Troubleshooting Flow Chart - Sangean WR-11 Service Manual

TROUBLESHOOTING FLOW CHART

(1) Power can not be turned on
Check whether the Q400 is normal,
must have voltage is 12Vdc.
Yes
Check whether the IC402 is normal,
must have voltage is 8Vdc.
Yes
Check whether the C415 must have
voltage is 8Vdc.
Yes
Check whether the CN5_2-PIN3
must have Voltage is 8Vdc.
(2)
FMor AM band can not be turned on
Check whether the IC2 is normal,
must have voltage is 3.3Vdc.
Yes
Check whether the IC4 is normal,
must have voltage is 2Vdc.
Yes
Check whether the IC3 is normal,
pin14 voltage is 8Vdc.
No Check whether the PT300 is normal.
check whether the C306 must have
voltage is 12Vdc.
No Check whether the IC402 input is
normal, must have voltage is 12Vdc.
No Check whether CN5_2 wire is normal
connect to connector(CN5).
No Check whether the IC402 is normal,
must have voltage is 8Vdc.
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