NAC 52 - Significant Changes by S/N

Posted by: Adam Meredith on 04 April 2006

Major Production Changes in NAC 52 Production History.

*** We cannot economically carry out the "Unity Gain" modification on early (pre S/N 79143 ) 52s.

RC5 Remote Control Operation
From May 1992 (S/N 78817)

*** Main Board Revision 3 (latest)
From Oct 1992 (S/N 80965) links fitted in place of link boards.

Pots 7 (Volume & Balance)
From Nov 1996 - To Nov 1997 (S/N 126147 - S/N 137809)

*** Pots 8 (Volume & Balance)
From Dec 1997 - To May 2003 (S/N 138507 - S/N 195336 End of Production)

Logic Board PIC Control issue 7
Small extra functionality with Flash Remote From Dec 1998 (S/N 149934)

Owners of 52 with pots earlier than Pots 7 (S/N 126147) could benefit from an upgrade to pots 8.

We change the number of tie wraps applied to wiring looms. This is a simple and worthwhile modification.

The last price we had for the control board replacement was around 1,200 and we did not recommend it. We now do not offer this.

 

 

POTS label (7)

 

 

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