User`s guide

so 15-20 turns of small wire-- like wirewrap wire-- wrapped on a pencil or
screwdriver shaft will make a small coil you can use. Make three coils.
After removing the damaged L2 module, use an Ohm meter to check for a short
to ground at pins 1, 2, and 3. (If, as in the case of a short in a spliced-on KB
cable, you know where the short is/was, you can skip this check.) Eliminate the
short before continuing.
Solder your home-brew coils in place (pin 1 to pin 8 for the first coil,
etc.), put everything together, and your GS should be as good as new.
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012- My ROM-01 GS has an odd postage stamp size circuit
board tacked onto the motherboard near the front edge.
What is the board for?
The circuit on the mini-board is a low-gain 1-transistor amplifier which
seems intended mainly as a buffer/voltage-level shifter between the 'old Apple'
sound output of the Mega Chip and Op Amps which drive the Speaker and Sound
jack.
On the underside of the motherboard, beneath the boardlette, a surface-
mounted resistor (SR1) has been scratched out. Leads from the mini-board run to
SR1's connection points as well as Ground and a +12V supply point near Op Amp
UM12.
The circuit does not appear in the GS 'Hardware Reference ROM-01
schematics; but, it is shown in ROM-03 schematics. Some ROM-01 GS's do not have
the mini board; so, it seems likely that the circuit was included on-
motherboard in later ROM-01's and all ROM-03's. By the way, the circuit was
certainly installed at the time of manufacture and was not part of the standard
ROM-00 to ROM-01 upgrade.
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013- I have 256kB on my 1MB Apple IIgs Memory Expansion
Card. How do I add more memory and set the jumpers?
The standard Apple IIgs 1MB Memory Expansion Card can be usefully
configured for 256kB, 512kB, and 1MB.
For 256kB, the top left 8 sockets (i.e. the left half of the top row)
should be filled. No jumpers should be placed on the pins near the lower right
end of the board.
XXXXXXXX--------
----------------
O O (no Jumpers)
0 0