Toshiba 4550 User manual

Toshiba 4550
Service Manual
Service Handbook
www.electronicsrepair.net

[4550 SERVICE MANUAL] 2510001 1
GENERAL PRECAUTIONS REGARDING THE INSTALLATION AND 2510001 1
THE SERVICE OF THE COPIERS..................................................0-1 2510001 1
1. SPECIFICATIONS, ACCESSORIES, OPTIONS....................................1-1 4550101 2
1.1 Specifications........................................................1-1 4550101 0
1.2 Accessories...........................................................1-4 4550104 0
1.3 Options...............................................................1-4 4550104 0
1.4 System List...........................................................1-5 4550105 0
2. GENERAL DESCRIPTION OF THE 4550.........................................2-1 4550201 2
2.1 Functions of the 4550.................................................2-1 4550201 0
2.2 Front/Rear View.......................................................2-3 4550203 0
2.2.1 Front Section View.................................................2-3 4550203 0
2.2.2 Rear Side View.....................................................2-4 4550204 0
2.2.3 ADF Front Section View.............................................2-5 4550205 0
2.3 Electrical Parts Layout...............................................2-6 4550206 0
2.3.1 Copier's DC Electrical Parts.......................................2-6 4550206 0
2.3.1.1 DC Electrical Parts Except Motors...............................2-6 4550206 0
2.3.1.2 Motors..........................................................2-7 2510206 0
2.3.2 AC Electrical Parts................................................2-8 4550207 0
2.3.3 ADF Electrical Parts...............................................2-9 4550209 0
2.4 Symbols and Functions of Electrical Parts............................2-10 4550210 0
2.5 Wire-Harness Location Diagram........................................2-16 4550216 0
2.5.1 Location Diagram for Upper Unit...................................2-16 4550216 0
2.5.2 Location Diagram for Lower Unit...................................2-17 4550217 0
2.6 Removal of Covers and PC Boards......................................2-18 5010217 0
2.6.1 Removal for Covers................................................2-18 5010217 0
2.6.2 Removal of Main PC Boards.........................................2-22 4550222 0
3. COPYING PROCESS.........................................................3-1 2510301 2
3.1 Copying Process.......................................................3-1 2510301 0
3.2 Detailed Description of Copying Process...............................3-2 2510302 0
3.3 Comparison with the 4010 of Copying Process Conditions...............3-10 4550310 0
4. GENERAL COPIER OPERATION................................................4-1 4010401 2
4.1 Operation Outline.....................................................4-1 4010401 0
4.2 Descriptions of Operation.............................................4-1 4010401 0
4.2.1 Operation up to Standby State after Power On.......................4-1 4010401 0
4.2.2 Standby (Ready)....................................................4-1 4010401 0
4.2.3 Automatic Feed Copying Using the PRINT Key.........................4-2 4010402 0
4.2.4 Bypass-Feed Copying................................................4-5 2510405 0
4.2.5 Interrupt Copying..................................................4-5 2510405 0
4.3 Fault Detection.......................................................4-6 2510406 0
4.4 Flow Charts..........................................................4-13 2510413 0
4.4.1 Power On to Ready.................................................4-13 2510413 0
4.4.2 Automatic Cassette Feed Copying...................................4-15 4010415 0
5. DISPLAY UNIT............................................................5-1 4550501 2
5.1 Detailed Drawing of the Control Panel and the Display Panel...........5-1 4550501 0
5.2 Items Shown on the Display Panel......................................5-2 4550502 0
5.2.1 Display during Normal Copying......................................5-2 4550502 0
5.2.2 Displays in the Event of Faulty Conditions.........................5-3 4550503 0
5.3 Relation between Copier Conditions and Operator's Actions.............5-6 4550506 0
5.4 Description of Operation..............................................5-7 4550507 0
5.4.1 Dot Matrix LCD Display Circuit.....................................5-7 4550507 0
5.4.2 LED Display Circuit................................................5-8 4550508 0
5.5 Disassembly and Replacement..........................................5-12 5010513 0
6. DRIVE SYSTEM............................................................6-1 4550601 2
6.1 Construction of Drive System..........................................6-1 4550601 0
6.2 Description of Operations.............................................6-1 4550601 0
