
Table of contents
7.3.3 Installing the X-fan supply . ...................................................................................................56
7.4 Lamp info receiver................................................................................................................... 57
7.5 Lamp power supply (LPS) . ..........................................................................................................60
7.5.1 Description of the LPS........................................................................................................60
7.5.2 Removing the LPS............................................................................................................61
7.5.3 Installing the LPS .............................................................................................................62
7.5.4 Replacing the Light feedback board. . ........................................................................................62
7.6 Start pulse generator (SPG) ........................................................................................................65
7.6.1 Description of the SPG .......................................................................................................65
7.6.2 Diagnostics of the SPG .......................................................................................................66
7.6.3 Removing the SPG ........................................................................................................... 66
7.6.4 Installing the SPG .............................................................................................................67
7.7 Input module .........................................................................................................................69
7.7.1 Description of the input module .............................................................................................. 69
7.7.2 Removing the input module ..................................................................................................70
7.7.3 Installing the input module . . .................................................................................................. 71
7.7.4 Construction of the input module . . . . . ........................................................................................73
7.7.4.1 Analog input layer ......................................................................................................73
7.7.4.1.1 Description of the analog input layer . ...........................................................................73
7.7.4.1.2 Removing the analog input layer ................................................................................ 73
7.7.4.1.3 Installing the analog input layer..................................................................................74
7.7.4.2 DVI / D15 input layer . ..................................................................................................75
7.7.4.2.1 Description of the DVI / D15 input layer .........................................................................76
7.7.4.2.2 Removing the DVI / D15 input layer .. ...........................................................................76
7.7.4.2.3 Installing the DVI / D15 input layer .. . ...........................................................................77
7.7.4.3 Output and communication layer ......................................................................................78
7.7.4.3.1 Description of the output and communication layer.............................................................78
7.7.4.3.2 Removing the output and communication layer................................................................. 79
7.7.4.3.3 Installing the output and communication layer ..................................................................80
7.7.4.4 Stereo input/output layer...............................................................................................81
7.7.4.4.1 Description of the stereo input/output layer . .................................................................... 81
7.7.4.4.2 Removing the stereo input/output layer .........................................................................82
7.7.4.4.3 Installing the stereo input/output layer...........................................................................83
7.7.4.5 Optional input layer. . . .................................................................................................. 84
7.7.4.5.1 Optional input layer ..............................................................................................85
7.7.4.5.2 Removing the optional input layer ............................................................................... 85
7.7.4.5.3 Installing the optional input layer ................................................................................ 85
7.8 Desktop input board .................................................................................................................86
7.8.1 Description of the desktop input board .......................................................................................86
7.8.2 Removing the desktop input board . . . ........................................................................................87
7.8.3 Installing the desktop input board . .. . ........................................................................................ 88
7.9 LCD module .........................................................................................................................89
7.10 LVDS interface.......................................................................................................................90
7.10.1 Description of the LVDS interface ............................................................................................90
7.10.2 Removing the LVDS interface ................................................................................................90
7.10.3 Installing the LVDS interface .................................................................................................92
7.11 Pixel map processor (PMP).........................................................................................................93
7.11.1 Description of the PMP .......................................................................................................93
7.11.2 Diagnostics of the PMP .......................................................................................................94
7.11.3 Removing the PMP ...........................................................................................................95
7.11.4 Installing the PMP.............................................................................................................96
7.12 Engine Controller ....................................................................................................................98
7.12.1 Description of the engine controller .. ........................................................................................98
7.12.2 Removing the engine controller ..............................................................................................99
7.12.3 Installing the engine controller...............................................................................................100
7.13 Preformatter ........................................................................................................................101
7.13.1 Description of the preformatter ..............................................................................................101
7.13.2 Diagnostics of the preformatter..............................................................................................102
7.13.3 Removing the preformatter ..................................................................................................103
7.13.4 Installing the preformatter . . .................................................................................................105
7.14 Formatter ...........................................................................................................................106
7.15 Motor connector board .............................................................................................................108
7.16 Lens shift safety switch.............................................................................................................109
7.17 Front IR receiver....................................................................................................................110
7.18 Local keypad / IR receiver..........................................................................................................111
7.19 Lamp temperature sensor. . ........................................................................................................113
7.20 Ambient temperature and pressure sensor. .......................................................................................113
7.21 CLO / LFR sensor ..................................................................................................................115
8. Optical parts and servicing procedures..................................................................... 117
8.1 Description of the optical path......................................................................................................117
8.2 Lamp................................................................................................................................118
8.2.1 Lamp description.............................................................................................................118
8.2.2 Removing the lamp ..........................................................................................................118
8.2.3 Installing the lamp............................................................................................................120
8.3 Cold mirror..........................................................................................................................121
2R59770141 GALAXY NH-12 20/02/2008