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tHE cOMMODORE mODEL b SERVICE MANUAL AND SCHEMATIC DIAGRAMS

sUBDIRECTORIES

DRIVES@
dISK DRIVES
FIRMWARE@
sYSTEM FIRMWARE

fILES

314010-06-I.GIF 1998-03-29 29724
sERVICE MANUAL, b MODEL COMPUTER (jAN. 1985, pn-314010-06), TITLE PAGE
314010-06-II.GIF 1998-03-29 27628
sERVICE MANUAL, b MODEL COMPUTER, TABLE OF CONTENTS
314010-06-P1.GIF 1998-03-29 58149
pAGE 1: BLOCK DIAGRAM
314010-06-P2.GIF 1998-03-29 46741
pAGE 2: b MODEL PARTS LIST
314010-06-P3-LEFT.GIF 1998-03-29 60694
314010-06-P3-RIGHT.GIF 1998-03-29 79404
pAGE 3: 8256048 BOARD LAYOUT
314010-06-P4.GIF 1998-03-29 74105
pAGE 4: 8256048 pcb PARTS
314010-06-P5.GIF 1998-03-29 66252
pAGE 5: 8256048 pcb PARTS, CONTINUED
314010-06-P6-LEFT.GIF 1998-03-29 40857
314010-06-P6-RIGHT.GIF 1998-03-29 42640
pAGE 6: KEYBOARD MATRIX
4256004-01-LEFT.GIF 1998-03-29 35712
4256004-01-PARTS.GIF 1998-03-29 58167
4256004-01-RIGHT.GIF 1998-03-29 44598
sWITCHING POWER SUPPLY
8088.GIF 2002-03-05 155989
8088.TXT 2002-04-19 10991
tHE 8088 CO-PROCESSOR BOARD FOR b-SERIES MACHINES. rEVERSE ENGINEERED BY rUUD bALTISSEN HTTP://RUUD.C64.ORG.
8256043-01OF14-LEFT.GIF 1998-03-29 61535
8256043-01OF14-RIGHT.GIF 1998-03-29 56042
{CBM-J}p, ADDRESS & DATA BUFFERS, BUS ARBITRATION
8256043-02OF14-LEFT.GIF 1998-03-29 27636
8256043-02OF14-RIGHT.GIF 1998-03-29 47170
MASTER TIMING
8256043-03OF14-LEFT.GIF 1998-03-29 40539
8256043-03OF14-RIGHT.GIF 1998-03-29 28812
dram ADDRESS & REFRESH
8256043-04OF14-LEFT.GIF 1998-03-29 31695
8256043-04OF14-RIGHT.GIF 1998-03-29 29054
dramS, SEGMENTS 1-2
8256043-05OF14-LEFT.GIF 1998-03-29 31825
8256043-05OF14-RIGHT.GIF 1998-03-29 29841
dramS, SEGMENTS 3-4
8256043-06OF14-LEFT.GIF 1998-03-29 27122
8256043-06OF14-RIGHT.GIF 1998-03-29 32195
rom ARRAY, 1KW8 STATIC ram
8256043-07OF14-LEFT.GIF 1998-03-29 28442
8256043-07OF14-RIGHT.GIF 1998-03-29 43144
SYSTEM DECODE
8256043-08OF14-LEFT.GIF 1998-03-29 26866
8256043-08OF14-RIGHT.GIF 1998-03-29 32189
crtc, VIDEO SHIFT REGISTER
8256043-09OF14-LEFT.GIF 1998-03-29 22887
8256043-09OF14-RIGHT.GIF 1998-03-29 26607
VIDEO ram, ADDRESS MUX, LATCH
8256043-10OF14-LEFT.GIF 1998-03-29 45846
8256043-10OF14-RIGHT.GIF 1998-03-29 42104
KEYBOARD PORT, rs232c
8256043-11OF14-LEFT.GIF 1998-03-29 62363
8256043-11OF14-RIGHT.GIF 1998-03-29 50878
USER i/o PORTS, ieee
8256043-12OF14-LEFT.GIF 1998-03-29 53904
8256043-12OF14-RIGHT.GIF 1998-03-29 50410
sid, DOT CLOCK OSCILLATOR, EXPANSION CONNECTOR
8256043-13OF14.GIF 1998-03-29 27850
VIDEO OUTPUT, POWER INDICATOR
8256043-14OF14.GIF 1998-04-17 81574
i.c. COUNT, POWER CONSUMPTION
8256059-01.GIF 1998-05-28 159301
8256059-02.GIF 1998-06-02 104788
8256059-03.GIF 1998-06-02 104071
8256059-04.GIF 1998-06-02 91274
8256059-05.GIF 1998-05-29 92943
8256059-06.GIF 1998-05-29 81230
8256059-07.GIF 1998-05-29 97112
8256059-08.GIF 1998-05-29 102877
8256059-09.GIF 1998-06-01 76584
8256059-10.GIF 1998-06-02 116642
8256059-11.GIF 1998-06-02 150061
8256059-12.GIF 1998-06-02 136422
tHESE SCHEMATICS SEEM TO BE QUITE IDENTICAL WITH 8256043.
readme 1998-10-20 1169
gENERAL INFORMATION ABOUT THE cOMMODORE mODEL ii COMPUTERS.

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