Panasonic KX-TG7120FXT Service Manual page 38

KX-TG7120BXS/KX-TG7120BXT/KX-TGA711CXS/KX-TGA711CXT
Items
(M) Sensitivity Receiver
Confirmation
(N) Timing Confirmation
(O)* RSSI Level Confirmation
(P) Power RAMP Confirma-
tion
(Q)* Audio Check
(R) Charging Check
(S) TAM Operation
Confirmation
Check
Point
- Follow steps 1 to 6 of (I).
7.Set DECT tester power to -90 dBm.
8.Confirm that the BER is < 1000 ppm.
- Follow steps 1 to 6 of (I).
7.Confirm that the Timing accuracy is < ± 2.0 ppm.
- Follow steps 1 to 6 of (I).
7.Execute the command "readrssi".
8. Confirm that the returned value is 22 ± A (hex).
- Follow steps 1 to 6 of (I).
7.Confirm that Power RAMP is matching.
- 1. Link with Handset.
2. Input -45dBm/1kHz to MIC of Handset.
Measure the Level at Line I/F and distortion level.
3. Confirm that the level is -8.5 dBm ± 2 dBm and that the distortion level is < 5%
at TEL Line (600 Ω Load).
4. Input -20 dBm/1 kHz to Line I/F.
Measure the level at Receiver of Handset and distortion level
(*Receive volume set to second position from minimum).
5. Confirm that the level is -21 dBm ± 2 dBm and that the distortion level is < 5%
at Receiver (Volume Middle, 150 Ω Load).
1. Connect Charge Contact 12 Ω/2 W resistor between charge+ and charge-.
-
2. Measure and confirm voltage across the resistor is 3.10 V ± 0.2 V.
- 1. TAM Confirmation (Execute the command "sendchar_VPI")
2. Confirm the returned Value (Value is "D897FN").
Procedure
38
Check or
Replace Parts
IC7, IC10, L7,
L3, L4, L6,
C117, C118,
C119, C120,
C124, C125,
R106, R109,
DA1, C102,
R102, R103,
Q10, C110,
C112, R111,
C126, C127,
R112
IC7, IC10, L7,
L3, L4, L6,
C117, C118,
C119, C120,
C124, C125,
R106, R109,
DA1, C102,
R102, R103,
Q10, C110,
C112, R111,
C126, C127,
R112
IC7, IC10, L7,
L3, L4, L6,
C117, C118,
C119, C120,
C124, C125,
R106, R109,
DA1, C102,
R102, R103,
Q10, C110,
C112, R111,
C126, C127,
R112
IC7, IC10, L7,
L3, L4, L6,
C117, C118,
C119, C120,
C124, C125,
R106, R109,
DA1, C102,
R102, R103,
Q10, C110,
C112, R111,
C126, C127,
R112
IC7, CN1, SA1,
L1, L2, D3, Q3,
Q4, R14, R15,
R16, R17
R55, R56, C48,
C49
IC8, IC9, R89,
R91, R92