Denon DHT-390XP Service Manual

SERVICE MANUAL

MODEL JP E3 E2 EK K2A E1C E1K EUT

Ver. 3

Please refer to the MODIFICATION NOTICE.

DHT-390XP

5.1CH HOME THEATER SYSTEM (DHT-390XP) consists of AV SURROUND RECEIVER (AVR-390) and SPEAKER SYSTEM (SYS-390HT)

MODEL JP E3 E2 EK K2A E1C E1K EUT

AVR-390

P P

5.1CH HOME THEATER SYSTEM

AV SURROUND RECEIVER

For purposes of improvement, specications 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.

•

D&M Holdings Inc.

S0032-0V03DM/DG1002

WARNING: Violators will be prosecuted to the maximum extent possible.

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

Heed the cautions!

◎

Spots requiring particular attention when servicing, such

as the cabinet, parts, chassis,etc., have cautions indicated

on labels. be sure to heed these causions and the cautions

indicated in the handling instructions.

Caution concerning electric shock!

◎

(1) An AC voltage is impressed on this set, so touching

internal metal parts when the set is energized could

ca use e lectric shock. Take car e to avoid elect ric

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) Tere are high voltage parts inside. Handle with extra

care when the set is energized.

Caution concerning disassembly and

◎

Please heed he points listed below during servicing and inspection.

assembly!

Through 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 ngers

are moved across them. Use gloves to protect your hands.

Only use designated parts!

◎

Th e s et's parts hav e s pec ifi c safety properties (fi re

resistance, voltage resistance, etc.). For replacement parts,

be sure to use parts which have the same poroperties. 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 seasons, 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 wores omsode amd 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!

◎

Ch eck that all scr ews , pa rts and wir es r emo ved 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 inslation 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

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.

CAUTION

Concerning important safety parts

Many of the electric and structural parts used in the set

have sp ecial safe ty properties. In most cases thes e

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 poreserved. 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 z mark.

(2) Parts lists ...... Indicated by the z mark.

Using parts other than the designated

parts could result in electric shock, res

or other dangerous situations.

DHT-390XP

AVR-390

dimension

AVR-390

DHT-390XP

AVR-390

dsW-390

270

427

395

200

530

185

150

400

φ88

DHT-390XP

sC-F390

125

130

155

320

DHT-390XP

sC-C390

155

125

130

320

155

180

130

125

sC-R390

DHT-390XP

WIRE ARRANGEMENT

If wire bundles are untied or moved to perform adjustment or parts replacement etc., be sure to rearrange them neatly asthey were originally bundled or placed afterward. Otherwise, incorrect arrangement can be a cause of noisegeneration.

Wire arrangement viewed from the top

Back Panel side

Front Panel side

DHT-390XP

AVR-390

DISASSEMBLY

• Disassemble in order of the arrow of the figure of following flow.

• In the case of the re-assembling, assemble it in order of the reverse of the following flow.

• In the case of the re-assembling, observe "attention of assembling" it.

CABINET TOP

Refer to "DISASSEMBLY 1.PANEL FRONT ASSY" Refer to "DISASSEMBLY 5.CHASSIS BACK" Refer to "DISASSEMBLY 2.HEATSINK

PANEL FRONT ASS

and "EXPLODED VIEW" and "EXPLODED VIEW" MAIN ASSY" and "EXPLODED VIEW"

PCB ASSY ST-BY PCB ASSY AMP (Ref. No. of EXPLODED VIEW : 11) (Ref. No. of EXPLODED VIEW : 20)

PCB ASSY TACT-SW (Ref. No. of EXPLODED VIEW : 12) PCB ASSY FRONT

(Ref. No. of EXPLODED VIEW : 13) Refer to "DISASSEMBLY 6.PCB ASSY DSP" Refer to "DISASSEMBLY 3.PCB ASSY HDMI" PCB ASSY H/P and "EXPLODED VIEW" and "EXPLODED VIEW"

