AV SURROUND RECEIVER SR7300
UP
SURROUND
VOLUME
DOWN
MEMORY
TUNING
MODE
F/P
CLEAR
S-DIRECT
MULTIROOM
MUTE
A/D
7.1CH INPUT
SPEAKRS A/B
POWER ON/STANDBY
PHONES
ENTER
STANDBY
AUX1 INPUT
S-VIDEO
DIGITAL
VIDEO
L
AUDIO
R
DSS/VCR2
AUX1
AUX2
VCR1
DVD
TV
CD
CD-R
TAPE
TUNER
ATT
SELECT
DISP
MULTI
AUTO
TUNED
ST
V OFF
NIGHT
PEAK
ANALOG
DIGITAL
ATT
SLEEP
SURR
AUTO
DIRECT
DISC 6.1
MT X 6.1
SPKR AB
EQ
DIGITAL
SURROUND
PCM
L
C
R
SL
S
SR
LFE
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
/
SR7300F
Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
Service
Manual
PS7300 /F1B/F1N
AV Surround Amplifier
PS7300
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 DATA................................................................................................................ 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
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.
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.
020816MIT
SUPERSCOPE TECHNOLOGIES, INC.
USA
MARANTZ AMERICA, INC
1100 MAPLEWOOD DRIVE
ITASCA, IL. 60143
USA
PHONE : 630 - 741 - 0300
FAX
: 630 - 741 - 0301
JAPAN Technical
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 SILVERPOINT
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 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,
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
LOT 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 LTD.
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 KONG
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
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 µV/16.4 dBf
Signal to Noise Ratio ....................... Mono/Stereo 76/72 dB
Distortion......................................... Mono/Stereo 0.2/0.3 %
Stereo Separation .............................................1 kHz 45 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 Sensitivity.............................................Loop 400 µV
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&R...............................................8 ohms 105 W / Ch
Center ....................................................8 ohms 105 W / Ch
Surround L&R ........................................8 ohms 105 W / Ch
Surround Back .......................................8 ohms 105 W / Ch
Front L&R...............................................6 ohms 130 W / Ch
Center ....................................................6 ohms 130 W / Ch
Surround L&R ........................................6 ohms 130 W / Ch
Surround Back .......................................6 ohms 130 W / Ch
Input Sensitivity/Impedance ................... 168 mV/ 47 kohms
Signal to Noise Ratio(Analog Input / Source Direct) 105 dB
Frequency Response
Analog Input / Source Direct .....8 Hz - 100 kHz (± 3 dB)
Digital Input / 96 kHz PCM ......... 8 Hz - 45 kHz (± 3 dB)
VIDEO
Television Format ............................................. NTSC (/F/U)
......................................NTSC/PAL (/K/N)
Input Level/Impedance................................ 1 Vp-p/75 ohms
Output Level/Impedance ............................. 1 Vp-p/75 ohms
Video Frequency Response........ 5 Hz to 10 MHz ( 3 dB) (/K/N)
..............5 Hz to 8 MHz ( 1 dB) (/U)
Component Video Frequency Response . 5 Hz to 40 MHz ( 3 dB) (/K/N)
S/N .............................................................................60 dB
GENERAL
Power Requirement ........................ AC 100 V 50/60 Hz (/F)
......................... AC 230 V 50 Hz (/K/N)
.............................AC 120 V 60 Hz (/U)
Power Consumption................................................... 480 W
Weight ........................................28.9 lbs (13.1 Kg) (/K/N/U)
............................................................... 14.7 Kg (/F)
ACCESSORIES
Remote Control Unit
RC7300SR ................................................................... 1
AA-size batteries............................................................... 2
FM Antenna (SR ONLY)..................................................... 1
AM Loop Antenna (SR ONLY) ........................................... 1
AC Cable...............................................................1 (/F/K/N)
Specifications subject to change without prior notice.
SERVICE TOOL
Updated of the CPU and DSP DISC ........................... *SR7300CDR
(The disc is regarding when exchanged in QU01.)
2
The relation between the selected surround mode and the input signal
The surround mode is selected with the surround mode buttons on SR7300/SR7300F/PS7300 or the remote control unit.
However, the sound you hear is subject to the relationship between the selected surround mode and input signal. That
relationship is as follows;
3
Remark : Bass signal output from Sub Woofer terminal for SR7300 / SR7300F / PS7300
*Stereo decode : SPK SETUP - BASS MIX : BOTH set
SPK setup
SubWoofer Output by Decoded mode
Sub
Front
Center
Surr.
Surr.B
DD EX
Dolby(AC-3
2ch)
PL ,Neo6
CS
Stereo
Virtual
Woofer
L/R
(L/R)
DTS mES,dES
DTS, DTS96/24
(PCM:Auto )
(Main spk L fix)
Yes
Large
Large
Large
Large
LFE
LFE
none
L+R
L+R
no output
Small
LFE+Sb
None
no suuround mode
Small
Large
LFE+SL+SR
LFE+SL+SR
Small
LFE+SL+SR+Sb
None
no suuround mode
None
(prohibit)
no suuround mode
LFE
Small
Large
Large
LFE+C
LFE+C
C
L+R
L+R
no output
Small
LFE+C+Sb
None
no suuround mode
Small
Large
LFE+C+SL+SR
LFE+C+SL+SR
Small
LFE+C+SL+SR+Sb
None
no suuround mode
None
(prohibit)
no suuround mode
LFE+C
None
Large
Large
LFE
LFE
none
L+R
L+R
no output
Small
LFE+Sb
None
no suuround mode
Small
Large
LFE+SL+SR
LFE+SL+SR
Small
LFE+SL+SR+Sb
None
no suuround mode
None
(prohibit)
no suuround mode
LFE
Small
Large
Large
Large
LFE+L+R
LFE+L+R
L+R
L+R
L+R
no output
Small
LFE+L+R+Sb
None
no suuround mode
Small
Large
LFE+L+R+SL+SR
LFE+L+R+SL+SR
Small
LFE+L+R+SL+SR+Sb
None
no suuround mode
None
(prohibit)
no suuround mode
LFE+L+R
Small
Large
Large
LFE+L+R+C
LFE+L+R+C
L+R+C
L+R
L+R
no output
Small
LFE+L+R+C+Sb
None
no suuround mode
Small
Large
LFE+L+R+C+SL+SR
LFE+L+R+C+SL+SR
Small
LFE+L+R+C+SL+SR+Sb
None
no suuround mode
None
(prohibit)
no suuround mode
LFE+L+R+C
None
Large
Large
LFE+L+R
LFE+L+R
L+R
L+R
L+R
no output
Small
LFE+L+R+Sb
None
no suuround mode
Small
Large
LFE+L+R+SL+SR
LFE+L+R+SL+SR
Small
LFE+L+R+SL+SR+Sb
None
no suuround mode
None
(prohibit)
no suuround mode
LFE+L+R
None
No output