Marantz HD-DAC1 User manual

D/A CONVERTER
HD-DAC1 /N1SG/N1B/U1B/K1B/FN
HD-DAC1
S1095V03DM/DG1509
Copyright 2015 D&M Holdings Inc. All rights reserved.
WARNING: Violators will be prosecuted to the maximum extent possible.
Ver. 3
•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

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
INSTRUCTIONS FOR HANDLING SEMI-CONDUCTORS AND
OPTICAL UNIT ..........................................................................7
1. Ground for Human Body ......................................................7
2. Ground for Workbench.........................................................7
TECHNICAL SPECIFICATIONS................................................9
DIMENSION .............................................................................10
CAUTION IN SERVICING........................................................11
Initializing this unit ...................................................................11
Service Jig ..............................................................................11
DISASSEMBLY........................................................................12
1. SIDE PANEL ......................................................................14
2. TOP COVER ......................................................................15
3. FRONT PANEL ASSY ........................................................16
4. DIGITAL PCB .....................................................................19
5. SUB TRANS PCB ..............................................................20
6. MAIN POWER PART PCB.................................................21
7. TRANS POWER ................................................................21
SPECIAL MODE .....................................................................22
Special Mode Conguration Buttons.......................................22
1. Version check display mode...............................................23
2. Display / LED check mode.................................................24
3. Factory reset mode ............................................................24
4. Auto standby test mode .....................................................24
PROCEDURE AFTER REPLACING THE MICROPROCESSOR,
ETC ..........................................................................................25
FIRMWARE UPDATE PROCEDURE ......................................25
ADJUSTMENT.........................................................................33
TROUBLE SHOOTING............................................................34
1. Power not turn on...............................................................34
2. FLD doesn't Light ...............................................................36
3. No Sound, Noise generated...............................................38
4. The power can not be turned on .......................................45
MEASURING METHOD AND WAVEFORMS ..........................47
BLOCK DIAGRAM...................................................................50
POWER DIAGRAM..................................................................51
WIRING DIAGRAM..................................................................52
PRINTED Circuit BOARDS.....................................................53
SCHEMATIC DIAGRAMS .......................................................56
DIGITAL 1/3 ...........................................................................56
SCHEMATIC DIAGRAMS (2/6)...............................................57
DIGITAL 2/3.............................................................................57
SCHEMATIC DIAGRAMS (3/6)...............................................58
DIGITAL 3/3.............................................................................58
SCHEMATIC DIAGRAMS (4/6)...............................................59
POWER...................................................................................59
SCHEMATIC DIAGRAMS (5/6)...............................................60
AUDIO.....................................................................................60
SCHEMATIC DIAGRAMS (6/6)...............................................61
FRONT....................................................................................61
EXPLODED VIEW ...................................................................62
PACKING VIEW .......................................................................63
SEMICONDUCTORS ...............................................................64
1. IC's .....................................................................................64
2. DISPLAY ............................................................................80
2
CONTENTS

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, 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 wiring
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 wiring
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 wiring
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 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.
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.
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

nAnalog output
Channels: 2-channels
Playable frequency range: 2 Hz - 96 kHz
Playable frequency response: 2 Hz - 50 kHz (-3 dB)
(DSD mode, PCM sampling frequency: 192 kHz)
2 Hz - 20 kHz
(PCM sampling frequency: 44.1 kHz)
S/N: 110 dB (Audible range)
Dynamic range: 106 dB (DSD/192 kHz) (Audible range)
101 dB (44.1 kHz)
Harmonic distortion: 0.0012 % (1 kHz, Audible range)
Unbalanced output
• Fixed: 2.3 V RMS (PCM)
1.7 V RMS (DSD)
• Variable: 2.3 V RMS (PCM) (Volume max./Gain: Low)
1.7 V RMS (DSD) (Volume max./Gain: Low)
Headphone output: 800 mW/32 Ω/ohms (Volume max.)
• Analog input
Input sensitivity/impedance: 200 mVrms/22 kΩ/kohms
Digital input
Coaxial: 0.5 Vp-p / 75 Ω/ohms
Optical : -27 dBm or lator
USB (Front): USB Type A (USB 2.0 Full speed)
USB (Rear): USB Type B (USB 2.0 High speed)
nGeneral
Power supply voltage/frequency: AC230 V, 50/60 Hz(N), AC100V, 50/60Hz(F), AC120V,60Hz(U)
Power consumption (EN60065) : 35 W
Power consumption in standby mode: 0.3 W
TECHNICAL SPECIFICATIONS
9

6 17/64 (159)
1 37/64
(40)
2 1/64
(51)
9 27/32 (250)
25/64
(10)
3 5/32 (80)
3 35/64 (90)
9 27/32 (250)
7 11/64 (182) 1 11/32
(34)
1 11/32
(34)
15/32
(12)
10 5/8 (270)
5/16
(8)
DIMENSION
Unit : in. (mm)
Weight : Weight: 11lbs (5 kg)
10

