DENON ASD-1R - CONTROL DOCK FOR IPOD – SCHEMATIC (CIRCUIT DIAGRAM)

DENON ASD-1R - CONTROL DOCK for iPod – SCHEMATIC (Circuit Diagram)

SCHEMATICS [CLICK ON THE PICTURES TO MAGNIFY]

PWB-COMPONENT SIDE

PWB-FOIL SIDE

DENON AVC-3020 – AVC-2020 – AVC2020G HOW TO CONNECT AV SURROUND AMPLIFIER

HOW TO CONNECT DENON AVC-3020 – AVC-2020 – AVC2020G AV Surround Amplifier

AUDIO

VODEO [TV]

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DENON CDR-W1500 CD RECORDER – HOW TO OPEN

DENON CDR-W1500 CD RECORDER – HOW TO OPEN

HOW TO OPEN DENON CDR-W1500 CD RECORDER

TOP COVER

Remove 4 screws (1) on both sides.

Remove 2 screws (2) on rear side.

Detach the top cover to the arrow direction.

Front panel

Turn the unit Power ON, and open both trays of the CD mechanism and CDR mechanism.

Remove the loader panels and switch off the power after closing the trays.  Disconnect the power plug.

Disconnect FFC of the display PWB from the Servo PWB, and unplug the connectors on the H/P PWB and power SW PWB.

Remove 2 screws (3) and five screws (4).

Detach the front panel to the arrow direction.  When unplugging the connectors on the Power SW PWB, hold the PWB with your hand to prevent it from bending.

Mechanism unit

Fully open the tray by turning the gear under the mechanism unit counterclockwise.

Remove 2 screws (5) through the hole of the tray.

Remove 2 screws (6) from the rear of the mechanism unit.

Detach the mechanism unit to the arrow direction.  Disassembling method of CD and CDR mechanism are similar.

To disconnect the FFC

Push the FFC to the arrow direction.

With bending the holding part of the mechanism base as shown, release the FFC to the arrow direction.

Each PWB

Power PWB

Remove 2 screws (7).

Remove 4 screws (8).

Remove 4 screws (9).

Audio PWB

Remove 8 screws (10)

Remove 2 screws (11).

Release on card spacer (12) to detach the PWB.

Servo PWB

Remove 2 screws (13).

Release 2 card spacers (14) to detach the PWB.  When plugging the 6P PH-PH connector (CX061) on the audio PWB, hold the PWB with your hand to prevent it from bending.

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DENON DVD 1750 – DVD 1558 DVD VIDEO PLAYER – SMPS SCHEMATIC

DENON DVD 1750 – DVD 1558 DVD VIDEO PLAYER – SMPS SCHEMATIC

DENON DVD 1750_DVD1558_Circuit diagram.

SMPS SCHEMATIC [Click on the schematic to magnify]

DENON DVD 5000 HOW TO REMOVE THE DISC ON THE TRAY IN TROUBLE

DENON DVD 5000 HOW TO REMOVE THE DISC ON THE TRAY IN TROUBLE

TO REMOVE THE DISC ON EMERGENCY

* Remove the Top Cover first.

* Remove the 6 screws (1) on the top, 4 screws (2) on both sides and 2 screws (3) on the rear.

* Remove the top cover while spreading it slightly and lifting it upward.

* When the disc does not eject even after pushing the OPEN/CLOSE button, remove the disc as follows:

* Perform this procedure after the top cover has already removed.

* Remove the 5 screws (4) on the top and the 4 screws (5) on the rear side.

* Remove the top plate assembly while shifting it to the arrow direction after disconnecting the wire.

* Remove the clamp support plate by removing the 4 screws (8).

* Remove the disc, taking care not to damage it.

Reverse the procedure to reassemble.

DENON S-101 _ DVD HOME THEATER SYSTEM_SYSTEM CHECK & INITIALIZATION

DENON S-101 _ DVD HOME THEATER SYSTEM_SYSTEM CHECK & INITIALIZATION

INITIALIZATION

This initializes the data for the function, volume, DVD mechanism (RL-874), etc.

