Mitsubishi Electric DD-4030, Service Manual

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1-6-1 E5640DC
CABINET DISASSEMBLY INSTRUCTIONS
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.
2. Disassembly Method
(1): Identification (location) No. of parts in the figures
(2): Name of the part
(3): Figure Number for reference
(4): Identification of parts to be removed, unhooked,
unlocked, released, unplugged, unclamped, or
desoldered.
P=Spring, L=Locking Tab, S=Screw,
CN=Connector
*=Unhook, Unlock, Release, Unplug, or Desolder
e.g. 2(S-2) = two Screws (S-2),
2(L-2) = two Locking Tabs (L-2)
(5): Refer to “Reference Notes.”
Reference Notes
CAUTION 1: Locking Tabs (L-1), (L-2) and (L-3) are
fragile. Be careful not to break them.
1-1. Connect the wall plug to an AC outlet and press
the OPEN/CLOSE button to open the Tray.
1-2. Remove the Tray Panel by releasing two Locking
Tabs (L-1).
1-3. Press the OPEN/CLOSE button again to close
the Tray.
1-4. Press the POWER button to turn the power off.
1-5. Unplug an AC cord.
1-6. Release two Locking Tabs (L-2). Then, release
five Locking Tabs (L-3) (to do this, first release
two Locking Tabs (A) at the side, and then three
Locking Tabs (B) at the bottom.)
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.
2-1. Slide out the pickup unit as shown in Fig. D4.
2-2. Short the three short lands of FPC cable with sol-
der before removing the FFC cable (CN101) from
it. If you disconnect the FFC cable (CN101), the
laser diode of pickup will be destroyed. (Fig. D4)
2-3. Disconnect Connector (CN401). Remove two
Screws (S-3) and lift the DVD Mecha. (Fig. D3)
CAUTION 3: When reassembling, confirm the FFC
cable (CN101) is connected completely. Then remove
the solder from the three short lands of FPC cable.
(Fig. D4)
ID/
LOC.
No.
PART
REMOVAL
Fig.
No.
REMOVE/*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOLDER
Note
[1] Top Cover 1 5(S-1) -
[2]
Front
Assembly
2
*2(L-1), Tray Panel,
*2(L-2), *5(L-3)
1-1
1-2
1-3
1-4
1-5
1-6
[3]
Function
CBA
3 *3(L-4), *CN2001 -
[4]
PCB
Holder
3 2(S-2) -
[5]
DVD
Mecha
3,4
2(S-3), *CN101,
*CN401
2
2-1
2-2
2-3
3
[6] AV CBA 5
(S-4), 5(S-5), 3(S-6),
*CN1001, *CN1601,
*2(L-5)
-
[7]
DVD Main
CBA Unit
5 3(S-7) -
[8]
Rear
Panel
6 3(S-8) -
↓
(1)
↓
(2)
↓
(3)
↓
(4)
↓
(5)
[1] Top Cover
[2] Front Assembly
[5] DVD Mecha
[4] PCB Holder
[3] Function CBA
[7] DVD Main CBA Unit [6] AV CBA
[8] Rear Panel