Panasonic KX-TG6561RUT / KX-TGA651RUT Service Manual ▷ View online
41
KX-TG6561RUT/KX-TGA651RUT
9.1.12. Bell Reception
9.1.12.1. Base Unit
9.1.12.2. Handset
Cross Reference:
Telephone Line Interface (P.12)
Check Link (P.32)
How to Check the Handset Speaker or Receiver (P.64)
Check Link (P.32)
How to Check the Handset Speaker or Receiver (P.64)
9.1.13. Check TAM Operation
Cross Reference:
Power Supply Circuit/Reset Circuit (P.10)
Note:
(*1) When replacing FLASH MEMORY (IC421), TAM data need to be written to it. Refer to Base Unit of Things to Do after
Replacing IC or X'tal (P.61)
Replacing IC or X'tal (P.61)
When bell signal is coming, is there bell sound
signal at BBIC (IC501: 59)?
signal at BBIC (IC501: 59)?
NO
YES
NO
When bell signal is coming, is there bell sound
signal at IC501 (29, 31)?
signal at IC501 (29, 31)?
Check around L474, L475.
Check around R111, R112, R113, R114, Q111,
D113, C111, C112,
D113, C111, C112,
Does the bell sound from SPEAKER?
Check around SP+, SP- .
When bell signal coming, is there bell sound signal
at BBIC (IC1: 31, 29)?
at BBIC (IC1: 31, 29)?
NO
NO
YES
When bell signal coming, is there bell sound signal
at SP+, SP- ?
at SP+, SP- ?
YES
Check cable of SPEAKER and resistance value
of SPEAKER.
of SPEAKER.
Check IC601 and BBIC (IC501) of Base Unit. (*1)
Is there a TAM icon on the Handset display?
Turn on the Answering System.
Check Power Supply Circuit.
NO
NO
YES
42
KX-TG6561RUT/KX-TGA651RUT
9.2.
Troubleshooting by Symptom (Base Unit and Charger Unit)
If your unit has below symptoms, follow the 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.
(*2) Refer to Check Point (Base Unit) (P.42)
level in detail.
(*2) Refer to Check Point (Base Unit) (P.42)
9.2.1.
Check Point (Base Unit)
Please follow the items below when BBIC or EEPROM or FLASH is replaced.
Note:
After the measuring, suck up the solder of TP.
*: The Setting Method of JIG (Base Unit) (P.54) is required beforehand.
The connections of simulator equipments are as shown in Adjustment Standard (Base Unit) (P.56).
*: The Setting Method of JIG (Base Unit) (P.54) is required beforehand.
The connections of simulator equipments are as shown in Adjustment Standard (Base Unit) (P.56).
You have DECT Tester.
(Model Number : CMD60)
Check item (A)-(I),(T).
Check item (A)-(I), (J)-(P),(T).
Check item (A)-(G),(Q),(T).
Check item (A)-(G), (J)-(P), (Q),(T).
-
Check item (J)-(P).
Check item (Q).
Check item (Q).
Check item (Q).
Check item (Q).
Check item (A)-(I).
Check item (A)-(P).
You cannot dial.
You cannot hear the caller's voice.
You cannot use handset a little away from base unit
even if the handset is within range of the base unit.
even if the handset is within range of the base unit.
The acoustic transmit level is high or low.
The acoustic reception level is high or low.
Base unit and handset do not link each other.
Remedy (*2)
Symptom
You don't have DECT Tester.
Items
Check
Point
Procedure
Check or
Replace Parts
(A)
3.0 V Supply
Confirmation
Confirmation
VBAT
1. Confirm that the voltage between test point VDD3 and GND is 3.0 V ± 0.2 V.
C304, C310,
C303, D301,
C303, D301,
C341, F301,
Q301, L301,
Q301, L301,
Q302, IC301,
R301, R303,
R308, R306
(B)
1.2 V Supply
Confirmation
Confirmation
VDDC
1. Confirm that the voltage between test point VDDC and GND is 1.2 V ± 0.1 V.
IC501
(D) Charge Pump 3.0V
Supply Confirmation
+3.0V
1. Confirm that the voltage between test point +3.0V and GND is 3.0 V ± 0.2 V.
IC601, C504,
C521
(E)*
BBIC Confirmation
-
1. BBIC Confirmation (Execute the command “getchk”).
2. Confirm the returned checksum value.
2. Confirm the returned checksum value.
Connection of checksum value and program number is shown below.
IC501, X501,
RA504, R505
(F)* EEPROM Confirmation
-
1. EEP-ROM Confirmation (Execute the command "sendchar EPV").
2. Confirm the returned Value. (Value for reference is written at "EEPROM C/
2. Confirm the returned Value. (Value for reference is written at "EEPROM C/
SUM" in Software_Version_Table.xls).
