Agilent Technologies 1670G Series Service Manual page 133

Troubleshooting Flowchart 5
CHART 1
5
Do all Sytem Do all Analyzer
Y e s
T e s t s p a s s ? T e s t s p a s s ?
N o
Replac e ac quis ition
board.
Failure of:
- ROM Test
- HP-IB Test
Failure of
- RS-232C Test
- RAM test
- PS2 Test
- Lan Test
R e p l a c e S I M M
R e p l a c e C P U b o a r d .
m e m o r y m o d u l e .
Is the oscilloscope
Y e s
option installed?
Y e s
N o
Do all Oscilloscope
T e s t s p a s s ?
N o
R e p l a c e
oscilloscope board.
Failure of
- Disk Test
Follow disk drive
test in Chapter 5 on
suspect drive.
Signals and voltages
O K ?
N o
Disk drive cable
c o n t i n u i t y O K ?
N o
Troubleshooting
To use the flowcharts
CHART 5
PV Test
Is the pattern
N o
generator option
installed?
Y e s
Do all Pattern
Y e s
Generator Tests pass?
N o
Replace pattern
generator board.
Y e s
Replace disk drive.
Y e s R e p l a c e C P U
board.
Replace disk drive
cable.
N o
Y e s
E N D
5–7