Changes
/* GX4000 */ Added 300dpi scans of 3 new boards
{|{{Prettytable|width: 700px; font-size: 2em;}}
|''PCB Top'' ||''PCB Bottom'' || Description
|-
|[[File:GX4000_PCB_Top_(2700-017P-3_MC0123A_K2).jpg|100px]] || [[File:GX4000_PCB_Bottom_(2700-017P-3_MC0123A_K2).jpg|100px]] || '''Board: 2700-017P-3, MC0123A, Copyright 1990, K2'''
|-
|[[File:GX4000_PCB_Top_(2700-017P-3_MC0123B_K3).jpg|100px]] || [[File:GX4000_PCB_Bottom_(2700-017P-3_MC0123B_K3).jpg|100px]] || '''Board: 2700-017P-3, MC0123B, Copyright 1990, K3'''<br>R153 installed (near SCART connector)<br>handmade NR2 (between CPU and PSG)<br>Here is [[Media:Terje GX4000-MC0123B-K3.jpg|another picture]].
|-
|[[File:GX4000_PCB_Top_(2700-017P-3_MC0123B_K3)_NoMod.jpg|100px]] || [[File:GX4000_PCB_Bottom_(2700-017P-3_MC0123B_K3)_NoMod.jpg|100px]] || '''Board: 2700-017P-3, MC0123B, Copyright 1990, K3'''<br>The same board as the above one, but without the modulator.
|-
|[[File:GX4000 PCB Top.jpg|100px|left]] || [[File:GX4000_PCB_Bottom.jpg|100px]] || '''Board: 2700-017P-4, MC0123C, Copyright 1990, K1''' ([[Media:Terje GX4000-MC0123C-K1 unrotated.jpg|other picture]])<br>R153 not installed (near SCART connector)<br>D135-D142 instead of NR2, R1/R2/C2 rearranged (between CPU and PSG)<br>bigger R181 (3 Watts), C32/D180 rearranged (near RGB monitor connector)
|-
|[[File:GX4000_PCB_Top_(2700-017P-4_MC0123C_K2)_NoMod.jpg|100px]] ||[[File:GX4000_PCB_Bottom_(2700-017P-4_MC0123C_K2)_NoMod.jpg|100px]]|| '''Board: 2700-017P-4, MC0123C, Copyright 1990, K2'''<br>The same board as the above one, but without the modulator.
|-
|[[File:GX4000_PCB_Top_(2700-017P-4_MC0123C_K3).jpg|100px]] || [[File:GX4000_PCB_Bottom_(2700-017P-4_MC0123C_K3).jpg|100px]] || '''Board: 2700-017P-4, MC0123C, Copyright 1990, K3'''
|-
|[[File:GX 4000 MC0123C K4 bilgisayarlarim 736001086319 MA.jpg|100px]] || || '''Board: 2700-017P-4, MC0123C, Copyright 1990, K4'''<br>Looks same as above (only the "K4" text near the LED changed).
