JVC XV-S40BK Service Manual page 20

XV-S40BK/XV-S42SL/XV-S45GD
XV-S30BK/XV-E100SL
<Adjustment preparation>
1.The mechanism assembly is made in the state from the main body from which is detached referring to the
disassembly method.
2.Three studs are installed in the mechanism assembly respectively.
3.The servo control board is removed from the mechanism assembly, and puts into the state set up as shown
in figure. (Each wire connected by the servo control board this time leaves the connection maintained.)
Between shaft and hook of mechanism assembly of figure Board is put.
4.The extension cord is inserted in the connector of the assistance board respectively.
The main board is connected with the servo control board as shown in figure.
Mechanism
assembly
Extension
cord
Stud
Main board
Assistance
board
<Adjustment>
1.Puts into the state to display the jitter value on the FL display referring to "Display of the jitter value".
2.The adjustment screw under the traverse mechanism is turned with hex wrench, and matches so that the
jitter value displayed on the FL display may become "maximum" value.
Adjustment screw a
1-20
Servo control board
Shaft & hook
Stud
Assistance
Extension
board
cord
Adjustment screw b
Adjustment
screw c
Assistance
Shaft & hook
board
Extension
Assistance
cord
board
<POINT>
1.Turns in the forward or the opposite direction,
and makes to the position where the jitter value
is good the half rotation of adjustment screw a
and b(180 degrees) respectively.
2.Afterwards, adjustment screw b and c are turned
in the same way, and makes to the best position.
Servo control board
Assistance
Extension
board
cord