amnuaiservice 14am free download

File name AV-14AM.pdf

AV-14AM AV-14AM STANDARD CIRCUIT DIAGRAM n NOTE ON USING CIRCUIT DIAGRAMS 1. SAFETY The components identified by the symbol and shading are critical for safety. For continued safety replace safety critical components only with manufactures recommended parts. Type No indication MY MM PP MPP MF TF BP TAN (3)Coils No unit Others (4)Power Supply :Ceramic capacitor :Mylar capacitor :Metalized mylar capacitor :Polypropylene capacitor :Metalized polypropylene capacitor :Metalized film capacitor :Thin film capacitor :Bipolar electrolytic capacitor :Tantalum capacitor :[µH] :As specified :B1 :12V :9V :5V *Respective voltage values are indicated (5)Test point :Test point :Only test point display (6)Connecting method :Connector :Wrapping or soldering :Receptacle 2.SPECIFIED VOLTAGE AND WAVEFORM VALUES The voltage and waveform values have been measured under the following conditions. (1)Input signal (2)Setting positions of :Original setting position when shipped (3)Internal resistance of tester (4)Oscilloscope sweeping time :DC 20k¶/V :H :V Л 20µS/div Л 5mS/div each knob/button and variable resistor : Colour bar signal :Others Л Sweeping time is specified (5)Voltage values :All DC voltage values S ince the voltage values of signal circuit vary to some extent according to adjustments, use them as reference values. 3.INDICATION OF PARTS SYMBOL [EXAMPLE] In the PW board :R1209ЁR209 4.INDICATIONS ON THE CIRCUIT DIAGRAM (1)Resistors Resistance value No unit K M :[¶] :[K¶] :[M¶] (7)Ground symbol :LIVE side ground :ISOLATED(NEUTRAL) side ground :EARTH ground :DIGITAL ground Rated allowable power No indication :1/16[W] Others Type No indication OMR MFR MPR UNFR FR (2)Capacitors Capacitance value 1 or higher less than 1 Withstand voltage No indication AC indicated Others :DC50[V] :AC withstand voltage [V] :DC withstand voltage [V] :[pF] :[µF] :As specified :Carbon resistor :Oxide metal film resistor :Metal film resistor :Metal plate resistor :Uninflammable resistor :Fusible resistor 5.NOTE FOR REPAIRING SERVICE This models power circuit is partly different in the GND. The difference of the GND is shown by the LIVE : () side GND and the ISOLATED(NEUTRAL) : () side GND. Therefore, care must be taken for the following points. (1)Do not touch the LIVE side GND or the LIVE side GND and the ISOLATED(NEUTRAL) side GND simultaneously. If the above caution is not respected, an electric shock may be caused. Therefore, make sure that the power cord is surely removed from the receptacle when, for example, the chassis is pulled out. (2)Do not short between the LIVE side GND and ISOLATED(NEUTRAL) side GND or never measure with a measuring apparatus ( oscilloscope, etc.) the LIVE side GND and ISOLATED(NEUTRAL) side GND at the same time. If the above precaution is not respected , a fuse or any parts will be broken. Since the circuit diagram is a standard one, the circuit and circuit constants may be subject to change for improvement without any notice. *Composi