Philips DVP3350V Service Manual page 20

(2) No 5.0V_D
No 5.0V_D
YES
Is the Vcc(5.3V) sup-
plied to Q165 Emittor?
YES
Is the Q162 Base
'H'?
YES
Check or Replace
the Q165
(4) No 3.8V
No 3.8V
YES
Is the D123
normal?
YES
Power line of Main
PCB is short
NO
Check or Replace
the D125
NO
Check the PWR CTL
"H" signal from μ-com
NO
Check or Replace
the D123
(3) No 5.0V_T
No 5.0V_T
YES
Is the Vcc(5.3V) sup-
plied to Q163 Emittor?
YES
Is the Q162 Base
'H'?
YES
Check or Replace
the Q163
(5) No 33V
No 33V
YES
Is the Vcc(33V) sup-
plied to Q161 Emittor?
YES
Is the Q162 Base
'H'?
YES
Check or Replace
the Q161
3-4
NO
Check or Replace
the D125
NO
Check the PWR CTL
"H" signal from μ-com
NO
Check or Replace
the D121
NO
Check the PWR CTL
"H" signal from μ-com