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Service SR7400 /K1G/L1G/N1B/U1B
/N1S/S1G


Manual AV Surround Receiver

PS7400 /F1N
AV Surround Ampli er
AV SURROUND RECEIVER SR7400

SELECTOR VOLUME




DOWN UP
CLEAR MEMORY TUNING F/P MODE




PS7400
SPEAKERS A/B MULTI MULTI SPEAKER 7.1CH INPUT AUX2


SELECT ENTER MUTE S-DIRECT




TV DVD VCR1 DSS/VCR2 AUX1 CD-R TAPE CD TUNER
STANDBY

AUX1 INPUT
DIGITAL S-VIDEO VIDEO L AUDIO R
POWER ON/STANDBY PHONES




www.electronicsrepair.net



SR7400
TABLE OF CONTENTS
SECTION PAGE
1. TECHNICAL SPECIFICATIONS ............................................................................ 1
2. TECHNICAL DESCRIPTION ................................................................................. 4
3. WIRING DIAGRAM................................................................................................ 7
4. BLOCK DIAGRAM................................................................................................. 9
5. SCHEMATIC DIAGRAM ...................................................................................... 11
6. PARTS LOCATION .............................................................................................. 29
7. IC DATA................................................................................................................ 42
8. EXPLODED VIEW AND PARTS LIST ................................................................. 53
9. POWER AMPLIFIER ADJUSTMENT .................................................................. 57
10. SERVICE MODE ................................................................................................. 58
11. SYSTEM ERROR ................................................................................................ 60
12. UPDATE FIRMWARE .......................................................................................... 61
13. ELECTRICAL PARTS LIST ................................................................................. 63



Please use this service manual with referring to the user guide ( D.F.U. ) without fail.




SR7400 / PS7400
Part no. 37AW855010
First Issue 2003.11
ecm
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 EUROPE / TRADING CANADA
MARANTZ AMERICA, INC MARANTZ EUROPE B.V. LENBROOK INDUSTRIES LIMITED
1100 MAPLEWOOD DRIVE P. O. BOX 8744, BUILDING SILVERPOINT 633 GRANITE COURT,
ITASCA, IL. 60143 BEEMDSTRAAT 11, 5653 MA EINDHOVEN PICKERING, ONTARIO L1W 3K1
USA THE NETHERLANDS CANADA
PHONE : 630 - 741 - 0300 PHONE : +31 - 40 - 2507844 PHONE : 905 - 831 - 6333
FAX : 630 - 741 - 0301 FAX : +31 - 40 - 2507860 FAX : 905 - 831 - 6936


AMERICAS AUSTRALIA HONG KONG
SUPERSCOPE TECHNOLOGIES, INC. TECHNICAL AUDIO GROUP PTY, LTD Jolly ProAudio Broadcast Engineering Ltd.
MARANTZ PROFESSIONAL PRODUCTS 43-53 Bridge Rd., UNIT 2, 10F, WAH HUNG CENTRE,
2640 WHITE OAK CIRCLE, SUITE A STANMORE NSW 2048 41 HUNG TO ROAD, KWUN TONG, KLN.,
AURORA, ILLINOIS 60504 USA AUSTRALIA HONG KONG
PHONE : 630 - 820 - 4800 PHONE : +61 - (0)2 - 9519 - 0900 PHONE : 852 - 21913660
FAX : 630 - 820 - 8103 FAX : +61 - (0)2 - 9519 - 0600 FAX : 852 - 21913990


AUSTRALIA THAILAND SINGAPORE
QualiFi Pty Ltd, MRZ STANDARD CO., LTD WO KEE HONG DISTRIBUTION PTE LTD
24 LIONEL ROAD, 746 - 754 MAHACHAI ROAD., 130 JOO SENG ROAD
MT. WAVERLEY VIC 3149 WANGBURAPAPIROM, PHRANAKORN, #03-02 OLIVINE BUILDING
AUSTRALIA BANGKOK, 10200 THAILAND SINGAPORE 368357
PHONE : +61 - (0)3 - 9543 - 1522 PHONE : +66 - 2 - 222 9181 PHONE : +65 6858 5535 / +65 6381 8621
FAX : +61 - (0)3 - 9543 - 3677 FAX : +66 - 2 - 224 6795 FAX : +65 6858 6078