IC661, IC501,
R612, R606,
R605
(G)* BBIC Clock Adjustment
CLK
1. Input Command “ sendchar sfr”, then you can confirm the current value.
2. Check X’tal Frequency. (13.824 MHz ± 100 Hz).
3. If the frequency is not 13.824 MHz ± 100 Hz, adjust the frequency of CLK
2. Check X’tal Frequency. (13.824 MHz ± 100 Hz).
3. If the frequency is not 13.824 MHz ± 100 Hz, adjust the frequency of CLK
executing the command “sendchar sfr xx xx (where xx is the value)” so that
the reading of the frequency counter is 13.824 MHz ± 7 Hz.
the reading of the frequency counter is 13.824 MHz ± 7 Hz.
IC501, X501,
C508, C509
(H)* Hookswitch Check with
DC Characteristics
-
1. Connect Telephone Socket to Tel-simulator which is connected with 600
Ω.
2. Set line voltage to 48 V and line current to 40mA at off-hook condition of
normal telephone.
3. Execute the command “hookoff”
4. Confirm that the line current is 40 mA ± 5 mA.
5. Execute the command “hookon”.
6. Confirm that the line current is less than + 0.8 mA.
4. Confirm that the line current is 40 mA ± 5 mA.
5. Execute the command “hookon”.
6. Confirm that the line current is less than + 0.8 mA.
P101, D101,
R141, R142,
R141, R142,
Q142, R144,
R145, D141,
R162, R165,
Q161, R161,
R164, R163,
R167, R651,
R145, D141,
R162, R165,
Q161, R161,
R164, R163,
R167, R651,
R152
checksum value
82D2
program number
DC01EN
ex.)
43
KX-TG6561RUT/KX-TGA651RUT
(I) DTMF Generator Check
-
1. Connect Telephone Socket to DTMF tester. (Load=600
Ω)
2. Link Handset and push dial key.
3. Confirm DTMF character.
4. Confirm that the high Group is -3.0 ± 2dBm.
5. Confirm that the low Group is -6.0 ± 2dBm.
3. Confirm DTMF character.
4. Confirm that the high Group is -3.0 ± 2dBm.
5. Confirm that the low Group is -6.0 ± 2dBm.
R181, C184,
Q161, D141
(J)*
Transmitted Power
Confirmation
-
ANT 1
Remove the Antenna before starting step from 1 to 7.
1. Configure the DECT tester (CMD60) as follows;
<Setting>
• Test mode: FP
• Traffic Carrier: 5
• Traffic Slot: 4
• Mode: Loopback
• PMID: 00000
• PACKET: PP32Z
• RF LEVEL = -70 dBm.
• Traffic Carrier: 5
• Traffic Slot: 4
• Mode: Loopback
• PMID: 00000
• PACKET: PP32Z
• RF LEVEL = -70 dBm.
* Do the seguence 2 to 5 is 14 second.
2. Execute the command ”sendchar TST”.
3. Execute the command “sendchar dmv 2 2”.
4. Check that “Signalling Status” has been set to “Locked”, then press “ACCEPT
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 18.5 dBm ~ 23.5 dBm.
6. Execute the command “ANT1”.
7. Confirm that the NTP value at ANT is 18.5 dBm ~ 23.5 dBm.
IC501, C805,
C806, C810,
C814, C811,
C813, C812,
C814, C811,
C813, C812,
L809, C825,
C895, L897,
C895, L897,
C894, R806,
C859, C896,
C859, C896,
DA801, DA802,
C891, R891
(K)*
Modulation Check
-
ANT 1
Follow steps 1 to 6 of (J).
7.Confirm that the B-Field Modulation is -330 ± 30/ +330± 30 kHz/div &
Modulated width 620 kHz using data type Fig31.
Modulated width 620 kHz using data type Fig31.
IC501, C805,
C806, C810,
C814, C811,
C813, C812,
C814, C811,
C813, C812,
L809, C825,
C895, L897,
C895, L897,
C894, R806,
C859, C896,
C859, C896,
DA801, DA802,
C891, R891
(L)* Frequency Offset Check
-
ANT 1
Follow steps 1 to 6 of (J).
7.Confirm that the frequency offset is < ± 50 kHz.
IC501, C805,
C806, C810,
C814, C811,
C813, C812,
C814, C811,
C813, C812,
L809, C825,
C895, L897,
C895, L897,
C894, R806,
C859, C896,
C859, C896,
DA801, DA802,
C891, R891,
X501, C508,
X501, C508,
C509
(M)*
Frequency Drift
Confirmation
-
ANT 1
Follow steps 1 to 6 of (J).