6.3 Main Motor (IC Motor) Drive...........................................6-2 2510602 0
6.3.1 Structure of IC Motor..............................................6-2 2510602 0
6.3.2 IC Motor Rotation System...........................................6-2 2510602 0
6.3.3 Position-Detection of Rotor........................................6-3 2510603 0
6.3.4 Main Motor Drive...................................................6-4 2510604 0

6.3.5 Control Signals....................................................6-5 2510605 0
6.4 Disassembly and Replacement...........................................6-8 2510608 0
6.5 Adjustment...........................................................6-10 2510610 0
6.5.1 Drum and Heat Roller Speed Adjustment.............................6-10 2510610 0
7. OPTICAL SYSTEM..........................................................7-1 2510701 2
7.1 Functions.............................................................7-1 2510701 0
7.2 Construction..........................................................7-1 2510701 0
7.3 Description of Operation..............................................7-6 2510706 0
7.3.1 Scanning Motor (M2)................................................7-6 2510706 0
7.3.2 Mirror Motor (M4)/Lens Motor (M3)..................................7-6 2510706 0
7.3.3 Document Motor (M16)...............................................7-7 2510707 0
7.3.4 Optical Fan Motor (M11)............................................7-7 2510707 0
7.4 Pulse Motor Drive.....................................................7-8 2510708 0
7.4.1 Features...........................................................7-8 2510708 0
7.4.2 Principle of the Pulse Motor.......................................7-8 2510708 0
7.4.3 Pulse Motor Drive Circuit (Constant Current Type).................7-11 4550711 0
7.4.4 Pulse Motor Drive Circuit (Constant Voltage Type).................7-14 4550714 0
7.5 Exposure Control Circuit.............................................7-15 2510715 0
7.5.1 Brief Description.................................................7-15 2510715 0
7.5.2 Operation of Lamp Regulator.......................................7-16 2510716 0
7.5.3 Automatic Exposure Sensor Circuit.................................7-16 2510716 0
7.5.4 Arithmetic and Control Unit.......................................7-17 2510717 0
7.5.5 Lamp Regulator Circuit............................................7-19 2510719 0
7.6 Automatic Original-Size Detection Circuit............................7-20 2510720 0
7.6.1 Principle of Original-Size Detection..............................7-20 2510720 0
7.6.2 Original Size Detection...........................................7-20 2510720 0
7.7 Disassembly and Replacement..........................................7-23 2510723 0
7.8 Adjustment...........................................................7-36 4550736 0
7.8.1 Uneven Light Distribution.........................................7-36 4550736 0
7.8.2 Exposure Adjustment...............................................7-37 4010737 0
7.8.3 Adjustment of Carriage Drive Belt.................................7-43 2510747 0
7.8.4 Adjustment of Carriages 1 and 2...................................7-43 2510747 0
7.8.5 Adjustment of Mirrors and Lens....................................7-44 4550744 0
7.8.5.1 Adjustment of Focus and Horizontal Reproduction Ratio..........7-44 4550744 0
7.8.5.2 Optical Axis Adjustment........................................7-46 4550746 0
7.8.5.3 Image Distortion...............................................7-48 4550748 0
7.8.5.4 Image Inclination..............................................7-49 4550749 0
7.8.5.5 Side Deviation of Lens Unit....................................7-50 4550750 0
7.8.6 Installation of Red Filter........................................7-51 2510754 0
8. PAPER FEEDING SECTION...................................................8-1 2510801 2
8.1 Functions.............................................................8-1 2510801 0
8.2 Description of Operation..............................................8-3 2510803 0
8.2.1 Up-and-Down Movement of Manual Feed Roller.........................8-3 2510803 0
8.2.2 Up-and-Down Movement of Pick-Up Roller.............................8-4 2510804 0
8.2.3 LCC Pick-Up Roller.................................................8-4 2510804 0
8.2.4 Paper Feeding Operation............................................8-5 2510805 0
8.2.5 Paper Separation Function..........................................8-7 2510807 0
8.3 Motor Drive Circuit...................................................8-8 2510808 0
8.3.1 Brush Motor Drive Circuit..........................................8-8 2510808 0
8.3.2 Pulse Motor Drive Circuit (Constant Current Type)..................8-9 4550809 0
8.4 Disassembly and Replacement..........................................8-12 4550812 0
