Yamaha ax 700 u

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STEREO INTEGRATED AMPLIFIER

1 AX-700 /AX-700U

IMPORTANT NOTICE

This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. Ithas been
assumed that basic service procedures inherant 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 iniury, destruction of expensive components and failure of the product to perform as
specified. For these reasons, we advise all Yamaha product owners that all service required should
be performed by an anthorized Yamaha Retailer or the appointed service representative

IMPORTANT: The presentation or sale of this manual to any individual or firm does notconstiture authorization,
certification. recognition of any applicable technical capabilities, or establish a principleagent
relationship of any form

The data provided is believed to be accurate and applicable to the unitis) indicated on the coverc The research,
engineering, and service departments of Yamaha are continually striving to improve Yamaha products. Modifica-
tions are, therefore, inevitable and specifications are subiect 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 gangs black
r wires connect to this buss).

IMPORTANT: Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply

power to the unit

I CONTENTS

TO SERVICE PERSONNEL...,..... .. I ADJUSTMENTS .......... 5
FRONTPANELS . 1 BLOCKDIAGRAM.................. ..6
REARPANELS. . 2 WIRING.... ........ 7
SPECIFICATIONS . ...... 3 PRINTED CIRCUIT BOARD .......... .. 8~11
INTERNALVIEW ...... .4 SCHEMATICDIAGRAM...... ...........12
DISASSEMBLY PROCEDURES............. 4 PARTS LIST ...... . ..........13~20

SINCE 1887

YAMAHA

NlPPON GAKKI CDTK LTD. HAMAMATSU, JAPAN
3.3K-362 @ 6) Printed in Japan 87.3

nOOL/OOL'XV

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AX-700/700U

I TO SERVICE PERSONNEL

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l
1. Critical Components Information.
Components having special characteristics are marked
and must be replaced wlth parts having specifications aqual
to those originally installed.

____i

- T AC LEAKAGE TESTER
2. Leakage Current Measurement (For 120V Model Onlv). $32,352 on EQUIVALENT
Whefn sag/ice has been corripleted, it is imperative that you
veri y t at all exposed conductive surfaces are properly
insulated from supply circuits. ® D-
l
l 0 Meter impedance should be equivalent to 1500 ohm shunted
bv 0.15MF. WALL 3:: -_-
OUTLET INSULATING TABLE
I Leakage current must not exceed 0.5mA.
0 Be sure to test for leakage with the AC plug in both polarities.
o POLARIZATION
This tuner product is equipped with a polarized alternating-
current line plug (a plug having one blade wider than the
other). This plug will fit into the power outlet only one way.
This is a safety feature. (u.c model only)
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