NEW ZEALAND TAIWAN MALAYSIA
WILDASH AUDIO SYSTEMS NZ PAI- YUING CO., LTD. WO KEE HONG ELECTRONICS SDN. BHD.
14 MALVERN ROAD MT ALBERT 6 TH FL NO, 148 SUNG KIANG ROAD, 2ND FLOOR BANGUNAN INFINITE CENTRE
AUCKLAND NEW ZEALAND TAIPEI, 10429, TAIWAN R.O.C. LOT 1, JALAN 13/6, 46200 PETALING JAYA
PHONE : +64 - 9 - 8451958 PHONE : +886 - 2 - 25221304 SELANGOR DARUL EHSAN, MALAYSIA
FAX : +64 - 9 - 8463554 FAX : +886 - 2 - 25630415 PHONE : +60 - 3 - 7954 8088
FAX : +60 - 3 - 7954 7088


JAPAN Technical KOREA
MARANTZ JAPAN, INC. MK ENTERPRISES LTD.
35- 1, 7- CHOME, SAGAMIONO ROOM 604/605, ELECTRO-OFFICETEL, 16-58,
SAGAMIHARA - SHI, KANAGAWA 3GA, HANGANG-RO, YONGSAN-KU, SEOUL
JAPAN 228-8505 KOREA
PHONE : +81 42 748 1013 PHONE : +822 - 3232 - 155
FAX : +81 42 741 9190 FAX : +822 - 3232 - 154




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.
030307MIT
1. TECHNICAL SPECIFICATIONS
FM TUNER SECTION [SR7400] VIDEO
Frequency Range.............................................87.5 - 108.0 MHz Television Format ....................................................... NTSC/PAL
Usable Sensitivity ........................................IHF 1.8 µV/16.4 dBf Input Level/Impedance ....................................... 1 Vp-p/75 ohms
Signal to Noise Ratio............................... Mono/Stereo 75/70 dB Output Level/Impedance .................................... 1 Vp-p/75 ohms
Distortion.................................................Mono/Stereo 0.2/0.3 % Video Frequency Response ....................5 Hz to 8 MHz (- 1 dB)
Stereo Separation ....................................................1 kHz 45 dB Video Frequency (Component) ..............5 Hz to 80 MHz (- 1 dB)
Alternate Channel Selectivity ............................± 300 kHz 60 dB S/N ..................................................................................... 60 dB
Image Rejection ....................................................98 MHz 70 dB GENERAL
Tuner Output Level ....................... 1 kHz, ± 75 kHz Dev 800 mV
Power Requirement.................................AC 100 V 50/60 Hz [/F]
AM TUNER SECTION [SR7400] ......................................AC 220 V 50 Hz [/K]
Frequency Range...................................531 - 1602 kHz [/K/N/S] ...................................... AC 110 V 60 Hz [/L]
...................................... 520 - 1710 kHz [/L/U] .................................. AC 230 V 50 Hz [/N/S]
Signal to Noise Ratio.......................................................... 50 dB ..................................... AC 120 V 60 Hz [/U]
Usable Sensitivity..................................................... Loop 400µV Power Consumption .......................................................... 540 W
Distortion............................................... 1 kHz, 30 % Mod. 0.5 % Weight ............................................................ 14.0 kg (30.9 Ibs)
Selectivity ............................................................± 20 kHz 70 dB ACCESSORIES
AUDIO SECTION Remote Control Unit RC1400 ................................................... 1
Power Output (20 Hz - 20 kHz/THD=0.08%) AAA-size batteries.................................................................... 3
Front L&R................................................8 ohms 105 W / Ch FM Antenna [SR7400]............................................................... 1
Center .....................................................8 ohms 105 W / Ch FM Antenna Converter [SR7400].............................................. 1
Surround L&R .........................................8 ohms 105 W / Ch AM Loop Antenna [SR7400] ..................................................... 1
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)




