Re: IIGS rom3/rom1 board differences

["Jon" <joncco@gmail.com>]

Thanks to all that replied, I don't really know what they did to this
unit, but the phone jack's switches are fine, but 2 traces (not on the
outer layers of the board) are indeed broken.  One is speaker pin 1 to
phone jack 10, and the other phone jack 2 to phone jack 3 (L & R).  The
inductors & resistors in the area look fine and after using wire wrap
wire to reconnect the broken ones, everything is ok again.

David Wilson wrote:
> The output portion of the sound circuitry on the ROM3 board is very
> similar to the ROM0/1. About the only difference I can see on the
> schematic is the merging of inductors L9 and L11 into a single
> multicore L17.