Yamaha dsp ax2500

Page 1

AV RECEIVER/AV AMPLIFIER

RX-V2500 DSP-AX2500

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

injuny, destruction Ofexpensive 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, cenitication 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 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 Ihe disuibmors 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
FRONT PANELS. 3~4
REAR PANELS . 4~7
REMOTE CONTROL 7

SPECIFICATIONS / $$Iifi e~1o
INTERNAL VIEW 11
DISASSEMBLY PROCEDURES / Mfifllfinnnun 12~15
UPDATING FIRMWARE /

7 7 -L\"J I WESSLW 15~17
SELF DIAGNOSIS FUNCTION (DIAG) /

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This Service Manual uses recycled paper.

AMP ADJUSTMENT / 7 >7¥B§R¥ 43
DISPLAY DATA 44
IC DATA 45~48
BLOCK DIAGRAM 49~5O
PIN CONNECTION DIAGRAM 51
PRINTED CIRCUIT BOARD 52~69
SCHEMATIC DIAGRAM 71 ~81
PARTS LIST 83~119
REMOTE CONTROL 120

YAMAHA

YAMAHA CORPORATION

P.O.Box 1, HamamaIsu. Japan
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DS P-AX2500

RX-V2500/DSP-AX2500

I TO SERVICE PERSONNEL

C.ritical Components Information

Components having special characteristics are marked II
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 ohms
shunted by 0.15pF.

AC LEAKAGE
WALL EQUIPMENT TESTER OR
OUTLET UNDER TEST EQUIVALENT

@ID-

INSULATING
TABLE
0 Leakage current must not exceed 0.5mA.
0 Be sure to test for leakage with the AC plug in both polarities.

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

125V FUSE."
CAUTION

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

ATTENTION

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 / mfilét/ \ x 5!" I: O I, \ T

The P.C.Bs installed in this unit are soldered using the
following solder.

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SideA/Afi

SideB/BE

DSP P.C.B.

Lead Solder / $61 I) /\ > 51

Lead Free Solder/ fifltilaflxéi

FUNCTION P.C.B.

Lead Solder / fial I) /\ 1 5

Lead Free Solder/ fiiuIV/él

OPERATION P.C.B. -

Lead Free Solder/ fifltilaflxéi

MAIN P.C.B. - Lead Free Solder/ fittiunyéi
POWER PC.B. - Lead Free Solder/ fititfiuIV/fi'
INPUT P.C.B. Lead Solder / fiol I) /\ > 51' Lead Free Solder/ 322256 > 57'

CONTROL P.C.B.

Lead Solder / $61 I) /\ / g

Lead Free Solder/ fifiulV/fi'

Solder Dip

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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.

REFLOW

Process

FLOW Process

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- Sn+Ag+Cu(§5+§E+$Ii])

- Sn+Cu(§5+§|§D

' Sn+Zn+Bi (§%+fi§r§+ If X 7 X)

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