
XR12 Troubleshooting Manual
Responding to alarms
Issue 3.0 2009-07-28
Page 1-9
Responding to alarms
PM fault
A
PM Fault
indicates a failure in at least one RF power module.
1. Select the
Meters
GUI page to view the forward power on the front panel
Diagnostic
Display
. Record the forward power reading. See
“Navigating from page to page” on page 2-6
XR12 Operations and Maintenance Manual
.
2. If the forward power reading in
is less than the preset level, one or more RF power
modules are defective. Proceed to
“RF power module fault validation”
3. If the forward power reading in
is normal press the
Status
button on the GUI to
check for other alarms that may have triggered the RF power module alarm. Press and
release the
Reset
button on the GUI to reset the power modules.
RF power module fault validation
Follow the procedure below to identify and isolate a defective RF power module, and verify the
nature of the defect.
1. Check the
Alarm
LEDs on the RF power modules’ front panels and note which RF power
module indicates a fault (
Alarm
LED is on). Record which RF power module is displaying an
alarm and which
Alarm
LEDs are on.
2. If no
Alarm
LEDs on the RF power modules are on, reset the RF power modules by
pressing the
Reset
button on the GUI. See
“Navigating from page to page” on page 2-6
of
the
XR12 Operations and Maintenance Manual
. If the
Alarm
does not reset – or if it returns –
remove the RF power module for troubleshooting. See
“Removing an RF power module” on
.
RF Amplifier
See
NOTE:
A defective RF power module can be removed for repair, without turning off the transmitter, as
described in
“Removing an RF power module” on page 1-21
. The transmitter can be operated
at a reduced output power level with an RF power module removed.
Module
Replacement Procedure
Содержание XR12
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Страница 100: ...XR12 Troubleshooting Manual Detailed Circuit Descriptions Page 2 32 Issue 3 0 2009 07 28...
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Страница 214: ...XR12 Troubleshooting Manual Reading Electrical Schematics Page 5 6 Issue 3 0 2009 07 28...
Страница 223: ...Issue 3 1 2014 05 07 SD 9 Figure SD 9 NAPX05E 02 Dynamic Carrier Control PWB Sheet 1of 2...
Страница 224: ...Issue 3 1 2014 05 07 SD 10 Figure SD 10 NAPX05E 02 Dynamic Carrier Control PWB Sheet 2 of 2...
Страница 233: ...Issue 3 1 2014 05 07 SD 19 Figure SD 19 NAP34A RF Power Module Overall Sheet 1 of 2...
Страница 234: ...Issue 3 1 2014 05 07 SD 20 Figure SD 20 NAP34A RF Power Module Modulator Stage Sheet 2 of 2...
Страница 235: ...Issue 3 1 2014 05 07 SD 21 Figure SD 21 NAPC150A RF Drive Control PWB Sheet 1 of 3...
Страница 236: ...Issue 3 1 2014 05 07 SD 22 Figure SD 22 NAPC150A RF Drive Control PWB Sheet 2 of 3...
Страница 237: ...Issue 3 1 2014 05 07 SD 23 Figure SD 23 NAPC150A RF Drive Control PWB Sheet 3 of 3...
Страница 238: ...Issue 3 1 2014 05 07 SD 24 Figure SD 24 NASM07H Modulator Assembly...
Страница 239: ...Issue 3 1 2014 05 07 SD 25 Figure SD 25 NAA51A 03 RF Amplifier Assembly...
Страница 245: ...Issue 3 1 2014 05 07 SD 31 Figure SD 31 NAPS10C RF Drive Power Supply PWB...
Страница 248: ...Issue 3 0 2009 07 28 MD 1 Figure MD 1 XR12 Transmitter...
Страница 249: ...Issue 3 0 2009 07 28 MD 2 Figure MD 2 NAC113B Control Panel Rear View A1 Control Display PWB A2 DCC PWB optional...
Страница 251: ...Issue 3 0 2009 07 28 MD 4 Figure MD 4 NAPX05E 02 Dynamic Carrier Control PWB optional NAPX05E 01 shown NAPX05E 02...
Страница 257: ...Issue 3 0 2009 07 28 MD 10 Figure MD 10 NAPP02 01A RF Current Probe PWB...
Страница 259: ...Issue 3 0 2009 07 28 MD 12 Figure MD 12 NAFP103 05 Forward Reflected Power Probe A1 DETAIL...
Страница 263: ...Issue 3 0 2009 07 28 MD 16 Figure MD 16 NAPC150A RF Drive Control PWB...
Страница 265: ...Issue 3 0 2009 07 28 MD 18 Figure MD 18 NASM07H Modulator Assembly...
Страница 266: ...Issue 3 0 2009 07 28 MD 19 Figure MD 19 PA Input Output PWB 176 1065 04 and 05...
Страница 267: ...Issue 3 0 2009 07 28 MD 20 Figure MD 20 NAA51A 03 RF Amplifier Assembly...
Страница 268: ...Issue 3 0 2009 07 28 MD 21 Figure MD 21 NAPI47B Modulator Input Output PWB...
Страница 271: ...Issue 3 0 2009 07 28 MD 24 Figure MD 24 Relay Assy 202 7019...
Страница 272: ...Issue 3 0 2009 07 28 MD 25 Figure MD 25 Fan Tray 202 7020 J1 B1 B2...
Страница 273: ...Issue 3 0 2009 07 28 MD 26 Figure MD 26 NAPS10C RF Drive Power Supply 62 V...
Страница 275: ...Issue 3 0 2009 07 28 MD 28 Figure MD 28 Rectifier Assembly 202 7017...
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