Commodore 1541 - Page 35

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P4,PWR LED
PWR
LED
PWR
LED
GND
REAO/YtfUTE --e---
0 SEL A
0 SH B
ON/off >-----
BYTE SYNC EN >-----
ENCODER /DECODER CLOCK-----
PAO -C ..
PAI ......
PAZ ,C ...
PA3 .....
12
10
•
311
19
26
27
2
>J
STEPO
STEP I
117RS
CLK
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YBI
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Y2
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0 LOAD 22~BIT SYNC
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oo~; ~==========================~---------------L-• -t>:
1
:
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ij ! SYNC 37----a,..~
3
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4
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YB2
YB3
PT, TRACK SELECT
•••-C ...
31
YB4
... ~ ... 32
Y85
PA6 :4 ..
34
YB6
PA7 .- .... 30
YB7
·~;L:r61A !
LwAITE pROf£ct
.......
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13 ......... 12------+~
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1/6 7417
R51
91
...
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1/6 74-06
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• -{>o-. -----
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UOIE
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tN4002
011
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82
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P5, DRIVE MOlOR
~---1 -[>-, _.._ ________ --I
-+12 V
OFF/ON
GNO
R39
22K
UOIA
1/6 7417
LEO ~13-t>o-12 --,v-----<
R40
UOIF 150
1/6 7408
P6. OPTICS
ERROR/ACCESS LED
N/C
~IC
N/C
6 N/C
+ov
~-------.------112 WRITE PROTECT
R44
1001<
+5V
7 NIC
10 N/C
8 + 5V
NIC
14 N/C
NIC
WRITE PROTECT LED
GNO
GNO
PB, READ/WRITE
._-------olf---9'--+-------t I HEAD A
------+-------..i---+-------1 5 HEAD B
2
kEY
L...1----+-----------+-------t 3 BIAS
L-----------------+-----+------------t-------1 4 BIAS
Figure F-2.
Disk Controller P.C.Bd. Schematic
2
@ COPYRIGHT 1984 MICHAEL G. PEL TtER
(Sheet
of 2)
@ COPYRIGHT iw.
Page
F-11
' ........... _.
11. PH TIE