(Ref. No. of EXPLODED VIEW : 14) PCB ASSY DSP PCB ASSY HDMI PCB ASSY ENCORDER (Ref. No. of EXPLODED VIEW : 32) (Ref. No. of EXPLODED VIEW : 33) (Ref. No. of EXPLODED VIEW : 17)

Refer to "DISASSEMBLY 7.PCB ASSY VIDEO" Refer to "DISASSEMBLY 4.POWER TRANS"

PCB ASSY VIDEO POWER TRANS (Ref. No. of EXPLODED VIEW : 31) (Ref. No. of EXPLODED VIEW : 28)

Refer to "DISASSEMBLY 8.PCB ASSY POWER"

PCB ASSY POWER (Ref. No. of EXPLODED VIEW : 29)

Refer to "DISASSEMBLY 9.PCB ASSY MAIN"

PCB ASSY MAIN (Ref. No. of EXPLODED VIEW : 30)

CHASSIS BAC

PCB ASSY DS

PCB ASSY VIDE

and "EXPLODED VIEW" and "EXPLODED VIEW"

PCB ASSY POWE

and "EXPLODED VIEW"

PCB ASSY MAIN

and "EXPLODED VIEW"

HEATSINK MAIN ASS

PCB ASSY HDMI

POWER TRANS

The viewpoint of each photograph (photography direction)

[ Top view ]

Picture D

Picture E

Picture F

Picture B

( Bottom view )

Picture A

Picture C

Picture G

DHT-390XP

AVR-390

1. PANEL FRONT ASSY

Proceeding : CABINET TOP → PANEL FRONT ASSY

(1) Disconnect the connector wires and FFC Cable.

Cord holder : Loose

CP701

Top view

Picture D

(2) Remove the screws.

FFC Cable

Cord holder : Loose

CP701

CP104

cut

Bottom view

DHT-390XP

AVR-390

Picture C

Picture D

Please refer to "EXPLODED VIEW" for the disassembly method of each P.W.B included in PANEL FRONT ASSY.

2. HEATSINK MAIN ASSY

Proceeding : CABINET TOP → HEATSINK MAIN ASSY

(1) Disconnect the connector wires and FFC Cable.

Cord holder : Loose

Top view

FFC Cable

CP110 CP 111

CP701

CP107

DHT-390XP

AVR-390

(2) Remove the screws.

Bottom view

Picture C

Cord holder : Loose

Picture D

Please refer to "EXPLODED VIEW" for the disassembly method of each P.W.B included in HEATSINK MAIN ASSY.

DHT-390XP

AVR-390

3. PCB ASSY HDMI

Proceeding : CABINET TOP → PCB ASSY HDMI

(1) Disconnect the connector wire and remove the screws.

Picture F

CP01

4. POWER TRANS

Proceeding : CABINET TOP → POWER TRANS

(1) Disconnect the connector wires.

CP701

Top view

CORD HOLDER : Loose

cut

CP102

CP101

DHT-390XP

CP305

AVR-390

5. CHASSIS BACK

Proceeding : CABINET TOP → CHASSIS BACK

(1) Remove the screws.

Picture A

6. PCB ASSY DSP

Proceeding : CABINET TOP → CHASSIS BACK → PCB ASSY DSP

(1) Disconnect the Board to board.

DSP Board

Top view

Board to board

7. PCB ASSY VIDEO

Proceeding : CABINET TOP → CHASSIS BACK → PCB ASSY VIDEO

(1) Disconnect the Board to board.

VIDEO Board

Top view

DHT-390XP

Board to board

AVR-390

8. PCB ASSY POWER

Proceeding : CABINET TOP → CHASSIS BACK → PCB ASSY POWER

(1) Disconnect the connector wires and remove the screws.

Top view

CP103

POWER Board

9. PCB ASSY MAIN

Proceeding : CABINET TOP → CHASSIS BACK → PCB ASSY MAIN

Please refer to "EXPLODED VIEW" for the disassembly method of PCB ASSY MAIN.

