Publication Number 53719. Issue 3, April 2012
SERVICE MANUAL FOR THE 13754 TGX150 INTERNAL RLAN TYPE A/B SC ETM
6.2.1
Changing The Paper Roll ............................................................................................................. 28
6.2.2
Removing a Paper Blockage ......................................................................................................... 29
6.3
SPECIAL
REPAIR
OPERATIONS ................................................................................................... 31
6.3.1
Connector Crimp Terminals ......................................................................................................... 31
7
REMOVAL AND REPLACEMENT OF PARTS .................................................................................. 33
7.1
INTRODUCTION ............................................................................................................................. 33
7.2
THE
TOP
COVER ............................................................................................................................. 34
7.2.1
Opening The Top Cover ................................................................................................................ 34
7.2.2
Removing The Top Cover Stay ...................................................................................................... 34
7.2.3
Removing The Top Cover ............................................................................................................. 35
7.2.4
Removing The Top Inner Cover .................................................................................................... 36
7.2.5
Removing The Internal RLAN PCB Mount Assembly ................................................................... 36
7.2.6
Removing The Contactless Reader Assembly ............................................................................... 39
7.3
KEYBOARD
AND
DISPLAY .......................................................................................................... 41
7.3.1
Removing The Keyboard and Display Assembly .......................................................................... 41
7.3.2
Keyboard and Display Sub-Assemblies ........................................................................................ 42
7.4
PRINTER
PLATE
ASSEMBLY ....................................................................................................... 45
7.4.1
Opening The Printer Plate Assembly ............................................................................................ 45
7.4.2
Removing The Printer Plate Assembly.......................................................................................... 45
7.4.3
Removing The Printer Mechanism ................................................................................................ 45
7.4.4
Removing The Printer Data Cable Assembly ............................................................................... 46
7.4.5
Removing The Top Cover Latching Hook ..................................................................................... 47
7.4.6
Removing The Sync Sensor and Bracket ....................................................................................... 47
7.4.7
Removing The Sync Wheel ............................................................................................................ 48
7.4.8
Removing The Paper Roll Spigot .................................................................................................. 48
7.4.9
Removing The Paper Roll Plinth .................................................................................................. 49
7.4.10
Dismantling The Printer Mechanism ....................................................................................... 49
7.5
THE
MODULE
HOUSING
ASSEMBLY ......................................................................................... 57
7.5.1
Removal of Module Housing......................................................................................................... 58
7.5.2
Module Housing Disassembly / Reassembly ................................................................................. 59
7.6
LOWER
COVER ............................................................................................................................... 61
7.6.1
Removing The Lower Cover.......................................................................................................... 61
7.6.2
Removing The Serial Number PCB ............................................................................................... 61
7.6.3
Removing The Type A/B-2 Coupler PCB ...................................................................................... 61
7.6.4
Removing The Memory Expansion & Internal Serial PCB ........................................................... 61
7.6.5
Removing The Control PCB ......................................................................................................... 61
8
FAULT FINDING AND TESTING ......................................................................................................... 63
8.1
GENERAL
INFORMATION ............................................................................................................ 63
8.2
TYPES
OF
FAULTS ......................................................................................................................... 66
8.2.1
Control Board Faults .................................................................................................................... 66
8.2.2
Machine Dead ............................................................................................................................... 66
8.2.3
No Tickets Printed ........................................................................................................................ 66
8.2.4
Ticket Printing Uneven ................................................................................................................. 67
8.2.5
Paper Out Not Indicated ............................................................................................................... 67
8.2.6
Paper Movement Faulty................................................................................................................ 68
8.2.7
Graphic Display Faulty ................................................................................................................ 68
8.2.8
Repeater Display Faulty ............................................................................................................... 69
8.2.9
Keys or Caption Strips Not Illuminated ........................................................................................ 70
8.2.10
Keys Inoperative ..................................................................................................................... 70
8.2.11
Memory Module Not Recognised ............................................................................................ 70
8.2.12
Difficulty in Inserting or Withdrawing a Module .................................................................... 71
8.2.13
ITSO Smart Card Not Accepted .............................................................................................. 71
8.2.14
No Radio LAN Comms ............................................................................................................ 71
8.3
TESTING
AND
REPAIRING
CABLES
ASSEMBLIES .................................................................. 72
8.3.1
Testing Cable Assemblies ............................................................................................................. 72
8.3.2
Repairing Cable Assemblies ......................................................................................................... 72
