CX5200 Field Service Manual
37
NOTE: Figure 3-6 shows a sample Pokey Adjust screen. The values on your
screen may differ from those shown in Figure 3-6.
POKEY SOFTFIRE TEST
1.
Connect the oscilloscope to pin 16 of A7 (1V/div.; 10ms/div.).
2.
Insert the controller into port 1.
3.
Press key 5 followed by START.
4.
Press the top fire button (softfire).
5.
A 5V pp square wave signal should appear (Fig. 3-7). If it does not, proceed
to the SOFTFIRE TROUBLESHOOTING FLOWCHART, page 64.
6.
Unplug the controller from port and plug it into next port.
7.
Repeat the fourth and fifth steps for port 2, 3 and 4.
Fig. 3-7 Softfire signal.
ERROR SUMMARY
Errors during the RAM, PORT, and verify OS ROM Test are displayed on the
matrix shown in Figure 3-5.
Error # (Table 3-1)
Number of failures
Number of tests
(max 99)
Figure 3-8. Error Summary Screen
Summary of Contents for CX 5200
Page 1: ......
Page 17: ...CX5200 Field Service Manual 17 Figure 2 1 4 Port 5200 CA018087 Motherboard Silkscreen ...
Page 18: ...CX5200 Field Service Manual 18 Figure 2 2 4 Port 5200 CA018087 Motherboard Schematic Part 1 ...
Page 19: ...CX5200 Field Service Manual 19 Figure 2 3 4 Port 5200 CA018087 Motherboard Schematic Part 3 ...
Page 20: ...CX5200 Field Service Manual 20 Figure 2 4 4 Port 5200 CA018087 Motherboard Schematic Part 3 ...
Page 21: ...CX5200 Field Service Manual 21 Figure 2 5 4 Port 5200 CA020108 Motherboard Silkscreen ...
Page 22: ...CX5200 Field Service Manual 22 Figure 2 6 4 Port 5200 CA020108 Motherboard Schematic Part1 ...
Page 23: ...CX5200 Field Service Manual 23 Figure 2 7 4 Port 5200 CA020108 Motherboard Schematic Part2 ...
Page 24: ...CX5200 Field Service Manual 24 Figure 2 8 4 Port 5200 CA020108 Motherboard Schematic Part 3 ...
Page 25: ...CX5200 Field Service Manual 25 Figure 2 9 2 Port 5200 CA021374 Motherboard Silkscreen ...
Page 26: ...CX5200 Field Service Manual 26 Figure 2 10 2 Port 5200 CA021374 Motherboard Schematic Part 1 ...
Page 27: ...CX5200 Field Service Manual 27 Figure 2 11 2 Port 5200 CA021374 Motherboard Schematic Part 2 ...
Page 28: ...CX5200 Field Service Manual 28 Figure 2 12 2 Port 5200 CA021374 Motherboard Schematic Part 3 ...
Page 29: ...CX5200 Field Service Manual 29 Figure 2 13 Trakball Silkscreen ...
Page 30: ...CX5200 Field Service Manual 30 Figure 2 14 Trakball Schematic Part1 ...
Page 31: ...CX5200 Field Service Manual 31 Figure 2 15 Trakball Schematic Part 2 ...
Page 97: ...CX5200 Field Service Manual 97 ...
Page 98: ...CX5200 Field Service Manual 98 ...
Page 99: ...CX5200 Field Service Manual 99 ...
Page 100: ...CX5200 Field Service Manual 100 ...
Page 101: ...CX5200 Field Service Manual 101 ...