HARLEQUIN 128 Issue 2B (PDF)




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2

B1

68

PID502

PIR4302

COR21
R21

D2
D4
D5
D3
D1

VCC

74HC174

PIR20 1
COQ3
Q3
BC548

PIR2502

PIR2302 PIR2402

COR23
R23 COR24
R24

18K

3.9K

PIQ301

PID501

PIR2602 PIR2702

VCC

2.2K

COR26
R26

COR27
R27

18K

3.9K

PIR2601 PIR2701

COR28
R28

COR29
R29 COR30
R30

18K

PIR2801

PIR2901 PIR30 1

B

9PIU3109

DD4

PIU3 02

DD5

NLDD4
DD4
NLDD5
DD5

DD2

NLDD6
DD6

B2

DD7

COU33
U33
19
1Q
18
PIU33018 2Q
17
PIU33017
3Q
16
PIU33016 4Q
15
PIU33015 5Q
14
PIU33014
6Q
13
PIU33013 7Q
12
PIU33012 8Q

PIU3502

1D
2D
3D
4D
5D
6D
7D
8D

PIU33019

COU35
U35
19
1Q
18
PIU35018 2Q
17
PIU35017
3Q
16
PIU35016 4Q
15
PIU35015 5Q
14
PIU35014
6Q
13
PIU35013 7Q
12
PIU35012 8Q

2
3
PIU3303
4
PIU3304
5
PIU3305
6
PIU3306
7
PIU3307
8
PIU3308
9
PIU3309

PIU3302

PIU35019

11
CLK PIU33011
1
OC PIU3301

15
2G PIU31015

1D
2D
3D
4D
5D
6D
7D
8D

2
3
PIU3503
PIU35044
5
PIU3505
PIU35066
PIU35077
8
PIU3508
PIU35099

VD0

PIU3502

NLOutLatch
OutLatch

VD1

10
PIU38010

VD2
VD3
NLVCrst
VCrst

VD4

11
PIU38011

VD5
VD6
VD7

11
CLK PIU35011
1
OC PIU3501

PIU3 01

PIU3108

74HC253

VCC

QA
QB
QC
QD
CLK
QE
QF
QG
CLR
QH
QI
QJ
QK
QL

PIU38099

CA0

7

CA1

PIU3807
PIU38066

5
3
PIU3803
PIU38022
4
PIU3804
PIU3801313
PIU3801212
14
PIU38014
PIU3801515
PIU38011

PIU3805

A1
A2
A3
A4
A5
A6
A7
A8

PIU4001818 VA7
PIU4001717 VA6
PIU4001616 VA5

VA0

PIU4001515
PIU4001414
13
PIU40013
PIU4001212
PIU4001111

VA4

VA3

VA3

VA4

VA2

VA5

VA1

VA6

VA0

VA7

VA1
VA2

VA8
VA9
VA10
VA11

PIU40 10
PIU410 6

74HC245
COU41
U41

CA3

VA12
VA13

15PIU41015
G
1PIU4101
A/B

CA4
CA5
CA6
CA7

CA11

CA8

NLCA5
CA5

CA9

VC7

CA10

NLCA6
CA6

2PIU4102
3PIU4103
5PIU4105
6PIU4106
11PIU41011
10PIU41010
14PIU41014
13PIU41013

CA11

NLCA11
CA11

PIU3808

74HC4040
NLCA7
CA7

74HC574

1A
1B
2A
2B
3A
3B
4A
4B

VA14
VA15

1Y
2Y
3Y
4Y

PIU41044

VA8

VRD

7

VA9

VCS

PIU4107

12
PIU8012
11
PIU8011
10
PIU8010
9
PIU809
8
PIU808
7
PIU807
6
PIU806
5
PIU805
27
PIU8027
26
PIU8026
23
PIU8023
25
PIU8025
4
PIU804
28
3
PIU803
31
PIU8031

