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1、AVR 505 Limited Edition Audio/VideoReceiver SERVICE MANUAL DIGITALLOGIC 7VID 1DVD CD FMAM TAPE 6 CH VID 2 VID 3 PRO LOGIC 3 STEREO DSP 5 CH. STEREO SURR. OFF Surr. Select Coaxial RDS Power for the Digital Revolution RadioFans.CN 收音机爱 好者资料库 TECHNICAL SPECIFICATIONS Technical Specifications Audio Sect
2、ion Stereo Mode Continuous Average Power (FTC) 50 Watts per channel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohms Five-Channel Surround Modes Power Per Individual Channel Front L&R channels: 40 Watts per channel, 0.07% THD, 20Hz20kHz into 8 ohms Center channel: 40 Watts, 0.07% THD, 20Hz20k
3、Hz into 8 ohms Surround channels: 40 Watts per channel, 0.07% THD, 20Hz20kHz into 8 ohms Input Sensitivity/Impedance Linear (High Level)200mV/47kohms Signal-to-Noise Ratio (IHF-A)95dB Surround System Adjacent Channel Separation Analog Decoding 40dB (Pro Logic, etc.) Dolby Digital (AC-3) 55dB DTS55dB
4、 Frequency Response 1W (+0dB, 3dB)10Hz100kHz High Instantaneous Current Capability (HCC)25 Amps Transient Intermodulation Distortion (TIM)Unmeasurable Rise Time16sec Slew Rate40V/sec FM Tuner Section Frequency Range87.5108MHz Usable SensitivityIHF 1.3 V/13.2dBf Signal-to-Noise RatioMono/Stereo: 70/6
5、5dB (DIN) DistortionMono/Stereo: 0.15/0.3% Stereo Separation35dB 1kHz Selectivity400kHz: 70dB Image Rejection80dB IF Rejection90dB AM Tuner Section Frequency Range5221720kHz Signal-to-Noise Ratio45dB Usable SensitivityLoop: 500V Distortion1kHz, 50% Mod: 0.8% Selectivity10kHz: 30dB Video Section Vide
6、o FormatPAL/NTSC Input Level/Impedance1Vp-p/75 ohms Output Level/Impedance 1Vp-p/75 ohms Video Frequency Response10Hz8MHz (3dB) General Power RequirementAC 220-240V/50Hz Power Consumption72W idle, 580W maximum (2 channels driven) Dimensions (Max) Width440mm Height168mm Depth390mm Weight10.9 kg Depth
7、 measurement includes knobs, buttons and terminal connections. Height measurement includes feet and chassis. All features and specifications are subject to change without notice. Harman Kardon is a registered trademark, and Power for the digital revolution is a trademark, of Harman International Ind
8、ustries, Inc. *Manufactured under license from Dolby Laboratories. “Dolby”,“Pro Logic”, and the Double-D symbol are trademarks of Dolby Laboratories, Inc. Confidential Unpublished Works. 19921999 Dolby Laboratories, Inc. All rights reserved. “DTS” and “DTS Digital Surround” are registered trademarks
