TABLE OF CONTENTS 
3 
Table of Contents 
SAFETY INSTRUCTIONS .................................................. 5 
OVERVIEW....................................................................... 9 
Introduction...........................................9 
Series Lineup / Main Features ............. 11 
Principle of Operation.......................... 12 
Front Panel Overview ........................... 14 
Rear Panel Overview ............................ 17 
CV/CC Crossover Characteristics ......... 18 
SETUP ........................................................................... 19 
Power Up ............................................. 19 
Load Cable Connection ........................ 20 
Output On/Off..................................... 21 
Beep On/Off ........................................ 21 
Front Panel Lock .................................. 22 
OPERATION .................................................................. 23 
CH1/CH2 Independent Mode .............. 23 
CH3 Independent Mode....................... 25 
CH1/CH2 Tracking Series Mode........... 27 
CH1/CH2 Tracking Parallel Mode ........ 19H32 
SAVE/RECALL SETUP ..................................................... 20H34 
Save Setup ........................................... 21H34 
Recall Setup......................................... 22H35 
REMOTE CONTROL ....................................................... 23H36 
Remote Control Setup.......................... 24H36 
Remote Connection Step...................... 25H37 
Command Syntax ................................. 26H38 
    GPD-3303 Series User Manual 
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Error Messages ....................................27H38 
Command List......................................28H39 
Command Details ................................ 29H40 
FAQ................................................................................30H45 
APPENDIX......................................................................31H46 
Fuse Replacement ................................32H46 
Specifications ......................................33H47 
Declaration of Conformity....................34H49 
INDEX............................................................................35H50