Platinum Z5 CD, Руководство пользователя, Страница: 179 / 194

888-2408-002 6-27
WARNING: Disconnect primary power prior to servicing.
Troubleshooting
6.11.15 PAC#_-15V, PA Controller PS Fault
This is a critical fault since the affected PA Controller has basically lost its muting
ability if the -15V is lost. When this fault is detected the affected PA Controller will
request that the other PA Controller mute its PAs (XOVER) and switch them out.
This will cause a major system imbalance and the transmitter power will in most
cases go to approximately 33% of nominal power output.
6.11.16 PAC#_J#, Cable Fault
This fault means that one or more cables is connected to the wrong place or an ID
jumper is set wrong. It prevents wiring the transmitter control cables incorrectly.
There are four cables connected to each PA Controller, at J1, J2, J11 and J12. J1 and
J2 connect to the Isolation Boards, while J11 and J12 connect to the Z Planes. The
PA Controller boards have ID jumpers to select the board as PA Controller 1 or PA
Controller 2. The Z Planes have ID jumpers to select whether they are Z Plane A or
Z Plane B. The Isolation Boards also have ID jumpers to select the Z Plane they are
used with. The ID Jumpers are necessary because the two PA Controllers, the two Z
Planes and the two Isolation Boards are the same. Cabling of these boards is critical
because it determines the control distribution (basically which PAs are controlled by
which PA Controller). The ID’s are checked by the PA Controllers. If the PA
Controller does not see the proper ID, the transmitter will be muted and the fault log
will display one of the following depending on which cable is mis-connected (or
disconnected):
•
PAC1_J1 or PAC2_J1
•
PAC1_J2 or PAC2_J2
•
PAC1_J11 or PAC2_J11
•
PAC1_J12 or PAC2_J12