9、 of Digital Theater Systems, Inc. UltraStereo is a trademark of UltraStereo Corp. VMAx is a trademark of Harman International Industries, Inc., and is an implementation of Cooper Bauck Transaural Stereo under patent license. Logic 7 is a registered trademark of Lexicon, Inc. Crystal is a registered
10、trademark of Cirrus Logic Corp. RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 1/1 PosPart number1st part name2nd part name CQXAVR505 INSTRUCTION MANUAL ASSY CPG1A732TBOX , OUT CARTON CPP1A081ZBAG,POLY SET CPS4A564PAD , SNOW L CPS4A565PAD , SNOW R CPB1061YBAG , POLY CQE1A180ZBOOKLET , IMFORMATIONSA
11、VR2550/3550 CQX1A861YMANUAL , INSTRUCTIONAVR505 CQX1A865YMANUAL , SETUPAVR505 CSA1A018ZFM 1 POLE ANT CSA3A012ZAM LOOP ANTENNA ASSYLUG WIRE TYPE HABAAAM1.5VHKBATTERY HARTAVR505REMOCON ASSYAVR505 KPL0905STAPLE CRE1A037LOCKERSH08M790BO KHE154CLAMPER , ARM KPL6500STAPLE K4FC240CLTAPE , P.P K4FC500CLTAPE
12、 , OPPCLEAR 50M/M 1/2 PosPart number1st part name2nd part name AVR 505 SETSET , AV SURROUND RECEIVER KBN1A174MBC22KNOB , ROTARY KGB1A111XBADGE , HARMAN/KARDON KGX1A338MBC22CAP , VOLUME CGL1A222INDICATOR , VOLUME CGU1A317TWINDOW , FIP CGU1A318ZORNAMENT , VOLUME CGWAVR2600FRONT PANEL ASSY CBT1A819K128
13、KNOB , DELAY CGL1A221INDICATOR , POWER CGW1A366RDZH43PANEL , FRONT CMC1A200PLATE , SHIELD CMD1A443BRACKET , SIDE CMH1A215HOLDER , LED CMK1A010BRACKET , PCB CMX1A148INSULATOR , FUBCTION CMX1A149INSULATOR , SET CMZ1A088FILTER , FIP CUAAVR505BOTTOM CHASSIS ASSY CHD1A012ZSCREW , SPECIAL CHD1A023SCREW ,
14、TRANSM4X10(SP/WA) CHD2A012SCREW , TR AVR505 PACKING AVR505 MECH RadioFans.CN 收音机爱 好者资料库 2/2 PosPart number1st part name2nd part name CB13CWC1C4A13B080BCABLE , CARD 13pins FFCTUNER - DSP CB15CWC1C4A09B100BCABLE , CARD 9pins FFCVIDEO DSP CHE170HOLDER , PCB CHG1A104CUSHION , EVAH=9.5(15X20) CHG1A157CUS
15、HION , RUBBER CJA2B043ZACORD , POWER(EUR)QDR-7100CC CKF4A254YPANEL , REARAVR505 CKL1A069H43FOOT CLZ9W003ZFERRITE , RING29X7.7X19 CMD1A487BRACKET , TRANS CNVKSTM9014MS17TUNER MODULE(EUR) CTB3+10GSCREW CTB3+16GFZSCREW CTWS3+10GSCREW KBC1A147MBZC22KNOB , MOMS KBT1A903MMZC22KNOB , POWER KBT1A904MBZC22KN
16、OB , SET KBT1A905MBYC22KNOB , FUNCTION KHR301CLAMPER BN72CWZAVR230BN72WIRE ASSY CKC1B145S46CABINET , TOP CLZ9Z028ZFERRITE CORE(21.2X6.4X12.7) CMH1A214HOLDER , VOLUME CMZ1A090SHEET , VOLUME CTB3+8JFCSCREW CTB4+6FFCSCREW 1/10 PosPart number1st part name2nd part name COP11578E FRONT PCB ASSY C712HCEA1H
17、H1R0TCAP , ELECT1UF 50V C713HCBS1H223ZFTCAP , CERAMIC0.022UF 50V Z C714HCBS1H151KBTCAP , CERAMIC150PF 50V K C716HCEA1CH331TCAP , ELECT C717HCBS1H221KBTCAP , CERAMIC220PF 50V K C718HCBS1H221KBTCAP , CERAMIC220PF 50V K C719HCBS1H181KBTCAP , CERAMIC180PF 50V K C720HCBS1H181KBTCAP , CERAMIC180PF 50V K C
