Philips DCC170/00 - Power Supply Circuit Test; Wake-Up Operation

Step 2.
Power
Supply
Circuit
Test;
wake-Up
operation
Q807
o808
To
Motor
SETVO
L.P.F
To
Analoo/
digital-
To
LOVAC
+3V
Reg
DC-DC
Converter
+3.3V
Reg
2.7V
Det
QUOl
Power
not
ON.
ls
voltage
at output
pin
of
QU02
3.3V DC?
QU02
is
defective
or F806
is
defective.
ls voltage
at output
pin
of
QU03
3.3V
DC?
QU03 is
defective.
Does
pin
@
of
QU01
oscillate?
(f
=
3 MHz)
XU01 is
defective
or
QU01
is
defective.
ls voltage
at
pin
@
of
QU01
3.2V
DC?
Check
pins
@,
@
of
QU01.
Check
each
SW
of PDO3
P.C.
Board.
QU01
is
normal.
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