CONTENTS
1.OUT LINE OF R4 MECHANISM..
……………………………………………………………………….….…
3
1-1.DIFFERENCE BETWEEN Z-MECHANISM AND R4-MECHANISM..
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3
1-2.THE TAPE TRANSPORT PATH...
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3
1-3.PARTS NAME OF R4 MECHANISM…
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4
1-4.NEW DD CYLINDER UNIT.
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6
1-5.PG SHIFTER AUTOMATIC ADJUSTMENT.
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7
2.REMOVAL OF CASSETTE TAPE
…………………………………………………………………..….……..
9
3.REMOVAL OF CASSETTE HOLDER UNIT & MECHANISM CHASSIS
………….………………….…
11
3-1.REMOVAL OF MECHANNISM CHASSIS UNIT…
………………………………………………….
11
3-2.REMOVAL OF CASSETTE HOLDER UNIT..
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11
4.DISASSEMBLY/ASSEMBLY METHOD FOR MECHANISM
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12
4-1.DISASSEMBLY OF MECHANISM…
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12
4-2.ASSEMBLY AND PHASE ADJUSTMENT OF MECHANISM..
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16
5.MECHANICAL ADJUSTMENT PROCEDURE
…………………………………………..……….…...…...
25
5-1.P2 AND P3 POST ADJUSTMENT (PREADJUSTMENT)
……..………………..……..……….….
25
5-2.TAPE INTERCHANGEABILITY ADJUSTMENT..
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25
Servicing Fixture and Tools
…………………………………….……………………………………..………
30
6.SERVICE INFORMATION DISPLAY
………………………………………..…………………………...…..
31
7.SELF – DIAGNOSIS INDICATION DISPLAY
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33
7-1. TABLE OF DETECTING CONDITION AND MOVEMENT OF
MECHANISM IN DETECTION OF THE SELF-DIAGNOSIS FUNCTION
…….…
35
7-2. MEMORY OF THE SELF-DIAGNOSIS HISTORY AND THE SUPPLEMENTARY DATA.
……..
39
7-3.CHANGE OF MEMORY TIMINGFOR ERROR NO. F03 AND F04..
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41
7-4.ANALIZING PROCEDURE FOR MECHANISM ERROR
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41
8.TEST MODE
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44
9.TIMING CHART OF MODE SW
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44
10.SYSTEM CONTROL CIRCUIT
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45
10-1. MODE TRANSITION..…………………………………………………………………………….….45
10-2. BASIC ACTION IN MECHANISM……….………………………………………………………..…46
10-3. SUPPLY AND TAKE-UP SENSORS……………………………………………………………..…47
10-4. SAFETY TAB SWITCH…………………………………………………………………………….…48
10-5. DEW SENSOR……………………………………………………………………………….………..48
10-6. SAFETY TIMER..…………………………………………………………………………….………..48
11.MOTOR DRIVE SECCTION
..
……………………………………………………………………….……….
51
11-1. CAPSTAN DRIVE CIRCUIT….………………………………………………………………….…...51
11-2. CYLINDER DRIVE AND LOADING MOTOR DRIVE CIRCUIT………………………………..…53
Summary of Contents for NV-HV61GN
Page 21: ...2 REMOVAL OF THE BACK PANEL Remove 2 Screws C Remove Screw D Unlock 4 Tabs E Fig D3 21 ...
Page 29: ...10 2 CASING PARTS SECTION 29 ...
Page 30: ...10 3 PACKING PARTS SECTION 30 ...
Page 31: ...11 REPLACEMENT PARTS LIST 31 ...
Page 41: ...C4537 ECJ2VC1H560G CHIP CAPACITOR 41 ...
Page 44: ...D2002 B0AAED000003 DIODE 44 ...
Page 47: ...Q1152 2SC3311ASA TRANSISTOR 47 ...
Page 49: ...R1502 ERJ3GEYJ273V CHIP RESISTOR 49 ...
Page 54: ...W519 ERJ3GEY0R00V CHIP JUMPER 54 ...
Page 109: ...4 1 3 PARTS NAME OF R4 MECHANISM Fig M2 ...
Page 139: ...34 ...