Panasonic KX-TG5431BXS, Service Manual

Page: 46 / 130

13.7.3. Check Table for RF part
No. Item BU (Base Unit) Check HS (HandSet) Check
1 Link Confirmation Normal
HS, BU Mode [Normal Mode]
1. Register Regular HS to BU (to be checked).
2. Press [Talk] key ofthe Regular HS to
establish link.
1. Register HS (to be checked) to Regular BU.
2. Press [Talk] key ofthe HS to establish link.
2 Control signal confirmation
HS, BU Mode: [Test Burst Mode] (*1)
Check DSP interface. (*2) Check DSP interface. (*2)
3 X´tal Frequency confirmation (*7)
HS, BU Mode: [Adjustment] (*3)
Check X´tal Frequency.
(13.824000MHz ±270Hz) Check X´tal Frequency.
(13.824000MHz ±100Hz)
4 TX Power confirmation
Regular HS, BU Mode:
[RX-CW Mode.] (*4)
HS, BU (to be checked) Mode:
[Test Burst Mode.] (*1)
1. Place the Regular HS about 15cm away
from the BU.
2. Confirm that RSSI of the Regular HS is
approximately 2V by Oscilloscope. (*5)
1. Place the HS about 15cm away from the
Regular BU.
2. Confirm that RSSI of the Regular BU is
approximately 2V by Oscilloscope. (*6)
5 RX Sensitivity confirmation
Regular HS, BU Mode:
[Test Burst Mode.] (*1)
HS, BU (to be checked) Mode:
[RX-CW Mode.] (*4)
1. Place the Regular HS about 15cm away
from the BU.
2. Confirm that RSSI of the BU is
approximately 2V by Oscilloscope. (*5)
1. Place the HS about 15cm away from the
Regular BU.
2. Confirm that RSSI of the HS is
approximately 2V by Oscilloscope. (*6)
6 Range Confirmation Normal
HS, BU Mode: [Normal Mode]
1. Register Regular HS to BU (to be checked).
2. Press [Talk] key ofthe Regular HS to
establish link.
3. Compare the range ofthe BU (being
checked) with that ofthe Regular BU.
1. Register HS (to be checked) to Regular BU.
2. Press [Talk] key ofthe HS to establish link.
3. Compare the range ofthe HS (being
checked) with that ofthe Regular HS.
Note:
(*1)(*3)(*4) ADJUSTMENT AND TEST MODE (P.51)
(*2) RF-DSP Interface Signal Wave Form (P.48)
(*5) Base Unit Reference Drawing (P.60)
(*6) Handset Reference Drawing (P.61)
(*7) X501 (Base Unit), X201 (Handset) Check (P.59)
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KX-TG5431BXS / KX-TGA542BXS