Chapter 5: Troubleshooting
Power Board Trouble Isolation
82
Table 5-10
Power Board Voltage Checks
Test Point + Test Point - Specification
TN400 (+FANDRIVE) TN400 (-12VFAN) +7 V to + 12.5 V
TN501 Ground +2.5 V ±0.05 V
TN204 Ground -12.0 V ±0.1 V
TN205 Ground +5.0 V +0.1 V -0.02 V
TN201 Ground -5.0 V -0.1 V +0.02 V
TN502 Ground -2.0 V ±0.05 V
TN503 Ground -3.3 V ±0.05 V
TN206 Ground +3.3 V +0.05 V -0.02 V
TN202 Ground -5.2 V -0.1 V +0.02 V
TN500 Ground +2.5 V ±0.01 V
TN200 Ground +12.5 V ±0.1 V
TN203 Ground -6.0 V -0.1 V +0.02 V
J200 pin 3 or 4 Ground + 5.0 V ±0.1 V
TN307 Ground +1.620 V ±0.049 V
TN304 Ground +1.620 V ±0.049 V
TN302 Ground +1.6200 V ±0.0016 V
TN305 Ground +1.6200 V ±0.0016 V
TN306 Ground +1.6200 V ±0.0016 V
TN308 Ground +1.6200 V ±0.0016 V
TN300 Ground +5.0 V ±0.002 V
TN303 Ground +1.62 V ±0.002 V
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