MARANTZ DESIGN AND SERVICE
Using superior design and selected high grade 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 specifications for which it is famous.
Parts for your MARANTZ equipment are generally available to our National Marantz Subsidiary or Agent.
ORDERING PARTS :
Parts can be ordered either by mail or by Fax.. In both cases, the correct part number has to be specified. The following information must be supplied to eliminate delays in processing your order :
1.Complete address
2.Complete part numbers and quantities required
3.Description 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.
USA
MARANTZ AMERICA, INC.
440 MEDINAH ROAD ROSELLE, ILLINOIS 60172 USA
PHONE : 630 - 307 - 3100 FAX : 630 - 307 - 2687
USA
SUPERSCOPE TECHNOLOGIES, INC.
MARANTZ PROFESSIONAL PRODUCTS 2640 WHITE OAK CIRCLE, SUITE A AURORA, ILLINOIS 60504 USA
PHONE : 630 - 820 - 4800
FAX : 630 - 820 - 8103
BRAZIL
MARANTZ BRAZIL
CAIXA POSTAL 21462 CEP 04698-970
SAO PAULO, SP, BRAZIL
PHONE : 0800 - 123123(Discagem Direta Gratuita)
FAX |
: +55 11 534. 8988 |
AUSTRALIA / NEW ZEALAND
SCAN AUDIO PTY. LTD.
52 CROWN STREET, RICHMOND 3121 VICTORIA
AUSTRALIA
PHONE : +61 - 3 - 9429 - 2199 FAX : +61 - 3 - 9429 - 9309
JAPAN Technical
MARANTZ JAPAN, INC.
35- I , 7- CHOME, SAGAMIONO SAGAMIHARA - SHI, KANAGAWA JAPAN 228-8505
PHONE : +81 |
42 748 1013 |
FAX : +81 |
42 741 9190 |
CANADA
LENBROOK INDUSTRIES LIMITED
633 GRANITE COURT, PICKERING, ONTARIO L1W 3K1 CANADA
PHONE : 905 - 831 - 6333
FAX : 905 - 831 - 6936
CANADA
TC ELECTRONICS CANADA LTD.
540 FIRING AVE.
BAIE DíURF…, QUEBEC H9X 3T2 CANADA
PHONE : 514 - 457 - 4044
FAX : 514 - 457 - 5524
THAILAND
MRZ STANDARD CO., LTD.
746 - 754 MAHACHAI RD., WANGBURAPAPIROM, PHRANAKORN, BANGKOK, 10200 THAILAND
PHONE : +66 - 2 - 222 - 9181
FAX : +66 - 2 - 224 - 6795
TAIWAN
PAlYUING CO., LTD.
6 TH FL NO, 148 SUNG KIANG ROAD, TAIPEI, 10429, TAIWAN R.O.C. PHONE : +886 (2) 5221304
FAX : +886 (2) 5630415
EUROPE / TRADING
MARANTZ EUROPE B. V.
P.O.BOX 80002
BUILDING SFF2 5600 JB EINDHOVEN THE NETHERLANDS
PHONE : +31 - 40 - 2732241 FAX : +31 - 40 - 2735578
KOREA
MK ENTERPRISES LTD.
2F SHINHAN BLDG., 247-17 SEOKYO-DONG MAPO-KU, SEOUL
KOREA
PHONE : +82 - 2 - 323 - 2155
FAX : +82 - 2 - 323 - 2154
MALAYSIA
WO KEE HONG ELECTRONICS SDN. BHD.
NO. 102 JALAN SS 21/35, DAMANSARA UTAMA, 47400 PETALING JAYA SELANGOR DARUL EHSAN, MALAYSIA
PHONE : +60 |
3 - 7184666 |
FAX : +60 |
3 - 7173828 |
SINGAPORE
FORWARD MARKETING (S) PTE. LTD.
23, LORONG 8, TOA PAYOH, SINGAPORE 319257.
PHONE : +65 |
2583640 |
FAX : +65 |
3564047 |
SHOCK, FIRE HAZARD SERVICE TEST :
CAUTION : After servicing this appliance and prior to returning to customer, 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 corrected before AC power is applied, and verified before it is return to the user/customer.
