45
KX-TG8107UA/KX-TG8108UA/KX-TGA810UA
9.3.
Troubleshooting by Symptom (Handset)
If your unit has below symptoms, follow the instructions in remedy column. Remedies depend on whether you have DECT tester
(*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
9.3.1.
Check Point (Handset)
Please follow the items below when BBIC or EEPROM is replaced.
Note:
After the measuring, suck up the solder of TP.
*:
(P.58) is required beforehand.
The connections of simulator equipments are as shown in
Items
Check
Point
Procedure
Check or
Replace Parts
(
A
)* 1.8V Supply Adjustment
VDD1
1. Confirm that the voltage between test point VDD1 and GND is 1.8V ± 0.02V.
2. Execute the command “bandgap”, then check the current Value.
3. Adjust the 1.8V voltage of VDD1 executing command “bandgap XX” (XX is the
value).
IC1, Q2, C10
(
B
)
DC/DC Supply Confir-
mation
VDD3
1. Confirm that the voltage between test point VDD3 and GND is 3.6V ± 0.3V
(Backlight is OFF)/4.2V ± 0.3V (Backlight is ON).
IC1, F1, C1,
C2, C3, R1,
Q1, D1, L1, D2
(
C
) 2.5V Supply Confirma-
tion
VDD2
1. Confirm that the voltage between test point VDD2 and GND is 2.5V ± 0.1V.
IC1, Q3, C4,
C5
(
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.
IC1, X1, C7,
C6, R19
(
E
)* EEPROM Confirmation
-
1. EEPROM Confirmation (Execute the command “ChkTGA810XXrevYY.bat”).
XX: country code
YY: revision number
2. Confirm the returned checksum value.
3. The checksum is displayed in the last output line.
Note:
“XX”, “YY”, and “checksum” vary depending on the country version. You can find
them in the batch file, PQZZ- mentioned in
IC1, IC3, R40,
R41, R42,
Q10, Q11,
R43, R44, C37
(
F
) Charge Control Check &
Charge Current Monitor
Check
-
1. Apply 3.5V between J3(+) and TP21 with DC power supply and set current limit
to 250mA.
2. Confirm that the current limit LED of DC power supply is ON/OFF.
3. Decrease current limit of DC power supply to 100mA.
4. Confirm that the current limit LED of DC power supply is stable. (Current limiter
is ON.)
(If charge control cannot be confirmed by this procedure, please use battery to hand-
set power supply and try again.)
IC1, Q4, Q5,
Q9, D6, L4, L5,
R5, R6, F1,
R8, D7, D8, R7
Содержание KX-TG8107UA
Страница 2: ...2 KX TG8107UA KX TG8108UA KX TGA810UA ...
Страница 6: ...6 KX TG8107UA KX TG8108UA KX TGA810UA 3 Specifications ...
Страница 12: ...12 KX TG8107UA KX TG8108UA KX TGA810UA 4 6 Signal Route ...
Страница 19: ...19 KX TG8107UA KX TG8108UA KX TGA810UA 7 3 2 Cancelling a Base Unit 7 4 For Service Hint ...
Страница 20: ...20 KX TG8107UA KX TG8108UA KX TGA810UA 8 Service Mode 8 1 Engineering Mode 8 1 1 Base Unit ...
Страница 23: ...23 KX TG8107UA KX TG8108UA KX TGA810UA 8 1 2 Handset ...
Страница 37: ...37 KX TG8107UA KX TG8108UA KX TGA810UA Cross Reference Check Point Base Unit P 41 ...
Страница 51: ...51 KX TG8107UA KX TG8108UA KX TGA810UA 10 1 2 Handset ...
Страница 52: ...52 KX TG8107UA KX TG8108UA KX TGA810UA 10 1 3 Charger Unit ...
Страница 64: ...64 KX TG8107UA KX TG8108UA KX TGA810UA Memo ...
Страница 83: ...83 KX TG8107UA KX TG8108UA KX TGA810UA 15 3 Cabinet and Electrical Parts Charger Unit ...
Страница 84: ...84 KX TG8107UA KX TG8108UA KX TGA810UA 15 4 Accessories and Packing Materials 15 4 1 KX TG8107UAK UAS UAT ...
Страница 85: ...85 KX TG8107UA KX TG8108UA KX TGA810UA 15 4 2 KX TG8108UAS UAT ...
Страница 86: ...86 KX TG8107UA KX TG8108UA KX TGA810UA 15 4 3 KX TGA810UAS UAT ...