Datecs EP-50H, Service Manual, Page: 3 / 40

CONTENTS
INTRODUCTION ..................................................................................................... 5
1.
FEATURES ................................................................................................. 5
2. SPECIFICATIONS ....................................................................................... 6
3. DISASSEMBLY AND REASSEMBLY ......................................................... 7
3.1 Disassembly Procedure .............................................................................. 7
3.2 Reassembly Procedure ............................................................................. 11
4. SERVICE PARTS LIST ............................................................................. 12
4.1 Parts List for Mechanism .......................................................................... 12
4.2 Disassemble Drawing................................................................................ 13
5. BLOCK SCHEME ..................................................................................... 14
6. MAIN BOARD ........................................................................................... 15
6.1. Electrical Diagram ..................................................................................... 16
6.2. PCB .......................................................................................................... 17
Top View ................................................................................................... 17
Bottom View ............................................................................................. 18
Top Layer .................................................................................................. 19
Bottom Layer ........................................................................................... 20
6.3. List of parts ............................................................................................... 21
7. INTERFACE .............................................................................................. 24
7.1. Parallel ..................................................................................................... 25
7.1.1 Electrical Diagram ..................................................................................... 25
7.1.2. PCB .......................................................................................................... 26
Top View ................................................................................................... 26
Bottom View ............................................................................................. 27
Top Layer .................................................................................................. 28
Bottom Layer ............................................................................................ 29
7.1.3. List of parts ............................................................................................... 30
7.2.
RS232 ....................................................................................................... 31
7.2.1 Electrical Diagram ..................................................................................... 32
7.2.2. PCB .......................................................................................................... 33
Top View ................................................................................................... 33
Bottom View ............................................................................................. 34
Top Layer .................................................................................................. 35
Bottom Layer ............................................................................................ 36
7.2.3. List of parts ............................................................................................... 37
8. OUTLINE DRAWING ................................................................................. 38
9. WALL MOUN UN UNTING HOLES LAYOUT DRAWING ........................... 39