Denon AVR-2312 User manual

D&M Holdings Inc.
SERVICE MANUAL
e
e
MODEL JP E3 E2 EK EA E1C E1K CI
AVR-2312CI
P
AVR-2312
P P P
INTEGRATED NETWORK AV RECEIVER
Ver. 5
S0376-0V05DM/DG1110
• Some illustrations using in this service manual are slightly different from the actual set.
• Please use this service manual with referring to the operating instructions without fail.
• For purposes of improvement, specications and design are subject to change without notice.
s ss
Please refer to the
MODIFICATION NOTICE.

2
CONTENTS
SAFETY PRECAUTIONS..........................................................3
NOTE FOR SCHEMATIC DIAGRAM.........................................4
TECHNICAL SPECIFICATIONS ...............................................5
DIMENSION...............................................................................5
CAUTIONS IN SERVICING .......................................................6
Initializing INTEGRATED NETWORK AV RECEIVER ..............6
Service Jig.................................................................................6
DISASSEMBLY..........................................................................7
1. FRONT PANELASSY ...........................................................9
2. HEAT SINK ASSY ...............................................................10
3. HDMI UNIT ASSY................................................................12
4. TRANS MAIN ......................................................................15
SPECIAL MODE......................................................................16
Special mode setting button....................................................16
1. µcom/DSP Version display mode........................................17
2. Errors checking mode (Displaying the protection history)...20
3. Remote ID Setup mode.......................................................22
PROTECTION DIAGRAM........................................................23
4. DIAGNOSTIC MODE
(Video/Audio (signal) path conrmation mode) .......................24
BLOCK DIAGRAM...................................................................29
JIG FOR SERVICING ..............................................................59
WHEN THE MICROPROCESSOR IS REPLACED
WITH A NEW ONE...................................................................63
PROCEDURE FOR UPGRADING
THE VERSION OF THE FIRMWARE ......................................63
ADJUSTMENT.........................................................................70
SURROUND MODES AND PARAMETERS............................71
TROUBLE SHOOTING............................................................75
1. POWER...............................................................................75
2. Analog video........................................................................76
3. HDMI/DVI............................................................................82
4. AUDIO.................................................................................91
5. Network/USB.......................................................................94
6. SMPS..................................................................................97
CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK...........100
LAEVEL DIAGRAM...............................................................101
PRINTED WIRING BOARDS.................................................107
7CH AMP (COMPONENT SIDE) ..........................................107
7CH AMP (FOIL SIDE)..........................................................107
SPMS (COMPONENT SIDE)................................................108
SMPS (FOIL SIDE) ...............................................................108
SPK_PREOUT (COMPONENT SIDE)..................................109
SPK_PREOUT (FOIL SIDE) .................................................110
INPUT (COMPONENT SIDE) ...............................................111
INPUT (FOIL SIDE)...............................................................112
FUSE (COMPONENT SIDE).................................................113
RS232C_CNT (COMPONENT SIDE)...................................113
FUSE (FOIL SIDE)................................................................113
RS232C_CNT (FOIL SIDE)...................................................113
POSISTOR (COMPONENT SIDE)........................................113
POSISTOR (FOIL SIDE).......................................................113
FRONT (COMPONENT SIDE)..............................................114
V.AUX (FOIL SIDE)...............................................................114
FRONT (FOIL SIDE) .............................................................114
V.AUX (COMPONENT SIDE)................................................114
HDMI FFC (COMPONENT SIDE).........................................115
GUIDE TOP (COMPONENT SIDE).......................................115
GUIDE L (COMPONENT SIDE)............................................115
HDMI FFC (FOIL SIDE) ........................................................115
GUIDE TOP (FOIL SIDE)......................................................115
GUIDE L (FOIL SIDE) ...........................................................115
USB (COMPONENT SIDE)...................................................115
HP (COMPONENT SIDE).....................................................115
GUIDE R (COMPONENT SIDE)...........................................115
USB (FOIL SIDE)..................................................................115
HP (FOIL SIDE).....................................................................115
GUIDE R (FOIL SIDE)...........................................................115
SELECTOR (COMPONENT SIDE).......................................116
RS232C (COMPONENT SIDE).............................................116
SELECTOR (FOIL SIDE) ......................................................116
RS232C (FOIL SIDE)............................................................116
SIDE_CNT (COMPONENT SIDE) ........................................117
SIDE_CNT (FOIL SIDE)........................................................117
VIDEO (COMPONENT SIDE)...............................................118
VIDEO (FOIL SIDE) ..............................................................119
FRONT CNT (COMPONENT SIDE) .....................................120
FRONT CNT (FOIL SIDE).....................................................121
HDMI (COMPONENT SIDE).................................................122
HDMI (FOIL SIDE) ................................................................123
SCHEMATIC DIAGRAMS......................................................124
USB UNIT..............................................................................124
FRONT UNIT.........................................................................124
AMP UNIT (1/2).....................................................................125
AMP UNIT (2/2).....................................................................126
SPK/PREOUT/REG UNIT (1/4).............................................127
SPK/PREOUT/REG UNIT (2/4).............................................128
SPK/PREOUT/REG UNIT (3/4).............................................129
FRONT_CNT UNIT...............................................................130
CNT/RS232C UNIT (1/4).......................................................131
CNT/RS232C UNIT (2/4).......................................................132
CNT/RS232C UNIT (3/4).......................................................133
CNT/RS232C UNIT (4/4).......................................................134
INPUT UNIT..........................................................................135
VIDEO UNIT..........................................................................136
SMPS UNIT...........................................................................137
DIGITAL UNIT (1/16).............................................................138
DIGITAL UNIT (2/16).............................................................139
DIGITAL UNIT (3/16).............................................................140
DIGITAL UNIT (4/16).............................................................141
DIGITAL UNIT (5/16).............................................................142
DIGITAL UNIT (6/16).............................................................143
DIGITAL UNIT (7/16).............................................................144
DIGITAL UNIT (8/16).............................................................145
DIGITAL UNIT (9/16).............................................................146
DIGITAL UNIT (10/16)...........................................................147
DIGITAL UNIT (11/16)...........................................................148
DIGITAL UNIT (12/16)...........................................................149
DIGITAL UNIT (13/16)...........................................................150
DIGITAL UNIT (14/16)...........................................................151
DIGITAL UNIT (15/16)...........................................................152
DIGITAL UNIT (16/16)...........................................................153
WIRING DIAGRAM................................................................154
EXPLODED VIEW .................................................................155
PARTS LIST OF EXPLODED VIEW .....................................157
PACKING VIEW ....................................................................160
PARTS LIST OF PACKING & ACCESSORIES ....................160
SEMICONDUCTORS.............................................................162
1. IC's ....................................................................................162
2. FL DISPLAY.......................................................................193
PARTS LIST OF P.C.B. UNIT ...............................................195
PCB INPUTASSY.................................................................195
PCB FRONTASSY...............................................................197
PCB 7CH AMP ASSY............................................................200
PCB MAIN ASSY...................................................................207
PCB CNTASSY....................................................................211
PCB VIDEO ASSY ................................................................213
PCB HDMI ASS'Y..................................................................215
PCB SMPS ASSY .................................................................224

