Sony BKPF-L752 Manual Structure

3 (E)

BKPF-L752

Purpose of this manual This manual is the maintenance manual of Audio D/A Converter Board

BKPF-L752.

This manual is intended for use by trained system and service engineers, and

describes the information for periodic maintenance and detailed service.

Contents This manual is organized by following sections.

Section 1 Service Overview

This section explains the notes on repair parts and IC link replacement.

Section 2 Electrical Alignment

This section explains the adjustment after replacing part.

Section 3 Spare Parts

This section describes the spare parts.

Section 4 Semiconductor Pin Assignments

This section describes the pin assignments of semiconductor.

Section 5 Block Diagram

This section describes the overall block diagram.

Section 6 Schematic Diagrams

This section describes the schematic diagrams of the DAC-38 and CN-1858/1859

boards.

Section 7 Board Layout

This section describes the board layout for the DAC-38 board.

Related manuals The following manual is prepared for this unit.

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.Installation Manual (Supplied with BKPF-L752)

This manual describes the information on BKPF-L752 installing.

Manual Structure

Contents

Main Page Table of Contents Page Manual Structure Purpose of this manual Contents Related manuals Page Section 1 Service Overview 1-2. IC Link Replacement 1-1. Notes on Repair Parts 1-2 (E) 1-3. Name and Function of Switch/Indicator/etc. Switches/gain adjusting VRs (Factory default settings are indicated by a \\ \\ \ mark) Indicators 2-1 (E) Section 2 Electrical Alignment 2-1. Electrical Alignment Overview 2-1-1. Required Equipment and Tools Use the equipment listed below or the equivalent. 2-1-2. Connection 2-2. Preparation for Adjustment 2-3. Power Supply Voltage Adjustment 2-4. Input/Output Gain Adjustment Page Section 3 Spare Parts Page Page Page 4-1 Section 4 Semiconductor Pin Assignments Index 4-2 DIODE Diode, LED, Transistor LED TRANSISTOR 4-3 IC C0 B A 4-4 TL082CPS-E20 (TI) TL082M (RAYTHEON) ZERO RST CS 4-5 SSM-2142P (PMI) PCF8574AT (PHILIPS) TL7705ACPS (TI) TL7705ACPSR I * OPEN COLLECTOR Page 5-1 OVERALL POWER DAC-38 Section 5 Block Diagram CN-1858 OVERALL CN-1859 Page 6-1 BKPF-L752 6-1 Section 6 Schematic Diagrams Index CN-1858/1859 CN-1858 BOARD NO. 1-674-283-11 DAC-38 (1/5) DAC-38 (1/5)DAC-38 (1/5) 6-3 SSM-2142P IC201 DAC-38 (2/5) DAC-38 (2/5)DAC-38 (2/5) 6-4 SSM-2142P IC402 DAC-38 (3/5) DAC-38 (3/5)DAC-38 (3/5) 6-5 PCF8574AT IC606(2/5) DAC-38 (4/5) DAC-38 (4/5)DAC-38 (4/5) BOARD NO. 1-674-129-11 IC601 IC608 DAC-38 (5/5) DAC-38 (5/5)DAC-38 (5/5) TP1 RV1:+5V-A ADJ. 1 Section 7 Board Layout DAC-38