Tektronix 070-8811-08 Manuel d'utilisateur télécharger pdf (Page 110)

Appendix C: Options

764 Digital Audio Monitor User Manual

Configuring the Output

Qualified service personnel can change the output configuration with

the following procedure:

CAUTION. The 764 contains static-sensitive components. The

following procedure should be performed by qualified technicians

only.

1. Disconnect power and all other connections from the 764 rear

panel and then remove the instrument from its enclosure. The

Analog Line Output circuit board assembly is mounted

horizontally above the audio XLR connectors at the rear of the

chassis. The configuration jumper pins are readily accessible on

the top surface of the board.

2. Identify the jumper configuration in Table 32 that corresponds to

the desired output; add and remove jumpers to/from the jumper

pin pairs to achieve that configuration. Pin pairs J20, J21, J22,

and J23 are provided as a convenient place to “park” unused

jumpers. If you need additional jumpers for the new configura-

tion, take them from J20–J23; if you have extra jumpers after

reconfiguration, put them onto J20–J23.

Table 32: Output configuration jumper locations

Output Jumper configuration AES connector*

Fixed, +24 dBm J914

Variable, to +24 dBm J913

Variable, to 2.0V

RMS

J913

* See configuration procedure step 3.

1 2 ... 105 106 107 108 109 110 111 112 113 114 115 ... 120 121

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Tektronix 070-8811-08 Manuel d'utilisateur Page 110