Marantz NR1605/U1B User manual

AV SURROUND RECEIVER
NR1605 /U1B/N1B/N1SG
/FB
NR1605
S0861-1V02DM/DG1406
Copyright 2014 D&M Holdings Inc. All rights reserved.
WARNING: Violators will be prosecuted to the maximum extent possible.
Ver. 2
•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.
Please refer to the
MODIFICATION NOTICE.
Service
Manual

Contents
ABOUT THIS MANUAL.............................................................3
What you can do with this manual ............................................3
Using Adobe Reader (Windows version) ..................................4
SAFETY PRECAUTIONS ..........................................................6
NOTE FOR SCHEMATIC DIAGRAM.........................................7
NOTE FOR PARTS LIST ...........................................................7
TECHNICAL SPECIFICATIONS................................................9
DIMENSION ...............................................................................9
Precautions During Service...................................................10
Initializing This Unit .................................................................10
Service Jigs.............................................................................10
DISASSEMBLY........................................................................11
1. FRONT PANEL ASSY ........................................................13
2. RADIATOR ASSY...............................................................14
3. REG ASSY.........................................................................15
4. HDMI PCB..........................................................................15
5. AV PCB ..............................................................................16
6. SPK PCB............................................................................17
7. POWER TRANS ................................................................17
8. SMPS PCB.........................................................................18
SPECIAL MODE ......................................................................19
Special Mode Conguration Buttons.......................................19
1. Version Display Mode ........................................................20
2. PANEL / REMOTE LOCK Selection Mode.........................24
3. Selection Modes for Service-related Operations................25
DIAGNOSTIC PATH DIAGRAM..............................................29
4. Protection Pass Mode........................................................53
5. CX870 / CY920 Reboot mode............................................53
6. CX870 / CY920 Initialization mode ....................................54
Service Jigs.............................................................................55
Procedure after Replacing the Microprocessor, etc. ..........57
Firmware Update Procedure..................................................57
1. Updating by USB................................................................57
2. Updating by DPMS.............................................................66
ADJUSTMENT.........................................................................73
SURROUND MODES AND PARAMETERS............................74
TROUBLE SHOOTING............................................................77
1. POWER..............................................................................77
2. Analog video ......................................................................78
3. HDMI/DVI...........................................................................82
4. AUDIO................................................................................84
5. Network/Bluetooth/USB .....................................................87
6. SMPS.................................................................................92
CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK .............94
LEVEL DIAGRAM....................................................................95
BLOCK DIAGRAM.................................................................101
POWER DIAGRAM................................................................102
WIRING DIAGRAM................................................................103
PRINTED Circuit BOARDS...................................................104
SCHEMATIC DIAGRAMS (1/30 ) ..........................................109
01-HDMI SW1 .......................................................................109
02-HDMI SW2 .......................................................................110
03-NET_PHY......................................................................... 111
04-BlueTooth .........................................................................112
05-CPU_LEVEL_CHG ..........................................................113
06-DIGITAL_CNT..................................................................114
07-CPU .................................................................................115
08-Sub_CPU .........................................................................116
09-FRONT_HDMI .................................................................117
10-DSP..................................................................................118
11-ADV8003..........................................................................119
12-ADV8003_DDR................................................................120
13-D.SUPPLY........................................................................121
14-HDMI_TX .........................................................................122
15-DIR_A.PLD ......................................................................123
16-V.PLD ...............................................................................124
17-MAIN_DAC ......................................................................125
18-ADV7850..........................................................................126
19-CX870JUNCTION............................................................127
20-AV (1/3) ............................................................................128
21-AV (2/3) ............................................................................129
22-AV (3/3) ............................................................................130
23-AMP (1/2).........................................................................131
24-AMP (2/2).........................................................................132
25-SPK..................................................................................133
26-SIDE CNT ........................................................................134
27-FRONT.............................................................................135
28-SMPS...............................................................................136
29-REG FCNT.......................................................................137
30-FRONT CONNECTOR.....................................................138
EXPLODED VIEW..................................................................139
PACKING VIEW .....................................................................141
SEMICONDUCTORS .............................................................142
1. IC's ...................................................................................142
2. FL DISPLAY .....................................................................161
2

