49
KX-TG8421E/KX-TG8422E/KX-TG8423E/KX-TG8424E/KX-TGA840E
(
H
)* Hookswitch Check with
DC Characteristics
-
1. Connect Telephone Socket to Tel-simulator which is connected with 600
Ω
.
2. Set line voltage to 48 V and line current to 40mA 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.
L1, L2, Q3, R14,
R15, Q4, R16,
R17, D3,
R18~R24,
C15~C17
,
D21,
Q5, R27, IC7
(
I
) DTMF Generator Check
-
1. Connect Telephone Socket to DTMF tester. (Load=600
Ω
)
2. Link Handset and push dial key.
3. Confirm DTMF character.
4. Confirm that the high Group is -6.0 dBm ~ -10.0 dBm.
5. Confirm that the low Group is -8.5 dBm ~ -12.5 dBm.
IC7, R116,
C141, R29, C22,
C23, Q5, D21
(
J
)* Transmitted Power Con-
firmation
-
ANTI_TP
Remove the Antenna before starting step from 1 to 7.
1. Configure the DECT tester (CMD60) as follows;
<Setting>
• Test mode: FP
• Traffic Carrier: 5
• Traffic Slot: 4
• Mode: Loopback
• PMID: 00000
• RF LEVEL = -70 dBm.
2. Execute the command ”sendchar TST”.
3. Execute the command “sendchar dmv 2 2”.
4. Check that “Signalling Status” has been set to “Locked”, then press “ACCEPT
RFPI”.
5. Initiate connection from Dect tester (“set up connect”)
6. Execute the command “ANT1”.
7. Confirm that the NTP value at ANT is 19.0 dBm ~ 25.0 dBm.
IC7,
C802~C806,
C808~C814,
C820, C819,
C822, C823,
C825, C827,
C826, C834,
C851, C853,
C859~C861,
DA801, DA802,
IC801,
L801~L803,
C855~C858,
R801~R807,
R106, R109,
Q9, C617
(
K
)* Modulation Check and
Adjustment
-
ANTI_TP
Follow steps 1 to 6 of
(J)
.
7.Confirm that the B-Field Modulation is -370 ± 30/ +370± 30 kHz/div & Modu-
lated width 690 kHz using data type Fig31.
8.Adjust the B-Field Modulation if required. (Execute the command “readmod”
and “wrtmod xx”, where xx is the value.)
IC7,
C802~C806,
C808~C814,
C820, C819,
C822, C823,
C825, C827,
C826, C834,
C851, C853,
C859~C861,
DA801, DA802,
IC801,
L801~L803,
C855~C858,
R801~R807,
R106, R109,
Q9, C617
(
L
)* Frequency Offset Check
-
ANTI_TP
Follow steps 1 to 6 of
(J)
.
7.Confirm that the frequency offset is < ± 50 kHz.
IC7,
C802~C806,
C808~C814,
C820, C819,
C822, C823,
C825, C827,
C826, C834,
C851, C853,
C859~C861,
DA801, DA802,
IC801,
L801~L803,
C855~C858,
R801~R807,
R106, R109,
Q9, C617
Items
Check
Point
Procedure
Check or
Replace Parts
Содержание KX-TG8421EB
Страница 2: ...2 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E ...
Страница 14: ...14 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E 4 6 Signal Route ...
Страница 15: ...15 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E ...
Страница 24: ...24 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E 7 5 Troubleshooting ...
Страница 25: ...25 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E ...
Страница 26: ...26 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E ...
Страница 27: ...27 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E ...
Страница 29: ...29 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E 8 Service Mode 8 1 Engineering Mode 8 1 1 Base Unit ...
Страница 31: ...31 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E 8 1 2 Handset ...
Страница 40: ...40 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E Cross Reference Check Point Base Unit P 48 ...
Страница 42: ...42 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E Cross Reference Check Point Handset P 52 ...
Страница 57: ...57 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E ...
Страница 58: ...58 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E 10 1 2 Handset ...
Страница 59: ...59 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E 10 1 3 Charger Unit ...
Страница 60: ...60 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E 10 2 How to Replace the Handset LCD ...
Страница 79: ...79 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E 1 Put the shield case 2 Solder the surroundings ...
Страница 81: ...81 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E Memo ...
Страница 83: ...83 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E Memo ...
Страница 87: ...87 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E Memo ...
Страница 99: ...99 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E 15 3 Cabinet and Electrical Parts Charger Unit ...
Страница 101: ...101 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E 15 4 2 KX TG8422EB EM EN ...
Страница 102: ...102 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E 15 4 3 KX TG8423EB EM EN ...
Страница 103: ...103 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E 15 4 4 KX TG8424EB EM EN ...
Страница 104: ...104 KX TG8421E KX TG8422E KX TG8423E KX TG8424E KX TGA840E 15 4 5 KX TGA840EB EM EN ...