Ametek 933S

Maintenance and Troubleshooting | 6-39
Figure 6-11.
Optical Bench board P300
jumper position vs PMT
balance.
Jumper Positions
P300 P301
1 2 3 4 5 6
Higher PMT
Balance
X X X X X
X X X X
X X X X
X X X X
X X X
X X X
X X X
X X X X
X X
X X X
X X X
X X X
X X X X X
X X X X
X X X X
X X X X
X X X
X X X
X X X
X X
X X X X
X X
X X X
X X
X X X
X X X
X X
X X
Lower PMT
Balance
X X
X X
When changing jumpers, at least one must be present in one of the six
positions at all times.

NOTE