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Ver. 2
Please refer to the
MODIFICATION NOTICE.
SERVICE MANUAL
MODEL JP E3 E2 EK E2A E1C E1K EUT
DN-HD2500
PROFESSIONAL MEDIA PLAYER & CONTROLLER
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.
PROFESSIONAL BUSINESS COMPANY
TOKYO, JAPAN
X0330V.02 DE/CDM 0705
DN-HD2500
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 Please heed the points listed below during servicing and inspection.
Heed the cautions! Inspect for safety after servicing!
Spots requiring particular attention when servicing, such as Check that all screws, parts and wires removed or discon-
the cabinet, parts, chassis, etc., have cautions indicated on nected for servicing have been put back in their original posi-
labels or seals. Be sure to heed these cautions and the cau- tions, inspect that no parts around the area that has been
tions indicated in the handling instructions. serviced have been negatively affected, conduct an insulation
check on the external metal connectors and between the
Caution concerning electric shock! blades of the power plug, and otherwise check that safety is
ensured.
(1) An AC voltage is impressed on this set, so touching inter-
nal metal parts when the set is energized could cause
(Insulation check procedure)
electric shock. Take care to avoid electric shock, by for ex-
Unplug the power cord from the power outlet, disconnect the
ample using an isolating transformer and gloves when
antenna, plugs, etc., and turn the power switch on. Using a
servicing while the set is energized, unplugging the power
500V insulation resistance tester, check that the insulation re-
cord when replacing parts, etc.
sistance between the terminals of the power plug and the ex-
(2)There are high voltage parts inside. Handle with extra care ternally exposed metal parts (antenna terminal, headphones
when the set is energized. terminal, microphone terminal, input terminal, etc.) is 1M or
greater. If it is less, the set must be inspected and repaired.
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 CAUTION Concerning important safety parts
across them. Use gloves to protect your hands.
Many of the electric and structural parts used in the set have
Only use designated parts! special safety properties. In most cases these properties are
difficult to distinguish by sight, and using replacement parts
The set's parts have specific safety properties (fire resis- with higher ratings (rated power and withstand voltage) does
tance, voltage resistance, etc.). For replacement parts, be not necessarily guarantee that safety performance will be pre-
sure to use parts which have the same properties. In particu- served. Parts with safety properties are indicated as shown
lar, for the important safety parts that are marked ! on wiring below on the wiring diagrams and parts lists is this service
diagrams and parts lists, be sure to use the designated parts. manual. Be sure to replace them with parts with the designat-
ed part number.
Be sure to mount parts and arrange the
wires as they were originally! (1) Schematic diagrams ... Indicated by the ! mark.
For safety reasons, some parts use tape, tubes or other insu- (2) Parts lists ... Indicated by the ! mark.
lating materials, and some parts are mounted away from the
Using parts other than the designated parts
surface of printed circuit boards. Care is also taken with the
could result in electric shock, fires or other
positions of the wires inside and clamps are used to keep
dangerous situations.
wires away from heating and high voltage parts, so be sure to
set everything back as it was originally.
2
DN-HD2500
DISASSEMBLY
(Follow the procedure below in reverse order when reassembling.)
1. Top Panel Unit
(1) Remove 10 side screws with washer and pull up the Top Panel Unit.
Top Panel Unit
(2) After pull up the Top Panel Unit, turn the back forward and then pull out the three FFC cable showed in the below drawing.
Detail drawing
Notes: Do not pull out aslant to prevent FFC cable damage. Do not fail to pull AC cord from wall outlet before disconnect
the FFC cable.
If AC cord is remained plugged into wall outlet, power is kept supplied in the unit, which may cause damage.
3
DN-HD2500
2. LCD MODULE
(1) Draw out the LCD slowly in the direction of the arrow until just before the FFC touches the rib.
Note : The FFC could be damaged if it bangs against the rib.
LCD
rib FFC
(2) Slowly remove upwards, being careful that the FFC does not touch the rib.
4
DN-HD2500
SERVICE MODE
No Mode Operation and Function Display
Pressing the Deck1 or Deck2 PARAMETERS
knob and B ( ) button simultaneously,
turn on the power. Keep pressing the PARAM-
ETERS knob and B ( ) button until
"DENON DJ" is displayed. When the service
mode is set, the service mode's top menu
appears.
Turn the Deck1 or Deck2 PARAMETERS knob
to select each check mode, then press the
PARAMETERS knob to set each check mode.
Launching the 1) FUNCTION CHK
service mode and The various memories are initialized and
1
selecting the internal communications are checked. (For
check mode details, see No. 2.)
