Panasonic JB-3300 Technical Manual page 362

6.2 Trouble Shooting Flow Chart
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Problem Remains
the Sameafter
~Replacing with Good
Media?
Media Defective
Problem Remains
the Sameafter
Replacing with Good
Drive?
Controller
Defective
Run the operating system
and check. Record all
diagnostic information on
tracks and sectors as far as
the program permits.
Install Exerciser on FOD
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Power SW
DC SW ON
Drive Select SW
head load SW
ON
Track 0?
Head Road
Operation OK?
Check !tem 4,
Table 6.1.
YES
y
Set Address SW
to Track
Seek
Operation
OK?
Write SW ON
Check Item 5,
Table 6.1.
Write Waveform
on Oscilloscope
OK?
Check Item 6,
Table 6.1.
Write SW OFF
Read Waveform
on Oscilloscope
OK?
NO
OK after NO
head cleaning?
Check item 7,
Table3.1.
YES
FDD online test
Read
Error, CRC
Error?
Check Item 8,
Table 6.1.
Drive
IN USE LED
Lights?
Check Item 9,
Table 6.1.
Write
Protect LED
Lights?
Check Item 10,
Table 6.1.