Yamaha as 2100

Page 1

INTEGRATED AMPLIFIER

A-SZ1OO

SERV CE MANUAL

IMPORTANT NOTICE

This inauual has been provided {or the use of authorized Yamaha Retailers and their service personnel.
it has been assumed that ba . servrce procedures inherent to the industry. and more specifically Yamaha ImdllclS, are already ltnown
and understood by the users. and have theretore not been restated,

WARNING: Failure to follow appropriate service and safety procedures when servicing this product may tesiilt in personal injury
destruction Of expensive corriponents. and failure of the product to perform as specified. For these reasons. we advise
all Yamaha ptodiict owners that any service required should he performed by air authorized Yarriaha Retailer or the
appointed service representative,

IMPORTANT: The presentation or sale ot this manual to any individual or fitiu does not constitute authorization. certification or
recognition of any applicable technical capabilities. or establish a pI'lncipIeragem relationship of any form

The data provided is believed to be accurate and applicable to the |lnI[(S) rndicated ou the cover. The research. engineering, and service

departments of Yamaha are continually strivrng to improve Yamaha products. Modifications are. therefore. inevitable and specifications

are subject to chairge without notice or oblrgation to retrofit. Should any discrepancy appear to exist. please contact the disll'iblllors

Service Division.

WARNING: static drsclrarges can destroy expensive components Discharge any static electricity your body may have
accumulated by grounding yourselfto the ground buss in the unit (heavy gauge black wires connect to this buss).

IMPORTANT: Turn the unit OFF during drsassemhly and part replacement Reclreck all work before you apply power to the unrt.

I CONTENTS

TO SERVICE PERSONNEL ............................................ 2 AMPLIFIER ADJUSTMENT/ 7";ij ............... 41-43
FRONT PANELS ............................................................. 3 3 DATA ---------------- 44-49
REAR PANELS ........................................................... 4-6 BLOCK DIAGRAMS 50-51
REMOTE CONTROL PANEL .......................................... 7 WIRING DIAGRAMS - 52-53
SPECIFICATIONS l%%1ߤ 7-8 PRINTED CIRCUIT BOARDS 54-73
INTERNAL VIEW _ 9 PIN CONNECTION DIAGRAMS ................................... 74
SERVICE PRECAUTIONS / fi-Ezfiafiifégxfi 10 SCHEMATIC DIAGRAMS ....................................... 75-83
DISASSEMBLY PROCEDURES / 53%;; IIIIIIIIIII 11_23 REPLACEMENT PARTS LIST .............................. 85-112
UPDATING FIRMWARE] REMOTE CONTROL ................................................... 113

77-A-717'07'v7P-h ............................ 24-28
SELF-DIAGNOSTIC FUNCTION I
GM 7' 7 (a EEQEfiwsfi) ..................................... 29-40

YAMAHA

YAMAHA CORPORATION

P.O.Box 1, Hamamatsu, Japan
14.07

101303

OOLZS'V

Page 2

A-SZ100

A-52100

I TO SERVICE PERSONNEL

1. Critical Components lntormatlon
Components having special characteristics are marked A 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 0.15 uF.

For U model
EB CAUTION
LALv
FUSE."
For C model
CAUTION

F1: REPLACE WITH SAME TYPE 10A, 125V FUSE.

ATTENTION

AC LEAKAGE
WALL EQUIPMENT TESTER OR
OUTLET UNDER TEST EQUIVALENT

J:

INSULATING
TABLE

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

F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 10A, 125V

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

WARNING: CHEMICAL CONTENT NOTICE!

This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive

harm.

DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON

WHATSOEVER!

Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or

expose eyes to solder/flux vapor!

It 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 l fifial \yfiIZ'DLVC

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

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

0 Sn + Ag + Cu (tin + Silver + copper)

0 Sn + Cu (tin + copper)

0 Sn + Zn + Bi (tin + Zinc + bismuth)

Caution:
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.

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- Sn+Cu (fi 4313])

- Sn+Zn+Bi ($5 + ea; + 8X71)
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