Kenwood KRF-X7775D Service Manual

Also see for KRF-X7775D: User guide User guide Connection and setup guide

Contents

775D/X7775D-S/VR-5080/5090CIRCUIT DESCRIPTIONUT Y C SEL A Y C SEL B(Pin52) (Pin51)O1 L LO2 L LO3 L LO4 L LUX L LD L LTE H HT DSEL A(Pin22) DSEL B(Pin23) DSEL C(Pin24)1 L H LPE1 H H LR L L HO2 H L HO3 L H HO4 H H HH L LRS L L LINPUT Y C SEL A Y C SEL B(Pin52) (Pin51)VIDEO1 L HVIDEO2 L HVIDEO3 L HVIDEO4 L HAV-AUX L HDVD H LV MUTE H HUT VSEL(Pin63)O1 LO2 LO3 LO4 LUX LD HTE LINPUT DSEL A DSEL B DSEL C(Pin22) (Pin23) (Pin24)CD1(OPT) L H LVIDEO2(COAX) L H LVIDEO3(COAX) H H LDVD(OPT/COAX) H L LOTHERS L L L. Port Name I/O Function ACTIVEH LSS - GNDDD - Power supply (+3.3V).2 - Crystal resonator (6MHz) connection.1 I Crystal resonator (6MHz) connection.ST - Pull down port.T2 - Unused.T1 - GNDDD - Power supply (+3.3V).VDD - Power supply (+3.3V).C - Unused.DET I Zone A component signal detection. DetectionDET I Zone A S-terminal signal detection. DetectionK DET I Zone A color killer detection.PT DET I Optical digital input detection.cription of the Circuit Controlital Selector00/5900/5090/KRF-X9995D(for OPT and COAX)✽ The number in the ( ) is pin number of sub microcomputer.• VR-5080/KRF-X7775Deo SelectorAF,BA7611AF,BA7612F,BA7613F) 2 Y C Select2 -1 Y Detect(Pin78) = HDetect(Pin78) = LINPUT CTRL A CTRL A2 CTRL B(Pin66) (Pin64) (Pin65)VIDEO1 L L HVIDEO2 L L HVIDEO3 L L LVIDEO4 L L HAV-AUX L L HDVD H H LV MUTE H H H3 CTRL A, CTRL A2, CTRL B3 -1 C Detect(Pin77) = LVR-5900/5090/KRF-X9995D