Disassembly - JVC AV-48P777/H Service Manual

3.1 DISASSEMBLY PROCEDURE
CAUTION AT DISASSEMBLY:
• Be sure to perform the SYSTEM SETTEING, at the end of the procedure.
• Make sure that the power cord is disconnected from the outlet.
• Pay special attention not to break or damage the parts.
• When removing each board, remove the connectors as required. Taking notes of the connecting points (connector numbers)
makes service procedure manageable.
• Make sure that there is no bent or stain on the connectors before inserting, and firmly insert the connectors.
3.1.1 REMOVING THE SPEAKER GRILL (Fig.1)
(1) Remove 2 screws [A] from rear side.
(2) Pull out the SPEAKER GRILL bottom to the front, and 4
claws which are fixing the SPEAKER GRILL are removed.
(3) Remove the SPEAKER GRILL.
(4) Remove the other side SPEAKER GRILL in the same
manner.
3.1.2 REMOVING THE SPEAKER (Fig.1)
• Remove the SPEAKER GRILL.
(1) Remove 4 screws [B].
(2) Remove the SPEAKER.
(3) Disconnect the speaker wire from speaker terminal.
(4) Remove the other side SPEAKER in the same manner.
3.1.3 REMOVING THE FRONT PANEL (Fig.1)
• Remove the SPEAKER GRILL.
(1) Remove 4 screws [C].
(2) The FRONT PANEL upper is pull out to the front, and 2
claws which are fixing the FRONT PANEL are removed.
(3) Remove the FRONT PANEL.
3.1.4 REMOVING THE FRONT CONTROL BOX (Fig.1)
• Remove the SPEAKER GRILL.
• Remove the FRONT PANEL.
(1) Remove 5 screws [D].
(2) Remove the FRONT CONTROL BOX.
3.1.5 REMOVING THE FRONT CONTROL PWB (Fig.1)
• Remove the SPEAKER GRILL.
• Remove the FRONT PANEL.
• Remove the FRONT CONTROL BOX.
(1) Remove 2 screws [E].
(2) Remove 3 screws [F] from rear side of FRONT CONTROL
BOX.
(3) Remove the FRONT CONTROL PWB.
1-10 (No.YA455)
SECTION 3

DISASSEMBLY

3.1.6 REMOVING THE SCREEN ASS'Y (Fig.1)
• Remove the SPEAKER GRILL.
• Remove the FRONT PANEL.
• Remove the FRONT CONTROL BOX.
(1) Remove 4 screws [G] attaching the SCREEN ASS'Y.
(2) Remove 10 screws [H] from rear side.
(3) Remove the SCREEN ASS'Y.
NOTE :
• Please place the SCREEN ASS'Y on a flat table without fail.
• Because of the large size, at least 2 persons are
recommended for removal and reassemble.
• Use care not to scratch the screen during work.
• During assembly, be sure to engage the left and right tabs
with the cabinet mounting positions.
• When than supporting the SCREEN ASS'Y, avoid grasping
the top of the screen panel, instead grasp the left and right
areas.
3.1.7 REMOVING THE MIRROR (Fig.1)
• Remove the SPEAKER GRILL
• Remove the FRONT PANEL.
• Remove the FRONT CONTROL BOX.
• Remove the SCREEN ASS'Y.
(1) Remove 9 screws [J] attaching the mirror brackets of the
upper, left and right side.
(2) Raise slightly to disengage of the mirror from the bottom
bracket. (If necessary, loosen the screws attaching the
bottom bracket)
(3) Remove the MIRROR.
NOTE :
• The MIRROR is front coated. Do not touch the front of the
MIRROR.
• At least 2 persons are recommended for removable and
reassemble.