Table Of Contents - Epson QX-10 Technical Manual

CHAPTER 2
DISASSEMBLY ANDREASSEMBL Y
CONTENTS
2.1 Precautions for disassembly and reassembly ............................................ 2-1
2.2 Disassembly and reassembly of the main unit ........................................... 2-2
2.2.1 Optional cover and upper case ......................................................... 2-2
2.2.2 Q1 OGMS board .................................................................................. 2-4
2.2.3 Q10SYM board ................................................................................. 2-5
2.2.4 Q1 OPS board (Power supply unit) ...................................................... 2-6
2.2.5 FDO (SO-321 ) unit ............................ ,.......................................... ..... 2-7
2.2.6 Power lamp ............................... .................................... ......... ...... ..... 2-8
2.3 Disassembly and reassembly of CRT (green
monitor unit} .................................................................................................. ~. 2-9
2.3.1 Cover ................................................................................................. 2-9
2.3.2 CRT .................................................................................................. 2-10
2.3.3 Board (CRT drive unit) ..................................................................... 2-11
2·.4 Disassembly and reassembly of the
keyboard unit ................................................................................................ 2-1 2
2.4.1 Cover ................................................................................................ 2-1 2
2.4.2 Replacement of key switches and
LED lamps ....................................................................................... 2-1 3
2.5 SO-321 mechanism ..................................................................................... 2-14
2.5.1 Main board set .......................................................
00 . . . . . . . . . . . . . . . . . . . . . . .
2-14
2.5.2 Voice coil motor unit (VCM unit) .................................................... 2-16
2.5.3 Sub-frame, collet set, collet lever
and pad arm .......................................................................... : ......... 2-18
2.5.4 Front panel ...................................................................................... 2-20
2.5.5 Disk guide (L) unit, write protector set
and eject transmission level ........................................................... 2-21
2.5.6 Disk drive motor and endless belt .................................................. 2-24
2.5.7 Disk guide (R), idler set and disk drive
pulley set ......................................................................................... 2-26
2.5.8 Index detector A set ........................................................................ 2-28
2.5.9 Index detector B set ........................................................................ 2-30
2.5.10 Eject lock lever set .......................................................................... 2-32