(continued)
005 (continued)
DID THE SYMPTOM CHANGE?
Yes No
006
Go to Step 008.
007
– Check the Media Console cable for continuity. See “Media Console
Cable” on page 5-16 for pin locations.
– Depending on service procedures, replace the keyboard, Media Console
host card, Media Console client card, Media Console cable, or Media
Console.
– If the symptom remains, replace the system board.
008
– Power-off the system unit.
– Disconnect the keyboard cable connector from the system board (Type
2140) or from the Media Console (Type 2142).
– Power-on the system unit.
– Check the voltage at the keyboard cable connector on the system board
or the Media Console as shown in Figure 2-4, after the POST.
Note: Measure voltages with respect to Ground (Pin 3). These
measurements are for the system board (Type 2140) and for the
Media Console keyboard connector (Type 2142).
Pin
1
2
3
4
5
6
Voltage (Vdc)
KBD Data (+5.0)
Not Used
Ground
+5.0
Clock (+5.0)
Not Used
1
6
2
3
4
5
Figure
2-4. Keyboard Connector Voltage Check
(Step 008 continues)
2-40
Summary of Contents for Aptiva 2140
Page 2: ......
Page 8: ...vi...
Page 24: ...xxii...
Page 26: ...xxiv...
Page 128: ...3 14...
Page 132: ...2010 Cover Do not lift the cover too high as the tabs might break 4 4...
Page 134: ...Figure 4 2 3 5 In Cage 4 6...
Page 136: ...JP7 JP6 JP4 J2 J1 Figure 4 4 Console cable removal 4 8...
Page 138: ...Figure 4 7 Removing the console 4 10...
Page 139: ...Figure 4 8 Removing the console bottom plate Figure 4 9 Console spring Repair Information 4 11...
Page 170: ...6 2...
Page 174: ...Assembly 2 Machine Type 2140 System Unit Interior SL A 1 3 4 5 6 2 7 4...
Page 178: ...Assembly 4 Machine Type 2142 System Unit Interior SL A 1 3 4 5 7 6 2 7 8...
Page 181: ...Assembly 5 Diskette Hard Disk Drives and Zip Drive 3 1 4 4 4 2 Parts Catalog 7 11...
Page 185: ...Assembly 7 CD DVD ROM Drive Modem and TV Cards 3 5 1 2 4 6 Parts Catalog 7 15...
Page 196: ...8 4...
Page 206: ...B 8...
Page 211: ......