Sony HDW-750 Maintenance Manual page 328

7-13. FE Head Replacement
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.
2. FE head replacement
(1) Remove soldering from the two wires that are
connected to the FE head.
(2) Remove the screw from the rear of the FE
head and remove the FE head.
(3) Clean the contact surface. Push the new FE
head toward the Head CTL plate assembly as
for as it can go, and fix it with screw.
The standard tightening torque value :
20 x 10 _2
N.m (2 kgf.cm)
(4) Solder the two wires to the printed wiring
boards of the FE head. (Refer to (1) of step 2
of "Removal".)
n
Never make mistake of colors and connec-
tions of the wires when soldering them.
7-58
FE/CTL head
assembly
Cleaning
FE head
FE head
Head CTL
plate assembly
Precision screws
P1.4 x 3.5
MDC-13 board
CN505
Soldering
FE head
Black
PS2 x 5
HDW-750/750CE V1
White