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
●
本機の仕様は性能改良のため、予告なく変更すること
があります。
●
補修用性能部品の保有期間は、製造打切後 8 年です。
●
修理の際は、必ず取扱説明書を参照の上、作業を行っ
てください。
●
本文中に使用しているイラストは、説明の都合上現物
と多少異なる場合があります。
TOKYO, JAPAN
X0355 V.02 DE/CDM 0709
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.
DN-HC4500
CAUTION
Please heed the points listed below during servicing and inspection.
◎ Heed the cautions!
Spots requiring particular attention when servicing, such as
the cabinet, parts, chassis, etc., have cautions indicated on
labels or seals. Be sure to heed these cautions and the cautions indicated in the handling instructions.
◎ Caution concerning electric shock!
(1) An AC voltage is impressed on this set, so touching inter-
nal metal parts when the set is energized could cause
electric shock. Take care to avoid electric shock, by for example using an isolating transformer and gloves when
servicing while the set is energized, unplugging the power
cord when replacing parts, etc.
(2)There are high voltage parts inside. Handle with extra care
when the set is energized.
◎
Caution concerning disassembly and assembly!
Though great care is taken when manufacturing parts from
sheet metal, there may in some rare cases be burrs on the
edges of parts which could cause injury if fingers are moved
across them. Use gloves to protect your hands.
◎ Only use designated parts!
The set's parts have specific safety properties (fire resistance, voltage resistance, etc.). For replacement parts, be
sure to use parts which have the same properties. In particular, for the important safety parts that are marked ! on wiring
diagrams and parts lists, be sure to use the designated parts.
◎ Be sure to mount parts and arrange the
wires as they were originally!
For safety reasons, some parts use tape, tubes or other 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 inside and clamps are used to keep
wires away from heating and high voltage parts, so be sure to
set everything back as it was originally.
◎ Inspect for safety after servicing!
Check that all screws, parts and wires removed or disconnected for servicing have been put back in their original positions, inspect that no parts around the area that has been
serviced have been negatively affected, conduct an insulation
check on the external metal connectors and between the
blades of the power plug, and otherwise check that safety is
ensured.
(Insulation check procedure)
Unplug the power cord from the power outlet, disconnect the
antenna, plugs, etc., and turn the power switch on. Using a
500V insulation resistance tester, check that the insulation resistance between the terminals of the power plug and the externally exposed metal parts (antenna terminal, headphones
terminal, microphone terminal, input terminal, etc.) is 1MΩ or
greater. If it is less, the set must be inspected and repaired.
CAUTION
Many of the electric and structural parts used in the set have
special safety properties. In most cases these properties are
difficult to distinguish by sight, and using replacement parts
with higher ratings (rated power and withstand voltage) does
not necessarily guarantee that safety performance will be preserved. Parts with safety properties are indicated as shown
below on the wiring diagrams and parts lists is this service
manual. Be sure to replace them with parts with the designated part number.
(1) Schematic diagrams ... Indicated by the ! mark.
(2) Parts lists ... Indicated by the ! mark.
Concerning important safety parts
Using parts other than the designated parts
could result in electric shock, fires or other
dangerous situations.
If wire bundles are untied or moved to perform adjustment or
parts replacement 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.
② Fasten the FFC to externals of figure with a cord holder.
② FFC をコードホルダーで図の様に固定する。
②
4
DN-HC4500
③ Fasten the 6P connector with a cord holder.
③
④ Fasten the two4P connectors with a cord holder.
•Fasten the cord not to touch the trans.
•Fold and fasten the cord on the CX042 side..
③ 6P コードをコードホルダーで固定する。
CX061
CX111
④ 4P コード2本をコードホルダーで固定する。
・トランスにコードが接触しない様にする。
・ CX042 側のコードを折り返して固定する。
④
⑤ It coverd with TOP PANEL SUB ASSY.
NOTE:The wire gets caught in TOP PANEL SUB ASSY.
CX271
CX041
CX272
CX042
⑤ TOPPANELSUBASSY をかぶせる。
注意:WIRE を挟み込まない事
⑤
5
DN-HC4500
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.
各部のはずしかた
(組み立てるときは、逆の順序でおこなってください。)
1. TopPanelUnit
(1) 側面からねじ 10 本とワッシャーをはずし、Top Panel
Unit を引き出します。
Top Panel Unit
(2) After pull up the Top Panel Unit, turn the back forward
and then pull out the two FFC cable and two wire showed
in the below drawing.