2) DECK1 SW CHK
The status (on or off) of the various buttons
of Deck1 is checked.
3) DECK2 SW CHK
The status (on or off) of the various buttons
of Deck2 is checked.
4) PANEL CHK
The FADERIN, PARAMETERS knob, JOG
dial and PITCH slider are checked.
To cancel the service mode, turn the power off.
5
DN-HD2500
No Mode Operation and Function Display
Turn the Deck1 or Deck2 PARAMETERS knob
to select "FUNCTION CHK" from the service
mode's top menu, then press the PARAME-
When the PARAMETERS
TERS knob to set the function check mode. knob is turned, items 0 to 9
1) ---Top menu--- are displayed, three items
The top of the menu for the function check at a time.
mode appears.
2) HD2500_Init
The contents of the preset memory are set to
the factory defaults.
3) *RAM_Check
Not yet used.
4) *CPU-DSP_Check
Not yet used.
5) HDD_Format 0 ---top menu---
The internal hard disk is formatted in FAT32. 1 HD2500_Init 0 ---top menu---
6) DRIVE_Check 2 *RAM_Check 1 HD2500_Init
DRIVE terminal transmission/reception is When the PARAMETERS 3 *CPU-DSP_Check 2 *RAM_Check
FUNCTION check checked. knob is pressed to set the
2 4 HDD_Format 3 *CPU-DSP_Check
mode 7) *Audio_OSC selected item, the item is
highlighted. 5 Drive_CHK 4 HDD_Format
Not yet used.
6 *Audio_OSC 5 Drive_CHK
8) TOUCH_Init 7 TOUCH_Init 6 *Audio_OSC
The JOG dial's touch detection level is set to 8 Heat_Run 7 TOUCH_Init
the factory default. 9 ---end menu--- 8 Heat_Run
9) Heat_Run 9 ---end menu---
The specified track is played repeatedly.
10) ---end menu---
The end of the FUNCTION check mode's
menu is displayed.
When the BACK ( ) button is pressed
while the FUNCTION check mode is being
executed or after the FUNCTION check mode
has been executed, the FUNCTION check
mode's top menu reappears.
When the BACK ( ) button is pressed
before the FUNCTION check mode has been
executed, the service mode's top menu reap-
pears.
Turn the Deck1 or Deck2 PARAMETERS knob
to select "HD2500_Init" from the FUNCTION
check mode's top menu, then press the
PARAMETERS knob to set "HD2500_Init"
mode.
The contents of the preset memory are set to
the factory defaults. For details on the preset
memory, see the DN-HD2500's Instruction
HD2500_Init Manual.
2.1 The checked contents and
mode "Complete!!" is displayed when initialization is results are displayed.
completed.
When the process
has completed
normally
When the process
has completed
abnormally
6
DN-HD2500
No Mode Operation and Function Display
Not yet used. Nothing happens when this is
selected.
RAM_Check
2.2
mode
Not yet used. Nothing happens when this is
selected.
CPU-DSP_Check
2.3
mode
7
DN-HD2500
No Mode Operation and Function Display
Turn the Deck1 or Deck2 PARAMETERS knob
to select "HDD_Format" from the FUNCTION
check mode's top menu, then press the
PARAMETERS knob to set "HDD_Format"
mode.
The progress of
formatting and the
message indicating
that formatting has
been completed are
displayed here.
When the PARAMETERS knob is pressed, the
format confirmation message appears.
When the PARAMETERS knob is pressed, for-
matting starts and the internal hard disk is for-
HDD_Format
2.4 matted in FAT32.
mode
Note that when the hard disk is formatted,
all the data on the hard disk is erased irre-
trievably. When the process
"Complete!!" is displayed when initialization is has completed
normally
completed normally, "Fail" is displayed if for-
When the process
matting is completed abnormally. has completed
In the latter case, formatting is not possible in abnormally
this mode. Use a disk formatter (freeware or
other, for example symantec's "Norton Ghost",
operation not guaranteed) to format the disk in
FAT32.
When the BACK ( ) button is pressed
before formatting has been executed, the
FUNCTION check mode's top menu reap-
pears.
Connect the transmission and reception pins
of the DRIVE terminal to an external device
(loop back) and supply DC +5.5V to the power
terminal.
Turn the Deck1 or Deck2 PARAMETERS knob
to select "DRIVE_Check" from the FUNCTION
check mode's top menu, then press the
The checking status
PARAMETERS knob to set "DRIVE_Check"
and results are
mode.
displayed here.
