Bell & Howell - Projector - Filmosound 641 - 642 ... - Cine Information

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<strong>Filmosound</strong> 16 mm <strong>Projector</strong>s DESIGNS 643 and 644 SERVICE INSTRUCTIONS SECTION 8 DISASSEMBLY PROCEDURE 55
GENERAL INSTRUCTIONS Carry out the procedures outlined in the manual and note the following variations which are related to the component parts concerned with magnetic operation, DISASSEMBLING FIGURE 37 PARTS To detach the complete sound head assembly from the main casting refer to the procedure set out in section 49 (page 36) but note that it will be necessary to disconnect the leads terminating the plug contact block from within the amplifier and one lead attached to the main casting which serves as a hum bucking coil. With design 644 also note the wafer switch secured by two screws to the bracket of the magnetic switch assembly* It is advisable to note the correct orientation of the wafer switch to ensure re-assembly in an identical manner. The contact block (58A) may be detached from the assembly after removal of the two screws (58B). It is important to note however, that the position of the contact block assembly (58) is extremely critical and removal of this item should, therefore, be avoided. DISASSEMBLY PROCEDURE 56 DISASSEMBLING FIGURE 35 PARTS Remove parts in their indexed order of disassembly. Before removing the amplifier (25) note that it is necessary to disconnect the following leads from tagboards located in the amplifier (see Figure40) a) Ten leads from tagboard P4 b) Seven leads from tagboard P2 c) Two leads from tagboard P5 Before removing leads from tagboards P2 and P5 it is advisable to note the correct sequence of connection before removal. With tagboard P4 it is only necessary to match the colours of the fixed and detachable leads when re-assembling the amplifier. In addition to the above the following leads must be disconnected. d) Exciter lamp leads e) Photo diode leads f) Speaker lead's 1 Ma in earth leads When all leads have been detached remove the record switch attached to a bracket on the underside of the base casting by a knurled plastic nut. The amplifier can then be withdrawn after removal of the four screws (23)
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Disclaimer The information containe
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Model 642 Filmosound Projector (iii
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Section 3 Reassembly Procedure Page
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GENERAL INTRODUCTION This manual ha
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THE 16 mm Filmosound Projector DESI
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FAULT FINDING GUIDE 3. MISCELLANEOU
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FAULT FINDING GUIDE (Cont'd) TROUBL
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FAULT FINDING GUIDE (Cont'd) TROUBL
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16. DISASSEMBLING SOUND HEAD 18. DI
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16 mm Filmosound Projector DESIGN 6
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the bearing (28) and trigger (29) t
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the loop restorer shaft and below t
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enough to hold. Insert the spring (
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Insert the alignment rod (SER-550-2
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When adjusting Design 642 projector
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48. REWIND CLUTCH ADJUSTMENTS (See
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50. TIMING BELT IDLER ADJUSTMENT Be
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THE 16mm Filmosound Projector DESIG
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disconnected when an external speak
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will show that full power output is
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THE 16mm Filmosound Projector DESIG
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Figure 2. Fllmosound Projector Main
Page 50 and 51: Figure 3. Filmosound Projector Main
Page 52 and 53: Figure 4. Filmosound Projector Main
Page 54 and 55: Figure 5. Front Heel Arm Assembly
Page 56 and 57: o' / Figure 7. Projection Lampholde
Page 58 and 59: Figure 9. Sound Head Assembly I I i
Page 60 and 61: Figure 10. Mechanism Assembly (Shee
Page 63 and 64: Figure il MECHANISM ASSEMBLY. COMPL
Page 65 and 66: Figure il MECHANISM ASSEMBLY. COMPL
Page 67 and 68: Figure il MECHANISM ASSEMBLY, COMPL
Page 69 and 70: Figurs 14 LENS CARRIER ASSEMBLY Key
Page 71 and 72: Figure il SPROCKET GUARD ASSEMBLY K
Page 73 and 74: Figure il BLOWER ASSEMBLY Part No.
Page 75 and 76: I LL 1 2 3 4 5 6 7 8 9 10 1 1 12 13
Page 77 and 78: lOKn 3-9KP. Figure 21. Design 641 A
Page 79 and 80: 2 J 4 12 13 I H IS U ]7 18 19 20 21
Page 81 and 82: -a L-J *—5—fi 9 8 13 12 15 16 1
Page 83 and 84: Circuit Ref. Description R1 Resisto
Page 85: | Function Switch Pos»Tiof« I (
Page 89 and 90: JL ITC Wiring Diagram
Page 91 and 92: I Figure 26. 641 Amplifier - Circui
Page 93 and 94: ]Q - RJ3 R 26 CED 4 H R27 L C cp )
Page 95 and 96: Model 644 Filmosound Projector 49
Page 97 and 98: Filmosound 16 mm Projectors DESIGNS
Page 99: MAGNETIC SOUND SYSTEM TROUBLES AND
Page 103 and 104: ADJUSTMENTS The following adjustmen
Page 105 and 106: 1 Hum bucking loop from head plug b
Page 107 and 108: Filmosound 16 mm Projectors DESIGNS
Page 109 and 110: The oscillator frequency is approx.
Page 111 and 112: Figure 32 PROJECTOR MAIN PLATE (1)
Page 115 and 116: Figure 33A PROJECTION LAMPHOLDER AS
Page 121 and 122: Figure 36 LENS CARRIER ASSEMBLY Key
Page 123 and 124: Key No. 1 3A 3B 4A 10 % 10A @ 10B @
Page 125 and 126: Figure 37 cont. 49 Switch, Magnetic
Page 127 and 128: WAF^H tWirCH CONNECTION)! DESIGN 64
Page 129 and 130: DESIGN 652 Filmosound 16 mm Project
Page 131 and 132: Filmosound 16 mm Projector DESIGN 6
Page 135 and 136: Figure K. Autoload System Adjustmen
Page 137 and 138: Fig. L TIMING THE SPROCKETS
Page 139 and 140: Fig.M. POSITIONING THE SOUND HEAD
Page 143 and 144: AMPLIFIER PART NO.027097 Four fuses
Page 145 and 146: Design 652 Figure 42 PROJECTOR MAIN
Page 147 and 148: Design 652 Figure 43 SOUND HEAD ASS
Page 149 and 150: Figure 44 652 MECHANISM ASSEMBLY CO
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Figure 45 652 MECHANISM ASSEMBLY CO
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652 MECHANISM ASSEMBLY COMPLETE con
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Figure 46 Mechanism Assembly (3)
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Figure 47. Aperture Plate Assembly
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Figure 48, Lens Carrier Assembly
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Figure 49 Sprocket Guard Assembly (
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SYM: VALUE PACT MO 21 33o
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Bell & Howell - Projector - Filmosound 641 - 642 ... - Cine Information

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