Jump to the target of a schematic
diagram connector
Click the Ref. No. of the target connector in the red
box around a schematic diagram connector.
•The screen jumps to the target connector.
•Pagemagnicationstaysthesameasbeforethe
jump.
CP401
CP106
v
ABOUT THIS MANUAL
Read the following information before using the service manual.
What you can do with this manual
Search for a Ref. No. (phrase)
(Ctrl+Shift+F)
You can use the search function in Acrobat Reader to
search for a Ref. No. in schematic diagrams, printed
wiring circuit diagrams, block diagrams, and parts
lists.
1.Press Ctrl+Shift+Fonthekeyboard.
• The Search window appears.
2.EntertheRef.No.youwanttosearchforinthe
Search window, and then click the Search button.
•A list of search results appears.
3.Click an item on the list.
• The screen jumps to the page for that item, and the
searchphraseisdisplayed.
Ctrl
Shift
F
3

Using Adobe Reader (Windows version)
• Properties
Click this button and check that the printer is set to a
suitable paper size.
• Page to print
Select the following checkbox.
"More Options" : "Current View"
• Page Sizing & Handling
Select the following checkbox.
"Size" / "Size Options" : "Fit"
Add notes to this data (Sign)
TheSignfunctionletsyouaddnotestothedatain
this manual.
Savetheleonceyouhavenishedaddingnotes.
[Example using Adobe Reader X]
On the "View" menu, click "Sign".
• The Sign pane appears.
[Example using Adobe Reader 9]
On the "Document" menu, click "Sign".
Magnify schematic / printed circuit
board diagrams - 1
(Ctrl+Space, mouse operation)
Press Ctrl+Spaceonthekeyboardanddragthe
mousetoselecttheareayouwanttoview.
• Theselectedareaismagnied.
• Whenyouwanttomovetheareashown,hold
down Space and drag the mouse.
• Whenyouwanttoshowafullpageview,press
Ctrl+0onthekeyboard.
Ctrl Space
0
Print a magnied part of the manual
ThePropertiesdialogboxandfunctionswillvarydependingonyourprinter.
1. Dragthemousetomagnifythepartyouwanttoprint.
2. On the "File" menu, click "Print".
3. CongurethefollowingsettingsinthePrintdialogbox.
4. Click the Print button to start printing.
4

Magnify schematic / printed circuit
board diagrams - 2
(Pan & Zoom function)
ThePan&Zoomfunctionletsyouseewhichpartof
amagnieddiagramisbeingshowninaseparate
window.
[Example using Adobe Reader X]
On the "View" menu, point to "Zoom", and then click
"Pan & Zoom".
• The Pan & Zoom window appears on the screen.
[Example using Adobe Reader 9]
On the "Tools" menu, point to "Select & Zoom", and
then click "Pan & Zoom Window".
Magnify schematic / printed circuit
board diagrams - 3
(Loupe Tool function)
TheLoupeToolfunctionletsyoumagnifyaspecic
part of a diagram in a separate window.
[Example using Adobe Reader X]
On the "View" menu, point to "Zoom", and then click
"Loupe Tool".
• The Loupe Tool window appears on the screen.
[Example using Adobe Reader 9]
On the "Tools" menu, point to "Select & Zoom", and
then click "Loupe Tool Window".
5

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zmark
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
6

