Disassembly Procedure; Removing The Slot Panel, Top Cover And Rear Panel; Removing The Signal/Mother/Remote Pw Board; Removing The Chassis Base, Speaker And S Correction Pw Board - JVC DT-V1710CG Service Manual

3.1 DISASSEMBLY PROCEDURE

CAUTION :
• Some parts are active even after the main power switch is
set to OFF.
• Be sure to unplug the power cord from the power outlet before
proceeding with disassembly or assembly of the unit.
3.1.1 REMOVING THE SLOT PANEL, TOP COVER AND
REAR PANEL
(1) Unplug the power cord, remove the six screws [1] and
remove the SLOT PANEL.
(2) Remove the fourteen screws [2] and then the two screws
[3].
(3) Open up the lower part of the TOP COVER slightly. Then
pull the TOP COVER toward the rear and lift to remove it.
(4) Also remove the REAR PANEL.
3.1.2 REMOVING THE BOTTOM COVER
• Remove the SLOT PANEL, TOP COVER and REAR PANEL.
(1) Place the unit so that the side with the SLOT CHASSIS
comes at the bottom.
(2) Remove the six screws [4] and pull the BOTTOM COVER
toward the rear to remove it.
3.1.3 REMOVING THE SIGNAL PW BOARD, MOTHER PW
BOARD AND REMOTE PW BOARD
• Remove the SLOT PANEL, TOP COVER and REAR PANEL.
(1) Disconnect the wire clamps and connectors as required.
(2) Remove the four screws [5] and unplug the SIGNAL PWB
from the connector on the MOTHER PWB.
(3) Remove the two screws [6] and then remove the Joint
Bracket.
(4) Remove the two screws [7] and then remove the SLOT
CHASSIS by lifting it while pushing the claw [C] on the
CHASSIS BASE.
(5) Remove the nine screws [8] and remove the MOTHER
PWB.
(6) Remove the screw [9], the four screwnuts [10] and the
two screwnuts [11], then remove the REMOTE PWB.
3.1.4 REMOVING THE CHASSIS BASE, SPEAKER AND
S. CORRECTION PW BOARD
• Remove the SLOT PANEL, TOP COVER, REAR PANEL and
SLOT CHASSIS.
(1) Disconnect the wire clamps and connectors as required.
(2) Remove the two screws [12] and pull the CHASSIS BASE
toward the front to remove it.
(3) While disengaging the claw [D] on the CHASSIS BASE
that is engaged with the rear of the SPEAKER, lift the
SPEAKER to remove it (see Fig. 2).
(4) Remove the three screws [13] and then remove the PB
BRACKET.
(5) Unplug the S. CORRECTION PWB from the connector
on the MAIN PWB.
SECTION 3
DISASSEMBLY
3.1.5 REMOVING THE CRT AND LED PW BOARD
• Remove the SLOT PANEL, TOP COVER, REAR PANEL,
BOTTOM COVER, SLOT CHASSIS and CHASSIS BASE.
(1) Remove the four screws [14] and remove the SIDE
BRACKETS.
(2) Also remove the CRT.
(3) Remove the two screws [15] and remove the LED PWB.
3.1.6 REMOVING THE FRONT CONTROL PW BOARD AND
FRONT VR PW BOARD
(1) Remove the five screws [16] and remove the CONTROL
BASE.
(2) Disconnect the connectors as required.
(3) Remove the three screws [17] and remove the FRONT
CONTROL PWB.
(4) While slightly lifting the two claws [E] on the CONTROL
BASE, remove the FRONT VR PWB.
3.1.7 DIAGNOSING THE MAIN PW BOARD
• Remove the SLOT PANEL, TOP COVER and REAR PANEL.
(1) Place the unit so that the side with the SLOT CHASSIS
comes at the bottom, and remove the BOTTOM COVER.
(2) Now the diagnosis of the MAIN PWB is possible.
CAUTION :
• The unit is unstable when it is placed on its side so please
be careful that it does not topple over during work.
• Before turning the power on, ensure that the connectors in
cluding the CRT grounding are connected properly.
Before turning the power on, ensure that the spiral wires
(Yellow/Green) and the CRT grounding wires are
connected properly.
Spiral wires
(Yollow/Green)
3.1.8 NOTE CONCERNING WIRE CLAMPING
• Be sure to reconnect the wire clamps that have been
disconnected during the above work.
CAUTION
CRT grounding wire
Black
White
View from the rear of the AC inlet
Black
White
(No. 52152) 1-5