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3.2.4.
Troubleshooting by Symptom (Base Unit and Charger Unit)
3.2.4.1.
Check Point (Base Unit)
[Changed from original section “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) is required beforehand.
The connections of simulator equipment are as shown in Adjustment Standard (Base Unit) (P.17).
*: The Setting Method of JIG (Base Unit) is required beforehand.
The connections of simulator equipment are as shown in Adjustment Standard (Base Unit) (P.17).
Items
Check
Point
Procedure
Check or
Replace Parts
(A)
3.0 V Supply
Confirmation
Confirmation
VDD3
1. Confirm that the voltage between test point VDD3 and GND is 2.85 V ± 0.2 V. IC2, C32, C36,
C86, C88, R91,
R93, L3, C602,
C38, R605,
R607, R608,
R609, R610,
R609, R610,
R612, Q602
(B)
1.8 V Supply
Confirmation
Confirmation
VDD1
1. Confirm that the voltage between test point VDD1 and GND is 1.8 V ± 0.02 V.
2. Execute the command “VDD”, then check the current value.
3. Adjust the 1.8V voltage of VDD1 executing command “VDD XX“(XX is the
2. Execute the command “VDD”, then check the current value.
3. Adjust the 1.8V voltage of VDD1 executing command “VDD XX“(XX is the
value).
Q8, C75, C614,
C60, IC7, R611
(C) Charge Pump 3.0V
Supply Confirmation
VDD5
1. Confirm that the voltage between test point VDD5 and GND is 3.0 V -0.1/+0.3
V.
IC7,C625,C631
(D) Charge Pump 3.0V
Supply Confirmation
VDD4
1. Confirm that the voltage between test point VDD4 and GND is 3.0 V ± 0.2 V.
IC7,C616,
R620,C630
(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.
IC7, X1, R77,
RA80
(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).
IC7, RA402,
C51, R657,
IC401
(G)* BBIC Clock Adjustment
CLK
1. Confirm that the voltage between testpoint VDD4 and GND is less than 1.0 V.
2. Input Command “ sendchar sfr”, then you can confirm the current value.
3. Check X’tal Frequency. (10.368 MHz ± 20 Hz).
4. If the frequency is not 10.368MHz ± 20Hz, adjust the frequency of CLK
2. Input Command “ sendchar sfr”, then you can confirm the current value.
3. Check X’tal Frequency. (10.368 MHz ± 20 Hz).
4. If the frequency is not 10.368MHz ± 20Hz, 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 10.368000 MHz ± 5 Hz.
the reading of the frequency counter is 10.368000 MHz ± 5 Hz.
X1, IC7, C305
(H)* Hookswitch Check with
DC Characteristics
-
1. Connect Telephone Socket to Tel-simulator which is connected with 600
.
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.
P1, Q3, R14,
R15, Q4, R16,
R17, D3,
R18~R24, D21,
Q5, R27, IC7
(I) DTMF Generator Check
-
1. Connect Telephone Socket to DTMF tester. (Load=600
)
2. Link Handset and push dial key.
3. Confirm DTMF character.
4. Confirm that the high Group is -3.0 dBm ± 2 dBm.
5. Confirm that the low Group is -6.5 dBm ± 2 dBm.
3. Confirm DTMF character.
4. Confirm that the high Group is -3.0 dBm ± 2 dBm.
5. Confirm that the low Group is -6.5 dBm ± 2 dBm.
IC7, R116, R29,
C22, Q5, D21
(J)*
Transmitted Power
Confirmation
-
ANTI_TP
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
• RF LEVEL = -70 dBm.
• Traffic Carrier: 5
• Traffic Slot: 4
• Mode: Loopback
• PMID: 00000
• RF LEVEL = -70 dBm.
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 19.0 dBm ~ 25.0 dBm.
6. Execute the command “ANT1”.
7. Confirm that the NTP value at ANT is 19.0 dBm ~ 25.0 dBm.
IC7,
C802~C806,
C810~C813,
C825, C851,
C810~C813,
C825, C851,
C853,
DA801, DA802,
C855~C858,
R806, R807,
R806, R807,
R106, R109
checksum value
B10C
program number
DCE1EN
ex.)
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