Pioneer PDP-434CMX Service Manual page 143

5
2
Multi Base Section
Diagnosis of AV I/O Assy
1
Remove the three nuts.
2
Remove the six hexagon head screws.
3
Remove the one screw.
4
Remove the one pin grommet.
5
Remove the AV I/O Assy with the AV I/O I/F Assy.
6
Remove the AV I/O Assy from the AV I/O I/F Assy.
7
Connect the AV I/O Assy to slot of the RGB Assy.
Diagnosis
Note:
The cooling fan may rotate during diagnosis, in the following cases:
• When the rotation speed of the fan has been set to maximum for
Integrator mode
• When the ambient temperature surrounding the temperature
sensor is about 35˚C or higher
Removing Multi Base Section
1
Remove the one screw and two Torque screws.
2
Remove the COMM SLOT Assy.
3
Remove the two Torque screws.
4
Remove the video card (option).
5
Remove the seven screws.
6
Remove the two screws.
7
Disconnect the some connectors at need.
8
Remove the terminal panel.
9
Remove the two screws.
10
Disconnect the some connectors at need.
11
Remove the multi base section.
Note:
Some tiny metal shavings may be released from the paring
screw section when the VIDEO SLOT I/F Assy is detached from
the sheet metal and is reattached to it. Be sure to clear away any
shavings or other foreign matter before reattaching it to the RGB
Assy.
5
6
AV I/O I/F Assy
AV I/O Assy
COMM SLOT Assy
6
1 2
9
PDP-504CMX/1
6
7
AV I/O Assy
3
5
1
2 2 2 1
×2 ×2 ×2 ×2
6
Video card
1
8
5
5
5
5
5
4
1 3
Terminal panel
Multi base section
VIDEO SLOT I/F Assy
11
RGB Assy
7
8
A
4
B
7
C
AV I/O Assy
5
6
5
D
3
9
E
AUDIO AMP Assy
F
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