Notes : 1. As to the parts with an asterisk in the £>'ty column, select
appropriate one for the model.
2. As to the parts with model name of FD-55(L) in the Description column,
the parts is used only for the model._
*
3. For the DD motor Ass'y of FD-55CL) A or B, either of 14733730-00 and
-10 may be used.
(Mainly -10 is used at shipment).
For the stepping motor A s s 1y of FD-55(L) A or B , either of 14769070-00
and -50 may he used.
(Mainly -50 is used at shipment).
4. Pad 9B is attached for the adjustment of head touch (refer to item
4-4-9) and some models might not have it.
Usually,
double sided
FDDs have not 9B pad.
5. The head protector Ass'y applies only to the double sided models with
head load solenoid.
6. The shift lever (P/N 16802550-00) is used in all the models except
for CSS models.
P/N 16802592-00 is used only in the double sided
CSS models.
7. The parts number of the lever shaft A s s ‘y listed in the table is the
standard length.
Optional lever shaft Ass'y which length is different
should be designated with other parts number.
8. The head load solenoid Ass'y applies only to the models with head
load solenoid.
The CSS Ass'y applies only to the double sided models
without head load solenoid.
The head load solenoid Ass'y and the
CSS Ass'y will never be used together in a model.
9. The head carriage Ass'y is supplied in combination with two guide
shafts.
Be sure to replace the head carriage Ass'y-with these guide
shafts.
10. The parts number versions of the PCBA MFD control #B and the PCBA
front OPT vary depending on each model.
Refer to the name plate
of the actual PCBA mounted to designate the version.
11. fThe parts numbers of the front bezel Ass'y and the front lever Ass'y
are those of FD-55(L) standard color, black.
For designating the
other color, refer to the following table.
Optional designation of
colors than in the table or other forms, different parts numbers
should be used.
509
Summary of Contents for FD-55 Series
Page 7: ...SECTION 3 THEORY OF OPERATION 300...
Page 8: ...3 1 CONSTRUCTION AND FUNCTION 3 1 1 General Block Diagram Fig 301 General block diagram 301...
Page 23: ...Fig 308 Control circuit block diagram 316...
Page 40: ...SECTION 4 MAINTENANCE 4000...
Page 56: ...J4 J12 Option J9 J5 Top view of the FDD Fig 401 Types of connectors 4016...
Page 95: ...Note Refer to item 4 2 1 as to handling of the set screw 4057...
Page 102: ...k Key in Cl SET TMAX L Confirm as in item j 4064...
Page 104: ...Notch B position TP6 voltage 0 5V Max LED indicator Fig 422 Check of file protect sensor 4066...
Page 125: ...k Eject the level disk and release the Invert and ADD modes of the oscilloscope 4087...
Page 136: ...Fig 431 Adjustment track alignment 4098...
Page 153: ...Fig 436 Adjustment of index sensor 4115...
Page 172: ...Fig 440 Replacement of head pad 4134...
Page 176: ...Plate Fig 441 CSS Ass y and shift lever position 4138...
Page 177: ...SECTION 5 DRAWINGS PARTS LIST 500...
Page 179: ...r Fig 501 External view No l 502...
Page 181: ...PCBA DD motor servo Fig 503 External view No 3...
Page 182: ...Fig 504 External view No 4 505...
Page 183: ...Partis nrnnber of the FDD Fig 505 Extemal view No 5 506...
Page 188: ...Fig 506 Mechanical section break down 511...
Page 199: ...PCBA DD MOTOR SERVO PARTS LOCATION Type S i 522A...
Page 200: ...PCBA DD TOR SERVO PARTS LOCATION Type TO 522B...
Page 201: ...PCBA DD MOTOR SERVO PARTS LOCATION Type G 522C...
Page 202: ...PCBA DD MOTOR SERVO PARTS LOCATION Type T 522D...
Page 204: ...523B PCBA DO MOTOR SERVO SCHEMATIC Type K...
Page 205: ...o 523C i 1 PACB DD HOTOR SERVO SCHEMATIC Type G...
Page 206: ...CV 5 3 3 H 2SV 523D PC DD M o t o r SERVO SCHEMATIC Type T...
Page 207: ...PCBA MFD CONTROL B PARTS LOCATION PCB ISSUE A G 524A...
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Page 209: ...PCBA FRONT OPT PARTS LOCATION 525 PO I...
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