7-55
HDW-750/750CE V1
Removal
1. Removing the FE/CTL head assembly
(1) Remove the connector CN505 on the MDC-
13 board.
(2) Remove the three precision screws and
remove the FE/CTL head assembly from the
unit.
n
Be careful not to touch the screwdriver against
the video head, drum, erase head, tape guide and
other parts.
Precision screws
P1.4
x
3.5
CN505
MDC-13 board
FE/CTL head
assembly
2. CTL head replacement
(1) Remove soldering from the two wires that are
connected to the head.
(2) Remove the two screws on the rear of the
CTL head and remove the CTL head.
(3) Clean the contact surface and install the new
CTL head with two screws.
The standard tightening torque value :
20
x
10
_
2
N
.
m (2 kgf
.
cm)
(4) Connect the two wires to the printed wiring
board of the CTL head. (Refer to (1) of step 2
of “Removal”.)
n
Never make mistake of colors and connec-
tions of the wires when soldering them. Any
mistake results in severe troubles of tape
interchangeability.
PS2
x
5
Red
Gray
CTL head
CTL head
Soldering
7-12. CTL Head Replacement
