CX5200 Field Service Manual
82
Snowy Screen Troubleshooting (cont.)
D3
Is there +5V on the
output of VR2?
Open Pin 3 VR2 to VCC2,
+5B or +5F
Repair
or
Replace
F
Yes
No
If Pin 3 VR2 short to ground:
Possible short in chips.
Remove chips one-by-one and
turn on unit. If modulation
occurs, bad chip has been
located. If chips are not
shorted, check for possible
capacitors or trace shorted on
boards.
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 ...
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