Cabinet Disassembly Instructions - Sylvania 6509DD Service Manual

CABINET DISASSEMBLY INSTRUCTIONS

1. Disassembly Flowchart
This flowchart indicates the disassembly steps for the
cabinet parts, and the CBA in order 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.
Caution !!
When removing the CRT, be sure to discharge the
Anode Lead of the CRT with the CRT Ground Wire
before removing the Anode Cap.
[1] Rear Cabinet
[2] H.V. CBA (with Holder)
[3] Tray Chassis Unit
[4] CRT
[5] Shield Box
[7] DVD
[6] DVD Mechanism
Main
CBA
Unit [8] Main CBA
2. Disassembly Method
ID/
LOC. PART
Fig.
No.
No.
Rear
[1] 1
Cabinet
H.V. CBA
[2] (With 3, 5
Holder)
Tray
[3] Chassis 3, 5 CN1802, CN1801
Unit
[4] CRT 2
[5] Shield Box 3
DVD
[6] 3, 5
Mechanism
DVD Main
[7] 4
CBA Unit
[8] Main CBA 3
H.V./DC
Power
[9] 3
Supply
CBA
↓ ↓ ↓
(1) (2) (3)
[9] H.V./
DC Power
Supply
CBA
REMOVAL
REMOVE/
*UNHOOK/UNLOCK/
Note
RELEASE/UNPLUG/
DESOLDER
4(S-1), 1(S-2), 2(S-3) -
4(S-4), Anode Cap,
CN501, CRT CBA,
1
CN571, WH552,
WH554
-
4(S-5) -
5(S-6) -
3(S-7),CN401,
-
CN601
2-1
2(S-8), CN201,
2-2
CN301 2-3
3
3(S-9) -
3(S-10), Shield Case
Top, Shield Case -
Bottom
↓ ↓
(4) (5)
(1): Order of steps in Procedure. When reassembling,
follow the steps in reverse order.These numbers
are also used as the identification (location) No. of
parts in Figures.
(2): Parts to be removed or installed.
(3): Fig. No. showing Procedure of Part Location.
(4): Identification of part to be removed, unhooked,
unlocked, released, unplugged, unclamped, or
desoldered.
S=Screw, P=Spring, L=Locking Tab, CN=Connec-
tor, *=Unhook, Unlock, Release, Unplug, or
Desolder
2(S-2) = two Screw (S-2)
(5): Refer to the following "Reference Notes in the
Table."
Reference Notes in the Table
Caution !
When removing the CRT, be sure to discharge the
Anode Lead of the CRT with the CRT Ground Wire
before removing the Anode Cap.
CAUTION 1: Discharge the Anode Lead of the CRT
with the CRT Ground Wire before removing the Anode
Cap.
1. Disconnect the following: Anode Cap, CN501, CRT
CBA, CN571, WH552, WH554.
Then remove H.V. CBA (with Holder).
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. Disconnect Connector (CN301). Remove three
Screws (S-7) and lift the DVD Mechanism.
(Fig. 3)
2-2. Slide out the pickup unit as shown in Fig. 4.
2-3. Short the three short lands of FPC cable with sol-
der before removing the FFC cable (CN201) from
it. If you disconnect the FFC cable (CN201), the
laser diode of pickup will be destroyed. (Fig. 4)
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. 4)
1-6-1 TD001DC