JVC LT-32X575 Service Manual download (Page 2 of 4)

1-2 (No.YA180B)

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 [

CN1

] / [

CN2

] / [

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 [

CN5

] / [

CN6

] / [

CN12

] / [

CN13

] /

[

CN14

] / [

CN15

] from the TOP INVERTER

PWB (HOT

SIDE).

(3) Disconnect the connector [

CN3

] / [

CN4

] / [

CN8

] / [

CN9

] /

[

CN10

] / [

CN11

] from the BOTTOM INVERTER

PWB

(HOT SIDE).

(4) Remove the 4 screws

[D]

, then remove the TOP

INVERTER

PWB and BOTTOM INVERTER

PWB (HOT

SIDE).

(5) Remove the 6 screws

[E]

, then remove the INVERTER

PWB (GND SIDE).

(6) Disconnect the connector [

CN7

] / [

CN16

] / [

CN17

] / [

CN18

]

/ [

CN19

] / [

CN20

] / [

CN21

] / [

CN22

] / [

CN23

] 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 4 screws

[G]

, the 4 screws

[H]

and the 4 screws

[J]

, then remove the PANEL FRAME.

(3) Remove the 6 screws

[K]

, 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.

LCD PANEL UNIT

FRONT PANEL