Sony DNW-A100 Maintenance Manual page 473

. TG-3 and TG-4 height adjustment/slant guide slantness adjustment
. TG-5 Height adjustment (Only when the specification is not satisfied in REV x 10 mode or VAR x –1/30 mode)
<Unthreading end mode>
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
TG-4 TG-3
TG-5 (Threading roller)
Tape-running Adjustment at Tape Leaving Side
7-1-2. Tape-running Check and Adjustment
Slant guide
Securing screw
(PSW3 x 8)
Notch
Adjustment plate
7-13