8.5 Adjustment...........................................................8-21 5010819 0
8.5.1 Positions for Paper-Size Switch Tabs..............................8-21 5010819 0
8.5.2 Height Adjustment of Pick-Up Roller and Manual Feed Roller........8-22 2510821 0
8.5.2.1 Height Adjustment of Pick-Up Roller............................8-22 2510821 0
8.5.2.2 Height Adjustment of Manual Feed Roller........................8-22 2510821 0
8.5.3 Adjustment of Drum/Heat Roller/Aligning Roller Speed, 4550823 0
Aligning Value, Registration, Leading Edge in Image Shift, 4550823 0
Leading Edge in Edge Erasing, Trailing Edge in Edge Erasing, 4550823 0
Editing Position, Leading-Edge Void and Trailing-Edge Void.......8-23 4550823 0
8.5.3.1 Operational Procedure..........................................8-24 4550824 0

8.5.3.2 Aligning Motor Speed Adjustment................................8-25 4550825 0
8.5.3.3 Aligning Value Adjustment......................................8-26 2510825 0
8.5.3.4 Registration Adjustment........................................8-27 2510826 0
8.5.3.5 Adjustment of Leading Edge in Image Shift......................8-28 4550828 0
8.5.3.6 Adjustment of Leading Edge and Trailing Edge in Edge Erasing...8-29 4550829 0
8.5.3.7 Adjustment of Leading-Edge Void and Trailing-Edge Void.........8-31 4550831 0
8.5.4 Side Deviation Adjustment.........................................8-32 2510827 0
8.5.4.1 Side Deviation in Manual Feeding...............................8-32 2510827 0
8.5.4.2 Side Deviation in Cassette Feeding.............................8-33 2510828 0
8.5.4.3 Side Deviation in LCC Feeding..................................8-34 2510829 0
8.5.4.4 Side Deviation in Pedestal Casette Feeding.....................8-35 2510830 0
8.5.5 Adjustment of LCC Separation Force................................8-36 2510831 0
8.5.5.1 Check of Separation Performance................................8-36 2510831 0
8.5.5.2 Adjustment of Separation Force.................................8-36 2510831 0
9. DRUM-RELATED SECTION....................................................9-1 2510901 2
9.1 Construction..........................................................9-1 2510901 0
9.2 Description of Functions..............................................9-2 2510902 0
9.3 Transfer, Separation Current Control Circuit..........................9-4 2510904 0
9.3.1 Outline............................................................9-4 2510904 0
9.3.2 Operation Explanation..............................................9-4 2510904 0
9.4 LED Eraser Array......................................................9-5 2510905 0
9.4.1 Outline............................................................9-5 2510905 0
9.4.2 Operation Description..............................................9-6 2510906 0
9.5 Control Circuit of Transfer/Separation Charger Wire Cleaning..........9-7 4550907 0
9.5.1 Description of Operation...........................................9-7 4550907 0
9.5.2 Motor Drive Circuit................................................9-8 4550908 0
9.6 Drum Temperature Detection Circuit....................................9-9 4550909 0
9.6.1 General Description................................................9-9 4550909 0
9.6.2 Circuit Description................................................9-9 4550909 0
9.7 Disassembly and Replacement..........................................9-11 4550911 0
9.8 Adjustment...........................................................9-20 4550920 0
9.8.1 Adjustment and Detection of Main Charger Output of High-Voltage 4550920 0
Transformer......................................................9-20 4550920 0
9.8.2 Adjustment and Detection of Transfer Output of High-Voltage 2510915 0
Transformer......................................................9-22 2510915 0
9.8.3 Adjustment and Detection of Separation Output of High-Voltage 2510916 0
Transformer......................................................9-23 2510916 0
9.8.3.1 Items to Check Before Adjustment...............................9-23 2510916 0
9.8.3.2 Output Adjustment Procedure....................................9-23 2510916 0
9.8.3.3 Output Detection Method........................................9-23 2510916 0
9.8.4 Adjustment and Detection of Developer Bias of High-Voltage 2510918 0
Transformer......................................................9-25 2510918 0
9.8.4.1 Output Adjustment Procedure....................................9-25 2510918 0
9.8.4.2 Output Detection Method........................................9-25 2510918 0
9.8.5 Editing Position Adjustment (Adjustment for Trimming and 2510920 0
Masking Copying).................................................9-27 2510920 0
10. DEVELOPER UNIT........................................................10-1 2511001 2
10.1 General Description.................................................10-1 2511001 0
