First revision of the Mega Drive II / Genesis Model 2 redesign, 1993. Significantly smaller than the Model 1, lost the headphone jack, integrated power, and started the consolidation that eventually merged the YM2612 FM synth and PSG into Sega ASICs. VA0 specifically still uses the discrete YM2612 (or YM3438 in some runs), which is why VA0 audio is generally preferred by purists - later VA revisions (VA1, VA2, VA3...) folded the FM core into an ASIC and changed the audio characteristics audibly.
33pF
100pF
100pF
1000pF
1000pF
100pF
33pF
100pF
5600pF
1000pF
5600pF
1000pF
0.01uF
0.022uF
0.022uF
0.022uF
18pF
0.01uF
180pF
100pF
180pF
0.1uF
0.1uF
0.022uF
0.022uF
0.022uF
0.022uF
0.022uF
0.022uF
0.022uF
0.022uF
0.022uF
0.022uF
0.022uF
0.022uF
0.022uF
0.022uF
0.022uF
0.022uF
0.022uF
0.022uF
0.022uF
5600pF
5600pF
0.022uF
Cap array 33pF x 16
10uF 16V
10uF 16V
10uF 16V
10uF 16V
10uF 16V
10uF 16V
10uF 16V
10uF 16V
10uF 16V
10uF 16V
10uF 16V
220uF 6.3V
10uF 16V
10uF 16V
220uF 6.3V
100uF 10V
47uF 10V
47uF 10V
10uF 16V
10uF 16V
10uF 16V
100uF 10V
47uF 10V
47uF 10V
47uF 10V
47uF 10V
47uF 10V
10uF 16V
10uF 16V
10uF 16V
10uF 16V
CPU MC68HC000FN8
SRAM 32K x 8 MCM51L832AF10
SRAM 32K x 8 MCM51L832AF10
CPU Z80
SRAM 64K MB8464A-90L
FC1004
DRAM 256K MB81461-12
DRAM 256K MB81461-12
Quad Op-amp LM324
Quad Op-amp LM324
RGB Encoder CXA1645M
5V Regulator 7805
120R
2.2K
4.7K
2.2K
1.2K
2.2K
2.2K
10K
10K
10K
10K
10K
150R
1K
10R
150R
1K
47K
51K
15K
47K
51K
15K
47K
47K
75R
75R
4.7K
4.7K
4.7K
4.7K
7.5K
1.2K
2.2K
75R
5.6K
5.6K
5.6K
1K
24K
1K
1.2K
330R
1.2K
1.2K
1.2K
10K
4.7K
4.7K
4.7K
47K
10K
100K
330R
330R
330R
330R
1K
1K
150R
220R
7.5K
10K
10K
330R
330R
6.8K
0R
0R
Resistor array 100R x 4
Resistor array 100R x 4
Resistor array 100R x 2
Resistor array 100R x 4
Resistor array 100R x 4
Resistor array 100R x 4
Resistor array 4.7K x 8
Resistor array 2.2K x 4
Mini DIN 9P TCS7913-43
Expansion port
Edge connector 64P PSB4D32K-7R
D-Sub 9P x 2 UC0082-21
DC Jack EIAJ3