1
The relation between the selected surround mode and the input signal
The surround mode is selected with the surround mode buttons on SR7400/PS7400 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;
SR7400
Output Channel Front information display
Surround Mode Input Signal Decoding SL SBL
L/R C SR SBR SubW Signal format indicators Channel status
AUTO Dolby Surr. EX Dolby Digital EX O O O O O 2 DIGITAL L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Dolby Digital 5.1 O O O - O 2 DIGITAL L, C, R, SL, SR, LFE
Dolby D(2ch) Dolby Digital 2.0 O - - - - 2 DIGITAL L, R
Dolby D (2ch Surr) Pro Logic IIx movie O O O O - 2 DIGITAL , 2 SURROUND L, R, S
DTS-ES DTS-ES O O O O O dts , ES L, C, R, SL, SR, S, LFE
DTS 96/24 DTS 96/24 O O O - O dts 96/24 L, C, R, SL, SR, LFE
DTS (5.1ch) DTS 5.1 O O O - O dts L, C, R, SL, SR, LFE
PCM(Audio) PCM (Stereo) O - - - - PCM L, R
PCM 96kHz PCM (96kHz Stereo) O - - - - PCM L, R
Analog Stereo O - - - - ANALOG -
S-DIRECT Dolby D Surr. EX Dolby Digital EX O O O O O 2 DIGITAL L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Dolby Digital 5.1 O O O - O 2 DIGITAL L, C, R, SL, SR, LFE
Dolby D (2ch) Dolby Digital 2.0 O - - - - 2 DIGITAL L, R
Dolby D (2ch Surr) Pro Logic IIx movie O O O O - 2 DIGITAL , 2 SURROUND L, R, S
DTS-ES DTS-ES O O O O O dts , ES L, C, R, SL, SR, S, LFE
DTS 96/24 DTS 96/24 O O O - O dts 96/24 L, C, R, SL, SR, LFE
DTS (5.1ch) DTS 5.1 O O O - O dts L, C, R, SL, SR, LFE
PCM (Audio) PCM (Stereo) O - - - - PCM L, R
PCM 96kHz PCM (96kHz Stereo) O - - - - PCM L, R
Analog Stereo O - - - - ANALOG -
EX/ES Dolby D Surr. EX Dolby Digital EX O O O O O 2 DIGITAL L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Dolby Digital EX O O O O O 2 DIGITAL L, C, R, SL, SR, LFE
DTS-ES DTS-ES O O O O O dts , ES L, C, R, SL, SR, S, LFE
DTS(5.1ch) DTS-ES O O O O O dts L, C, R, SL, SR, LFE
DOLBY Dolby D Surr. EX Dolby Digital 5.1 O O O O O 2 DIGITAL L, C, R, SL, SR, S, LFE
(PL IIx movie) Dolby D (5.1ch) Dolby Digital 5.1 O O O O O 2 DIGITAL L, C, R, SL, SR, LFE
(PL IIx music) Dolby D (2ch) Pro Logic IIx O O O O - 2 DIGITAL L, R
(PL IIx game) Dolby D (2ch Surr) Pro Logic IIx O O O O - 2 DIGITAL , 2 SURROUND L, R, S