18、721HCBS1H181KBTCAP , CERAMIC180PF 50V K C722HCEA1CH101TCAP , ELECT100UF 16V C723HCBS1H104ZFTCAP , CERAMIC0.1UF 50V Z C724HCBS1H223ZFTCAP , CERAMIC0.022UF 50V Z C725CCKT1H473ZFCAP , CERAMIC0.047UF 50V ZF C726HCEA0JH102TCAP , ELECT1000UF 6.3V AVR505 MECH AVR505 FRONT BD RadioFans.CN 收音机爱 好者资料库 2/10 Po
19、sPart number1st part name2nd part name C727HCBS1H221KBTCAP , CERAMIC220PF 50V K C728HCBS1H104ZFTCAP , CERAMIC0.1UF 50V Z C729CCKT1H473ZFCAP , CERAMIC0.047UF 50V ZF C730HCBS1H104ZFTCAP , CERAMIC0.1UF 50V Z C731HCEA1HH100TCAP , ELECT10UF 50V C732HCBS1H104ZFTCAP , CERAMIC0.1UF 50V Z C733HCEA1EH470TCAP
20、, ELECT47UF 25V C735HCEA1VH100TCAP , ELECT10UF 35V C736HCBS1H223ZFTCAP , CERAMIC0.022UF 50V Z C737HCBS1H180JTCAP , CERAMIC C738HCBS1H180JTCAP , CERAMIC C770HCBS1H223ZFTCAP , CERAMIC0.022UF 50V Z C771HCBS1H223ZFTCAP , CERAMIC0.022UF 50V Z C773HCEA1VH100TCAP , ELECT10UF 35V C774HCEA1VH100TCAP , ELECT1
21、0UF 35V C775HCBS1H151KBTCAP , CERAMIC150PF 50V K C776HCBS1H151KBTCAP , CERAMIC150PF 50V K C777HCEA1VH100TCAP , ELECT10UF 35V C778HCEA1VH100TCAP , ELECT10UF 35V C779HCEA1CKS470TCAP, ELECT C780HCEA1CKS470TCAP, ELECT C781HCEA1CKS100TCAP , ELECT C782HCEA1CKS100TCAP , ELECT C785HCBS1H470JTCAP , CERAMIC47
22、PF 50V J C786HCBS1H470JTCAP , CERAMIC47PF 50V J C787HCEA1CKS100TCAP , ELECT C788HCEA1CKS100TCAP , ELECT C789HCEA1CKS100TCAP , ELECT C790HCEA1CKS100TCAP , ELECT C791HCEA1CKS470TCAP, ELECT C792HCEA1CKS470TCAP, ELECT C793KCFE1J183JBTCAP , FILM0.018UF 63V J C794KCFE1J183JBTCAP , FILM0.018UF 63V J C795KC
23、FE1J823JBTCAP , FILM0.082UF 63V J C796KCFE1J823JBTCAP , FILM0.082UF 63V J C797KCFE1J332JBTCAP , FILM0.0033UF 63V J C798KCFE1J332JBTCAP , FILM0.0033UF 63V J C799KCFE1J183JBTCAP , FILM0.018UF 63V J C800KCFE1J183JBTCAP , FILM0.018UF 63V J C805HCBS1H223ZFTCAP , CERAMIC0.022UF 50V Z C806HCBS1H223ZFTCAP ,
24、 CERAMIC0.022UF 50V Z C807CCKT1H104ZFCAP , CERAMIC50V 0.1UF C808CCKT1H181KBCAP , CERAMIC180PF 50V KB C809HCEA1AH471TCAP , ELECT470UF 10V AVR505 FRONT BD RadioFans.CN 收音机爱 好者资料库 3/10 PosPart number1st part name2nd part name C810HCEA1CH101TCAP , ELECT100UF 16V C811HCEA1CH101TCAP , ELECT100UF 16V C812H
25、CBS1H104ZFTCAP , CERAMIC0.1UF 50V Z C813HCEA1HH4R7TCAP , ELECT4.7UF 50V C814HCEA1HH4R7TCAP , ELECT4.7UF 50V C850HCBS1H471KBTCAP , CERAMIC C851HCBS1H471KBTCAP , CERAMIC C852HCBS1H104ZFTCAP , CERAMIC0.1UF 50V Z C855HCBS1H101KBTCAP , CERAMIC100PF 50V K C856HCBS1H101KBTCAP , CERAMIC100PF 50V K C857HCBS1
