Yamaha kx e300

Page 1

STEREO CASSETTE DECK

KX-E3OO

SERV CE MANUAL

For the system operation of KX-E300, please refer to Service Manual #100805 for the CRX-E300/NX-E300.

DDDDDDDD

DDIIIEIEIEIDEIDEDDDDDDCRX-E300/NX-E300EI[IIIIIJIIIIJIIIEIIIIIII

-- 12121211121:

4

"/7 IMPORTANT NOTICE \

This manual has been provided for [he use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already known and understood by the users,
and have therefore not been restated.

WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruction of expensive
components, and failure of the product to perform as specified. For these reasons, we advise all YAMAHA product owners that any service
required should be performed by an authorized YAMAHA Retailer or the appointed service representative.

IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or recognition of any applicable
technical capabilities, or establish a principleeagem relationship of any form.

The data provided is believed to be accurate and applicable to the unii(s) indicated on the cover. The research, engineering. and service departments of YAMAHA
are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation
to retrofit. Should any discrepancy appear to exist, please contact the distributor's Service Division.

WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to
the ground buss in the unit (heavy gauge black wires connect to this buss).
IMPORTANT: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.

\, //

I CONTENTS

To SERVICE PERSONNEL ................... 2 DISPLAY DATA ............................ 13
REAR PANELS ........................... 2-3 C DATA ............................... 14-15
SPECIFICATIONS . .. . . .. .. 3 BLOCK DIAGRAM ......

DIMENSIONS ............................... 4 PRINTED CIRCUIT BOARD

NTERNAL VIEW ............................ 4 SCHEMATIC DIAGRAM ..................... 21
DISASSEMBLY PROCEDURESD [I [I [I [I ..... 5-7 PARTS LIST ............................ 23-33
ADJUSTMENTSD [I [I .................... 8-12 PARTS LIST FOR CARBON RESISTORS ....... 34

2039- EZ?:17M3. III V-QQEVJfiiifiétfifi [fruit
This Service Manual uses recycled paper.

fiYAMAHA

YAMAHA CORPORATION
PO. Box 1, Hamamalsu, Japan

Page 2

KX-E300

I TO SERVICE PERSONNEL

1. Critical Components Information
Components having special characteristics are marked A
and must be replaced with parts having specifications equal
to those originally installed.

2. Leakage Current Measurement (For 120V Models Only)
When service has been completed, it is imperative to verify
that all exposed conductive surfaces are properly insulated
from supply circuits.

0 Meter impedance should be equivalent to 1500 ohm shunted
by 0.1 stiF.

o Leakage current must not exceed 0.5mA.

0 Be sure to test for leakage with the AC plug in both
polarities.

WALL
OUTLET

®

EQUIPMENT
UNDER TEST

w

AC LEAKAGE
TESTER OR
EQUIVALENT

WARNING: CHEMICAL CONTENT NOTICE!

The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or
plastic (where applicable) components may also contain traces of chemicals found by the California Health and
Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm.

DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR

ANY REASON WHATSOEVER!

INSULATING
TABLE

;

Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes

or expose eyes to solder/flux vapor!

If you come in contact with solder or components located inside the enclosure of this product, wash your hands

before handling food.

I REAR PANELS

V U, C models

V B, G models

t-i