Sony ta h 4900 service manual

Page 2

- MODEL IDENTIFICATION -
(Specification Label)

SONY, MODEL NO. TA-H4900
lNTEGRATED STEREO AMPLIFIER

l// A

AEP model : AC : 220 - 230V ~ 50/60Hz 160W

G, IT model : AC : 220 - 230V ~ 50H: 160W

UK model : AC : 240V ~ 50Hz

E, EA, MX, AUS, SP, MY model :AC : 110 -120V/220 -24OV ~
50/60Hz 150W

Note :

- G : German model.
IT '. Italian model.
EA : Saudi Arabia model.
MX : Mexican model.
AUS : Australian model.
SP : Singapore model.
MY : Malaysia model.

SERVICE NOTE

- Power Supply Used in Servicing
This unit have its own power supply as it works on the power
supplied from the equalizer (SEQ-H4900) used for this series,
connect this amplifier when servicing the unit (conduction repair,
eta).

TABLE OF CONTENTS

Sggtign Title Base
1. GENERAL ............................................................... 3

2 DIAGRAMS
2-1. Circuit Boards Location......
22. Semiconductor Lead Layouts
2-3t Block Diagram ........
2-4. Printed Wiring Board ..
2~5. Schematic Diagram .
2-6. IC Block Diagrams ............................................................ 1
2-1 IC Pin Functions

- IO501 Controller (MC68HCOSP9-SC405679B) 2O

3. EXPLODED VIEW
3-1. Front Panel and Rear Panel Section r.
3-2. Chassis section .

4. ELECTRICAL PARTS LIST ................................... 23

SAFETY-RELATED COMPONENT WARNING I!

COMPONENTS IDENTIFIED BY MARK A OR DOTTED

LINE WITH MARK A ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE

OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.