PIU8028

24
PIU8024
29
PIU8029
22

PIU8022
30
PIU8030

VCC
PIU41099 VA11

PIU34016

COU34
U34
1
1G PIU3201

6
1C0 PIU3206
5
1C1 PIU3205
4
1C2 PIU3204
3
1Y1C3 PIU3203

7PIU3207

DD3
DD0
B0

0 14
PIU3U30A
COU30A
COU30B
COU30C
COU30D

2
B PIU3202
14
A PIU32014

3
PIU3003

PIU30 2

10
2Y2C0 PIU32010
11
2C1 PIU32011
12
2C2 PIU32012
13
2C3 PIU32013

DD6

1 13
PIU34013
2

COU36
U36

A
B
C
D
E
F
G
QH H

SER
SH/LD
CLK
CLK_INH

PIU30 7

74HC86

CLR

9PIU3209

PIU30 1

2
PIU3402

19
PIU36019
18
PIU36018
17
PIU36017
16
PIU36016
15
PIU36015
14
PIU36014
13
PIU36013
12
PIU36012

3

PIU3403
4
PIU3404
5
PIU3405

10

PIU34010
11
PIU34011
12
PIU34012

14

PIU34014

PIU30 5

5

VD0

3

VD1

PIU3603
PIU36044
PIU36055

2PIU4202
3PIU4203
5PIU4205
6PIU4206
11PIU42011
10PIU42010
14PIU42014
13PIU42013

VD2
NLVC7
VC7

VD3

6

VD4

PIU3606
PIU36077
PIU36088

VD5
VD6

9

VD7

PIU3609

11

PIU36011
PIU36011

9
PIU3709
7
PIU3707

PIU29044

6

PIU3706
5
PIU3705

PIU2906

5
PIU2905

6

74HC08
NLDD7
DD7

74HC86

3
PIU3703
2
PIU3702
4
PIU3704
13
PIU37013
12
PIU37012
14
PIU37014
15
PIU37015
1
PIU3701

2Y
3Y
4Y

PIU42044 VA12

PIU30 9

PIU30 10

10

PIR601
COR6
R6

1
VD0 PIU4701
2
VD1 PIU4702

17 VD3
PIU8017
18 VD4
PIU8018
19
PIU8019VD5
20 VD6
PIU8020
21 VD7
PIU8021

4
VD3 PIU4704
5
VD4 PIU4705

3
VD2 PIU4703
6
VD5 PIU4706
7
VD6 PIU4707
8
VD7 PIU4708

2

VA7

PIU4302
3
PIU4303

4
PIU4304
5
PIU4305
6
PIU4306
7
PIU4307
8
PIU4308
9
PIU4309

VA5
VA4

OE
WE
CS1
CS2

COR10
R10

PIR10 2

VRD

VA3
VA2
VA1
VA0

COR11
R11

VA9

10k

VA10

13
PIU47013
12
PIU47012
11
PIU47011
10
PIU47010
9
PIU4709

VCC

D3
D4

COR3
R3
PIR301

PIR302NMI

PIR401
COR5
R5
PIR501

PIR402WAIT PIU1024
10k
25
PIR502BUSRQ
PIU1025
16
INT PIU1016

2
PIU4402
3
PIU4403
4
PIU4404
5
PIU4405
6
PIU4406
7
PIU4407
8
PIU4408
9
PIU4409

VA12

PIU42099 VRD

VRD

U5D
PIU5013

VWR 11
PIU5011
COC43
C43

PIU5012

13

D6
D7

B1
B2
B3
B4
B5
B6
B7
B8

18

16
PIU43016
15
PIU43015
14
PIU43014
13
PIU43013
12
PIU43012
11
PIU43011

A5
A4

A14

A3
A2

A15

A0

12PIU23012

QA
QB
QC
QD
10
QE
CLK PIU37010
QF
QG
11
QH
CLR PIU37011
QI
QJ
QK
QL

A1
A2
A3
A4
A5
A6
A7
A8

B1
B2
B3
B4
B5
B6
B7
B8

18
PIU44018
17
PIU44017
16
PIU44016
15
PIU44015
14
PIU44014
13
PIU44013
12
PIU44012
11
PIU44011

A9

nAL

A13

6PIU2406

NLAL1
AL1

12PIU27012

PIU2907
74HC08

PIU27044

PIU30012

9

PIU28010

10

12 8

VCC

PIU2808

74HC86

COU45B
COU45A
U45A

74HC32

5

6

NLHSync
HSync

PIU2705

PIU4506

74HC74

U26C
PIU2609

8
PIU2608
1

CON3

74HC08
COU26A
COU26B
COU26C
COU26D
U26A

PIU26014

U28D
11
PIU28011

VBorder
NLVBorder

U26B
5

VC5

PIU5 07

74HC11

PIU28013

13

PIU28012

12

1
PIU2601

3PIU2603

PIU26022

PIU2607

74HC08

74HC32

PIU2605

6
PIU2606

VC4

D

12
PIU9012
11
PIU9011

QCLK

PIU2501

2

5
PIU1905

11

6

PIU19011

PIU1906

Y0 A
Y1 B
Y2 C
Y3
Y4
Y5 G1
Y6G2B
Y7G2A

8

PIU2802

4

D

QCLK

2
PIU1902

HC1
HC2

HCa

HC3

HC0

NLHC1
HC1
VCC
6
5
PIU1705
PIU17044

PIU1706

PIU2102

3

15
PIU18015
14
PIU18014
13
PIU18013
12
PIU18012
11
PIU18011
10
PIU18010
9
PIU1809
7

NLHQ1
HQ1

NLHQ2
HQ2
NLHQ3
HQ3

PIU2307

74HC00

NLHQ5
HQ5
U23B
4

PIU2304

6
PIU2306

74HC08

2

NLHC3
HC3
NLHC4
HC4

HC8

HC5
NLHC5

PIU2107

HC2

PIU1901
U21B

2

11PIU21011

9 PIU2106
6

128PIU2108

10

PIU21010

PIU21013 13

PIU2104

4

PIU2105

5

PIU1807

HC6
HC7

20 14
IUU20A
COU20A
COU20B
COU20C
PCOU20D

1

PIU1801
2
PIU1802

3
PIU1803

HC8

1

PIU2001

3
PIU2003
4

HC5

PIU2004

6PIU2006

HC6

PIU20 7

74HC00

5
PIU2005

HC7

VCC
6

HC1

2

PIU2002

HCa

74HC00

PIU1804

J15
COJ15

NLHC6
HC6

74HC00

VCC

28.000MHz = 48K TIMIMG
28.375MHz = 128K TIMING

Y2

1-2 = NTSC
2-3 = PAL

3.579MHz = NTSC
4.433MHz = PAL

1

PIU4601
COC3x
C3x

PIC301

COC3
C3

Vin

Vout
GND

VCC

PIU4602

3

BK0

2PIU5102

COC6
C6
COC6x
C6x

PIC601

10uF

PIC302

10uF

PIC6x02

22uF

PIC602

74HC74

COC29
C29

PIC2901

PIC501

PIC2902

PIC502

COC5
C5

PIC901

COC9
C9

PIC10 1

COC10
C10

PIC1 01

COC11
C11

PIC10 2

0.1uF

PIC1201

COC12
C12

22uF

220uF

PIC902

0.1uF

0.1uF

PIC1 02

