User Manual

PINEAPPLE TECHNOLOGY, INC. IX--PROBLEM SOLVING AND TROUBLESHOOTING
DTXPRO-1.2KU OPERATING AND SERVICE MANUAL
THE INFORMATION PROVIDED HEREIN IS PINEAPPLE TECHNOLOGY INCORPORATED PROPRIETARY INFORMATION AND
CANNOT BE COPIED OR DISTRIBUTED WITHOUT PRIOR AUTHORIZATION
IX - 3
IX - PROBLEM SOLVING AND TROUBLE SHOOTING (Continued)
SHUTDOWN RED indicates that the PA has been "SHUTDOWN". There are two
possible reasons for this:
1. Heat Sink over temperature thermostat has tripped protecting the PA
CHECK: Air inlet filter for possible restrictions to air flow
CHECK: Fan air flow for possible fan fault
CHECK: Room temperature
Note: Heat sink over temperature fault is indicated by the RED alert
light going ON/OFF in cycles varying in duration depending on air
flow. The PA returns to normal operation automatically when the
problem is corrected.
2. Remote Shutdown by external signals coming from other protection
circuits.
CHECK: Transmitter global protection circuits.
ADP500 MONITOR
The ADP500 is a general purpose test instrument used to display PA status and measure
voltage, and current. When combined with the PAS it is possible to measure the current being
drawn by each PA RF Device. The ADP500 is a diagnostic tool for troubleshooting the
transmitter.
With normal operating conditions, all the LED's on the front panel are GREEN. Red LED's could
indicate a fault in the transmitter that requires attention.