
Chapter 7---Troubleshooting
Figure 7-18 Backplane Diagram (middle section)
The following is a list of pins that would be helpful for troubleshooting purposes.
Low Voltage Power Supply (J8) | High Voltage Power Supply (J7) | ||
Pin # | Signal or Voltage | Pin # | Signal or Voltage |
8 | /LV_ENA | 5 | /HV_OK |
9 | /LV_OK | 8 | +80 V |
10 | +24 V_FANS | 9 | +15 V |
11 | _5.1 V Stdby | 10 | |
12 | +5.1 V | 11 | G1 SUPPLY |
13 | +6.2 V | 12 | /VA_OK |
14 | +15 V | GND |
15
16+80 V
17/COVER_ON
18/FAN_ENA
Arc Lamp Power Supply (9)
Pin # Signal or Voltage
2/LAMP_LIT
3/LAMP_OK
4/LAMP_ENA
5/COVER_ON
1, 6 | GND |
Model 250 Service Manual |