Sharp XV-Z200U Service Manual page 30

XV-Z200U/E, XV-Z201E
DT-300
Check of IC2002 and around I/O
Does POWER LED flicker in red ?
Yes
Is pin (9) of P1701 (P CON0) H?
Yes
Is the FAN voltage supplied?
No
Is 13 V outputted to pins (17), (18)
and (19) P1701?
No
Go to "Checking of Power Unit"
No
No
Is it in the stand-by due to
an error?
Yes
Turn on the power again.
FAN_ERROR is being detected.
Yes
Check around Q1701 and around
pin (2) of IC2002.
Yes
Check IC1708, IC1709 and
around these ICs.
No
Is Bu+6.5V outputted to pins
(12), (13) and (14) of P1701?
Yes
Is BU 5 V outputted from
IC1701?
Yes
Is BU 3.3 V outputted from
IC1702?
Yes
Is BU 2.5 V outputted from
IC1703?
Yes
Check IC8001 and the circuit
around the IC.
30
No
This is the failure of
IC2002.
No
Check IC1701 and its
periphery.
No
Check IC1702 and its
periphery.
No
Check IC1703 and its
periphery.