7.Confirm that the frequency drift is < ± 35 kHz/ms.
IC501, C805,
C806, C810,
C814, C811,
C813, C812,
C814, C811,
C813, C812,
L809, C825,
C895, L897,
C895, L897,
C894, R806,
C859, C896,
C859, C896,
DA801, DA802,
C891, R891
(N)*
Sensitivity Receiver
Confirmation
-
ANT 1
Follow steps 1 to 6 of (J).
7.Set DECT tester power to -90 dBm.
8.Confirm that the BER is < 1000 ppm.
8.Confirm that the BER is < 1000 ppm.
IC501, C805,
C806, C810,
C814, C811,
C813, C812,
C814, C811,
C813, C812,
L809, C825,
C895, L897,
C895, L897,
C894, R806,
C859, C896,
C859, C896,
DA801, DA802,
C891, R891,
C820, C863,
C826, C822,
C827, R807,
C820, C863,
C826, C822,
C827, R807,
R892, C852
Items
Check
Point
Procedure
Check or
Replace Parts
44
KX-TG6561RUT/KX-TGA651RUT
9.2.2.
Check Point (Charger Unit)
Note:
After the measuring, suck up the solder of TP.
The connection of adjustment equipment is as shown in Adjustment Standard (Charger Unit) (P.57).
The connection of adjustment equipment is as shown in Adjustment Standard (Charger Unit) (P.57).
(O)*
Timing Confirmation
-
ANT 1
Follow steps 1 to 6 of (J).
7.Confirm that the Timing accuracy is
• ± 5.0 ppm (When adjust the frequency of CLK in item (G)).
• ± 15 ppm (When do not adjust the frequency of CLK in item (G)).
• ± 15 ppm (When do not adjust the frequency of CLK in item (G)).
IC501, C805,
C806, C810,
C814, C811,
C813, C812,
L809, C825,
C895, L897,
C895, L897,
C894, R806,
C859, C896,
C859, C896,
DA801, DA802,
C891, R891,
X501
(P)*
Power RAMP
Confirmation
-
Follow steps 1 to 6 of (J).
7.Confirm that Power RAMP is matching.
IC501, C805,
C806, C810,
C814, C811,
C813, C812,
L809, C825,
C895, L897,
C895, L897,
C894, R806,
C859, C896,
C859, C896,
DA801, DA802,
C891, R891
(Q)
Audio Check
-
1. Link with Handset which is conected to Line Simulator.
2. Set line voltage to 48V and line current to 50mA.
3. Input -45dBm(600
2. Set line voltage to 48V and line current to 50mA.
3. Input -45dBm(600
Ω)/1kHz to MIC of Handset. Measure the Level at Line I/F
and distortion level.
4. Confirm that the level is -1dBm±2 dBm and that the distortion level is <5% at
TEL Line (600
Ω Load).
5. Input -20dBm(600
Ω)/1kHz to Line I/F. Measure the Level at Receiver of
Handset and distortion level (Receive volume set to second position from
minimum).
minimum).
6. Confirm that the level is -25dBm±2 dBm and that the distortion level is <5% at
Receiver (110
Ω Load).
P101, D101,
R141, R142,
R141, R142,
Q142, R144,
R145, D141,
R162, R165,
Q161, R161,
R164, R163,
R167, R651,
R145, D141,
R162, R165,
Q161, R161,
R164, R163,
R167, R651,
R152, IC501,
C805, C806,
C810, C814,
C810, C814,
C811, C813,
C812, L809,
C825, C895,
L897, C894,
R806, C859,
C896, DA801,
DA802, C891,
DA802, C891,
R891, C173,
Q171, C178,
R178, IC501
Q171, C178,
R178, IC501
(R)
Charging Check
-
1. Connect Charge Contact 12
Ω/2 W resistor between charge+ and charge-.
2. Measure and confirm voltage across the resistor is 3.3 V ± 0.3 V.
R55, R56, D22,
D23, D24, C623,
C624
(S)
TAM Operation
Confirmation
-
1. TAM Confirmation (Execute the command "sendchar VPI").
2. Confirm the returned Value (Value is "DC17RN_01").
2. Confirm the returned Value (Value is "DC17RN_01").
IC601, R601,
R602, R604,
R603, C601
Items
Check
Point
Procedure
Check or
Replace Parts
(A)
Charging Check
-
1. Connect Charge Contact 12
Ω/2 W resistor between charge+ and charge-.
2. Measure and confirm voltage across the resistor is 3.1 V ± 0.3 V.
R1, F1
Items
Check
Point
Procedure
Check or
Replace Parts
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