Teac A1D free download

File name Teac-A1D amp.pdf

SERVICE MANUAL A- 1 D Integrated Stereo Amplifier CONTENTS 1 SPECIFICATIONS 2 2 ADJUSTMENTS 3 3 EXPLODED VIEWS AND PARTS LIST 4 4 PC BOARDS AND PARTS LIST 6 5 INCLUDED ACCESSORIES 10 NOTES PC boards shown are viewed from parts side. The parts with no reference number or no parts number in the exploded views are not supplied. As regards the resistors and capacitors, refer to the circuit diagrams contained in this manual. Ј Parts marked with this sign are safety critical components. They Ј must be replaced with identical components - refer to the appropriate parts list and ensure exact replacement. Parts of [ ] mark can be used only with the version designated. Effective : December, 2002 S-0074A 1 SPECIFICATIONS Amplifier Section Power output ... 50 W +50 W (8, 1kHz, 0.1% THD) S/N Ratio ... LINE : 85dB (IHF-A) Input Sensitivity/Impedance ... LINE : 300mV/47k Frequency Response ... LINE : 20Hz~60kHz Tone Control ... BASS : ±10dB (100Hz) TREBLE : ±10dB (10kHz) General Power Requirement ... 230V, 50Hz Power Consumption ... 160 W Dimensions (W x H x D) ... 435 x 102 x 370mm Weight (Net) ... 7.7 kg Standard Accessory ... Remote Control Unit (RC-1D) (Batteries are not included) Design and specifications are subject to change without notice. 2 2 ADJUSTMENTS Bias Current Adjustment 1. Set the VOLUME control to " ". 2. Set the POWER switch to ON and wait for 10 minutes for preheating. 3. Adjust TVR1 so that the voltage between R142 (heat sink side) and R141 (heat sink side) on AMP PCB becomes 10 1mV. 4. In the same way, adjust TVR2 so that the voltage between R143 (heat sink side) and R144 (heat sink side) becomes 10 1mV. D