3-15
3.2.2 Detecting faulty module
The flowchart shows the way to locate the faulty module among them.
[Location of faulty module]
Fuse, A02 FRONT BOARD, POWER SUPPLY UNIT
A03 CPU, TFT LCD MODULE, POWER SUPPLY UNIT
POWER SUPPLY UNIT
A02 FRONT BOARD, A03 CPU
SCAN/AD, LOCAL-SP2, LOCAL-SP1, A03 CPU
RF CONVERTER, 2nd CONVERTER,
Switched Attenuator, Diplexing Bandswitch, YTF, 30GHz H.MIXER
LOCAL-SP2, LOCAL-SP1, RF CONVERTER
RF CONVERTER, IF, 2nd CONVERTER,
Switched Attenuator, Diplexing Bandswitch, YTF, 30GHz H.MIXER
IF
SCAN/AD
RF CONVERTER, Switched Attenuator
SCAN/AD
A0902 TRIG/GATE
SCAN/AD
A03 CPU
A03 CPU
A03 CPU
(Yes)
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
The LCD comes on?
Fan Movement?
Key, Rotary knob come on?
Sweeping?
Trace Displayd When signal input?
Freq Display correct?
Level Display correct?
RBW Setting?
VBW Setting?
Input ATT Setting?
LOG/LIN Setting?
TRIG Setting?
Det mode Setting?
Display mode Setting?
Hardcopy possible?
Memory Backup?
LEDs come on?
POWER ON
Normal
3.2 Troubleshooting
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