BOT/EaT Sensor Assembly Removal and Installation REMOVAL

Use the following procedure for removing the BOT/EOT sensor assembly.

1. Remove the transport as outlined in paragraph 8.4 (Removal).

2. Remove the cassette holder faceplate by removing the four screws (two on each side) that secure it to the cassette holder assembly.

3. Remove the four BOT/EOT sensor assembly leads from the pins of con-nector J1 (See Table 8-3) by grasping the body of the pin concon-nectors and sliding them off the end of the pins. Label each as it is removed.

NOTE: If necessary, cut any ties that secure the leads to the transport harness.

Table 8-3. BOT/EOT Sensor Assembly Connections

PIN SIGNAL LENGTH

J2-12 Source Bias 10-1/2"

J2-17 Sensor Bias 11-1/4"

J2-47 Source Drive 13-1/4"

J2-48 Sensor Output 12"

If the leads are not marked, they may be identified by lead length. See Table 8~3.

4. Remove the screw, spacer, washer, and nut that secures the BOT/EOT sensor assembly to the cassette holder.

INSTALLA TION

Use the following procedure for installing the BOT/EOT sensor assembly.

1. With the transport and BOT/EOT sensor assembly removed as outlined in paragraph 8.4.4 (Removal), install the new BOT/EOT sensor assembly by replacing the screw, spacer, washer, and nut previously removed.

NOTE: Do not tighten this screw.

2. Route the leads and reconnect as outlined in Table 8-3. Replace the ties, a s required.

3. Release the cassette holder and carefully slide the Cassette, Motor, and Sensor Adjustment Tool PiN 88016036 into place.

4. Latch the cassette holder back into place.

5. Connect the DMM plus lead to J1-17 and the ground lead to ground.

6. Connect the power cord to a 115Vac, 60Hz power source.

7. Set CB1 to ON.

CAUTION

Use care when probing power circuits.

An AC voltage level of 115Vac is present in the power supply section when the POWER pushbutton is depressed to OFF.

8. Depress the POWE R switch to ON.

9. Position the BOT/EOT sensor assembly back and forth until a minimum voltage indication is present, then tighten the screw.

8.4.5 Cassette In Place Switch and File Protect Switch Removal and Installation REMOVAL

Use the follOWing procedure for removing the cassette in place or file protect switches from the transport.

1. Remove the transport as outlined in paragraph 8.4 (Removal).

2. Unsolder and remove the leads on the respective switch. Label each lead as it is removed. Refer to Table 8-4.

Table 8-4. Cassette In Place Switch and File Protect Switch Connections CASSETTE IN PLACE SWITCH (S1) FILE PROTECT SWI'rCH (S2)

PIN CONNECTION PIN CONNECTION

J2-15 NO J2-31 NO

J2-49 NC J1-2 C

J1-2 C

3. Remove the two screws that secure the switches to the cassette holder.

NOTE:

INSTALLA TION

Retain the spacer, flat washers, and hex nuts.

Use the following procedure for installing the cassette in place or file protect switches into the transport.

1. With the transport and switches removed as outlined in paragraph 8.4.5 (Removal), install the new switch or switches. First replace the spacer, then the file protect switch (longest actuator), followed by the cassette in place switch, the two flat washers and two hex nuts.

2. Reconnect all wiring as outlined in step 2 of the removal procedure.

3. Release the cassette holder and carefully slide the Cassette, Motor, and Sensor Adjustment Tool PiN 88016036 into place.

4. Check to see that the file protect switch makes as the door is closed and breaks when the actuator enters the cutout in the tool.

5. Remove the Cassette, Motor, and Sensor Adjustment Tool and place a cassette into the cassette holder.

6. Check to see that the drive couplings engage the cassette driving lugs before the cassette in place switch makes. With the actuator resting on the edge of the cassette, check to see that a O. 002-to O. 007-inch gap exists between the arm of the acutator and the body of the switch. If not properly adjusted, loosen the two screws and reposition the switch.

9.1 GENERAL

ROM Address Register Return Address Register

Main and General Purpose Register Arithmetic Logic Unit

Buffer I/O (Read Only & Read/Write) Buffer Control (Read Only & Read/Write) Tape Control (Read/Write & Read Only) Read Decode (Read/Write & Read Only) Write Encode (Read/Write)

Motor Control PDA Switch and Indicator

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9.2 SYSTEM WIRE LIST

R.WlO2lA CONNECTOR PANEL WIRE lIST PAGE 1

08015311-1 REV A

SOURCE

POINT NET LINE NAME

AOlOI AOIOI-A0301=A0401-A0501 -IC -A0601-A0701=A0801-A0901

=A1401-A1601=A1101-~1801

=A2001-A2101IA2819

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=A0503-A0603=A0103-A0803

=AI003-AII03=AI403-AI603

=AI703-AIB03=A1903-A2003

=A2103-A2831

AOI04 AOI04-A03C4=A0404-A0504 +C8

=A0604-A0704=A0804-A0904

=AIOO4-A1404=A1604-A1130

=A1904-A2030(A2812

AOI05 AOI05-A0305=A0405-~0505 +CC

=A0605-A0705=A0805-A1405

=A1605-A1132=AIB05-A2032

=A2105-A 2811

AOl11 AOlll-A0211=A0311-Al111 -AAOBO

=A1211-A1311=A1511-A1111

=A1811-A1911=A2011-A21l1 (A2127

AOl1? AOI12-A0212=A0312-Al112 -AAOBI

=A1212-AI312=A1512-A1112

=AI812-AI912=A2012-A2112 CA2128

AOt13 AOlI3-A0213=A0313-Al113 -AA082

=AI213-AI313=AI513-A1113

=AI813-A1913=A2013-A2113 (A2729

A0114 A0114-A0214=A0314-Al114 -AAOB3

=A1214-AI314=A1514-A1114

=AI814-A1914=A2014-A2114 CA2130

A01l5 AOI15-A021S=A0315-A0415 -AAOB4

=AII15-A1215=A131S-AISlS

=A1115-A1815=A1915-A2015

=A211S-A2731

A0116 AOl16-A0216=A0316-All16 -AAOBS

=A1216-A1316=AI516-A1716

-A1816-A19l6~A2016-A2116

(A2132

A01l1 AOII1-A0217=A0317-All11 -AAOB6

=A1211-A1311=A1517-A11l1 -A18l1-A1911=A2017-A21l1 CA2134

R.WL021A CONNECTOR PANEL WIRE LIST PAGE 2

Im Dokument MAGNETIC TAPE WORD PROCESSOR UD002441-1 (Seite 101-129)