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Fujitsu M255XK Customer Engineering Manual page 80

5 1/4" mini-flexible disk drive
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Table of Contents
5.4 MAIN CIRCUIT CARD COMPONENTS
Refer to Table 5-4
Table 5-4 Listing of Main Circuit Card Components
Drawing
Number
Name of Part
Quantity
Designation
JA2-5259
M2552K Circuit Card Assembly
1
Note
JA2-5242
M2553/54K Circuit Card Assembly
1
Note
JA3-5373
M2553K Rev 3 Circuit Card Assembly
1
Note
J4-5534I
M2552A Circuit Card Label
1
N/A
J2-5260
M2552K Main Circuit Board
1
Note
J2-5208
M2553/54K Main Circuit Board
1
Note
M2553K Rev 3 Main Circuit Board
1
Note
JY4-0005
IC, M54578P
1
ICI
JY4-0542
IC, TD62503P
1
IC2
JY4-0554
IC, MB433M
1
IC3
JY4-0537
IC, HD7438
I
IC3
JY4-0595
IC, M53238P
I
IC3
JY4-0555
IC, MB74LS32
2
IC4,IC5
JY4-0551
IC, M74LS32P
2
IC4,IC5
JY4-0138
IC, MB74LS08
1
IC6
JY4-0529
IC, M74LS08P
I
IC6
JY4-0140
IC, MB74LS74A
I
IC7
JY4-0533
IC, M74LS74
1
IC7
JY4-0577
LSI, T5616
I
IC8
JY4-0136
LSI, CX20185
1
IC9
JY4-0152
C-MOS, 74HC08
I
ICIO
JY4-0l49
Filter, ZBF253D-"0l
2
L1, L2
JY4-01l5
Axial Lead Inductor
2
L3, L4
560 microhenry, LALO 3KH561K
. JY4-01l6
Axial Lead Inductor
2
L5, L6
100 microhenry, LALO 3KHIOIK
JY4-0l46
Ceramic Oscillator, 4 MHz
1
Xl
Note The Main Circuit Card is available at different revision levels, obtain the
correct Drawing Number from the replaced circuit card.
5-10
TS-021-013087 ••• 01

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