CONTENTS
PART 1: ELECTRONIC PART and UPGRADING
Section A: Identication system
1. Mainboard identication page from 1 to 1
2. Modules Identication and replacement page from 1 to 1
Section B: LRx4.5 Mainboard revisions
LRx4.5-MB First Version Rk = 12 Ohm
1. Electrical diagram sheet from 1 to 2
2. Components layout sheet from 1 to 1
3. Printed Circuit Board Exploded View sheet from 1 to 1
4. PCB parts list page from 1 to 1
5. Exploded PCB parts list page from 1 to 1
Section C: Power Side 2 Module Revisions
PS2-P/N.1 First Version
1.Electrical diagram sheet from 1 to 2
2. Components layout sheet from 1 to 1
3. PCB parts list page from 1 to 1
PS2-P/N.1A Upgrading Version
1.Electrical diagram sheet from 1 to 2
2. Components layout sheet from 1 to 1
3. PCB parts list page from 1 to 1
Section D: Class AB Final Modules
AB7-2.1 First Version
1.Electrical diagram sheet from 1 to 1
2. Components layout sheet from 1 to 1
3. PCB parts list page from 1 to 1
Section E: Controls Modules
LRx 4.5 - C First Version - Rev. = .1
1. Electrical Diagram sheet from 1 to 8
2. Components layout sheet from 1 to 1
3. PCB parts list page from 1 to 2
LRx 4.5 - C Upgrading Version - Rev. = .1A
1. Electrical Diagram sheet from 1 to 8
2. Components layout sheet from 1 to 1
3. PCB parts list page from 1 to 2
Table of the last upgrading revisions
UPGRADING REVISIONS
PART 1
ELECTRONIC PART
PART 2
MECHANICAL PART
SECT. B
Mainboard
Rk = 12 Ohm
SECT. G
Comp. Pin-out
SECT. A - Exploded views
and parts list
Rev. A
SECT. C
PS2-P/N
SECT. D
AB7-2
SECT. F
PART 3
Technical Notes
Technical
Notes
PS2.1
ABLD.1
4.5-C.1
PSC.2
CPU.1
Rev. A Rev. A
ABLD
CPU
PSC
SECT. E
Controls
Rk = 12 Ohm
Rev. B
PS2.1A
ABLD.1
4.5-C.1A
PSC.2
CPU.1
Rev. A
Rev. A
AB7-2.1
AB7-2.1