Denon DN-A7100 - AV Surround Preamplifier User manual

D&M Holdings Inc.
TOKYO, JAPAN
PROFESSIONAL BUSINESS COMPANY
MZ2007.02.VER1
•
For purposes of improvement, specifications and
design are subject to change without notice.
•
Please use this service manual with referring to the
operating instructions without fail.
•
Some illustrations using in this service manual are
slightly different from the actual set.
サービスをおこなう前に、このサービスマニュアルを
必ずお読みください。本機は、火災、感電、けがなど
に対する安全性を確保するために、さまざまな配慮を
おこなっており、また法的には「電気用品安全法」に
もとづき、所定の許可を得て製造されております。
従ってサービスをおこなう際は、これらの安全性が維
持されるよう、このサービスマニュアルに記載されて
いる注意事項を必ずお守りください。
注意
● 本機の仕様は性能改良のため、予告なく変更すること
があります。
● 補修用性能部品の保有期間は、製造打切後8年で す 。
● 修理の際は、必ず取扱説明書を参照の上、作業を行っ
てください。
● 本文中に使用しているイラストは、説明の都合上現物
と多少異なる場合があります。
SERVICE MANUAL
AV SURROUND PREAMPLIFIER
DN-A7100
MODEL
For U.S.A.,Canada,Europe
Ver. 1

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.
TABLE OF CONTENTS
SECTION PAGE
1. TECHNICAL SPECIFICATIONS ........................................................................................... 3
2. TECHNICAL DESCRIPTION ............................................................................................... 5
3. SERVICE MODE ................................................................................................................. 8
4. SYSTEM ERROR ................................................................................................................10
5. UPDATE FIRMWARE .........................................................................................................11
6. WIRING DIAGRAM .............................................................................................................19
7. BLOCK DIAGRAM ..............................................................................................................21
8. SCHEMATIC DIAGRAM .................................................................................................... 23
9. PARTS LOCATION ............................................................................................................39
10. EXPLODED VIEW AND PARTS LIST ............................................................................... 57
11. MICROPROCESSOR AND IC DATA.................................................................................. 67
12. ELECTRICAL PARTS LIST ................................................................................................ 93
13. ABOUT REPLACE THE MICROPROCESSOR WITH A NEW ONE .............................133
E3 Only

1
Please heed the points listed below during servicing and inspection.
◎Heed the cautions!
Spots requiring particular attention when servicing, such as
the cabinet, parts, chassis, etc., have cautions indicated on
labels or seals. Be sure to heed these cautions and the cau-
tions indicated in the handling instructions.
◎Caution concerning electric shock!
(1) An AC voltage is impressed on this set, so touching inter-
nal metal parts when the set is energized could cause
electric shock. Take care to avoid electric shock, by for ex-
ample using an isolating transformer and gloves when
servicing while the set is energized, unplugging the power
cord when replacing parts, etc.
(2)There are high voltage parts inside. Handle with extra care
when the set is energized.
◎ Caution concerning disassembly and assembly!
Though great care is taken when manufacturing parts from
sheet metal, there may in some rare cases be burrs on the
edges of parts which could cause injury if fingers are moved
across them. Use gloves to protect your hands.
◎Only use designated parts!
The set's parts have specific safety properties (fire resis-
tance, voltage resistance, etc.). For replacement parts, be
sure to use parts which have the same properties. In particu-
lar, for the important safety parts that are marked ! on wiring
diagrams and parts lists, be sure to use the designated parts.
◎Be sure to mount parts and arrange the
wires as they were originally!
For safety reasons, some parts use tape, tubes or other insu-
lating materials, and some parts are mounted away from the
surface of printed circuit boards. Care is also taken with the
positions of the wires inside and clamps are used to keep
wires away from heating and high voltage parts, so be sure to
set everything back as it was originally.
◎Inspect for safety after servicing!
Check that all screws, parts and wires removed or discon-
nected for servicing have been put back in their original posi-
tions, inspect that no parts around the area that has been
serviced have been negatively affected, conduct an insulation
check on the external metal connectors and between the
blades of the power plug, and otherwise check that safety is
ensured.
(Insulation check procedure)
Unplug the power cord from the power outlet, disconnect the
antenna, plugs, etc., and turn the power switch on. Using a
500V insulation resistance tester, check that the insulation re-
sistance between the terminals of the power plug and the ex-
ternally exposed metal parts (antenna terminal, headphones
terminal, microphone terminal, input terminal, etc.) is 1MΩor
greater. If it is less, the set must be inspected and repaired.
Concerning important safety parts
Many of the electric and structural parts used in the set have
special safety properties. In most cases these properties are
difficult to distinguish by sight, and using replacement parts
with higher ratings (rated power and withstand voltage) does
not necessarily guarantee that safety performance will be pre-
served. Parts with safety properties are indicated as shown
below on the wiring diagrams and parts lists is this service
manual. Be sure to replace them with parts with the designat-
ed part number.
(1) Schematic diagrams ... Indicated by the ! mark.
(2) Parts lists ... Indicated by the ! mark.
Using parts other than the designated parts
could result in electric shock, fires or other
dangerous situations.
SAFETY PRECAUTIONS
The following check should be performed for the continued protection of the customer and service technician.
LEAKAGE CURRENT CHECK
Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis
resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power
cord is less than 460 kohms, the unit is defective.
CAUTION
CAUTION

