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.
LCD PANEL UNIT
Double-side adhesive tapes
1-2 (No.YA179B)
SECTION 3
DISASSEMBLY
Double-side adhesive tapes
FRONT PANEL
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.