Yamaha xp1000, xp2500, xp3500 free download

File name Yamaha XP1000-2500-3500 p1-25.pdf

POWER AMPLIFIER SERVICE MANUAL XP3500 XP2500 XP1000 s CONTENTS SPECIFICATION 3 DIMENSIONS 5 PERFORMANCE GRAPHS 5 PANEL LAYOUT 6 CIRCUIT BOARD LAYOUT 7 WIRING 9 DISASSEMBLY PROCEDURE 10 IC BLOCK DIAGRAM 16 CIRCUIT BOARDS 16 INSPECTIONS 26/31 BLOCK DIAGRAM OVERALL CIRCUIT DIAGRAM PARTS LIST XP1000: 200512-134400 PA 011814 XP2500: 200512-176400 XP3500: 200512-207900 Copyright (c) Yamaha Corporation. All rights reserved. M I '06.02 XP1000/XP2500/XP3500 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 all 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

File name Yamaha XP1000-2500-3500 p26-57.pdf

XP1000/XP2500/XP3500 s INSPECTION Scope This inspection specifications is applied to the power amplifier XP1000/XP2500/XP3500. 1. Power Source/Frequency Destination Voltage Frequency U, T 120 V +2 % -0 60 Hz H, B, K, O 230 V +2 % -0 50 Hz A 240 V +2 % -0 50 Hz 2. Preparation for STEREO/PARALLEL mode Attenuator "0"(MAX) (Both Channel) Input terminal cannon type connector: 2PIN-HOT/3PIN-COLD/1PIN-GND MODE switch STEREO GAIN switch 32dB HPF switch OFF (Both Cannel) Load resistor 8 +/- 1% Unless otherwise specified, the operation shall be both channels drive. Unless ohterwise specified, the input signal shall be high quality sine wave. 3. Inspection and Adjustment 3. 1 POWER LED, PROTECTION LED and Power on muting time POWER LED and PROTECTION LED shall light when the POWER switch is turned on. 2.5 +/- 1 seconds after the power switch is turned on, PROTECTION LED shall lights off. 3. 2 Fan and TEMP LED The fan shall operate when short circuit on the two jumper wires that mounted of DC circuit board marked "FAN-C". The TEMP LED shall lights up when short circuit on the two jumper wires that marked "TM-C". 3. 3 Idle current Connect the input terminal to the GROUND and adjust VR101(channel A) and VR102(channel B) on the PA UNIT so that the DC voltage of Vb between the pin1 and pin2 of CN108(channel A) and the CN107(channel B) shall be 0.5 +/- 0.1mV. After finishing all inspections, adjust the Vb again to 0.5 +/- 0.1mV. 3. 4 DC Voltage of output terminal Connect the input terminal to the GROUND and measure the DC voltage Vdc of the output terminal shall be 0 +/- 75mV. 3. 5 Gain 3. 5. 1 Nominal Gain The output voltage should be +22.0 +/- 0.5dBu when input signal is 1kHz, -10.0dBu. 3. 5. 2 GAIN switch Set the Gain SW to 26dB. With 1kHz -10dBu input signal, the output voltage shall be +16.0 +/- 0.5dBu. Set the GAIN switch to +4dBu. With 1kHz -10dBu input, the output voltage shall be as following table. XP1000 XP2500 XP3500 +17.2 dBu +21.2 dBu +22.7 dBu +/-0.5 dBu +/-0.5 dBu +/-0.5 dBu 3. 5. 3 Attenuator Set the input attenuator to -10dB. With 1kHz -10dBu input signal, the output voltage shall be