38
KX-PRX120W/KX-PRXA10W
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)
(
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.
IC7,
C802~C806,
C809~C813,
C820, C837,
C822, C823,
C825, C863,
C826, C864,
C851, C853,
DA801, DA802,
L802, L803,
C855~C858,
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)
).
IC7,
C802~C806,
C809~C813,
C820, C837,
C822, C823,
C825, C863,
C826, C864,
C851, C853,
DA801, DA802,
L802, L803,
C855~C858,
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,
DA801, DA802,
L802, L803,
C855~C858,
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
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).
6. Confirm that the level is -30.0dBm± 4 dB and that the distortion level is <5%
at Receiver (Receiver Load).
IC7, SA1, P1,
D3, Q3, Q4,
R14, R15, R16,
R17, D21, Q5,
R19, R20, C14,
C56, R117,
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
(
T
)
Charging Check
-
1. Connect Charge Contact 10
Ω
/5W resistor between and charge-.
2. Measure and confirm voltage across the resistor is 5.0 V ± 0.3 V.
R1, F1
Items
Check
Point
Procedure
Check or
Replace Parts