(Pro Logic) PCM (Audio) Pro Logic IIx O O O O - PCM L, R
Analog Pro Logic IIx O O O O - ANALOG -
DTS DTS-ES DTS 5.1 O O O - O dts , ES L, C, R, SL, SR, S, LFE
(Neo:6 Cinema) DTS 96/24 DTS 96/24 O O O - O dts 96/24 L, C, R, SL, SR, LFE
(Neo:6 Music) DTS (5.1ch) DTS 5.1 O O O - O dts L, C, R, SL, SR, LFE
PCM (Audio) Neo:6 O O O O - PCM L, R
Analog Neo:6 O O O O - ANALOG -
Dolby D (2ch) Neo:6 O O O O - 2 DIGITAL L, R
Dolby D (2ch Surr) Neo:6 O O O O - 2 DIGITAL , 2 SURROUND L, R, S
CS II Cinema PCM (Audio) CS II O O O O O PCM L, R
CS II Music Analog CS II O O O O O ANALOG -
CS II Mono Dolby D (2ch) CS II O O O O O 2 DIGITAL L, R
Dolby D (2ch Surr) CS II O O O O O 2 DIGITAL , 2 SURROUND L, R, S
STEREO Dolby Surr. EX Stereo O - - - O 2 DIGITAL L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Stereo O - - - O 2 DIGITAL L, C, R, SL, SR, LFE
Dolby D (2ch) Stereo O - - - - 2 DIGITAL L, R
Dolby D (2ch Surr) Stereo O - - - - 2DIGITAL , 2 SURROUND L, R, S
DTS-ES Stereo O - - - O dts , ES L, C, R, SL, SR, S, LFE
DTS 96/24 Stereo O - - - O dts 96/24 L, C, R, SL, SR, LFE
DTS (5.1ch) Stereo O - - - O dts L, C, R, SL, SR, LFE
PCM (Audio) Stereo O - - - - PCM L, R
PCM 96kHz Stereo O - - - - PCM L, R
Analog Stereo O - - - - ANALOG -
Virtual Dolby Surr. EX Virtual O - - - - 2 DIGITAL L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Virtual O - - - - 2 DIGITAL L, C, R, SL, SR, LFE
Dolby D (2ch) Virtual O - - - - 2 DIGITAL L, R
Dolby D (2ch Surr) Virtual O - - - - 2 DIGITAL , 2 SURROUND L, R, S
DTS-ES Virtual O - - - - dts , ES L, C, R, SL, SR, S, LFE
DTS (5.1ch) Virtual O - - - - dts L, C, R, SL, SR, LFE
PCM (Audio) Virtual O - - - - PCM L, R
Analog Virtual O - - - - ANALOG -
Multi Ch. Dolby Surr. EX Dolby Digital EX O O O O O 2 DIGITAL L, C, R, SL, SR, S, LFE
Stereo Dolby D (5.1ch) Dolby Digital 5.1 O O O - O 2 DIGITAL L, C, R, SL, SR, LFE
Dolby D (2ch) Multi Channel Stereo O O O O - 2 DIGITAL L, R
Dolby D (2ch Surr) Multi Channel Stereo O O O O - 2 DIGITAL , 2 SURROUND L, R, S
DTS-ES DTS-ES O O O O O dts , ES L, C, R, SL, SR, S, LFE
DTS (5.1ch) DTS 5.1 O O O - O dts L, C, R, SL, SR, LFE
PCM (Audio) Multi Channel Stereo O O O O - PCM L, R
Analog Multi Channel Stereo O O O O - ANALOG -