2
サービス、点検時にはつぎのことにご注意願います。
◎注意事項をお守りください！
サービスのとき特に注意を必要とする個所についてはキャ
ビネット、部品、シャーシなどにラベルや捺印で注意事項を
表示しています。これらの注意書きおよび取扱説明書などの
注意事項を必ずお守りください。
◎感電に注意！
(1) このセットは、交流電圧が印加されていますので通電時
に内部金属部に触れると感電することがあります。従っ
て通電サービス時には、絶縁トランスの使用や手袋の着
用、部品交換には、電源プラグを抜くなどして感電にご
注意ください。
(2) 内部には高電圧の部分がありますので、通電時の取扱に
は十分ご注意ください。
◎分解、組み立て作業時のご注意！
板金部品の端面の『バリ』は、部品製造時に充分管理をして
おりますが、板金端面は鋭利となっている箇所が有りますの
で、部品端面に触れたまま指を動かすとまれに怪我をする場
合がありますので十分注意して作業して下さい。手の保護の
ために手袋を着用してください。
◎指定部品の使用！
セットの部品は難燃性や耐電圧など安全上の特性を持った
ものとなっています。従って交換部品は、使用されていたも
のと同じ特性の部品を使用してください。特に配線図、部品
表に!印で指定されている安全上重要な部品は必ず指定の
ものをご使用ください。
◎部品の取付けや配線の引きまわしは、
元どおりに！
安全上、テープやチューブなどの絶縁材料を使用したり、プ
リント基板から浮かして取付けた部品があります。また内部
配線は引きまわしやクランパーによって発熱部品や高圧部
品に接近しないように配慮されていますので、これらは必ず
元どおりにしてください。
◎サービス後は安全点検を！
サービスのために取り外したねじ、部品、配線などが元どお
りになっているか、またサービスした個所の周辺を劣化させ
てしまったところがないかなどを点検し、外部金属端子部
と、電源プラグの刃の間の絶縁チェックをおこなうなど、安
全性が確保されていることを確認してください。
（絶縁チェックの方法）
電源コンセントから電源プラグを抜き、アンテナやプラグな
どを外し、電源スイッチを入れます。500V 絶縁抵抗計を用
いて、電源プラグのそれぞれの端子と外部露出金属部［アン
テナ端子、ヘッドホン端子マイク端子、入力端子など］との
間で、絶縁抵抗値が１ MΩ 以上であること、この値以下の
ときはセットの点検修理が必要です。
安全上重要な部品について
本機に使用している多くの電気部品、および機構部品は安全
上、特別な特性を持っています。この特性はほとんどの場合、
外観では判別つきにくく、またもとの部品より高い定格（定
格電力、耐圧）を持ったものを使用しても安全性が維持され
るとは、限りません。安全上の特性を持った部品は、この
サービスマニュアルの配線図、部品表につぎのように表示し
ていますので必ず指定されている部品番号のものを使用願
います。
(1) 配線図…!マークで表示しています。
(2) 部品表…!マークで表示しています。
指定された部品と異なるものを使用した場合に
は、感電、火災などの危険を生じる恐れがあり
ます。
注 意
注 意

