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Yamaha AX-596 - Service Manual

Yamaha AX-596
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AX-596
SERVICE MANUAL
STEREO AMPLIFIER
AX-596
100717
CONTENTS
SPECIFICATIONS.......................................................... 1
TO SERVICE PERSONNEL .......................................... 2
IMPEDANCE SELECTOR ............................................. 2
REAR PANELS .............................................................. 3
INTERNAL VIEW ........................................................... 5
DISASSEMBLY PROCEDURES ................................... 5
ADJUSTMENTS ............................................................. 6
BLOCK DIAGRAM......................................................... 6
µ-COM DATA ................................................................. 7
PRINTED CIRCUIT BOARD .................................... 8~15
SCHEMATIC DIAGRAM ........................................ 16~17
PARTS LIST ........................................................... 18~27
REMOTE CONTROL TRANSMITTER ........................ 28
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 Products, are already
known and understood by the users, and have therefore not been restated.
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 or 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.
AX-596

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Questions and Answers

  • J
    Justin SmithAug 17, 2025
    What to do if my Yamaha AX-596 Amplifier cannot be turned on?
    • R
      Richard LloydAug 18, 2025
      If your Yamaha Amplifier won't turn on, check the following: * Ensure the power cord is fully plugged in. Firmly plug in the power cord. * Make sure the IMPEDANCE SELECTOR switch on the rear panel is set to either end. If it's not, set the switch to either end when the unit is off.
  • B
    Briana WallaceAug 20, 2025
    What to do if Yamaha Amplifier remote control does not work?
    • K
      Kimberly WilcoxAug 20, 2025
      If the remote control for your Yamaha Amplifier isn't working, try these solutions: * Replace the batteries with new ones if they are weak. * Ensure you are within the remote control's functional range (maximum 6 meters) and within 30 degrees off-axis from the front panel. * Reposition the main unit if direct sunlight or lighting is striking the remote control sensor.
  • A
    Alicia Griffin MDAug 22, 2025
    Why does my Yamaha AX-596 Amplifier have no sound?
    • M
      Mariah MorganAug 22, 2025
      If your Yamaha Amplifier is producing no sound, there could be several reasons: * The output cords might be incorrectly connected. Ensure that the cords are properly connected. If the problem continues, the cords may be defective. * The appropriate input source might not be selected. Use the INPUT selector to choose the correct source. * The SPEAKERS switches might not be set correctly. Make sure the corresponding SPEAKERS switch is in the ON position. * The speaker connections might not be secure. Check and secure all connections.
  • P
    Paul YoungAug 25, 2025
    What to do if my Yamaha AX-596 Amplifier sound suddenly goes off?
    • A
      Alexis RossAug 26, 2025
      If the sound from your Yamaha Amplifier suddenly cuts out, the protection circuit may have been activated due to a short circuit or other issue. Turn off the unit by pressing the POWER switch, and then turn it back on to reset the protection circuit.
  • D
    Dylan GibbsAug 27, 2025
    Why is there a lack of bass and no ambience on my Yamaha AX-596 Amplifier?
    • Z
      Zachary CookeAug 27, 2025
      If you're experiencing a lack of bass and ambience with your Yamaha Amplifier, it's possible that the + and – wires are connected in reverse at the amplifier or speakers. Ensure you connect the speaker wires in the correct phase (+ and –).
  • D
    Donald RobinsonAug 30, 2025
    What to do if Yamaha AX-596 does not work normally?
    • A
      ashleygarciaAug 30, 2025
      If your Yamaha Amplifier is not working normally, it may be due to strong external noise (lightning, excessive static electricity, etc.) or a misoperation. Turn off the unit by pressing the POWER switch. After about 30 seconds, turn it back on and try operating it again.
  • J
    Jacob ReynoldsSep 2, 2025
    Why is the sound degraded when listening with headphones on my Yamaha Amplifier?
    • M
      Melissa HudsonSep 2, 2025
      If the sound quality is degraded when using headphones connected to a compact disc player or tape deck with your Yamaha Amplifier, ensure that the unit is turned on. If it's off or in standby mode, turn on the power to the unit.
  • S
    Sandra RivasSep 4, 2025
    Why is the sound 'humming' on my Yamaha Amplifier?
    • A
      Angela KingSep 4, 2025
      If your Yamaha Amplifier is producing a humming sound, consider these potential causes: * Incorrect cord connections: Firmly connect the audio plugs. If the problem persists, the cords may be defective. * No connection from the turntable to the GND terminal: Make the GND connection between the turntable and the unit.
  • J
    James HamptonSep 6, 2025
    What to do if only one speaker produces sound on my Yamaha AX-596 Amplifier?
    • C
      Christina CalderonSep 6, 2025
      If only one speaker is working with your Yamaha Amplifier, check these: * Incorrect setting of the BALANCE control: Adjust the BALANCE control to the appropriate position. * Incorrect cord connections: Connect the cords properly. If the problem continues, the cords may be defective.
  • A
    anthony87Sep 9, 2025
    Why is the volume level low while playing a record on my Yamaha Amplifier?
    • J
      James EsparzaSep 9, 2025
      If the volume level is low when playing a record on your Yamaha Amplifier, it might be because the record is being played on a turntable with an MC cartridge. In this case, the turntable should be connected to the unit through the MC head amplifier.

Summary

SPECIFICATIONS

TO SERVICE PERSONNEL

Guidelines for service personnel, including critical component identification and leakage current testing.

IMPEDANCE SELECTOR

Details the function and warnings associated with the impedance selector switch on the unit.

REAR PANELS

Illustrations showing rear panel connections for various regional model versions.

INTERNAL VIEW

Diagram illustrating the internal layout and component placement within the amplifier.

DISASSEMBLY PROCEDURES

Step-by-step instructions for safely disassembling the amplifier unit for servicing.

ADJUSTMENTS

Procedures for confirming and adjusting the idling current of the amplifier.

BLOCK DIAGRAM

μ-COM DATA

PRINTED CIRCUIT BOARD

SCHEMATIC DIAGRAM

PARTS LIST

REMOTE CONTROL TRANSMITTER

Yamaha AX-596 Specifications

General IconGeneral
Signal to Noise Ratio110 dB (CD)
Dimensions435 x 151 x 387 mm
Damping Factor240 (8 ohms, 1kHz)
Input Sensitivity150mV (line)
OutputRec Out
Speaker Load Impedance4 ohms to 16 ohms
Frequency Response5Hz-100kHz (+0/-3dB)
Total Harmonic Distortion0.015% (8 ohms, 20Hz-20kHz)

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