
46
KX-TG8200BXB/KX-TGA820BXB
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.63) is required beforehand.
The connections of adjustment equipments are as shown in
Items
Check
Point
Procedure
Check or
Replace Parts
(
A
)* 1.8 V Supply Adjustment
VDD1
1. Confirm that the voltage between test point VDD1 and GND is 1.8 V ± 0.02 V.
2. Execute the command “bandgap”, then check the current value.
3. Adjust the 1.8 V 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 4.0 V ± 0.3 V
(Backlight is ON).
IC1, F1, C1,
C2, C3, R1,
Q1, D1, L1
(
C
) 2.5 V Supply Confirma-
tion
VDD2
1. Confirm that the voltage between test point VDD2 and GND is 2.5 V ± 0.1 V.
IC1, Q3, 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, C6,
C7
(
E
)* EEP-ROM Confirmation
-
1. EEP-ROM Confirmation (Execute the command “ChkTGA820XXrevYY”).
XX: country code
YY: revision number
2. Confirm the returned checksum value.
Note:
“XX”, “YY”, and “checksum” vary depending on the country version. You can find
them in the batch file, PQZZ- mentioned in
IC1, IC3,
RA2
(
F
) Charge Control Check &
Charge Current Monitor
Check
-
1. Apply 3.5 V between J3(+) and J4(-) with DC power supply and set current limit
to 250 mA.
2. Confirm that the current limit LED of DC power supply is ON/OFF.
3. Decrease current limit of DC power supply to 100 mA.
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, D7, D8,
L4, L5, R5, R6,
R7, F1
(
G
)* Charge Detection (OFF)
Check
-
1. Stop supplying 3.5 V to J3 ) and J4 CHARGE(-).
2. Execute the command “Backloff” then “charge”.
3. Confirm that the returned value is 00 (hex).
IC1, Q4, Q5,
Q9, D7, D8,
L4, L5, R5, R6,
R7, F1
Содержание KX-TG8200BXB
Страница 2: ...2 KX TG8200BXB KX TGA820BXB ...
Страница 14: ...14 KX TG8200BXB KX TGA820BXB 4 6 Signal Route ...
Страница 22: ...22 KX TG8200BXB KX TGA820BXB Cross Reference For Service Hint P 23 ...
Страница 23: ...23 KX TG8200BXB KX TGA820BXB 7 8 For Service Hint Cross Reference Battery Charge P 16 ...
Страница 24: ...24 KX TG8200BXB KX TGA820BXB 8 Service Mode 8 1 Engineering Mode 8 1 1 Base Unit ...
Страница 26: ...26 KX TG8200BXB KX TGA820BXB 8 1 2 Handset ...
Страница 35: ...35 KX TG8200BXB KX TGA820BXB Cross Reference Check Point Base Unit P 43 ...
Страница 37: ...37 KX TG8200BXB KX TGA820BXB Cross Reference Check Point Handset P 46 ...
Страница 54: ...54 KX TG8200BXB KX TGA820BXB ...
Страница 55: ...55 KX TG8200BXB KX TGA820BXB 10 1 2 Handset ...
Страница 56: ...56 KX TG8200BXB KX TGA820BXB 10 1 3 Charger Unit ...
Страница 57: ...57 KX TG8200BXB KX TGA820BXB 10 2 Assembly Instructions 10 2 1 Fix the LCD to the Main P C Board Handset ...
Страница 87: ...87 KX TG8200BXB KX TGA820BXB 15 3 Cabinet and Electrical Parts Charger Unit ...
Страница 88: ...88 KX TG8200BXB KX TGA820BXB 15 4 Accessories and Packing Materials 15 4 1 KX TG8200BXB ...
Страница 89: ...89 KX TG8200BXB KX TGA820BXB 15 4 2 KX TGA820BXB ...