Sharp PC-4741 Service Manual page 30

4024
&
4044
OUTLINE DIMENSIONS
Outline Dimensions
±
.010"
Weight
.75" x 4.00" x 5.15"
<1 pound
ENVIRONMENTAL CHARACTERISTICS
Temperature
Operating
Non Operating
Thermal Gradient
Humidity
Operating
Non Operating
Maximum Wet Bulb
Altitude (relative to sea level)
Operating
Non~operating
(maximum)
5'C to 55"C
-40"C to 60"C
20'C per hour maximum
8% to 80% non condensing
8% to 80% non condensing
26"C
-200 to 10,000 teet
40,000 feet
RELIABILITY AND MAINTENANCE
MTBF
MTIR
Preventative Maintenance
Component Design Life
Data Reliability
20,000 hours (POH)U
10 minutes typical
None
5
years
.:::1 non recoverable error in 10
12
bits read
*:t:population is minimum of 100 units
SHOCK AND VIBRATION
Shock (1/2 sine pulse)
Vibration (swept sine, 1 octave per minute)
(Measured without shock isolation)
Non operating shock 7SG's 11 ms (without non
recoverable errors)
Non operating vibration
5·62 HZ
63·500 HZ
Operating shock
Operating vibration
5·27 HZ
28·500 HZ
MAGNETIC FIELD
.020" double amplitude
4 G's O-peak
5 G's, 11 ms (without non
recoverable errors)
.010" double amplitude
.5 G's O·peak (without non
recoverable errors)
The externally induced magnetic flux density may not exceed 6 gauss
as measured at the disk surface.
ACOUSTIC NOISE
40 dBA max. at 1 meter
PIN DESCRIPTIONS
The following table describes all of the pins on the Task File Interface.
-29-
PIN SIGNAL
01 HOST BESET
03 +HOST DATA 7
05 - +HOST DATA 6
07 - +HOST DATA 5
09 - +HOST DATA 4
11 - +HOSTDATA3
13 - +HOST DATA 2
15 - +HOST DATA 1
17 - +HOST DATA 0
19 - GND
21 - RESERVED/AEN
23 - -HOST lOW
25 - -HOST lOR
27 - RESERVED/DAK
29 - RESERVED/DRO
31 - +HOST IR014
33 - +HOST ADDR 1
35 - +HOST ADDR 0
37 - -HOST CSO
39 - -HOST SLY/ACT
41 - +5V LOGIC
43 - GND
PIN SIGNAL
02 GND
-
P C--4741
04 +HOST DATA 8
06 - +HOST DATA 9
08 - +HOSTDATA 10
10
~
+HOSTDATA 11
12 - +HOST DATA 12
14 - +HOST DATA 13
16 - +HOST DATA 14
18 - +HOST DATA 15
20 - KEY
22 - GND
24 - GND
26 - GND
28 - +HOST ALE
30 - GND
32 - -HOST 1016
34 - -HOST PDIAG
36 - +HOST ADDR 2
38 - -HOST CS1
40 - GND
42 - +5V MOTOR (unregulated)
44 - -XT/AT