JVC UX-QD70S Service Manual page 27

3.3 MD mechanism assembly
• Remove the MD mechanism assembly from main body.
(Refer to "Removing the MD mechanism assembly" of main unit.)
3.3.1 Removing he MD servo control board
(See fig.1 and 2)
(1) Remove the card wire from connector
control board, and then remove the flexible wire from con-
nector CN407. (See fig.1)
(2) Remove the wire of head assembly from soldered section
a of MD servo control board. (See fig.1)
(3) Remove the two screws A attaching the MD servo control
board. (See fig.1)
(4) Shift the MD servo control board to direction the arrow,
then remove the MD servo control board from fixing point
b. (See fig.1)
(5) Solder the short land section of the pickup. (See fig.2)
(6) Remove the flexible wire from connector
side of MD servo control board, and then remove the MD
servo control board. (See fig.2)
Caution:
• Please solder to the short land section of a pickup before re-
moving a flexible wire from the connector of a MD servo con-
trol board. If a card wire is removed without soldering, a
pickup may be destroyed by static electricity. (See fig.2)
• At the time of MD servo control board attachment, please re-
move the solder of the short land section of a pickup after at-
taching a flexible wire in a connector CN310. (See fig.2)
CN408 on MD servo
CN310 on bottom
A
Fixing part b
MD servo control board
Fig.1
MD servo control board
Fig.2
A
Soldered
section a
CN408
CN407
Fixing part b
CN310
Pickup
Short land section
(No.MB496)1-27