Yamaha ta30 60 120 sm1

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CONTENTS

INTRODUCTION -----------------------------------------------------------------------------------

CHAPTER 1. DESCRIPTIONS OF TA-30, TA-60 & TA-120 AMPLIFIERS

1-1 OUTSTANDING FEATURES ------------------------------------------

1-2 OUTLINE OF CIRCUITS OF YAMAHA AMPLIFIERS

1-3 HOW TO OPERATE YAMAHA AMPLIFIERS ---------------
CHAPTER 2. SPECIFICATIONS ---------------------------------------------------------
CHAPTER 3. BLOCK DIAGRAM -------------------------------------
CHAPTER 4. PRINCIPLES OF OPERATION ---------------------------------------

4-1 INPUT TERMINALS -----------------------------------------------------
4-2 PREAMPLIFIER BLOCK ------------------------------------------------
4--3 TONE CONTROL CIRCUIT ------------------------------------------
4-4 MAIN AMPLIFIER BLOCK ------------------------------------------
4-5 POWER SUPPLY CIRCUIT -----------------------------------------
CHAPTER 5. TROUBLE SHOOTING ---------------------------------------------------

CHAPTER 6. DRAWINGS,PA SHEETS,MA SHEETS

& CIRCUIT DIAGRAMS ----------------------

CHAPTER 7. PARTS LIST ---------------------------------------------------------------

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INTRODUCTION:

The amplifier is an instrument which reproduces sound through speakers by amplifying feeble
electric signals which come from electric musical instruments, such as electric guitars, combo
organs, electric accordions, etc. The sound we get from such an electric musical instrument
itself is too small in volume to serve as a solo instrument when it is used in a jazz band, etc.
It is the amplifier that amplifies the small sound electrically so as to be large enough, to

match with the sounds of other instruments.

There are a number of varieties in the form of bands and the style of performance of music,
which require as many varieties in the output power, the tone color and the tone quality of the
amplifiers. An individual player also has his own preference about these points. In this sense.

it can be said that the amplifier is a musical instrument, rather than a mere amplifier.

Yamaha Amplifier Models TA-BO. TA-60 and TA-120 which we are going to introduce to
you are revolutionary new amplifiers with many outstanding features. The flat speakers
incorporated have been developed by our technical staff, leaders in the development of the
world's finest musical instruments. They have been designed specially for use with musical
instruments and are highly efficient in reproducing natural sound or live sound with no
distortion. The fully transistorized amplifier of high performance, the powerful and durable
magnet used for the speaker, both of which have been developed by Yamaha, are outstanding

features of Yamaha amplifiers.

Clear treble, powerful bass and rich tone color which expand equally in all directions, the
fresh style, and the portablity resulting from smaller size and lighter weight, we believe, will

be sure to give the fullest satisfaction to the users of Yamaha amplifiers.