Panasonic KX-TG8107UA Service Manual page 42

KX-TG8107UA/KX-TG8108UA/KX-TGA810UA
Items
(H)* DTMF Generator Check
(I)* Transmitted Power Con-
firmation
(J) Modulation Check and
Adjustment
(K) Frequency Offset Check
(L) Frequency Dirft Confir-
mation
(M) Sensitivity Receiver
Confirmation
Check
Point
1. Connect CN1 (Telephone Socket) to DTMF tester. (Road=600 Ω)
-
2. Link Handset and push dial key.
3. Confirm DTMF character.
4. Confirm that the high Group is -3 ± 2dBm.
5. Confirm that the low Group is -6 ± 2dBm.
- Remove the Antenna before starting step from 1 to 7.
1. Configure the DECT tester (CMD60) as follows;
<Setting>
• Short A_1 and GND.
• Test mode: FP
• Traffic Carrier: 5
• Traffic Slot: 4
• Mode: Loopback
• PMID: 00000
• RF LEVEL = -70dBm.
2. Execute the command "testmode".
3. Execute the command "sendchar dmv 2 2".
4. Check that "Signalling Status" has been set to "Locked", then press "ACCEPT
RFPI".
5. Initiate connection from Dect tester ("set up connect")
6. Execute the command "ANT1".
7. Confirm that the NTP value at ANT is 20dBm ~ 25dBm.
- Follow steps 1 to 6 of (I).
7.Confirm that the B-Field Modulation is -350 ~ -400/+320 ~ +370kHz/div using
data type Fig31.
8.Adjust the B-Field Modulation if required. (Execute the command "readmod"
and "wrtmod xx", where xx is the value.)
- Follow steps 1 to 6 of (I).
7.Confirm that the frequency offset is < ± 45kHz.
- Follow steps 1 to 6 of (I).
7.Confirm that the frequency drift is < ± 30kHz/ms.
- Follow steps 1 to 6 of (I).
7.Set DECT tester power to -90dBm.
8.Confirm that the BER is < 1000ppm.
Procedure
42
Check or
Replace Parts
IC7, R67, IC6,
R116, C141,
R29, C22, C23,
R18~R24,
C14~C17, Q5,
D4
IC7, IC10, L7,
L3, L4, L6,
C117, C118,
C119, C120,
C124, C125,
R106, R109,
DA1, C102,
R102, R103,
Q10, C110,
C112, R111,
C126, C127,
R112
IC7, IC10, L7,
L3, L4, L6,
C117, C118,
C119, C120,
C124, C125,
R106, R109,
DA1, C102,
R102, R103,
Q10, C110,
C112, R111,
C126, C127,
R112
IC7, IC10, L7,
L3, L4, L6,
C117, C118,
C119, C120,
C124, C125,
R106, R109,
DA1, C102,
R102, R103,
Q10, C110,
C112, R111,
C126, C127,
R112
IC7, IC10, L7,
L3, L4, L6,
C117, C118,
C119, C120,
C124, C125,
R106, R109,
DA1, C102,
R102, R103,
Q10, C110,
C112, R111,
C126, C127,
R112
IC7, IC10, L7,
L3, L4, L6,
C117, C118,
C119, C120,
C124, C125,
R106, R109,
DA1, C102,
R102, R103,
Q10, C110,
C112, R111,
C126, C127,
R112