3. The Base and handset cant connect.
Check whether theCheck whether the handsetBy using voltmeter, check the base &
NG NG
handset and the baseand the base RX, TX-Loop-handset PLL circuit (B/HU2 and
unit are connected.are OK.surrounding circuit of B/HU2)
OK
NG
By using voltmeter, check
Check the base TX Power
the base TX circuit.
OK OK
Check the base TX data
NGBy using voltmeter, check
deviationBU5 and BU6
OK
Check the handset RX NGCheck the handset RX RF
circuit (HU1) as well as
Sensitivity
HQ2 and HQ4.
OK
NGCheck HU5C and
Check RX data pulse wave
surrounding circuit of HU5
on RX-DATA
By using voltmeter, Check
NG
the handset TX circuit (HQ1
Check the handset
and HQ13).
TX power.
OK
NGAt the PIN24 of HU3, Can NG
Check the handsetthe pulse wave be seen.
Check HU3 circuit.
data deviation.
OK
OK
Check the handset data
circuit (around HU5C)
NG NG
Alignment the BC151 and
Check the base RXCheck the base RX TEL
by using voltmeter, check
SensitivityOUT.
OKBU1
Check the base RX RF and
mixer circuit (around BQ7).
17 |
ACEC
