1-5-1
H9622PFS
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, connect TP502 (S-INH) to GND. This will stop
the function of Tape Start Sensor, Tape End Sensor
and Reel Sensors. (If these TPs are connected before
plugging in the unit, the function of the sensors will
stay valid.) See 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.
Q504
Q503
TP502
S-INH
Fig. 1
Summary of Contents for DVP620VR/78
Page 12: ...1 6 1 H9622IB OPERATING CONTROLS AND FUNCTIONS ...
Page 13: ...1 6 2 H9622IB ...
Page 14: ...1 6 3 H9622IB ...
Page 15: ...1 6 4 H9622IB ...
Page 16: ...1 6 5 H9622IB ...
Page 17: ...1 6 6 H9622IB ...
Page 73: ...1 19 3 H9622PEX Packing Q U I C K S2 S2 S2 S2 S1 Unit S3 A14 X4 X20 X5 X2 X3 X17 X1 ...
Page 92: ...2 4 9 U29PDA Fig DM16 43 41 42 Slide Plate S 11 L 13 Fig DM17 44 45 Slide ...