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ALLEN & HEATH GL4 Technical Bulletin
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Summary of Contents for ALLEN & HEATH GL4

  • Page 5 Date: 22 December, 1999 Subject: GL4 Mute Group Lock-Up Due to a change in specification to the BC549 transistors, some production consoles will have these devices fitted reversed on the MONO PCB, AG2005A. These transistors, Q2 and Q14, are part of the power-on reset...
  • Page 7 STEP 2. All pre-fade signal is pre-EQ STEP 1. For Direct out by default. Pre-fade cut link J37 add All pre-fade signal is post-mute by a link at J38 default. To get pre-fade direct out, pre-mute (unaffected by channel mutes) cut J35, add a link at J36...

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