Pioneer PDM-4001 Technical Manual page 118

Mounting standard metal fixtures (PDM-4001)
10) Installation conditions for 4-unit multiple fixture (PDM-4001)
When the rear side is secured tightly to the wall:
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Partition
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10
919
When connecting laterally, make sure to provide partitions on both left and right sides.
When installing in a series side by side, there is no need for a left or right partition.
Installation conditions
PC-9800 (56.4Hz)
PC-9800 (70.1Hz)
VIDEO Machintosh (66.7Hz)
VGA (72.8Hz, 75Hz)
VGA (60Hz)
0~35°C 0~35°C 0~30°C
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