3
SAFETY PRECAUTIONS
The following items should be checked for continued protection of the customer and the service technician.
LEAKAGE CURRENT CHECK
Before returning the set to the customer, be sure to carry out 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 set is defective.
Be sure to test for leakage current with the AC plug in both polarities, in addition, when the set's power is in each state (on,
off and standby mode), if applicable.
CAUTION Please heed the following cautions and instructions during servicing and
inspection.
◎Heed the cautions!
Cautions which are delicate in particular for servicing
are labeled on the cabinets, the parts and the chassis,
etc. Be sure to heed these cautions and the cautions
described in the handling instructions.
◎Cautions concerning electric shock!
(1) An AC voltage is impressed on this set, so if
you touch internal metal parts when the set is
energized, you may get an electric shock. Avoid
getting an electric shock, by using an isolating
transformer and wearing gloves when servicing
while the set is energized, or by unplugging the
power cord when replacing parts, for example.
(2) There are high voltage parts inside. Handle with
extra care when the set is energized.
◎Caution concerning disassembly and
assembly!
Through great care is taken when parts were
manufactured from sheet metal, there may be burrs
on the edges of parts. The burrs could cause injury if
ngers are moved across them in some rare cases.
Wear gloves to protect your hands.
◎Use only designated parts!
The set's parts have specic safety properties (re
resistance, voltage resistance, etc.). Be sure to use
parts which have the same properties for replacement.
The burrs have the same properties. In particular, for
the important safety parts that are indicated by the z
mark on schematic diagrams and parts lists, be sure to
use the designated parts.
◎Be sure to mount parts and arrange the wires
as they were originally placed!
For safety seasons, some parts use tapes, tubes or
other insulating materials, and some parts are mounted
away from the surface of printed circuit boards.
Care is also taken with the positions of the wires by
arranging them and using clamps to keep them away
from heating and high voltage parts, so be sure to set
everything back as it was originally placed.
◎Make a safety check after servicing!
Check that all screws, parts and wires removed or
disconnected when servicing have been put back in
their original positions, check that no serviced parts
have deteriorate the area around. Then make 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 on the power.
Using a 500V insulation resistance tester, check that
the insulation resistance value between the inplug and
the externally exposed metal parts (antenna terminal,
headphones terminal, input terminal, etc.) is 1MΩ or
greater. If it is less, the set must be inspected and
repaired.
Many of the electric and the structural parts used in
the set have special safety properties. In most cases
these properties are difcult to distinguish by sight, and
the use of replacement parts with higher ratings (rated
power and withstand voltage) does not necessarily
guarantee that safety performance will be preserved.
Parts with safety properties are indicated as shown
below on the wiring diagrams and the parts list in this
service manual. Be sure to replace them with the parts
which have the designated part number.
(1) Schematic diagrams.......Indicated by the z mark.
(2) Parts lists.......Indicated by the zmark.
The use of parts other than the
designated parts could cause electric
shocks, res or other dangerous
situations.
CAUTION Concerning important safety
parts