0.1uF

PIC1202

0.1uF

PIC1301

COC13
C13

PIC1401

COC14
C14

PIC1501

COC15
C15

PIC1601

COC16
C16

PIC1701

COC17
C17

PIC1901

COC19
C19

PIC1302

0.1uF

PIC1402

0.1uF

PIC1502

0.1uF

PIC1602

0.1uF

PIC1702

0.1uF

PIC1902

0.1uF

PIC20 1

COC20
C20

PIC2101

PIC20 2

0.1uF

COC21
C21

PIC3901

COC39
C39

PIC2102

PIC3902

0.1uF

0.1uF

A8

M1

A10

RFSH

-12V

RD

WR

WAIT

+12V

IORQ

-5V

D4

HALT

MREQ

D3

NMI

D5

D6

INT

D2

D1

D0

A13

D7

B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28

B1
B2
B3
B4

A11

A9

A4

BUSAK

A5

ROMCS

A7

A6

RST

BUSRQ

GND

IORQGE

A3

A2

A0

A1

CLKB

GND

GND

A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28

A1
A2
A3
A4

+9V

A12

A14

4
6
PIU1306

PIQ903

COQ9
Q9
2SA1175

PIQ901

PIQ902

PIQ10 3

COQ10
Q10

PIQ10 2

PIQ1101

2SA1175

PIQ1001

COQ11
Q11
2SA1175

PIQ1 03
PIQ1 02

5

PIQ1203

COJ1
J1

COQ12
Q12

2SA1175

PIQ1201

COU14
U14
14PIU14014
QA A
13PIU14013
QB B
12PIU14012
QC C
11PIU14011
QD D
15PIU14015
RCO
CLK
ENT
ENP
LOAD
CLR

COU15
U15
14PIU15014
QA A
13PIU15013
QB B
12
PIU15012 QC C
11PIU15011
QD D
15PIU15015
RCO
CLK
ENT
ENP
LOAD
CLR

COU16
U16
14PIU16014
QA A
13PIU16013
QB B
12
PIU16012 QC C
11PIU16011
QD D
15PIU16015
RCO
CLK
ENT
ENP
LOAD
CLR

PIQ1303

COQ13
Q13
2SA1175

U55C
9
PIU5509
10
PIU55010
11

8
PIU5508

BK0

13
PIU24013

A14

12
PIU24012

BK1

9PIU2909
74HC08
U24A
COU24A
COU24B
COU24C
COU24D
1PIU2401
2

6
PIU2206
74HC32

PIU1 07
74HC08

2PIU1002

D

3PIU1003

CLKQ

74HC04

NLCLK7
CLK7

11PIU13011

COD6
D6

12
13

NLA5
A5

PID601

NLRD
RD

PID701

PIU10055

Q

PIU10 1

74HC74

U11B

D0
D1
D2
D3
D4
D5

U12B

4PIU1104

5

PIU1205

4

PIU1204

6
PIU1106

PIU12013

5PIU1105

6
PIU1206

74HC32
74HC08

74HC32

3
PIU3903
5
PIU3905
7

PIU3907
9
PIU3909
11
PIU39011

13

PIU39013

Y1
Y2
Y3
Y4
Y5
Y6

A1
A2
A3
A4
A5
A6

VCC
2 S0
PIU3902
4 S1
PIU3904

NLS0
S0
NLS1
S1
NLS2
S2
NLS3
S3
NLS4
S4

6 S2

PIU3906
10 S3
PIU39010
12 S4
PIU39012

14 NLVCC
VCC

PIU39014

COR61
R61
1PIR6101
2PIR6102
3PIR6103
4PIR6104
5PIR6105
6PIR6106
10k

74HC366

74HC08

3

MREQ

74HC08

U11C

2
10

PIU1402

U12C

PIU14010
PIU14077

10

NLHC0
HC0

8

COJ13
J13

COU12A
COU12B
COU12C
COU12D
U12A

PIU12014

9
PIU1009

Q

1

8

CLKQ

PIU1008

2

PIU1202

PIU1207

74HC32

74HC74

VCC
1
2
3
4
5
6
7

PIU1201

3
PIU1203

VCC

PIU1208

9

D

PIU10 7 PIU10 13

PIU12010

9

PIU1409
1
PIU1401

VCC

5
PIJ1605
9

PIJ1301
PIJ1302S0
PIJ1303S1

PIJ1609
S0 4
PIJ1604
8
PIJ1608

S1 3

S2

PIJ1304
PIJ1305S3

PIJ1603
7
PIJ1607

PIJ1306

S4

PIJ1602

PIJ1307

PIJ1606
S3 1
PIJ1601

S2 2
S4 6

C

Header 7

NLCLK
CLK

KEMPSTON

PIU1209

U13D
74HC32
8PIU1308

3

PIU1503
PIU15044

9

PIU1309

74HC04

5
PIU1505
6
PIU1506
2

PIU1502
10
PIU15010
PIU15077

NLHCa
HCa

9

PIU1509
1
PIU1501

D

PIU4509

Q

11 NLCLKB
CLKB
PIU29011

74HC08

PIU45010

PIR1601

1K

PIR1602
PIC201
27pF
PIC202

U20C

D1
D3

74HC04
PIU1307

D4

COY1
Y1

PIY101

U51C
10PIU51010
8 NLBC1
BC1

9PIU5109

PIU5108

74HC00

PIR5902

COU50
U50
3PIU5003
1D
4PIU5004
2D
6PIU5006
3D
11PIU50011
4D
13PIU50013
5D
14PIU50014
6D

D5

1Q
2Q
3Q
4Q
5Q
6Q

PIU50022

NLBK0
BK0

5 NLBK1
BK1

PIU5005
7 NLBK2
BK2
PIU5007
VB
PIU5001010 NLVB

12 NLROM0
ROM0
PIU50012
15
PIU50015

PID301

PIY102

28.375MHz

COC2
C2

10

PIU4010
9
PIU409
PIU4077

PIU50 16

D0

1

PIU1301

D2
COR16
R16

74HC04

9
PIU1609
1
PIU1601

BDIR
NLBDIR

74HC00

470

PIR1502

2.2M

2

PIU1302

11

PIU51011

13

PIU4013
12
PIU4012
PIU401111

COR59
R59
PIR5901

PIU13014
COU13A
COU13B
COU13C
COU13D
COU13E
COU13F
U13A
3

PIU1303

PIU51013

12PIU51012

PIU408

PIR1501

U13B
4PIU1304

CLK14
NLCLK14

13
15

PIU4015
PIU401414

74HC138
COR15
R15

4k7

PIR1702

2

13PIU29013

12PIU45012

COR17
R17

5

PIU1602
10
PIU16010
PIU16077

9

PIU4508

A15

VCC

PIR1701

PIU1605
6
PIU1606

U29D
12PIU29012

CLKQ

VCC
3

8

11PIU45011

74HC74PIU45014

PIU1603
PIU16044

U51D

COU4 PIU4016
U4
1PIU401
A Y0
2PIU402
B Y1
3
WR
PIU403 C
Y2
Y3
Y4
6
VCC
PIU406 G1 Y5
IORQGE 5
PIU405 G2BY6
4PIU404
A1
G2AY7
A14