Initializing this unit
This unit initialization should be performed when the μcom, peripheral parts of μcom, and Digital
PCB. were replaced.
1. Turn off the power unplug the power cord.
2. Hold down buttons X button and "SETUP" button at the same time and connect the power plug to an outlet.
3. The information shown on the display changes each time the button "SETUP" is pressed.
" Factory Reset " will appear on the display, wait for 2 seconds or more as it is. Initialization will begin.
Service Jig
When you update the rmware , you can use the following JIG.
(RS232C to internal connector conversion adapter without 7P FFC kit )
Please order it from Marantz Ofcial Service Distributor in your region if necessary.
00DSPK-581 : WRITING KIT (without FFC) : 1 Set
606050028012P : 7P FFC(1.0)L=240 : 1 Set
(See 25 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.
Power operation
button (X)
INPUT
SELECTOR
SETUP
CAUTION IN SERVICING
11

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
3. FRONT PANEL ASSY
and "EXPLODED VIEW"
FRONT PCB
(Ref. No. of EXPLODED VIEW : C1)
VOLUME PCB
(Ref. No. of EXPLODED VIEW : C1-1)
HEADPHONE PCB
(Ref. No. of EXPLODED VIEW : C1-2)
USB-A PCB
(Ref. No. of EXPLODED VIEW : C1-3)
TRANS POWER
See "DISASSEMBLY
7. TRANS POWER
and "EXPLODED VIEW"
MAIN TRANS
(Ref. No. of EXPLODED VIEW : C4)
AUDIO POWER AMP ASSY
See "EXPLODED VIEW"
AUDIO POWER AMP PCB
(Ref. No. of EXPLODED VIEW : C3-2)
CLAMP PCB
(Ref. No. of EXPLODED VIEW : nothig)
DIGITAL PCB
See "DISASSEMBLY
4. DIGITAL PCB
and "EXPLODED VIEW"
DIGITAL PCB
(Ref. No. of EXPLODED VIEW : C2)
MAIN POWER PART PCB
See "DISASSEMBLY
6. MAIN POWER PART PCB
and "EXPLODED VIEW"
MAIN POWER PART PCB
(Ref. No. of EXPLODED VIEW : C3)
SIDE PANEL
See "DISASSEMBLY
1. SIDE PANEL
and "EXPLODED VIEW"
(Ref. No. of EXPLODED VIEW : P8/P9)
SUB TRANS PCB
See "DISASSEMBLY
5. SIDE PANEL
and "EXPLODED VIEW"
SUB TRANS PCB
(Ref. No. of EXPLODED VIEW : C3-1)
TOP COVER
See "DISASSEMBLY
2. TOP COVER
and "EXPLODED VIEW"
TOP COVER
(Ref. No. of EXPLODED VIEW : M6)
12

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 set.
• The photograph is HD-DAC1N1SG.
The viewpoint of each photograph
(Shooting direction) Top view
Front side
Shooting
direction: D Shooting
direction: C
↑Shooting direction: A↑
↓Shooting direction: B↓
13

1. SIDE PANEL
Proceeding : SIDE PANEL
(1) Remove the screws.
(2) Remove the screws.
(2) Slide to the front side of the side panel, and remove to lift from the bottom.
View from the rear
View from the bottom
TOP
bottom
View from the side
14

2. TOP COVER
Proceeding : SIDE PANEL →TOP COVER
(1) Remove the screws.
View from the right side
View from the left side
View from the rear side
15

3. FRONT PANEL ASSY
Proceeding : SIDE PANEL →TOP COVER →FRONT PANEL ASSY
(1) Remove the screws.
(2) Cut the wire clampers and remove the connector wires. Remove the screws.
View from the bottom
View from the top
View from the left View from the right
View from the top
CN81
FFC
CN12
CUT
CUT
16

(3)After pull the front panel, remove the connectors.
View from the top
View from the bottom
CN826
CN85
17

(4) When replacing the front panel, you may the ring of POWER button does not t.
In such a case, do the following.
Piled the inner mold and front panel.
View from the inside of the front panel + inner mold
Please press a little screwdriver hook arrow portion after you have caught before the hook of the 2 other places.
18

4. DIGITAL PCB
Proceeding : SIDE PANEL →TOP COVER →DIGITAL PCB
(1) Remove the connector wires. Remove the screws.
View from the top
CN12
CN11
FFC
CN12
View from the rear
CUT
19

5. SUB TRANS PCB
Proceeding : SIDE PANEL →TOP COVER →SUB TRANS PCB
(1) Remove the connector wires and remove the screws. Pull out the PCB.
(2)Note at the time of assembly. Connect to the connector of WF94 sure.
When the connector is not connected, power will not turn on.
View from the top SUB TRANS PCB
CN92
CN91
View from the rear
View from the left side
View from the top
WF94
20