4
NOTE FOR SCHEMATIC DIAGRAM
WARNING:
Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.
CAUTION:
Before returning the set to the customer, be sure to carry out 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 set
is defective.
WARNING:
DO NOT return the set to the customer unless the problem is identied and remedied.
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM / M=1,000,000 OHM
ALL CAPACITANCE VALUES ARE EXPRESSED IN MICRO FARAD, UNLESS OTHERWISE INDICATED. P INDICATES MICRO-MICRO
FARAD. EACH VOLTAGE AND CURRENT ARE MEASURED AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT
TO CHANGE WITHOUT PRIOR NOTICE.
NOTE FOR PARTS LIST
Parts indicated by "nsp" on this table cannot be supplied.
When ordering a part, make a clear distinction between "1" and "I" (i) to avoid mis-supplying.
A part ordered without specifying its part number can not be supplied.
General-purpose Carbon Chip Resistors are not included are not included in the P.W.Board parts list.
(Refer to the Schematic Diagram for those parts.)
Parts indicated by the zmark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.
General-purpose Carbon Film Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.)
Part indicated by "★" mark is not illustrated in the exploded view.
WARNING:
1.
2.
3.
4.
5.
6.
●Resistors
RD: Carbon
RC: Composition
RS : Metal oxide film
RW: winding
RN: Metal film
RK : Metal mixture
P : Pulse-resistant type
NL : Low noise type
NB : Non-burning type
FR : Fuse-resistor
F : Lead wire forming
2B : 1/8 W
2E : 1/4 W
2H : 1/2 W
3A : 1 W
3D : 2 W
3F : 3 W
3H : 5 W
F : ±1%
G:±2%
J : ±5%
K : ±10%
M : ±20%
Ex.: RN
Type 14K Shape
and per-
formance
2E
Power 182 Resist-
ance
G
Allowable
error
FR
Others
*Resistance 1800ohm=1.8kohm1 8 2 Indicates number of zeros after effective number.
2-digit effective number.
1.2ohm1 R 2
2-digit effective number, decimal point indicated by R.
1-digit effective number.
: Units: ohm
●Capacitors
CE : Aluminum foil
electrolytic
CA : Aluminium solid
electrolytic
CS : Tantalum electrolytic
CQ: Film
CK : Ceramic
CC: Ceramic
CP : Oil
CM: Mica
CF : Metallized
CH: Metallized
HS : High stability type
BP : Non-polar type
HR: Ripple-resistant type
DL : For change and discharge
HF : For assuring high frequency
U : UL part
C : CSA part
W : UL-CSA part
F : Lead wire forming
0J : 6.3 V
1A : 10 V
1C : 16 V
1E : 25 V
1V : 35 V
1H : 50 V
2A : 100 V
2B : 125 V
2C : 160 V
2D : 200 V
2E : 250 V
2H : 500 V
2J : 630 V
F : ±1%
G:±2%
J : ±5%
K : ±10%
M : ±20%
Z : ±80%
: - 20%
P : +100%
C : ±0.25pF
D : ±0.5pF
= : Others
Ex.: CE
Type 04W Shape
and per-
formance
1H
Dielectric
strength
3R2
Capacity M Allowable
error
BP
Others
･Units:μF.
2200μF2 2 2 Indicates number of zeros after effective number.
2-digit effective number. ･Units:μF.
2.2μF2 R 2
2-digit effective number, decimal point indicated by R
1-digit effective number.
*Capacity (electrolyte only)
･When the dielectric strength is indicated in AC,"AC" is included after the dielectric strength value.
*Capacity (except electrolyte)
･Units:pF
2200pF=0.0022μF2 2 2
Indicates number of zeros after effective number. (More than 2)
2-digit effective number. ･Units:pF
220pF2 2 1
2-digit effective number.
Indicates number of zeros after effective number. (0 or 1)
NOTE FOR PARTS LIST

