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1、AV SURROUND RECEIVER SR7300 UP SURROUNDVOLUME DOWN MEMORYTUNINGMODEF/PCLEAR S DI ECTMULT ROOM MUTE A D7 1CH NPUTSPEAKRS A/B POWER ON/STANDBYPHONES ENTER S ANDBY AUX1 NPUT S V DEOD GI ALVID OLAUDIOR DSS VCR2AUX1AUX2VCR1DVDTVCDCD RTAPETUNER ATTSELECT D SPMUL IAUTOTUNEDSTV OFNIGHTEAKANA OG DIG TAL ATT
2、S EEPSURRAUTOD RECTDISC 6 1MTX 61SPKR ABEQ I IT L URR UND PCM AV Surround Receiver SR7300 / SR7300OSE / PS7300 03AJ855010 MIT First Issue 2002.11 SR7300 /N1B/U1B/K1G/N1G/U1G SR7300F /N1B/U1B/K1G/N1G/U1G R SR7300 / SR7300FSR7300 / SR7300F Please use this service manual with referring to the user guid
3、e ( D.F.U. ) without fail. Service Manual PS7300 /F1B/F1N AV Surround Amplifi er PS7300PS7300 TABLE OF CONTENTS SECTION PAGE 1. TECHNICAL SPECIFICATIONS AND SERVICE TOOL . 1 2. TECHNICAL DESCRIPTION. 4 3. WIRING DIAGRAM. 5 4. BLOCK DIAGRAM. 7 5. SCHEMATIC DIAGRAM . 9 6. PARTS LOCATION . 25 7. IC DAT
4、A. 36 8. EXPLODED VIEW AND PARTS LIST . 47 9. SERVICE PROGRAM. 51 10. UPDATE FIRMWARE . 53 11. POWER AMPLIFIER ADJUSTMENT. 55 12. SYSTEM ERROR. 56 13. TROUBLE SHOOTING. 57 14. ELECTRICAL PARTS LIST . 61 RadioFans.CN 收音机爱 好者资料库 MARANTZ DESIGN AND SERVICE Using superior design and selected high grade
5、components, MARANTZ company has created the ultimate in stereo sound. Only original MARANTZ parts can insure that your MARANTZ product will continue to perform to the specifi cations for which it is famous. Parts for your MARANTZ equipment are generally available to our National Marantz Subsidiary o
6、r Agent. ORDERING PARTS : Parts can be ordered either by mail or by Fax. In both cases, the correct part number has to be specifi ed. The following information must be supplied to eliminate delays in processing your order : 1. Complete address 2. Complete part numbers and quantities required 3. Desc
7、ription of parts 4. Model number for which part is required 5. Way of shipment 6. Signature : any order form or Fax. must be signed, otherwise such part order will be considered as null and void. SHOCK, FIRE HAZARD SERVICE TEST : CAUTION : After servicing this appliance and prior to returning to cus
8、tomer, measure the resistance between either primary AC cord connector pins ( with unit NOT connected to AC mains and its Power switch ON ), and the face or Front Panel of product and controls and chassis bottom. Any resistance measurement less than 1 Megohms should cause unit to be repaired or corr
9、ected before AC power is applied, and verifi ed before it is return to the user/customer. Ref. UL Standard No. 1492. In case of diffi culties, do not hesitate to contact the Technical Department at above mentioned address. 020816MIT SUPERSCOPE TECHNOLOGIES, INC. USA MARANTZ AMERICA, INC 1100 MAPLEWO
10、OD DRIVE ITASCA, IL. 60143 USA PHONE : 630 - 741 - 0300 FAX : 630 - 741 - 0301 JAPANTechnical MARANTZ JAPAN, INC. 35- 1, 7- CHOME, SAGAMIONO SAGAMIHARA - SHI, KANAGAWA JAPAN 228-8505 PHONE : +81 42 748 1013 FAX : +81 42 741 9190 EUROPE / TRADING MARANTZ EUROPE B.V. P. O. BOX 8744, BUILDING SILVERPOI
11、NT BEEMDSTRAAT 11, 5653 MA EINDHOVEN THE NETHERLANDS PHONE : +31 - 40 - 2507844 FAX : +31 - 40 - 2507860 TECHNICAL AUDIO GROUP PTY, LTD 558 DARLING STREET, BALMAIN, NSW 2041, AUSTRALIA PHONE : 61 - 2 - 9810 - 5300 FAX : 61 - 2 - 9810 - 5355 AUSTRALIA QualiFi Pty Ltd, 24 LIONEL ROAD, MT. WAVERLEY VIC
