1-2 (No.YA179B)
SECTION 3
DISASSEMBLY
3.1
DISASSEMBLY PROCEDURE
3.1.1 CAUTION ON REMOVING THE LCD PANEL UNIT
The LCD PANEL is fixed to the FRONT PANEL (at the back side)
by using double-side adhesive tapes. To remove the LCD
PANEL UNIT, remove the adhesive tape on the FRONT PANEL
slowly.
3.1.2 REMOVING THE CONTROL PWB (Fig.1)
• Remove the STAND.
• Remove the REAR COVER.
• Remove the LCD PANEL UNIT.
(1) Remove the 2 screws
[A]
, then remove the CONTROL
PWB COVER.
(2) Disconnect the connector [
CN4
] / [
CN5
] from the
CONTROL PWB .
(3) Remove the 2 screws
[B]
, then remove the CONTROL
PWB.
3.1.3 REMOVING THE INVERTER PWB (Fig.1)
• Remove the STAND.
• Remove the REAR COVER.
• Remove the LCD PANEL UNIT.
(1) Remove the 3 screws
[C]
, then remove the INVERTER
PWB COVER.
(2) Disconnect the connector [
CN6
] / [
CN8
] / [
CN9
] / [
CN10
] /
[
CN11
] / [
CN12
] / [
CN13
] / [
CN14
] from the INVERTER
PWB (HOT SIDE).
(3) Remove the 3 screws
[D]
, then remove the INVERTER
PWB (HOT SIDE).
(4) Remove the 6 screws
[E]
, then remove the INVERTER
PWB (GND SIDE).
(5) Disconnect the connector [
CN15
] / [
CN16
] / [
CN17
] /
[
CN18
] / [
CN19
] / [
CN20
] / [
CN21
] from the INVERTER
PWB (GND SIDE).
3.1.4 REMOVING THE LAMP UINT (Fig.1)
< SYMPTOMS OF DEFECTED LUMP UNIT >
When one of the LAMP UNIT pair (2 LAMPS) die and the
power is supplied, the screen image appears just for a second
then disappears.
• Remove the STAND.
• Remove the REAR COVER.
• Remove the LCD PANEL UNIT.
• Remove the CONTROL PWB.
(1) Remove the FERRITE CORE.
CAUTION:
Carry out the procedure with extra care as the FERRITE
CORE is affixed with double-side adhesive tapes and it
may break if extra force is applied.
(2) Remove the 4 screws
[F]
, the 8 screws
[G]
and the 8
screws
[H]
, then remove the PANEL FRAME.
(3) Remove the 6 screws
[J]
, then remove the LAMP
HOLDER.
(4) Remove the LAMP CLIP, then remove the LAMP UINT.
CAUTION ON EXCHAGING THE LAMP UINT
• LAMP UINT is supplied as a pair. After a long period of use,
exchanging only died LAMP may cause the uneven
brightness on the screen as the exchanged LAMP is the
brightest of all. Change all 7 pairs of the LAMP UINT when
exchange is required.
• If the screws that are not specified in this section are
removed, the LCD PANEL will be removed and it cannot be
reassembled.
Double-side adhesive tapes
Double-side adhesive tapes
LCD PANEL UNIT
FRONT PANEL
Summary of Contents for LT-26X575/KA
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