Sony ta h 4900 service manual

Page 1

TA-H49llfl

SERVICE MANUAL

TA-H4900 is the Integrated stereo amplifier
section in MHC-4900/E80X

AEP Model

UK Model

E Model
Australian Model

Photo : AEP model

SPECIFICATIONS

Peak music power output (E. EA, MX. AUS, SP, MY model)

1000 walls, 69

Continuous RMS power output 60 + 60 walls (6 ohms at 1 kHz, DIN)

Music power output

70 + 70 walls (6 ohms at I kHz. 5% THD)
MO + 140 waits (6 ohms at lkHz. 10% THD)

Inputs MIX MIC (minijack):
sensitivity lmV, impedance 600 ohms
Outputs HEADPHONES (stereo minijack):
accepts headphones of 8 ohms or more
SURROUND SPEAKER (phono jack):
accepts impedance of 8 lo 16 ohms
Dimensions Approx 225 x l25 x 285 mm (w/h/d)
(8 7/8 x 5 x 11 1/4 inches)
Mass Approx. 43kg
(9 lb 8 02)
General
Desti- Power Power
nation requirements consumption
UK model 240 V AC, 160 W
50 Hz
AEP, G. IT 220 7 230 V 160W
model AC, 50/60Hz
E EA, MX, AUS, 110- I20Vor 220-240 VAC I60W
SP, MY model Adjustable 50/60 Hz

Design and specifications subject to change without notice

Note :

- G : German modeli
IT : Italian model.
EA : Saudi Arabia model.
MX : Mexican modeli
AUS : Ausualian model.
SP : Singapore model.

: Malaysia model

INTEGRATED STElllifl AMPLIFIER
ONY®

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- 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.