Kenwood KVT-715DVD Service Manual

Also see for KVT-715DVD: Instruction manual Installation manual

Contents

23KVT-715DVD,725DVD/-B,735DVDKVT-745DVD,765DVD,815DVDNo. Adjustment Measurement Adjustment Adjustment value Measuringitem point part instrument12 R SUB CN850 59pin TEST mode 1. Connect the oscilloscope to 58pin and 59pin between GND OscilloscopeCONTRAST (G OUT) CH14 line.CN850 58pin 2. It is adjusted so that red signal level bigger 0.1V±0.05V than(R OUT) green signal (for 9step signal).13 B SUB CN850 59pin TEST mode 1. Connect the oscilloscope to 60pin and 59pin between GND OscilloscopeCONTRAST (G OUT) CH15 line.CN850 60pin 2. It is adjusted so that blue signal level bigger 0.1V±0.05V than(B OUT) green signal (for 9step signal).14 VCOM CN850 39pin TEST mode Adjust the amplitude value so that VCOM square wave is OscilloscopeCH1 2.25V±0.05V15 FLICKER DISPLAY VR203 1. Confirm there is no flickering (display mode : zoom). Oscilloscope(X35-4280) 2. If the flickering is recognized, adjust VR203 so that the flicker Input signal : graylevel will be the minimum. (30~50% white)Input video signal : 10 step video signal (NTSC 1.0Vp-p)Oscilloscope range : 500mV/DIV ACNote : When the LCD ASSY or the touch panel switch ASSY is replaced, X14- and X35- Circuit, Touch panel and Start position isadjusted together for test mode.The definition of video signal and pedestal signalnegative 1 steppedestalnegative pedestal1 stepwhitenegative whiteADJUSTMENTwww . xiaoyu163. comQQ 376315150 992894298TEL 13942296513 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299