Yamaha DSP-A5 - User Manual

Yamaha DSP-A5

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Table of Contents:

  • Page 2 – BLOCK DIAGRAM
  • Page 3 – TO SERVICE PERSONNEL; Critical Components information; REMOTE CONTROL PANELS; R and T models
  • Page 4 – REAR PANELS
  • Page 5 – SPECIFICATIONS
  • Page 6 – Do not change the IMPEDANCE SELECTOR switch; Manufactured under license from Dolby Laboratories.
  • Page 7 – DISASSEMBLY PROCEDURES; Removal of Top Cover; POWER TRANSFORMER; INTERNAL VIEW; Front Panel
  • Page 8 – SELF DIAGNOSIS FUNCTION; PURPOSE AND OPERATION
  • Page 9 – BEGINNING AND CANCELLATION; (1) Starting up the function and the display; A. How to start diagnostic program; Using the front panel keys of the main unit; B. Settings for start-up of diagnostic program; FRONT PANEL
  • Page 10 – the Power will be switched OFF automatically.; CHK S U M : X X X X X
  • Page 11 – Selection by using the remote control unit; OPERATION AND DISPLAY WHEN STARTING DIAGNOSIS FUNCTION; Selection by using the front panel keys of the main unit; (2) Other functions available while diagnosis function is active; • SPEAKERS
  • Page 12 – CONTENTS OF DIAGNOSIS FUNCTION; : This shows that the device is not operating.; M A I N B Y P A S S; DAC
  • Page 13 – Y S S M
  • Page 14 – P R O C N T R : L R G
  • Page 15 – M A I N : L R G 0 d B
  • Page 16 – P R E S E T
  • Page 17 – Table 1; A D D A T A C H K; If K1 and K2 are more than
  • Page 18 – Indicate
  • Page 19 – UC; EXIT; No.11 EEPROM WRITING FUNCTION; Version
  • Page 20 – FACTORY PRESET; INPUT SELECTOR
  • Page 21 – Confirmation of Idling Current of Main Amplifier; AMP ADJUSTMENT; Cut off
  • Page 22 – IC DATA; TOP VIEW; MEMORY; REGISTER
  • Page 24 – Video Input
  • Page 31 – DISPLAY DATA; • GRID ASSIGNMENT; PATTERN AREA; NOTE; CONNECTION; SPORT; TV; V–AUX; SPEAKERS; AUTO; PS; R T
  • Page 33 – WER TRANSFORMER; PO; R and T models only; Semiconductor Location; Semiconductor Location
  • Page 35 – J only
  • Page 38 – FLASH
  • Page 41 – IC BLOCK
  • Page 42 – MAIN L; S VIDEO; PIN CONNECTION DIAGRAM OF DIODES, TRANSISTORS AND IC’s.
  • Page 43 – FRONT L
  • Page 45 – PARTS LIST; ELECTRICAL PARTS; ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS:
  • Page 55 – Chip Resistors; Parts List for Carbon Resistors; Value
  • Page 59 – REMOTE CONTROL TRANSMITTER; SCHEMATIC DIAGRAM; List of the Functional key; Key Arrangement
  • Page 62 – DIGITAL IN; INPUTS
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SERVICE MANUAL

IMPORTANT NOTICE

This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA
P r o d u c t s , a r e a l r e a d y k n o w n a n d u n d e r s t o o d b y t h e u s e r s , a n d h a v e t h e r e f o r e n o t b e e n r e s t a t e d .

WARNING:

Failure to follow appropriate service and safety procedures when servicing this product
may result in personal injury, destruction of expensive components, and failure of the
product to perform as specified. For these reasons, we advise all YAMAHA product
owners that any service required should be performed by an authorized YAMAHA
Retailer or the appointed service representative.

IMPORTANT:

The presentation or sale of this manual to any individual of firm does not constitute
authorization, certification or recognition of any applicable technical capabilities,
or establish a principle-agent relationship of any form.

The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research,
engineering, and service departments of YAMAHA are continually striving to improve YAMAHA products.
Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation
to retrofit. Should any discrepancy appear to exist, please contact the distributor's Service Division.

WARNING:

Static discharges can destroy expensive components. Discharge any static electricity
your body may have accumulated by grounding yourself to the ground buss in the unit
(heavy gauge black wires connect to this buss).

IMPORTANT:

Turn the unit OFF during disassembly and part replacement. Recheck all work before
you apply power to the unit.

1 0 0 7 1 2

AV AMPLIFIER

DSP-A5

TO SERVICE PERSONNEL ........................................... 1

REMOTE CONTROL PANELS ....................................... 1

REAR PANELS ............................................................... 2

SPECIFICATIONS ....................................................... 3~4

INTERNAL VIEW ............................................................ 5

DISASSEMBLY PROCEDURES .................................... 5

SELF DIAGNOSIS FUNCTION ................................ 6~17

FACTORY PRESET ...................................................... 18

■

CONTENTS

AMP ADJUSTMENT ..................................................... 19

IC DATA .................................................................. 20~28

DISPLAY DATA ........................................................... 29

BLOCK DIAGRAM .................................................. 30~31

PRINTED CIRCUIT BOARD ................................... 32~47

SCHEMATIC DIAGRAM ......................................... 48~53

PARTS LIST ............................................................ 54~69

REMOTE CONTROL TRANSMITTER ......................... 70

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Summary

Page 2 - BLOCK DIAGRAM

DSP-A5 E-30/J-28 E-31/J-29 ■ BLOCK DIAGRAM 10 11 21 20 6-CH SELECTOR IC102 26 25 27 6 5 4 8 9 7 22 23 24 OPERATION KEY SW503-510 43 93 28 19 64 21 12 20 16 63 99 46 RESET Q503,D502 POWER DOWN DETECT Q504,D510,511 BACK-UP (MEMORY) IC502 D512 REGULATOR Q802, D803 1 2 64 65 43 22 ~ 61 46 ~ U501 /ST SCK...

Page 3 - TO SERVICE PERSONNEL; Critical Components information; REMOTE CONTROL PANELS; R and T models

1 DSP-A5 ■ TO SERVICE PERSONNEL 1. Critical Components information Components having special characteristics are marked ! and must be replaced with parts having specifications equal to those originallyinstalled. 2. Leakage Current Measurement (For 120V Model only) When service has been completed, it...

Page 4 - REAR PANELS

2 DSP-A5 ▼ T model ▼ B model ▼ G model ▼ R model ■ REAR PANELS

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