43
KX-TG9581B/KX-TG9582B/KX-TGA950B
9.2.
Troubleshooting by Symptom (Base Unit and Charger Unit)
9.2.1.
Check Point (Base Unit)
Please follow the items below when BBIC, EEPROM or FLASH is replaced.
Note:
After the measuring, suck up the solder of TP.
The connections of simulator equipment are as shown in
Adjustment Standard (Base Unit)
Items
Check
Point
Procedure
Check or
Replace Parts
(
A
) VBAT Supply Confirma-
tion
VBAT
1. Confirm that the voltage between test point VBAT and GND is 2.6 V ± 0.2V.
IC341, F301,
F900, D901,
Q903, IC901,
L901, D1001,
IC904 C341,
C342, C386
(
B
)
3.0V Supply Confirma-
tion
VDD2
1. Confirm that the voltage between test point VDD2 and GND is 3.0 V ± 0.2 V.
IC601, Q607,
L902, IC905
(
C
)
1.8V Supply Confirma-
tion
VDD1
1. Confirm that the voltage between test point VDD1 and GND is 1.8 V ± 0.2 V.
IC601, Q606
(
D
)
2.8V Supply Confirma-
tion
VDD3
1. Confirm that the voltage between test point VDD3 and GND is 3.0V ± 0.2 V.
IC601, Q607,
L902, IC905,
D603
(
E
) +1.8V Supply Confirma-
tion
VDD5
1. Confirm that the voltage between test point VDD5 and GND is 1.8V ± 0.2V.
IC701, Q701
(
F
)*
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.
IC601, X601
(
G
)* EEPROM Confirmation
-
1. EEPROM Confirmation (Execute the command
“sendchar EPV”).
2. Confirm the returned value.(Value for reference is written at “EEPROM C/
SUM” in Software_Version_Table.xls).
IC604, R644,
C607, C629
(
H
)* BBIC Clock Adjustment
CLK
1. Check X’tal Frequency. (10.368 MHz ± 100 Hz).
Input Command “rdeeprom 00 01 01”, then you can confirm the current value.
2. If the frequency is not 10.368 MHz ± 100 Hz, Adjust the frequency of CLK exe-
cuting the command “setfreq xx (where xx is the value)” so that the reading of
the frequency counter is 10.368000 MHz ± 100 Hz.
IC601, X601
(
I
)*
Hookswitch Check with
DC Characteristics
-
1. Connect Tel_Jack 1 (Line 1)/Tel_Jack 2 (Line 2) (Telephone Socket) to Tel-
simulator which is connected with 600
Ω
.
2. Set line voltage to 48 V and line current to 40 mA at off-hook condition of nor-
mal 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.
<Line 1>
PO101,D101,
Q101, R103,
Q102, Q103,
R108
<Line 2>
PO201,D201,
Q201, PC201,
Q203, R203,
R208
(
J
) DTMF Generator Check
-
1. Connect Tel_Jack 1 (Line 1)/Tel_Jack 2(Line 2) (Telephone Socket) to DTMF
tester. (Road=600
Ω
)
2. Link Portable and push dial key.
3. Confirm DTMF character.
4. Confirm that the high Group is -6 dBm ± 2 dBm.
5. Confirm that the low Group is -8 dBm ± 2 dBm.
<Line 1>
IC601(K3),
C112, Q103,
R111, Q101,
D101, PO101
<Line 2>
IC701(21),
C218, R215,
T202, C212,
R210, R211,
Q201, D201,
P201
checksum value
E42
3
program number
JGU1AA
ex.)