• Check that the AC cord is disconnected from the power outlet. (AC OFF)
• While pressing the FUNCTION and OPEN/CLOSE buttons on the main unit, plug the AC cord into the power outlet. (AC ON)
• Check that the entire display and all the LEDs light,then release the FUNCTION and OPEN/CLOSE buttons.
• After about 3 seconds, "INITIALIZE" appears on the display.
• After initialization is complete (when "INITIALIZE" turns off), the function is set to "DVD" and the volume level is set to - ∞ ("-dB" is displayed).

SYSTEM CHECK MODE

Use this to display the version information, etc.

• In the standby mode, while pressing the STOP and A.FWD [ >> ] buttons on the main unit, press the ON/STANDBY button.
• Press the STATUS button on the remote control unit (RC-1007) to display the following information, in this order: Time (TIME) → System microprocessor version (SYS Ver) → Date of system microprocessor version updating (SYS Date) → DSP version (DSP Ver) → Date of DSP version updating (DSP Date)→ Date of drive microprocessor version updating (Dr Date) → ESS version (Ess Ver) → Date of ESS version updating (Ess Date) → Region number (Region No.)
• To cancel, unplug the AC cord. (AC OFF).
• NOTE 1: The DVD mechanism driver version and ESS version are not displayed unless the function is once set to DVD.

DENON AVR-790 _ AVR-590 _ AVR-1910 _ AVR-1620 _ AVR1610 _SPECIAL MODE SETTINGS

DENON AVR-790 _ AVR-590 _ AVR-1910 _ AVR-1620 _ AVR1610 _SPECIAL MODE SETTINGS

SPECIAL MODE SETTINGS

• Press the ON/OFF button to turn on while pressing both buttons A and B at the same time.

Mode	Button A	Button B	Contents
μcom/DSP Version display mode	STATUS	DIMMER	Serial No. and firmware versions such as Main, Sub, DSP are displayed in the FL manager. Errors are displayed when they occur.
Errors checking mode (Displaying the protection history)	STATUS	MULT EQ	Displaying the protection history
Initialization mode	SURROUND MODE (<)	SURROUND MODE (>)	Backup data initialization is carried out.
Mode for switching tuner frequency step	SOURCE	- (non)	E2 model only Select with the SOURCE [Left_Up_Right_down] button. Change tuner frequency step to AM9k/FM50kHz STEP or M:10k/FM:200kHz.
Mode for preventing remote control acceptance	CURSOR (<)	RESTORER	Operations using remote control are rejected. (Mode cancellation: Turn off power and execute the same button operations as when performing setup.)
Panel lock mode	SURROUND MODE (<)	RESTORER	Operations using main unit panel buttons or master volume are rejected.
Panel lock mode (Remove Master volume)	SURROUND MODE (>)	RESTORER	Operations using main unit panel buttons are rejected.
Cancellation of panel lock mode	MENU	RESTORER	Panel lock mode is cancelled.

DENON AVR-790 _ AVR-590 _ AVR-1910 _ AVR-1620 _ AVR1610 _ SERVICE ADJUSTMENTS

DENON AVR-790 _ AVR-590 _ AVR-1910 _ AVR-1620 _ AVR1610 _ SERVICE ADJUSTMENTS

INITIALIZING 

AV SURROUND RECEIVER initialization should be performed when the μcom, peripheral parts of μcom, and Digital P.W.B. are replaced.

1. Switch off the unit.
2. With the "SURROUND MODE 0" and "SURROUND MODE 1" buttons pressed, press the "ON/OFF" button to turn the power on.
3. Check that the entire display is flashing with an interval of about 1 second, and release your fingers from the 2 buttons and the microprocessor will be initialized.

If step 3 does not work, start over from step 1.

All user settings will be lost and this factory setting will be recovered when this initialization mode.  So make sure to m+emorize your setting for restoring after the initialization.

ERROR CHECKING MODE

Error mode (Displaying the protection history):

When started up, the error information is displayed.

Starting up:

For all models

• With the "STATUS" and "MULTEQ" buttons pressed, press the "ON/OFF" button to turn the power on. The error (protection history display) mode is set.
• Now, press the "STATUS" button to turn on the FL display

About the display on the FL display

• When the "STATUS" button is pressed after setting the error (protection history display) mode, a history like the one shown below is displayed, depending on the conditions.

