GV60 TROUBLESHOOTING MANUAL
RESPONDING TO ALARMS
PAGE 4.1.78
VERSION 1.0 2018-01-01
1.
Turn off (disable) and lock out the transmitter’s ac power source, and UPS source (to LVPS), if
applicable.
2.
Identify the suspect module control/interface PWB, using the associated transmitter alarms, noting
there are six [A3 (Rack 1), A18 (Rack 2), A34 (Rack 3) for Cabinet A; A103 (Rack 4), A118 (Rack 5)
and A134 (Rack 6) for Cabinet B]. Remove the transmitter’s appropriate upper, rear panel and open
the front door.
3.
From the front of the transmitter, remove the RF power modules that are mated with the suspect
module control/interface PWB.
4.
Disconnect the mating connectors from the suspect module control/interface PWB.
5.
Remove 14 sets of M3 nuts and washers that secure the module control/interface PWB to the
transmitter. Remove eight M3 screws that connect the PWB’s edge-card connectors to the
transmitter. Pull out the module control/interface PWB.
6.
Obtain a replacement module control/interface PWB (Nautel Part # NAPC158B) and install it by
reversing the instructions in
through
.
7.
From the rear of the transmitter, set DIP switch S1 on the NAPC158B as follows:
8.
Re-install the RF power modules.
9.
Enable and turn on ac power to the transmitter.
10. Ensure new PWB has the same software as the original, and if necessary, perform a software
upgrade. Refer to the Operations and Maintenance manual for instructions.
S1 Position
A134S1
Setting
(Rack 6)
A118S1
Setting
(Rack 5)
A103S1
Setting
(Rack 4)
A34S1
Setting
(Rack 3)
A18S1
Setting
(Rack 2)
A3S1
Setting
(Rack 1)
6
OFF (right)
OFF (right)
OFF (right)
OFF (right)
OFF (right)
OFF (right)
5 (F BTLDR)
OFF (right)
OFF (right)
OFF (right)
OFF (right)
OFF (right)
OFF (right)
4 (RS485 TERM) ON (left)
OFF (right)
OFF (right)
ON (left)
OFF (right)
OFF (right)
3 (ADDR 1)
ON (left)
OFF (right)
ON (left)
OFF (right)
ON (left)
OFF (right)
2 (ADDR 2)
OFF (right)
OFF (right)
ON (left)
ON (left)
OFF (right)
OFF (right)
1 (ADDR 3)
ON (left)
ON (left)
OFF (right)
OFF (right)
OFF (right)
OFF (right)
Summary of Contents for GV60
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Page 8: ...GV60 TROUBLESHOOTING MANUAL PAGE 4 VIII VERSION 1 0 2018 01 01 ...
Page 102: ...GV60 TROUBLESHOOTING MANUAL PARTS LISTS PAGE 4 2 12 VERSION 1 0 2018 01 01 ...
Page 463: ...VERSION 1 0 2018 01 01 MD 17 Figure MD 17 NAPA31C Power Amplifier PWB Q1 ...
Page 475: ...GV60 TROUBLESHOOTING MANUAL LIST OF TERMS PAGE 4 6 2 VERSION 1 0 2018 01 01 ...
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