Ref. UL Standard No. 1492.
In case of difficulties, do not hesitate to contact the Technical
Department at above mentioned address.
981110A.O
Service |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
74SR480/01B/02B |
||||||||||||||||||||
Manual |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
SR480U |
||||||||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Audio/Video receiver |
|||||||||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Audio/Video Integrated amplifier |
|
||||||||||||||||||||||||||||
|
SR480 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
74PM488AV/02B |
|||||||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
PM488AV
|
TABLE OF CONTENTS |
|
SECTION |
PAGE |
|
1. |
TECHNICAL SPECIFICATIONS (SR480) ...................................................................................................... |
1 |
2. |
TECHNICAL SPECIFICATIONS (PM488AV) ................................................................................................. |
2 |
3. |
BLOCK DIAGRAM .......................................................................................................................................... |
3 |
4. |
WIRING DIAGRAM ......................................................................................................................................... |
5 |
5. |
SCHEMATIC DIAGRAM AND PARTS LOCATION (Parts Side) .................................................................... |
7 |
6. |
COMPONENT DESCRIPTIONS ................................................................................................................... |
36 |
7. |
ALIGNMENT PROCEDURES ....................................................................................................................... |
40 |
8. |
EXPLODED VIEW AND PARTS LIST (SR480)............................................................................................ |
43 |
9. |
EXPLODED VIEW AND PARTS LIST (PM488AV) ...................................................................................... |
47 |
10. |
ELECTRICAL PARTS LIST .......................................................................................................................... |
49 |
Please use this service manual with referring to the user guide (D.F.U) without fail.
model SR480/PM488AV
|
4822 725 51191 |
|
Printed in Japan |
First Issue:1999 .03 |
|
237W855010 AO |
||
|
1. TECHNICAL SPECIFICATION (SR480)
FM Tuner Section |
|
Frequency Range ......................................................................................................................... |
87.5 - 108.0 MHz |
Usable Sensitivity .................................................................................................................... |
IHF 0.9 μV / 10.8 dBf |
Signal to Noise Ratio ....................................................................................................... |
Mono / Stereo 0.2 / 0.5 % |
Distortion .......................................................................................................................... |
Mono / Stereo 0.2 / 0.5 % |
Stereo Separation ................................................................................................................. |
U version 1 kHz 48 dB |
|
/01B/02B version 1 kHz 45 dB |
A.C.S. ............................................................................................................................................. |
± 400 kHz 55 dB |
Image Rejection ................................................................................................................................. |
98 MHz 50 dB |
Tuner Output level ...................................................................................... |
U version 1 kHz, ± 75 kHz Dev 940 mV |
|
/01B/02B version 1 kHz, ± 40 kHz Dev 500 mV |
AM Tuner Section |
|
Frequency ........................................................................................................................ |
U version 520 - 1710 kHz |
|
/01B/02B version 522 - 1611 kHz |
Usable Sensitivity ........................................................................................................................... |
Loop 500 μV / m |
Signal to Noise Ratio ...................................................................................................................................... |
50 dB |
Distortion ............................................................................................................................ |
1 kHz, 30 % Mod. 0.5 % |
Selectivity ......................................................................................................................... |
U version ± 20 kHz 70 dB |
|
/01B/02B version ± 10 kHz 25 dB |
Audio Section |
|
Rated Power ( 5 ch drive ) |
|
Front ................................................................................................................. |
20 Hz - 20 kHz 8 ohms 50 W / ch |
Center .................................................................................................................... |
............... 1 kHz 8 ohms 50 W |
Surround ......................................................................................................................... |
