Table of Contents
Section1: Introduction ............................................................................................................................................................ 4
Overview ............................................................................................................................................................................ 5
Component Placement Breakdown .................................................................................................................................... 6
Electrical Safety Warning ................................................................................................................................................... 8
Section 2: Mechanical Assembly ........................................................................................................................................... 9
Installing the feet ................................................................................................................................................................ 9
Mains Transformer, Choke, and Mains Installation ............................................................................................................ 9
Configuring the Primary Winding for your World Region .............................................................................................. 11
Installing the IEC Socket (AC Socket) and Rocker Switch ........................................................................................... 14
Installing the Choke ...................................................................................................................................................... 15
Installing the Mains Transformer .................................................................................................................................. 15
Wiring up the Mains ...................................................................................................................................................... 16
Shield Positioning ......................................................................................................................................................... 17
Section 3: M2 Power Supply ................................................................................................................................................ 19
M2 Power Supply Board Parts List .................................................................................................................................. 20
M2 Power Supply Board Construction Steps ................................................................................................................... 21
Installing the Valve Bases ............................................................................................................................................ 21
Installing the Resistors ................................................................................................................................................. 23
Installing resistors in the HT ADJUST position ............................................................................................................. 25
Zener Diode Installation ................................................................................................................................................ 26
Electrolytic Capacitor Installation .................................................................................................................................. 27
Installing the Bridge Rectifier ........................................................................................................................................ 29
Installing the Non-Polarized Capacitors........................................................................................................................ 29
Wiring the M2 Power Supply Board .............................................................................................................................. 30
Filament Component Section of the M2 Power Supply Board ...................................................................................... 33
Regulator Installation .................................................................................................................................................... 34
Installing the LED Harness ........................................................................................................................................... 35
Remaining Wire Connections ....................................................................................................................................... 35
Installing the Heatsink .................................................................................................................................................. 36
Installing the Choke Wire .............................................................................................................................................. 37
Inter-wiring to the Mains Transformer ........................................................................................................................... 38
Securing the Regulators to the Heatsink ...................................................................................................................... 41
Section 4: M2 Power Supply Testing ................................................................................................................................... 43
Preparations ..................................................................................................................................................................... 43
Fitting the Mains Fuse .................................................................................................................................................. 43
Installing the LED Indicator ........................................................................................................................................... 44
Installing the tubes ........................................................................................................................................................ 44
Tidying Up .................................................................................................................................................................... 44
Ohm Check ...................................................................................................................................................................... 45
Electrical Testing .............................................................................................................................................................. 45
Voltage Check Summary ................................................................................................................................................. 47
DC Voltage Checks ...................................................................................................................................................... 47
AC Voltage Checks ...................................................................................................................................................... 47
Section 5: Digital Power Supply PCB .................................................................................................................................. 48
Parts List .......................................................................................................................................................................... 48
Construction ..................................................................................................................................................................... 48
Installing the LED‟s ....................................................................................................................................................... 49
Installing the Capacitors ............................................................................................................................................... 49
Installing the Diodes ..................................................................................................................................................... 50
Installing the Resistors ................................................................................................................................................. 51
Board Installation and Wiring ........................................................................................................................................... 52
Section 6: Install the Screen ................................................................................................................................................ 54
Section 7: Installing the Digital PCB .................................................................................................................................... 55
Digital Board Overview ..................................................................................................................................................... 55
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