JVC LT-42A80SU free download

File name LT-42A80SU.pdf

SCHEMATIC DIAGRAMS LCD INTEGRATED DIGITAL TELEVISION LT-42A80SU, LT-42A80ZU, LT-42DA8BJ, LT-42DA8SJ, LT-42DA8SU, LT-42DA8ZU, LT-42DA81U, LT-42DT8ZJ CD-ROM No.SML200704 BASIC CHASSIS FT3 [A80 series] [DA8 series] [DT8 series] COPYRIGHT © 2007 Victor Company of Japan, Limited. No.YA515 2007/4 LT-42A80SU, LT-42A80ZU, LT-42DA8BJ, LT-42DA8SJ LT-42DA8SU, LT-42DA8ZU, LT-42DT8ZJ, LT-42DA81U STANDARD CIRCUIT DIAGRAM NOTE ON USING CIRCUIT DIAGRAMS 1.SAFETY The components identified by the symbol and shading are critical for safety. For continued safety replace safety ciritical components only with manufactures recommended parts. Type No indication MM PP MPP MF TF BP TAN (3)Coils No unit Others : Original setting position when shipped : DC 20k/V :H :V : Othters (5)Voltage values 20µs / div 5ms / div Sweeping time is specified (4)Power Supply : [µH] : As specified : Ceramic capacitor : Metalized mylar capacitor : Polypropylene capacitor : Metalized polypropylene capacitor : Metalized film capacitor : Thin film capacitor : Bipolar electrolytic capacitor : Tantalum capacitor 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 each knob/button and variable resistor (3)Internal resistance of tester (4)Oscilloscope sweeping time : Colour bar signal : B1 : 9V Respective voltage values are indicated : B2 (12V) : 5V (5)Test point : Test point : Only test point display : All DC voltage values Since the voltage values of signal circuit vary to some extent according to adjustments, use them as reference values. (6)Connecting method : Connector : Wrapping or soldering 3.INDICATION OF PARTS SYMBOL [EXAMPLE] In the PW board : R1209 R209 : Receptacle 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 Others : [pF] : [µF] : DC50[V] : DC withstand voltage [V] : Carbon resistor : Oxide metal film resistor : Metal film resistor : Metal plate resistor : Uninflammable resistor : Fusible resistor : As specified 5.NOTE FOR REPAIRING SERVICE This model's 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 nev