1 kHz 8 ohms 50 W / ch |
THD Front ................................................................................................................. |
20 Hz - 20 kHz 8 ohms 0.09% |
Input Sensitivity / Imedance |
|
Linear .................................................................................................................................... |
200 mV / 47 k ohms |
Signal to Noise Ratio ( IHF A ) |
|
Linear ........................................................................................................................................................... |
92 dB |
Video Section |
|
Input / Output Level / Impedance ................................................................................................ |
1.0 Vp-p / 75 ohms |
Others |
|
Power Supply .................................................................................................................. |
U version AC 120 V 60 Hz |
|
/01B version AC 115 V / 230 V 50 / 60 Hz |
|
/02B version AC 230 V 50 Hz |
Power Consumption ....................................................................................................................................... |
280 W |
Dimensions ( MAX ) |
|
Width ............................................................................................................................. |
17 - 1/4 inches ( 440 mm ) |
Height ....................................................................................................................................... |
6 inches ( 153 mm ) |
Depth ............................................................................................................................. |
16 - 1/2 inches ( 420 mm ) |
Weight ............................................................................................................................................... |
31 lbs ( 14 kg ) |
Specifications subject to change without prior notice. |
|
2. TECHNICAL SPECIFICATION (PM488AV)
Audio Section |
|
Rated Power ( 5 ch drive ) |
|
Front ................................................................................................................. |
20 Hz - 20 kHz 8 ohms 50 W / ch |
Center .................................................................................................................... |
............... 1 kHz 8 ohms 50 W |
Surround ......................................................................................................................... |
1 kHz 8 ohms 50 W / ch |
THD Front ................................................................................................................. |
20 Hz - 20 kHz 8 ohms 0.09% |
Input Sensitivity / Imedance |
|
Linear .................................................................................................................................... |
200 mV / 47 k ohms |
Signal to Noise Ratio ( IHF A ) |
|
Linear ........................................................................................................................................................... |
92 dB |
Video Section |
|
Input / Output Level / Impedance ................................................................................................ |
1.0 Vp-p / 75 ohms |
Others |
|
Power Supply ....................................................................................................................... |
115 / 230 V, 50 / 60 Hz |
Power Consumption ....................................................................................................................................... |
280 W |
Dimensions ( MAX ) |
|
Width ............................................................................................................................. |
17 - 1/4 inches ( 440 mm ) |
Height ....................................................................................................................................... |
6 inches ( 153 mm ) |
Depth ............................................................................................................................. |
16 - 1/2 inches ( 420 mm ) |
Weight ............................................................................................................................................... |
31 lbs ( 14 kg ) |
Specifications subject to change without prior notice. |
|
1 |
2 |
3. BLOCK DIADRAM
3 |
4 |
4. WIRING DIAGRAM
5 |
6 |
5. SCHEMATIC DIAGRAMS AND PARTS LOCATIONS (Parts side)
MAIN SCHEMATIC DIAGRAM
7 |
8 |
MAIN BOARD
|
|
|
|
IC103 |
|
|
Q106 |
|
|
IC101 |
Q103 |
Q101 |
Q102 |
IC102 |
IC104 |
Q105 |
Q107 |
IC105 |
Q104 Q108 Q109 |
9 |
10 |
INPUT SCHEMATIC DIAGRAM |
INPUT BOARD |
IC401 IC402
11 |
12 |
INPUT/VIDEO SCHEMATIC DIAGRAM |
INPUT/VIDEO BOARD |
|
|
|
|
|
|
|
IC450 |
|
|
|
Q450 |
IC453 |
IC456 |
Q451 |
IC452 |
13 |
14 |
TUNER SCHEMATIC DIAGRAM ( SR480/01B/02B VERSION)
15 |
16 |
TUNER BOARD (SR480) |
TUNER BOARD (SR480) |
|
|
|
|
Q6 |
Q7D |
Q4 |
|
|
|
|
|
|
|
Q6 |
Q7D |
Q4 |
|
|
|
|
|
|
|
Q2 |
|
|
|
|
|
|
|
Q2 |
|
|
|
||||
IC4D |
IC3 Q8L |
|
Q9 |
Q8R IC1 |
Q1 |
Q5 |
Q3 |
IC2 |
IC4D |
IC3 Q8L |
|
Q9 |
Q8R IC1 |
Q1 |
Q5 |
Q3 |
IC2 |
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
18 |
17 |
Loading...