Nikon F3 - Repair Manual

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Details of FPC Modification2
Difference between the Old Shutter Release Switch and the New One3
Release Button Stroke4
Crossreference of Installing Combination of FPC and Shutter Assembly5
Specifications & Mechanism6
Figure of External7
Specification8
Outlines of Mechanism11
Film-Advance Mechanism11
Counter Switch Mechanism12
Closing Curtain Switch & Film-Advance Limit Mechanism13
Shutter-Releasing14
Completion of Release14
Troubleshooting14
Multi-Exposure Mechanism15
Multi-Exposure Setting15
Winding Operation15
Cancellation15
Shutter-Release Magnet & Shutter-Release Mechanism16
Shutter Cocking16
Mirror Mechanism17
Main Components17
Main Features17
Air Damper System17
Mirror-Cocking Mechanism18
Mirror-Releasing18
Shutter Switch & Mechanism19
Metering Mirror19
Outlines20
Mechanical Shutter Release by the Shutter-Release Knob26
Time Operation for Extra-Long Exposure27
Disassembling29
Chart of Disassembling Procedure31
Film-Advance Lever32
Rewind Crank33
Top Cover, Rewind Side34
Display Block35
Bottom Cover36
FPC (Unsoldering)37
Rewind Lever38
Spool38
Film-Advance Signal Unit/Multi-Exposure Axle39
Front Plate40
Front Plate Assembly41
Combination Magnet42
Shutter Switch42
Mechanical Release Lever42
Mirror Holder43
Mirror Box Unit, Rewind Side43
Take-Up Gear Unit44
FPC Holder44
Shutter Speed Selector45
Sprocket45
Incomplete Gear48
Connecting Shaft/Shutter Unit49
Unit, Film-Advance Completion Signal52
Connecting Shaft56
Switch, Film-Advance Completion Signal57
Take-Up Stopper Engagement & Contact58
Take-Up Gear & Incomplete Gear59
Lower Gear Connecting Shaft, Rewind Lever & Axle, Multi-Exposure60
Sprocket Gear, Lower Spool Shaft & Unit Base, Sprocket61
Unit, Take-Up Gear62
Sprocket Gear Engagement63
Plate, Sprocket Lower Gear Engagement63
Sprocket Teeth Positioning64
Film-Advance Mechanism Check and Adjustment66
Coupler, Multi-Exposure67
Mirror Cocking Lever68
Shutter-Release Button Stroke69
FPC Installation71
Precautions of FPC71
Installation72
Lead Wire Soldering73
Liquid Crystal Display Operation Checking73
Body Assembly & Front Plate Assembly74
Checking Procedures after Front Plate Assembly Installation75
Reflex-Mirror Operation75
Mirror-Rising Position75
Mirror Lock-Up Position75
Lead Wire Soldering from Front Plate Assembly76
Unit, Rewind Shaft77
Display Block, Exposure Information78
Electrical System Operation Check79
Power Switch79
Shutter-Release79
Self-Timer79
Counter Switch Adjustment Procedures81
Shutter & Meter Accuracy Adjustments82
Checking Sequence83
Location of Variable Resistor for Adjustment84
Battery Checker Voltage Adjustment84
Manual Shutter Speed of 1/2000 Sec. Check/Adjustment85
Delay-Time Adjustment86
Tolerance Limit of Manual Shutter Speed86
Automatic Shutter Speed Control Adjustment87
FRE Adjustment88
Automatic Shutter Speed Control Shift Adjustment89
LCD Auto Adjustment90
LCD Auto Level Adjustment91
LCD Manual Adjustment92
LCD Manual Shift Adjustment93
Speedlight Level Adjustment94
Ready Light Operation Check94
Top Cover, Wind Side96
Unit, Mirror-Box100
Mirror Holder and Unit, Mirror-Box Actuating101
Front Plate Unit103
Adjustments of Mirror 45 Angle, Infinity Focus and Parallax104
Infinity Focus104
Parallax Error104
Front Plate Unit Check/Adjustment105
Main Lever105
Contact Blades106
Height of Aperture Lever106
Shutter-Speed Selector109
Shutter-Speed Selector Circuit Check111
Gray Code Check111
Manual Setting and Auto-Manual Changeover111
Shutter Curtains Replacement112
Electric Circuit114
Precautions116
Checking Lands and External Figures of Main Parts117
Ceramic, Exposure Information120
Reistor Block132
Outlines of Shutter Control System135
Power Supply135
Power Circuit136
Timing Chart of Power Circuit136
Shutter Release137
Shutter Release Circuit138
Timing Chart of Shutter Release Circuit138
Auto Shutter Speed Control139
Auto Shutter Speed Control Circuit140
Exposure Timee on Auto140
Checking Lands in Auto Control Circuit142
Checking Lands in Manual Control Circiut142
Manual Shutter Speed Control143
Exposure Information Display on Manual145
Connection with Motor Drive147
Frame-Counter149
Speed-Light149
Viewfinder Illuminator149
Troubleshooting Chart151
Shutter Fails to be Released151
Shutter Provides Only the Time Operation153
Shutter Delivers Only the Speed of 1/2000 Sec.155
Shutter Speed Delivery Is Unstable on Auto157
Check Points after FRE Shift Adjustment Is Made158
Shutter Speed Delivery Is Unstable on Auto and Manual159
LCD will Not Change163
Troubles of LCD164
Troubles of Self-Timer166
Causes167
Inspection Standard for Repair178
Tool List188

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