Table of Contents
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vi
Content.
• ........ ,. . . . . . . IC ......... '
FIgure
Title
,-'
6-11
6-11
6-12
6-13
6-14
6-15
6-16a
6-16b
6-17
6-18
6-19
6-20
6-21
. 6-22
6-23a
6-23b
6-23c
6-24
6-25
6-26
6-27
6-28a
6-28b
6-29a
6-29b
6-30a
6-30b
6-30c
6-31a
6-31b
6-32
6-33
6-34
6-35
6-36
6-37
6-38a
6-38b
6-39
6-40a
6-40b
6-41
6-42
6-43
6-44
6-45
8-1
8-2
8-3
8-4
8-5
8-6
Printer Switch Panel
Printer Mounting Screws ........................................... 6-11
Bail-Arm Adjustment-Right Side ................................... 6-12
Bail-Arm Adjustment-Left Side .................................... 6-13
Grit-Wheel Installation ............................................. 6-13
Pin-Wheel Replacement-Correct Alignment .......................... 6-14
Pin-Wheel Replacement-Incorrect Alignment .... '..................... 6-14
Pin Wheel Guide Replacement ...................................... 6-15
Carriage-Screw Removal ........................................... 6-16
Bail-Arm Removal-Spring in Outward Position ....................... 6-17
Bail-Arm and Spring Identification .................................. 6-17
Right Bail-Arm and Spring ......................................... 6-18
Home Switch and Out-Of-Paper Switch Locations ..................... 6-19
Disc-Drive Mounting Screws-Top ................................... 6-20
Disc-Drive Mounting Screw-Bottom ................................ 6-20
Bezel Mounting Screws' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6-21
Disconnecting the Disc-Drive Bezel .................................. 6-22
The Pivot Clamp and Dashpot Bracket ............................... 6-22
Display-Bezel Tabs and Panel Spring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6-23
Disengaging the Display-Bezel Tabs .................................. 6-23
Display-Assembly Details-Front .................................... 6-24
Display-Assembly Details-Back . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6-25
Grounding Nut ................................................... 6-26
Base Assembly Mounting Screws .................................... 6-27
Base Assembly Cover Screws and Nuts .............................. 6-27
Base Assembly With Cover Removed ................................ 6-28
Reinstalling the Base Assembly Cover ................................ 6-28
Power-Supply Assembly Showing AC Line Filter . . . . . . . . . . . . . . . . . . . . . .. 6-30
Power-Supply Assembly Showing Mounting Screws .................... 6-30
Power-Cable Harness .............................................. 6-31
Keyboard Connector Assembly ...................................... 6-32
Keyboard Bottom Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6-33
Keyboard Top Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6-33
Keyboard Assembly-Mounting Screws ............................... 6-34
Keyboard Assembly-Cable Connector and Ground Lug ................ 6-34
Installing a Keyboard Leg .......................................... 6-35
Keyboard
Leg
in Cosed Position .................................... 6-35
Unlocking the ROM Door .......................................... 6-36
Unlocking System III ROM Assembly ................................ 6-37
Removing System III ROM Assembly ................................ 6-37
Removing the System
V
ROM Assembly ............................. 6-38
Removing the ROM Assembly Cover ................................ 6-39
Separating the ROM PCAs ......................................... 6-39
Reinstalled peAs ................................................. 6-40
Aligrting the Pins ................................................. 6-41
Troubleshooting Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .... 8-7
Function Key Menu ............................................... 8-10
Second Function Key Menu ........................................ 8-10
Turn-On Analysis Flow Chart ....................................... 8-14
Power Supply Test Setup .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-17
Power Supply Repair Simplified Flow Chart .......................... 8-21
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