Note:
· Dolby Digital (2 ch: Lt/Rt): signal with Dolby
Surround flag Speakers are full set.
· No sound outputs from the surround speaker,
center speaker and subwoofer if the DVD disc has
no surround data.


Abbreviations
L/R : Front speakers
C: Center speaker
SL/SR : Surround speakers
SBL/SBR : Surround Back speakers
SubW : Sub woofer speaker




2
PS7400

SBL
SR SBR
AUTO Dolby Surr. EX Dolby Digital EX O O O O O 2 DIGITAL L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Dolby Digital 5.1 O O O - O 2 DIGITAL L, C, R, SL, SR, LFE
Dolby D(2ch) Dolby Digital 2.0 O - - - - 2 DIGITAL L, R
Dolby D (2ch Surr) Pro Logic IIx movie O O O O 2 DIGITAL , 2 SURROUND L, R, S
DTS-ES
DTS 96/24
DTS-ES
DTS 96/24
O
O
O
O
O
O -
*
O O
O
dts, ES
dts 96/24
L, C, R, SL, SR, S, LFE
L, C, R, SL, SR, LFE
DTS (5.1ch) DTS 5.1 O O O - O dts L, C, R, SL, SR, LFE
PCM(Audio) PCM (Stereo) O - - - - PCM L, R
PCM 96kHz PCM (96kHz Stereo) O - - - - PCM L, R
AAC (5.1ch) AAC 5.1 O O O - O AAC L, C, R, SL, SR, LFE
AAC (2ch) AAC 2.0 O - - - - AAC L, R
Analog Stereo O - - - - ANALOG -
S-DIRECT Dolby D Surr. EX Dolby Digital EX O O O O O 2 DIGITAL L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Dolby Digital 5.1 O O O - O 2 DIGITAL L, C, R, SL, SR, LFE
Dolby D (2ch) Dolby Digital 2.0 O - - - - 2 DIGITAL L, R
Dolby D (2ch Surr) Pro Logic IIx movie O O O O 2 DIGITAL , 2 SURROUND L, R, S
DTS-ES
DTS 96/24
DTS-ES
DTS 96/24
O
O
O
O
O
O -
*
O O
O
dts, ES
dts 96/24
L, C, R, SL, SR, S, LFE
L, C, R, SL, SR, LFE
DTS (5.1ch) DTS 5.1 O O O - O dts L, C, R, SL, SR, LFE
PCM (Audio) PCM (Stereo) O - - - - PCM L, R
PCM 96kHz PCM (96kHz Stereo) O - - - - PCM L, R
AAC (5.1ch) AAC 5.1 O O O - O AAC L, C, R, SL, SR, LFE
AAC (2ch) AAC 2.0 O - - - - AAC L, R
Analog Stereo O - - - - ANALOG -
EX/ES Dolby D Surr. EX Dolby Digital EX O O O O O 2 DIGITAL L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Dolby Digital EX O O O O O 2 DIGITAL L, C, R, SL, SR, LFE
DTS-ES DTS-ES O O O O O dts, ES L, C, R, SL, SR, S, LFE
DTS(5.1ch) DTS-ES O O O O O dts L, C, R, SL, SR, LFE
AAC (5.1ch) AAC EX O O O - O AAC L, C, R, SL, SR, LFE
DOLBY Dolby D Surr. EX Dolby Digital 5.1 O O O O O 2 DIGITAL L, C, R, SL, SR, S, LFE
(PL IIx movie) Dolby D (5.1ch) Dolby Digital 5.1 O O O O O 2 DIGITAL L, C, R, SL, SR, LFE
(PL IIx music) Dolby D (2ch) Pro Logic IIx O O O O 2 DIGITAL L, R
(PL IIx game)
(Pro Logic)
Dolby D (2ch Surr)
PCM (Audio)
Pro Logic IIx
Pro Logic IIx
O
O
O
O
O
O
O
O
*
*
2 DIGITAL, 2 SURROUND
PCM
L, R, S
L, R
AAC (2ch)
Analog
Pro Logic IIx
Pro Logic IIx
O
O
O
O
O
O
O
O
*
*
AAC
ANALOG
L, R
-
DTS
(Neo:6 Cinema)
DTS-ES
DTS 96/24
DTS 5.1
DTS 96/24
O
O
O
O
O
O
-
-
*O
O
dts, ES
dts 96/24
L, C, R, SL, SR, S, LFE
L, C, R, SL, SR, LFE
(Neo:6 Music) DTS (5.1ch) DTS 5.1 O O O - O dts L, C, R, SL, SR, LFE
PCM (Audio) Neo:6 O O O O PCM L, R
Analog
Dolby D (2ch)
Neo:6
Neo:6
O
O
O
O
O
O
O
O
*
*
ANALOG
2 DIGITAL
-
L, R
Dolby D (2ch Surr)
AAC (2ch)
Neo:6
Neo:6
O
O
O
O
O
O
O
O
*
*
2 DIGITAL, 2 SURROUND
AAC
L, R, S
L, R
CS II Cinema
CS II Music
PCM (Audio)
Analog
CS II
CS II
O
O
O
O
O
O
*
O O
O O
PCM
ANALOG
L, R
-
CS II Mono Dolby D (2ch) CS II O O O O O 2 DIGITAL L, R
Dolby D (2ch Surr) CS II O O O O O 2 DIGITAL, 2 SURROUND L, R, S
AAC (2ch) CS II O O O O O AAC L, R
STEREO Dolby Surr. EX Stereo O - - - O 2 DIGITAL L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Stereo O - - - O 2 DIGITAL L, C, R, SL, SR, LFE
Dolby D (2ch) Stereo O - - - 2 DIGITAL L, R
Dolby D (2ch Surr)
DTS-ES
Stereo
Stereo
O
O
-
-
-
-
-
-
*
*O
2DIGITAL, 2 SURROUND
dts, ES
L, R, S
L, C, R, SL, SR, S, LFE
DTS 96/24 Stereo O - - - O dts 96/24 L, C, R, SL, SR, LFE
DTS (5.1ch) Stereo O - - - O dts L, C, R, SL, SR, LFE
PCM (Audio) Stereo O - - - PCM L, R
PCM 96kHz
AAC (5.1ch)
Stereo
Stereo
O
O
-
-
-
-
-
-
*
*O
PCM
AAC
L, R
L, C, R, SL, SR, LFE
AAC (2ch) Stereo O - - - AAC L, R

