Operator`s manual

MODEL CS 208

Direct Out, Pre-Fader Level Boost

The nominal level of the Insert jack send/Direct out, pre-fader, is -5dBu.

If the Insert jack function has been changed to Direct out, pre-fader, (see AN 2A), the level can be increased 9dB for a

nominal level of +4dBu. (see note 1)

The following components will need to be installed on board A. (These components are not normally installed to con-

serve current consumption.)

U4 TL071 / OP176 J5

• • • 1 Standard Gain

C30,32 47 µ - 25v (SU) • • • 2 (see AN 2A)

A B

C31 100p ceramic, NPO

R65 1k 1% metal film 1/4w • • • 1 Increased Gain

• • • 2

R66,68 10k 1% metal film 1/4w A B

R67 4.99k for +9dB* 1% MF 1/4w

R67 10k for +6dB* 1% MF 1/4w

R69 47 5% / 1% 1/8w

R70 47k 5% / 1% 1/8w

X7,X8 .1µ Ceramic (general purpose)

Move shunt on J5 to position A1.

Note 1:

Insert = Direct out, pre-fader should be selected (A2).

ie: This increase in level should not be used for Inserts as this will increase of the overall gain of the mixer,

raising the minimum gain, & reducing headroom.

Note 2:

This modification should only be necessary for recorders that have +4 dBu inputs only with no gain adjustment.

AN 2B - INPUT CHANNEL OPTIONS

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