Philips CARDIOMD, Service Manual

Page: 349 / 466

1MAN0158-H11 04-2005 CSIP Level 1
CardioMD Service Manual
„
12-1
12 C
ARDIO
MD AC O
PTION
Contents
12.1 Introduction .........................................................................................................................12-3
12.2 Overview .............................................................................................................................12-3
12.2.1 AC Option Bracket.................................................................................................12-4
12.2.2 Line Source Compartment......................................................................................12-4
12.2.3 Line Source Housing with Shutter and Attenuator.................................................12-6
12.3 Detailed Description............................................................................................................12-8
12.3.1 AC Option Block Diagram.....................................................................................12-8
12.3.2 Overview of Modifications.....................................................................................12-8
12.3.2.1 System Interconnections.......................................................................12-8
12.3.2.2 Gantry.................................................................................................12-10
12.3.2.3 Detector ..............................................................................................12-11
12.3.3 AC Option Bracket...............................................................................................12-12
12.3.3.1 AC Option Bracket Mechanics...........................................................12-12
12.3.3.2 AC Option Bracket Electronics ..........................................................12-13
12.3.4 Line Source Compartment....................................................................................12-16
12.3.4.1 Line Source Compartment Mechanics ...............................................12-17
12.3.4.2 Line Source Compartment Electronics...............................................12-22
12.3.5 CardioMD Detector and Table Console ...............................................................12-26
12.4 Calibration.........................................................................................................................12-27
12.4.1 Point Source Holder .............................................................................................12-27
12.5 Repair Procedures .............................................................................................................12-29
12.5.1 Dismounting Transmission Scanners ...................................................................12-29
12.5.1.1 Removing Transmission Scanners from the Detectors.......................12-29
12.5.1.2 Detaching the Line Source Compartment from the Bracket ..............12-33
12.5.2 AC Option Bracket Repairs..................................................................................12-34
12.5.2.1 Dismounting Detector Cable ..............................................................12-34
12.5.2.2 Disassembling the Bracket .................................................................12-34
12.5.2.3 Replacing the Motor Power Board .....................................................12-36
12.5.2.4 Replacing Limit Switches...................................................................12-36
12.5.2.5 Replacing the Motor and Gear Assembly ..........................................12-37
12.5.3 Line Source Compartment Repairs ......................................................................12-38
12.5.3.1 Removing Line Source Compartment Covers....................................12-38
12.5.3.2 Dismounting Connecting Cable .........................................................12-43
12.5.3.3 Replacing the AC Source Motion Board............................................12-44
12.5.3.4 Replacing the Motion Controller........................................................12-52
12.5.3.5 Replacing the AC Option Servo Motor ..............................................12-53
12.5.3.6 Replacing the Solenoid.......................................................................12-56
12.5.3.7 Replacing Collision Sensors...............................................................12-66
12.5.3.8 Exchanging Line Sources ...................................................................12-68
12.5.3.9 Opening the Line Source Attenuator..................................................12-75
12.5.3.10 Mounting Line Source Compartment Covers.....................................12-77
12.5.3.11 Mounting Transmission Scanners ......................................................12-81
12.5.3.12 Aligning Transmission Scanners........................................................12-81