5
TECHNICAL SPECIFICATIONS s
nAudio Section
• Poweramplier
Rated output :
Front :
105 W + 105 W (8 Ω, 20 Hz – 20 kHz with 0.08 % T.H.D.)
135 W + 135 W (6 Ω, 1 kHz with 0.7 % T.H.D.)
Center :
105 W (8 Ω, 20 Hz – 20 kHz with 0.08 % T.H.D.)
135 W (6 Ω, 1 kHz with 0.7 % T.H.D.)
Surround :
105 W + 105 W (8 Ω, 20 Hz – 20 kHz with 0.08 % T.H.D.)
135 W + 135 W (6 Ω, 1 kHz with 0.7 % T.H.D.)
Surround back:
105 W + 105 W (8 Ω, 20 Hz – 20 kHz with 0.08 % T.H.D.)
135 W + 135 W (6 Ω, 1 kHz with 0.7 % T.H.D.)
Output connectors : 6 – 16 Ω
• Analog
Input sensitivity/Input impedance : 200 mV/47 kΩ
Frequency response: 10 Hz – 100 kHz — +1, –3 dB (DIRECT mode)
S/N : 100 dB (IHF–A weighted, DIRECT mode)
nVideo section
• Standard video connectors
Input/output level and impedance : 1 Vp-p, 75 Ω
Frequency response : 5 Hz – 10 MHz — 0, –3 dB
• Color component video connector
Input/output level and impedance : Y (brightness) signal — 1 Vp-p, 75 Ω
PB/ CB signal — 0.7 Vp-p, 75 Ω
PR/ CR signal — 0.7 Vp-p, 75 Ω
Frequency response : 5 Hz – 60 MHz — 0, –3 dB
nTuner section (E3 model)
[FM](Note: μV at 75 Ω, 0 dBf = 1 x 10–15 W)
Receiving Range :
[FM] 87.5 MHz – 107.9 MHz [AM]520 kHz – 1710 kHz
Usable Sensitivity :
[FM]1.2 μV (12.8 dBf) [AM]18 μV
50 dB Quieting Sensitivity:
[FM]MONO 2.0 μV (17.3 dBf)
S/N (IHF-A) :
[FM]MONO 72 dB [AM]
STEREO 67 dB
Total harmonic Distortion :
[FM]MONO 0.3 % (1 kHz) [AM]
STEREO 0.7 % (1 kHz)
nTuner section (E2,EA,E1C model)
[FM](Note: μV at 75 Ω, 0 dBf = 1 x 10–15 W)
Receiving Range :
[FM] 87.5 MHz – 108.0 MHz [AM]522 kHz – 1611 kHz
Usable Sensitivity :
[FM]1.2 μV (12.8 dBf) [AM]18 μV
50 dB Quieting Sensitivity :
[FM]MONO 2.0 μV (17.3 dBf)
STEREO 34.5 μV (42 dBf)
S/N :
[FM]MONO 72 dB (IHF–A weighted, DIRECT mode)
STEREO 67 dB (IHF–A weighted, DIRECT mode)
Total harmonic Distortion :
[FM]MONO 0.3 % (1 kHz)
STEREO 0.7 % (1 kHz)
nGeneral
Power supply : AC 120 V, 60 Hz (E3 model)
AC 230 V, 50/60 Hz (E2,EA model)
AC 220 V, 50 Hz (E1C model)
Power consumption :
600 W
0.1 W (Standby)
2.2 W (CEC standby)
Maximum external dimensions :435 (W) x 167 (H) x 382 (D)
Weight :11.0 kg
DIMENSION
340
435
35.2 86 29.8
236.8
54.7
382
338.5 22
245
21.5
151
167
16

