Diego Checkmate

CRG-Glen·DIEGO-500·KICAD/Checkmate/Diego Checkmate.kicad_pcb

Top view of the Diego Checkmate PCB
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Diego Checkmate is an open source PCB design by CRG-Glen: a 4-layer, 275 × 95 mm board with 126 components (48 distinct parts). It is built around the C90569, 74ALS245, 74LS245, 74LS32 and more.

Turn your A500 into an A2000

Turn your A500 into an A2000 with this sidecar backplane CHECKMATE VERSION NOT YET TESTED - DO NOT BUILD

DIEGO is a Zorro 2 backplane expansion for use on your A500 either as a side car project or within your Checkmate case. Diego gives you an A2000 compatible CO-PROCESSOR slot (side car version only) along with a full set of 5 ZORRO2 slots all made possible by the onboard Bluster IC. Bluster is a remake of the classic A2000 Buster chip by LIV2 although it is a custom version for DIEGO to handle inverted clocks and provide some further functions.

Diego Checkmate, from the project README
From the project README

Built around

Parts list

126 components, 48 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C90569
BLUSTER
U1
2
74ALS245
U2, U7
4
74LS245
U3, U4, U5, U6
1
74LS32
U8
1
MAX16054AZT_T
74LS32
U9
1
74LS08
U10
1
501MLFT
MAX16054
U11
1
74LVC2G14
U14
1
MC79M05
U15
1
Fan 1
M1
1
Fan 2
M2
3
S8050
Q2, Q3, Q4
1
C5173317
A500 side car
CN1
1
C5173320
Zorro 1
CN2
1
C5173320
Zorro 2
CN3
1
C5173320
Zorro 3
CN4
1
C5173320
Zorro 4
CN5
1
C5173320
Zorro 5
CN6
11
1000PF
1000pf
CN7, CN8, CN9, CN10, CN11, CN12, CN13, CN14 +3
1
CONN_01X03_PIN
Conn_01x03_Pin
J1
Show 28 more
QtyPartRefs
1
A2000_CPUSLOT_EDGE_LOGICAL
Conn_01x04
J2
1
Conn_01x02_Pin
J3
1
Power LED
J4
1
Buster
J7
1
CONN_01X01_PIN
Conn_01x01_Pin
J9
1
ATX-24
J10
1
C15957
FerriteBead_Small
FB1
10
0.1UF
0.1uf
C1, C3, C8, C11, C12, C13, C14, C15 +2
6
220UF
220uF
C2, C4, C5, C6, C7, C10
2
220UF
0.1uf
C9, C16
4
0.1UF
0.1uf
C18, C19, C20, C21
1
1UF
47uF
C22
2
100PF
100pf
C25, C26
1
0.1uf
C35
2
1uF
C36, C38
5
47uF
C37, C39, C40, C41, C42
1
220uF
C43
12
1k
R1, R2, R5, R6, R8, R14, R17, R24 +4
1
10k
R3
3
47
R4, R16, R23
4
4.7K
4.7k
R7, R9, R25, R26
1
3.3K
3.3k
R10
3
10K
1k
R11, R12, R13
1
680
1k
R15
5
10K
10k
R18, R19, R20, R21, R22
14
1k
RN1, RN2, RN8, RN9, RN10, RN11, RN12, RN13 +6
4
3.3K
3.3k
RN3, RN4, RN5, RN6
1
4.7K
4.7k
RN7

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