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

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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