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48
KX-TG8200BXB/KX-TGA820BXB
9.3.2.
Troubleshooting for Speakerphone
When the customer’s telephone line corresponds to the following conditions, and the transmission signal of SP-Phone is inter-
rupted, performing the next set up to a cordless handset will improve it to some extent.
Conditions
1. When customer’s line has less line loss.
ex.) The customer is using optical fiber, ISDN terminal adaptor, or PBX.
In this case, receiving signal is strong and it may affect transmission signal.
2. When the other party is talking from noisy place.
ex.) The other party is using cellular phone. The background noise is very loud.
In this case, the noise from the other party (i.e. surrounding noise) may affect transmission signal.
Setting Method
• Change the handset address of EEPROM (0128) from 00 to 01 by
Engineering Mode
.
(
P
)* Power RAMP Confirma-
tion
-
Follow steps 1 to 3 of
(K)
.
4.Confirm that Power RAMP is matching.
IC1, IC4, C58,
C57, C52,
C53, R52,
C61, C59,
C125, C62
(
Q
) Audio Check and Confir-
mation
-
1. Link to BASE which is connected to Line Simulator.
2. Set line voltage to 48 V and line current to 40 mA.
3. Input -45 dBm/1 KHz to MIC and measure Line output level.
4. Confirm that the level is -8.5 dBm ± 2 dBm and that the distortion level is < 5 %
at TEL Line (600
Ω
Load).
5. Input -20 dBm/1KHz to Line I/F and measure Receiving level at REV1 and
REV2.
6. Confirm that the level is -21 dBm ± 2 dBm and that the distortion level is < 5 %
at Receiver. (vol = 2)
IC1, R23, R24,
R25, C11,
C12, C75,
C70, C71
(
R
) SP phone Audio Check
and Confirmation
-
1. Link to Base which is connected to Line Simulator.
2. Set line voltage to 48 V and line current to 40 mA.
3. Set the handset off-hook using SP-Phone key.
4. Input -25 dBm/1KHz to Line I/F and measure Receiving level at SP_TEST1
and SP_TEST2.
5. Confirm that the level is -14 dBm ± 2 dBm and that the distortion level is < 5 %.
(vol = 3)
IC1, R23, R24,
R25, C11,
C39, C12,
C75, C99,
C111
Items
Check
Point
Procedure
Check or
Replace Parts
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 ...