26、H104ZFTCAP , CERAMIC0.1UF 50V Z C858HCBS1H223ZFTCAP , CERAMIC0.022UF 50V Z C859HCBS1H223ZFTCAP , CERAMIC0.022UF 50V Z C860HCBS1H223ZFTCAP , CERAMIC0.022UF 50V Z C861HCBS1H223ZFTCAP , CERAMIC0.022UF 50V Z C862HCBS1H101KBTCAP , CERAMIC100PF 50V K C863HCBS1H101KBTCAP , CERAMIC100PF 50V K C864HCEA1VH100
27、TCAP , ELECT10UF 35V C865CCKT1H473ZFCAP , CERAMIC0.047UF 50V ZF C866HCEA1CKS100TCAP , ELECT C867HCEA1CKS100TCAP , ELECT C868HCEA1CKS470TCAP, ELECT C869HCEA1CKS470TCAP, ELECT C870HCBS1H681KBTCAP , CERAMIC C871HCBS1H681KBTCAP , CERAMIC C872HCEA1CH331TCAP , ELECT C873HCEA1CH331TCAP , ELECT C874HCBS1H10
28、1KBTCAP , CERAMIC100PF 50V K C875HCBS1H473ZFTCAP , CERAMIC0.047UF 50V Z C876HCBS1H473ZFTCAP , CERAMIC0.047UF 50V Z C877HCBS1H473ZFTCAP , CERAMIC0.047UF 50V Z C878HCBS1H473ZFTCAP , CERAMIC0.047UF 50V Z C880HCEA1AH221TCAP , ELECT C882HCBS1H104ZFTCAP , CERAMIC0.1UF 50V Z C886HCEA0JH102TCAP , ELECT1000U
29、F 6.3V C889HCBS1H220JTCAP , CERAMIC C890HCBS1H220JTCAP , CERAMIC C891HCBS1H223ZFTCAP , CERAMIC0.022UF 50V Z C892HCBS1H223ZFTCAP , CERAMIC0.022UF 50V Z C893HCBS1H223ZFTCAP , CERAMIC0.022UF 50V Z C894HCBS1H223ZFTCAP , CERAMIC0.022UF 50V Z C895HCEA1AH471TCAP , ELECT470UF 10V C896HCBS1H223ZFTCAP , CERAM
30、IC0.022UF 50V Z C897HCEA1AH471TCAP , ELECT470UF 10V AVR505 FRONT BD RadioFans.CN 收音机爱 好者资料库 4/10 PosPart number1st part name2nd part name C900HCBS1H104ZFTCAP , CERAMIC0.1UF 50V Z D724HVD1SS133MTDIODE1SS133T-77 D728HVD1SS133MTDIODE1SS133T-77 D729HVD1SS133MTDIODE1SS133T-77 D730HVD1SS133MTDIODE1SS133T-
31、77 D761HVD1SS133MTDIODE1SS133T-77 D774HVD1SS133MTDIODE1SS133T-77 D775HVD1SS133MTDIODE1SS133T-77 D776KVD1N4003STDIODE1N4003 D777HVD1SS133MTDIODE1SS133T-77 D778KVD1N4003STDIODE1N4003 D779HVD1SS133MTDIODE1SS133T-77 D783HVD1SS133MTDIODE1SS133T-77 D784HVD1SS133MTDIODE1SS133T-77 D785HVD1SS133MTDIODE1SS133
32、T-77 D786HVDMTZJ5.6BTDIODE , ZENER D787HVDMTZJ5.6BTDIODE , ZENER IC87HVIRE5VL28CATZIC , RESET L702HLQ02C100KTCOIL , AXAIL Q701HVTKRC107MTT.RKRC107M Q702HVTKRC107MTT.RKRC107M Q703HVTKRC107MTT.RKRC107M Q705HVTKRC107MTT.RKRC107M Q706HVTKRC107MTT.RKRC107M Q722HVTKRA107MTT.RKRA107M Q724HVTKRC107MTT.RKRC1
33、07M Q725HVTKRC107MTT.RKRC107M Q726HVTKRC107MTT.RKRC107M Q727HVTKRC107MTT.RKRC107M Q728HVTKRC107MTT.RKRC107M Q729HVTKRC107MTT.RKRC107M Q734HVTKTC2874BTT.R , MUTEKTC2874B Q735HVTKTC2874BTT.R , MUTEKTC2874B Q736HVTKTC2874BTT.R , MUTEKTC2874B Q737HVTKTC2874BTT.R , MUTEKTC2874B Q738HVTKRC107MTT.RKRC107M
