Commodore A 2286 User manual
Commodore
A 2286
AT Emulator Card
Service Manual
1/89
Commodore
AT Emulator-Card
TABLE OF CO TE TS
Specifications 11.2
Installing Bridgeboard 11.3
Jumper Location 11.4
So Ider Jumper 11.6
Spare arts List 11.8
Schematics Main 11.20
Schematics Baby 11.33
5.25" Drive 11.40
A2286 SPECIFICATIO S
Card Type: Uses both Amiga bus (100 pin) and IBM-PC/XT bus
System of the Amiga A2000 (goes into combined position).
Function: Provides an 80286 co-processor System with IBM-PC/AT
compatibility. Uses AutoConfig features of the Amiga.
Socket for 80287 math co-processor.
DATA - 80286 SIDE
Clock Speed: 8 MHz
Memory: 1024 kByte RAM
ROM: 16 kByte BIOS
Interfaces: 1 internal floppy disk drive 5.25" 1.2 Mbyte capacity
1 internal floppy disk drive 3.5” 720 Kbyte capacity
(optional)
Parallel Port ( Centronics, IBM-PC compatible emulated
on Amiga parallel port).
Slots: 1 IBM-PC/AT / 2 IBM-PC compatible full size slots
Keyboard: AT keyboard emulated on the Amiga keyboard
Video Display: IBM-PC monochrome text mode and color mode are
emulated in seperat AmigaDOS Windows simultaneously.
System Software: MS-DOS
Inter-System
Communication:
DATA - AMIGA SIDE
64 kByte dual-port RAM as inter-process buffer
64 kByte dual-port scratch memory on Amiga side
Interrupt logic
Janus emulation Software
BUS I TERFACE
Type: Fast dual-port memory, full speed CPU access during
System DMA
Card Size: Full size Amiga 2000 card
Power: Supplied by System
Inciuded Items: Janus emulation Software on 3.5” floppy disk
Internal floppy disk drive 5.25”, 1.2 Mbyte capacity
Chapter 11
Installing the Bridgeboard Hardware
Before you install the Bridgeboard in your A2000, TUR OF ALL POWER. It may make
it physically easier to install the Bridgeboard if you disconnect some or all of the
equipment connected to the A2000. Before you try to operate the unit, be sure to read
all the installation and setup instructions in the Bridgeboard users guide, and reconnect
any equipment you may have disconnect.
Where the Bridgeboard Goes:
The Bridgeboard plugs into the internal expansion slot area located at the left of the
A2000.
There are five slots on the Amiga System bus and four slots on a secondary bus that is
IBM PC/XT-compatible. Two pairs of slots (a pair being one slot on the Amiga bus and
one slot on the IBM bus) are physically situated to allow the Bridgeboard to be inserted.
Bridge
Slots
Amiga 100 Pin
Slots
Bridge
Slots
d-QOO-c
XT-Compatible Slots
AT-Compatible Slots
Amiga 86 Pin
Slot
n- m i- c z i-
i i —2
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(Äqeg) J<ne|niu3-j.V
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Chapter11
J2
Function: Speaker (Signal with 33R serial resistor)
Po ition: main board
J4
Function: enable/disable onboard FDC
Po ition: main board
onboard FDC
enabled onboard FDC
disabled
J5
Function: enable/disable 384 above memory
Po ition: baby board
above memory
enabled above memory
disabled
J6
Function: floppy disk select
Po ition: baby board
PS/2 type
1.44 Mbyte AT type
1.2/1.44
J7
Function: test connector
