Kenwood KAC-X650D User Manual

POWER AMPLIFIER
KAC-PS650D
SERVICE MANUAL
© 2002-3 PRINTED IN KOREA
B51-7935-00 (K) 3547
KAC-X650D
30 30
MONO(Lch)STEREO
OPERATION
A.CH B.CHFILTER
A.CH HPF
FILTER FREQUENCY(Hz)
LPF
OFF
HPF
HPF
OFF
B.M.S.
+12dB
OFF
REMOTE
INPUT SELECTOR
GND
EXT.AMP.CONT.
LINE IN
L
R
L
R
SPEAKER
OUTPUT
POWER IN
P.CON
BATT.
G
N
D
F
U
S
E
(
3
0Ax2
)
LEFT
BRIDGED
RIGHT SUB
SUB
A
B
A B SUB
BABA A SUB
200
50
B.CH HPF
200
50
B.CH LPF
200
50
SUB.CH LPF
200
50

Kenwood KAC-X650D Specifications

General

Brand	Kenwood
Model	KAC-X650D
Category	Amplifier
Language	English

Summary

KAC-PS650D/X650D Service Manual Introduction

Microcomputer Terminal Description

Details the functions and operating conditions of the microcomputer's terminals.

Circuit Descriptions

Shock Noise Prevention Circuit

Explains the circuit designed to prevent shock noise.

PWM Wave Former and Dead Time Oscillation

Details the PWM wave generation and dead time oscillation circuits.

Class-D Amplifier Stage

Describes the Class-D amplifier circuitry and its components.

Adjustment and Calibration

Idle Current Adjustment Procedure

Outlines the procedure for adjusting idle current using specific test points.

Hardware Layouts and Schematics

PC Board Foil Side View

Shows the foil side of the main circuit board.

PC Board Component Side View

Illustrates the component placement side of the main circuit board.

Schematic Diagram

Provides the detailed electronic schematic for the amplifier circuits.

Exploded View

Illustrates the physical assembly of the amplifier with part references.

Parts List

Lists all components used in the amplifier with their part numbers.

Specifications