Panasonic KX-TCA151AZV Service Manual page 61

Items
(R) Audio Check and
confirmation
(S) SP phone Audio
check and
confirmation
Adjustment
Point
1. Link to standard BASE which is connected to Line Simulator.
-
2. Set line voltage to 48V and line current to 40mA.
3. Input -45dBm/1KHz to MIC and measure Line output level.
4. Confirm that the level is ref sample ± 5dB and confirm that the distortion level is < 5%.
5. Input -20dBm/1KHz to Line I/F and measure Receiving level at REV1 and REV2.
6. Confirm that the level is ref sample ± 5dB and confirm that the distortion level is < 5%.
1. Link to standard Base which is connected to Line Simulator.
-
2. Set line voltage to 48V and line current to 40mA.
3. Set the handset off-hook using SP-Phone key.
4. Input -45dBm/1KHz to MIC and measure Line output level.
5. Confirm that the level is reference sample ± 1.5dBm and confirm that the distortion
level is < 5%.
6. Input -20dBm/1KHz to Line I/F and measure Receiving level at SP1 and SP2.
7. Confirm that the level is reference sample ± 1.5dBm and confirm that the distortion
level is < 5%.
Procedure*
61
Check
IC1,IC2,C68
C37,C90,C9
R25,R26,C1
C87,C10,R2
C89,C17,R3
R38,R80,C9
C13,R35,C1
C16,D8,C86
C75,C77,C3
C80,R74,R3
IC1,IC2,C68
C37,C90,C9
R25,R26,C1
C87,C10,R29,C89,
R38,R80,C9
C13,R35,C1
C16,D8,C86
C75,C77,C3
C80,R74,R3