9
3.2.2.
Check Link
[Changed from original section "9.1.3. Check Link"]
3.2.2.1.
Base Unit
Cross Reference:
Power Supply Circuit
(P.5)
Check Point (Base Unit)
(P.12)
Note:
(*1) Refer to
Troubleshooting by Symptom (Base Unit and Charger Unit)
(P.12).
Check around
Power Supply Circuit
.
Does Base Unit make link with Handset?
(Correct working unit)
Check around X1 and adjust clock frequency.
Refer to
Check Point
...
(E)
.
NO
NO
NO
(*1)
NO
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
Check the RF circuit in the shield case.
Is the modulation OK?
Refer to
Check Point
...
(I)
.
Is VDDB pin about 2.65V?
Is there CMD60 (: Dect Tester)?
Is the RF clock (P1.0) oscillate: 10.368MHz in
Base Unit Test Mode?
Refer to
Check Point
...
(E)
.
Is the NTP value OK?
Refer to
Check Point
...
(H)
.
Is the RSSI Level OK?
Refer to
Check Point
...
(M)
.
Does Base Unit make link with CMD60 in
Base Unit Test Mode?
Refer to
Check Point
...
(H)
.
NO
YES
Base Unit is OK. Check Handset.
NO
YES
Is the Sensitivity Receiver OK?
Refer to
Check Point
...
(K)
.
YES
Is the Timing OK?
Refer to
Check Point
...
(L)
.
YES
Is the Frequency Offset OK?
Refer to
Check Point
...
(J)
.