12、 3149 AUSTRALIA PHONE : +61 - (0)3 - 9543 - 1522 FAX : +61 - (0)3 - 9543 - 3677 NEW ZEALAND WILDASH AUDIO SYSTEMS NZ 14 MALVERN ROAD MT ALBERT AUCKLAND NEW ZEALAND PHONE : +64 - 9 - 8451958 FAX : +64 - 9 - 8463554 THAILAND MRZ STANDARD CO., LTD 746 - 754 MAHACHAI ROAD., WANGBURAPAPIROM, PHRANAKORN,
13、BANGKOK, 10200 THAILAND PHONE : +66 - 2 - 222 9181 FAX : +66 - 2 - 224 6795 TAIWAN PAI- YUING CO., LTD. 6 TH FL NO, 148 SUNG KIANG ROAD, TAIPEI, 10429, TAIWAN R.O.C. PHONE : +886 - 2 - 25221304 FAX : +886 - 2 - 25630415 MALAYSIA WO KEE HONG ELECTRONICS SDN. BHD. 2ND FLOOR BANGUNAN INFINITE CENTRE LO
14、T 1, JALAN 13/6, 46200 PETALING JAYA SELANGOR DARUL EHSAN, MALAYSIA PHONE : +60 - 3 - 7954 8088 FAX : +60 - 3 - 7954 7088 AMERICAS MARANTZ PROFESSIONAL PRODUCTS 2640 WHITE OAK CIRCLE, SUITE A AURORA, ILLINOIS 60504 USA PHONE : 630 - 820 - 4800 FAX : 630 - 820 - 8103 AUSTRALIA KOREA MK ENTERPRISES LT
15、D. ROOM 604/605, ELECTRO-OFFICETEL, 16-58, 3GA, HANGANG-RO, YONGSAN-KU, SEOUL KOREA PHONE : +822 - 3232 - 155 FAX : +822 - 3232 - 154 SINGAPORE WO KEE HONG DISTRIBUTION PTE LTD 130 JOO SENG ROAD #03-02 OLIVINE BUILDING SINGAPORE 368357 PHONE : +65 6858 5535 / +65 6381 8621 FAX : +65 6858 6078 HONG K
16、ONG Jolly ProAudio Broadcast Engineering Ltd. UNIT 2, 10F, WAH HUNG CENTRE, 41 HUNG TO ROAD, KWUN TONG, KLN., HONG KONG PHONE : 852 - 21913660 FAX : 852 - 21913990 CANADA LENBROOK INDUSTRIES LIMITED 633 GRANITE COURT, PICKERING, ONTARIO L1W 3K1 CANADA PHONE : 905 - 831 - 6333 FAX : 905 - 831 - 6936
17、RadioFans.CN 收音机爱 好者资料库 1 1. TECHNICAL SPECIFICATIONS AND SERVICE TOOL TECHNICAL SPECIFICATIONS FM TUNER SECTION (SR ONLY) Frequency Range .87.5 - 108.0 MHz Usable Sensitivity .IHF 1.8 V/16.4 dBf Signal to Noise Ratio .Mono/Stereo 76/72 dB Distortion. Mono/Stereo 0.2/0.3 % Stereo Separation.1 kHz 45
18、 dB Alternate Channel Selectivity. 300 kHz 60 dB Image Rejection. 98 MHz 70 dB Tuner Output Level.1 kHz, 40 kHz Dev 800 mV(/K/N) .1 kHz, 75 kHz Dev 800 mV(/U) AM TUNER SECTION (SR ONLY) Frequency Range . 531 - 1602 kHz (/K/N) Frequency Range .520 - 1710 kHz (/U) Signal to Noise Ratio .50 dB Usable S
19、ensitivity.Loop 400 V Distortion. 400 Hz, 30 % Mod. 0.5 % (/K/N) .1 kHz, 30 % Mod. 0.5 % (/U) Selectivity. 18 kHz 70 dB (/K/N) . 20 kHz 70 dB (/U) AUDIO SECTION Power Output (20 Hz - 20 kHz/THD=0.08%) Front L 3 Remark : Bass signal output from Sub Woofer terminal for SR7300 / SR7300F / PS7300 *Stere
20、o decode : SPK SETUP - BASS MIX : BOTH set SPK setup SubWoofer Output by Decoded mode Sub FrontCenter Surr.Surr.BDD EXDolby(AC-3 2ch) PL ,Neo6CS StereoVirtual WooferL/R(L/R)DTS mES,dES DTS, DTS96/24(PCM:Auto )(Main spk L fix) YesLargeLargeLargeLargeLFELFEnoneL+RL+Rno output SmallLFE+Sb Noneno suurou
21、nd mode SmallLargeLFE+SL+SRLFE+SL+SR SmallLFE+SL+SR+Sb Noneno suuround mode None(prohibit)no suuround modeLFE SmallLargeLargeLFE+CLFE+CCL+RL+Rno output SmallLFE+C+Sb Noneno suuround mode SmallLargeLFE+C+SL+SRLFE+C+SL+SR SmallLFE+C+SL+SR+Sb Noneno suuround mode None(prohibit)no suuround modeLFE+C Non
22、eLargeLargeLFELFEnoneL+RL+Rno output SmallLFE+Sb Noneno suuround mode SmallLargeLFE+SL+SRLFE+SL+SR SmallLFE+SL+SR+Sb Noneno suuround mode None(prohibit)no suuround modeLFE SmallLargeLargeLargeLFE+L+RLFE+L+RL+RL+RL+Rno output SmallLFE+L+R+Sb Noneno suuround mode SmallLargeLFE+L+R+SL+SRLFE+L+R+SL+SR S
