30
KX-TG1381HKH/KX-TG1381HKV/KX-TG1381HKW/KX-TG1382HKH/KX-TGA131HMH/KX-TGA131HMV/KX-TGA131HMW
9.2.2. Check Point (Charger Unit)
Note:
After the measuring, suck up the solder of TP.
The connection of adjustment equipment are as shown in Adjustment Standard (Charger Unit) (P.40).
(L)* Timing Confirmation - Follow steps 1 to 3 of (H).
4. Confirm that the Timing accuracy is < ± 2.0ppm.
Career mod-
ule, C4, C6,
C2, C3, C25,
C8, C1, C12,
C13, C7, L1,
L2, C18, C19,
D1, C17, R2,
C23, BASE
module. R43,
R44, L2, C38,
C42, D6, C39,
C41
(M)* RSSI Level Confirmation - Follow steps 1 to 3 of (H).
4. Set DECT tester power to -70dBm.
5. Execute the command “readrssi”.
6. Confirm: 25 < returned value < 43 (hex) (0E ± A (hex))
Career mod-
ule, C4, C6,
C2, C3, C25,
L3, L4, C15,
C20, R1, C21,
D1, C17, C20,
R1, C21, D1,
C17, BASE
module, R43,
R44, L2, C38,
C42, D6, C39,
C41
(N) Charging Check - 1. Connect Charge Contact 12Ω/2W resistor between charge+ and charge-.
2. Measure and confirm voltage across the resistor is 2.3V ± 0.2V.
F1, D5, R39,
D8, D9, C40
(O)* Audio Check - 1. Link with Handset.
2. Set line voltage to 48V and line current to 40mA.
3. Input -45dBm/1kHz to MIC of Handset.
Measure the Level at Line I/F and distortion level.
4. Confirm that the level is -9.0 ± 3dBm and that the distortion level is < 5% at TEL
Line (600Ω Load).
5. Input -20dBm/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 -22.5 ± 3dBm and that the distortion level is < 5% at
Receiver (Volume Middle, 150Ω Load).
Items Adjustment
Point
Procedure Check or
Replace Parts
(A) Charging Check - 1. Connect Charge Contact 10Ω/2W resistor between charge+ and charge-.
2. Measure and confirm voltage across the resistor is 2.75V ± 0.3V.
R1, D1, F1
Items Adjustment
Point
Procedure Check or
Replace Parts
To Next Page
Loading...
