Panasonic KX-TCD346UAS / KX-TCD346UAT / KX-TCA132UAS / KX-TCA132UAT / KX-TCA130UAS / KX-TCA130UAT Service Manual ▷ View online
7.4.
Check Handset Transmission
Cross Reference:
SIGNAL ROUTE (P.51)
7.5.
Check Handset Reception
Cross Reference:
HOW TO CHECK THE SPEAKER OR RECEIVER (P.43).
SIGNAL ROUTE (P.51)
7.6.
Check Caller ID
Cross Reference:
SIGNAL ROUTE (P.51)
7.7.
Check Base Speakerphone Transmission
Cross Reference:
SIGNAL ROUTE (P.51)
7.8.
Check Base Speakerphone Reception
Cross Reference:
SIGNAL ROUTE (P.51)
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KX-TCD346UAS / KX-TCD346UAT / KX-TCA132UAS / KX-TCA132UAT / KX-TCA130UAS / KX-TCA130UAT
7.9.
Bell Reception
7.9.1.
Base Unit
7.9.2.
Handset
Cross Reference:
Telephone Line Interface (P.47)
Check Link (P.21)
HOW TO CHECK THE SPEAKER OR RECEIVER (P.43)
7.10. Check TAM Operation
Cross Reference:
Power Supply Circuit (P.46)
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KX-TCD346UAS / KX-TCD346UAT / KX-TCA132UAS / KX-TCA132UAT / KX-TCA130UAS / KX-TCA130UAT
8 TROUBLESHOOTING BY SYMPTOM (BASE UNIT AND
CHARGER UNIT)
If your unit has belowsymptoms, followthe instructions in remedy column. Remedies depend on whether you have DECT tester
(*1) or not.
(*1) or not.
Note:
(*1): A general repair is possible even if you don’t have the DECT tester because it is for confirming the levels, such as Acoustic
level in detail.
level in detail.
(*2): Refer to Check Point (Base Unit) (P.27)
8.1.
Check Point (Base Unit)
Please followthe items belowwhen BBIC or EEPROM or FLASH ROM is replaced.
Note:
After the measuring, sock up the solder of TP.
*: PC Setting (P.39) is required beforehand.
The connections of adjustment equipments are as shown in Adjustment Standard (Base Unit) (P.33).
Items
Check
Point
Procedure
Check or
Replace Parts
(A)
2.5V Supply
Confirmation
VDD4
1. Confirm that the voltage between test point VDD4 and GND is 2.5V ± 0.2V.
D1, IC11, C4,
C7, R10, R11,
C30, C26, C28,
L12
(B)
3.0V Supply
Confirmation
VDD3
1. Confirm that the voltage between test point VDD3 and GND is 3.0V ± 0.2V.
C2, IC1, C3,
C8, Q2, R5,
C10, R18, R19,
C11
(C)*
1.8V Supply
Confirmation
VDD5
1. Confirm that the voltage between test point VDD5 and GND is 1.8V ± 0.1V.
Q3, R6, C25,
D7, D8
(D)*
BBIC Confirmation
-
1. BBIC Confirmation (Execute the command "getchk").
2. Confirm the returned checksum value.
Connection of checksum value and program number is shown below.
IC4, X1, C42,
C43, R40, C81,
C82, C84
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KX-TCD346UAS / KX-TCD346UAT / KX-TCA132UAS / KX-TCA132UAT / KX-TCA130UAS / KX-TCA130UAT
Items
Check
Point
Procedure
Check or
Replace Parts
(E)* EEP-ROM Confirmation
-
1. EEP-ROM Confirmation (Execute the command "ChkTCD240XXrevYY").
XX: country code
YY: revision number
2. Confirm the returned checksum value.
Note:
“XX”, “YY”, and “checksum” vary depending on the country version. You can
find them in the batch file, PQZZ- mentioned in JIG and PC (P.32).
find them in the batch file, PQZZ- mentioned in JIG and PC (P.32).
IC3, C53, R56,
R57, C57, Q6,
Q7, R64, R65,
Q7, R64, R65,
R35
(F)* BBIC Clock Adjustment
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.
10Hz.
IC2, IC4, R137,
R125, C153,
X1, C42, C43
(G)* Hookswitch Check with
DC Characteristics
-
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
nomal 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.
CN1, L6, L7,
Q4, R23, R25,
Q5, R26, R28,
Q5, R26, R28,
IC4, D3
(H)* DTMF Generator Check
-
1. Connect CN1 (Telephone Socket) to DTMF tester.
2. Execute the command “hookoff” and “dtmf_hi”.
3. Confirm that the high frequency (1477Hz) is -3 ± 2dBm.
4. Execute the command “dtmf_lo”.
5. Confirm that the lowfrequency (852Hz) is -6 ± 2dBm.
IC4, R63, R39,
C41, R49, C46,
C47, R42, R43,
R44, R45, R46,
C47, R42, R43,
R44, R45, R46,
R47, R48,
C108, C109,
C40, C36, Q8,
D4
(I)*
Transmitted Power
Confirmation
-
Remove L4 before starting step from 1 to 7.
1. Configure the DECT tester (CMD60) as follows;
1. Configure the DECT tester (CMD60) as follows;
<Setting>
· Test mode: FP
· Traffic Carrier: 5
· Traffic Slot: 4
· Mode: Loopback
· PMID: 00000
· RF LEVEL = -70dBm.
· 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.
IC2, IC4, R137,
R125, C153, L8,
L5, L10, L9,
C140, C141,
DA1, C142,
C143, C144, L3,
L4, R118, R119,
L4, R118, R119,
L12, C30, IC11,
R10, R11, C28,
C26, C147,
C151, C157,
R123, C158,
R128, R129,
C159, C160,
R131, R130,
C161, C162,
R132, C164,
C136, R134,
R117, R127,
C156, C154,
C155, R135,
R123, C158,
R128, R129,
C159, C160,
R131, R130,
C161, C162,
R132, C164,
C136, R134,
R117, R127,
C156, C154,
C155, R135,
R136
(J)
Modulation Check and
Adjustment
-
Followsteps 1 to 6 of (I).
7.Confirm that the B-Field Modulation is -350 ~ -400/+320 ~ +370kHz/div
using data type Fig31.
using data type Fig31.
8.Adjust the B-Field Modulation if required. (Execute the command “readmod”
and “wrtmod xx”, where xx is the value.)
and “wrtmod xx”, where xx is the value.)
IC2, IC4, R137,
R125, C153, L8,
L5, L10, L9,
C140, C141,
DA1, C142,
C143, C144, L3,
L4, R118, R119,
L4, R118, R119,
L12, C30, IC11,
R10, R11, C28,
C26, C147,
C151, C157,
R123, C158,
R128, R129,
C159, C160,
R131, R130,
C161, C162,
R132, C164,
C136, R134,
R117, R127,
C156, C154,
C155, R135,
R123, C158,
R128, R129,
C159, C160,
R131, R130,
C161, C162,
R132, C164,
C136, R134,
R117, R127,
C156, C154,
C155, R135,
R136
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KX-TCD346UAS / KX-TCD346UAT / KX-TCA132UAS / KX-TCA132UAT / KX-TCA130UAS / KX-TCA130UAT
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