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DTF TAPE DRIVE
GY-8240UWD
GY-8240FC
MAINTENANCE MANUAL
1st Edition (Revised 2)
Serial No. 10001 and Higher


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GY-8240UWD
GY-8240FC
! WARNING
This manual is intended for qualified service personnel only.
To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that
contained in the operating instructions unless you are qualified to do so. Refer all servicing to
qualified service personnel.
! WARNUNG
Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt.
Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden. Um die
Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei
Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen. Andere als die angegeben
Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung
dazu besitzen.
! AVERTISSEMENT
Ce manual est destiné uniquement aux personnes compétentes en charge de l'entretien. Afin
de réduire les risques de décharge électrique, d'incendie ou de blessure n'effectuer que les
réparations indiquées dans le mode d'emploi à moins d'être qualifié pour en effectuer d'autres.
Pour toute réparation faire appel à une personne compétente uniquement.
Attention-when the product is installed in Rack:
1. Prevention against overloading of branch circuit
When this product is installed in a rack and is
supplied power from an outlet on the rack, please
make sure that the rack does not overload the supply
circuit.
2. Providing protective earth
When this product is installed in a rack and is
supplied power from an outlet on the rack, please
confirm that the outlet is provided with a suitable
protective earth connection.
3. Internal air ambient temperature of the rack
When this product is installed in a rack, please make
sure that the internal air ambient temperature of the
rack is within the specified limit of this product.
4. Prevention against achieving hazardous
condition due to uneven mechanical loading
When this product is installed in a rack, please make
sure that the rack does not achieve hazardous
condition due to uneven mechanical loading.
For GY-8240FC:
Laser Diode Properties
Wave length
: 850 nm
Laser output power : 0.398 mW (-4dBm) max.
CAUTION
Use of controls or adjustments or performance of
procedures other than those specified herein
may result in hazardous radiation exposure.
CLASS 1
LASER PRODUCT
LASER KLASSE 1
PRODUKT
This DTF Tape Drive is classified as a CLASS 1 LASER
PRODUCT. The CLASS 1 LASER PRODUCT label is
located on the rear panel.
Dieses DTF-Bandlaufwerk ist klassifiziert nach LASER
KLASSE 1 PRODUKT. Das LASER KLASSE 1
PRODUKT-Label befindet sich auf der R
ückseite.


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1
GY-8240UWD
GY-8240FC
Table of Contents
Manual Structure
Purpose of this manual .............................................................................................. 7
Relative manual ......................................................................................................... 7
Contents ..................................................................................................................... 7
Trademarks ................................................................................................................ 8
1. Service Overview
1-1.
Removal/Installation of Cabinet ................................................................. 1-1
1-2.
Cassette Compartment Removal/Installation .............................................. 1-2
1-3.
Main Parts Layout ....................................................................................... 1-4
1-3-1.
Main Mechanical Parts Layout .................................................. 1-4
1-3-2.
Printed Circuit Boards Layouts .................................................. 1-5
1-3-3.
Function Descriptions and Sensors Layouts .............................. 1-7
1-4.
Internal Switch Setting ................................................................................ 1-9
1-5.
Connector/Cable Information .................................................................... 1-10
1-6.
Taking Out the Cassette in Tape Slacking ................................................ 1-14
1-7.
Fixtures and Measuring Equipment for Adjustment ................................. 1-15
1-7-1.
Fixtures ..................................................................................... 1-15
1-7-2.
Measuring Equipment .............................................................. 1-16
1-7-3.
Alignment Tapes ...................................................................... 1-17
1-8.
Power Block .............................................................................................. 1-18
1-8-1.
Switching Regulator Replacement ........................................... 1-18
1-8-2.
Fan Motor (Power Supply) Replacement ................................. 1-19
1-8-3.
Voltage and Power Requirements ............................................ 1-19
1-8-4.
Power Cord ............................................................................... 1-20
1-9.
Replacement of the Boards ....................................................................... 1-21
1-9-1.
Index ......................................................................................... 1-21
1-9-2.
DPR-160 and FM-75 Boards Replacement .............................. 1-22
1-9-3.
IF-780 and SCS-28, FC-82 Boards Replacement .................... 1-22
1-9-4.
CCM-33 Board Replacement ................................................... 1-23
1-9-5.
DSP-90 Board Replacement .................................................... 1-23
1-9-6.
CT-205 Board Replacement ..................................................... 1-24
1-9-7.
HN-258 Board Replacement .................................................... 1-24
1-9-8.
SV-205 Board Replacement ..................................................... 1-25
1-10. Functions of LED Indicators on Circuit Boards ....................................... 1-27
1-11. Line Mode ................................................................................................. 1-28
1-11-1. Overview .................................................................................. 1-28
1-11-2. Starting/Ending the Line Mode ................................................ 1-29
1-11-3. Switch Function ....................................................................... 1-30
1-11-4. Setting Mode ............................................................................ 1-31


