Demon PMA-1520AE - Default Chapter; Table of Contents

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ABOUT THIS MANUAL .............................................................3

What you can do with this manual ............................................3

Using Adobe Reader (Windows version) ..................................4

SAFETY PRECAUTIONS ..........................................................6

NOTE FOR SCHEMATIC DIAGRAM .........................................7

NOTE FOR PARTS LIST ...........................................................7

TECHNICAL SPECIFICATIONS ................................................9

DIMENSION ...............................................................................9

DISASSEMBLY ........................................................................10

1. FRONT PANEL ASSY ........................................................11

2. POWER AMP PWB ............................................................12

3. INPUT PWB .......................................................................12

4. U-COM PWB ......................................................................13

5. REC INPUT PWB ...............................................................13

6. TRANS ...............................................................................13

ADJUSTMENT .........................................................................14

IDLING CURRENT ALIGNMENT ............................................14

TROUBLE SHOOTING ............................................................15

1. The power can not be turned on.

(

Power indication LED does not light.

）

...................................15

2. The power turned on,

but a sound does not output normally. (Both channels) .........15

LEVEL DIAGRAM ....................................................................17

POWER DIAGRAM ..................................................................18

WIRING DIAGRAM ..................................................................19

PRINTED WIRING BOARDS ...................................................20

SCHEMATIC DIAGRAMS (1/3) ...............................................24

SCH01_AMP_POWER_FRONT .............................................24

SCH02_INPUT_TONE ............................................................25

SCH03_U-COM_FUNCTION ..................................................26

EXPLODED VIEW ...................................................................27

PACKING VIEW .......................................................................29

SEMICONDUCTORS ...............................................................30

1. IC's .....................................................................................30

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