PIU4507 PIU45013

U45B

2

PIU2009

PIC401
PIC402

NLRST
RST
COC4
C4

27pF

D3
COD3

1PIU5001
CLR
9PIU5009
CLK

1N4148

PIU50 8

PID302

74HC174

8

PIU2008

10
PIU20010
3
PIU2403

74HC00

COU53D
COU53A
COU53B
COU53C
U53A

PIU53014

PIU2402

PIU2407

3

RA14

U53B

PIU5202

4

PIU5304

NLnAL
nAL
PIU2 09

11PIU10011

74HC08

PIU5203

U22C
9
10

12PIU10012

6

PIU1406

74HC08

PIU5201

A15

PIU24011

PIU11088

10PIU11010

MREQ

COJ16
J16

U10B

PIU10 14 PIU10 10

9PIU1109

NLIORQULA
IORQULA

PIU1403
PIU14044
PIU14055

74HC32

74HC08

1

BK2

2PIU5302

74HC08
U53D
13PIU53013

AL

12PIU53012

4

PIU5303

AL
NLAL

PIU5307

74HC08
nA15
NLnA15

8

PIU5308
PIU52012

13

PIU52013

U51B
4
PIU5104

11VA14

11

5

U52C
PIU5204

6

PIU5206
PIU5205

74HC32

PIU52011

A15

5PIU5105

74HC32

PIU53011

6

PIU5106

9

PIU5209

10

PIU52010

8

PIU5208

VA15

74HC32

U52D
12

D

RA15

U52B

PIU5301

3

U53C
9PIU5309
10PIU53010

VB

8
PIU2208 RAM

PIU2 010

PIU53066

5

PIU5305

A14

nA15
Title
ZX Spectrum Superfo Harlequin 128K

74HC00
Size

Document Number

Rev

A

74HC08

2B

Date:

3

PIR60 210K
1
PIU3901
15 NLIORQGE
IORQGE
PIU39015

8
GND PIU3908

11

PIU11011

13PIU11013

PIR60 1
COR60
R60

PID702

VCC COU39
U39 1N4148
16
PIU39016
VCC OE1
OE2

PIU12012
PIU12011

PID602

1N4148
COD7
D7

6

PIU1006

VCC

U12D
NLnA14
10 nA14
PIU13010

12PIU11012

VCC

PIU24014

74HC32
PIU5207

11

PIU55011

2

B

RCPT 8

PIQ1302

PIU2 05

NLHCrst
HCrst

8
PIU2908

HC8
NLHC8

PIU52014

1

nBK0

U24D

74HC11

1

1
2PIJ102
3PIJ103
4PIJ104
5PIJ105
6PIJ106
7PIJ107
8PIJ108

PIQ1301

PIQ1202

COU10A
COU10B
U10A

PIU10 4

PIU2 04

2PIU1102

U13E

HC7
NLHC7

HC3

COU52D
COU52A
COU52B
COU52C
U52A
nA14

3

PIU5103

74HC00
PIU5107

74HC04

PIU4603

PIC6x01

PIQ802

COQ8
Q8
2SA1175

9

PIU510 4

12

PIU13012

COU46
U46 OKI-78SR-5

PIC3x01
PIC3x02

Y1

1-2 = 48K TIMING
2-3 = 128K TIMING

PIU13013

2

DC JACK
J14,J15

J9,J10,J11

U51A
COU51A
COU51B
COU51C
COU51D
1PIU5101

U13F

+9V

3
PIU903

PIU901

2

PIJ1502
3
PIJ1503

VCC
13
3

NLC7
C7

PIU29010

VCC
1
PIJ1501

VC1

PIJ403
2
PIJ402
1
PIJ401

3 5PIU1305
PIU1103

NLVSyncEn
VSyncEn

10

VC2

COJ4
J4

D

2
PIU902

U13C

PIU1608
74HC161
U29C

4

74HC138

VC0

PIQ801

PIQ803

VCC

QCLK

PIU1806
5
PIU1805

PIU1808

5
PIU2305

PIQ702

2SA1175

PIQ701

U22B

COU11D
COU11A
COU11B
COU11C
U11A
PIU1 014
1PIU1101

NLC6
C6

PIU16016

HC0

U20B

Y0 A
Y1 B
Y2 C
Y3
Y4
Y5 G1
Y6G2B
Y7G2A

PIR1301 PIR1302 PIR1303 PIR1304 PIR1305 PIR1306 PIR1307 PIR1308 PIR1309

A15

PIU1508
74HC161

74HC32
74HC32

COU18PIU18016
U18

2
PIU2302

74HC4040

NLHC2
HC2

74HC32

PIU2109
PIU21012

PIU2807

PIU2301

74HC00

1

74HC32

3
PIU2303

4.7K*8

NLA14
A14

PIU15016

3
PIU2103

PIU1903

U21D

1

74HC32

1

PIU2301010

COQ7
Q7

A8

PIU1408
74HC161

HC8

PIU2308

NLD6

74HC32

PIU14016

1

PIU1701
PIU17022
PIU17033

PIU2101

VCC
U21C

PIU2803

PIU4504

Q

74HC74

PIU19013 PIU1907

3

PIU4502

23014
IUU23A
COU23A
COU23B
COU23C
PCOU23D

9

PIU2309

PIU2508

PIU26044

74HC11

PIU22012

NLD3

20 D6
PIU3x020
21 NLD7
D7
PIU3x021

PIJ101

PIQ703

A12

NLnBK0
nBK0

COU21A
COU21B
COU21C
4
10U21A
PIU2COU21D

PIU1904
PRE

PIU1901212

COU28A
COU28B
COU28C
14
80U28A
PIU2COU28D

3

PIU4503

VCC

COQ6
Q6
2SA1175

A10

U11D

CON3

6PIU5506

12

NLD0

17

PIU3x017D3
18 NLD4
D4
PIU3x018
19 NLD5
D5
PIU3x019

HM628128

COR13
R13

PIQ601

PIQ602

RESET

A15

VCrst

3
4
PIU5504
5
PIU5505

PIU5503

MCON

Q

VCC

COU19A
COU19B
U19A

VCC

D

U23C
NLHBlank
HBlank

1
2

NLVRAM
11 VRAM
PIU22011

6
PIU906

U55B

D

PIU22013

13

PIU3x013D0
14 NLD1
D1
PIU3x014
15 NLD2
D2
PIU3x015

24
RD PIU3x024
OE
NLWR
29
WR PIU3x029
WE
NLRAM
CS1
CS2

A13

13

D0
D1
D2
D3
D4
D5
D6
D7

22
RAMPIU3x022
NLA15
30
A15 PIU3x030

A9

COR51
R51

5
PIU905

PIU1708

HC4

QA
QB
QC
QD
10
QE
CLK PIU25010
QF
QG
11
QHCLR PIU25011
QI
QJ
QK
QL

PIU2509

5PIU2505
NLVC4 3
VC4
PIU2503
NLVC5 2
VC5
PIU2502
NLVC6 4PIU2504
VC6
VC7 13
PIU25013
VC8
NLVC8 12PIU25012
14PIU25014
15PIU25015
1
VC3
NLVC3