DHT-390XP

AVR-390

CAUTION IN SERVICING

1. Initializing

Initialization should be performed when the µcom, peripheral parts of µcom, MAIN P.W.B. unit and Mecha are replaced.

1. Plug the power cord into a power outlet.

2. "ON/STANDBY LED" is red lighting.

3. Press the “ON/STANDBY” button while pressing the “MEMORY/ENTER” button.

4. "CLEAR" is displayed on the FL tube.

＊ The microprocessor will be initialized.

Note:・If step 4 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.

ON/STANDBY STATUS MEMORY/ENTER SETUP

2. Version display

1. Plug the power cord into a power outlet.

2. "ON/STANDBY LED" is red lighting.

3. Press the “ON/STANDBY” button while pressing the “SETUP” button.

4. The version of Main μcom is displayed on FL tube. Version of Main μcom : “M:XXXX-X”

5. Press the "STATUS" or “SETUP” button, version of DSP is displayed on the FL tube. Version of DSP : “DSP:XXXX”

6. Press the "STATUS" or “SETUP” button, the FL tube lights all.

The display switches each time the "STATUS" or “SETUP” button is pressed.

Version of Main μcom Version of DSP FL tube lights all

DHT-390XP

AVR-390

ADJUSTMENT

VR213FR

VR213SL

VR213FL

VR213C

VR213SR

S Lch

F Lch

TP201FL

TP201SL

TP201FR

TP201C TP201SR

C ch

F Rch

S Rch

DC Voltmeter

MAIN UNIT

AMP. UNIT

Audio Section

Idling Current

Required measurement equipment: DC Voltmeter

1. Preparation

(1)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).

(2) Presetting

• POWER(Powersourceswitch) OFF

• SPEAKER (Speaker terminal) No load

 (Donotconnectspeaker,dummyresistor,etc.)

2. Adjustment

(1)RemovetopcoverandsetVR213FL,FR,C,SL,SR,onMainAmp.Unitatfullycounterclockwise(c)position. (2)ConnectDCVoltmetertotestpoints(FRONT-Lch:TP201FL,FRONT-Rch:TP201FR,CENTERch:TP201C,

SURROUND-Lch:TP201SL,SURROUND-Rch:TP201SR). (3)ConnectpowercordtoACLine,andturnpowerswitch"ON". (4)Presetting.

MASTERVOLUME :"---"counterclockwise(cmin.)

SPEAKER (Speaker terminal) : No load

 (Donotconnectspeaker,dummyresistor,etc.)

FUNCTION :EXTIN

(5) Within 2 minutes after the power on, turn VR101 clockwise (x)toadjusttheTESTPOINTvoltageto

1.5mV±0.5mVDC.

(6) After 10 minutes from the preset above, turn VR101 to set the voltage to

2.0mV±0.5mVDC.

(7)AdjusttheVariableResistorsofotherchannelsinthesameway.

DHT-390XP

AVR-390

TROUBLE SHOOTING

1. POWER

1.1. Power not turn on

Power not turn on

Is the ON/STANDBY indica-

tor on the front panel flashing

red?

Is the fuse blown?

YES

Does the power turn on when the POWER switch is turned off then back on?

YES YES YES

Check the primary circuitry parts including the POWER switch (for poor contacts, etc.), and replace any defective parts.

Are there any incomplete connections in the connec-

YES

tors connecting between the various circuit boards?

Connect the connectors properly.

Refer to Fuse is blown

Is a DC 3.3V voltage being supplied from the POWER

B’d (CP103 pins 3) to the microprocessor?

Check the microprocessor periphery circuitry and replace any defective parts.

Is there a short circuit

between the speaker terminals and the ground?

YES NO

Check for damage in the power amplifier circuitry parts and replace any defective parts.

Is a DC 3.3V voltage output when the cord supplying the

power from the SUPPLY B’d to the microprocessor (CP103) is unplugged?

Check the circuitry and parts from CP103 on the SUPPLY B’d to the microprocessor for damage and short-circuits, and replace any defective parts.

Correct the short circuit

YES

between the speaker and the ground.

