Text preview for : Yamaha-RXV2500 rec.pdf part of Yamaha RXV2500 receiver



Back to : Yamaha-RXV2500 rec.part01 | Home

AV RECEIVER/AV AMPLIFIER

RX-V2500/DSP-AX2500




DSP-AX2500
RX-V2500/
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 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, 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 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 disassembly and part replacement. Recheck all work before you apply power to the unit.




I CONTENTS
TO SERVICE PERSONNEL .......................................... 2 AMP ADJUSTMENT 43
FRONT PANELS ........................................................ 3~4 DISPLAY DATA ........................................................... 44
REAR PANELS .......................................................... 4~7 IC DATA ................................................................. 45~48
REMOTE CONTROL ...................................................... 7 BLOCK DIAGRAM ................................................. 49~50
SPECIFICATIONS / .................................. 8~10 PIN CONNECTION DIAGRAM .................................... 51
INTERNAL VIEW ......................................................... 11 PRINTED CIRCUIT BOARD .................................. 52~69
DISASSEMBLY PROCEDURES / .......... 12~15 SCHEMATIC DIAGRAM ........................................ 71~81
UPDATING FIRMWARE PARTS LIST ......................................................... 83~119
..................................... 16~17 REMOTE CONTROL .................................................. 120
SELF DIAGNOSIS FUNCTION (DIAG)
18~42




100922
P.O.Box 1, Hamamatsu, Japan
'04.11
RX-V2500/DSP-AX2500


I TO SERVICE PERSONNEL AC LEAKAGE
WALL EQUIPMENT TESTER OR
1. Critical Components Information OUTLET UNDER TEST EQUIVALENT
Components having special characteristics are marked s
and must be replaced with parts having specifications equal
DSP-AX2500




to those originally installed.
RX-V2500/




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 INSULATING
from supply circuits. TABLE
G Meter impedance should be equivalent to 1500 ohms G Leakage current must not exceed 0.5mA.
shunted by 0.15µF. G 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 /
The P.C.B.s installed in this unit are soldered using the
following solder.
Side A / Side B /
DSP P.C.B. Lead Solder / Lead Free Solder /
FUNCTION P.C.B. Lead Solder / Lead Free Solder /
OPERATION P.C.B. ­ Lead Free Solder /
MAIN P.C.B. ­ Lead Free Solder /
POWER PC.B. ­ Lead Free Solder /
INPUT P.C.B. Lead Solder / Lead Free Solder /
CONTROL P.C.B. Lead Solder / Lead Free Solder /

Side A SMT REFLOW Process



Solder Dip

Side B MI FLOW Process

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)


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.
2
RX-V2500/DSP-AX2500



I FRONT PANELS
RX-V2500 (U, C, A models)




DSP-AX2500
RX-V2500/
RX-V2500 (R, T, K, L models)




RX-V2500 (B, G models)




3
RX-V2500/DSP-AX2500


DSP-AX2500 (J model)
DSP-AX2500
RX-V2500/




REAR PANELS
RX-V2500 (U, C models)




RX-V2500 (R model)




4
RX-V2500/DSP-AX2500


RX-V2500 (T model)




DSP-AX2500
RX-V2500/
RX-V2500 (K model)




RX-V2500 (A model)




5
RX-V2500/DSP-AX2500


RX-V2500 (B model)
DSP-AX2500
RX-V2500/




RX-V2500 (G model)




RX-V2500 (L model)




6
RX-V2500/DSP-AX2500


DSP-AX2500 (J model)




DSP-AX2500
RX-V2500/
I REMOTE CONTROL
RX-V2500 (U, C, R, T, K, A, L models) RX-V2500 (B, G models)
DSP-AX2500 (J model)




7
RX-V2500/DSP-AX2500



I SPECIFICATIONS
I Audio Section /
Minimum RMS Output Power (Power Amp. Section) / Signal to Noise Ratio / (IHF-A network)
DSP-AX2500
RX-V2500/