DRIVE_Check Data is transmitted from the DRIVE terminal
2.5
mode and whether or not the sent data can be
received is checked.
The checking status and results are displayed.
When the process
has completed
normally
When the process
has completed
abnormally
8
DN-HD2500
No Mode Operation and Function Display
Not yet used. Nothing happens when this is
selected.
2.6 Audio_OSC mode
9
DN-HD2500
No Mode Operation and Function Display
Turn the Deck1 or Deck2 PARAMETERS knob
to select "TOUCH_Init" from the FUNCTION
check mode's top menu, then press the
PARAMETERS knob to set "TOUCH_Init"
mode.
The detection level value and detection thresh-
old value stored in the EPROM in the touch
sensor's IC are rewritten with the factory
default values and the touch sensor IC is ini-
tialized.
When the process has completed normally,
"Complete!!" is displayed.
UP, R, DOWN and L display section
Displays the touch detection counter value
when the power is turned on.
Judge (70 300) display section
"OK" is displayed if the touch detection
counter value when not being touched is
between 70 and 300. If not, "NG" [No Good] is
displayed.
Step1 display section
Displays the progress of the touch sensor IC's
initialization process.
1) Complete DECK1 Init
Indicates that reading of the touch detection
counter value when the Deck1 JOG disc is
not being touched is completed.
TOUCH_Init 2) Complete DECK2 Init
2.7
mode Indicates that reading of the touch detection
counter value when the Deck2 JOG disc is
not being touched is completed.
3) Complete DECK1 Teaching
Indicates that "verify check" of the Deck1
touch detection system data (detection level
value and detection threshold value) is com-
pleted.
4) Complete DECK2 Teaching
Indicates that "verify check" of the Deck2
touch detection system data (detection level
value and detection threshold value) is com-
pleted.
5) DECK1 EEPROM Complete
Indicates that writing of the "verify check"
data for the Deck1 touch detection system is
completed.
6) DECK2 EEPROM Complete
Indicates that writing of the "verify check"
data for the Deck2 touch detection system is
completed.
When the process has completed abnormally,
"NG" [No Good] and "Fail (Check Touch
Device)" are displayed.
The touch device of the deck concerned, the
chip parts around the touch device and the
touch sensor unit of the side concerned must be
checked.
10
DN-HD2500
No Mode Operation and Function Display
Turn the Deck1 or Deck2 PARAMETERS knob
to select "Heat_Run" from the FUNCTION
check mode's top menu, then press the
PARAMETERS knob to set "Heat_Run" mode.
Verification of the heat run database is per-
formed.
2.8 Heat_Run mode
"Verifying DataBase" is displayed during verifi-
cation.
Once verification is completed, "Ready" is dis-
played, then "Select Param." appears.
Be careful not to operate the panel until
"Select Param." is displayed.
--Deck1 operation--
Once "Select Param." is displayed for Deck1
and Deck2, turn the Deck1 PARAMETERS
knob and select "File Name". Next, press the
PARAMETERS knob to set "File Name".
11
DN-HD2500
No Mode Operation and Function Display
The names of the files that can be played are
displayed on the Deck1 screen.
Turn the Deck1 PARAMETERS knob to select
the file, then press the PARAMETERS knob to
set the file.
The CUE ( ) button flashes red while ( )
preparations for playing the selected file are
being made.
"Heat_Run_Execute!" is displayed.
Once preparations for file playback on Deck1
are completed, the CUE ( ) button stops ( )
flashing red, remaining lit.
Press the Deck1 PLAY/PAUSE ( ) button
2.8 Heat_Run mode to start heat run continuous playback.
--Deck1 operation--
Using the same procedure as with Deck1,
select and set the name of the file to be played
using the Deck2 PARAMETERS knob.
Once the file name is set, "Power Off/On Only"
is displayed.
Press the Deck2 PLAY/PAUSE ( ) button
to start heat run continuous playback.
If an error occurs when in the heat run mode,
the playback stop mode is set.
To end the heat run mode, press the CUE
( ) buttons on Decks 1 and 2 to stop
playback, then turn the power off. ( )
12
DN-HD2500
No Mode Operation and Function Display
Turn the Deck1 or Deck2 PARAMETERS knob
to select "DECK1 SW CHK" from the service
mode's top menu, then press the PARAME-
TERS knob to set "DECK1 SW CHK" mode.
"DECK1 SW CHK" mode screen appears.
When the PARAMETERS knob is pressed
while the "DECK1 SW CHK" mode is being
executed, the service mode's top menu reap-
pears.
When buttons on Deck1 are pressed, the
checkbox of the corresponding button is high-
lighted.