6
CAUTIONS IN SERVICING
Initializing INTEGRATED NETWORK AV RECEIVER
INTEGRATED NETWORK AV RECEIVER initialization should be performed when the μcom, peripheral parts of μcom,
and Digital P.W.B. were replaced.
1. Turn off the power pressing ON/STANDBY button.
2. Press ON/STANDBY button while simultaneously while pressing PRESET CHANNEL 2 and PRESET CHANNEL 3
buttons.
3. Check that the entire display is ashing at intervals of about 1 second, and then release the 2 buttons.
The microprocessor will be initialized.
Service Jig d
When you repair the printing board, you can use the following JIG (Extension cable kit).
Please order it from Denon Ofcial Service Distributor in your region if necessary.
8U-110084S : EXTENSION UNIT KIT : 1 Set
(Refer to 59 page.)
Note: • If step 3 fails, start over from step 1.
• All user settings will be lost and the factory setting will be recovered after the set is initialized.
So make sure to note down your setting beforehand for restoring after the initialization.
ON/STANDBY PRESET CHANNEL 2 PRESET CHANNEL 3

7
DISASSEMBLY
• Disassemble in order of the arrow in the following gure.
• In the case of the re-assembling, assemble it in order of the reverse of the following ow.
• In the case of the re-assembling, observe "attention of assembling".
• If wire bundles are untied or moved to perform adjustment or replace parts etc., be sure to rearrange them neatly as
they were originally bundled or placed afterward.
Otherwise, incorrect arrangement can be a cause of noise generation.
FRONT PANEL ASSY
Refer to "DISASSEMBLY
1. FRONT PANEL ASSY"
and "EXPLODED VIEW"
PCB V.AUX_VOL
(Ref. No. of EXPLODED VIEW : C1)
PCB HP
(Ref. No. of EXPLODED VIEW : C2)
PCB USB
(Ref. No. of EXPLODED VIEW : C3)
PCB FRONT
(Ref. No. of EXPLODED VIEW : C4)
PCB SELECTOR
(Ref. No. of EXPLODED VIEW : C5)
PCB HDMI FFC GUIDE
(Ref. No. of EXPLODED VIEW : C6)
PCB FRONT HDMI
(Ref. No. of EXPLODED VIEW : C25)
POWER TRANS
Refer to "DISASSEMBLY
4. POWER TRANS"
and "EXPLODED VIEW"
POWER TRANS
(Ref. No. of EXPLODED VIEW : C23)
CABINET TOP
HEAT SINK ASSY
Refer to "DISASSEMBLY
2. HEAT SINK ASSY"
and "EXPLODED VIEW"
PCB GUIDE R
(Ref. No. of EXPLODED VIEW : C7)
PCB GUIDE L
(Ref. No. of EXPLODED VIEW : C8)
PCB GUIDE TOP
(Ref. No. of EXPLODED VIEW : C9)
PCB 7CH_AMP ASSY
(Ref. No. of EXPLODED VIEW : C10)
HDMI UNIT ASSY
Refer to "DISASSEMBLY
3. HDMI UNIT ASSY"
and "EXPLODED VIEW"
PCB FRONT CNT
(Ref. No. of EXPLODED VIEW : C11)
PCB SIDE CNT
(Ref. No. of EXPLODED VIEW : C12)
PCB RS232C
(Ref. No. of EXPLODED VIEW : C13)
PCB SPK_PREOUT
(Ref. No. of EXPLODED VIEW : C14)
PCB RS232C CNT
(Ref. No. of EXPLODED VIEW : C15)
PCB FUSE
(Ref. No. of EXPLODED VIEW : C16)
PCB F_WIDE
(Ref. No. of EXPLODED VIEW : C17)
PCB INPUT
(Ref. No. of EXPLODED VIEW : C18)
PCB VIDEO ASSY
(Ref. No. of EXPLODED VIEW : C20)
PCB HDMI
(Ref. No. of EXPLODED VIEW : C22)