CON3

12PIU55012

9

VC1
NLVC1 7
PIU2507
NLVC2 6
VC2
PIU2506

PIU2601313

74HC00

1
PIU5501
2
PIU5502
PIU5501313

VC0
NLVC0

PIU26012

11PIU26011

74HC08

3
PIJ1103
2
PIJ1102
1
PIJ1101

COU55A
COU55B
U55A
014
PIU5COU55C

PIU25016

12

PIU26010

PIU27022

PIU2707

COJ11
J11

COU25
U25

U26D

10

PIU2701

3

PIU2703

74HC74

9

COU27A
COU27B
COU27C
7014
2U27A
PIUCOU27D

Q

4

1
PIJ1401
2

PIJ1202
PIR701ROMCS

PIU2001313

PIU17010

10

PRE

D

QCLK

PIU4501

QCLK
PRE

5

PIU4505

VSyncEn

PIJ1402
3
PIJ1403

COR7
R7
470

PIQ603
A11

U22D

COU9B
COU9A
PIU904 U9A

PIU17016

PIU1901 PIU19014

PIU2801

74HC00
COJ14
J14

3PIR702
PIU2203

HC6

NLC0
C0 15
PIU17015
14PIU17014
13PIU17013
NLC3
C3 12
PIU17012
NLC4
C4 11
PIU17011
NLC5
C5 10
C6 9
PIU1709
C7 7
PIU1707

PIU2408

8PIU1908

PIU2809

13 D0
I/O0 PIU3013
14 D1
I/O1 PIU3014
15 D2
I/O2 PIU3015
17 D3
I/O3 PIU3017
18 D4
I/O4 PIU3018
19 D5
I/O5 PIU3019
20 D6
I/O6 PIU3020
21 D7
I/O7 PIU3021

PIU3016

U20D
PIU2001212

NLC1
C1
NLC2
C2

8

Q

PIU3x032

VCC

CLR

U28C

CON3

6

PIU2706

10pF

PIU2 02

PIU2 07

74HC00
COU17
U17

5

9PIU1909

9

A0
A1
A2
A3
A4
A5
NLA6
6
A6 PIU3x06
A6
NLA7
5
A7 PIU3x05
A7
NLA8
27
A8 PIU3x027
A8
NLA9
26
A9 PIU3x026
A9
NLA10
23
A10 PIU3x023
A10
NLA11
25
A11 PIU3x025
A11
NLA12
4
A12 PIU3x04
A12
NLA13
28
A13 PIU3x028
A13
NLRA14
3
RA14
PIU3x03 A14
NLRA15
31
RA15
PIU3x031
A15
2
GNDPIU3x02
A16

UM61512

COJ12
J12
RST PIJ1201

74HC32

1

2

PIJ1002
3
PIJ1003

PIU2 01

2

907
PIU9013 PIU74HC74

74HC08
U24C

CLR

74HC32
U27B

2

PIU2902

Q

8
PIU908

PIU2405

74HC00

13

PIU2014

RFSH

NLDen
Den

9
PIU909

RD

4
PIU2404

13

PIU2903

PIU30013

11
PIU30011

1

9014
PIU9010 PIUU9B

PIR3201

VRAM

U24B

NLVout
Vout

12

NLA3
A3

PIU3x09
NLA4
8
A4 PIU3x08
7
A5 PIU3x07

VCC
470

A12

PIU4 01

U27D

1

3

NLComSync
ComSync

COJ10
J10
1
PIJ1001

28

COR32
R32

A11

11PIU20011

VCC

U30D

5

27C256

21

PIU1021 RD
22 WR
PIU1022

74HC04

CLR

PIC40 1
PIC40 2

PIR2201

10k

PID102

PIR3202

A10

74HC245

VCC

4

NLA0

A8

OutLatch

U19B

PIU8x016

HM628128

OE
WE
CS1
CS2

30
A15 PIU3030

11 NLMCON
MCON

10

A
OE
WE
CS1
CS2

PIU3x016

24
PIU3024
29
PIU3029
22
RAMPIU3022

VPP

74HC32

11
PIU27011

24

30
VCCPIU8x030

PIU3032

A0
A1
10
A2 PIU3010
A2
9
A3 PIU309
A3
8
A4 PIU308
A4
7
A5 PIU307
A5
6
A6 PIU306
A6
5
A7 PIU305
A7
27
A8 PIU3027
A8
26
A9 PIU3026
A9
23
A10PIU3023
A10
25
A11PIU3025
A11
4
A12PIU304
A12
28
A13PIU3028
A13
3
RA14PIU303
A14
31
RA15PIU3031
A15
11
A1 PIU3011

OE
CE

PIU1028

COU22A
COU22B
COU22C
COU22D
U22APIU2 014

74HC138

6

1

PIU201

74HC00

13PIU27013

NLVRD

VRDPIU8x024
NLVWR
29
VWRPIU8x029
NLVCS
22
VCSPIU8x022

PIR101 PIR102 PIR103 PIR104 PIR105 PIR106 PIR107 PIR108 PIR109

12
A0 PIU3012

AL

PIU27010

PIR2202

PID202

20

PIU1020IORQ
27 M1
PIU1027
19 MREQ
PIU1019

A14

11

PIU23011

74HC00
U28B

COC40
C40

1N4148

PID201

22

PIU2022
20
PIU2020

10k

9

PIU2805

1N4148

PID101
COD2
D2

VCC

PIU1029

MREQ

74HC08

PIU2806

COD1
D1

11
D0
O0 PIU2011
12 D1
O1 PIU2012
13 D2
O2 PIU2013
15 D3
O3 PIU2015
16 D4
O4 PIU2016
17 D5
O5 PIU2017
18 D6
O6 PIU2018
19 D7
O7 PIU2019

A0
A1
8
A2 PIU208
A2
7
A3 PIU207
A3
6
A4 PIU206
A4
5
A5 PIU205
A5
4
A6 PIU204
A6
3
A7 PIU203
A7
25
A8 PIU2025
A8
24
A9 PIU2024
A9
21
A10PIU2021
A10
23
A11PIU2023
A11
2
A12PIU202
A12
26
A13PIU2026
A13
27
ROM0 PIU2027
A14