Check the parts from IC300

to the primary circuitry and replace any defective parts.

1.2. Fuse is blown

Check for leaks or short circuits in the primary side parts, and replace any defective parts.

Fuse is blown

Check for short circuits in the rectifier diodes and circuitry of the secondary side rectifying circuits, and replace any defective parts.

After repairing, also replace the fuse.

DHT-390XP

Check for short circuits in the power stabilizer unit's regulator output terminal and the ground, and replace any defective parts.

AVR-390

2. Analog video

2.1. AVR-390

MONITOR OUT (CVBS/S) Output NG

Input

CVBS

Input

※ When checking operation, select

DVD for the function.

Input

CVBS/S

Check 12V, 9V. 12V : CN201-4pin 9V : CN201-6pin

To troubleshooting 1.1 Power not turn

on.

Check output Output V : C258 +side Output Y : C259 +side Output C : C262 +side

Check cable between main unit

and monitor or Check monitor.

※ Unless specified, VIDEO UNIT part.

Check input of input selector and

surrounding circuitry soldering.

Input : IC202,IC203,IC204

DHT-390XP

AVR-390

3. HDMI/DVI

3.1. No picture or sound is output

No picture or sound is output

YES

Check the HDMI/DVI cable connection

YES

Is the HDMI/DVI cable properly connected?

YES

Are you using an HDMI/DVI selector, repeater or a device for improving picture quality?

Are you using a certified HDMI cable (one with the HDMI stamp)?

YES

Are you using an HDMI/DVI cable less than 5 meters in length?

YES

Are the picture and sound output when another HDMI/DVI cable is used?

Checking the DVD player

There may be a problem with the HDMI/

DVI cable. Check the connection.

Disconnect everything and connect only

YES

the HDMI/DVI cable to check.

Use a certified HDMI cable (one with the

HDMI stamp).

Replace the HDMI/DVI cable with one

that is less than 5 meters in length (2 meters recommended) to check.

YES

The HDMI/DVI cable is defective.

YES

Is the DVD player's HDMI output setting correct?

YES

Are the picture and sound TV output when the DVD player's resolution is changed?

Is the DVD player HDCP-compatible?

Are the picture and sound output when a different DVD player is used?

Check the HDMI output setting, referring

YES

to the DVD player's operating instructions.

Set the DVD player's output resolution

YES

to a resolution with which the TV is compatible.

The DVD player may not be compatible

YES

with HDCP TV. Ask the DVD player's manufacturer.

YES

The DVD player is defective.

DHT-390XP

AVR-390

Check the TV

Is the TV HDCP-compatible?

Is the TV compatible with resolutions of 1080P?

Is the TV's input set to HDMI?

YES

Use an HDCP-compatible TV. PC

TVs cannot be used.

If the TV is not compatible with resolutions of 1080P, no picture will

be output, even if the DVD player's resolution is set to 1080P.

Check the TV's input setting,

referring to the TV's operating instructions.

Are the picture and sound output when a different TV is used?

YES

Check the set (AVR-390)

Is the set's input set to HDMI?

YES YES

The set does not recognize the TV.

Is IC01 pin 76 "H" (3V-5V)? With the TV connected, check the voltage of the IC on the side on which the TV is connected.

YES

When using a DENON DVD player, is the fluorescent display tube's "HDMI" indicator lit? If using a non-DENON DVD player, proceed to "NO".

The pattern and circuit from the HDMI

connector (JACK03) to the IC (IC01) is defective.

The DVD player does not recognize the connection with the set.

Is the HDMI connector (JACK01/

JACK02) pin 19 "H" (5V)? With the DVD player connected, check the voltage of the HDMI connector for the input on the side on which the DVD player is connected.

The TV is defective.

Check the set's input setting,

referring to the set's operating instructions.

The pattern and circuit from the HDMI connector (JACK01/

JACK02) to the Main μcom is defective.

YES YES

The HDMI output circuitry is defective. (IC01 and surrounding circuitry)

DHT-390XP

AVR-390