Service manual

Service Manual CNS-9701 4C.1

Section 4 Disassembly and Assembly

Before You Begin ................................................................................................................. 4.1

Warnings and Caution ................................................................................................4.1

Required Tools ...........................................................................................................4.1

Disassembling the Main Unit ............................................................................................... 4.2

Replacing the Motherboard ........................................................................................4.2

Replacing the Lithium Battery on the Motherboard ..................................................4.10

Replacing the CPU ..................................................................................................4.10

Replacing the Internal Memory ................................................................................ 4.10

Replacing the Hard Disk .......................................................................................... 4.11

Replacing the Graphic Board ................................................................................... 4.11

Replacing the Fans.................................................................................................. 4.11

Replacing the Floppy Disk Drive ............................................................................. 4.12

Replacing the Power Supply Unit ............................................................................ 4.12

Replacing the CD Drive ........................................................................................... 4.12

Disassembling the Optional VL-971R Display Unit ............................................................ 4.13

Replacing the LCD Assembly.................................................................................. 4.13

Removing the Display Unit Chassis ........................................................................ 4.15

Replacing the Touch Screen .................................................................................... 4.19

Disassembling the Optional WS-971R Recorder Unit ......................................................... 4.20

Removing the Recorder Sub Assy .......................................................................... 4.20

Removing the AC Inlet Socket ................................................................................ 4.21

Removing the RS232C Interface Board ................................................................... 4.22

Removing the Power Supply Unit ............................................................................ 4.22

Removing the Front Panel ....................................................................................... 4.22

Replacing the LED .................................................................................................. 4.23

Replacing the Platen Roller/Bushings/Gear ............................................................. 4.24

Cleaning the Thermal Array Head/Paper Sensor ...................................................... 4.25

Operation Check after Assembling the Recorder Unit ............................................. 4.25