JVC GR-D750UC, Service Manual

Page: 16 / 23

1-16 (No.YF173)
3.2.5 ASSEMBLY/DISASSEMBLY OF [11] OP BLOCK ASSMBLY/CCD BOARD ASSEMBLY
z Precautions
(1) Be careful in handling the CCD IMAGE SENSOR, OPTI-
CAL LPF and the LENS components. Pay special atten-
tion not to soil or damage the surfaces., especially with
regard to surface contamination, attached dust or
scratching. If fingerprints are present on the surface they
should be wiped away using either a silicon paper, clean
chamois or the cleaning cloth.
(2) The CCD IMAGE SENSOR may have been shipped with
a protective sheet attached to the transmitting glass.
When replacing the CCD IMAGE SENSOR, do not peel
off this sheet from the new part until immediately before
it is mounted in the OP BLOCK ASSY.
(3) As the CUSHION(OP) protects the OP BLOCK ASSY
from scratches or damages, leave the CUSHION as
long as it does not interfere with the procedure.
z Disassembly of OP BLOCK ASSEMBLY / CCD BOARD AS-
SEMBLY
(1) Unsolder the fourteen soldered points (SD11a) of the
CCD BOARD ASSY.
(2) Remove the two screws (1,2), and then remove the CCD
BOARD ASSY and the CCD BASE ASSY.
NOTE11a:
When removing the CCD BASE ASSY, be careful in
handling as the CCD IMAGE SENSOR may be re-
moved together with the SHEET and the OP LPF at-
tached.
NOTE11\b:
Replace the CCD IMAGE SENSOR as a CCD BASE
ASSY, not as a single part replacement.
z Assembly of OP BLOCK ASSEMBLY / CCD BOARD AS-
SEMBLY
(1) Set the OPTICAL LPF first, and then the SHEET to the
OP BLOCK ASSY.
NOTE11c:
Be careful with the attachment direction of the OP
LPF.
(2) Attach the CCD BASE ASSY first, then the CCD BASE
ASSY so that the SHEET stays in place, and then tighten
with the two screws (1, 2).
(3) Solder the 14 points (SD11a) on the CCD BOARD AS-
SY.
z 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) IRIS MOTOR UNIT
NOTE 13e:
When replacing the FOCUS MOTOR UNIT or the ZOOM
MOTOR UNIT, solder the FPC at a space of about 0.5 mm
above the terminal pin.
NOTE 13f:
The IRIS MOTOR UNIT includes the FPC ASSY and two
sensors.
Fig.3-2-4
NOTE11c
CCD BOARD ASSY
CCD BASE ASSY
SHEET
OPTICAL LPF
CUSHION(OP)
2
(S11a)
SD11
1
(S11a)
3
(S11b)
4
(S11b)
ZOOM MOTOR UNIT
NOTE11d,e
IRIS MOTOR UNIT
NOTE11d,e
SENSOR
SD11b
5
(S11b)
7
(S11b)
8
(S11b)
9
(S11b)
6
(S11b)
NOTE11d,e
FOCUS
MOTOR UNIT
NOTE11a,b
0.147N
࡮
m (1.5kgf
࡮
cm)