Panasonic KX-TG4221N Service Manual page 39

10.1.6.3. Check Table for RF part
No. Item
1 Link Confirmation Normal
HS, BU Mode [Normal Mode]
2 '
X tal Frequency confirmation
HS, BU Mode: [Adjustment]
3 TX confirmation
Regular HS (BU) Mode:
[Test RX Mode]
BU (HS) Mode:
[Test TX_Burst Mode]
4 RX confirmation
Regular HS (BU) Mode:
[Test TX_Burst Mode]
BU (HS) Mode:
[Test RX Mode]
5 Range Confirmation Normal
HS, BU Mode: [Normal Mode]
Note:
(*1) Adjustment Standard (Base Unit) (P.51)
(*2) Adjustment Standard (Handset) (P.52)
KX-TG4221N/KX-TG4222N/KX-TG4223N/KX-TG313SK/KX-TG4224N/KX-TG4225N/KX-TGA421N
BU (Base Unit) Check
1. Register Regular HS to BU (to be
checked).
2. Press [Talk] key of the Regular HS to
establish link.
'
Check X tal Frequency.
(13.824000 MHz ±100 Hz)
1. Place Regular HS 15 cm away from a
checked BU.
2. Confirm "TXDATA" waveform of BU (*1)
and "RXDATA" waveform of Regular HS by
Digital Oscilloscope.
1. Place Regular HS 15 cm away from a
checked BU.
2. Confirm "RXDATA" waveform of BU (*1)
and "TXDATA" waveform of Regular HS by
Digital Oscilloscope.
1. Register Regular HS to BU (to be
checked).
2. Press [Talk] key of the Regular HS to
establish link.
3. Compare the range of the BU (being
checked) with that of the Regular BU.
39
HS (Handset) Check
1. Register HS (to be checked) to Regular
BU.
2. Press [Talk] key of the HS to establish link.
'
Check X tal Frequency.
(10.368000 MHz ±100 Hz)
1. Place Regular BU 15 cm away from a
checked HS.
2. Confirm "TXDATA" waveform of HS (*2)
and "RXDATA" waveform of Regular BU by
Digital Oscilloscope.
1. Place Regular BU 15 cm away from a
checked HS.
2. Confirm "RXDATA" waveform of HS (*2)
and "TXDATA" waveform of Regular BU by
Digital Oscilloscope.
1. Register HS (to be checked) to Regular
BU.
2. Press [Talk] key of the HS to establish link.
3. Compare the range of the HS (being
checked) with that of the Regular HS.