Yamaha dsp ax1900

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AV RECEIVER/AV AMPLIFIER

RX-V1900/HTR-6290/

DSP-AX1900

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/ IMPORTANT NOTICE \

This manual has been provided for the use of authorizedYAMAI-[A Retailers and their service personnel

it has been assumedthat basic service procedures inherent to the industry, and more speci ficalty 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 fliis manual to any individual or firm does not constitute authoriZation, certifiCation or
recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form

The data provided is believed to be accurate and applicable to the uni t(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 di sassembly and part rept acement Recheck all work before you apply power to the unit J

I CONTENTS

TO SERVICE PERSONNEL ............................................ 2
FRONT PANELS ................
REAR PANELS

. 6-9

REMOTE CONTROL PANELS ..... 1o
SPECIFICATIONSI@%iit§ 11-16
INTERNALVIEW ................................................. 17
DISASSEMBLY PROCEDUREsrfifia$itia 18-26

UPDATING FIRMWAREI
7; -Lx'jI70)§-��viAJ,r ..................................... 27-33
SELF-DIAGNOSTIC FUNCTION 1

51-470 (fiai3flfififig) .................................. 34-69
AMP ADJUSTMENT l 7 7 jfifififilfl ............................. 70

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Zmfi-EZ'7217JIIIL I JV-flfitmfiifiififi Lcusn
Thls Service Mamual uses recycled paper.

101113

Copyright © 2008YAMAHA mm All rights reserved
This manual is copyrighted by YAMAHA and may not be copied or
redistributed SliltEll in print or electronically without DGFmISSlOlli

DISPLAY DATA ....................................................... 71-72
IC DATA ................... ..73-83
BLOCK DIAGRAMS ..84-87
PRINTED CIRCUIT BOARDS ..... 88-119
PIN CONNECTION DIAGRAMS .120-122
SCHEMATIC DIAGRAMS ........... .123-144

REPLACEMENT PARTS LIST .145-186
REMOTE CONTROL ........................................... 187-190
ADVANCED SETUP/

$fi®$fi§fifj§ ......................................... 191-197

.YAMAHA

YAMAHA CORPORATION

P.O.Box 1, Hamamalsu. Japan
animate '0809

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DSP-AX1900

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RX-V1900/HTR-6290/DS P-AX1900

I TO SERVICE PERSONNEL

AC LEAKAGE
Critical Components Information WALL EQUIPMENT TESTER OR
Components having special characteristics are marked A and OUTLET UNDER TEST EQUIVALENT

must be replaced with parts having specifications equal to those

originally installed. ® D-

2. Leakage Current Measurement (For 120V Models Only) J_-
When service has been completed, it is imperative to verify '

that all exposed conductive surfaces are properly insulated INSTUALBAJEING
from supply circuits.
0 Meter impedance should be equivalent to 1500 ohms shunted . Leakage current must not exceed 0.5mA.
by 0-15 HP 0 Be sure to test for leakage with the AC plug in both polari»

ties.

CAUTION
IE3 F1,F2: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 10A,
_A_V I.
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!

This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive
harm.

DO NOT PLACE SOLDER. ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON
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 fifidl \VfiIC'DLT

All of the P.C.B.s installed in this unit and solder joints are ZISI§1I§IZI§EIZLETLT Uéfi/RTUDETEEBJZOV \/ @NHIZ
soldered using the lead free solder. ckéIfi/EE Iififia/ \DSYV \yéilfllfithig}
Among some types of lead free solder currently available, final \y/flzlgttn < ObOTEiEbBé U $373K Ilééffifivfl:
it is recommended to use one of the following types for lat-FEECDCIZ5tifiua/V/fidDIEfi7EIEfiL/i3o
the repair work. - Sn+Ag+Cu (fifi + E + ilfi)
0 Sn + Ag + Cu (tin + silver + copper) - Sn+CU ($5 + fin)
- Sn + Cu (tin + copper) - Sn+Zn+Bi (fifi + fifiu + 6171)
0 Sn + Zn + BI (tin + Zinc + bismuth) 3% .
Caution: fifu /\/§0)n$,,5\mnx trIEIJE%CD?I:7\U/\/$°I CHE 30~
As the melting point temperature of the lead free solder 4O °CT$T§I% < EDTDEKI'UDTC %TL%IL®l \/7I CI: 9
is about 80°C to 40°C (50°F to 70°F) higher than that of 7:/ \yéfé'CE/Cififi < fiév

the lead solder, be sure to use a soldering iron suitable
to each solder.