3
140.8 mm
(5-1/2 ins.)
8.2 mm
(5/16 ins.)
132.6 mm
(5-1/4 ins.)
482.6 mm (19 ins.)
18 mm
(3/4 ins.)
11 mm
(7/16 ins.)
324.85 mm
(12-3/4 ins.)
353.85 mm
(13-7/8 ins.)
FM TUNER SECTION
Frequency Range ....................... 87.5 - 108.0 MHz [ E2, E3 ]
Usable Sensitivity .................................. IHF 1.8 µV/16.4 dBf
Signal to Noise Ratio..........................Mono/Stereo 75/70 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, ± 75 kHz Dev 800 mV
AM TUNER SECTION
Frequency Range ................................. 531 - 1602 kHz [ E2 ]
................................. 520 - 1710 kHz [ E3 ]
Signal to Noise Ratio.................................................... 50 dB
Usable Sensitivity .......................................... Loop 400mV/m
Distortion ........................................ 400Hz, 30 % Mod. 0.5 %
Selectivity ...................................................... ± 20 kHz 70 dB
AUDIO SECTION
Input Sensitivity/Impedance (volume at 0dB)
RCA connectors.................................. 220 mV/ 20 kohms
XLR connectors
(+4 dBu) .........................................440 mV/ 20 kohms
(-10 dBV) .......................................110 mV/ 20 kohms
Output Level (volume at 0dB)
(+4 dBu) ..............................................300 mVrms typ.
(-10 dBV) ..............................................75 mVrms typ.
Signal to Noise Ratio
Analog Input / Pure Direct....................................... 98 dB
Frequency Response
Analog Input / Pure Direct........... 10 Hz - 90 kHz (± 3 dB)
THD .............................................................................0.03 %
Cross Talk......................................................80 dB (at 1kHz)
VIDEO SECTION
Television Format ..................................................NTSC/PAL
Input Level/Impedance ..................................1 Vp-p/75 ohms
Output Level/Impedance................................1 Vp-p/75 ohms
Video Frequency Response ..............5 Hz to 8 MHz (- 1 dB)
Video Frequency (Component) ....... 5 Hz to 80 MHz (- 1 dB)
S/N................................................................................ 60 dB
GENERAL
Power Requirement ............................. AC 230 V 50 Hz [ E2 ]
.............................AC 120 V 60 Hz [ E3 ]
Power Consumption ............................................. 40 W [ E2 ]
............................................. 34 W [ E3 ]
Weight ..................................................... 7.66 kg (16.85 lbs)
ACCESSORIES
Remote Control Unit RC-1065..............................................1
AAA-size batteries............................................................... 2
FM Antenna..........................................................................1
AM Loop Antenna.................................................................1
AC Power Cord.....................................................................1
1. TECHNICAL SPECIFICATIONS
DIMENSIONS

