CDR-3250/80 TECHNICAL MANUAL
Issue 2.2
5-7
Is Audio
Output Present?
Normal
Operation
Yes
No
Bite Test
Pass?
Yes
No
Replace Synthesizer
Module
Yes
No
Replace Digital
Module
Yes
Is the 3rd IF Signal
at E-1 of the Digital
Module Present?
Yes
No
No
Replace RF
Analog Module
Does Front Panel
Audio Meter Indicate
0+/- 3 dB?
Does the RF Level
Meter Indicate
-20 +/- 6 dB?
Set receiver to CW mode
at 12.345 MHz, AGC on.
Set signal generator for
-20 dBm at 12.345 MHz.
No modulation.
Figure 5-1 Signal Tracing Flow Chart
Message
Meaning
Action To Take
GPIB: Ready to Talk But Not
Addressed
IEEE-488 external remote
controller did not send address
within allotted time.
1. Check remote controller
2. Replace Digital Module.
3. Replace Remote Connector board.
GPIB: Got Talk Addr But No
Handshake
IEEE-488 external remote
controller sent the correct
address but did not take data
from bus in allotted time.
1. Check remote controller
2. Replace Digital Module.
3. Replace Remote Connector board.
Illegal Bus Address for Bus
Type
Configured receiver bus address
out of limit.
1. Check CONFIG address using front panel.
Limits = 000 - 254 serial bus, 00 - 30 IEEE-488 bus.
Courtesy of http://BlackRadios.terryo.org
