Table of Contents
GENERAL INFORMATION .............................................................................................................................................. 4
D
ESCRIPTION
..................................................................................................................................................................... 4
R
EVISION
H
ISTORY
............................................................................................................................................................. 4
D
RAWINGS
, D
IAGRAMS
,
AND
O
THER
G
RAPHICS
.................................................................................................................. 5
P
ACKING
L
IST
/U
NPACKING
P
ROCEDURE
.............................................................................................................................. 5
I
NSTALLATION
................................................................................................................................................................... 5
Rack-Mounting ............................................................................................................................................................. 6
Turret-Mounting (DAX6O only) .................................................................................................................................... 6
Input Connections ......................................................................................................................................................... 7
Output Connections....................................................................................................................................................... 7
Selecting Balanced or Unbalanced Output Connections................................................................................................. 7
Grounding the Center Tap............................................................................................................................................. 8
Split-Center-Tap Operation........................................................................................................................................... 8
Auxiliary DC Power Supply........................................................................................................................................... 8
P
OWER
C
ONNECTION
.......................................................................................................................................................... 9
Converting the Amplifiers to 240 VAC ........................................................................................................................... 9
S
ETTING THE
"I
NPUT
L
EVEL
”
C
ONTROL
.............................................................................................................................. 9
R
EPLACING THE
F
USE
......................................................................................................................................................... 9
I
NITIAL
T
ROUBLESHOOTING
...............................................................................................................................................10
SERVICE INFORMATION ...............................................................................................................................................11
Locating the Test Points ...............................................................................................................................................11
Measuring DC Voltages ...............................................................................................................................................11
Measuring AC Voltages................................................................................................................................................12
Locating the Driver and Power Transistors ..................................................................................................................12
Removing and Replacing Transistors............................................................................................................................13
Testing Transistors.......................................................................................................................................................14
DAX6O Circuit Description .........................................................................................................................................14
DAX12O Circuit Description........................................................................................................................................14
APPENDIX A: LIMITED WARRANTY/SERVICE POLICY..........................................................................................17
L
IMITED
W
ARRANTY
.........................................................................................................................................................17
S
ERVICE
P
OLICY
................................................................................................................................................................18
