JBL 6230 - Page 4

TABLE
OF CONTENTS
(Continued)
PAGE
SECTION IV.
THEORY OF
OPERATION
22
4.1 INPUT DIFFERENTIAL
AMPLIFIER
22
4.2 MODE SWITCH
22
4.3 POWER
AMPLIFIER
23
4.4 RELAY
DRIVER/DC DETECTOR
24
4.5 CLIP CIRCUIT
25
4.6 POWER
SUPPLY
25
SECTION V.
MAINTENANCE
26
5.1
GENERAL
26
5.2
REPAIRS AND WARRANTY
26
SECTION
VI. SCHEMATIC
DIAGRAM
ii