Yamaha htr 6290

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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 authorizedYAMAHA Retailers and their service personnel.

It has been assumedthat basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already known

and understood by the users, andhave 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 ofthe 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 principle-agent relationship of any form.

The data provided is believed to be accurate and applicable to the unit(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 yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).

\IMPORTANT: Turn the unit OFF during disassembly andpart replacement. Recheck all work before you apply power to the unit. /

I CONTENTS

TO SERVICE PERSONNEL ............................................ 2

DISPLAY DATA ....................................................... T1~72

FRONT PANELS ..... IC DATA .......................... 73-83
REAR PANELS ................................ BLOCK DIAGRAMS .................. ..... 84-87
REMOTE CONTROL PANELS ..................................... 10 PRINTED CIRCUIT BOARDS ............................... 88-119
SPECIFICATIONS Iéfilifi ................................. 11-16 PIN CONNECTION DIAGRAMS ......................... 120-122
INTERNAL VIEW .......................................................... 17 SCHEMATIC DIAGRAMS ............... 123-144
DISASSEMBLY PROCEDURES lfififlaflflfi ........... 13-26 REPLACEMENT PARTS LIST ........ 145-186
UPDATING FIRMWARE] REMOTE CONTROL ........................................... 187-190
77~A¢I7®§$fl3fi ..................................... 27-33 ADVANCED SETUP]

SELF-DIAGNOSTIC FUNCTION I leflmgfififiefifijé ......................................... 191 -1 97
53? 75 (E 3%Efififié) --------------------------------------- 34-59

AMP ADJUSTMENT I TVTEBEEE ............................. 70

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Thls service Manual uses recycled papor.

Copyright © 2008 WMAHA WEN All rights reserved.
This manual is copyrighted by YAMAHA and may not be copied or
redistributed either in print or electronically Without permissmh.

.YAMAHA

YAMAHA CORPORATION

P.O.Box 1, Hamamatsu. Japan
animate '08.09

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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 INSTUALéAJEING
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 solderl ,fl aIV/SIIE'DLT

All of the P.C.B.s installed in this unit and solder joints are
soldered using the lead free solder.

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

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

0 Sn + Cu (tin + copper)

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

Caution:
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.

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- Sn+Ag+Cu ($% + fiEI + $151)

- Sn+Cu (Sf/Hm)
- Sn+Zn+Bi (fifi + fifiu + €171)

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