23 BUSAK
PIU1023
18 HALT
PIU1018

A1

PIU2709

PIU29011

NMI
WAIT
BUSRQ BUSAK
INT
HALT
IORQ
M1
CLK
MREQ
RD
WR
REFSH

Z80-CPU

10

COU29A
COU29B
COU29C
COU29D
9014
PIU2U29A

6
PIU106

PIU43018 A7
17 A6
PIU43017

PIU24010

COR22
R22

24

COU3
U3

PIU2028

10
A0 PIU2010
9
A1 PIU209

13PIU23013

NLAL2
AL2

PIU2804

17
PIU1017

10k

19
PIU44019 G
1
PIU4401 DIR

WR

12

U27C
8
PIU2708

10k

PIR5101

VA13

PIU3008

NLBlank
Blank

10uF

COR4
R4

D5

PIU24099

74HC86

COC1
C1

PIC102

PIU4302

A1
A2
A3
A4
A5
A6
A7
A8

RST

PIC101

16 D0
PIU47016
15 D1
PIU47015
14 D2
PIU47014

PIR5102

VCS

180pF

B0
B1
B2
B3
B4
B5
B6
B7

PIU4301

VA11

VCS

U23D

26
RST
PIU1026

A0
A1
A2
A3
A4
A5
A6
A7

19
PIU43019 G
1
PIU4301
DIR

VA8

7 VA13

PIC4301
PIC4302

30 A0
A0 PIU1030
31 A1
A1 PIU1031
32 A2
A2 PIU1032
33 A3
A3 PIU1033
34 A4
A4 PIU1034
35 A5
A5 PIU1035
36 A6
A6 PIU1036
37 A7
A7 PIU1037
38 A8
A8 PIU1038
39 A9
PIU1039
A9
40
A10 PIU1040A10
1
A11 PIU101A11
2
A12 PIU102A12
3
A13 PIU103A13
4
A14 PIU104A14
5
A15
PIU105
A15

74HC245

PIR1 02

PIU4201212VCS

10k*8

COU44
U44 PIU4 020

PIU4207

8

C

WR

13 VD0
PIU8013
14 VD1
PIU8014
15 VD2
PIU8015

74HC4040
9

VCC

10

VA6

PIR1 01

COU2
U2

PIU1011

D0
D1
12
D2PIU1012
D2
8
D3PIU108
D3
7
D4PIU107
D4
9
D5PIU109
D5
10
D6PIU1010
D6
13
D7PIU1013
D7
15
D1PIU1015

CLK

10k

1Y

PIU4208

PIU3708

U30C

1A
1B
2A
2B
3A
3B
4A
4B

74HC257

COU37
U37 PIU37016

VCC

6

4

PIU36022

CLK7

U29B

PIU30 4

COU1
U1
14
D0PIU1014

COU43
U43

PIR10 1

COR1
R1

VCC

RES x 8

VCC

PIU8x04

A0 PIU3x012
NLA1
11
A1 PIU3x011
NLA2
10
A2 PIU3x010

COU47
U47

I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7

NLAudio1
Audio1
NLAudio2
Audio2

IORQ

PIU8032

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15

NLROMCS NLBUSAK

PIR902
RD

PIU509 9

VCC

15PIU42015
G
1PIU4201
A/B

PIU36010
74HC574

6

PIU3406

VCC

PIU3006

1D
2D
3D
4D
5D
6D
7D
8D

CLK
OC

9

PIU3208

74HC253

IORQULA

UM61512

VA10
PIU4101212

PIU4108

COU42
U42PIU42016

PIU3602

1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q

1

PIU3401
15
PIU34015
7
PIU3407

PIU3409 PIU340874HC166

15
2G PIU32015

U30B

5

PIU8016

74HC257

PIU32016

A15

2

B1
B2
B3
B4
B5
B6
B7
B8

19PIU40019
G
1PIU4001
DIR

CA2

PIU3501

74HC574

COU32
U32

4

PIU505

U5C

2PIU4002
3PIU4003
4PIU4004
5PIU4005
6PIU4006
7PIU4007
8PIU4008
9PIU4009

NLCA1
CA1
NLCA0
CA0

PIU38016

10
2Y2C0 PIU31010
11
2C1 PIU31011
12
2C2 PIU31012
13
2C3 PIU31013

PIU504

74HC32

COU8
U8

NLBUSRQ

COU3x
U3x

10k

COU38
U38

NLDD3
DD3

PIU6010

PIU40 20

NL09V

470

6
PIU506

COU40
U40

2.2nF

COR9
R9

74HC541

PIR3101

1
1G PIU3101

NLDD1
DD1

PIU6011 AL
PIU601919

8
PIU5408
7
PIU5407

IORQGE

PIR901

U5B

PIR602

PIU310 6

NLDD2
DD2

VD7

74HC32

COU31
U31

2
B PIU3102
14
A PIU31014

PIU507

74HC32

VD6

COJ3
J3

PIU5406

2.2K

NLCA2
CA2

NLDD0
DD0

2

PIU502

VD5

COR31
R31

NLCA3
CA3

DD1

A0

PIR5801

ZX_EDGE

10
PIU54010
9
PIU5409

AY-8912

VD4

PIR3102

3.9K

1

PIU501

8
PIU508

PIR2902 PIR30 2

D7

COU5A
COU5B
COU5C
4
01U5A
PIU5COU5D
3
PIU503

VD3

PIU5010

VCC

B1

PIU601515
PIU601414
13
PIU6013
PIU601212
PIU601111

RCPT 5

2.2K

PIU3103

18 VD0
PIU6018
PIU601717 VD1
PIU601616 VD2

KB4

NLCA8
CA8
NLCA4
CA4

6
1C0 PIU3106
5
1C1 PIU3105
4
1C2 PIU3104
3
1Y1C3

D6

Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7

KB3

NLCA10
CA10

PIU3107

PIU6020

A0
A1
A2
A3
A4
A5
A6
A7

OE1
OE2

KB2

NLCA9
CA9

7

NLKB3
KB3 5
PIU605
NLKB4
KB4 6
PIU606
7PIU607
NLEar
Ear 8
PIU608
9PIU609

PIQ402

PIQ403

PIR2802

KB1

5
PIJ205

PIQ401

PIQ303

COR25
R25

KB0

2

PIJ202
3
PIJ203
4
PIJ204

PIR4301

COQ4
Q4
BC548

PIQ302

PIR2501

PIR2301 PIR2401

PIR2101

PIR3801

1
PIJ201

1N4742A

68

COU6
U6
NLKB0 2

KB0 PIU602
NLKB1
KB1 3
PIU603
NLKB2
KB2 4
PIU604

COJ2
J2

PIU708

COD5
D5

COR43
R43

68

10k*8

D0

1
CLR PIU701
9
CLK PIU709

2

PIR2102

COR38
R38

COR2
R2

3
1D PIU703
4
2D PIU704
6
3D PIU706
11
4D PIU7011
PIU701313
5D
14
6D PIU7014

PIR5701

AUDIO

13 NLVD0
VD0
D0 PIU8x013NLVD1
14 VD1
D1 PIU8x014NLVD2
15 VD2
D2 PIU8x015NLVD3
17 VD3
D3 PIU8x017NLVD4
18 VD4
PIU8x018
D4
19 NLVD5
VD5
D5 PIU8x019NLVD6
20 VD6
D6 PIU8x020NLVD7
21
D7 PIU8x021VD7

