Yamaha dsp ax3800

Page 1

AV RECEIVER/AV AMPLIFIER

RX-V3800 DSP-AX3800

SERVICE MANUAL

/

IMPORTANT NOTICE

This manual has been provided for the use of authorized YAMAHA Retailers and their serVice personnel.
It has been assumed thar basic service procedures inherent to the industry, and more specifimlly YAMAHA Products, are already
known and understood by the users, and have therefore not been restated.

WARNING: Failure to follow appropriate service and injury, destniction 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.

IM PORTANT: The presentation or sale of this manual to any individual or him doesnot constitute authorization, certification or
recognition ofany applimble technical mpabilities, or establish a principle-agent relationship of any form.

The data provided is believed to be accurate and applimble to the unitts) indimted on the cover. The research, engineering, and
service departments of YAMAHA are continually striving to improve YAMAHA products Modification: 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 Servtce 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).
IM PORTANT: Turn the unit OFF during disassembly and partreplacement. Recheck all work before you apply power to the unit.

I CONTENTS

TO SERVICE PERSONNEL

FRONT PANELS ............. 3
REAR PANELS .......................................................... 4-6
REMOTE CONTROL PANELS 7
SPECIFICATIONS I §%tiii. 8-11
INTERNAL VIEW ................. 12
DISASSEMBLY PROCEDURES I 9mm: .......... 12-13
UPDATING FIRMWARE /

77*A'7170Eé35r7; ..................................... 18-31
SELF-DIAGNOSTIC FUNCTION /

5M 77 (a anfififim ..................................... 32-68

:mv-Exvzaww. lav-aitmistitfllfibtutr.
This Sen/1w Manual uses recycled paper,

101064

@1307 mm All righlS reserved
This manual l5 copyrighted by YAMAHA and may not be copied or
redistributed either in print or elecronically WIIhOLI permission

AMP ADJUSTMENT / 7>7°§B§I3I¥.

.70

DISPLAY DATA ..............................

IC DATA ................................................................. 71-86
BLOCK DIAGRAMS ............... . 87-90
PIN CONNECTION DIAGRAMS 91-93
PRINTED CIRCUIT BOARDS... 94-122
SCHEMATIC DIAGRAMS ....... 123-143
REPLACEMENT PARTS LIST 145-182
REMOTE CONTROL ............... 183-186

ADVANCED SETUP]
7k/t>1 b-lzy b7y7°X:1-é%?é ..... 137-139

YAMAHA

YAMAHA CORPORKI'DN
P.O.Box 1, Hamamatsu, Japan

[07.09

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Page 2

RX-V3800IDSP-AX3800

I TO SERVICE PERSONNEL

WALL EQUIPMENT AI'EIS-TERACSTRE
1 gfifififlmfig Iggrgaialtiglrlaracteristics are marked A OUTLET UNDER TEST EQUIVALENT
fonghr;st)::i;eafiff:gav|v|::Pans havmg specifications equal ® :D-
2. Leakage Current Measurement (For .120V Models Only) . ;
IVE?2.$11229?liiilfiéeméliiiégs"a'Te'rEIEQZ'JIVfinZuISILZ iNsTu/flm

from supply circuits.

0 Meter impedance should be equivalent to 1500 ohms shunted
by 0.15ILF.

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

For U model
A CAUTION
F1,F2, FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE
10A, 125V FUSE."

\ g For C model

éfi CAUTION

g: F1, F2: REPLACE WITH SAME TYPE 10A, 125v FUSE.
EE ATTENTION

F1, F2: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 10A, 125V.

WARNING: CHEMICAL CONTENT NOTICE!

The solder used in the production ofthis 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 WHAT SO EVER!

Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solderfumes 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 fifififl > 5" [COL 1'

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

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

~ Sn + Ag + Cu (tin + silver + copper)
. Sn e Cu (tin + copper)
. Sn v Zn + Bi (tin ¢ zinc + bismuth)

Caution:
As the melting point temperature of the lead free solder is
about 30"C to 40°C (SOQF to 709F) higher than that ofthe lead
solder, be sure to use a soldering iron suitable to each solder.

7EI§lCI§$Q*fl'CU%>§"\°-C®§IEZB$UI \jfiifljlldiéfifi
fifiigfifih M157?) \JSHijdfl?b\%§o

fittEGMJSlCIELKDbdfiifinfibi?b\ EEFIICIEFFEEU)
Jiflfifiu JIU§®IERQ7EIE£D§3U

~ Sn+Ag+Cu(fi+$E+-flfi)
. Sn+Cu<$§+§fi>
- Sn+Zn+Bi(§+fi§fi+-EX?X)

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