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37
KX-TG5581RUB/KX-TGA551RUB
9.2.2.
Check Point (Charger Unit)
Note:
After the measuring, suck up the solder of TP.
The connection of adjustment equipment is as shown in Adjustment Standard (Charger Unit) (P.49).
The connection of adjustment equipment is as shown in Adjustment Standard (Charger Unit) (P.49).
(N)*
Sensitivity Receiver
Confirmation
-
ANTI_TP
Follow steps 1 to 6 of (J).
7.Set DECT tester power to -88 dBm.
8.Confirm that the BER is < 1000 ppm.
8.Confirm that the BER is < 1000 ppm.
IC7,
C802~C806,
C809~C813,
C820, C837,
C822, C823,
C825, C863,
C826, C864,
C851, C853,
C809~C813,
C820, C837,
C822, C823,
C825, C863,
C826, C864,
C851, C853,
DA801, DA802,
L802, L803,
C855~C858,
R806, R807,
R106, R109,
R806, R807,
R106, R109,
Q9, C617,R71
(O)*
Timing Confirmation
-
ANTI_TP
Follow steps 1 to 6 of (J).
7.Confirm that the Timing accuracy is
• ± 5.0 ppm (When adjust the frequency of CLK in item (G)).
• ± 15 ppm (When do not adjust the frequency of CLK in item (G)).
• ± 15 ppm (When do not adjust the frequency of CLK in item (G)).
IC7,
C802~C806,
C809~C813,
C820, C837,
C822, C823,
C825, C863,
C826, C864,
C851, C853,
C809~C813,
C820, C837,
C822, C823,
C825, C863,
C826, C864,
C851, C853,
DA801, DA802,
L802, L803,
C855~C858,
R806, R807,
R106, R109,
R806, R807,
R106, R109,
Q9, C617,R71
(P)*
Power RAMP
Confirmation
-
Follow steps 1 to 6 of (J).
7.Confirm that Power RAMP is matching.
IC7,
C802~C806,
C809~C813,
C820, C837,
C822, C823,
C825, C863,
C826, C864,
C851, C853,
C809~C813,
C820, C837,
C822, C823,
C825, C863,
C826, C864,
C851, C853,
DA801, DA802,
L802, L803,
C855~C858,
R806, R807,
R106, R109,
R806, R807,
R106, R109,
Q9, C617,R71
(Q)
Audio Check
-
1. Link with Handset which is connected to Line Simulator.
2. Set line voltage to 48V and line current to 50mA.
3. Input -45dBm(600
2. Set line voltage to 48V and line current to 50mA.
3. Input -45dBm(600
Ω)/1kHz to MIC of Handset. Measure the Level at Line I/F
and distortion level.
4. Confirm that the level is -2.5dBm±5 dB and that the distortion level is <5% at
TEL Line (600
Ω Load).
5. Input -20dBm(600
Ω)/1kHz to Line I/F. Measure the Level at Receiver of
Handset and distortion level (Receive volume set to second position from
minimum).
minimum).
6. Confirm that the level is -23dBm± 4 dB and that the distortion level is <5% at
Receiver (34
Ω Load).
IC7, SA1, P1,
D3, Q3, Q4,
R14, R15, R16,
R17, D21, Q5,
R19, R20, C14,
C56, R117,
R116, R29,
R116, R29,
C22
(S)
2.4V Supply
Confirmation VDD2
VDD2
1. Confirm that the voltage between test point VDD2 and GND is 2.5V ± 0.2V.
IC7, Q9, C617,
R71
Items
Check
Point
Procedure
Check or
Replace Parts
(A)
Charging Check
-
1. Connect Charge Contact 12
Ω/2 W resistor between charge+ and charge-.
2. Measure and confirm voltage across the resistor is 3.1 V ± 0.3 V.
R1, F1
Items
Check
Point
Procedure
Check or
Replace Parts
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