(20 Hz to 20 kHz) PHONO (MM) (Input shorted) to SP OUT
FRONT L/R U, C, R, T, K, L models (5mV) ............................... 86dB or more
U, C, R, T, K, A, B, G, L models (0.04% THD, 8 ohms) .. 130W + 130W A, B, G models (5mV) ............................................ 81dB or more
J model (0.06% THD, 6 ohms) ........................... 130W + 130W J model (2.5mV) ..................................................... 80dB or more
CENTER CD, etc. (Input shorted, STEREO) to SP OUT
U, C, R, T, K, A, B, G, L models (0.04% THD, 8 ohms) ... 130W 200mV .................................................................... 98dB or more
J model (0.06% THD, 6 ohms) ........................................ 130W 250mV .................................................................. 100dB or more
SURROUND L/R Residual Noise / (IHF-A network)
U, C, R, T, K, A, B, G, L models (0.04% THD, 8 ohms) .. 130W + 130W FRONT L/R SP OUT ............................................... 150µV or less
J model (0.06% THD, 6 ohms) ........................... 130W + 130W
SURROUND BACK L/R Channel Separation / (STEREO)
U, C, R, T, K, A, B, G, L models (0.04% THD, 8 ohms) .. 130W + 130W PHONO (Input shorted, 1 kHz/10 kHz) ...................... 60dB or more/55dB or more
J model (0.06% THD, 6 ohms) ........................... 130W + 130W CD, etc. (Input 5.1 k-ohms shorted, 1 kHz/10 kHz) ... 60dB or more/45dB or more

Maximum Power / (EIAJ, 1kHz, 10% THD) Tone Control Characteristics /
FRONT L/R BASS
R, T, K, L models (8 ohms) ................................. 180W + 180W Boost/Cut .............................................................. ±6dB (50Hz)
J model (6 ohms) ................................................ 180W + 180W Turnover Frequency ....................................................... 350Hz
CENTER TREBLE
R, T, K, L models (8 ohms) .............................................. 180W Boost/Cut ............................................................ ±6dB (20kHz)
J model (6 ohms) ............................................................. 180W Turnover Frequency ...................................................... 3.5kHz
SURROUND L/R Filter Characteristics /
R, T, K, L models (8 ohms) ................................. 180W + 180W FRONT, CENTER, SURROUND, SURROUND BACK SP Small
J model (6 ohms) ................................................ 180W + 180W (H.P.F.) ....... fc=40/60/80/90/100/110/120/160/200Hz / 12dB oct.
SURROUND BACK L/R SUBWOOFER (L.P.F.) ..... fc=40/60/80/90/100/110/120/160/200Hz /
R, T, K, L models (8 ohms) ................................. 180W + 180W 24dB oct.
J model (6 ohms) ................................................ 180W + 180W
Dynamic Power Per Channel / (IHF) I Video Section /
U, C, R, T, K, A, L models (8/6/4/2 ohms) ..... 165/205/260/340W Video Signal Type /
DIN Standard Output Power Per Channel [B, G models] Wall Paper
(1 kHz, 0.7% THD, 4 ohms) U, C, R, K, J models .......................................................... NTSC
FRONT L/R ............................................................. 190W + 190W T, A, B, G, L models ............................................................. PAL
CENTER ............................................................................... 190W Video Conversion
SURROUND L/R ..................................................... 190W + 190W U, C, R, T, K, A, B, G, L, J models .................................... NTSC
SURROUND BACK L/R .......................................... 190W + 190W R, T, A, B, G, L models ......................................................... PAL
Dynamic Headroom / Composite Video Signal Level /
U, C, R, T, K, A, L models (8 ohms) .................................. 1.03dB ............................................................................ 1 Vp-p / 75 ohms
IEC Power / [B, G models] (1 kHz, 0.04% THD, 8 ohms) S-Video Signal Level /
FRONT L/R ............................................................. 140W + 140W Y ......................................................................... 1 Vp-p / 75 ohms
C .................................................................. 0.286 Vp-p / 75 ohms
Damping Factor /
20 Hz to 20 kHz, SPEAKER-A, 8 ohms .................... 140 or more Component Video Signal Level /
Y ......................................................................... 1 Vp-p / 75 ohms
Input Sensitivity / Input Impedance
Pb/Pr ............................................................... 0.7 Vp-p / 75 ohms
PHONO (MM) ................................................. 3.5 mV / 47 k-ohms
CD, etc. ......................................................... 200 mV / 47 k-ohms Video Maximum Input Level /
MULTI CH INPUT ............................................................................ 1.5 Vp-p or more
FRONT L/R, CENTER, SURROUND L/R, SUB WOOFER Video Signal to Noise Ratio /
.................................................................. 200 mV / 47 k-ohms ................................................................................. 60 dB or more
Maximum Input Signal Level / Monitor Out Frequency Response /
PHONO (MM) (1 kHz, 0.1% THD) ........................ 100mV or more Composite Video Signal, S-Video Signal ...... 5 Hz to 10 MHz, -3 dB
CD, etc. (1 kHz, 0.5% THD) ..................................... 2.4V or more Component Video Signal, D4-Video Signal (J model)
Output Level / Output Impedance ........................................................................ 5 Hz to 60 MHz, -3 dB
REC OUT ..................................................... 200 mV / 1.2 k-ohms
PRE OUT (FRONT L/R, CENTER, SURROUND L/R, I FM Section /
SURROUND BACK L/R) .................................... 1.0 V / 500 ohms Tuning Range /
SUB WOOFER ................................................... 2.0 V / 500 ohms U, C models ..................................................... 87.5 to 107.9 MHz
[U, C, A, B, G models] R, L models ......................... 87.5 to 108.0 / 87.50 to 108.00 MHz
ZONE 2 OUT .................................................... 1.0 V / 1.2 k-ohms T, K, A, B, G models .................................... 87.50 to 108.00 MHz
ZONE 3 OUT .................................................... 1.0 V / 1.2 k-ohms J model ............................................................... 76.0 to 90.0 MHz
Headphone Jack Rated Output / Impedance 50dB Quieting Sensitivity / (IHF)
(1kHz, 100% MOD.)
CD, etc. (1 kHz, 40 mV, 8 ohms) ................... 150 mV / 100 ohms Mono .................................................................. 2.0 µV (17.3 dBf)
Frequency Response / Stereo .................................................................. 25 µV (39.2 dBf)
CD, etc. to FRONT L/R (10 Hz to 100 kHz) .................. +0/-3.0dB Usable Sensitivity / (IHF)
RIAA Equalization Deviation / Mono .................................................................. 1.0 µV (11.2 dBf)
20 Hz to 20 kHz, PHONO (MM) ...................................... 0±0.5dB Selectivity /
Total Harmonic Distortion / (20Hz to 20kHz) at 400 kHz ............................................................................ 70 dB
PHONO (MM) to REC OUT (1V) ............................. 0.02% or less Signal to Noise Ratio / (IHF)
CD, etc. (STEREO) to FRONT L/R SP OUT (65W, 8 ohms) .. 0.04% or less Mono / Stereo .......................................................... 76 dB / 70 dB

