Yamaha dsp ax1400 ax2400

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AV RECEIVER/AV AMPLIFIER
RX-V2400/RX-V2400RDS/DSP-AX2400

FIX-V1400/FIX-V1400RDS/HTR-5690/DSP-AX1400

SERVICE MANUAL

IMPORTANT NOTICE

This manual has been provided for the 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 or 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 principleragem 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 distributors Service Division.

WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have
accumulated by grounding yourselt 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

FRONT PANELS ..
REAR PANELS. . 6~12
REMOTE CONTROL .................................................... 13
SPECIFICATIONS .................................................. 14~17
INTERNAL VIEW ......................................................... 1s
DISASSEMBLV PROCEDURES / Mfilflfi ......... 19~22
UPDATING FIRMWARE/

77-ADI7OSESA5 .23~24
SELF DIAGNOSIS FUNCTION (DIAG) /

BER/WERE: (€477) ..................................... 25~49

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This Service Manual uses recycled paper.

Copyright 2003 YAMAHA CORPORATION
This manual is copyrighted by YAMAHA and may not be copied or
redistributed either in print or electronically without permission.

AMP ADJUSTMENT / 7 >7DEI3§EIE 50~51

DISPLAY DATA 52~53
IC DATA ......... .. 54~63
BLOCK DIAGRAM ................................................. 64~65
PRINTED CIRCUIT BOARD .................................. 66~85
PIN CONNECTION DIAGRAM .................................... 86
SCHEMATIC DIAGRAM .. 87~97
PARTS LIST. 99~141
REMOTE CONTROL. 142~147
Parts List for Carbon Resistors .............................. 148

YAMAHA

YAMAHA CORPORATION
P.O.Box 1, Hamamatsu. Japan

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RX-V2400/FIX-V2400RDS/DSP-AX24OO

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RX-V2400/RX-V2400RDS/DSP-AX2400
RX-V1400/RX-V1400RDS/HTR-5690/DSP-AX1400

I TO SERVICE PERSONNEL

Critical Components Information

Components having special characteristics are marked I!
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 0.15m:

CAUTION

AC LEAKAGE
WALL EQUIPMENT TESTER OR
OUTLET UNDER TEST EQUIVALENT

(DID-

J:

INSULATING
TABLE
0 Leakage current must not exceed 0.5mA.

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

ED F1, F2: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 10A,

AV 125v FUSE.

CAUTION

F1, F2: REPLACE WITH SAME TYPE 10A, 125V FUSE.

ATTENTION

F1, F2: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 10A, 125V.

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 REA-

SON WHATSOEVER!

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.

About lead-free solder l "MB! \ x 9 I: 3 I, \ T

The foil side of all P.C.B.s used for this product are
soldered with lead-free soldering material which is an alloy
of Sn+Ag+Cu (tin + silver + copper).

However, the surface mount devices on the component
side of the DSP P.C.B., FUNCTION P.C.B. and
CONVERSION P.C.B. are soldered with the lead solder.

Among some types of lead-free solder currently available,
it is recommended to use one of the following types for the
repair work.

- Sn + Ag + Cu (tin + silver + copper)

. Sn + Cu (tin + copper)

- Sn + Zn + Bi (tin + zinc + bismuth)

Caution:

1. As the melting point temperature of the lead-free solder
is about 30°C to 40°C (50°F to 70°F) higher than that of
the lead solder, be sure to use a soldering iron suitable
to each solder.

2. If lead solder must be used, be sure to remove lead-
free solder from each terminal section of the parts to be
replaced and from the area around it completely before
soldering, or make sure that the lead-free solder and
lead solder melt together fully.

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