8
About the photos used for "descriptions of the DISASSEMBLY" section
• The shooting direction of each photograph used herein is indicated on the left side of the respective photograph as
"Shooting direction: ***".
• Refer to the diagram below about the shooting direction of each photograph.
• Photographs with no shooting direction indicated were taken from the top of the set.
• The photograph is AVR-2312CIE3 model.
The viewpoint of each photograph
(Shooting direction)
［View from the top］
Front side
Shooting direction: B
Shooting direction: DShooting direction: C
Shooting direction: A

9
1. FRONT PANEL ASSY
(1) Remove the screws.
(2) Cut the wire clamp band, then disconnect the connector wires and FFC cables. Remove the screws.
CABINET TOP FRONT PANEL ASSY
→
Proceeding :
View from the bottom
CN390 FFC cable
CN602
FFC cable
STYLE PIN : Loosen
TAPE : Remove
cut
cut
Please refer to "EXPLODED VIEW" for the disassembly method of each P.W.B included in FRONT PANEL ASSY.

10
2. HEAT SINK ASSY
(1) Remove the screws.
(2) Cut the wire clamp band, then remove the screws. Disconnect the connector wires.
CABINET TOP HEAT SINK ASSY
→
Proceeding :
View from the bottom
Shooting direction: D
Shooting direction: C
cut
cut
CN602

11
(3) Cut the wire clamp band, then disconnect the connector wire and FFC cables .
(4) Cut the wire clamp bands, then disconnect the connector wires.
CN390 FFC cable
FFC cable
STYLE PIN : Loosen HEAT SINK Assy
TAPE : Remove
cut
CN461
CN702CN703CN701
cut
Please refer to "EXPLODED VIEW" for the disassembly method of each P.W.B included in HEAT SINK ASSY.

12
3. HDMI UNIT ASSY
(1) Remove the screws, then remove the BACK PANEL and the HDMI BRACKET.
(2) Cut the wire clamp band, then disconnect the connector wires and the FFC cables.
Remove the PCB DOCK from the PCB SIDE CNT and PCB RS232C(Board to board).
CABINET TOP HDMI UNIT ASSY
→
Proceeding :
Shooting of photograph: A
CN390 FFC cable
FFC cable
CN704
STYLE PIN : Loosen
TAPE : Remove
cut
cut

13
(3) Disconnect the connector wire. Remove the screws.
(4) Remove the screws.
CN931

14
(5) Cut the wire clamp band, then disconnect the connector wires.
(6) Cut the wire clamp band, then disconnect the connector wires.
CN940CN932CN941 CN903 CN781
cut
CN701
CN461
CN703 CN702
cut

15
(7) Cut the wire clamp bands, then disconnect the connector wires, and remove the screws.
(8) Remove the screw.
4. TRANS MAIN
CN203 CN902
cut
cut
Please refer to "EXPLODED VIEW" for the disassembly method of each P.W.B included in HDMI UNIT ASSY.
CABINET TOP HDMI UNIT ASSY
→POWER TRANS →
Proceeding :
Please refer to "EXPLODED VIEW" for the disassembly method of each P.W.B included in TRANS MAIN.