A0
NLVA1
11
VA1PIU8x011
A1
A2
A3
NLVA4
8
VA4PIU8x08
A4
NLVA5
7
VA5PIU8x07
A5
NLVA6
6
VA6PIU8x06
A6
NLVA7
5
VA7PIU8x05
A7
NLVA8
27
VA8PIU8x027
A8
NLVA9PIU8x026
26
VA9
A9
NLVA10
23
VA10PIU8x023
A10
NLVA11
25
VA11PIU8x025
A11
NLVA12
4
VA12
A12
NLVA13
28
VA13PIU8x028
A13
NLVA14
3
VA14PIU8x03
A14
NLVA15
31
VA15PIU8x031
A15
NLGND
2
GNDPIU8x02
A16
NLVA2
10
VA2PIU8x010
NLVA3
9
VA3PIU8x09

PIJ30A1 PIJ30A2 PIJ30A3 PIJ30A4 PIJ30A6 PIJ30A7 PIJ30A8 PIJ30A9 PIJ30A1 PIJ30A1 PIJ30A12 PIJ30A1 PIJ30A14 PIJ30A15 PIJ30A16 PIJ30A17 PIJ30A18 PIJ30A19 PIJ30A2 PIJ30A21 PIJ30A2 PIJ30A2 PIJ30A24 PIJ30A25 PIJ30A26 PIJ30A27 PIJ30A28

2
PIJ502
1
PIJ501

PIC3802

COC42
C42

PIU8x032

NLVA0
12
VA0PIU8x012

1
2
3
4
5
6
7
8
9

VCC

NLMic
Mic
NLB1

PIU7016

1Q
2Q
3Q
4Q
5Q
6Q

D5

11

0.47uF

PIC3801

4

VCC

2PIU702
5PIU705
7PIU707
10PIU7010
12PIU7012
15PIU7015

1

68

PIQ202

PIQ203

PIR3802

COR20
R20

270

PIQ103

150

PIR802

PIJ80CASE3

PIR4802

24
PIU54024
23
PIU54023
22
PIU54022
21
PIU54021

PIR5601

COR56
COR58
R56 COR57
R57 R58
1K 1K 1K

13
PIU54013
12
PIU54012
PIU54011

COC38
C38

PIC4101 PIC4201
2.2nFPIC4102 PIC4202
COC41
C41

NLM1

NLWAIT NL012V NL012V NLRFSH

D7

PIQ201

27

26
PIU54026
25
PIU54025

9.1K
PIR5501

D5

COQ2
Q2
BC548
PIQ102

NLB0
B0
NLB2
B2
NLSpkr
Spkr

COR8
R8

270

PIR1201

COR48
R48

PIU54027

PIR5802

D6

PIR1901

28
PIU54028

D1

PIR5702

NL05V

PIJ30B1 PIJ30B2 PIJ30B3 PIJ30B4 PIJ30B6 PIJ30B7 PIJ30B8 PIJ30B9 PIJ30B1 PIJ30B1 PIJ30B12 PIJ30B1 PIJ30B14 PIJ30B15 PIJ30B16 PIJ30B17 PIJ30B18 PIJ30B19 PIJ30B2 PIJ30B21 PIJ30B2 PIJ30B2 PIJ30B24 PIJ30B25 PIJ30B26 PIJ30B27 PIJ30B28