4
Surround
Mode Input Signal Decoding
Output Channel Front information display
L/R C SL
SR
SBL
SBR
SubW
Signal format indicators Channel status
AUTO Dolby Surr. EX Dolby Digital EX OOOOO
2DIGITAL L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Dolby Digital 5.1 OOO -O2DIGITAL L, C, R, SL, SR, LFE
Dolby D(2ch) Dolby Digital 2.0 O----
2DIGITAL L, R
Dolby D (2ch Surr) Pro Logic IIx movie OOOO -2DIGITAL , 2SURROUND L, R, S
DTS-ES DTS-ES OOOOOdts, ES L, C, R, SL, SR, S, LFE
DTS 96/24 DTS 96/24 OOO -Odts 96/24 L, C, R, SL, SR, LFE
DTS (5.1ch) DTS 5.1 OOO -Odts L, C, R, SL, SR, LFE
Multi Ch-PCM Multi Ch-PCM OOO -OPCM L, C, R, SL, SR, LFE
Multi Ch-PCM 96kHz Multi Ch-PCM 96kHz OOO -OPCM L, C, R, SL, SR, LFE
PCM(Audio) PCM (Stereo) O----PCM L,R
PCM 96kHz PCM (96kHz Stereo) O----PCM L,R
HDCD PCM (Stereo) O- - - - PCM HDCD L, R
Analog Stereo O- - - - ANALOG -
SOURCE DIRECT
PURE DIRECT
Dolby D Surr. EX Dolby Digital EX OOOOO
2DIGITAL L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Dolby Digital 5.1 OOO -O2DIGITAL L, C, R, SL, SR, LFE
Dolby D (2ch) Dolby Digital 2.0 O----
2DIGITAL L, R
Dolby D (2ch Surr) Pro Logic IIx movie OOOO -2DIGITAL , 2SURROUND L, R, S
DTS-ES DTS-ES OOOOOdts, ES L, C, R, SL, SR, S, LFE
DTS 96/24 DTS 96/24 OOO -Odts 96/24 L, C, R, SL, SR, LFE
DTS (5.1ch) DTS 5.1 OOO -Odts L, C, R, SL, SR, LFE
Multi Ch-PCM Multi Ch-PCM OOO -OPCM L, C, R, SL, SR, LFE
Multi Ch-PCM 96kHz Multi Ch-PCM 96kHz OOO -OPCM L, C, R, SL, SR, LFE
PCM (Audio) PCM (Stereo) O----PCM L,R
PCM 96kHz PCM (96kHz Stereo) O----PCM L,R
HDCD PCM (Stereo) O- - - - PCM HDCD L, R
Analog Stereo O- - - - ANALOG -
EX/ES Dolby D Surr. EX Dolby Digital EX OOOOO
2DIGITAL L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Dolby Digital EX OOOOO
2DIGITAL L, C, R, SL, SR, LFE
DTS-ES DTS-ES OOOOOdts , ES L, C, R, SL, SR, S, LFE
DTS(5.1ch) DTS-ES OOOOOdts L, C, R, SL, SR, LFE
Multi-PCM
Multi Ch-PCM + Dolby EX OOOOOPCM L, C, R, SL, SR, LFE
AAC (5.1ch) AAC EX OOO -OAAC L, C, R, SL, SR, LFE
DOLBY
(PL IIx movie)
(PL IIx music)
(PL IIx game)
(Pro Logic)
Dolby D Surr. EX Dolby Digital 5.1 OOOOO
2DIGITAL L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Dolby Digital 5.1 OOOOO
2DIGITAL L, C, R, SL, SR, LFE
Dolby D (2ch) Pro Logic IIxOOOO -2DIGITAL L, R
Dolby D (2ch Surr) Pro Logic IIxOOOO -2DIGITAL , 2SURROUND L, R, S
Multi Ch-PCM Multi Ch-PCM + PLIIxOOOOOPCM L, C, R, SL, SR, LFE
PCM (Audio) Pro Logic II xOOOO - PCM L, R
Analog Pro Logic IIxOOOO -ANALOG -
DTS
(Neo:6 Cinema)
(Neo:6 Music)
DTS-ES DTS 5.1 OOO -Odts, ES L, C, R, SL, SR, S, LFE
DTS 96/24 DTS 96/24 OOO -Odts 96/24 L, C, R, SL, SR, LFE
DTS (5.1ch) DTS 5.1 OOO -Odts L, C, R, SL, SR, LFE
PCM (Audio) Neo:6 OOOO - PCM L, R
Analog Neo:6 OOOO -ANALOG -
Dolby D (2ch) Neo:6 OOOO -2DIGITAL L, R
Dolby D (2ch Surr) Neo:6 OOOO -2DIGITAL , 2SURROUND L, R, S
CS II Cinema
CS II Music
CS II Mono
PCM (Audio) CS II OOOOOPCM L, R
Analog CS II OOOOOANALOG -
Dolby D (2ch) CS II OOOOO
2DIGITAL L, R
Dolby D (2ch Surr) CS II OOOOO
2DIGITAL , 2SURROUND L, R, S
STEREO Dolby Surr. EX Stereo O---O2DIGITAL L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Stereo O---O2DIGITAL L, C, R, SL, SR, LFE
Dolby D (2ch) Stereo O----
2DIGITAL L, R
Dolby D (2ch Surr) Stereo O----
2DIGITAL , 2SURROUND L, R, S
DTS-ES Stereo O---Odts, ES L, C, R, SL, SR, S, LFE
DTS 96/24 Stereo O---Odts 96/24 L, C, R, SL, SR, LFE
DTS (5.1ch) Stereo O---Odts L, C, R, SL, SR, LFE
Multi Ch-PCM Stereo O---OPCM L, C, R, SL, SR, LFE
PCM (Audio) Stereo O----PCM L,R
PCM 96kHz Stereo O----PCM L,R
HDCD PCM (Stereo) O- - - - PCM HDCD L, R
Analog Stereo O----ANALOG -
Notes:
• 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
Virtual Dolby Surr. EX Virtual O----
2DIGITAL L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Virtual O----
2DIGITAL L, C, R, SL, SR, LFE
Dolby D (2ch) Virtual O----
2DIGITAL L, R
Dolby D (2ch Surr) Virtual O----
2DIGITAL , 2SURROUND 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.
Stereo
Dolby Surr. EX Dolby Digital EX OOOOO
2DIGITAL L, C, R, SL, SR, S, LFE
Dolby D (5.1ch) Dolby Digital 5.1 OOO -O2DIGITAL L, C, R, SL, SR, LFE
Dolby D (2ch) Multi Channel Stereo OOOO -2DIGITAL L, R
Dolby D (2ch Surr) Multi Channel Stereo OOOO -2DIGITAL , 2SURROUND
DTS-ES DTS-ES OOOOOdts, ES L, C, R, SL, SR, S, LFE
DTS (5.1ch) DTS 5.1 OOO -Odts L, C, R, SL, SR, LFE
Multi Ch-PCM Multi Ch-PCM OOO -OPCM L, C, R, SL, SR, LFE
Multi Ch-PCM 96kHz Multi Ch-PCM 96kHz OOO -OPCM L, C, R, SL, SR, LFE
PCM (Audio) Multi Channel Stereo OOOO - PCM L, R
Analog Multi Channel Stereo OOOO - ANALOG -
The relation between the selected surround mode and the input signal
The surround mode is selected with the surround mode buttons on DN-A7100 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;