Po ition: main board
J13
Function: battery connector for RTC
Po ition: main board
J14
Function: video startup mode select
Po ition: baby board
monochrome color
11—4
Chapter 11
JS1A / JSlB
Function: DMA speed select
Po ition: main board
JS1A closed, JSlB open : DMA works at sysclock/2 speed
(default)
JSlB closed, JS1A open : Dma works at sysclock speed
JS2A / JS2B
Function: RAS to CAS Signal delay select
Po ition: baby board
JS2A closed, JS2B open : RAS to CAS delay is 50 ns (default)
JS2B closed, JS2A open : RAS to CAS delay is 75 ns
JS4A / JS4B
Function: Onboard or external 16MHz Oscillator select
Po ition: baby board
JS4A closed, JS4B open : selects 16 MHz for FDC from main
PCD (default)
JS4B closed, JS4A open : selects 16 MHz from U69
(JS4B should only be closed, if
oscillator U69 is stuffed)
JS5A / JS5B
Function: BIOS EPROM type select
Po ition: baby board
JS5A closed, JS5B open : 27128 EPROM (default)
JS5B closed, JS5A open : 27256 EPROM
11 5
Chapter11
JS7A / JS7B / JS7C / JS7D
Function: APU 80287 speed select
Po ition: main board
JS7B / JS7D closed
JS7A / JS7C open
JS7B / JS7D open
JS7A / JS7C closed
JS8A / JS8B
Function: real time clock bus timing select
Po ition: baby board
JS8A closed, JS8B open : 80286 timing (default)
JS8B closed, JS8A open : 27256 MOTOROLA timing
: APU runs at sysclk speed (default)
: APU runs at sysclk/2 speed
JS9
Function: real time clock standby mode
Po ition: baby board
JS9 closed : standby mode (default)
JS9 must be closed
JS10A / JS10B
Function: real time clock bus timing select
Po ition: baby board
JS10A closed, JS10B open : selects FE 3000 A (default)
JS10B closed, JS10A open : selects FE 3000 (8MHz Version)
JS11
Function: FDC write precompensation select
Po ition: baby board
JS11 open : selects 125 ns (default)
JS11 closed : selects 187 ns
JS12
Function: FE 3000 / FE 3000 A select switch
Po ition: main board
JS12 open : selects FE 3000 A (10MHz Version)
(default)
JS12 closed : selects FE 3000
1 1 -6
P A R T O . D E S C R I P T I O
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LTR ZO E DESCRIPTIO DATE APPROVED
/AD'/A/JdE £NQ,W£E3fUG RELEASE 1-483 •j: h-fücrS
1. S H E E T O F S IZ E
ASSY DW G
NOTES:
© 1S83 CCMMGEGRE AI'IGA INC.
Information ccntained HEREIN IS THE unpusushed and
cc ;f:do;tial frcpcrty cf cav.Dvcf.z am:g.n :uz. use.
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11—8
PART O. DESCRIPTIO
380690 -01 CB ASSY. A2286
REVISIONS
LTR ZONE DESCRIPTIO DATE A ROVED
1ADVANCE ENGINEERING RELEASE
o
SHEET 5 OE
ASSY DWG 5 SIZE C
C.A.D. GENERATED OTES:
NO MANUAL CHANGES TO BE MADE
TO THIS DOCUMENT.
© 1988 CQMmODORE AMIGA INC.
I FORMATIO CO TAI EO HEREI IS THE U PUBUSHED A O
CO FIOE TIAL PROPERTY OF COMMCDORE AMIGA I C. USE.
REPROCUCTIO OR OISCLOSURE OF THIS I FORMATIO
WITHOUT THE PRIOR DRITTE PERMISSIO OF COMMOOORE
IS STR1CTLY PROHIBITED. ALL RIGHTS RESERVED
com m odore TITLE: CB ASSY. AT EMULATOR A2286 DRAWN ÖY:
J. HOO ER
CHKD:
—'Ö7TI—E GR:
8 -2 9 -8 8 APPR:
S2E DRAYrt G UMBER
B380690
hMT
.
1
.
~~(5F
Chapter 11
QUA T!TY REQD PER
PART/DASH O.
