403LAT
10.1.6.4. TEST RANGE Check
Circuit block which range is defective can be found by the following check.
CHART1: Setting of TX Power and RX Sensitivity in Range Confirmation TX TEST, RX TEST
Note:
(*1) Refer to Commands (P.50).
Item BU (Base Unit) Check HS (Handset) Check
Range Confirmation TX TEST
(TX Power check)
HS, BU setting
Checked unit: Low TX power (*1)
Regular unit: High TX power (*1)
1. Register Regular HS to BU (to be checked).
2. Set TX Power of the BU and the Regular HS
according to CHART1.
3. At distance of about 20m between HS and BU,
Link OK = TX Power of the BU is OK.
No Link = TX Power of the BU is NG.
1. Register HS (to be checked) to Regular BU.
2. Set TX Power of the HS and the Regular BU
according to CHART1.
3. At distance of about 20m between HS and BU,
Link OK = TX Power of the HS is OK.
No Link = TX Power of the HS is NG.
Range Confirmation RX TEST
(RX sensitivity check)
HS, BU setting
Checked unit: High TX power (*1)
Regular unit: Low TX power (*1)
1. Register Regular HS to BU (to be checked).
2. Set TX Power of the BU and the Regular HS
according to CHART1.
3. At distance of about 20m between HS and BU,
Link OK= RX Sensitivity of the BU is OK.
No Link = RX Sensitivity of the BU is NG.
1. Register HS (to be checked) to Regular BU.
2. Set TX Power of the Checking HS and the Reg-
ular BU according to CHART1.
3. At distance of about 20m between HS and BU,
Link OK= RX Sensitivity of the HS is OK.
No Link = RX Sensitivity of the HS is NG
BU (to be checked) Regular_HS
TX Power TX Power
BU (Base Unit) TX Power Check Low High
BU (Base Unit) RX Sensitivity Check High Low
HS (to be checked) Regular_BU
TX Power TX Power
HS (Handset) TX Power Check Low High
HS (Handset) RX Sensitivity Check High Low