5
DTS was introduced in 1994 to provide 5.1 channels of
discrete digital audio into home theater 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
standard of quality for cinema sound by delivering
an exact copy of the studio master recordings to
neighborhood and home theaters.
Now, every moviegoer can hear the sound exactly as
the moviemaker intended.
DTS can be enjoyed in the home for either movies or
music on of DVD’s, LD’s, and CD’s.
“DTS” and “DTS Digital Surround” are registered
trademarks of Digital 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 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 because of its mono, band-
limited surround it can be disappointing to users
accustomed to discrete multichannel.
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 derive six and five
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 music mode to expand stereo nonmatrix
recordings into the five- or six-channel layout, in a way
which does not diminish the subtlety and integrity of
the original stereo recording.
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DTS-ES Extended Surround is a new multichannel
digital signal format developed by Digital Theater
Systems Inc. While offering high compatibility with
the conventional DTS Digital Surround format, DTS-
ES Extended Surround greatly improves the 360-
degree surround impression and space expression
thanks to further expanded surround signals. This
format has been used professionally in movie
theaters since 1999.
In addition 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
different surround signal recording methods, as DTS-
ES Discrete 6.1 and DTS-ES Matrix 6.1.
“DTS”, “DTS-ES” and “Neo:6” are trademarks of
Digital Theater Systems, Inc.
The stereo CD is a 16-bit medium with sampling at
44.1 kHz. Professional audio has been 20- or 24-
bit for some time, and there is increasing interest
in higher sampling rates 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 filters with more favorable
aural characteristics.
DTS 96/24 allows for 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 96/24 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 with all existing
decoders. (Existing decoders will output a 48 kHz
signal)
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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
picture soundtracks on DVD-video.
“DTS” and “DTS 96/24” are trademarks of Digital
Theater Systems, Inc.
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2. TECHNICAL DESCRIPTION

6
Dolby Digital identifies the use of Dolby Digital audio
coding for such consumer formats as DVD and DTV.
As with film sound, Dolby Digital can provide up
to five full-range channels for left, center, and right
screen channels, independent left and right surround
channels, and a sixth (“.1”) channel for low-frequency
effects.
Dolby Surround Pro Logic II is an improved matrix
decoding technology that provides better spatiality
and directionality on Dolby Surround program
material; provides a convincing three-dimensional
soundfield on conventional 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 specifically to take full advantage of Pro
Logic II playback, 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 the two in the original recording. For
best results, Dolby Digital EX should be used with
movies soundtracks recorded with Dolby Digital
Surround EX.
About Dolby Pro Logic II x
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.
SR4001-5001UDFUENG.indb2 06.6.214:21:20PM
Circle Surround II (CS-II) is a powerful and versatile
multichannel technology. CS-II is designed to enable
up to 6.1 multichannel surround sound playback
from mono, stereo, CS encoded sources and other
matrix encoded sources. In all cases the decoder
extends it into 6 channels of surround audio and a
LFE/subwoofer signal. The CS-II decoder creates a
listening environment that places the listener “inside”
music performances and dramatically improves
both hi-fi audio conventional surround-encoded
video material. CS-II provides composite stereo rear
channels to greatly improve separation and image
positioning – adding a heightened sense of realism
to both audio and A/V productions.
SR4001-5001UDFUENG.indb2 06.6.214:21:20PM
CS-II is packed with other useful feature like dialog
clarity (SRS Dialog) for movies and cinema-like bass
enrichment (TruBass). CS-II can enable the dialog
to become clearer and more discernable in movies
and it enables the bass frequencies contained in
the original programming to more closely achieve
low frequencies – overcoming the low frequency
limitations of the speakers by full octave.
Circle Surround II, Dialog Clarity, TruBass, SRS and
symbol are trademarks of SRS Labs, Inc.
Circle Surround II, Dialog Clarity and TruBass
technology are incorporated under license from SRS
Labs, Inc.
SR4001-5001UDFUENG.indb3 06.6.214:21:22PM
Dolby Pro Logic IIx is fully compatible with Dolby
Surround Pro Logic technology and can optimally
decode the thousands of commercially available
Dolby Surround encoded video cassettes and
television programs with enhanced depth and
spatiality. It can also process any high-quality
stereo or Advanced Resolution 5.1-channel music
content into a seamless 6.1- or 7.1-channel listening
experience.
SR4001-5001UDFUENG.indb2 06.6.214:21:20PM

7
HDCD®(High Definition Compatible Digital ®) is a
patented process for delivering on Compact Disc the
full richness and details of the original microphone
feed.
HDCD encoded CDs sound better because they are
encoded with 20-bits of real musical information as
compared to 16-bits for all other CDs.
HDCD overcomes the limitation of the 16-bit CD
format by using a sophisticated system to encode
the additional four bits onto the CD while remaining
completely compatible with the CD format.
When listening to HDCD recordings, you hear more
dynamic range, a focused 3-D sound stage, and
extremely natural vocal and musical timbre. With
HDCD, you get the body, depth and emotion of the
original performance not a flat, digital imitation.
HDCD system manufactured under license from
Microsoft. This product is covered by one or more
of the following: In the United States 5,479,168
5,638,074 5,640,161 5,808,574 5,838,274 5,854,600
5,864,311 5,872,531 and in Australia 669,114 with
other patents pending.
HDMI, the and High-Definition Multimedia
Interface are trademarks or registered trademarks of
HDMI Licensing LLC.
SR4001-5001UDFUENG.indb3 06.6.214:21:22PM
XM Satellite Radio Ready
The XM name and related logos are registered
trademarks of XM Satellite Radio Inc.
SR4001-5001UDFUENG.indb1 06.6.214:21:17PM