10.2 Construction........................................................10-2 2511002 0
10.3 Developer Unit Drive................................................10-3 4551003 0
10.4 Brush Motor (Toner Motor (M15)) Drive Circuit.......................10-4 4551004 0
10.5 Auto-Toner Sensor Circuit...........................................10-5 2511005 0
10.5.1 Brief Description................................................10-5 2511005 0
10.5.2 Operation of Auto-Toner Sensor...................................10-6 2511006 0
10.6 Disassembly and Replacement.........................................10-8 4551008 0
10.7 Adjustment.........................................................10-15 2511015 0
10.7.1 Adjustment of Magnetic Brush (Leveler)..........................10-15 2511015 0
10.7.2 Adjustment of Developer-Pole Position...........................10-16 2511016 0
10.7.3 Auto-Toner Sensor Adjustment....................................10-17 2511017 0
11. CLEANER UNIT..........................................................11-1 2511101 2
11.1 Construction........................................................11-1 2511101 0

11.2 Description of Functions............................................11-3 2511103 0
11.3 Disassembly and Replacement.........................................11-4 2511104 0
12. FUSER UNIT/PAPER-EXIT UNIT............................................12-1 4551201 2
12.1 General Description.................................................12-1 4551201 0
12.2 Description of Operations...........................................12-2 2511202 0
12.3 Functions of Each Part..............................................12-2 2511202 0
12.4 Heater Control Circuit..............................................12-4 4011204 0
12.4.1 Temperature Detection Unit.......................................12-4 4011204 0
12.4.2 Detection of Thermistor Burnout..................................12-6 4551206 0
12.5 Disassembly and Replacement.........................................12-7 4551207 0
12.6 Adjustment.........................................................12-16 4551216 0
12.6.1 Heat Roller Pressure Adjustment.................................12-16 4551216 0
13. AUTOMATIC DUPLEXING DEVICE (ADD)......................................13-1 4551301 2
13.1 Introduction........................................................13-1 4551301 0
13.2 Construction........................................................13-2 4551302 0
13.2.1 Drive System.....................................................13-2 4551302 0
13.2.2 Driving of Exit/ADD Selection Gate...............................13-2 4551302 0
13.2.3 Driving of Stack Guides..........................................13-3 2511302 0
13.2.4 Driving of ADD Pick-Up Roller, ADD Feed Roller and 4551304 0
ADD Separation Roller...........................................13-4 4551304 0
13.2.5 Driving of ADD Aligning Roller...................................13-4 4551304 0
13.2.6 Driving of Transport Roller......................................13-4 4551304 0
13.3 Description of Operation............................................13-5 2511304 0
13.3.1 Paper Stacking Operation.........................................13-5 2511304 0
13.3.2 Duplexing (Re-Feeding) Operation.................................13-6 2511305 0
13.4 Motor Drive Circuit.................................................13-7 2511306 0
13.4.1 Brush Motor Drive Circuit........................................13-7 2511306 0
13.4.2 Pulse Motor Drive Circuit (Constant Current Type)................13-7 2511306 0
13.5 Disassembly and Replacement.........................................13-8 2511307 0
13.5.1 Stack Guide Unit.................................................13-8 2511307 0
13.5.2 Transport System................................................13-11 2511310 0
13.5.3 Drive System....................................................13-17 4551317 0
13.5.4 Switches........................................................13-21 4011320 0
13.6 Adjustment.........................................................13-24 2511322 0
13.6.1 Adjustment of Stack Guides......................................13-24 2511322 0
13.6.1.1 Installing the Stack Guide Unit..............................13-24 2511322 0
13.6.1.2 Adjusting the Stack Guide Unit in Position...................13-24 2511322 0
13.6.1.3 Adjusting ADD Side Deviation.................................13-25 2511323 0
13.6.2 Adjustment of ADD Pick-Up Roller Position.......................13-26 4551326 0
14. LARGE CAPACITY CASSETTE (LCC).........................................14-1 4551401 2
14.1 Introduction........................................................14-1 4551401 0
14.2 Construction and Drive Mechanism....................................14-2 4551402 0
14.3 Description of Operation............................................14-2 4551402 0
