Allenheath GR1 SERVICE MANUAL Manuel d'utilisateur télécharger pdf (Page 29)

ALLEN & HEATH

Section C - 2

R1SM1

TECHNICAL BULLETIN

Page:

Date:

Issue No.

Authorised:

Attention Service Departments

of:

File with GR1 Service Manual

Title:

REF.

GR1_01

25-11-94

I Mc B

ISSUE 3 PCB MODIFICATIONS

The following applies to all GR1 units with Issue 3 PCBs (AG2041 Issue 3).

1) GR1 PCB Issue 3

The issue 3 version of the GR1 PCB (AG2041 Issue 3) has a number of minor modifications.

These are:

i: SYS-LINK OUT L and M are swopped. This is corrected by crossing over two resistors

R643 and R645.

ii: The meter PCB is too far back from the front panel. This is corrected by spacing the

PCB 1.6mm forward on the connector pins.

iii: The MONO and PHONES level controls are too far back from the front panel. This

is corrected by placing washers over the control shafts.

iv: The text legend on link J22 is in the wrong position. The text should be moved one

position to the right.

1 2 3

should be

All of these errors have been corrected for the issue 4 version of the PCB.

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Allenheath GR1 SERVICE MANUAL Manuel d'utilisateur Page 29