16
SPECIAL MODEd
Special mode setting button
b No.1 - 10, 12 : Press the ON/STANDBY button to turn on the power while pressing both the button A and the button B at the same
time.
bNo.11 : Press and hold both buttonsA and B for over 3 second with the power turned on.
No. Mode Button A Button B Contents
1Version display
(μcom/DSP Error Display) iPod 1STATUS Firmware versions such as Main or DSP are displayed in the FL manager. Errors are displayed when they occur. (Refer to 17 page)
2 Displaying the protection history mode SLEEP STATUS The protection history is displayed.
(Refer to 20 page)
3IInitialization mode
(Remove settings for Installer Setup.) PRESET CHANNEL 2
PRESET
CHANNEL 3
Backup data initialization is carried out.
(Remove settings for Installer Setup.)
4IInitialization mode
(Includes settings for Installer Setup.) PRESET CHANNEL 1
PRESET
CHANNEL 2
Backup data initialization is carried out.
(Includes settings for Installer Setup.)
5Mode for switching tuner frequency step
(E2 model Only) TUNER PRESET CH + TUNER PRESET CH - Change tuner frequency step to FM:200kHz/AM:10kHzSTEP
6Mode for preventing remote control
acceptance PRESET CHANNEL 1
INTERNET
RADIO
Operations using the remote control are rejected.
(Mode cancellation: Turn off the power and execute the same
button operations as when performing setup.)
7 Panel lock mode PRESET
CHANNEL 2
TUNER
PRESET CH + Operations using the main unit panel buttons or the master volume knob are rejected.
8Panel lock mode
(Master volume is not locked.) PRESET CHANNEL 2 SLEEP Operations using the main unit panel buttons are rejected.
9 Cancellation of panel lock mode TUNER
PRESET CH - ZONE2/REC SELECT Panel lock mode is cancelled.
10 Diagnostic mode PRESET
CHANNEL 1 STATUS This mode is used for conrming the Video and Audio (signal)
paths. (Troubleshooting)
The signal paths of the set can be easily conrmed after repair.
11 Remote ID Setup mode PRESET
CHANNEL 1 STATUS When using multiple DENON AV receivers in the same room, make
this setting so that only the desiredAV receiver operates.(Refer to 22
page)
12 Installer Setup mode SHIFT STATUS Access the Remote Maintenance mode via the internet.Installer Setup is displayed on GUI/Option Menu.
bRefer to AVR_RemoteMaintenance_.pdf of SDI.
NOTE:
If " REC " is displayed on the uorescent display, the set is in the special developer's mode and the RS-232C
communications are not possible.
Turn on the power, then press and hold down the "PRESET CHANNEL 2" and " STATUS " buttons for over 3 seconds to
turn off "Q" on the display. RS-232C communications are now enabled.
STATUS
iPod 1
ZONE2/REC SELECT SLEEP
TUNER PRESET CH +,-
INTERNET RADIO
ON/STANDBY PRESET CHANNEL 1,2,3

17
1. µcom/DSP Version display mode
1.1. Operationspecications
µcom/DSP version display mode:
When the set is started up in this mode, the version information is displayed.
Starting up:
Press the "ON/STANDBY" button to turn on the power while pressing the "STATUS" and "iPod 1" buttons.
Now, press the "STATUS" button to the display the 2nd item information on the FL Display.
b When the version is displayed on the FL Display, the version list is also displayed on the OSD.
1.2. Display Order
Error information(Refer to 1.3. Error display) → q Model destination information → w Firmware Package Version
→ e Main µ-com/MAIN FBL(1st Boot Loader) Version → r Sub µ-com/Sub FBL → t DSP version → y Audio PLD →
u GUI SFLASH
→ i Ethernet(DM860) 1st Boot Loader, Hardware ID → o Ethernet(DM860) 2nd Boot Loader, Rhapsody Flag
→ Q0 Ethernet(DM860) IMAGE → Q1 Ethernet(DM860)MAC ADDRESS information
→ Q2 MultEQ Pro APP(Displayed when Audyssey Pro is complete)
→ Q3 MultEQ Pro ICL(Displayed when Audyssey Pro is complete
qModel destination information :
Upper
AVR2312 E3 :****
Lower
S/N. **********
w Firmware Package Version :
Upper
Firm. Package
Lower
Ver.:****
e Main µ-com & MAIN FBL version :
Upper
Main :**.**
Lower
Main FBL :**.**
r Sub µ-com & Sub FBL :
Upper
Sub :**.**
Lower
Sub FBL :**.**
tDSP ROM :
Upper
DSP :**.**
Lower
y Audio PLD :
Upper
Audio PLD:**.**
Lower
u GUI SFLASH :
Upper
GUI :********
Lower

18
i Ethernet(DM860) 1st Boot Loader, Hardware ID :
Upper
Ethernet FBL
Lower
******-AA
o Ethernet(DM860) 2nd Boot Loader, Rhapsody Flag :
Upper
Ethernet SBL
Lower
*************-BB
Q0 Ethernet(DM860) IMAGE :
Upper
Ethernet IMG
Lower
*************
Q1 Ethernet(DM860)MAC ADDRESS information :
Upper
*Ethernet MAC
Lower
******-******
Q2 MultEQ Pro APP :
Upper
*MultEQ Pro APP
Lower
**.**.**.****
Q3 MultEQ Pro ICL :
Upper
*MultEQ Pro ICL
Lower
**.**.**.****

