Sangean DPR-15, Service Manual

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Power can not be turned on
No
Check Pin14 of IC1 is VCC.
Check whether the Pin1 of IC1 is
High Level.
Yes
Yes Check SW1 and IC1.
No
Check Q6
～
Q8 and D13.
Check whether the Q8
〝
C
〞
is
High Level.
Yes
No
Check whether the Pin5 of IC4 is
3.3V.
Check Pin4 of IC4 is 0.7V up and
Q14
、
D12
、
L1
、
L4.
Yes
No
Check L2
、
L5 and IC5.
Check whether the Pin3 of IC5 is
5.0V.
Yes
No
Check whether the Pin1 of RS
－
200
Module is 5.0V and the Pin17 is 3.3V.
Yes
Check Module.
TROUBLESHOOTING FLOW CHART
11