Kenwood KVT-727DVD Service Manual

Also see for KVT-727DVD: Instruction manual Installation manual Installation manual

Contents

9KVT-727DVD/727DVDYRef. No. Application / Function Operation / Condition / CompatibilityIC654 Video switch For switching composite signal from DVD composite signal and X34IC701 Ope amp IC For audio LPFIC702 Regulator IC For audio 5V generationIC703 DAC for audio Conversion of digital signal into analog signalIC750 Logic IC (Inverter) SPDIF driverIC770 CPLD Audio DAC controlIC850 Logic IC (NAND) For frequency dividing of clock for OSD-ICQ100 NPN digital transistor For SW14.4V controlQ101 Small signal NPN transistor For detection circuit for reduced/excess currentQ102 NPN digital transistor For detection circuit for reduced/excess currentQ103 Small signal PNP transistor For detection circuit for reduced/excess currentQ104 Small signal NPN transistor For detection circuit for reduced/excess currentQ105 Small signal PNP transistor For detection circuit for reduced/excess currentQ106 FET For SW14.4V generationQ107 Small signal NPN transistor For ACC detectionQ108 PNP digital transistor For PARK detectionQ109 FET For SW5V/MECHA7V controlQ110 FET For SW3.3V/MECHA7.5V controlQ111 FET For BL8.5V, ±7V controlQ112 NPN digital transistor For detection circuit for reduced/excess currentQ117 NPN digital transistor For MECHA7.5/5V switchingQ120 Small signal PNP transistor For switching μ-com AD conversion reference voltage BU3.3V/SW3.3VQ121 NPN digital transistor For switching μ-com AD conversion reference voltage BU3.3V/SW3.3VQ122 Small signal PNP transistor For switching μ-com AD conversion reference voltage BU3.3V/SW3.3VQ123,124 Small signal NPN transistor For switching μ-com AD conversion reference voltage BU3.3V/SW3.3VQ125 Small signal NPN transistor For detection circuit for reduced/excess currentQ126,127 PNP digital transistor For detection circuit for reduced/excess currentQ128 PNP digital transistor For SW14.4V controlQ129Low-frequency general amplificationFor SW14.4V controlNPN transistor∗2Q170 NPN digital transistor For switching DC-DC oscillation frequencyQ172 NPN digital transistor For switching DC-DC oscillation frequencyQ175 NPN digital transistor For switching DC-DC oscillation frequencyQ180,181 Small signal NPN transistor For IC303 7.5V generation (7.5V fluctuates a little)Q182 Small signal PNP transistor For IC303 7.5V generation (7.5V fluctuates a little)Q183 NPN digital transistor For LLUMI detectionQ184 NPN digital transistor For REVERSE detectionQ200 NPN transistor For BLUE_LED controlQ201 PNP digital transistor For BLUE_LED controlQ202 NPN digital transistor For GREEN_LED controlCOMPONENTS DESCRIPTION