Panasonic KX-TCD450 Series

Items Adjustment
Point
Procedure Check or
Replace Parts
(G)* DTMF Generator
Confirmation
- 1. Connect J1 (Telephone Socket) to DTMF tester.
2. Execute the command "hookoff" and "dtmf_up".
3. Confirm that the high frequency (1477.06Hz) group is -5dBm ~ -1dBm.
4. Execute the command "dtmf_lo".
5. Confirm that the low frequency (852.05Hz) group is -8dBm ~ -4dBm.
IC2,R32,C22,
R23,C90,C52,
C14,C13,Q6,
R22,R21,R19,
R20,C12,D2,
C1,C2,R77,
D3,R12,Q2,
R7,R8,R9,
R10,Q3
(H)* Transmitted Power
Confirmation
- Remove the Antenna before starting step from 1 to 4.
1. Configure the DECT tester (CMD60) as follows;
<Setting>
· Test mode: FP
· Traffic Channel: 5
· Traffic Slot: 4
· Mode: Loopback
· PMID: 0000
· Set the Cable Loss as 5dB.
2. Execute the command "testmode".
3. Initiate connection from DECT tester. (“set up connect”)
4. Confirm that the NTP value at ANT is 20dBm ~ 25dBm.
IC2,IC3,L1,
C43,C61,C68,
C69,C48,C72,
C66,C67,C65,
C57,C73,L3,
DA1,R66,R67,
C55,C56,R78,
R79,C54,C58,
C80,R38,C81,
C82,C83,C84,
C85,L8,C91,
C47
(I) Modulatoin Check and
Adjustment
ANT Follow steps 1 to 3 of (H) above.
4.Confirm that the B-Field Modulation is 340kHz/div ~ 402kHz/div using data
type Fig31.
5.Adjust the B-Field Modulation if required. (Execute the command "readmod"
and "wrtmod xx", where xx is the value.)
IC2,IC3,L1,
C43,C61,C68,
C69,C48,C72,
C66,C67,C65,
C57,C73,L3,
DA1,R66,R67,
C55,C56,R78,
R79,C54,C58,
C80,R38,C81,
C82,C83,C84,
C85,L8,C91
C47
(J) Frequency Offset
Confirmation
- Follow steps 1 to 3 of (H) above.
4.Confirm that the frequency offset is < ± 40kHz.
IC2,IC3,L1,
C43,C61,C68,
C69,C48,C72,
C66,C67,C65,
C57,C73,L3,
DA1,R66,R67,
C55,C56,R78,
R79,C54,C58,
C80,R38,C81,
C82,C83,C84,
C85,L8,C91,
C47
(K) Sensitivity Receiver
Confirmation
- Follow steps 1 to 3 of (H) above.
4.Set DECT tester power to -88dBm.
5.Confirm that the BER is < 1000ppm.
IC2,IC3,L1,
C43,C61,C68,
C69,C48,C72,
C66,C67,C65,
C57,C73,L3,
DA1,R66,R67,
C55,C56,R78,
R79,C54,C58,
C80,R38,C81,
C82,C83,C84,
C85,L8,C91,
C47
(L) Timing Confirmation - Follow steps 1 to 3 of (H) above.
4.Confirm that the Timing accuracy is < ± 5.0ppm.
IC2,IC3,L1,
C43,C61,C68,
C69,C48,C72,
C66,C67,C65,
C57,C73,L3,
DA1,R66,R67,
C55,C56,R78,
R79,C54,C58,
C80,R38,C81,
C82,C83,C84,
C85,L8,C91,
C47
45
KX-TCD450RUM / KX-A145RUM / KX-TCD450RUT / KX-A145RUT