Sony DNW-A100 Maintenance Manual page 341

Adjustment after Replacement
. Perform the following adjustments when any tape guide is replaced.
1 Tape running adjustment
(Refer to Section 7-1-2.)
2 Video tracking confirmation
(Refer to Section 7-1-3.)
. Perform the following adjustments when the slant guide is replaced.
1 Slant guide slantness adjustment
(Refer to Section 5-18-2.)
2 Tape running adjustment
(Refer to Section 7-1-2.)
3 Video tracking confirmation
(Refer to Section 7-1-3.)
. Perform the following adjustments when the TG-2 or TG-3 tape guide is replaced.
1 RF switching position adjustment
(Refer to Section 4-2-7 in Maintenance Manual Part 1.)
(A011: RF SWITCHING POS.)
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
5-23. Tape Guide Replacement
5-157