8
SERV I CE MODE
DN - A7 1 0 0
SERV I CE MODE
DN - A7 1 0 0
V060711 1U
Month Date Dest.
(Dest. : Destination)
Year
V060711 1U
Month Date Dest.Year
(Dest. : 仕向け)
MZXXXXXXXXXXX MZXXXXXXXXXXX
SOFT TYPE XX
(XX is displayed in Hex)
SOFT TYPE XX
(XX: Hex数字表示)
CODE TYPEXXXX
(XXXX is displayed in Hex)
CODE TYPEXXXX
(XXXX: Hex数字表示)
CD01 02060105
SIGDev. TYP Ver.No.
No. : DISP CODE ID Dev. : Device ID SIG. : CODE SIG ID
TYP. : CODE TYPE ID Ver. : Version
CD01 02060105
SIGDev. TYP Ver.No.
No. : DISP CODE ID Dev. : Device ID SIG. : CODE SIG ID
TYP. : CODE TYPE ID Ver. : Version
3. SERVICE MODE
Microprocessor (IC11), DSP(IC40 )Version and FLD Segment
Check Mode.
1. While the power is on, MUTE, EXIT and KEY-LOCK
buttons simultaneously more than 3 seconds.
The FL display shows "SERVICE MODE" for 2 seconds
then shows the model name.
2. Press KEY-LOCK button, The software version of the
microprocessor (IC11) is displayed in the format below.
3. Press KEY-LOCK button again, The software Serial
Number that is wirtten in the factory is displayed.
4. Press KEY-LOCK button again, The software Type
Number is displayed.
5. Press KEY-LOCK button again, The Code Group Type
Number is displayed.
6. Press KEY-LOCK button again, The left half, right half
and center of the label area in the FLD light on and off
each other.
7. Press KEY-LOCK button again, The segments of the
character area in the FLD flick in checker pattern.
8. Press KEY-LOCK button again, All the FL segments
turns off.
9. Press KEY-LOCK button again. Every time KEY-LOCK
button is pressed, DSP code is indicated in turn from
NO.1 to NO.10.
10. Press KEY-LOCK button again to quit this mode.
3. SERVICE MODE
Microprocessor (IC11), DSP(IC40 ) のVersion 表示及び FL
点燈を確認するモードです。
1. セットの電源を入れます。MUTE, EXIT, KEY-LOCK のボ
タンを同時に約 3秒以上押します。
"SERVICE MODE" と表示が出ます。更に約 2秒後に機種
名が表示されます。
2. KEY-LOCK ボタンを押します。マイコン（IC11）のバー
ジョンが次のように表示されます。
3. KEY-LOCK ボタンを押します。工場で書き込み済みの
Software Serial No. が表示されます
4. KEY-LOCK ボタンを押します。マイコン（IC11）の
Software Type が表示されます。
5. KEY-LOCK ボタンを押します。Code Group Type が表示
されます。
6. KEY-LOCK ボタンを押します。FL 表示の右、左、中央部
分が交互に点燈を繰り返します。
7. KEY-LOCK ボタンを押します。FL のCharacter 部分が
点滅します。
8. KEY-LOCK ボタンを押します。FL が全消灯します。
9. KEY-LOCK ボタンを押します。KEY-LOCK ボタンを押
す度に DSP Code ID がNO.1 から NO.10 まで順に表示さ
れます。
10. KEY-LOCK ボタンを押します。サービスモードは解除さ
れます。

9
Note: Step4, 5 is to check if CPU software is capable of
DSP code. "Software Type No" is to show what "DSP
Code Group" CPU is capable of. And vice versa.
Step 9 is to manage the 16 codes for DSP.
• When the unit is once turned into Service Mode, the
unit keeps this mode until the main power is turned
off. (Turning into stand-by mode does not make it
quit from Service Mode.) When the unit quits from
Service Mode, Information in the memory is also
cleared and the unit returns to the status when it is
out from the factory.
Product Reset
To reset the back up memory of the unit into the default
status, follow the procedure below.
Should the operation or display seem to be abnormal,
reset the unit with the following procedure.
To turn on the DN-A7100, press and hold the KEY-
LOCK and CLEAR buttons simultaneously for 3
seconds or more.
Remember that the procedure will reset the settings
of the SOURCE, Surround mode, delay time, TUNER
PRESET etc., to their initial settings.
Personal notes:

