1-5-1
H9740PFS
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 TP501 (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.
PREPARATION FOR SERVICING
Q504
Q503
TP501 S-INH
Fig. 1
Summary of Contents for DV-NC100S
Page 48: ...1 12 3 1 12 4 H9740SCM1 Main 1 9 Schematic Diagram VCR Section ...
Page 50: ...Main 3 9 Schematic Diagram VCR Section 1 12 7 1 12 8 H9740SCM3 ...
Page 51: ...Main 4 9 Schematic Diagram VCR Section 1 12 9 1 12 10 H9740SCM4 ...
Page 52: ...1 12 11 1 12 12 H9740SCM5 Main 5 9 Schematic Diagram VCR Section ...
Page 53: ...Main 6 9 Schematic Diagram VCR Section 1 12 13 1 12 14 H9740SCM6 ...
Page 54: ...Main 7 9 DVD Open Close Schematic Diagrams VCR Section 1 12 15 1 12 16 H9740SCM7 ...
Page 55: ...Main 8 9 Schematic Diagram VCR Section 1 12 17 1 12 18 H9740SCM8 ...
Page 56: ...1 12 19 1 12 20 H9740SCM9 Main 9 9 Schematic Diagram VCR Section ...
Page 58: ...Jack A Schematic Diagram 1 12 23 1 12 24 H9740SCJ ...
Page 59: ...AFV Schematic Diagram 1 12 25 1 12 26 H9740SCAFV ...
Page 60: ...1 12 27 1 12 28 H9740SCD1 DVD Main 1 3 Schematic Diagram DVD Section ...
Page 61: ...1 12 29 1 12 30 H9740SCD2 DVD Main 2 3 Schematic Diagram DVD Section ...
Page 69: ...1 12 46 BE5900G04012 1 12 45 DVD MAIN CBA Top View ...
Page 70: ...1 12 47 1 12 48 BE5900G04012 DVD MAIN CBA Bottom View ...