Yamaha ax 380
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Page 1
STEREO AMPLIFIER
r
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, ere already known Ind undemnod by the users. and hive therefore not been restated.
WARNING: Failure to follow Appropriate service end safety procedures when servicing this product
my result in personal injury. destruction of expensive components. and failure of the
product to perform as specified For these reasons. we advite 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 individuul or firm does not constitute
militarization. certification or recognirion of my applicable rechnicrl capabilities. or
establish a principleagent relationship of my form
The data provided is believed to be accurate and applicable to the urrit.(r) indicated on the cover. The reserch,
engineering, and service departments of YAMAHA are continually striving to improve YAMAHA products.
Modifications are. therefore, ineviuble and specifications ere subject to change without notice or obligation to
retrofit. Should any discrepency Ippelr to exist. please contact the distributor: Service Division.
WARNING: Static discharges cm 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 wire: connect to this buss).
IMPORTANT: Tum the unit OFF during disasternbly and part replacement. Recheck all work belcre you
IMPORTANT NOTICE \
\ apply power to the unit. j
I CONTENTS
TO SERVICE PERSONNEL ........................................ 1 n-COM DATA ............................................
REAR PANELS ..... PRINTED CIRCUIT BOARD.
SPECIFICATIONS IC BLOCK ...........................
BLOCK DIAGRAM
INTERNAL VIEW .. .
DISASSEMBLV PROCEDURES ................................ 4
1
.2
.3
4
SCHEMATIC DIAGRAM .
PARTS LIST .................
REMOTE CONTROL TRANSMITTER ......
L-
YA
VAMAHA CORPORATION
P.O.Box1,Hamamaisu.Jquan
1t85K-713 fl GO Printed in Japan 94.4
OSS'XV
Page 2
AX-380
I TO SERVICE PERSONNEL
1. Critical Components Information. AC LEAKAGE
Components havlng special characteristics are marked and WALL EQUIPMENT TESTER OH
must be replaced with parts having specifications equal to OUTLET UNDER TEST EQUIVALENT
those originally Installed.
{DED-
J;
INSU LATING
TABLE
I REAR PANELS
V R model
61) fi)
--va-
0 z - - I: o 0-0
flak-E:
V A, 8 models
B model
GED
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V H, W models w model