Philips DVP3355V/F7 Service Manual page 29

FLOW CHART NO.6
Capstan Motor does not rotate.
Is approximately +5V voltage supplied to Pin(2) of
CN502?
Is over approximately 2.6V voltage supplied to
Pin(5) of CN502?
Is approximately +12V voltage supplied to
Pin(1,11) of CN502?
Replace the Capstan Motor.
FLOW CHART NO.7
Drum Motor does not rotate.
Is approximately +5V voltage supplied to Pin(2) of
CN502?
Is over approximately 2.6V voltage supplied to
Pin(8) of CN502?
Is approximately +12V voltage supplied at
Pin(1,11) of CN502?
Replace the Capstan Motor or Cylinder
Assembly.
FLOW CHART NO.8
Drum Motor rotates only for a few seconds.
Is the drum PG/FG signal inputted to Pin(47) of IC501?
Is the RF-SW signal outputted to Pin(18) of IC501?
Is approximately +12V voltage supplied Pin(1,11)
of CN502?
Replace the Capstan Motor or the Cylinder
Assembly.
FLOW CHART NO.9
RF-SW signal is not outputted.
Is the Drum Motor rotating?
Is the drum PG/FG signal inputted to Pin(47) of IC501?
Replace IC501.
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Check the P-ON+5V line and service it if detective.
No
Check the line between Pin(5) of CN502 and
Pin(28) of IC501, and service it if detective.
No
Check the AL+12V line and service it if detective.
No
Check the P-ON+5V line and service it if detective.
No Check the line between Pin(8) of CN502 and
Pin(29) of IC501, and service it if detective.
No
Check the AL+12V line and service it if detective.
No
Replace the Capstan Motor or the Cylinder
Assembly.
No
Replace IC501.
No
Check the AL+12V line and service it if detective.
D-FG
5Vp-p
DRUM PG/FG SIGNAL WAVEFORM
No
Refer to "FLOW CHART NO.7" <Drum Motor does
not rotate> and "FLOW CHART NO.8" <Drum
Motor rotates only for a few seconds>.
No
Replace the Capstan Motor or the Cylinder
Assembly.
1-10-9
D-PG
D-FG
2.5Vp-p
E8E6DTR