Panasonic KX-TCA181RUT Service Manual page 27

Items
(F)* BBIC Clock Adjustment
(G)* Hookswitch Check with
DC Characteristics
(H)* DTMF Generator Check
(I)* Transmitted Power
Confirmation
(J) Modulation Check and
Adjustment
Check
Point
CLK 1. Input Command "rdeeprom 00 01 01", then you can confirm the current value.
2. Adjust the frequency of CLK executing the command "setfreq xx (where xx is
the value)" so that the reading of the frequency counter is 10.368000MHz ±
10Hz.
- 1. Connect CN1 (Telephone Socket) to Tel-simulator which is connected with
600 Ω.
2. Set line voltage to 48V and line current to 40mA at off-hook condition of
normal telephone.
3. Execute the command "hookoff"
4. Confirm that the line current is 40mA ± 5mA.
5. Execute the command "hookon".
6. Confirm that the line current is less than + 0.8mA.
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 -3dBm ± 2dBm.
5. Confirm that the low Group is -6dBm ± 2dBm.
- Remove the Antenna before starting step from 1 to 7.
1. Configure the DECT tester (CMD60) as follows;
<Setting>
• • • • Short A_1-GND and A_2-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) above.
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.)
KX-TCD815RUS / KX-TCD815RUT / KX-TCA181RUS / KX-TCA181RUT
Procedure
27
Check or
Replace Parts
IC2, R124,
R125, C153,
X1, C42, C43,
R40
CN1, L6, L7,
Q4, R23, R25,
Q5, R26, R28,
IC8, D3
IC8, R39, C41,
R49, C46, C47,
R42, R43, R44,
R45, R46, R47,
R48, C108,
C109, C40,
C36, Q8, D4
IC2, IC8, R124,
R125, C153,
C140, C141,
DA1, C142,
C143, C144, L3,
L4, R118, R119,
C135, R115,
R116, Q6,
C145, C147,
C149, C151,
C157, R123,
C158, C159,
C160, C161,
C162, C163,
C164, C136,
R117, R127,
C156, C154,
C155
IC2, IC8, R124,
R125, C153,
C140, C141,
DA1, C142,
C143, C144, L3,
L4, R118, R119,
C135, R115,
R116, Q6,
C145, C147,
C149, C151,
C157, R123,
C158, C159,
C160, C161,
C162, C163,
C164, C136,
R117, R127,
C156, C154,
C155