DECK1 SW CHK If the checkbox is not highlighted, there is a
3
mode problem with that button.
Once all the buttons on Deck1 have been
checked, the results of checking are displayed.
Press any Deck1's button other than the
PARAMETERS knob, and then "DECK2 SW
CHK" mode screen appears.
13
DN-HD2500
No Mode Operation and Function Display
After "DECK1 SW CHK" mode completed,
press any Deck1's button other than the
PARAMETERS knob, and then "DECK2 SW
CHK" mode screen appears.
To check only Deck2, turn the PARAMETERS
knob on either Deck1 or Deck2, select "DECK2
SW CHK" from the service mode's top menu,
then press the PARAMETERS knob to set.
"DECK2 SW CHK" mode screen appears. In
this case, checking of the Deck1 switches is
not performed after checking of the Deck2
switches is completed.
When the PARAMETERS knob is pressed
while the "DECK2 SW CHK" mode is being
executed, the service mode's top menu reap-
pears.
When buttons on Deck2 are pressed, the
checkbox of the corresponding button is high-
lighted.
DECK2 SW CHK
4 If the checkbox is not highlighted, there is a
mode
problem with that button.
Once all the buttons on Deck2 have been
checked, the results of checking are displayed.
Press the PARAMETERS knob, and then the
service mode's top menu appears.
14
DN-HD2500
No Mode Operation and Function Display
Turn the Deck1 or Deck2 PARAMETERS knob
to select "PANEL CHK" from the service
mode's top menu, then press the PARAME-
TERS knob to set "PANEL CHK" mode, and
then the "PANEL CHK" mode screen appears.
Checks (1) to (6) are performed.
1) FADERIN signal
When the cue or play signal is received on
the FADER1 and FADER2 terminal, the
"FADERIN CUE" or "FADERIN PLAY" check-
box on the screen is highlighted for 0.5 sec-
onds.
2) PARAMETERS knob
The checkbox display toggles between black
and white each time the PARAMETERS
knob is pressed.
When the PARAMETERS knob is turned, ->
(clockwise) or <- (counterclockwise) is dis-
played.
3) JOG disc
When the unit detects that the JOG disc has
been touched, the checkbox is highlighted
and the position of detection ("Right",
"Down", "Left" or "Up") is displayed in the [ ]
section.
When the JOG disc is turned, -> (clockwise)
or <- (counterclockwise) is displayed.
The counter value of the turning pulse num-
ber of the JOG disc is indicated on the
"COUNT" section within the range of 0 to
65535, counting up when turned clockwise,
PANEL CHK down when turned counterclockwise.
5 The count value for back spin checking is
mode
indicated on the "COUNT" section. "0" is
displayed if you touch the JOG disc, "move" Display when not in the touch count operation mode
if you turn it, and the number of rotations if ("PANEL CHK" mode initial screen)
you stop it. If values of three rotations and
greater are displayed, things are normal.
The counter value of the turning pulse width
of the JOG disc is indicated on the
"WIDTH" section within the range of 0 to
65535, decreasing when turned quickly,
increasing when turned slowly.
When the pulse width is set, the pulse width
setting flag checkbox ("WD") is highlighted.
The counter value of the turning pulse
width of the JOG disc and pulse width set-
ting flag are for design examination. For
this reason, do not use them as judging
criteria for the jog dial; handle them as ref-
erence data.
4) PITCH slider
The pitch slider's position reading value is
displayed on the "PITCH" section, the center
tap's position reading value at the "CENTER"
section, both within a range of 0 to 1022.
2 Fader value :
MAX 1018 or more 2
Click point Center Tap value 25
MIN 6 or less
2 Center Tap value
MAX 435 589
2
15
DN-HD2500
No Mode Operation and Function Display
5) TOUCH sensor
When the Deck1 or Deck2 SOURCE
( ) button is pressed, the touch count
operation mode is set and the touch detec-
tion count value is displayed.
When " " is displayed on the touch detec-
tion count section, this indicates that the set
is switching to the touch count operation
mode.
When switching to the touch count opera-
tion mode or after the mode is entered, the
"PANEL CHK" mode initial screen (---)
reappears if the Deck1 or Deck2 SOURCE
( ) button is pressed.
Touch count operation when the JOG disc
is not being touched:
It is normal if the displayed touch count
value is between 70 and 300, and if the dif-
ference between the latest count value dis-
played and the previous count value is less
than 50.
