JVC GZ-HD300AEK Service Manual page 17

3.2.3 Assembly/Disambly of [17] OP BLOCK ASSY/CMOS BOARD ASSY
Precautions
(1) Be careful in handling the LENS components.
Pay special attention to the surfaces to protect them from
stains, dust, or scratches.
If the surfaces are soiled with finger prints or other stains,
wipe them off with silicon paper, clean chamois leather,
or recommended cleaning cloth.
Disassembly of OP BLOCK ASSY / CMOS BOARD ASSY
(1) Remove the screw (1), and then remove the
SHIELD(CMOS).
NOTE17a:
When reMmoving the SHIELD(CMOS), be careful in
handling as the SHIELD(CMOS) or CMOS BOARD
ASSY may be removed together with the HEAT
SHEET attached.
(2) Remove the 2 screws (2,3), and then remove the CMOS
FRAME ASSY.
NOTE17b:
When removing the CMOS FRAME ASSY, be careful
in handling as the CMOS FRAME ASSY may be re-
moved together with the SHEET attached.
SD17b
7
(S17b)
6
(S17b)
ZOOM MOTOR
UNIT
9
(S17b)
10
(S17b)
8
(S17b)
NOTE17d
AUTO IRIS UNIT
5
(S17b)
4
(S17b)
FOCUS MOTOR
UNIT
OP BLOCK ASSY
NOTE17c:
The CMOS BOARD ASSY is included in CMOS
FRAME ASSY.
Replace the CMOS BOARD ASSY as a CMOS
FRAME ASSY, not as a single part replacement.
Assembly of OP BLOCK ASSY / CMOS BOARD ASSY
(1) The SHEET is set in the OP BLOCK ASSY.
(2) Attach the CMOS FRAME ASSY first,so that the SHEET
stays in place, and tighten with the 2 screws (2,3).
(3) Attach the SHIELD(CMOS) first, and tighten with the
screw (1).
Replacement of service repair parts
The service repair parts for the OP BLOCK ASSY are as listed below.
When replacing parts, be careful not to cut the FPCs or dam-
age any parts by soldering (excessive heat).
(1) FOCUS MOTOR UNIT
(2) ZOOM MOTOR UNIT
(3) AUTO IRIS UNIT
NOTE 17d:
When replacing the FOCUS MOTOR UNIT or the ZOOM
MOTOR UNIT, solder the FPC at a space of about 0.1
mm above the terminal pin.
NOTE 17e:
The AUTO IRIS UNIT includes the FPC ASSY and two sensors.
SHIELD(CMOS)
NOTE17a
HEAT SHEET
NOTE17c
CMOS FRAME ASSY
CMOS BOARD ASSY
is contained.
NOTE17b
SHEET
Fig.3-2-23
1
(S17a)
2
(S17b)
3
(S17b)
OP BLOCK ASSY
0.078N m (0.8kgf cm)
0.147 N m (1.5kgf cm)
(No.YF307<Rev.003>)1-17