10
CHECK DSP CHECK DSP
CHECK E2P CHECK E 2 P
CHECK E2P I F CHECK E2P I F
CHECK 2 3 2C CHECK 2 3 2C
CHECK POW5 CHECK POW5
PROTECT PROTECT
CHECK DSP ROM CHECK DSP ROM
CHECK ADC CHECK ADC
4. SYSTEM ERROR
When the microcomputer detects a trouble, the following
information is displayed on the FLD.
• After the error contents indication, Surround Mode is
initialized and returned Factory mode.
• The contents of the ERROR indication are the
followings.
1. Trouble in DSP
If communication with DSP is troubled more than 2
seconds.
2. Trouble in DSP Code
The trouble of DSP Code was found.
3. Trouble in EEP-ROM
If data from EEPROM does not match.
4. Trouble in EEP-ROM IF
If communication with EEPROM is troubled more than 2
seconds.
5. Trouble in RS-232C
If communication of Panja with RS232C is troubled more
than 2 seconds.
6. Trouble in 5V Supply
If 5V supply to DATA DIR is troubled.
7. Trouble in Protection
CPU turns off the speaker output.
8. Trouble in ADC
When ADC input was chosen and CAL signal continued
High about 2 seconds after the ADC Calibration start.
4. SYSTEM ERROR
製品内部での異常発生時に処理、表示を行います。主に各
Device との通信異常を検出します。
･ERROR 表示後、Surround Mode は初期化され工場出荷の
状態に戻ります。
･ERROR 表示の内容は下記です。
1. DSP 異常検出表示
DSP との通信上の不具合を約 2秒検出した時。
2. DSP Code 異常検出表示
DSP Code の異常を検出した時。
3. EEP-ROM 異常検出表示
EEP-ROM Data の不整合を検出した時。
4. EEP-ROM IF 異常検出表示
EEP-ROM との通信不具合が約 2秒以上生じた時。
5. RS-232C 異常検出表示
Panja 通信時に RS-232Cとの通信不具合を約 2秒以上検
出した時。
6. 5V 異常検出表示
DATA DIR.の異常を検出した時。
7. Protection 信号異常検出表示
Speaker からを出力を止めます。
8. AD コンバータ異常検出表示
CAL 信号 High 状態を 2秒以上検出した時。

11
5. UPDATE FIRMWARE
Software for CPU and DSP can be updated.
Have update application software. ("UpgradeDSP.exe" and
"H8Download.exe")
There are two mode of download, regarding to the target of
software as bellow.
Mode 1: Update DSP’s software to Flash-ROM.
This mode is to update the software for DSP.
The target devise is Flash-ROM (IC40) on CUP11942
(INPUT PWB).
The Unit needs to be set update condition, by three front
keys.
Mode 2: Update CPU’s software to internal Flash-ROM.
This mode is to update the software for CPU.
The target devise is internal flash ROM of CPU (IC11) on
CUP11942 (INPUT PWB).
The Unit needs to be set to writing condition, by pushing
internal switch from back-panel.
The following items are required for updating.
RS232C Dsub-9 pin cable (female to female/Straight type)
Windows PC (98, NT, ME, 2000, XP) with RS-232C port.
Update software to CPU.
Update software to DSP.
Use RS232C Dsub-9 pin cable (female to female/Straight
type) to connect PC and the unit.
COM port on PC needs to be set by dialog box for each
program. COM port can be set from COM1 to COM5.
Download Firmware for DSP (Mode 1)
1. Put the "DSP upgrade" folder into anywhere on your PC’
s hard disc.
2. Connect PC and the unit with the RS-232C cable.
3. Turn on the unit.
5. UPDATE FIRMWARE
CPU および DSP ソフトウェアのアップデートを行います .
ソフトウェアのアップデートには UpgradeDSP.exe と
H8Download.exe が必要です。
アップデートには次の二つのモードがあります。
Mode 1:DSP 用Flash-ROM のアップデート
このモードは DSP のソフトウェアをアップデートするモー
ドです。
CUP11942 (INPUT PWB) の基板上にある Flash-ROM
(IC40) のソフトウェアをアップデートします。
本機、フロントパネルにある 3つのボタンを押してアップ
デートモードにします。
Mode 2:CPU の内部 Flash-ROM のアップデート
このモードは CPU のソフトウェアをアップデートするモー
ドです。
CUP11942 (INPUT PWB) の基板上にある CPU(IC11) の
内部 Flash-ROM のソフトウェアをアップデートします。
本機のリアパネルから内部スイッチを押してアップデート
モードにします。
アップデートには下記の機器が必要です。(必要機器 )
RS-232C ストレートケーブル (9Pin メス -9Pin メス )
Windows PC Serial Port 付き (OS: 98, NT, ME, 2000, XP)
CPU 用アップデートソフトウェア
DSP 用アップデートソフトウェア
RS-232C ケーブルで本機と接続する PC のCOM ポート番号
を設定してください。
COM ポート番号は COM1 から COM5 まで設定できます。
DSP アップデート方法 (Mode 1)
1. "DSP upgrade" フォルダを PC のハードディスクにコピー
します。
2. 本機と PC をRS-232C で接続します。
3. 本機の電源を入れます。

