Kenwood KRF-X7775D Service Manual

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

Contents

BY CA CC CE CGBZ CB CD CFKRF-X7775D/X7775D-S/VR-5080/5090Y05-4210-107654321V OUTGNDIN 3SW 2IN 2SW 1IN 1891011121314SW 5IN 6SW 3IN 4SW 4IN 5VCC8765V OUTVCCIN 3GND1234IN 1ABIN 28765VCC1324GND10u50C645+1u50+C642150R644220u10C652+1R641DVDY21 GND34A12IN 134 BIN 2220u10DVDC8VCC765C651VCCV OUT 87IN 3GND65R6431501098 SW 5IN 611121314SW 3IN 4SW 4IN 5VCCV3CV OUTGNDIN 3675SW 2IN 2SW 1IN 143210.1 1C648 R6340.022C646HHL(OPEN)L(OPEN) IN1IN2IN3MUTEHL(OPEN)HL(OPEN)OUTCTL-BCTL-A100KR620100KR602100PC602100KR617100KR601100PC60110KR62810KR627CY75R603C603100P100PC604100u10C624C6250.1+0.1C629C608100PR630R624100K10K R6236875C628R606100u10C607100P100KR605C6270.1C606100PR629 C62610K470u10100KR621100KR604R62268C605100P++R61275C6170.1 CYCYYC0.1100PC61075C631+100u10C630R607100PC609CY75R6130.1C61875R614 C6190.10.175R6150.1C620C612100P C75C633+C632100u10R608C611100PYR61675 0.1C621C6350.1100PC61475R609C634100u10+100PC613CY100KR6110.1C616100P100KC637+470u10C636R610C615100PCYR6266868R625V2CV2YV3YV3CV4YV4CDVDYDVDCCTLACTLBL601IN1OUT1IN2OUT2910R662910R661910R659910R660100u10+C6401C6383.3KR63810KR63610KR64727KR66610KR6653.3KR667C639 11 234100KR65210KR6550.01C6591C658470KR65418KR663100R653 7 651000PC65522KR64810KR64922u50C656+10KR65010u50C653+1800PC654R6515.6K1R64247u25C650++47u25C649+0.1C644Q601-604Q605-607+6.3V+5V+5V+5V+5V+5V+5V+5V68R61968R618C6230.1470u10+C6221KR6401KR639INOUTGND+C67110u50 1R6740.1C670+C67247u251R6870.01C6471R633V3YCTBCTA100u10C641+W501CTCCTDCTECTHCTIIC601,602V4YV2YCTEV2CV4CCTCCTDCTECTCCTDCTBCTACTACTB(BOTTOM VIEW)470R670220u10+C657470R669100KR668CTECTACTCCTBCTDCTHCTI0.01C6438Q608-611R63727K47KR645CCYY+6.3V+6.3V1R635CTICTHR63247KR63147K+6.3V +5V+5V+5V +5V+5V+5V+5V +5V+5V+5V+5V+5V+5VIC601IC603IC605IC602IC606IC604IC608X13- ) (B/6)VR-5080/5090 (3/6)KRF-X7775D/X7775D-S (3/6)KONFJIHLMGY VIDEOBUFFERY/C VIDEOBUFFERIC603,604Q601Q602Q603Q604ARECPLAYRECPLAYPLAYPLAYPLAYMONITOR OUTQ605Q606Q607D603D604D602D601Y CCQ609 Q608Q611 Q610IC607IC607(2/2) D605 (1/2)J601J602J603Y/CVIDEO MUTEY/C VIDEOSWCOMPARATOR(Y/C SIGNAL)DVD 6CHVIDEO4VIDEO3VIDEO2VIDEO1Y/C REC OUT MUTEQ613Q614+5.0V AVR(COMPOSIT & Y/C)Y/C VIDEOBUFFERVIDEO SWCOMPOSIT Y/C VIDEO SWTRAP B.P.F. (Y/C SIGNAL)COMPARATORON :DVDEXCEPT ON :DVDY/CMUTEVIDEOJ604Y/C MIX1SS301DAN202U or:D501,601UN5212DTC124EUA orQ506,607,610,611UN5112DTA124EUA or::2SC4213(B)613,614,715-717UPC29M05HB::IC608,708BA7623FIC503,605,606BA7612FMM1508NJM4565MBA7649AF:IC604,702,703:IC507:IC607:IC504:BA7611AFMM1140XFF:IC502,603:IC501,601,602IC901 MAX232NS:Q501,502,508,509,601-604,Q504,505,605,606,608,609D502,6021SS300DAP202U or:D503,504,603,604MA111:D6051SS302DA204U or:4/6X11-B/2-CN126/6X25-E/11-E104/6X11-B/2-CN135/6X13-E/6-E16/6X25-B/11-CN1025/6X07-A/5-CN46/6X25-A/11-WH26/6X25-D/11-CN45/6X35-CN16/6X25-A/11-WH1IC701 BA7613:5.1V5.1V5.1V5.1V6.3V5.1V5.1V5.1V6.3V5.1V5.1V5.1VCAUTION: For continued safety, replace safetycritical components only with manufacturer's rec-ommended parts (refer to parts list). indicatessafety critical components. For continued protec-tion against risk of fire, replace only with sametype and rating fuse(s). To reduce the risk of elec-tric shock, leakage-current or resistance measure-ments shall be carried out (exposed parts areacceptably insulated from the supply circuit)before the appliance is returned to the customer.DOLBY and the double-D symbol are trademarksof Dolby Laboratories Licensing Corporation.Noise reduction circuit made under license fromDolby Laboratories Licensing Corporation.The DC voltage is an actual reading measuredwith a high impedance type voltmeter with a cas-sette loaded at playback mode. The measurementvalue may vary depending on the measuringinstruments used or on the product. Bias circuitDC voltage is measured while in the record mode.