Virtual
Analog
Dolby Surr. EX
Stereo
Virtual
O
O
-
-
-
-
-
-
*
*-
ANALOG
2 DIGITAL
-
L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Virtual O - - - - 2 DIGITAL L, C, R, SL, SR, LFE
Dolby D (2ch) Virtual O - - - - 2 DIGITAL L, R
Dolby D (2ch Surr) Virtual O - - - - 2 DIGITAL, 2 SURROUND L, R, S
DTS-ES Virtual O - - - - dts, ES L, C, R, SL, SR, S, LFE
DTS (5.1ch) Virtual O - - - - dts L, C, R, SL, SR, LFE
PCM (Audio) Virtual O - - - - PCM L, R
AAC (5.1ch) Virtual O - - - - AAC L, C, R, SL, SR, LFE
AAC (2ch) Virtual O - - - - AAC L, R
Analog Virtual O - - - - ANALOG -
Multi Ch. Dolby Surr. EX Dolby Digital EX O O O O O 2 DIGITAL L, C, R, SL, SR, S, LFE
Stereo Dolby D (5.1ch) Dolby Digital 5.1 O O O - O 2 DIGITAL L, C, R, SL, SR, LFE
Dolby D (2ch) Multi Channel Stereo O O O O 2 DIGITAL L, R
Dolby D (2ch Surr)
DTS-ES
Multi Channel Stereo
DTS-ES
O
O
O
O
O
O
O *
*
O O
2 DIGITAL, 2 SURROUND
dts, ES
L, R, S
L, C, R, SL, SR, S, LFE
DTS (5.1ch) DTS 5.1 O O O - O dts L, C, R, SL, SR, LFE
PCM (Audio) Multi Channel Stereo O O O O PCM L, R
AAC (5.1ch)
AAC (2ch)
AAC 5.1
Multi Channel
O
O
O
O
O
O
-
O
*O AAC
AAC
L, C, R, SL, SR, LFE
L, R
Analog Multi Channel Stereo O O O O *
*
ANALOG -




