Kenwood KRF-V7771D Service Manual

Also see for KRF-V7771D: Instruction manual Instruction manual Setup Instruction manual Service manual

Contents

8KRF-V7771D/V7771DECIRCUIT DESCRIPTION(X25) IC53MAIN u-COMuPD78078GF-086V-SEL CONT.FAN-MNJU3713DSEL_DATA, SEL_CLK,VIDEO_STB(X11) IC1,2,4,42(X25) IC23SEL IC1/2TC9162~9164SEL_DATA, SEL_CLK,SEL_STB1, SEL_STB2(X11) IC21,23,25VOLUME ICTC9412/9413APVOL_DATA, VOL_CLK,VOL_CE1(X11) IC44TONE ICTC9184APVOL_DATA, VOL_CLK,VOL_CE2(X25) A1REMOCONREMOCON_IN1 (FRONT PANEL)(X08)IC1TUNER/RDSTDA7479DRDS_DAT, RDS_CLK,RDS_SLEVEL, T_MUTE,SD, STEREO(X11)IC602TUNER PLL ICLC72131PLL_CLK, PLL_DATA,PLL_CE, PLL_DOMEGA CHANGER(CD-0000M)UART_RXD, UART_TXD,(X08) IC5SUB u-COMuPD78056GCSUB_RESET, SDT, MOT,MCK, MREQ, SREQ(X25) IC61FL DRIVERuPD780204FL_DOUT, FL_DIN,FL_CLK, FL_STB,DPU_RSTSERIALSDATA, SBUSY(X07) K1~6(X25) K1RELAYRELAY_A, RELAY_B,RELAY_CS, RELAY_TR,RELAY_POWER, EXT_OUTRELAY_MULTIDESTINATION999_888, 8_16, TSW_B,TSW_1, TSW_2,TSW_3 (CH, SP)(X11) S1ENCODERENC_VOL1, ENC_VOL2(X08) IC4REMOCON COMMUNICATION ICSMK_REQ, SMK_ENB, SMK_RWR, SMK_D0,SMK_D1, SMK_D2, SMK_D3, SMK_D4, SMK_D5,SMK_D6, SMK_D7MUTEMUTE_A, MUTE_B,SW_MUTE, -20dB_ATT,VIDEO_MUTE, SCH_MUTE(X25) IC 90(X08) IC3PERFECT MACROPOWER DETECTTU_PDET, U_PDET,USEL_CTLA, USEL_CTLBUSEL_TRPush key I N P U T SELECTOR S P A S P B MUTE DISPLAY MODETUNER STEREO P. CALLUPP. CALLDOWNATTOFF ON FM AUTO/STEREO MANUAL/MONO(DOLBY DIGITAL LED : OFF ON)CD1 STEREO TONE (TUNED)+10 (light on) OFF (light off)MD/TAPE1 STEREOVIDEO1 PRO LOGICVIDEO2 3 STEREOFLDISPLAY VIDEO3 PRO LOGIC+Re-EQVIDEO4 DSPARENA JAZZ CLUBTHEATERAV AUX STEREO TAPE2OFF ONPHONOSL16/XS8 SW (rear panel): SL16 STANDBY LED (light off), XS8 STANDBY LED (light on)STEREO INPUT LEVEL0dB -3dB -6dB4. Main microprocessor uPD78078GF-086 (X08 : IC3)4-1 Microprocessor periphery block diagram