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 -3dBm ± 2dBm.
4. Execute the command "dtmf_lo".
5. Confirm that the lowfrequency (852.05HZ) group is -6dBm ± 2dBm.
IC2,R32,C22,
R23,C80,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
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,C78,C75,
C69,C48,C72,
C66,C67,C76,
C57,C73,L3,
DA1,R66,R67,
C55,C56,R78,
R79,C54,C58,
C86,R38
(
I
)
Modulatoin Check and
Adjustment
ANT
Followsteps 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,C78,C75,
C69,C48,C72,
C66,C67,C76,
C57,C73,L3,
DA1,R66,R67,
C55,C56,R78,
R79,C54,C58,
C86,R38
(
J
)
Frequency Offset
Confirmation
-
Followsteps 1 to 3 of
(H)
above.
4. Confirm that the frequency offset is < ± 40kHz.
IC2,IC3,L1,
C43,C78,C75,
C69,C48,C72,
C66,C67,C76,
C57,C73,L3,
DA1,R66,R67,
C55,C56,R78,
R79,C54,C58,
C86,R38
(
K
)
Sensitivity Receiver
Confirmation
-
Followsteps 1 to 3 of
(H)
above.
4. Set DECT tester power to -88dBm.
5. Confirm that the BER is < 1000ppm.
IC2,IC3,L1,
C43,C78,C75,
C69,C48,C72,
C66,C67,C76,
C57,C73,L3,
DA1,R66,R67,
C55,C56,R78,
R79,C54,C58,
C86,R38
(
L
)
Timing Confirmation
-
Followsteps 1 to 3 of
(H)
above.
4. Confirm that the Timing accuracy is < ± 5.0ppm.
IC2,IC3,L1,
C43,C78,C75,
C69,C48,C72,
C66,C67,C76,
C57,C73,L3,
DA1,R66,R67,
C55,C56,R78,
R79,C54,C58,
C86,R38
(
M
)*
RSSI Level
Confirmation
-
Followsteps 1 to 3 of
(H)
above.
4. Set DECT tester power to -88dBm.
5. Execute the command "readrssi".
6. Confirm: 29 < returned value < 3E (hex)
IC2,IC3,L1,
C43,C78,C75,
C69,C48,C72,
C66,C67,C76,
C57,C73,L3,
DA1,R66,R67,
C55,C56,R78,
R79,C54,C58,
C86,R38
38
KX-TCD400RUB / KX-TCD400RUC / KX-TCD400RUF / KX-A140RUB / KX-A140RUC / KX-A140RUF