23、mallLFE+L+R+SL+SR+Sb Noneno suuround mode None(prohibit)no suuround modeLFE+L+R SmallLargeLargeLFE+L+R+CLFE+L+R+CL+R+CL+RL+Rno output SmallLFE+L+R+C+Sb Noneno suuround mode SmallLargeLFE+L+R+C+SL+SRLFE+L+R+C+SL+SR SmallLFE+L+R+C+SL+SR+Sb Noneno suuround mode None(prohibit)no suuround modeLFE+L+R+C N
24、oneLargeLargeLFE+L+RLFE+L+RL+RL+RL+Rno output SmallLFE+L+R+Sb Noneno suuround mode SmallLargeLFE+L+R+SL+SRLFE+L+R+SL+SR SmallLFE+L+R+SL+SR+Sb Noneno suuround mode None(prohibit)no suuround modeLFE+L+R NoneNo output 4 DTS was introduced in 1994 to provide 5.1 channels of discrete digital audio into h
25、ome theater systems. DTS brings you premium quality discrete multi-channel digital sound to both movies and music. DTS is a multi-channel sound system designed to create full range digital sound reproduction. The no compromise DTS digital process sets the standard of quality for cinema sound by deli
26、vering an exact copy of the studio master recordings to neighborhood and home theaters. Now, every moviegoer can hear the sound exactly as the movie- maker intended. DTS can be enjoyed in the home for either movies or music on of DVDs, LDs, and CDs. “DTS” and “DTS Digital Surround” are registered tr
27、ademarks of Digi- tal Theater Systems, Inc. The advantages of discrete multichannel systems over matrix are well known. But even in homes equipped for discrete multichannel, there remains a need for high-quality matrix decoding. This is because of the large library of matrix surround motion pictures
28、 available on disc and on VHS tape; and analog television broadcasts. The typical matrix decoder of today derives a center channel and a mono surround channel from two-channel matrix stereo material. It is better than a simple matrix in that it includes steering logic to improve separation, but beca
29、use of its mono, band-limited surround it can be disappointing to users accustomed to discrete multichan- nel. Neo 6 offers several important improvements as follow, . Neo 6 provides up to six full-band channels of matrix decoding from stereo matrix material. Users with 6.1 and 5.1 systems will deri
30、ve six and fi ve separate channels, respectively, corresponding to the standard home-theater speaker layouts. . Neo 6 technology allows various sound elements within a channel or channels to be steered separately, and in a way which follows naturally from the original presentation. . Neo 6 offers a
31、music mode to expand stereo nonmatrix recordings into the fi ve- or six-channel layout, in a way which does not diminish the subtlety and integrity of the original stereo recording. DTS-ES Extended Surround is a new multi-channel digital signal format developed by Digital Theater Systems Inc. While
32、offering high compatibility with the conventional DTS Digital Surround format, DTSES Extended Surround greatly improves the 360-degree sur- round impression and space expression thanks to further expanded surround signals. This format has been used professionally in movie theaters since 1999. In add
33、ition to the 5.1 surround channels (FL, FR, C, SL, SR and LFE), DTS-ES Extended Surround also offers the SB (Surround Back) channel for surround playback with a total of 6.1 channels. DTS-ES Extended Surround includes two signal formats with differ- ent surround signal recording methods, as DTS-ES D