14.3.1 Paper-Empty Detection............................................14-2 4551402 0
14.3.2 Operation of Paper Feeding.......................................14-2 4551402 0
14.3.3 Operation of Elevator Tray.......................................14-2 4551402 0
14.4 Disassembly and Replacement.........................................14-4 2511403 0
14.5 Adjustment.........................................................14-10 4551410 0
14.5.1 Changing of Paper Size..........................................14-10 4551410 0
14.5.2 Fine Adjustment of Paper Guides.................................14-11 4551411 0
15. AUTOMATIC DOCUMENT FEEDER (ADF).......................................15-1 4551501 2
15.1 Introduction........................................................15-1 4551501 0
15.2 Construction........................................................15-2 4551502 0
15.3 Drive System Diagram (Rear View)....................................15-3 4551503 0
15.4 Explanation of Operation Sequence...................................15-4 4551504 0
15.4.1 Driving Directions of Rollers and Transport Belt.................15-4 4551504 0
15.4.2 Feeding/Exiting/Reversing of Originals...........................15-7 4551507 0
15.4.3 Description of Reversing Automatic Document Feeder (RADF) 4551511 0
Operation......................................................15-11 4551511 0
15.5 Block Diagram for Electrical Signals...............................15-13 4551513 0
15.6 Description of Interface Signals...................................15-14 4551514 0

15.6.1 Outline.........................................................15-14 4551514 0
15.6.2 Signals from the Copier to the ADF..............................15-14 4551514 0
15.6.3 Signals from the ADF to the Copier..............................15-15 4551515 0
15.7 Contents of Original Jams and ADF Errors...........................15-18 4551518 0
15.8 Detection of Original Sizes........................................15-20 4551520 0
15.9 Flow Charts........................................................15-22 4551522 0
15.9.1 Power ON up to Ready............................................15-22 4551522 0
15.9.2 Feeding Operation...............................................15-23 4551523 0
15.9.3 Pre-Feeding Operation...........................................15-27 4551527 0
15.9.4 Reverse Feeding.................................................15-28 4551528 0
15.9.5 Original Exiting................................................15-30 4551530 0
15.9.6 Original Jamming................................................15-31 4551531 0
15.10 Timing Charts.....................................................15-32 4551532 0
15.10.1 Single-Side Feed Mode (1 sheet, A4 size).......................15-32 4551532 0
15.10.2 Single-Side Feed Mode (3 sheets, A4 size)......................15-32 4551532 0
15.10.3 Single-Side Feed Mode (1 sheet, A3 size).......................15-33 4551533 0
15.10.4 Duplex Feed Mode (1 sheet, A3 size)............................15-33 4551533 0
15.10.5 Duplex Feed Mode (1 sheet, A4 size)............................15-34 4551534 0
15.11 Explanation of Circuit Operation..................................15-35 4551535 0
15.11.1 Power Circuit..................................................15-35 4551535 0
15.11.2 DC Motor Drive Circuit.........................................15-37 4551537 0
15.11.3 Shutter Solenoid Drive Circuit.................................15-39 4551539 0
15.12 Explanation of Input/Output Signals...............................15-41 4551541 0
15.12.1 DREQ Signal and DF-TXD Signal..................................15-41 4551541 0
15.12.2 DACK Signal and DF-RXD Signal..................................15-41 4551541 0
15.12.3 DCNT Signal....................................................15-41 4551541 0
15.12.4 Various Sensor Input Circuits..................................15-42 4551542 0
15.12.5 ADF Transport Motor Output Circuit.............................15-43 4551543 0
15.12.6 ADF Feed Motor Output Circuit..................................15-44 4551544 0
15.12.7 Clutch/Solenoid Output Circuit.................................15-45 4551545 0
15.12.8 ADF Cover Switch/ADF Set Switch................................15-45 4551545 0
15.13 Adjustment........................................................15-46 4551546 0
15.13.1 Independent Operation Mode (Test Mode).........................15-46 4551546 0
15.13.1.1 How to Use the Test Mode....................................15-46 4551546 0
15.13.2 Height Adjustment of Magnets...................................15-49 4551549 0
15.13.3 Adjustment of Separation Section...............................15-50 4551550 0
15.13.4 Adjustment of Flapper Solenoid.................................15-51 4551551 0
15.13.5 Adjustment of Original Skew....................................15-52 4551552 0
