34
KX-PRW120W/KX-PRWA10W
9.1.4.2.
Handset
Note:
(*1) Refer to
Troubleshooting by Symptom (Handset)
(P.43)
Cross Reference:
Check Point (Handset)
(P.43)
Power Supply Circuit/Reset Circuit
(P.18)
Check around
Power
S
upply Circuit/Reset Circuit
.
Check BBIC (IC1).
Does Handset make link with Base Unit?
(Correct working unit)
Check around X1 and adjust clock frequency.
Refer to
Check Point...(H)
.
NO
NO
NO
NO (*1)
NO
Is the voltage of "1.8V" about 1.8 V?
Refer to
Check Point...(A)
.
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
Replace with a new Circuit Board.
Is the voltage of +
3
.0 V about
3
.0 V?
Refer to
Check Point...(P)
.
Does the RF clock (CLK) oscillate: 10.
3
68 MHz
in Handset Test Mode?
Refer to
Check Point...(H)
.
Is the NTP value OK?
Refer to
Check Point...(I)
.
Does Handset make link with CMD60 in
Handset Test Mode?
Refer to
Check Point...(I)
.
NO
Handset is OK. Check Base Unit.
YES
OK
Is there CMD60 (: DECT Tester)?
NO
NO
YES
Is the modulation OK?
Refer to
Check Point...(J)
.
YES
Is the Frequency Offset OK?
Refer to
Check Point...(K)
.
Adjust 1.8V voltage to 1.8 V.
Refer to
Check Point...(A)
.
...
Continued to the next page.
Is the voltage of LED + about 9.0 V?
(When LED is ON)
Refer to
Check Point...(Q)
.
Is the voltage of +
3
.4 V about
3
.4 V?
YES
Check around L
3
, Q8 and BBIC (IC1).
NO
Содержание KX-PRW120W
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Страница 76: ...76 KX PRW120W KX PRWA10W Memo ...