Sony DXF-20W, Руководство по обслуживанию

Страница: 7 / 36

1-3 (E)
DXF-20W
PTP2.6 x 8
CRT/DY assembly
Lug
VF tube
assembly
PTP2.6 x 8
PTP2 x 6
8. Remove the three screws (two : PTP2.6 x 8, one :
PTP2 x 6), and remove the CRT/DY assembly from
the VF tube assembly. Replace the CRT/DY assembly.
9. Install a new CRT/DY assembly to the VF tube
assembly so that the high-voltage cable comes upper.
10. Connect the high-voltage cable and harnesses by
reversing steps 6 and 7.
11. Arrange the harnesses referring to Section 1-6.
12. Perform electrical alignment referring to Section 2
“Electrical Alignment”.
13. Reinstall the upper chassis by reversing steps 2 and 3.
n
Be careful so that the harnesses are not caught by the
upper chassis.
14. Close the MIC clamp and tighten the MIC clamp
screw.
1-5. Replacing CRT/DY Assembly
1. Loosen the MIC clamp screw to open the MIC clamp.
2. Remove the two screws (K2.6
x
5).
3. Remove the three hexagon cap screws (2.6 x 6) to
detach the upper chassis.
4. Remove the two screws (P2
x
3.5) and remove the PC
board plate.
n
When attaching the PC board plate, be careful of its
orientation (A in the figure above).
5. Cut the binding yarn of the high-voltage cable.
6. Disconnect the high-voltage cable connector.
7. Disconnect the harnesses from the connectors CN4,
CN5, and CN6 on the VF-88 board.
VF-88 board
CRT/DY assembly
High-voltage
cable connector
Harnesses
Binding
yarn
CN4
CN5
CN6
K2.6 x 5
P2
x
3.5
P2 x 3.5
Upper chassis
MIC clamp
PC board plate
A
Hexagon cap screw
Hexagon cap screws