34、Q739HVTKTA1271YTT.RKTA1271Y Q743HVTKRA107MTT.RKRA107M R701CRD20TJ103TRES , CARBON10K OHM 1/5W J R702CRD20TJ1R0TRES , CARBON1 OHM 1/5W J R704CRD20TJ100TRES , CARBON10 OHM 1/5W J R705CRD20TJ820TRES , CARBON82 OHM 1/5W J R706CRD20TJ820TRES , CARBON82 OHM 1/5W J R707CRD20TJ820TRES , CARBON82 OHM 1/5W J
35、AVR505 FRONT BD RadioFans.CN 收音机爱 好者资料库 5/10 PosPart number1st part name2nd part name R708CRD20TJ820TRES , CARBON82 OHM 1/5W J R709CRD20TJ470TRES , CARBON47 OHM 1/5W J R710CRD20TJ470TRES , CARBON47 OHM 1/5W J R711CRD20TJ470TRES , CARBON47 OHM 1/5W J R712CRD20TJ470TRES , CARBON47 OHM 1/5W J R713CRD20
36、TJ332TRES , CARBON3.3K OHM 1/5W J R714CRD20TJ470TRES , CARBON47 OHM 1/5W J R715CRD20TJ470TRES , CARBON47 OHM 1/5W J R716CRD20TJ102TRES , CARBON1K OHM 1/5W J R717CRD20TJ103TRES , CARBON10K OHM 1/5W J R718CRD20TJ222TRES , CARBON2.2K OHM 1/5W J R719CRD20TJ102TRES , CARBON1K OHM 1/5W J R721CRD20TJ103TRE
37、S , CARBON10K OHM 1/5W J R723CRD20TJ222TRES , CARBON2.2K OHM 1/5W J R724CRD20TJ102TRES , CARBON1K OHM 1/5W J R725CRD20TJ103TRES , CARBON10K OHM 1/5W J R726CRD20TJ103TRES , CARBON10K OHM 1/5W J R727CRD20TJ102TRES , CARBON1K OHM 1/5W J R728CRD20TJ101TRES , CARBON100 OHM 1/5W J R730CRD20TJ112TRES,CABON
38、 R731CRD20TJ223TRES , CARBON22K OHM 1/5W J R732CRD20TJ202TRES , CARBON R733CRD20TJ272TRES , CARBON2.7K OHM 1/5W J R734CRD20TJ103TRES , CARBON10K OHM 1/5W J R735CRD20TJ103TRES , CARBON10K OHM 1/5W J R736CRD20TJ272TRES , CARBON2.7K OHM 1/5W J R737CRD20TJ100TRES , CARBON10 OHM 1/5W J R744CRD20TJ103TRES
39、 , CARBON10K OHM 1/5W J R745CRD20TJ103TRES , CARBON10K OHM 1/5W J R746CRD20TJ103TRES , CARBON10K OHM 1/5W J R747CRD20TJ103TRES , CARBON10K OHM 1/5W J R749CRD20TJ223TRES , CARBON22K OHM 1/5W J R750CRD20TJ223TRES , CARBON22K OHM 1/5W J R751CRD20TJ223TRES , CARBON22K OHM 1/5W J R753CRD20TJ102TRES , CAR
40、BON1K OHM 1/5W J R754CRD20TJ152TRES , CARBON1.5K OHM 1/5W J R755CRD20TJ182TRES , CARBON1.8K OHM 1/5W J R756CRD20TJ272TRES , CARBON2.7K OHM 1/5W J R757CRD20TJ332TRES , CARBON3.3K OHM 1/5W J R758CRD20TJ562TRES , CARBON5.6K OHM 1/5W J R759CRD20TJ102TRES , CARBON1K OHM 1/5W J R760CRD20TJ152TRES , CARBON
41、1.5K OHM 1/5W J R761CRD20TJ182TRES , CARBON1.8K OHM 1/5W J R762CRD20TJ272TRES , CARBON2.7K OHM 1/5W J AVR505 FRONT BD RadioFans.CN 收音机爱 好者资料库 6/10 PosPart number1st part name2nd part name R763CRD20TJ332TRES , CARBON3.3K OHM 1/5W J R764CRD20TJ562TRES , CARBON5.6K OHM 1/5W J R765CRD20TJ752TRES , CARBO
42、N7.5K OHM 1/5W J R766CRD20TJ102TRES , CARBON1K OHM 1/5W J R767CRD20TJ152TRES , CARBON1.5K OHM 1/5W J R768CRD20TJ182TRES , CARBON1.8K OHM 1/5W J R769CRD20TJ272TRES , CARBON2.7K OHM 1/5W J R771CRD20TJ103TRES , CARBON10K OHM 1/5W J R772CRD20TJ103TRES , CARBON10K OHM 1/5W J R773CRD20TJ103TRES , CARBON10