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
1.Partsindicatedby"nsp" on this table cannot be supplied.
2.Whenorderingapart,makeacleardistinctionbetween"1"and"I"(i)toavoidmis-supplying.
3.Apartorderedwithoutspecifyingitspartnumbercannotbesupplied.
4.Partindicatedby" ★" mark is not illustrated in the exploded view.
WARNING:Partsindicatedbythezmarkhavecriticalcharacteristics.UseONLYreplacementpartsrecommendedbythemanufacturer.
INSTRUCTIONS FOR HANDLING SEMI-CONDUCTORS AND OPTICAL UNIT
Electrostaticbreakdownofthesemi-conductorsoropticalpickupmayoccurduetoapotentialdifferencecausedby
electrostatic charge during unpacking or repair work.
1. GroundforHumanBody
Besuretowearagroundingband(1MΩ)thatisproperlygroundedtoremoveanystaticelectricitythatmaybe
chargedonthebody.
2. GroundforWorkbench
Besuretoplaceaconductivesheetorcopperplatewithpropergrounding(1MΩ)ontheworkbenchorothersurface,
wherethesemi-conductorsaretobeplaced.Becausethestaticelectricitychargeonclothingwillnotescapethrough
thebodygroundingband,becarefultoavoidcontactingsemi-conductorswithyourclothing
<Incorrect>
CBA
Grounding Band
Conductive Sheet or
Copper Plate
1MΩ
1MΩ
<Correct>
CBA
7

Personal notes:
8

TECHNICAL SPECIFICATIONS
nAudio section
• Power amplifier
Rated output :
Front :
50W+50W ( 8Ω, 20Hz - 20kHz with 0.08% T.H.D.)
70W+70W ( 6Ω, 1kHz with 0.7% T.H.D)
Center :
50W ( 8Ω, 20Hz - 20kHz with 0.08% T.H.D.)
70W ( 6Ω, 1 kHz with 0.7 % T.H.D.)
Surround :
50W+50W ( 8Ω, 20 Hz - 20 kHz with 0.08% T.H.D.)
70W+70W ( 6Ω, 1 kHz with 0.7 % T.H.D.)
Surround back:
50W+50W ( 8Ω, 20 Hz - 20 kHz with 0.08% T.H.D.)
70W+70W ( 6Ω, 1 kHz with 0.7 % T.H.D.)
Output connectors : 4～16Ω
nAnalog section
Input sensitivity/Input impedance : 130 mV/47 kΩ
Frequency response : 10 Hz – 100 kHz — +1, –3 dB (Direct mode)
S/N : 98 dB(IHF-A, weighted, Direct mode)
nVideo section
• Standard video connectors
Input/output level and impedance : 1 Vp-p, 75 Ω
Frequency response : 5Hz – 10MHz — 0, –3 dB
• Color component video connector
Input sensitivity/Input impedance : Y 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
Reception frequency range : FM 87.5 MHz - 107.9 MHz(for U)
FM 87.5 MHz - 108.0 MHz(for N)
FM 76.0 MHz - 90.0 MHz(for F)
AM 520 kHz - 1710 kHz(for U)
AM 522 kHz - 1611 kHz(for N)
AM 522 kHz - 1629 kHz(for F)
Effective sensitivity : FM 1.2μV（12.8dBf）
AM 18 μV
50 dB sensitivity : MONO ― 2.8 μV (20.2 dBf)
S/N: MONO ― 70 dB (IHF-A weighted, Direct mode)
STEREO ― 67 dB (IHF-A weighted, Direct mode)
Distortion : MONO ― 0.7 % (1 kHz)
SRETEO ― 1.0 % (1 kHz)
nWireless LAN section
Network type
(wireless LAN standard): Conforming to Wi-Fi®z1
Security : WEP 64 bit, WEP 128 bit
WPA/WPA2-PSK (AES)
WPA/WPA2-PSK (TKIP)
Radio frequency : 2.4 GHz
No. of channels : 1 - 11 ch (for U)
1 - 13 ch (for N, F)
z1 The Wi-Fi® CERTIFIED Logo and the Wi-Fi CERTIFIED On-Product
Logo are registered trademarks of the Wi-Fi Alliance.
nBluetooth section
Communications system : Bluetooth Version 2.1 + EDR
(Enhanced Data Rate)
Transmission power : Maximum 2.5 mW (Class 2)
Maximum communication range : Approx. 32.8 ft/10 m in line of sight
Frequency band : 2.4 GHz band
Modulation scheme : FHSS (Frequency-Hopping Spread Spectrum)
Supported proles : A2DP 1.2 (Advanced Audio Distribution Prole)
AVRCP 1.4 (Audio Video Remote Control Prole)
Corresponding codec : SBC, AAC
Transmission range (A2DP) : 20 Hz - 20,000 Hz
nGeneral
Power supply : (for U) : AC 120 V, 60 Hz
(for N) : AC 230 V, 50 Hz / 60Hz
(for F) : AC 100V, 50/60Hz
Power consumption : 250W
Power consumption in standby mode : 0.2W
Power consumption in CEC standby mode : 0.5W
Power consumption in network standby mode : 2.7W
For purposes of improvement, specications and design are subject to
change without notice.
DIMENSION
Unit : in. (mm) Weight： 18 lb 15 oz (8.6 kg)
17 21/64 (440)
2 11/64
(55)
2 31/64
(63)
35/64
(14)
13 25/64 (340)
2 11/64
(55)
1 31/32 (50) 1 31/32 (50)
5/8
(16)
1 17/64
(32)
8 17/64 (210)
12 29/32 (328) 14 51/64 (376)
3 37/64
(91)
4 9/64 (105)
6 13/16 (173)
9

