Sony DNW-A100 Maintenance Manual page 191

5-1-3. L Cassette Position and S Cassette Position
2. S Cassette Position
S cassette position means that the reel tables are in the position of S cassette tape.
There are two ways of putting the reel tables into the S cassette position without
installing the cassette compartment.
Method 1: Press the switch S100 (F-1/side A) on the SS-63 board under power-on
state.
Method 2: Turn the drive gear in the direction of the arrow D.
T reel table
S reel table
D
Drive gear
S Cassette Position
5-7
DNW-A100/A50/A45
DNW-A100P/A50P/A45P