43、K OHM 1/5W J R774CRD20TJ222TRES , CARBON2.2K OHM 1/5W J R775CRD20TJ470TRES , CARBON47 OHM 1/5W J R776CRD20TJ470TRES , CARBON47 OHM 1/5W J R777CRD20TJ100TRES , CARBON10 OHM 1/5W J R810CRD20TJ101TRES , CARBON100 OHM 1/5W J R811CRD20TJ101TRES , CARBON100 OHM 1/5W J R813CRD20TJ104TRES , CARBON100K OHM 1
44、/5W J R814CRD20TJ104TRES , CARBON100K OHM 1/5W J R822CRD20TJ471TRES , CARBON470 OHM 1/5W J R824CRD20TJ820TRES , CARBON82 OHM 1/5W J R825CRD20TJ181TRES , CARBON180 OHM 1/5W J R826CRD20TJ102TRES , CARBON1K OHM 1/5W J R827CRD20TJ102TRES , CARBON1K OHM 1/5W J R829CRD20TJ184TRES , CARBON R830CRD20TJ184TR
45、ES , CARBON R831CRD20TJ562TRES , CARBON5.6K OHM 1/5W J R832CRD20TJ562TRES , CARBON5.6K OHM 1/5W J R833CRD20TJ102TRES , CARBON1K OHM 1/5W J R834CRD20TJ102TRES , CARBON1K OHM 1/5W J R835CRD20TJ184TRES , CARBON R836CRD20TJ184TRES , CARBON R837CRD20TJ101TRES , CARBON100 OHM 1/5W J R838CRD20TJ101TRES , C
46、ARBON100 OHM 1/5W J R839CRD20TJ104TRES , CARBON100K OHM 1/5W J R840CRD20TJ104TRES , CARBON100K OHM 1/5W J R841CRD20TJ473TRES , CARBON47K OHM 1/5W J R842CRD20TJ473TRES , CARBON47K OHM 1/5W J R843CRD20TJ105TRES , CARBON1M OHM 1/5W J R844CRD20TJ105TRES , CARBON1M OHM 1/5W J R845CRD20TJ104TRES , CARBON1
47、00K OHM 1/5W J R846CRD20TJ104TRES , CARBON100K OHM 1/5W J R847CRD20TJ102TRES , CARBON1K OHM 1/5W J R848CRD20TJ102TRES , CARBON1K OHM 1/5W J R849CRD20TJ223TRES , CARBON22K OHM 1/5W J AVR505 FRONT BD RadioFans.CN 收音机爱 好者资料库 7/10 PosPart number1st part name2nd part name R850CRD20TJ223TRES , CARBON22K O
48、HM 1/5W J R851CRD20TJ392TRES , CARBON R852CRD20TJ392TRES , CARBON R853CRD20TJ222TRES , CARBON2.2K OHM 1/5W J R854CRD20TJ222TRES , CARBON2.2K OHM 1/5W J R855CRD20TJ681TRES , CARBON680 OHM 1/5W J R856CRD20TJ681TRES , CARBON680 OHM 1/5W J R857CRD20TJ221TRES , CARBON220 OHM 1/5W J R858CRD20TJ221TRES , C
49、ARBON220 OHM 1/5W J R864CRD20TJ272TRES , CARBON2.7K OHM 1/5W J R865CRD20TJ102TRES , CARBON1K OHM 1/5W J R866CRD20TJ272TRES , CARBON2.7K OHM 1/5W J R868CRD20TJ1R0TRES , CARBON1 OHM 1/5W J R869CRD20TJ750TRES , CARBON75 OHM 1/5W J R871CRD20TJ104TRES , CARBON100K OHM 1/5W J R872CRD20TJ104TRES , CARBON100K OHM 1/5W J R873CRD20TJ471TRES , CARBON470 OHM 1/5W J R874CRD20TJ471TRES , CARBON470 OHM 1/5W J R875CRD20TJ103TRES , CARBON10K OHM 1/5W J R876CRD20TJ750TRES , CARBON75 OHM 1/5W J R877CRD20TJ750TRES , CARBON75 OHM 1/5W J R878CRD20TJ750TRES , CARBON75 OHM 1/5W J R881CRD20