PRECAUTIONS DURING SERVICE
Initializing This Unit
Initialize this unit if you have replaced the microcomputer, one of the parts around the microcomputer, or the digital PCB.
1. Press the power button to turn off the power.
2. Hold down buttons "ZONE2 SOURCE" and "INTERNET RADIO" at the same time and press the power button to turn
on the power.
3. Release the buttons after conrming that the display ashes in intervals of approximately 1 second.
＊The unit is initialized.
NOTE：• If the status in step 3 does not occur, start again from step 1.
• Initializing the device restores settings congured by the user to the factory settings. Take note of your settings beforehand
and recongure them after initialization.
Service Jigs
The following jigs (extension cable kit) are used when repairing the PCBs.
Order the jigs from your dealer if necessary.
8U- 110084S : EXTENSION UNIT KIT : 1 Set
(See 55 page)
ZONE2 SOURCEXINTERNET RADIO
10

DISASSEMBLY
• Remove each part in the order of the arrows below.
• Reassemble removed parts in the reverse order.
• Read "Precautions During Work" before reassembling removed parts.
• If wire bundles are removed or moved during adjustment or part replacement, reshape the wires after completing the
work. Failure to shape the wires correctly may cause problems such as noise.
FRONT PANEL ASSY
See "DISASSEMBLY"
1. FRONT PANEL ASSY
and "EXPLODED VIEW"
HEADPHONE&SETUP MIC PCB
(Ref. No. of EXPLODED VIEW : 09)
F-HDMI PCB
(Ref. No. of EXPLODED VIEW : 12)
FRONT PCB
(Ref. No. of EXPLODED VIEW : 14)
BT PCB
(Ref. No. of EXPLODED VIEW : 42)
USB PCB
(Ref. No. of EXPLODED VIEW : 51)
TOP COVER
POWER TRANS
See "DISASSEMBLY"
7. POWER TRANS
and "EXPLODED VIEW"
POWER TRANS
(Ref. No. of EXPLODED VIEW : 31)
RADIATOR ASSY
See "DISASSEMBLY"
2. RADIATOR ASSY
and "EXPLODED VIEW"
GUIDE CENTER FRONT PCB
(Ref. No. of EXPLODED VIEW : 15)
GUIDE CENTER PCB
(Ref. No. of EXPLODED VIEW : 16)
GUIDE PCB(L)
(Ref. No. of EXPLODED VIEW : 18)
AMP PCB
(Ref. No. of EXPLODED VIEW : 24)
GUIDE BT
(Ref. No. of EXPLODED VIEW : 48)
HDMI PCB
See "DISASSEMBLY"
4. HDMI PCB
and "EXPLODED VIEW"
HDMI PCB ASSY
(Ref. No. of EXPLODED VIEW : 47)
CX870 MODULE ASSY
(Ref. No. of EXPLODED VIEW : 60)
CX870 MIDDLE ASSY
(Ref. No. of EXPLODED VIEW : 61)
AV PCB
See "DISASSEMBLY"
5. AV PCB
and "EXPLODED VIEW"
FRONT_CNT PCB
(Ref. No. of EXPLODED VIEW : 43)
SIDE_CNT PCB
(Ref. No. of EXPLODED VIEW : 46)
AUDIO_VIDEO PCB
(Ref. No. of EXPLODED VIEW : 45)
SPK PCB
See "DISASSEMBLY"
6. SPK PCB
and "EXPLODED VIEW"
SPEAKER PCB
(Ref. No. of EXPLODED VIEW : 38)
SMPS PCB
See "DISASSEMBLY"
8. SMPS PCB
and "EXPLODED VIEW"
SMPS PCB
(Ref. No. of EXPLODED VIEW : 37)
REG ASSY
See "DISASSEMBLY"
3. REG ASSY
and "EXPLODED VIEW"
REG_CNT PCB
(Ref. No. of EXPLODED VIEW : 39)
REG PCB
(Ref. No. of EXPLODED VIEW : 40)
11

