Yamaha DSP-A595a - User Manual

Yamaha DSP-A595a

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Table of Contents:

  • Page 2 – TO SERVICE PERSONNEL; Meter impedance should be equivalent to 1500 ohm shunted by 0.15; REMOTE CONTROL PANELS; R and T models
  • Page 3 – REAR PANELS
  • Page 4 – SPECIFICATIONS
  • Page 5 – DIMENSIONS; WARNING; Do not change the IMPEDANCE SELECTOR switch; IMPEDANCE SELECTOR
  • Page 6 – DISASSEMBLY PROCEDURES; Removal of Top Cover; POWER TRANSFORMER; INTERNAL VIEW; Front Panel; J K
  • Page 7 – SELF DIAGNOSIS FUNCTION; PURPOSE AND OPERATION
  • Page 8 – 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 9 – History of protection function; Appears when the protection function has not been activated.; FL display at start-up of diagnostic program; the Power will be switched OFF automatically.; NO PROTECT
  • Page 10 – Selection by using the remote control unit; OPERATION AND DISPLAY WHEN STARTING DIAGNOSIS FUNCTION; (2) Other functions available while diagnosis function is active; • All “SPEAKERS”; Selection by using the front panel keys; DS
  • Page 11 – CONTENTS OF DIAGNOSIS FUNCTION; The MAIN L/R signals bypass the analog circuits to be output.; DSP 0DB
  • Page 12 – : This shows that the device is not operating.; DSP FULL
  • Page 13 – EFFECT OFF; b i t 0
  • Page 14 – F R O N T M I X
  • Page 16 – A D D A T A C H K
  • Page 17 – No.10 STATUS FROM DSP MICOM; [STATUS 1] IEC958 channel status bits 00-31 available from DIR2; Indicate
  • Page 18 – EXIT
  • Page 19 – FACTORY PRESET; EFFECT LEVEL
  • Page 20 – Confirmation of Idling Current of Main Amplifier; AMP ADJUSTMENT; Cut off
  • Page 21 – bit Main; IC DATA; TOP VIEW
  • Page 24 – bit Sub
  • Page 26 – Digital Format Interface Receiver
  • Page 31 – DISPLAY DATA; • GRID ASSIGNMENT; PATTERN AREA; CONNECTION
  • Page 32 – BLOCK DIAGRAM
  • Page 33 – Semiconductor Location; Point; Point
  • Page 35 – WER; WER
  • Page 37 – • Except J model
  • Page 40 – Video Switch; VIDEO SELECTOR
  • Page 41 – PIN CONNECTION DIAGRAM OF DIODES, TRANSISTORS AND IC’s.
  • Page 42 – REAR L
  • Page 43 – MAIN L; CONTROL
  • Page 44 – Dual OP AMP; FRONT L
  • Page 45 – PARTS LIST; ELECTRICAL PARTS; ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS:
  • Page 55 – Chip Resistors
  • Page 56 – EXPLODED VIEW; B model
  • Page 57 – MECHANICAL PARTS
  • Page 58 – REMOTE CONTROL TRANSMITTER; SCHEMATIC DIAGRAM; List of the fixed code; • R and T models; Parts List for; Value
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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 6 7 8

AV AMPLIFIER

DSP-A595a

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 .................................................................. 20~30

DISPLAY DATA ........................................................... 31

BLOCK DIAGRAM .................................................. 32~33

PRINTED CIRCUIT BOARD ................................... 34~47

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

PARTS LIST ............................................................ 54~67

REMOTE CONTROL TRANSMITTER ......................... 68

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Summary

Page 2 - TO SERVICE PERSONNEL; Meter impedance should be equivalent to 1500 ohm shunted by 0.15; REMOTE CONTROL PANELS; R and T models

1 DSP-A595a ■ TO SERVICE PERSONNEL 1. Critical Components information. Components having special characteristics are marked and must bereplaced with parts having specifications equal to those originallyinstalled. 2. Leakage Current Measurement (For 120V Model only). When service has been completed, ...

Page 3 - REAR PANELS

2 DSP-A595a ▼ T model ▼ B model ▼ G model ▼ R model ■ REAR PANELS

Page 4 - SPECIFICATIONS

3 DSP-A595a ■ SPECIFICATIONS ■ AUDIO SECTION Minimum RMS Output Power Per Channel (Power Amp. Section) MAIN L/R, REAR L/R 20Hz to 20kHz, 0.04% THD, 8 Ω 65W+65W 1kHz, 0.07% THD, 8 Ω 80W+80W CENTER 20Hz to 20kHz, 0.04% THD, 8 Ω 65W 1kHz, 0.07% THD, 8 Ω 80W Maximum Power (EIAJ) R, T models only MAIN L/...

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