IBM System/32 Introduction And Maintenance Manual page 8

viii
8.2.6.3
Undervoltage Fault 8-19 9.2.35 Print Head Forms Guide 9-40
8.2.6.4
Overcurrent Fault 8-19 9.2.35.1 Print Head Retract Ramp 9-40
8.2.7
Control Voltage Checkout. 8-19 9.2.36 Print Head Cable .
9-42
8.2.8
Manual Bring-Up Of The DC Power 9.2.37 Felt and Wick Service
9-44
Supply.
8-20
9.2.38
Print Head Ribbon Shield
9-44
8.2.9
Power Supply Voltages.
8-20
9.2.39 Print Head Ribbon Lifter
9-44
8.2.10
Power Sequence Card Pins And Test 9.2.40 Ribbon Drive
9-45
Points .
8-21
9.2.42 Ribbon Drive Clutches 9-45
8.2.11 Power Supply Plug And Pin 9.2.43 Ribbon Drive Shaft 9-46
Locations.
8-22
9.2.44 Ribbon Drive Lines 9-46
8.2.12 Terminal Board Locations And Pins
8-23
9.2.45
Ribbon Feed Rolls
9-47
9.2.46 Ribbon Box and Cover .
9-48
9.0.0 SERIAL PRINTER
9-1 9.2.47 Ribbon Changing.
9-48
9.1.0 THEORY
9-1 9.3.0 LOCATIONS.
9-49
9.1.1 Introduction
9-1 9.3.1 Front and Right Side Locations
9-49
9.1.2 Functional Components 9-2
9.3.2 Front and Left Side Locations
9-50
9.1.2.1 Stepper Motors 9-2
9.3.3 Bottom Locations
9-51
9.1.2.2
Print Head Carrier 9-3
9.3.4 Base Locations
9-52
9.1.2.3
Forms Feed 9-9
9.3.5
Power Supply Board Locations
9-53
9.1.2.4 Circuit and Power
9-12
9.4.0 PRINT QUALITY PROBLEMS
9-54
9.2.0 MAINTENANCE.
9-13
9.5.0 PR EVENTI VE MAl NTENANCE
9-55
9.2.1 Printer Cover
9-13
9.2.2 Separating The Printer From The
10.0.0 DATA COMMUNICATIONS.
10-1
Power Supply 9-14
10.1.0 INTRODUCTION
10-1
9.2.3
Platen and Paper Deflector 9-16
10.1.1 Data Communications Abbreviations
10-1
9.2.4 Platen Release Eccentrics 9-17
10.1.2 BSCA/SD LC Locations. 10-2
9.2.5 Platen Gears 9-17
10.2.0 BSCA/SDLC CARD STRAPPING
10-3
9.2.6 Platen Pressure Rolls 9-18
10.3.0
1200 BPS INTEGRATED MODEM.
10-4
9.2.7 Forms Tractor Unit . 9-19
10.3.1
Transmit Level Adjustment
10-4
9.2.8 Forms Tractor Unit Chain Cover 9-19
10.3.1.1 WT PSN Line Plate and Cable
9.2.9 Forms Tractor Unit Chain. 9-20
Connections .
10-6
9.2.10 Platen Gear Backlash 9-20
10.3.2 Board Strapping
10-7
9.2.11 Forms Feed Motor Gear Backlash
9-21
Leased Line Board
10-7
9.2.12 Forms Feed Motor/Emitter 9-21
Switched Network Board
10-7
9.2.13 Forms Feed Motor/Emitter 9-22
10.3.3
Card Strapping
10-8
9.2.14 Forms Feed Emitter Disk 9-23
Auto-Answer Basic Card (A 1 )
10-8
9.2.15 Forms Feed Motor/Emitter 9-24
Equalizer Card (A
1) . 10-8
9.2.16 A-Frame 9-25
Auto-Answer Interface Card (B2)
10-9
9.2.17.1 End-of-Forms Switch (Old Style) 9-26
Ring Integrity Card (E2)
10-9
9.2.17.2 End-of-Forms Switch (New Style) 9-27
10.4.0 2400 BPS INTEGRATED MODEM.
10-10
9.2.18
Print Emitter Pickup
9-29 10.4.1 Controls and Indicators
10-10
9.2.19 Print Emitter
9-30
Test/Operate Diagnostic
10-12
9.2.20 Print Emitter Hold Down Bracket 9-30
OPE RATE Switch
10-18
9.2.21 Left Margin 9-31
CADUCEE Feature . 10-18
9.2.24 Power Supply Board 9-32
Transmit Level Limiting and Signal
9.2.25 Capacitor C3 9-33
Meter Adjustment
10-18
9.2.26 Power Transformer 9-34
10.4.2 Dial Tone Detect.
10-19
9.2.27 Fan 9-34
10.4.3
Interface Signal Timings 10-20
9.2.28
Carrier Main and Support Shafts. 9-36
10.4.4
Card Population Check and Card Strapping
9.2.29 Carrier and Main Shaft 9-36
Procedure.
10-21
9.2.30 Carrier Support Shaft 9-37
10.4.5 Preamplifier Strapping . 10-23
9.2.31
Carrier Drive Belt
9-38
10.4.6 Transmitter Interface Strapping . 10-24
9.2.32 Print Stepper Motor. 9-39
10.4.7
Test/Operate, Timing Options Strapping 10-26
9.2.33 Carrier Leaf Spring and Bearing 9-39
10.4.8 SNBU Strapping .
10-29
9.2.34
Print Head .
9-40
10.4.9 Auto-Answer I nterface and Strapping .
10-30