Gfa-5300 Voltage Conversion; Converting From 115Vac To 230Vac; Converting From 230Vac To 115Vac - Adcom GFA-5300 Service Manual

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GFA-5300 VOLTAGE CONVERSION

Certain versions of the GFA-5300 are cabable of operating at multiple voltages.The conversion
described below is for multivoltage versions of the GFA-5300. Multivoltage versions of the GFA-5300
have removable power cords.

Converting from 115VAC to 230VAC

1) With the Unit unplugged, remove the top cover of the GFA-5300.
2) Locate the Power and Standby PCBs at the front of the unit (pictured below).
3) Remove jumpers J201, J202, J204 and J205.
4) Add jumpers J203 and J206.
5) Replace the rear panel 6A main fuse with a 3A fuse.
6) Add sticker to back of unit indicating new operating voltage and fuse rating.
7) Replace top cover and test on 230VAC source.

Converting from 230VAC to 115VAC

1) With the unit unplugged, remove the top cover of the GFA-5300.
2) Locate the Power and Standby PCBs at the front of the unit (pictured below).
3) Remove jumpers J203 and J206.
4) Add jumpers J201, J202, J204 and J205.
5) Replace the rear panel 3A main fuse with a 6A fuse.
6) Add sticker to back of unit indicating new operating voltage and fuse rating.
7) Replace top cover and test on 115VAC source.
J203
J202
J206
J205
J204
Figure 1 - GFA-5300 Power and Standby PCBs showing J201 - J206
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