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Kenwood KX-7030 Service Manual

Kenwood KX-7030
40 pages
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KX-7030
KENWOOD
SERVICE
MANUAL
(1991-3
PRINTED
IN
JAPAN
B51-4300-00(8)3545
Front
glass
Knob
Knob
Konb
Cassette
lid
Panel
Metallic
cabinet
(K29-4.153-04)
(K29-4151-04)
(K29-4180-04)
(A53-1290-03)
(A60-0057-02) (A01-1944-01)
(B10-1848-03)
STEREO
CASSETTE
OECK
Kx-7030
KENWOOD
POWER
aon
sore
Knob
Knob
Phone
jack
Dressing
plate
Dressing
plate
(K29-4150-03)
{K29-4010-04)
(E11-0189-05)
(BO3-27
14-03)
(BO3-27
12-03)
Power
cord
bushing
AC
power
cord*
(J42-0083-05)
{E30-}
REC
ome
PLAY
>
SYSTEM
CONTROW
naan
REAR
val
?
7
“p
T
oops
q
Phono
jack
Miniture
phone
jack
(E13-0445-05)
(E11-0188-05)
*
Refer
to
parts
list
on
page
39.

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Kenwood KX-7030 Specifications

Power IconPower
power consumption24 W
Audio Specifications IconAudio Specifications
wow and flutter0.045% (W.R.M.S.)
signal-to-noise ratio with Dolby C NR75 dB
signal-to-noise ratio with Dolby B NR67 dB
signal-to-noise ratio without Dolby NR59 dB
frequency response with normal tape20 Hz to 18, 000 Hz
frequency response with CrO2 tape20 Hz to 19, 000 Hz
frequency response with metal tape20 Hz to 20, 000 Hz
harmonic distortionLess than 0.7%
Input and Output IconInput and Output
input sensitivity/impedance for line in77.5 mV/50 kΩ
output level/impedance for line out490 mV/3 kΩ
headphones output power0.85 mW/8 Ω
Weight and Dimensions IconWeight and Dimensions
width440 mm
height127 mm
depth324 mm
weight5.1 kg

Summary

DISASSEMBLY FOR REPAIR

BLOCK DIAGRAM

CIRCUIT DESCRIPTION

Component Functions

Lists components and their specific functions and operations.

Auto-bias and Test Mode Operations

Details auto-bias functions and the test mode procedure.

IC Specifics and Timing

Covers TC9164N IC block diagram, pin connections, data input, and timing.

MECHANISM DESCRIPTION

Mechanism Specification

Lists the specifications and part numbers for the cassette mechanism components.

Operational Modes

Explains mechanism operations for playback, record, fast forward, rewind, cue, and review.

Rotary Switch Control

Describes rotary switch function and cam flow for mechanism control.

ADJUSTMENT

Cassette Mechanism Adjustments

Covers demagnetization, cleaning, azimuth, and tape speed adjustments.

PC Board Adjustments

Details adjustments for playback level, bias current, and fluorescent meter.

Measurement Equipment Setup

Illustrates the setup for measurement equipment during adjustments.

PC BOARD (Component side view)

SCHEMATIC DIAGRAM

EXPLODED VIEW (MECHANISM)

EXPLODED VIEW (MAIN UNIT)

PARTS LIST

New Parts

Lists newly introduced parts for this model.

Destination List

Shows destination codes for different units and regions.

SPECIFICATIONS

GENERAL

Provides general specifications like power consumption, dimensions, and weight.

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