Yamaha xh200 power amp service manual

Page 1

2 XH200 WARNING Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. 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 under- stood 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 per- sonal 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 : This presentation or sale of this manual to any individual or firm does not constitute authorization certifi- cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form. The data provided is belived 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 changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributorÕs Service Division. WARNING : Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus.) IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit. WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. IMPORTANT NOTICE FOR THE UNITED KINGDOM Connecting the Plug and Cord WARNING: THIS APPARATUS MUST BE EARTHED IMPORTANT. The wires in this mains lead are coloured in accordance with the following code: GREEN-AND-YELLOW : EARTH BLUE : NEUTRAL BROWN : LIVE As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug proceed as follows: The wire which is coloured GREEN-and-YELLOW must be connected to the terminal in the plug which is marked by the letter E or by the safety earth symbol or colored GREEN or GREEN-and-YELLOW. The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK. The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED. ¹w æ ¼xz-� ¶-�¡ËbhŠt OAs æ ¼pb{¦õb �-ùxz-� ¶whŠt žc¦w æ ¼-�]-�;X5à4Ð'°

Page 2

XH200 3 SPECIFICATIONS 0 dBu=0.775 Vrms, Half Power=1/2 Output Power (3 dB below rated power) Output Power40 Hz -� 20 kHz THD+N= 0.1 % 70 V, RL=25 ½ MIN200 W x 2 100 V, RL=50 ½200 W x 2 Power Consumption Standby5 W Idle 40 W 1/8 (4 ½/Pink noise) 400 W THD+N40 Hz -� 20 kHz, Half Power MAX 0.1 % Intermodulation Distortion60 Hz:7 kHz, 4:1, Half Power MAX 0.1 % Frequency ResponsePo=1 W, HPF=40 Hz, 80 Hz -� 20 kHzMAX 0 dB TYP 0 dB MIN -�0.5 dB SN Ratio(DIN AUDIO) MIN 103 dB Channel SeparationHalf Power, 1 kHz, Att. max, input 600 ½ shunt MIN 60 dB Residual Noise Att. min, (DIN AUDIO) MAX -�65 dBu Input Sensitivity Att. max TYP +4 dBu Voltage Gain Att. max TYP 38 dB (100 V), 35 dB (70 V) Maximum Input VoltageMIN +22 dBu Input ImpedanceTYP 20 k½ (balanced), 10 k½ (unbalanced) ControlsFront Panel POWER switch (push on/push off) attenuator (31 position) x 2 Rear Panel OUTPUT VOLTAGE switch (100 V/70 V) x 1 HPF switch (40 Hz/80 Hz 12 dB/oct) x 2 ConnectorsINPUT Euroblock connector (balanced) /ch SPEAKERS Barrier strip/ch MONITOR/REMOTE Dsub 15P x 1 IndicatorsPOWER/STANDBY x 1 (Green/Orange) SIGNAL x 2 (Green) CLIP/LIMIT x 2 (Red) PROTECT/MUTE x 1 (Red) Load Protection POWER switch on/off mute DC-fault: output relay off/restored automatically. Clip limiting : THD ³ 0.5 % Amplifier ProtectionThermal: Cuts the output (when heatsink temp. ³ 90 ¡C); operation restored automatically. VI limiter (RL ² 16 ½): Limits the output. Power Supply ProtectionThermal: Power supply shutdown (when temp. ³ 90 ¡C); operation not restored automatically. CoolingVariable-speed fan x 1 Dimensions (W x H x D)480 x 88 x 412 mm Weight9.8 kg Included AccessoriesPower cord, Security cover, Owner's Manual, 3-pin Euroblock connector x 2 ¢ ïù7£