Dpr-289A Board - Sony PMW-EX3 Service Manual

Solid-state memory camcorder
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2-2-31. DPR-289A Board

1. Refer to Sections from 2-2-1 to 2-2-3, 2-2-5,
2-2-9, 2-2-13, 2-2-21, 2-2-24, and from 2-2-
28 to 2-2-30, and disassemble the unit up to
"Outside Connector Assembly" removal.
2. Disconnect the HN-326 board connector
(CN1) from the DPR-289A board connector
C.
3. Disconnect the three prism connectors a, b
and d from the corresponding three connec-
tors A, B and D on the DPR-289A board.
4. Disconnect the five harnesses and the flexible
flat cable from the corresponding six connec-
tors E, F, G, H, I and J on the DPR-
289A board.
5. Remove the screw, disengage the DPR-289A
board from the two dowels, and remove the
DPR-289A board in the direction of the
arrow.
6. Remove the three radiation sheets from the
DPR-289A board.
7. Reinstall the removed parts by reversing the
steps of removal.
n
When connecting the coaxial cable with
connector, be careful of the following points:
. Do not insert the connector at a slant angle.
. Check to see that the contacting surface is
free from stain and dust.
. Hold the connector with its contacting
surface facing upward, and check that the
polarity marks are aligned.
2-36
Coaxial cable
with connectors
M2 x 4
(Silver)
Harness
DPR-289A board
C
D
J
A B
H
G
E
F
Coaxial cable
with connectors
DPR-289A
board
Contacting
surface
OK
Insert the cable by holding
the connector.
HN-326 board
Prism connectors
CN1
d
c b
a
I
Flexible flat cable
Radiation
sheets
Polarity marks (
NG
Do not bend
the cable.
Dowels
)
PMW-EX3

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