12
4. Press ENTER, MUTE and T-MODE buttons
simultaneously more than 5 seconds to turn the unit into
Loading Mode.
5. "LOADING MODE" will be shown on FLD.
6. Launch "UpgradeDSP.exe" on PC.
Note : yy_mm_dd is release date of software.
7. Click Port setting, and select the COM Port No.
4. ENTER, MUTE, T-MODE の3つのボタンを同時に 5秒以
上押し続けて Loading Mode にします。
5. FL ディスプレイに "LOADING MODE" と表示されます。
6. PC から "UpgradeDSP.exe" をダブルクリックして起動し
ます。
注記 : ファイル名の yy_mm_dd はソフトウェアの発行日をあ
らわします。
7. Port setting をクリックし、COM ポート番号を選択します。

13
8. Set the Baud rate to 38400 then click Start
communication button.
9. If the connection is made successfully, a dialog
box saying "Success to connect" appears and
“CONNECTED” is displayed on FLD.
10. Click Send the DSP codes button on the dialog box.
Progress status of updating will be shown on PC and
LOADING is displayed on FLD.
11. If updating is completed successfully, "COMPLETED" is
displayed on FLD. And a dialog box saying "Finished the
DSP code transmitting" appears.
12. Click OK and then Application is closed automatically.
13. Turn off the unit.
8. Baud rate を38400 に設定し、Start communication を
クリックします。
9. 通信接続に成功すると下記のダイアログボックスが表示さ
れ、
FL ディスプレイには "CONNECTED" が表示されます。
10. Send the DSP codes をクリックします。アップデー
トのステータスバーが表示され、FL ディスプレイには
"LOADING" が表示されます。
11. アップデートが成功すると FL ディスプレイに
"COMPLETED" と表示されます。同時に "Finished the
DSP code transmitting" のダイアログボックスが表示され
ます。
12. OK をクリックすると自動的にアプリケーションが閉じま
す。
13. 本機の電源を切ります。

14
Hole of rear panel
SW99
リアパネルにある穴
RS-232C cable
Download Firmware for CPU (Mode 2)
1. Put the "CPU update" folder into anywhere on your PC’s
hard disc.
2. Connect PC and the unit with the RS-232C cable.
3. Insert a thin rot to the hole and push the switch (SW99)
inside to turn on the switch.
4. Turn on the power of the unit.
Note : When the unit is into boot mode, stand-by LED is
not lights up.
CPU のアップデート方法 (Mode 2)
1. "CPU update" フォルダを PC のハードディスクにコピー
します。
2. 本機と PC をRS-232C ケーブルで接続します。
3. 細い棒を使い本機のリアパネルにある穴からスイッチ
(SW99) を押します。
4. 本機の電源を入れます。
注記 :本機はブートモードになり、Stand-by LED は点灯しま
せん。

15
H8FW2505
DNA7100_yymmdd.mot
DNA7100_yymmdd.mot
H8FW2505
H8FW2505
H8FW2505
5. Launch "H8Download.exe" on PC.
6. Click Set Ports, and select the COM Port No.
7. Click other files... button in the dialog box to specify the
file (DNA7100_yymmdd.mot) to be uploading. yymmdd
in file name is release date of software.
5. PC から "H8Download.exe" をダブルクリックして起動し
ます。
6. Set Ports をクリックし、COM ポート番号を選択します。
7. other files…をクリックして、アップデートファイル
(DNA7100_yymmdd.mot) を選択し開きます。

16
h82505_38400.inf
8. Click Connect button. If the connection with the H8 µ-P
is successfully made, a dialogue box saying "Success
to the H8 micro processor connection" appears. (If the
connection fails, error message will appear.)
9. Click Send button to start update.
10. If the firmware is updated successfully, a dialog box
saying "Finished the firmware program sending"
appears.
8. Connect をクリックします。H8 u-P と通信接続に成功す
ると "Success to the H8 micro processor connection" の
ダイアログが表示されます。(通信に失敗するとエラーメッ
セージが表示されます。)
9. Send をクリックしアップデートを開始します。
10. ソフトウェアのアップデートが成功すると、"Finished the
firmware program sending" のダイアログボックスが表示
されます。

17
h82505_38400.inf
11. Click Close button to close the application.
12. Disconnect Mains power cord.
13. Turn off the internal switch (SW99) that has been turned
on at step 3.
14. Turn on the unit.
Firmware Version Check
To check the versions of the firmware, see "Microprocessor
(CPU), DSP Version and FLD Segment Check Mode" in
"SERVICE MODE" section.
11. Close をクリックしてアプリケーションを閉じます。
12. 本機の電源を切ります。
13. 手順 3のスイッチ（SW99）を押してブートモードを解除
します。
14. 電源を入れます。
バージョンの確認
ソフトウェアのバージョンを確認します。確認方法は
"SERVICE MODE"内の "Microprocessor (CPU), DSP
Version and FLD Segment Check Mode"を参照してください。

18
Personal notes: