Panasonic KX-TG9471B, Руководство по обслуживанию

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KX-TG9471B/KX-TG9472B/KX-TGA939T
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) (P.58).
Items Check
Point
Procedure Check or
Replace Parts
( A ) 4.0 V Supply Confirma-
tion
TP4V 1. Confirm that the voltage between test point TP4V and GND is 4.0 V ± 0.2 V. IC341, F301,
R341, R342,
C301, C303,
C341, C342,
C386
( B ) 3.3 V Supply Confirma-
tion
TP+3.3 V 1. Confirm that the voltage between test point TP3.6 V and GND is 3.3 V ± 0.2 V. IC331, R963,
R964, C332
( C ) 2.5 V Supply Confirma-
tion
TP+2.5 V 1. Confirm that the voltage between test point TP2.5 V and GND is 2.5 V ± 0.2 V. IC321, R322,
R321, C321
( D ) 3.0 V Supply Confirma-
tion
TP+3.0 V 1. Confirm that the voltage between test point TP3.0 V and GND is 3 V ± 0.2 V. Q381, R381,
R382, R383,
C382
( E ) 1.8 V Supply Confirma-
tion
TP+1.8 V 1. Confirm that the voltage between test point TP1.8 V and GND is 1.8 V ± 0.1 V. Q386, R386,
C388
( 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.
IC501, X501,
R511, C511,
C512, IC561
( G )* EEPROM Confirmation - 1. EEPROM Confirmation (Execute the command
“ChkTG9471_XXX_RevYYY.bat”).
XXX: country code
YYY: revision number
2. Confirm the returned checksum value.
3. The checksum is displayed in the last output line.
Note:
"XXX” “YYY” and “checksum” vary depending on the country version. You can
find them in the batch file.
IC551, R552,
R553, R554,
C551
( 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.
IC501, X501,
R511, C511,
C512
( I )* Hookswitch Check with
DC Characteristics
- 1. Connect CN101 (Line 1)/CN201 (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, L108,
L109, D101,
Q101, R102,
PC102, Q131,
R124, R125
<Line 2>
PO201, L208,
L209, D201,
Q201, PC202,
Q231, R224,
R225
( J ) DTMF Generator Check - 1. Connect CN101 (Line 1)/CN201 (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>
IC501, R177,
T146, R128,
C128, Q131,
R136, R134,
R133
<Line 2>
IC501, C246,
R277, T246,
R228, C228,
Q231, R236,
R232, R234,
R233
checksum value
C8D7
program number
DB01AC
ex.)