To Verify The Cd-Rom - Agilent Technologies 1680 series Service Manual

Chapter 5: Troubleshooting
Troubleshooting the Agilent 1680A,AD-series
e While the instrument is attempting to save the file to flexible disk,
probe for digital signals on the flexible disk drive connector according
to the following table.
Disk Drive Voltages
Pin
1
3
5
7
9
11
13
15
17
19
21
23
25
7 Repeat steps 1 through 3 above. After the instrument turns off, unplug the
instrument.
8 Replace suspect disk drive if necessary, then reassemble the instrument.

To verify the CD-ROM

The CD-ROM drive itself can be tested using an audio CD. Install CD player-style
headphones in the CD-ROM audio output jack. With the instrument powered on,
insert an audio CD into the CD-ROM drive. If the CD-ROM is operating properly,
it should begin playing the audio CD.
92
Signals Pin No.
+5 V 2
+5 V 4
+5 V 6
NC 8
NC 10
NC 12
NC 14
0 V 16
0 V 18
0 V 20
O V 22
0 V 24
0 V 26
Signal
INDEX
DRIVE SELECT
DISK CHANGE
READY
MOTOR ON
DIRECTION SELECT
STEP
WRITE DATA
WRITE GATE
TRACK 00
WRITE PROTECT
READ DATA
SIDE ONE SELECT