Anritsu MS2665C - Detecting Faulty Module

2-13
2.2.2 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
A02 FRONT BOARD, POWER SUPPLY UNIT
A02 FRONT BOARD, A03 CPU
A05 SCAN/AD, A08 LOCAL-A, A03 CPU
3GHz CONVERTER, A13 MICRO CONVERTER,
21GHz S-ATT, 21GHz YTF/SW, H. MIXER
A08 LOCAL-A, 3GHz CONVERTER
3GHz CONVERTER, A06 IF, A13 MICRO CONVERTER,
21GHz S-ATT, 21GHz YTF/SW, H. MIXER
A06 IF
A05 SCAN/AD
3GHz CONVERTER
A05 SCAN/AD
A0902 TRIG/GATE
A05 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
2.2 Troubleshooting