1230 Power Supply
Setting the instrument power configuration
2 of 10
Jun 2001
Electrical
Agilent 6890 Gas Chromatograph Service Manual
Line voltage configuration plug
There is a different line voltage configuration plug on the AC power board for
each power configuration. Each configuration uses three or five jumper wires,
each connecting to two different pins on the plug. The 120 VAC configuration
uses five jumper wires and all other configurations use three jumper wires.
Table 1230-2 Line Voltage Configuration Plugs (P8 on AC board) by Power Option
and Diagram of Pinouts from the Top of the Plug
Ceramic fuses
The two ceramic oven heater fuses on the AC power board (F1, F2) will be
one of two types, depending on the line voltage:
• One for the 120 V power option
• One for all other power options.
These fuses should always be replaced as a pair.
Power option Fuse rating
120 V 20A/250 V (Type F)
200 V-240 V 15A/250 V (Type F)
Jumper locations for power configuration plug
120 VAC 200 VAC 208/220
VAC
230 VAC 240 VAC
Tran sfo rm er 3 ↔ 13 2 ↔ 13 3 ↔ 13 5 ↔ 13 3 ↔ 13
6 ↔ 15 6 ↔ 12 6 ↔ 12 6 ↔ 9 6 ↔ 9
9 ↔ 14
Oven fan 1 ↔ 10 1 ↔ 4 1 ↔ 4 1 ↔ 4 1 ↔ 4
4 ↔ 8
321
654
987
12 11 10
15 14 13
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