34、iscrete 6.1 and DTSES Matrix 6.1. “DTS”, “DTS-ES Extended Surround” and “Neo:6” are trademarks of Digital Theater Systems, Inc. The stereo CD is a 16-bit medium with sampling at 44.1 kHz. Pro- fessional audio has been 20- or 24-bit for some time, and there is increasing interest in higher sampling r
35、ates both for recording and for delivery into the home. Greater bit depths provide extended dynamic range. Higher sampling rates allow wider frequency response and the use of anti-alias and reconstruction fi lters with 2. TECHNICAL DESCRIPTION more favorable aural characteristics. DTS 96/24 allows f
36、or 5.1channel sound tracks to be encoded at a rate of 96kHz/24bits on DVD-Video titles. When DVD-video appeared, it became possible to deliver 24-bit, 96 kHz audio into the home, but only in two channels, and with serious limitations on picture. This capability has had little use. DVD-audio allows 9
37、6/24 in six channels, but a new player is needed, and only analog outputs are provided, necessitating the use of the D/A converters and analog electronics provided in the player. DTS 96/24 offers the following: 1.Sound quality transparent to the original 96/24 master. 2.Full backward compatibility w
38、ith all existing decoders. (Existing decoders will output a 48 kHz signal) 3.No new player required: DTS 96/24 can be carried on DVD-video, or in the video zone of DVD-audio, accessible to all DVD players. 4.96/24 5.1-channel sound with full-quality full-motion video, for music programs and motion p
39、icture soundtracks on DVD-video. Dolby Digital identifi es the use of Dolby Digital (AC-3) audio coding for such consumer formats as DVD and DTV. As with fi lm sound, Dolby Digital can provide up to fi ve full-range channels for left, center, and right screen channels, independent left and right sur
40、- round channels, and a sixth ( “.1”) channel for low-frequency effects. Dolby Surround Pro Logic II is an improved matrix decoding tech- nology that provides better spatiality and directionality on Dolby Sur- round program material; provides a convincing three-dimensional soundfi eld on conventiona
41、l stereo music recordings; and is ideally suited to bring the surround experience to automotive sound. While conventional surround programming is fully compatible with Dolby Surround Pro Logic II decoders, soundtracks will be able to be encoded specifi cally to take full advantage of Pro Logic II pl
42、ayback, including separate left and right surround channels. (Such material is also compatible with conventional Pro Logic decoders.) Dolby Digital EX creates six full-bandwidth output channels from 5.1- channel sources. This is done using a matrix decoder that derives three surround channels from t
43、he two in the original record- ing. For best results, Dolby Digital EX should be used with movies soundtracks recorded with Dolby Digital Surround EX. Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic”, and the double-D symbol are trademarks of Dolby Laborato- ries. Circle Surround II (CS-II) is a powerful and versatile multi-channel technology. CS-II is designed to enable up to 6.1 multi-channel sur- round sound playback from mono, stereo, CS
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