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Preparation For Servicing - Philips MDV530VR/17 Service Manual

Digital video disc player & video cassette recorder.
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PREPARATION FOR SERVICING

How to Enter the Service Mode
About Optical Sensors
Caution:
An optical sensor system is used for the Tape Start
and End Sensors on this equipment. Carefully read
and follow the instructions below. Otherwise the unit
may operate erratically.
What to do for preparation
Insert a tape into the Deck Mechanism Assembly and
press the PLAY button. The tape will be loaded into
the Deck Mechanism Assembly. Make sure the power
is on, TP502 (SENSOR INHIBITION) to GND. This will
stop the function of Tape Start Sensor, Tape End Sen-
sor and Reel Sensors. (If these TPs are connected
before plugging in the unit, the function of the sensors
will stay valid.) See Fig. 1.
Q503
Q504
TP502
S-INH
Fig. 1
Note: Because the Tape End Sensors are inactive, do
not run a tape all the way to the start or the end of the
tape to avoid tape damage.
1-5-1
H9400PFS

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