Two wire
(2) 引き出した TopPanelUnit の背面を手前に向け、下図に
示したFFC ケーブル2 本とワイヤー2本を引き抜きます。
Two FFC cable
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 and wire.
If AC cord is remained plugged into wall outlet, power is
kept supplied in the unit, which may cause damage.
注意: FFC ケーブルを破損させないために斜めにぬかないで
ください。
FFC ケーブルとワイヤーを抜く前に AC コードをコン
セントから抜いてください。AC コードがコンセント
に接続されていると、Unit に電源が供給され危険で
す。
6
DN-HC4500
SERVICE MODE
1. Turning on the power in the service mode
(1) Turn on the power while pressing the PARAMETERS knob and the B button on either Deck 1 or Deck 2 simultaneously.
The following appears on the VFD segment display section:
Ser v i ceMode
Func t i on CHK
(2) When the PARAMETERS knob is turned clockwise, the display on the lower tier of the VFD segment display section switches
in the following order: "Function CHK" → "SW Check" → "Panel CHK" → "Touch MEAS".
The display switches in the opposite order when the PARAMETERS knob is turned counterclockwise.
(3) The displayed mode can be selected by pressing the PARAMETERS knob.
※ The service mode switches simultaneously for Deck 1 and Deck 2. When the operations for selecting and executing the dif-
ferent check modes are performed for one deck, they are automatically performed for the other deck as well.
For some items, however, the selection and execution operation must be performed individually for Deck 1 and Deck 2.
(“Audio OUT”, “SW CHECK”, “Panel CHK”, “Touch MEAS”)
2. Function summary
※ Refer to [3. Service mode function table] for details.
(1) Checking the operation of the function (Function CHK)
When the item to be checked is selected from the TOP menu, the device performs the check and settings and the results are
displayed on the VFD segment display section.
• Equipped function
① Setting initialization
② Drive Terminal check
③ Audio signal output
④ Audio Mite check
⑤ Touch initialization
⑥ USB-MIDI command transmission
サービスモードについて
1. サービスモードの立ち上げかた
(1) Deck1 または Deck2 の PARAMETERSノブと B ボタンを同時に押しながら電源を投入する。
TOP メニューから確認したい項目を選択すると、機器がチェックと設定を実行して、結果を VFD のセグメント表示部に表
示する。
・搭載機能
① 設定初期化
② DRIVE 端子確認
③ Audio 信号出力
④ AudioMite 確認
⑤ TOUCH イニシャライズ
⑥ USB-MIDI コマンド送信
(2) Checking the operation of the switches(SW Check)
Once all the switches on the panel surface have been pressed, the switch check mode ends automatically.
(3) Checking the operation of the panel(Panel CHK)
• Checking the operation of the various control elements on the panel surface
① PARAMETERS knob
② JOG disc
③ FADERIN
④ X-Control level
⑤ FADER level
• The functions shown below are always available while in the panel check mode.
⑥ All LEDs lit /LED DIM lit/All LEDs off
(4) Touch measurement(Touch MEAS)
Measurement of the count value when the touch sensor section is not being touched, and measurement and judgment of the
amount of change of the count value when the touch sensor section is being touched.
(2) スイッチ動作確認 (SWCheck)
パネル面の全てのスイッチが押されたら、スイッチチェックモードは自動的に終了する。
(3) パネル動作確認 (PanelCHK)
・パネル面に配置された各種操作子の動作確認
① PARAMETERSノブ
② JOG ディスク
③ フェーダイン
④ X-Control レベル
⑤ フェーダレベル
・以下の機能は、パネルチェックモードにしている間は常に有効である。
⑥ LED 全点灯 /LEDDIM 点灯 /LED 全消灯
(4) タッチ測定 (TouchMEAS)
タッチ検出部の非タッチ時のカウント値の測定と、タッチ時のカウント値の変化量の測定および判定
7
DN-HC4500
3. Service mode function table
ModeSummaryRemark
Service Mode TOP
(Service Mode)
Function
check mode
(Function CHK)
Switch check mode
(SW Check)
HC4500 Int, The various parameters are set to the factory defaults.
Drive Check
Audio OUT
Mute Check Switches the hardware's muting circuit on and off.
Touch Init.
USB-MIDI
Turn on the power while pressing the PARAMETERS knob and the B
button on either Deck 1 or Deck 2 simultaneously.
