1-5-1
E9H11PFS
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.
Q1504
Q1503
TP502
S-INH
Fig. 1
Summary of Contents for ZV420MW8 - DVDr/ VCR Combo
Page 19: ...1 6 6 E9E8ADC Fig D10 19 Deck Pedestal 20 Front Bracket R S 18 S 18 S 18 S 18 S 19 ...
Page 39: ...1 12 3 Main 1 7 Schematic Diagram E9E8ASCM1 ...
Page 41: ...1 12 5 Main 3 7 Schematic Diagram E9E8ASCM3 ...
Page 42: ...1 12 6 Main 4 7 Schematic Diagram E9E8ASCM4 ...
Page 43: ...1 12 7 Main 5 7 Schematic Diagram E9E8ASCM5 ...
Page 44: ...1 12 8 Main 6 7 Schematic Diagram E9E8ASCM6 ...
Page 45: ...1 12 9 Main 7 7 Schematic Diagram E9E8ASCM7 ...
Page 47: ...1 12 11 Front Jack Schematic Diagram E9E8ASCFJ ...
Page 63: ...1 15 3 R4NTI Push close 0 08 V 0 02 s Push Close detection Threshold level ...