*




3
2. TECHNICAL DESCRIPTION

· Neo:6 offers a music mode to expand stereo
nonmatrix recordings into the five- or six-
channel layout, in a way which does not diminish
DTS was introduced in 1994 to provide 5.1 the subtlety and integrity of the original stereo
channels of discrete digital audio into home theater recording.
systems.
DTS brings you premium quality discrete
multichannel digital sound to both movies and
music.
DTS is a multichannel sound system designed to
create full range digital sound reproduction.
The no compromise DTS digital process sets the DTS-ES Extended Surround is a new multichannel
standard of quality for cinema sound by delivering digital signal format developed by Digital Theater
an exact copy of the studio master recordings to Systems Inc. While offering high compatibility with
neighborhood and home theaters. the conventional DTS Digital Surround format,
Now, every moviegoer can hear the sound exactly DTS-ES Extended Surround greatly improves the
as the moviemaker intended. 360-degree surround impression and space
DTS can be enjoyed in the home for either movies expression thanks to further expanded surround
or music on of DVD's, LD's, and CD's. signals. This format has been used professionally
in movie theaters since 1999.
"DTS" and "DTS Digital Surround" are registered In addition to the 5.1 surround channels (FL, FR, C,
trademarks of Digital Theater Systems, Inc. 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 different surround signal recording
methods, as DTS-ES Discrete 6.1 and DTS-ES
The advantages of discrete multichannel systems Matrix 6.1.
over matrix are well known.
But even in homes equipped for discrete "DTS", "DTS-ES Extended Surround" and "Neo:6"
multichannel, there remains a need for high-quality are trademarks of Digital Theater Systems, Inc.
matrix decoding. This is because of the large
library of matrix surround motion pictures 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 The stereo CD is a 16-bit medium with sampling at
two-channel matrix stereo material. It is better than 44.1 kHz. Professional audio has been 20- or 24-
a simple matrix in that it includes steering logic to bit for some time, and there is increasing interest in
improve separation, but because of its mono, higher sampling rates both for recording and for
band-limited surround it can be disappointing to delivery into the home. Greater bit depths provide
users accustomed to discrete multichannel. extended dynamic range. Higher sampling rates
allow wider frequency response and the use of
Neo:6 offers several important improvements as anti-alias and reconstruction filters with more
follow, favorable aural characteristics.
· Neo:6 provides up to six full-band channels of
matrix decoding from stereo matrix material. DTS 96/24 allows for 5.1channel sound tracks to
Users with 6.1 and 5.1 systems will derive six be encoded at a rate of 96kHz/24bits on DVD-
and five separate channels, respectively, Video titles.
corresponding to the standard home-theater When DVD-video appeared, it became possible to
speaker layouts. deliver 24-bit, 96 kHz audio into the home, but only
in two channels, and with serious limitations on
· Neo:6 technology allows various sound picture. This capability has had little use.
elements within a channel or channels to be DVD-audio allows 96/24 in six channels, but a new
steered separately, and in a way which follows player is needed, and only analog outputs are
naturally from the original presentation. provided, necessitating the use of the D/A
converters and analog electronics provided in the
player.




4
DTS 96/24 offers the following: Dolby Pro Logic IIx is fully compatible with Dolby
1. Sound quality transparent to the original 96/24 Surround Pro Logic technology and can optimally
master. decode the thousands of commercially available
Dolby Surround encoded video cassettes and
2. Full backward compatibility with all existing
television programs with enhanced depth and
decoders. (Existing decoders will output a 48
spatiality. It can also process any high-quality
kHz signal)
stereo or Advanced Resolution 5.1-channel music
3. No new player required: DTS 96/24 can be content into a seamless 6.1- or 7.1-channel
carried on DVD-video, or in the video zone of listening experience.
DVD-audio, accessible to all DVD players.
4. 96/24 5.1-channel sound with full-quality full- Manufactured under license from Dolby Laboratories.
motion video, for music programs and motion "Dolby", "Pro Logic", and the double-D symbol are
picture soundtracks on DVD-video. trademarks of Dolby Laboratories.