Clearing the protection history

There are two ways to clear the protection history, as described below.

1. Start up the error (protection display) mode, display the error, then press and hold in the "ENTER" button for 3 seconds.
2. Initialize.  # If you want to save a backup. 

AUDIO SECTION ADJUSTMENT

• Idling Current
• Required measurement equipment: DC Voltmeter.

Avoid direct blow from an air conditioner or an electric fan, and adjust the unit at normal room temperature 15 °C ~ 30 °C (59 °F ~ 86 °F).

Presetting

POWER (Power source switch) OFF

SPEAKER (Speaker terminal) No load.  (Do not connect speaker, dummy resistor, etc.)

ADJUSTMENT

• Remove top cover and set VR1201 FL, FR, C, SL, SR, SBL, SBR on 7CH AMP UNIT at fully counterclockwise (c) position(1910/790 model).
• Remove top cover and set VR1201 FL, FR, C, SL, SR on 5CH AMP UNIT at fully counterclockwise (c) position(1610/1620/590 model).
• Connect DC Voltmeter to test points (FRONT-Lch: TP1201, FRONT-Rch: TP1205, CENTER ch: TP1203, SURROUND-Lch: TP1202, SURROUND-Rch: TP1204, SURROUND-BACK Lch: TP1207(1910/790 model), SURROUNDBACK Rch: TP1206 (1910/790 model)).
• Connect power cord to AC Line, and turn power switch "ON". 
• Presetting.
• MASTER VOLUME: "---" counterclockwise (min.)
• SPEAKER (Speaker terminal) : No load
• (Do not connect speaker, dummy resistor, etc.)
• MODE : 7CH STEREO (5CH STEREO)
• FUNCTION : CD
• Within 2 minutes after the power on, turn VR1201 clockwise (x) to adjust the TEST POINT voltage to 1.5 mV ± 0.5 mVDC.
• After 10 minutes from the preset above, turn VR1201 to set the voltage to 2.0 mV ± 0.5 mV DC.
• Adjust the Variable Resistors of other channels in the same way.

DENON AVR-790 _ AVR-590 _ AVR-1910 _ AVR-1620 _ AVR1610 _ POWER SUPPLY TROUBLESHOOTING TABLE _ NO POWER

DENON AVR-790 _ AVR-590 _ AVR-1910 _ AVR-1620 _ AVR1610 _ POWER SUPPLY TROUBLESHOOTING TABLE _ NO POWER

NO POWER ON

Is the ON/STANDBY indicator on the front panel flashing red?	No -->	Are there any incomplete connections in the connectors connecting between the various circuit boards?	No -->	Is there a short circuit between the speaker terminals and the ground?	No -->	Correct the short circuit between the speaker and the ground.
Yes		Yes		Yes
Is the fuse blown?		Connect the connectors properly		Check for damage in the power amplifier circuitry parts and replace any defective parts.
Yes	No -->	Refer to Fuse is blown
Does the power turn on when the POWER switch is turned off then back on?	No -->	Is a DC 5V voltage being supplied from the POWER B’D (CN1701 pin 4) to the microprocessor?	No -->	Is a DC 5V voltage output when the cord supplying the power from the SUPPLY B’D to the microprocessor (CP1700) is unplugged?	No -->	Check the parts from IC1703 to the primary circuitry and replace any defective parts.
Yes		Yes		Yes
Check the primary circuitry parts including the POWER switch (for poor contacts, etc.), and replace any defective parts.		Check the microprocessor periphery circuitry and replace any defective parts.		Check the circuitry and parts from CP1700 on the SUPPLY B’D to the microprocessor for damage and shortcircuits, and replace any defective parts.
FUSE BLOWN
Check for leaks or short circuits in the primary side parts, and replace any defective parts.	Check for short circuits in the rectifier diodes and circuitry of the secondary side rectifying circuits, and replace any defective parts.	Check for short circuits in the power stabilizer unit's regulator output terminal and the ground, and replace any defective parts.