Kramer Electronics TR-1A Instrukcja Użytkownika Pobierz pdf (Strona 12)

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Using the Isolation Transformer

The grounding conditions are set by trial and error. Check all the options to

work out which option best suits your needs

5.2.1 Audio Dipswitches

The dipswitches let you set the grounding conditions, as illustrated in Figure 7

and defined in Table 8 for the audio channels.

Figure 7: IN and OUT Grounding Options

Table 8: Audio Dipswitch Settings

AUDIO LEFT Description AUDIO RIGHT

1 2 3 2 3 4

ON ON ON Audio IN and OUT are grounded to the chassis ON ON ON

ON ON OFF Audio OUT shield is connected to the common ground,

audio IN shield is left open

ON OFF ON

ON OFF ON Audio IN is connected to chassis, audio OUT is grounded

to the shield

OFF ON ON

OFF ON ON Audio IN and OUT are both grounded to the shield ON ON OFF

Figure 8 and Figure 9 show the balanced and unbalanced audio grounding

schematics respectively.

   



Figure 8: Balanced Audio Grounding Schematics

1 In most applications the ground is not connected

2 Only these combinations are applicable. Other dipswitch settings are insignificant

1 2 ... 7 8 9 10 11 12 13 14 15 16

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Kramer Electronics TR-1A Instrukcja Użytkownika Strona 12