Sony ta 1144 service manual

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Set using ISO screws

For Service Manuais Contact
MAURITRON TECHNICAL SERVICE3
8 Cherry Tma Rd, Chinnor
Oxon 0X9 4QY
Tet- 013444351694 Fax:- 01844652554
Email:- enquiries@mauritron.cu.lk

SERVICE MANUAL ,.

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TABLE OF CONTENTS

Page
SECTION 1 TECHNICAL DESCRIPTION
1-1. Technical Specifications ..................................................... 1
1-2. Detailed Circuit Analysis
1-3. Block Diagram ...................
1-4. Level Diagram ..................................................................... 7

SECTION 2 DISASSEMBLY AND REPLACEMENT PROCEDURES
2-1. Tools Required ................................................................... 8
2-21 Hardware Identification Guide i
2~3, Top Cover Removal
2-4. Front Panel Removal
25. Rear Panel Removal
2-6, Pilot Lamp Replacement
2-7. Control and Switch Replacement
2-8. Power Transistor Replacement
2-9. Replacement of Components Secured
to the Rear Panel by Rivets
2-10. Chassis Layout

SECTION 3 ADJUSTMENT
3-1. Dc Bias Adjustment .....
3-2 Ac Balance Adjustment

SECTION 4 REPACKING ...................................................................... 15
SECTION 5 DIAGRAMS
5-1. Mounting Diagram A Protection Circuit Board -- ........... 17
5-2 Mounting Diagram ~ Speaker, Loudness Switch Board -..i 18
5-3, Mounting Diagram - Filter, Monitor Switch Board - ....... l9
1 5-4 Mounting Diagram - Preamplifier Section - .. 19 ~ 21 -
55, Mounting Diagram 7 Power Amplifier -- . 22~ 23 {1
5-6. Mounting Diagram - Tone Control Switch ~ ....... 24

25~26

I 5-7, Schematic Diagram
SECTION 6 EXPLODED VIEW ..................................................... 27~29

SECTION 7 ELECTRICAL PARTS LIST ' ....................................... 30~32