→ Service mode starts
When executed with the drive terminal's Tx and Rx pins connected
externally, the loop-back test is performed.
The device checks whether the transferred and received contents are
the same and the results are displayed.
The device's built-in 24 bit/44.1 kHz sampling frequency 1 kHz/0dB
audio signal is played.
Turn the PARAMETERS knob to select whether the output is on or off,
then press the PARAMETERS knob to execute.
During playback, the letters "OUT" on the VFD segment display section
flash.
Sets the contents of the EPROM built into the touch sensor IC to the
factory defaults.
Sends the MIDI command corresponding to the function selected on
the VFD segment display section.
Turn the PARAMETERS knob clockwise to select the function in the
order shown below.
"CUE" → "PLAY" → "A1" → "A2" → "HOT1"
※ Refer to [3.3. MIDI Ccommands table] for details.
Initially, the VFD is all off, and when a switch is pressed, the corresponding VFD characters lit. → Once all the switches are pressed,
"Complete" is displayed on the VFD segment display section.
※ Refer to [3.1. Switch check mode] for details.
To cancel the service
mode, turn the power
off.
Press the BACK button to return to the top
level of the Function
check mode.
Press the PARAMETERS knob to return to
the top level of the
Switch check mode.
3. サービスモード機能表
モード概要備考
サービスモード TOP
(ServiceMode)
HC4500Int,各種パラメータを工場出荷状態に設定
DriveCheck
AudioOUT
Function
チェックモード
(FunctionCHK)
スイッチチェックモード
(SWCheck)
MuteCheck ハードウェアのミュート回路の ON/OFF を切り替える。
TouchInit.
USB-MIDI
Deck1 または Deck2 の PARAMETERSノブと B ボタンを同時に押
しながら電源を投入する。
→サービスモードが起動
※ Display of the status and results of the various control elements on
the panel surface and external input from the side panel
• PARAMETERS knob
The segment on the right side of the "P" column at the upper left of
the VFD segment display section toggles between white and black
each time the PARAMETERS knob is pressed.
When the PARAMETERS knob is turned, -> (clockwise) or <- (counterclockwise) is displayed.
•JOG disc
When a touch is detected: The center of the scratch marker at the
bottom right of the VFD display section lights.
The left and right display sections of the scratch marker light according to the direction of rotation.
The jog rev count detection result is displayed on the frame count display section.
• PITCH slider
The pitch signal's AD conversion value is displayed on the pitch display section.
The center tap value is displayed in three digits on the track number
display section.
<Spec>
Central tap display value : CENTER = 512 ± 77
Pitch signal display value
• MAX value: 1018 or more
• Central click position: PITCH = CENTER ± 25
• MIN value: 6 or less
• FADERIN
The segment display sections at the sides of FC and FP on the VFD
segment display section are displayed as ■ while the CUE and
PLAY fade-in signals are being detected, respectively.
• X-Control
The AD conversion values of the X-Fade and CH signals are displayed at the sides of XF and XC on the VFD segment display section.
• XF display value
• MAX value: 1010 or more
• MIN value: 10 or less
• XC display value: 0 fixation → Future
• LED/VFD light/off
When the TAP button is pressed, the display toggles in the following
order: All LEDs lit + VFD all lit → LED DIM lit + VFD off → LED off +
normal VFD display
※This function is always available while in the "Panel CHK" mode.
The count value detected by the touch sensor IC is displayed on the
VFD.
OK if the difference between the count value when not being touched
and the count value when touched is 50 or greater.
OK if the count value when not being touched is between the range of
100 and 300.
※ Refer to [3.2. Touch measurement mode] for details.
Press the BACK and
PLAYLIST buttons to
return to the top level
of the panel check
mode.
Press the BACK and
PLAYLIST buttons to
return to the top level
of the Touch measurement mode.
