Kenwood KVT-915DVD Service Manual

Also see for KVT-915DVD: Instruction manual Service manual Instruction manual

Contents

27KVT-915DVD,925DVD,935DVDKVT-945DVD,965DVDItem Adjustment method / Adjustment value Conditions3-8. R sub 1. Connect the oscilloscope to TP272 and TP272 between GND line. • Input : AV1CONTRAST 2. Adjust R sub CONTRAST (VR402) so that VR and VG 10step signal is same level • Input signal : 10step signalVR402 (X14-947) (level difference±0.1V). (NTSC composite videosignal)• Oscilloscope : 0.5V/DIV AC3-9. B sub BRIGHT 1. Connect the oscilloscope to TP272 and TP273 between GND line.VR409 (X14-947) 2. Adjust B sub BRIGHT (VR409) so that VB and VG pedestal signal is same level(level difference±0.1V).3-10. B sub 1. Connect the oscilloscope to TP272 and TP273 between GND line.CONTRAST 2. Adjust B sub CONTRAST (VR403) so that VB and VG 10step signal is same levelVR403 (X14-947) (level difference±0.1V).4. VCOM amplitude 1. Connect the oscilloscope to TP316A (X35-428) between GND line. • Input : AV1VR400 (X14-947) 2. Adjust VCOM (VR400) so that amplitude level is 6.73V±0.05V. • Input signal : 10step signal(NTSC composite videosignal)• Oscilloscope : 1.0V/DIV AC5. Flicker 1. Confirm there is no flickering (display mode : zoom). • Input : AV1VR203 (X35-428) 2. If the flickering is recognized, adjust VR203 so that the flicker level will be the • Input signal : Grayminimum. (30~50% white)• Display mode : Zoom6. DVD VIDEO OUT 1. Connect the oscilloscope to video output terminal for hideaway unit (video output is • Input : DVDLEVEL 75Ω resistor termination to GND). • Input signal : White 100%,VR700 (X14-947) 2. Adjust VIDEO (VR700) so that amplitude level is 1.0Vp-p±0.05V when play for test Gray (30~50% white)disc for 100% white raster. • Display mode : ZoomNote : When the LCD ASSY or the touch panel switch ASSY is replaced, X14- and X35- Circuit, Touch panel and Start position is adjusted togetherfor test mode.6.7V±0.05VADJUSTMENTwww . xiaoyu163. comQQ 376315150 992894298TEL 13942296513 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299