19
1.3. Error display
See the following table for each "Error information" display and its explanation (status).
Display order is q,w,e,r,t,y,u,i.
Condition Status FL Display Trouble shooting
q
Firm Check
NG
Compared with the destination setting
on the board. This is displayed when the
model name or destination information
written into the rmware does not match.
(b1)
FIRM ERROR
• Please check the
destination-resistors
(R2060/R2061, HDMI
B'D).
• Please write the
rmware of correct
destination.
w
GUI Version
NG
Error occurs in GUI version and Main
μ-com version.(b2) GUI VER. ERROR
• Please check the
rmware of correct
version.
e
SUB NG No response from SUB microcomputer. SUB ERROR 01
• Please check SUB
(IC231) and arroud
circuits.
r
DIR NG No response from DIR DIR ERROR 01
• Please check DIR
（IC403/IC404/IC405,
HDMI B'D) and around
circuits.
t
DSP NG
When DSP code boot is performed, the
DSP FLAG0 port does not change to "H"
even if DSP reset is executed. DSP ERROR 01
• Please check DSP
（IC408, HDMI B'D)
and around circuits.
Before DSP command is issued, the DSP
BUSY port does not change to "L". DSP ERROR 02
When DSP data read is performed,
executing WRITE="L" does not result in
ACK="H".
DSP ERROR 03
When DSP data read is performed,
executing REQ="L" does not result in
ACK="L".
DSP ERROR 04
When DSP data writing is performed,
executing WRITE="H" does not result in
ACK="H".
DSP ERROR 05
When DSP data writing is performed,
executing REQ="L" does not result in
ACK="L".
DSP ERROR 06
y
IP SCALER
NG
An error has occurred in the i/p Scaler
(ADV8002)initial settings. The error is a
DDR memory Loopback Test error.
IP SCALER ERR 01
• Please check
ADV8002 (IC151) and
arroud circuits.
u
E2PROM NG Error occurs in E2PROM checksum.(*** is a block address number.) E2PROM ERR***
i
Both DSP /
EEPROM OK (No error display, version display only)
Status FL Display
b1, b2
The written Firmware and product settings
(model name, brand name, destination)
are compared. If Firmware that is not
designed for this product is written, ▲ is
displayed in the rst column, as shown on
the right. s
–
Main :**.**
–
SUB :**.**
–
DSP :**.**
–
Audio PLD:**.**
–
GUI :********

20
2. Errors checking mode (Displaying the protection history)
2.1. Operationspecications
Error mode (Displaying the protection history):
When the set is started up in this mode, the error information is displayed.
Starting up:
•Commoninallthemodels
Press the "ON/STANDBY" button to turn on the power while pressing the "STATUS" and "SLEEP" buttons. The error
(protection history display) mode is set.
Now, press the "STATUS" button to turn on the FL display.
2.2. About the display on the FL display
When the "STATUS" button is pressed after setting the error (protection history display) mode is set, a history like the one
shown below is displayed, depending on the conditions.
(1) Normal (when there has been no protection incident)
Upper
PROTECT HISTORY
Lower
:NO PROTECT
(2) For ASO (when the last protection incident was ASO protection)
Upper
PROTECT HISTORY
Lower
:ASO
Cause: The line between speaker terminals is shorted, or speakers with impedance of less than the rated value.
Supplementary information: As the excess current is detected after operation of the speaker relay, a short on the
speaker terminal and the connected speaker can be identied.
If the power is turned on without correcting the abnormality, the protection function will work about 5 seconds later
and the power supply will be shut off.
(3) For DC (when the last protection incident was DC protection)
Upper
PROTECT HISTORY
Lower
:DC
Cause: DC output of the power amplier is abnormal.
If the power is turned on without correcting the abnormality, the protection function will work about 5 seconds later
and the power supply will be shut off.
(4) For THERMAL (when the last protection incident was THERMAL protection)
Upper
PROTECT HISTORY
Lower
:THERMAL *
z: A~D
Cause: The temperature of the heat sink is excessive.
If the power is turned on without correcting the abnormality, the protection function will work about 5 seconds later
and the power supply will be shut off.
b Additional causes of protection can be due to loose connections, associated components, Microprocessor, etc.
When the "STATUS" button is pressed again after the above protection history as shown above is displayed, the normal
display reappears.(Refer to "PROTECTION DIAGRAM" 23 page.)