ITEM
in
oART NUMBER DESCRI TION REF DES
BEND
NOTES
- 0 1
REF 01 380691 -01 SCHEMATIC
REF 02 380693 -01 FABRICATION DRAWING
* E F 03 380692 -01 CB ARTWORK
04
05
1 06 380676 -01 IC, AL mU21 ROD. OF AL 16L8B
107 380675 -01 IC, AL 3ZI U10 ROD. OF AL 16R4
1 08 380674 -01 IC, AL 3ZE U23 ROD. OF AL 16R4
1 09 380673 -01 IC, AL mU5 ROD. OF AL 20L10
1 10 380672 -01 IC, AL 3Zm U6 ROD. OF AL 20L10
411 390083 -02 IC, 41464 U62, U63, U64, U65
112 380282 -02 IC, 80286, LCC, 8 MHz U1 ROD. OF AL 20L10
S 13 380282 -01 IC, 80286, IN GRID, 8 MHz Ul SUB. FOR ITEM 12
-14 380282 -03 IC, 80287 U2 O TIONAL
“ 1 115 380658 -01 IC, ADDRESS BUS TRANSLATER U68
516 380230 -03 IC, ALS245 U15, U17, U20, U22, U24
217 380230 -04 IC, ALS573 U14, U16 |
318 380230 -05 IC, ALS646 Ul 2, Ul 3, Ul 9
119 380695 -01 IC, DATA BUS TRANSLATOR U67
120 324667 -01 IC, DELAY-LINE, 150ns, 5 TA S U59
121 318066 -01 IC, F00 U74
122 380280 -02 IC, F125 U8
223 390081 -01 IC, F74 U7, U70
1 24 390316 -01 IC, FE3000A U3
1 25 390317 -02 IC, FE3010B U4
S26 3S0317 -01 IC, FE3010 U4 SUB. FOR ITEM 26
127 390110 -01 IC, F04 U73
228 380227 -58 IC, HCT257 U60, U61
1 29 901521 -20 IC, LSI 25 U18
1 30 901521 -15 IC, LS133 U66
1 31 901521 -16 IC, F138 U11
132 901521 -13 IC. LS244 U9
33
34
35
commodore TITLE :
CB ASSY. AT EMULATOR, A2286 DRAW BY :
J. HOO ER
DATE E GR : DAT E SIZE
BDRAWI G UMBER
380690 REV
1
8 -2 8 - 8£
CHKD : APPR : SHEET 2 OF 5
Chapter 11
CUANTITY RCQD ER
ART/DASH NO.
ITEM
CO
oART NUMBER DESCRI TION REF DES
BEND
NOTES
-01
1 36 900558 -01 CRYSTAL 14.318 MHz Ql
37
138 325566 -10 OSCILLATOR HYBRID 16.000 MHz 0SC1
39
140 324219 -01 TRANSISTOR BC327 TI
41
42 RESISTOR NETWORKS
143 902410 -10 1 .OK, 10 IN* RN16
144 902422 -03 33/i , 8 IN, 4 ELEMENT, SIL RN3
145 902417 -09 470/i, 5 IN RN12
5 46 902412 -05 4.7K, 9 IN RN4, RN5, RN9.RN11, RN17
147 902410 -08 4.7K, 10 IN RN1
348 902422 -06 68R, 8 IN RN6 - RN8
49
I50 RESISTORS 5% © 1/4 WATT
I251 901550 -01 RESISTOR, CARBON FILM, 1K OHM R4, R8
252 901550 -84 RESISTOR, CARBON FILM, IM OHM RI, R3
653 901550 -19 RESISTOR, CARBON FILM, 4.7K OHM R6. R9, R24 - R26, R28 |
154 901550 -105 RESISTOR, CARBON FILM, 33 OHM R10
255 901550 -94 RESISTOR, CARBON FILM, 68 OHM R2, R27
56
57 CA ACITORS
18 58 900022 -01 CA ACITOR, .22uF C1 - C6, C9, CIO, C23, C59, C62 - C65, C67, C68, CI01
21 59 900020 -01 CA ACITOR, O.luF C7, C8, C11 - C20, C22, C24, C60, C61, C66, C70, C73, C74, C103
19 60 251070 -22 CA ACITOR, 10OpF C104, C200 - C217 |
161 900019 -07 CA ACITOR, 47nF C100
262 900019 -17 CA ACITOR, 47pF C102, C111
263 900100-27 CA ACIOTR, 47uF C300, C301
464 900100 -25 CA ACITOR, 10uF C302 - C305
65
66 CONNECTORS
167 903345 -25 CONNECTOR, 50 IN DUAL ROM MALE J15
168 903345 -28 CONNECTOR, 62 IN DUAL ROM MALE J19
169 903326 -02 CONNECTOR, 2 IN SING. ROW MALE J2
170 903345 -18 CONNECTOR, 36 IN DUAL ROW MALE J20
com m odore TITLE :
PCB ASSY. AT EMULATOR, A2286 DRAWN BY :
J. HOO ER
DATE EN GR : DATE SIZE
BDRAW1NG NUMBER
380690 REV
1
8—28—88
CHKO : A R : SHEET 3 OF 5
Chapter 11
QUANTITY REQD ER
ART/DASH NO.
ITEM
LO
QART NUMBER DESCRI T10N REF DES
BEND
NOTES
01
—171 903326 -03 CONNECTOR, 3 IN SING. ROW MALE J4
172' 9033-26 -08 CONNECTOR, 8 IN SING. ROW MALE J7 REMOVE IN 6
73
74 SOCKETS
175 380287 -01 IC SOCKET, 68 IN LCC U1
S76 380286 -01 IC SOCKET, 68 IN GRID U1 SUB. FOR ITEM 75
177 904150 -06 IC SOCKET, 40 IN DIL U2
-478 3'90185 -01 IC SOCKET 84 IN LCC U3, U4‘, U67, LF68
379 904150 -08 IC SOCKET, 20 IN DIL U10, U21, U23
280 904150 -04 IC SOCKET, 24 IN DIL U5, U6
81
182 380333 -01 JUM ER J4
83
184 380120 -08 EX ANSION CARD ANEL
, i 85
286 906800 -01 SCREW, M3 X 4 LG.
GO 87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
com m odore TITLE :
CB ASSY. AT EMULATOR, A2286 ORAWN BY :
J. HOO ER
CHKO
EN GR :
A R :
SIZE
BDRAW1NG NUMBER
380690
SHEET 4 OF 5
REV
1
Chapter 1
43
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<-
Chapter11
PART NO. DESCRIPTION
380695—Ot PCB ASSY., AT SANDWICH A2286
REVISIONS
LTR ZO E DESCRIPTIO DATE APPROVED
/
k;
5
§
i
1
1
m eö
Ol
C.A.D. GENERATED
NO MANUAL CHANGES TO 8E MADE
TO THIS DOCUMENT.
© 1988 COMMODORE AMiGA, INC.
INFORMATION CONTAINED HEREIN IS THE
UN U0USHED AND CONFIDENTIAL RO ERTY OF
COMMODORE AMIGA. INC. USE, RE RODUCTION
OR DISCLOSURE OF THIS INFORMATION W1THOUT
THE RIOR WRITTEN ERMISSION OF COMMODORE
IS STRICTLY ROHIBITED. ALL RIGHTS RESERVED.
SHEET OF
ASSY DWG
NOTES:
SIZE
------
XZf— E GR: SIZE
8-30-68 APPR: n
O
C o m m o d o r e TITLE: PCB ASSY., AT SANDWICH A2286 DRAW BY:
C. SANTILLANA
CHKD:
DRAWI G UMBER
380694
SHEET 1 OF 4
ChapterU
QUA TITY REQD PER
PART/DASH O.
ITEM
m
oART NUMBER DESCRIPTI0 REF DES OTES
12 11 10 09 08 07 06 05 04 03 02 01
1
/2380697-0/ PCB BBV. 8
3
/4380686-0/ PAL I U33 PBOB. OF PAL Z6L8B
15380684-0/ PAL III U55 PBOB. OF PAL Z6L8B
16380685-0/ PAL II U58 PBOB. OF PAL Z6L8B
1739034/—0/ IC, 8742 U72
18390323-0/ IC, 4069 U53
/9380683-0/ BIOS, AT-BMULATOB HIGH U56 PBOB. OF 27/28 Z50 ns
/10 380682-0/ BIOS, AT-BMULATOB LOW U57 PBOB. OF 27/28 Z50 ns
411 380223-0/ IC, 4/256 BIP U38,U39,U44,U45 | f20 ns
812 390365-0/ IC, 44256 BIP U34—U37, U40—U43 f20 ns
213 380230-03 IC, ALS245 U29, U30
/14 380230-04 IC, ALS573 U69
| 11—16
/15 3/8066-0/ IC, B00 U32
/16 390/Z0-0Z IC, B04 U46
/17 390092-03 IC, F08 U47
/18 39008/—0/ IC, P74 U48
219 380280-03 IC, FZ 58 U25, U26
/20 380280-04 IC, F280 U27,U28
/21 390322-0/ IC, LMfOCN ( IL) U54