The difference between the
The touch count value
PANEL CHK latest count value and the
5 previous count value
mode
Touch judgment operetion:
The judgment result is indicated "OK" or
"NG" [No Good]. If the difference between
the count value when touching and when
not touching is 50 or greater, things are nor-
mal and "OK" is displayed. If the difference
is less than 50, things are not normal and
"NG" [No Good] is displayed.
6) LED, LCD The difference between the
The LED and LCD lighting status switches as count value when touching
follows each time the TAP ( ) button is The judgment and when not touching
pressed: result The count value
when touching
(a) (b) (c) (a)
(a) All LED turn on and all dots of LCD dis-
played
(b) LED lit dimly (A1, A2, NEXT FILE and
PLAYLIST only), all dots of LCD turn off
(c) All LED turn off and screen displayed in
the "PANEL CHK" mode
When the PLAY LIST ( ) button is
pressed, the service mode's top menu reap-
pears.
16
DN-HD2500
VERSION UPGRADE PROCEDURE OF FIRMWARE
Use the procedure described below to update the firmware to a newer version.
No Mode Operation and Function Display
Store the file (file name : HD2500.BIN) for
updating the firmware in the root directory of
the built-in hard disk drive or USB device.
If the file for updating the firmware is stored on
a USB device, connect the USB device to the
USB A terminal.
Pressing the Deck1's SOURCE ( ) but-
ton and Deck2's BACK ( ) button simul-
taneously, turn on the power. The screen for
updating the firmware appears.
Specify the device containing the file for
updating the firmware.
If the file is on the built-in hard disk drive,
press the Deck1 CUE ( ) button.
If the file is on a USB device, press the Deck2
CUE ( ) button.
Specify the starting of updating the firmware.
If the file is on the built-in hard disk drive,
press the Deck1 PLAY/PAUSE ( ) but-
ton.
If the file is on a USB device, press the Deck2
PLAY/PAUSE ( ) button.
To cancel, turn the power off.
Be careful that the power does not get
turned off while the firmware is being
updated.
17
DN-HD2500
No Mode Operation and Function Display
Once firmware updating is completed, turn off
the power.
This is displayed if there is no file for updating
the firmware on the specified device or if the
file for updating the firmware is abnormal.
1 Version up mode
This is displayed if updating of the firmware
has failed.
18
DN-HD2500
BLOCK DIAGRAM
AC IN
Power
Power
Main +3.3V RST GND0
Main +1.2V IC
+5V X'tal +1.2V +5V CY081 CW081
CS1/ IRQ3/ DMA1 12MHz +1.2V
+5V
DND REMOTE 8PMINI
8pinPH
8pinPH
DC-DC TRANS AC SW
DIN
+3.3V
CPU +3.3V
DFG CX141 +5V
SH7206 Reg
FLAG Power SW
M29W800DB
14pin R5S72060200FPV AC-DC
16MBx16bit
1MB Flash
LM3525*
SDRAM
USB I/F
Philips 8V
ISP1761BE USB
CONT Reg
A
(DAC OUT) USB
x2 B
67.7376MHz
8V
16.9344MHz
DFG 5V Reg
Data 32bit Data 16bit Data 32bit W**
ADD 2-15 ADD 1-20 ADD 1-17
A+5V 8V AFG
32/16bit/66MHz Audio
Audio LPF& RCA OUTA L
DAC Audio
ADD1-23 BUS, R/W, Enable
PCM LPF& RCA OUTA R
1781
X(tal +5V
Data 32bit 16.9344MHz D.Audio
SPDIF RCA
ADD 1-13 Data 16bit Drive OUTA
CX121(0.5mm)
+3.3V 1761 RST +3.3V CX181 CY181 Audio Audio
12pin FFC
LPF&
+1.2V +1.2V DAC RCA OUTB L
QVGA
710RST PCM Audio
Mono LCD LPF&
UHPI/ADSP CNT Audio DSP 1781 RCA OUTB R
IRQ1 TMS320DA710GDH 16.9344MHZ
18pinFFC
18pinFFC
CX142 D.Audio
SPDIF RCA
14pin Drive OUTB
FPGA 16bit Data BUS
EP2C5 CX143 MINI
CS7/PINT2 14pin FADER A IN
DIN
MINI FADER B IN
IDERST DIN
16MBx16bit 4pinPH
FADER IN A/B SDRAM FG1 CW041 FG2
x2
CX201 CY201 CY041
FG15 FG16
20pFFC
20pFFC
Slot2
Slot2 4pinPH
20pFFC
20pFFC
+5V
CX202 CY202
CX232
23pinFFC 23pinFFC 50pinCN FG18
FG3 CX231 FG4 FG17 CX501
50pinCN