Disassembly; Cabinet Disassembly Instructions; Disassembly Flowchart; Disassembly Method - Hitachi DV-P755U Service Manual

4

DISASSEMBLY

4-1 CABINET DISASSEMBLY INSTRUCTIONS

4-1-1 Disassembly Flowchart

This flowchart indicates the disassembly steps to gain
access to item(s) to be serviced. When reassembling,
follow the steps in reverse order. Bend, route, and
dress the cables as they were originally.
[1] Top Case
[2] Front Assembly
[3] Reinforce Plate
[4] DVD Main CBA
[5] DVD Mechanism

4-1-2 Disassembly Method

ID/
Loc. Part
Fig.
No.
No.
[1] Top Case D1
Front
[2] D2
Assembly
Reinforce
[3] D3
Plate
DVD Main
[4] D4
CBA
DVD D4
[5]
Mechanism D5
[6] AV CBA D6
Function
[7] D6
CBA
[6] AV CBA
[7] Function CBA
Removal
Remove/*Unhook/
Unlock/Release/ Note
Unplug/Desolder
3(S-1)
*4(L-1), *3(L-2),
*3(L-3)
2(S-2)
(S-3A), (S-3B),
*CN201, *CN301,
*CN401, *CN601,
FCC Cover
4(S-4) 2, 3
(S-5), 4(S-6), *2(L-4)
*CN2001
About tightening screws
When tightening screws, tighten them with the
following torque.
Screws
(S-1), (S-2), (S-3A),
(S-4), (S-5), (S-6)
(S-3B)
Reference Notes
1. CAUTION 1: Locking Tabs (L-1), (L-2) and (L-3)
are fragile. Be careful not to break them.
1) Release four Locking Tabs (L-1). Then, release
three Locking Tabs (L-2).
2) Release three Locking Tabs (L-3). Then
remove the Front Assembly.
2. CAUTION 2: Electrostatic breakdown of the laser
diode in the optical system block may occur as a
potential difference caused by electrostatic charge
accumulated on cloth, human body etc, during
unpacking or repair work.
To avoid damage of pickup follow next procedures.
1) Short the three short lands of FPC cable with
solder before removing the FFC cable (CN201)
---
from it. If you disconnect the FFC cable
(CN201), the laser diode of pickup will be
1
destroyed. (Fig. D4)
2) Disconnect Connectors (CN301), (CN401) and
---
(CN601). Remove two Screws (S-3A) and
(S-3B) and lift the DVD Main CBA.
(Fig. D4)
2
3. CAUTION 3: When reassembling, confirm the
FFC cable (CN201) is connected completely. Then
remove the solder from the three short lands of
FPC cable. (Fig. D4)
---
---
4-1
Torque
0.45 ± 0.05 N·m
0.38 ± 0.04 N·m