15.13.6 Registration Adjustment........................................15-53 4551553 0
15.14 Disassembly and Replacement.......................................15-54 4551554 0
15.14.1 Original Feed Tray.............................................15-54 4551554 0
15.14.2 Jam Access Cover...............................................15-54 4551554 0
15.14.3 ADF Cover......................................................15-54 4551554 0
15.14.4 ADF Maintenance Cover..........................................15-55 4551555 0
15.14.5 Configuration of the Original Feeding Drive (Reference)........15-55 4551555 0
15.14.6 ADF Feed Motor.................................................15-56 4551556 0
15.14.7 Weight Solenoid................................................15-57 4551557 0
15.14.8 Shutter Solenoid...............................................15-58 4551558 0
15.14.9 Separation Unit................................................15-59 4551559 0
15.14.10 ADF Pick-Up Roller/ADF Feed Roller............................15-60 4551560 0
15.14.11 ADF Clutch/ADF Aligning Roller................................15-62 4551562 0
15.14.12 ADF PC Board..................................................15-63 4551563 0
15.14.13 ADF Transport Motor...........................................15-63 4551563 0
15.14.14 ADF Exit Roller/Reversing Flapper.............................15-64 4551564 0
15.14.15 ADF Reversing Roller..........................................15-65 4551565 0
15.14.16 Transport Belt................................................15-66 4551566 0
15.14.17 ADF Unit......................................................15-68 4551568 0
15.15 Harness Location Diagram..........................................15-69 4551569 0
15.15.1 Harness Location Diagram (Feeding Section).....................15-69 4551569 0
15.15.2 Harness Location Diagram (Transport Motor Section).............15-70 4551570 0
15.15.3 Harness Location Diagram (Around PC Boards)....................15-71 4551571 0

16. POWER-STABILIZING CIRCUIT.............................................16-1 2511501 2
16.1 General Description.................................................16-1 2511501 0
16.2 Description of Operation............................................16-1 2511501 0
16.3 AC Wire-Harness Connection..........................................16-4 4011504 0
16.3.1 AC Wire-Harness Connection (110/115V)............................16-4 4011504 0
16.3.2 AC Wire-Harness Connection (200/220/240V)........................16-5 4011505 0
16.4 Transformer Circuit Diagram.........................................16-6 4011506 0
16.4.1 Power Transformer (110/115V).....................................16-6 4011506 0
16.4.2 Power Transformer (200/220/240V).................................16-7 4011507 0
16.4.3 High-Voltage Transformer for Main Charger (HVT-M)................16-8 2511508 0
16.4.4 High-Voltage Transformer for Transfer (HVT-T)....................16-9 4551609 0
16.4.5 Transfer Bias Transformer (PRE-TR)..............................16-10 2511510 0
16.4.6 ADF Power Transformer (ADF-TR)..................................16-11 2511511 0
16.5 Disassembly and Replacement........................................16-12 2511512 0
16.6 Adjustment.........................................................16-16 2511516 0
16.6.1 Adjustment of 24V DC Power Supply...............................16-16 2511516 0
19. JIGS AND SUPPLIES.....................................................19-1 4011801 2
19.1 List of Adjustment Jigs Used........................................19-1 4011801 0
19.2 TOSHIBA Supplies List...............................................19-2 2511802 0
19.3 Grease/Oil/Powder List..............................................19-4 2511804 0
19.4 Precautions for Storing and Handling Supplies.......................19-6 2511806 0
19.4.1 Precautions for Storing TOSHIBA Supplies.........................19-6 2511806 0
19.4.2 Inspecting and Cleaning OPC Drum.................................19-6 2511806 0
19.4.3 Checking Drum Cleaning Blade.....................................19-7 4011807 0
19.4.4 Checking and Replacing Cleaning Felt Roller......................19-8 4011808 0
19.4.5 Checking and Cleaning Upper and Lower Heat Rollers...............19-8 4011808 0
19.4.6 Checking and Cleaning Heat Roller Cleaning Blade.................19-8 4011808 0
20. ELECTRICAL CIRCUIT DIAGRAMS...........................................20-1 4552001 2
20.1 Control Block Diagram...............................................20-1 4552001 0
20.2 DC Wire-Harness Connection..........................................20-2 4552002 0
20.2.1 Copier DC Wire-Harness Connection................................20-2 4552002 0
20.2.2 ADF DC Wire-Harness Connection...................................20-3 4552003 0
20.3 Circuit Diagram.....................................................20-4 4552004 0