9 TROUBLESHOOTING BY SYMPTOM (HANDSET)
Ifyour 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
Check Point (Handset)
(P.34)
9.1.
Check Point (Handset)
Please follow the items below when BBIC or EEPROM is replaced.
Note:
After the measuring, sock up the solder of TP.
*:
PC Setting
(P.38) is required beforehand.
The connections ofadjustment equipments are as shown in
Adjustment Standard (Handset)
(P.40).
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 ofVDD1 executing command “bandgap XX” (XX is the
value).
IC1, Q2, C40
(
B
)
DC/DC Supply
Confirmation
VDD3
1. Confirm that the voltage between test point VDD3 and GND is 3.3V ± 0.3V
(Backlight is ON).
IC1, F1, C1,
C3, C57, R1,
Q1, D1, L1,57
(
C
)
2.5V Supply
Confirmation
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 ofchecksum value and program number is shown below.
IC1, X1,C7,
R19
(
E
)* EEP-ROM Confirmation
-
1. EEP-ROM Confirmation (Execute the command “ChkTCA121XXrevYY”).
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
JIG and PC
(P.38).
IC3, IC1, R39,
R40, R91,
R90, R96,
Q10, Q11,
C113
34
KX-TG1843ALS / KX-TGA122AZS / KX-TGA121AZS
Содержание KX-TG1843ALS
Страница 15: ...6 HOW TO REPLACE THE HANDSET LCD 15 KX TG1843ALS KX TGA122AZS KX TGA121AZS ...
Страница 20: ...Cross Reference Check Point Base Unit P 25 20 KX TG1843ALS KX TGA122AZS KX TGA121AZS ...
Страница 22: ...Cross Reference Check Point Handset P 34 22 KX TG1843ALS KX TGA122AZS KX TGA121AZS ...
Страница 51: ...19 SIGNAL ROUTE 51 KX TG1843ALS KX TGA122AZS KX TGA121AZS ...
Страница 52: ...52 KX TG1843ALS KX TGA122AZS KX TGA121AZS ...
Страница 58: ...22 ENGINEERING MODE 22 1 Base Unit 58 KX TG1843ALS KX TGA122AZS KX TGA121AZS ...
Страница 61: ...22 2 Handset 61 KX TG1843ALS KX TGA122AZS KX TGA121AZS ...
Страница 65: ...24 CABINET AND ELECTRICAL PARTS BASE UNIT 65 KX TG1843ALS KX TGA122AZS KX TGA121AZS ...
Страница 67: ...26 CABINET AND ELECTRICAL PARTS CHARGER UNIT 67 KX TG1843ALS KX TGA122AZS KX TGA121AZS ...
Страница 68: ...27 ACCESSORIES AND PACKING MATERIALS 27 1 KX TG1843ALS 68 KX TG1843ALS KX TGA122AZS KX TGA121AZS ...
Страница 69: ...27 2 KX TGA121AZS 69 KX TG1843ALS KX TGA122AZS KX TGA121AZS ...
Страница 71: ...28 3 Charger Unit 71 KX TG1843ALS KX TGA122AZS KX TGA121AZS ...
Страница 78: ...Memo 78 KX TG1843ALS KX TGA122AZS KX TGA121AZS ...
Страница 83: ...Memo 83 KX TG1843ALS KX TGA122AZS KX TGA121AZS ...