/22 390305-0/ IC, MCf468fß/A U52
/23 390304-0/ IC, WB37C65 U7I
24
/25 325566-/0 OSC HYBBIB 16 MHz 0SC3 (NOT ffSS )
/26 325566-/7 OSC HYBBIB 9.6 MHz 0SC2
/27 900560-02 CBYSTAL 32.768 MHz Q2
28
29 29 900022-0/ CAPACITOB, .22 zlFC25-C3Z, C33-C45, C52, C55-C58, C7Z, C72, C/09, C//0,
730 900020-0/ CAPACITOB, 0./ nF C32, C46, C48, C54, C69, Cf 07, Cf 08
/31 25/069-/6 CAPACITOB, 4.7 nF C/05
/32 900402-/5 CAPACITOB, TANTAL, ZOuF, Z6 V C306
433 390/0/-0/ CAPACITOB, 47 nF C307-C3/0
/34 25/07/-/5 CAPACITOB, 27 p F CZ 06
35
Consmodore TITLE:PCB ASSY., AT SANWICH A2286 DRAW BY:
C. SANTILLANA
DATE E GR: DATE SIZE
RORAWI G UMBER
380694 REV j
7
8-30-88
CHKD: APPR: SHEET 2 OF 4
Chapter
QUA TITY REQD PER
PART/DASH O.
ITEM
in
QPART UMBER DESCRIPTIO REF DES
BE D
OTES
12 11 10 09 08 07 06 05 04 03 02 01
36
/37 901550-20 B F SIS TOB, 1K OHM B14
r38 901550-83 BFS/STOB, 2M OFM B12
/39 25f 068-f 67 BFSJSTOB, 4. 7M OHM B15
/40 902410-08 BFSISTOB NFTWOBK, 4K OHM, 10 PJN BN10
441 902412-05 BFSJSTOB NFTWOBK, 4K OHM, 9 PJN BN19—BN21,BN23
142 901550-123 BFSJSTOB, 6.8M OHM B13
343 901550-20 BFSJSTOB, 10K OHM B 17—B 19
/44 901550-105 BFSJSTOB, 33 OHM B33
/45 902422-03 BFSJSTOB NFTWOBK, 33 OHM, 8 PJN RN2, RN fl, RN 15
/46 901550-10 BFSJSTOB, 51K OHM B20
/47 902441-11 BFSJSTOB NFTWOBK, 150 OHM BN18
/48 901751-63 BFSJSTOB, 21 OK OHM, 1% B16
/49 901550-61 BFSJSTOB, 22 OK OHM B32
I50
I251 900850-01 BJOBF, 1N4148 B1,B2
■nI152 324220-02 TBANSJSTOB, BC237B T3
/53 324220-03 TB4NSJST0B, BC307 T2
54
/55 380678-01 JC FLAY UNF, 125 ns, 5 TABS U31
356 902/50-05 JC SOCKFT, 28 PJN BJL U57, U65
157 904150-06 JC SOCKFT, 40 PJN BJL U72
/58 904150-08 JC SOCKFT, 20 PJN BJL U33, U55, U58
59
360 903326-03 CONNFCTOB, 3 PJN, SJNCLF BOW, MALF J5,J6,J14
/61 903345-17 CONNFCTOB, 34 PJN, BUAL BOW, MALF J12 BFMOVF PJN 3
/62 903326-04 CONNFCTOB, 4 PJN, SJNCLF BOW, MALF J13 BFMOVF PJN 2
/63 250642-25 CONNFCTOB, 50 PJN, BUAL BOW, FFMALF J16
/64 250642-31 CONNECTOR, 62 PIN, UAL ROfT, F E MALE J17
/65 250542-18 CONNECTOR, 36 PIN, UAL ROW, PEMALE J18
366 390186-01 JUMPFB J5,J6,J14
67
68
69
70
Corcsmociore TITLE:
PCB ASSY. AT SANDWICH A2286 DRAW BY:
C. SANTI ANA
DATE E GR: DATE SIZE
R
DRAWI G UMBER
380694 REV
7
»/Jl/MS
CHKD: APPR: t j SHEET 3 OF 4
Chapter 11
Chapter11
Table of contents
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