Circle Surround II (CS-II) is a powerful and
Dolby Digital identifies the use of Dolby Digital versatile multichannel technology. CS- II is
audio coding for such consumer formats as DVD designed to enable up to 6.1 multichannel surround
and DTV. As with film sound, Dolby Digital can sound playback from mono, stereo, CS encoded
provide up to five full-range channels for left, sources and other matrix encoded sources. In all
center, and right screen channels, independent left cases the decoder extends it into 6 channels of
and right surround channels, and a sixth ( ".1") surround audio and a LFE/subwoofer signal. The
channel for low-frequency effects. CS-II decoder creates a listening environment that
places the listener "inside" music performances
Dolby Surround Pro Logic II is an improved matrix and dramatically improves both hi-fi audio
decoding technology that provides better spatiality conventional surround-encoded video material.
and directionality on Dolby Surround program CS-II provides composite stereo rear channels to
material; provides a convincing three-dimensional greatly improve separation and image positioning ­
soundfield on conventional stereo music adding a heightened sense of realism to both audio
recordings; and is ideally suited to bring the and A/V productions.
surround experience to automotive sound. While CS-II is packed with other useful feature like dialog
conventional surround programming is fully clarity (SRS Dialog) for movies and cinema-like
compatible with Dolby Surround Pro Logic II bass enrichment (TruBass). CS-II can enable the
decoders, soundtracks will be able to be encoded dialog to become clearer and more discernable in
specifically to take full advantage of Pro Logic II movies and it enables the bass frequencies
playback, including separate left and right contained in the original programming to more
surround channels. (Such material is also closely achieve low frequencies ­ overcoming the
compatible with conventional Pro Logic decoders.) low frequency limitations of the speakers by full
octave.
Dolby Digital EX creates six full-bandwidth output
channels from 5.1-channel sources. This is done Circle Surround II, Dialog Clarity, TruBass, SRS
using a matrix decoder that derives three surround and symbol are trademarks of SRS Labs, Inc.
channels from the two in the original recording. Circle Surround II, Dialog Clarity and TruBass
For best results, Dolby Digital EX should be used technology are incorporated under license from
with movies soundtracks recorded with Dolby SRS Labs, Inc.
Digital Surround EX.

About Dolby Pro Logic IIx
Dolby Pro Logic IIx technology delivers a natural
and immersing 7.1-channel listening experience to
the home theater environment. A product of
Dolby's expertise in surround sound and matrix
decoding technologies, Dolby Pro Logic IIx is a
complete surround sound solution that maximizes
the entertainment experience from stereo as well
as 5.1-channel encoded sources.




5
Personal notes:




6
3. WIRING DIAGRAM
SR only PS only




INLET




SR only




PS only




F, K, N, S only L, U only




7 8
4. BLOCK DIAGRAM




9 10
5. SCHEMATIC DIAGRAM

INPUT PCB




11 12
CONVERTER PCB




13 14
DSP PCB - 1/2




15 16
VIDEO PCB




17 18
ENCODER PCB FRONT PCB ST-BY PCB




RC232C PCB




H/P PCB




PUSH S/W PCB




INLET PCB




19 20
AMP PCB




21 22
COMPONENT PCB




SBLR PCB




PREOUT PCB




23 24
POWER PCB




25 26
DSP PCB - 2/2




27 28
6. PARTS LOCATION DSP A
IC11 IC12 Q101 - Q103 IC15 IC14 QC12 QC11 IC23 IC24 - IC27
Q105 - Q108 IC13 IC17 IC18 IC19 IC22
IC33 IC31 IC32 IC21 IC29
Q109 - Q112 IC34 QC10 IC30 IC28


RS232C
IC91




ENCODER & TACT
Q806 Q802




29 30
ST-BY
Q805
DSP B IC84 IC85 Q804
IC20 IC16




31 32
FRONT
IC81 Q803 Q801 IC12 IC83




H/P PUSH SW INLET TUNER [PS only]




33 34
AMP




Q719 Q721 Q620 Q622 Q619 Q621 Q520 Q522 Q519 Q521 Q420 Q422 Q419 Q421
Q723 Q624 Q623 Q524 Q523 Q424 Q423
Q715 Q707 Q713 Q709 Q711 Q717 Q615 Q607 Q613 Q609 Q611 Q617 Q515 Q507 Q513 Q509 Q511 Q517 Q415 Q407 Q413 Q409 Q411 Q417
Q616 Q608 Q614 Q610 Q612 Q618