Yamaha dsp ax1 rx v1

Page 1

AV AMPLIFIER/AV RECEIVER

DSP-AX1IRX-V1

SERVICE MANUAL

IMPORTANT NOTICE

This manual has been provided for the me of authorized YAMAHA Retailers and their service personnel
It has been assumed that hamc service procedures inherent to rhe mrtrrsrry. and more spectfically YAMAHA Products. are already
known and understood by tlte us s. and have therefore not been restated

WARNING: Failure to follow appropriare servrce and safety procedures when servrciug this product may result in personal
injury. destruction of expettsne corrrponerm. and farlure of [he product to perform as specified. For these
reasons, we advise all YAMAHA product owners that an). service required should he performed by An
authorized YAMAHA Retailer or the nppomred service repre§enmlive.

IMPORTANT: The presentation or sale oftltis manual to arty individual or firm does not CtmsIIluIe authorization. certification
or recognition of any applicable rechmcal capabilities, or establish a prmcipleagenr relauonshlp of any
form.

The darn provided rs belie\ ed I0 be Accurate and applicable to [he umt(s) indrcnred on the cover. The research. engineering and
senlee departments of YAMAHA are continually sltning to improve YAMAHA products, Modifreanom are. therefore
rnevrrnble and spemficalmm are snbyecr [o ch'mge without notice or obligation [0 retrofit. Should any discrepancy appear to extstr
please CDHUICK the distributors Sen tce Division.

WARNING: Static discharges can destroy expensive components, Discharge luty static electricity your body may hate
accumulated by grounding yourself in the ground buss m the umt (heavy gauge black wrres connect to this
buss).

IMPORTANT: Turn rhe utut OFF durmg dis setttbly and pan replacement. Recheck All work before you apply power [0 rhe

\ unit. , /

I CONTENTS

T0 SERVICE PERSONNEL 1
FRONT PANELS 2
REAR PANELS 3~4
SPECIFICATIONS 5~8
INTERNAL VIEW 9
DISASSEMBLY PROCEDURES
SELF DIAGNOSIS FUNCTION
AMP ADJUSTMENTS

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This Service Manual uses recycled paper.

TUNER ADJUSTMENTS 34~37
IC DATA 38~53
PRINTED CIRCUIT BOARD 54~83
BLOCK DIAGRAM 84~88
PIN CONNECTION DIAGRAM 89
SCHEMATIC DIAGRAM 90~101
PARTS LIST. . 102~135
REMOTE CONTROL TRANSMITTER. 136~141

fiYAMAHA

YAMAHA CORPORATlON
PO Box 1 Hamamatsu,Japan

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DSP-AX1IRX-V1

DSP-AX1IRX-V1

I TO SERVICE PERSONNEL

1. Critical Components Information.

Components having special characteristics are marked A AC LEAKAGE

and must be replaced with parts having specifications equal WALL EQUIPMENT TESTER OR

to those originally installed. OUTLET UNDER TEST EQUIVALENT
2. Leakage Current Measurement (For 120V Models Only). @ :37

When service has been completed, it is imperative to verily f

that all exposed conductive surlaces are properly insulated

from supply circuits.

INSULATING

I Meter impedance should be equivalent to 1500 ohm shunted TABLE

by 0.15pF.
I Leakage current must not exceed 0.5mA. I Be sure to test for leakage with the AC plug in both

polarities.
CAUTION
EB F751 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 12A, 250V FUSE."
Aiv

CAUTION
F751 : REPLACE WITH SAME TYPE 12A, 250V FUSE.

ATTENTION
F751 :UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 12A, 250V.

WARNING: CHEMICAL
CONTENT NOTICE! K WARNING

Do not change the IMPEDANCE SELECTOR

The solder used in the production of this product switch setting while the power to this unit is
contains LEAD. In addition, other electrical/ an, otherwise this unit may be damaged.
electronic and/or plastic (where applicable)

components may also contain traces of chemicals .MPEDANCE SELECTOR

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/ BEEF
ELECTRONIC OR PLASTIC COMPONENTS IN gag-fig"-

YOUR MOUTH FOR ANY REASON o m», ..
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.

GIMME
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