Sony GY-8240UWD Maintenance Manual page 91

2. Unthreading End Mode
Unthreading end mode means that the threading ring rotates clockwise, then stops.
(It is same state as EJECT completion mode.)
There are two methods of putting the unit into the unthreading end mode with the
cassette compartment taken off the unit.
Method 1: In the threading end state activate DIAG mode operating the PC and
execute CH01: Threading Motor Check, then put the unit into the
threading end state. (Refer to Section 5-4-13.)
Method 2: Turn the M gear of the gear box assembly in the direction of the arrow
B with the power turned off.
TG-7
CONFI head
TG-6
Capstan
TG-0
Tape cleaner
Full erase head
GY-8240UWD
GY-8240FC
CTL/TC erase head
CTL/TC head
M gear TG-9
B
TG-2
TG-1 (S tension regulator)
Unthreading End Mode
3-1. General Information for Parts Replacement
TG-3 (Exit guide) TG-8 (T tension regulator)
Pinch roller Slant guide
TG-5 TG-4 (Threading roller)
TG-10
3-5