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GFP-710 VOLTAGE CONVERSION
115V TO 230V
1. The multivoltage GFP-710 units have a detachable power cord and no rear panel AC outlets.
2. Unplug the unit and remove the top cover.
3. On the AC primary board mounted at the far left of the unit, unsolder the jumper at the 115V
position and move it to the 230V position. Also, check the MOV position and type. Figure 1.
4. Change the rear panel fuse from 1A/250V to 500mA/250V. Also, remove the 1A/250V sticker
above the fuse holder so the 500mA/250V panel writing is visible.
5. Remove the 120V sticker at the far left of the rear panel so the 220-240V writing is visible.
6. Replace top cover and test unit.
Figure 1: 220V Jumper position
230V TO 115V
1. The multivoltage GFP-710 units have a detachable power cord and no rear panel AC outlets.
2. Unplug the unit and remove the top cover.
3. On the AC primary board, mounted at the far left of the unit, unsolder the jumper at the 230V
position and move it to the 115V position. Also, check the MOV position and type. Figure 2.
4. Change the rear panel fuse from 500mA/250V to 1A/250V. Also, place a 1A/250V sticker above
the fuse holder to cover the 500mA 250V writing.
5. Place a 120V sticker at the far left of the rear panel to cover the 220-240V writing.
6. Replace top cover and test unit.
Figure 2: 120V Jumper position
Move jumper here
Move jumper here
6
240V MOV should be here.
Type 12G431K.
Adcom part #:12001615.
120V MOV should be here.
Type 12G241K.
Adcom part #:(12001605).
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