CTV41 57
Chapter 3 - Disassembly
Overview
Disassembly of the WAX3 chassis models is relatively straight forward.
The rear cover is removed by locating and screws marked by an arrow.
Most of the screws will be 4mm self-tap (particularly those around the
perimeter of the cover) with a couple of smaller 3mm self-tap and machine
screws in the area where the HDMI and A/V input jacks are located. The
only large machine screws for the rear cover will be attached to the wall
mount brackets.
Once the rear cover is removed, the wall mount brackets may be removed
(even while the unit is mounted to its pedestal) since they are not part of
the panel bracing. This is illustrated in Figure 3-1 During the disassembly
procedures described in this chapter, all references to right and left
pertaining to the wall mount brackets will be made as viewing from the
front of the unit.
For demonstration purposes in this manual the disassembly all the way
to LCD panel removal will be illustrated using a 32” and 46” model. Even
though different boards are used with the various sizes, removal of the
LCD panel is relatively the same. Any connectors that are attached to the
panel (such as LVDS to TCON) or circuit boards attached to the bezel
(IR receiver and function buttons) will need to be unplugged. The main
screws securing the panel are located at the top and bottom of the wall
mount brackets along with 2 to 4 additional screws along the bottom edge
of the chassis. The wall mount brackets will be left intact to provide a
gripping area for the removal. The panel can then be easily lifted out and
transferred to another flat cushioned surface for removal of the circuit
boards and additional hardware to transfer to the new panel.
WARNING! When removing hardware from the old panel to the new
panel, note any machine screws (large 4mm size) that are shorter
than the ones used for the rear cover. These screws will mount
hardware directly to the rear of the panel and are short so as to not
penetrate deep into the panel and damage the polarizer or fluorescent
backlight tubes.
Inverter Board Removal (26 and 32” Models)
Replacement of the inverter board begins with removal of the shield as
shown in Figure 3-2. Once the shield is removed, the power and control
connector is unplugged and the board pulled out from the lamp socket
connectors.
WARNING! Do not, under any circumstances, remove the screws
securing the plastic strip holding the lamp socket connectors! This
is a new design where the ends of the fluorescent backlight tubes
are seated into the connectors. If this plastic strip is moved there is
a high likelihood that one or more of the backlights will be damaged,
requiring replacement of the LCD panel. This warning also applies
to the 40” and 46” models that use a balancer board mounted to the
panel.
To Next Page
Loading...
Need help?
General