COJ5
J5

5
PIJ505
4
PIJ504
3
PIJ503

PIC3702

PRE

PIR801

COR12
R12

PIJ8066

PIR20 2

D0

PIR5602

0.47uF

PIC3701

D4

PIR3401

PIJ80CASE2

EAR/MIC

R55
PIR5502

COR55

14
PIU54014

COC37
C37

D3

68

19
PIU54019
18
PIU54018
17
PIU54017

9.1K
PIR5201
15K
PIR5301
15K
PIR5401

D2

COR19
R19

68

PIR3602

20
PIU54020

BDIR

R52
PIR5202
COR53
R53
PIR5302
COR54
R54
PIR5402

D1

PIJ80CASE1

COR34
R34

3
PIJ603
2
PIJ602
1
PIJ601

10k

BC1

COJ6
J6

5
PIJ605
4
PIJ604

COR36
R36

COR52

NLA0AY

5
A-AY
PIU5405
NLB0AY
4
B-AY
PIU5404
NLC0AY
1
C-AY
PIU5401

NLMREQ NLIORQ

CLR

+9V

PIR1202

PIJ804
PIJ8033
PIJ8011

PIR4801

COQ1
Q1
BC548

VCC

4

PIJ808
5
PIJ805
2
PIJ802

PIR3601

/RESET
CLK ChA
ChB
BC1 ChC
BC2
BDIR
A8
IO0
IO1
D0
IO2
D1
IO3
D2
IO4
D3
IO5
D4
IO6
D5
IO7
D6
D7

D0

PIR1902

270

PIR1801

PIQ101

COU7
U7

PIR4902

NLNMINLHALT

1

8

PIR3402

1nF

D3

VCC
1
PIR201
2
KB0
PIR202
3
KB1
PIR203
4
KB2
PIR204
5
KB3
PIR205
6
KB4
PIR206
7
PIR207
8
PIR208
9
PIR209

NLINT

1
2
3
4
5
6
7
8
9

M-DIN_8-R

7
PIJ807
Audio

COR18
R18

COC18
C18

PIC1802

D2

CON3

2.7K

CSync

3.3nF

PIC1801

D4

COJ8
J8

NLCSync

PIR3502

12K

2
PIJ902
3
PIJ903

PIR4901

PIR1802

PIU4905

PIR3501

0.1uF

4.433MHz

A

NLBB

47K

PIR4502

PIC801 PIC802
COC32

PIC3201 C32
PIC3202 1nF

15
PIU54015

VCC

COJ9
J9

1

PIJ901

COR49
R49

NLR
R
NLG
G

PIJ702

75

VCC

3.3nF

3
+PIU4903

HC1

10

220uF
COC35
C35

2
-PIU4902

7
PIU4907
C36

COR35
R35

PID401

16
PIU54016

PRE

PIY201

PIC3501
PIC3502

13
PIU48013
2
PIU4802

COC8
C8

6
PIU4906

0.1uF
COC36

NLAudio
Audio

PIU5403

RST

CLR

COY2
Y2

R45

COU54
U54

VCC

1N4740A

PIC701 PIC702

PIC3601
PIC3602

COR45

PIJ704
PIJ703

D4

13

STDN
SELECT DGND
FIN
AGND
AD724JR

12
PIU48012
3
PIU4803

PIR3302

33K

PIR4501

1PIJ701

COD4

PID402

TL712

13

PIY202

PIR3301

VIDEO
PIR4202

COC7
C7

COR33
R33

COJ7
J7

COR42
R42

PIC2802PIR4201

COU49
U49

PIU490 PIU4908

CLR

0.1uF

PIC3002

PIC3302

0.1uF

PIR4601

PRE

1
50C25
PIC2COC25
2
PIC25010pF

PIR410275 PIR40752 PIR397502 PIR50 24.7M

PIR4602

150K

COC28
C28

9
PIU4809

PIC3301

COR46
R46

Audio2
PIC3401 PIC3402

10

COC30
C30
PIC3001

11
PIU48011

PIR4402

150K

COC34
C34 0.1uF

10uF

4

LUMA
CRMA

1
PIU4801

PIR4401

C27

PRE

VSYNC
HSYNC

PIC2801

COR50

Audio1
PIC3101 PIC3102

COC27

CLR

COR39

0.1uF

1

COR40

C26

10

16
PIU48016
COR41

PIC2701
PIC2702

COC26

PRE

0.1uF

PIC2401

15
PIU48015

1 PIR39R39
01 PIR50 1R50
PIR4101R41 PIR40R40

CMPS

PIC2601
PIC2602

10
PIU48010

6

COU8x
U8x

CLR

6
PIU4806

BIN
GIN
RIN

5

13

COC24
C24
PIC2402

R

8
PIU4808
7
PIU4807

0.1uF

4
APOS PIU4804
14
DPOS PIU48014

ENCD

0.1uF

PIC2202 PIC2201

PIC2301

4

VCC

COR44
R44

4
8

C22

COC23
C23
PIC2302

G

COC33
C33

COC31
C31 0.1uF

5

5
PIU4805

COC22

B

3

VCC

COU48
U48

2

VCC

1

1

4

5

Sheet

6

1

of

1

Comment

Designator

Quantity

Comment

Designator

Quantity

10uF

C1, C3, C27

3

9.1K

R52, R55

2

27pF

C2, C4

1

4.7M

R50

1

10pF

C25, C40

2

2.2M

R15

1

0.1uF

C5, C9, C10, C11, C12, C13, C14, C15, C16, C17, C19, C20

12

Z80-CPU

U1

1

0.1uF

C7, C8, C21, C22, C23, C24, C26, C30, C31, C33, C34, C39

12

27C256 (ZX 128K ROM)

U2

1

22uF

C6

1

UM61512 or KM681000 or HM628128

U3, U8

2

1nF

C18, C32

2

74HC138

U4, U17, U18

3

220uF

C28, C29

2

74HC32

U5, U12, U21, U22, U28, U52

6

3.3nF

C35, C36

2

74HC541

U6

1

0.47uF

C37, C38

2

74HC174

U7, U50

2

2.2nF

C41, C42

2

74HC74

U9, U10, U19, U45

4

180pF

C43 (option)

1

74HC08

U11, U24, U26, U29, U53

5

1N4740A

D4

1

74HC04

U13

1

1N4742A

D5

1

74HC161

U14, U15, U16

3

1N4148

D1, D2, D3

3

74HC00

U20, U23, U27, U51

4

RCPT 8

J1

1

74HC4040

U25, U37, U38

3

RCPT 5

J2

1

74HC86

U30

1

DC JACK

J4

1

74HC253

U31, U32

2

AUDIO JACK

J5

1

74HC574

U33, U35, U36

3

EAR/MIC JACK

J6

1

74HC166

U34

1

VIDEO JACK

J7

1

74HC245

U40, U43, U44

3

Mini-DIN 8

J8

1

74HC257

U41, U42

2

Header 2x1

J9, J10, J11, J12, J14, J15 (option)

4

OKI-78SR-5 or RECOM R-78E5.0-1.0

U46

1

BC547 or BC548

Q1, Q2, Q3, Q4

4

470 * 8 Network Resistor (DIP)

U47

1

2SA1175 or 2SA1309A

Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13

8

AD724JR

U48

1

10k * 8 Network Resistor (SIP)

R1, R2

2

TL712

U49

1

10k

R3, R4, R5, R6, R10, R11, R22, R36, R51

9

AY-8912

U54

1

470

R7, R9, R32, R59

4

28.375MHz

Y1

1

150

R8

1

4.433MHz

Y2

1

270

R12, R18, R48

3

Socket IC

4.7k * 8 Network Resistor (SIP)

R13

1

SOCKET 8 PIN

1

4k7

R17

1

SOCKET 14 PIN

21

68

R19, R20, R21, R34, R38, R43

6

SOCKET 16 PIN

16

18K

R23, R26, R29

3

SOCKET 20 PIN

7

3.9K

R24, R27, R30

3

SOCKET 28 PIN

2

2.2K

R25, R28, R31

3

SOCKET 32 PIN (300mil or 600mil)

2

33K

R33

1

SOCKET 40 PIN

1

12K

R35

1

Option Joystick Interface

75

R39, R40, R41, R42

4

74HC366 or 74HCT366 or 74LS366

U39

1

15K

R53, R54

2

10K

R60

1

1K

R16, R56, R57, R58

4

10K * 5 Network Resistor (SIP)

R61

1

47K

R45

1

1N4148

D6, D7

2

2.7K

R49

1

Header 7x1

J13

1






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