Explanatory Photos for DISASSEMBLY
• The angles from which the photos are taken are shown by "Photo angle：A, B, C, D".
• See the diagram below about the shooting direction of each photograph.
• Photographs with no shooting direction indicated were taken from the top of the unit.
• The photograph is NR1605U model.
The viewpoint of each photograph
(Shooting direction:X)［View from the top］
Front side
Shooting
direction: D Shooting
direction: C
↑Shooting direction: A↑
↓Shooting direction: B↓
12

1. FRONT PANEL ASSY
Proceeding : TOP COVER →FRONT PANEL ASSY
(1) Remove the screws.
(2) Cut the wire clamp, then remove the connector wires and FFC. Remove the Style pin and screws.
(3) Remove the screws.
View from the bottom
Front side
FFC
FFC
N7005
N7002
CP4401
CUT
STYLE PIN
Shooting direction: DShooting direction: C
13

2. RADIATOR ASSY
Proceeding : TOP COVER →RADIATOR ASSY
(1) Remove the screws.
(2) Remove the screws.
(3) Remove the connector wire and STYLE PIN.
(4) Remove the connector wire.
View from the bottom
FFC
FFC
N7005
N7002
CP4401
STYLE PIN
CP4800
CP4801
CP4803
CP4802
14

3. REG ASSY
Proceeding : TOP COVER →RADIATOR ASSY →REG ASSY
(1) Remove the screws. Remove the connector.
4. HDMI PCB
Proceeding : TOP COVER →HDMI PCB
(1) Cut the wire clamp, then remove the connector wires and FFC. Remove the STYLE PIN.
(2) Remove the screws.
CP4604
CP4615
CP4614
Front side
FFC
FFC
N7005
N7002
CON1
CON2 N1029
N1019
CP4142
CUT
STYLE PIN
CUT
STYLE PIN
15

(3) Remove the connector.
5. AV PCB
Proceeding : TOP COVER →HDMI PCB →AV PCB
(1) Remove the connector wire. Remove the screws.
Front side
N1033N1018
N1014
N1015
N1013
N1016
Front side
CP4002
CP4000
CP4615
CP4614
16

6. SPK PCB
Proceeding : TOP COVER →HDMI PCB →AV PCB →SPK PCB
(1) Remove the connector wire and STYLE PIN. Remove the PCB HOLDER and screws.
7. POWER TRANS
Proceeding : TOP COVER →HDMI PCB →POWER TRANS
(1) Remove the connector wire and STYLE PIN.
CP4001
STYLE PIN
CP4800 CP4802 CP4803
STYLE PIN
PCB HOLDER
CP4001
STYLE PIN
CP4604
STYLE PIN
CP4142
17

(2) Remove the connector wire and STYLE PIN.
(3) Remove the screws.
NOTE : It will separate and TRANS will fall from SET, if screws is removed.
8. SMPS PCB
Proceeding : TOP COVER →SMPS PCB
(1) Remove the connector wire. Remove the screws.
See "EXPLODED VIEW" for instructions on how to remove each PCB of the "SMPS PCB".
CP4401
STYLE PIN
View from the bottom
18