X-Fade、CH の各信号の AD 変換値を VFD のセグメント表示部の
XF、XC の隣に表示する。
・ XF 表示値
最大値:1010 以上
最小値:10 以下
XC 表示値:0 固定→ Future
・ LED/VFD 点灯 / 消灯
TAP ボタンを押すと、LED 全点灯 +VFD 全点灯→ LEDDIM 点灯
+VFD 消灯→ LED 消灯 +VFD 通常表示の順番でトグル動作する。
※ PanelCHK モード中は、本機能が常に有効。
タッチセンサ IC が検出したカウント値を VFD に表示する。
非タッチ時のカウント値とタッチ時のカウント値の差分が50以上で
あれば OK
非タッチ時のカウント値が 100 以上、300 以下の範囲内であれば
OK
※ 詳細は、『3.2.タッチ測定モード (TouchMEAS)』を参照
BACK または PLAYLIST ボタ
ンを押すとパネルチェック
モードの TOP 階層に戻る。
BACKボタンまたはPLAYLIST
ボタンを押すと
モード
の TOP 階層に戻る。
タッチ計測
9
DN-HC4500
3.1. Switch check mode (SW Check)
(1) All the VFD characters are turned off.
The following characters are assigned to the 12 places of the VFD segment display section:
UpperPRFB
LowerTCP
(2) When each switch is pushed
HOT1~HOT5→ The numbers of the various buttons light on the track number display section and in the five places
of the minutes counter display section.
EFX1~3→ EFX1-2: The numbers of the various buttons light on the seconds counter display section; EFX3:
The numbers of the buttons light on the frame counter display section.
PLAYLIST→ "P" is displayed in the fifth place of the
Fast Search→ "R" is displayed in the third place of the upper tier for the reverse mode, "F" is displayed in the fourth
place of the upper tier for the forward mode.
BACK→ "B" is displayed in the six place of the upper tier.
PITCH BEND→ " + " is displayed in the eighth place of the upper tier, " − " is displayed in the fifth place of the
tier.
TIME→ "REMAIN" indicator is light.
MEMO→ "MEMO" indicator is light.
TITLE→ "T" is displayed in the first place of the
CONT→ "CONT" indicator is light.
SOURCE→ "CD" indicator is light.
FLIP→ The "(" for A1 and A2 on the left side of the VFD display section light simultaneously.
A1, A2→ The ”A1” or “A2” on the left side of the VFD display section light respectively.
B→ The "B" for A1 and A2 on the left side of the VFD display section light simultaneously.
EXIT→ The ")" for A1 and A2 on the left side of the VFD display section light simultaneously.
CUE, PLAY→ "C" is displayed in the third place of the lower tier for the CUE mode, “P” is displayed in the ninth
place of the upper tier for the PLAY mode.
JOG MODE→ The center of the scratch mark is light.
PITCH → "KEY ADJ." indicator is light.
TAP→ "BPM" indicator is light.
両 Deck 共に、"Complete" が表示された状態で、任意のスイッチを押すと、スイッチチェックモードの TOP 階層に戻る。
PRFB
TCP
ボタンの数字を表示する。
−+
(3) Once all the switches have been pressed, "Complete" is displayed on the lower tier of the VFD segment display sec-
tion.(both decks)
For both decks, press any switch while "Complete" is displayed to return to the top level of the switch check mode.
3.2. Touch measurement mode(Touch MEAS)
(1) All the VFD characters are turned off.
The following appears on the VFD segment display section:(Count value display mode)
TP_***RT_***
BM_***LT_***
*** : Current touch count value is displayed.
(TP : TOP, BM : BOTTOM, RT : RIGHT, LT : LEFT)
The average of the count values acquired for the first four times measurements are made after this mode is set is calculated
and used as the reference value.
(2) Turn the PARAMETERS knob one click to switch the display on the VFD segment display section as shown below. (Differ-
ence display mode)
TP
BM
*** : (Standard value) - (Current touch count value) is displayed.
Now, turn the PARAMETERS knob one click to switch to the count display mode in (1).
(3) The center of the scratch mark lights if the difference of the count value calculated with any one of the four sensors above,
below and to the sides of the disc during the touch measurement mode is 50 or greater.
(4) When the PARAMETERS knob is pressed, the average of the count value acquired for the first four times measurements
are made after the PARAMETERS knob is pressed is held on the display.
(5) Press the PARAMETERS knob again to return to the count display mode in (1).
(6) Press the BACK and PLAYLIST buttons to return to the top level of the Touch measurement mode.
(5) Press the Load button to transfer the update file.
(5) Load ボタンを押してアップデートファイルを転送する。
(6) The following appears on the VFD segment display section:
During file transfer:on Deck1
Updat eMode
Load i ng
Once file transfer is finished;
Updat eMode
**** >> ****
(Left side: Old version, Right side: New version)
Once file transfer is finished, press the OK button. The Execute button is now enabled (can be pressed).