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2
GY-8240UWD
GY-8240FC
1-12. SCSI Control Software scsitool.exe .......................................................... 1-33
1-12-1. Operating Environment ............................................................ 1-33
1-12-2. Connection ............................................................................... 1-33
1-12-3. Starting ..................................................................................... 1-34
1-12-4. Ending ...................................................................................... 1-34
1-12-5. Functions .................................................................................. 1-35
1-12-6. SCSITOOL-AGING Command ............................................... 1-47
1-13. General Function Check Using the SCSI Control Function ..................... 1-53
1-14. Revision Label .......................................................................................... 1-57
1-14-1. Revision Label for Firmware/Hardware .................................. 1-57
1-14-2. Revision Label for Board ......................................................... 1-58
1-15. Update of the Firmware ............................................................................ 1-59
1-15-1. Update with the Serial Port ...................................................... 1-59
1-15-2. Update with DTF-2 Cassette .................................................... 1-61
1-15-3. Update with the Network (ftp) ................................................. 1-62
2. Periodic Maintenance and Inspection
2-1.
Periodic Check ............................................................................................ 2-1
2-1-1.
Hours Meter ............................................................................... 2-1
2-1-2.
Periodic Check List .................................................................... 2-2
2-2.
Cleaning ...................................................................................................... 2-4
2-2-1.
General Information for Cleaning .............................................. 2-4
2-2-2.
Tape Running Surface of Upper Drum and
Rotary Heads Cleaning .............................................................. 2-5
2-2-3.
Tape Running Surface of Lower Drum and
Lead Surface Cleaning ............................................................... 2-6
2-2-4.
Stationary Heads Cleaning ......................................................... 2-7
2-2-5.
Tape Running System and Tape Cleaner Cleaning .................... 2-8
2-2-6.
Cassette Compartment and Cassette Supports Cleaning ............ 2-9
3. Replacement of Mechanical Parts
3-1.
General Information for Parts Replacement ............................................... 3-1
3-1-1.
Notes .......................................................................................... 3-1
3-1-2.
Index ........................................................................................... 3-2
3-1-3.
Threading End Mode and Unthreading End Mode .................... 3-4
3-1-4.
L Cassette Position and S Cassette Position .............................. 3-6
3-2.
Upper Drum Assembly Replacement .......................................................... 3-8
3-3.
Drum Assembly Replacement ................................................................... 3-14
3-4.
Brush Slip Ring Assembly Replacement .................................................. 3-20
3-5.
W Cleaner Assembly Cleaning Roller Replacement ................................ 3-23
3-6.
CTL/TC Head Cleaner Replacement ........................................................ 3-27
3-7.
CONFI Head Assembly Replacement ...................................................... 3-30


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3
GY-8240UWD
GY-8240FC
3-8.
CTL/TC Head Replacement ...................................................................... 3-32
3-9.
Pinch Roller Replacement ......................................................................... 3-36
3-10. Pinch Press Assembly Replacement ......................................................... 3-39
3-11. Capstan Motor Replacement ..................................................................... 3-41
3-12. Reel Table Assembly Replacement and Adjustment ................................ 3-44
3-12-1. Reel Table Assembly Replacement ......................................... 3-44
3-12-2. Reel Table Height Adjustment ................................................. 3-46
3-12-3. Reel Brake Clearance Check .................................................... 3-48
3-12-4. Reel Brake Release Amount Confirmation .............................. 3-49
3-13. Brake Lining Replacement ........................................................................ 3-51
3-14. Reel Motor Plate Assembly Replacement ................................................. 3-52
3-15. Reel Shift Motor Replacement .................................................................. 3-58
3-16. Reel Shift Gear Replacement .................................................................... 3-60
3-17. Tape Guide Replacement .......................................................................... 3-62
3-18. Tape Cleaner Replacement ....................................................................... 3-63
3-19. Gear Box Assembly Replacement ............................................................ 3-64
3-20. Threading Ring Assembly Replacement ................................................... 3-67
3-21. S Tension Regulator Assembly Replacement ........................................... 3-73
3-22. T Tension Regulator Assembly Replacement ........................................... 3-75
3-23. T Drawer Assembly Replacement and Adjustment .................................. 3-78
3-23-1. T Drawer Assembly Replacement ........................................... 3-78
3-23-2. Slant Guide Slantness Adjustment ........................................... 3-85
3-24. Cassette Compartment Motor Replacement .............................................. 3-89
3-25. Fan Motor Rear Panel Replacement ......................................................... 3-93
4. Tape Path Alignment
4-1.
Genaral Information for Tape Path Adjustment .......................................... 4-1
4-1-1.
Notes .......................................................................................... 4-1
4-1-2.
Preparation ................................................................................. 4-2
4-1-3.
Parts Location of the Tape-running System ............................... 4-2
4-1-4.
Locking Compound .................................................................... 4-3
4-2.
CTL/TC Head Zenith Adjustment .............................................................. 4-4
4-3.
Tape Running Adjustment .......................................................................... 4-6
4-4.
Tracking Adjustment ................................................................................. 4-12
4-5.
CTL/TC Head Height Adjustment ............................................................ 4-19
4-6.
CTL/TC Head Azimuth Adjustment ......................................................... 4-22
4-7.
CTL/TC Head Position Adjustment .......................................................... 4-25
4-8.
Time Code Level Adjustment in Rev Mode ............................................. 4-28
4-9.
CONFI Head Height Adjustment .............................................................. 4-31
4-10. Drum Head Height Check ......................................................................... 4-34
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