SPECIAL MODE
Special Mode Conguration Buttons
b No. 1 - 12 : Hold down buttons A, B and C at the same time and press the power button to turn on the power.
b No. 13 ： Press the A and B buttons simultaneously while inserting the AC plug to turn the power on.
No. Mode Button A Button B Button C Contents
1Version Display
(u-COM / DSP Error Display) DIMMER STATUS –
Displays the version of rmware such as the main rm-
ware or DSP, etc. Errors that have occurred are displayed.
(See 20 page)
2 Protection History Display Mode ZONE2
SOURCE STATUS - Displays the protection occurrence history. (See 49 page)
3Check the Video/Audio pass
Mode ↑↑↑
This is a special mode for service conrmation used during
repair work to simplify the conrmation work for the Au-
dio channel/video channel.
(See 27 page)
4 TUNER step ↑ ↑ ↑
Enables reception STEP of the ANALOG TUNER to be
changed.
(See 52 page)
5 Operation INFO ↑ ↑ ↑
Displays the total operating time of the set, number of
times the power was switched on, and number of occur-
rences of each protection.
(See 51 page)
6
User Initialization mode
(Settings for the Installer Setup are
not initialized.)
M-DAX ZONE2
SOURCE -Initializes backup data. (Settings for the Installer Setup are not initialized.)
7
Factory Initialization mode
(Initialization includes settings for the
Installer Setup.)
ZONE2
SOURCE
INTERNET
RADIO -Initializes backup data. (Initialization includes settings for the Installer Setup.)
8Mode for preventing remote
control acceptance M-DAX DIMMER -
Start this unit in the PANEL/REMOTE LOCK selection mode
so that PANEL LOCK and Remote Lock can be selected as
ON or OFF. (See 24 page)
9PANEL LOCK mode
(with Volume) ↑ ↑ -
This function prevents reception of all keys/encoders
(including VOLUME) other than the power supply button
on the Front Panel.
10 PANEL LOCK mode
(without Volume) ↑ ↑ -
This function prevents reception of all keys/encoders oth-
er than the power supply button and VOLUME encoder on
the Front Panel.
11 Panel Lock Release ↑ ↑ - Function for Releasing the PANEL LOCK
12 Protection pass mode DIMMER STATUS SOUND
MODE
Enables the power to be turned on when protection de-
tection is in the stopped state.
(See 53 page)
13 Forced USB All Device Write Mode DIMMER SOUND
MODE -
Mode used when this unit cannot be recovered.
Forcibly switches this unit to USB update mode.
(See 59 page)
ZONE2
SOURCE
INTERNET
RADIO
M-DAX STATUS
DIMMER
XSOUND
MODE
19

1. Version Display Mode
1.1. Actions
Version information is displayed when the device is started in this mode.
1.2. Starting up
Hold down buttons "DIMMER" and "STATUS" at the same time and press the power button to turn on the power.
Press the "STATUS" button after this to show the information in section 1.3 on the display.
b A version list is also displayed on GUIs while the version appears on the display.
1.3. Display Order
Error information(See "1.4. Error display") → q Model destination information → w Firmware Package Version
→ e Main µ-com → r Main 1st Boot Loader → t DSP ROM → y Audio PLD → u Video PLD → i GUI SFLASH
→ o Ethernet 1st Boot Loader, Hardware ID → Q0 Ethernet 2nd Boot Loader, Rhapsody Flag
→ Q1 Ethernet IMAGE → Q2 Ethernet MAC ADDRESS information → Q3 BT MAC Address information
q Model destination information :
FLD N R 1 6 0 5 U *
FLD N R 1 6 0 5 N *
FLD N R 1 6 0 5 K *
w Firmware Package Version :
FLD Package :****
e Main µ-com Version :
FLD Main :****####*
*
：
Main version, #： Sub version
r Main 1st Boot Loader :
FLD M a i n F B L : * * . * *
t DSP ROM :
FLD D S P : * * . * *
y Audio PLD :
FLD Audio PLD:**.**
u Video PLD
FLD Video PLD:**.**
i GUI SFLASH :
FLD GUI :@@$\****
@
：
Model code, $
：
Brand code, \
：
Region code, *
：
version
20