8
RX-V2500/DSP-AX2500


Harmonic Distortion /




NO / YES
Decode Type DSP Level Init. Deley Room Ssize Liveness Sur. Init. Deley Sur. Room Size SB Init. Deley SB Room Size Rev. Time Rev. Deley Rev. Level Dialogue Lift Initialize
(1 kHz)




NO
NO
NO




NO




NO
NO
NO
NO
NO
NO
NO
NO




NO




NO
NO


NO
NO


NO



NO
NO



NO

NO




NO
NO

NO

NO

NO
Mono/Stereo ................................................................. 0.2 / 0.3 %
Stereo Separation / Manufactured under license from Dolby Laboratories.
1 kHz .................................................................................... 42 dB "Dolby", "Pro Logic", "Surround EX", and the double-D symbol are
trademarks of Dolby Laboratories.
Frequency Response /




-6 / +3 / 1 dB 1 / 99 / 1 ms 0.1 / 2.0 / 0.1 0 / 10 / 1 1 / 49 / 1 ms 0.1 / 2.0 / 0.1 1 / 49 / 1 ms 0.1 / 2.0 / 0.1 1.0 / 5.0 /0.1 ms 0 / 250 / 1 ms 0 / 100 / 1 % 0 / 5 / 1




)
(0)
(0)
(0)

(0)



(0)




(0)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
(0)



(0)

(0)
(0)
(0)

(0)
(0)
(0)

(0)
(0)
(0)

(0)
(0)
(0)
20 Hz to 15 kHz .......................................................... +0.5 / -2 dB
Antenna Input /
...................................................................... 75 ohms unbalanced

I AM Section /




70




4
2
9




4
-

-



-