Denon-DHT390XP-avr-sm维修电路原理图.pdf

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1、D&M Holdings Inc. SERVICE MANUAL e e MODELJPE3E2EKK2AE1CE1KEUT DHT-390XPPP 5.1CH HOME THEATER SYSTEM MODELJPE3E2EKK2AE1CE1KEUT AVR-390 sP AV SURROUND RECEIVER 5.1CH HOME THEATER SYSTEM (DHT-390XP) consists of AV SURROUND RECEIVER (AVR-390) and SPEAKER SYSTEM (SYS-390HT) Ver. 3 Some illustrations usi

2、ng 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, specifications and design are subject to change without notice. S0032-0V03DM/DG1002 Please refer to the MODIFIC

3、ATION NOTICE. RadioFans.CN 收音机爱 好者资料库 DHT-390XP 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 ()

4、 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 he points listed below during servicing and inspection. heed the cautions! Spots re

5、quiring 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

6、 internal 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. () Tere are high voltage parts insid

7、e. Handle with extra care when the set is energized. Caution concerning disassembly and 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 fingers are moved across them. Use gloves t

8、o protect your hands. Only use designated parts! The sets parts have specific safety properties (fire 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 z on wiring diagrams

9、 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 wi

10、th 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! Check that all screws, parts and wires removed or disconnected for servicing have been put back

11、 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) Unp

12、lug 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 1M or greater. If it i

13、s less, the set must be inspected and repaired. 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

14、 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 m

15、ark. () Parts lists .Indicated by the z mark. Using parts other than the designated parts could result in electric shock, fires or other dangerous situations. Concerning important safety parts CAUTION AVR-390 RadioFans.CN 收音机爱 好者资料库 DHT-90XP dimension AVR-390 AVR-90 DHT-90XP dsW-390 270 427 395 20 2

16、00 530 30 185 150 55 50 400 88 DHT-90XP sC-F390 125 130 155 320 DHT-90XP sC-C390 155 125 130 320 sC-R390 155 180 130 125 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

17、placed afterward. Otherwise, incorrect arrangement can be a cause of noisegeneration. Wire arrangement viewed from the top Back Panel side Front Panel side AVR-390 8 DHT-390XPAVR-390 DISASSEMBLY Disassemble in order of the arrow of the figure of following flow. In the case of the re-assembling, asse

18、mble it in order of the reverse of the following flow. In the case of the re-assembling, observe attention of assembling it. CABINET TOP PANEL FRONT ASSYCHASSIS BACKHEATSINK MAIN ASSY Refer to DISASSEMBLY 1.PANEL FRONT ASSYRefer to DISASSEMBLY 5.CHASSIS BACKRefer to DISASSEMBLY 2.HEATSINK and EXPLOD

19、ED VIEWand EXPLODED VIEWMAIN ASSY and EXPLODED VIEW PCB ASSY ST-BYPCB 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 FRONTPCB ASSY DSPPCB ASSY HDMI (Ref. No. of EXPLODED VIEW : 13)Refer to DISASSEMBLY 6.PCB ASSY D

20、SPRefer to DISASSEMBLY 3.PCB ASSY HDMI PCB ASSY H/Pand EXPLODED VIEWand EXPLODED VIEW (Ref. No. of EXPLODED VIEW : 14)PCB ASSY DSPPCB ASSY HDMI PCB ASSY ENCORDER (Ref. No. of EXPLODED VIEW : 32) (Ref. No. of EXPLODED VIEW : 33) (Ref. No. of EXPLODED VIEW : 17) PCB ASSY VIDEOPOWER TRANS Refer to DISA

21、SSEMBLY 7.PCB ASSY VIDEORefer to DISASSEMBLY 4.POWER TRANS and EXPLODED VIEWand EXPLODED VIEW PCB ASSY VIDEOPOWER TRANS (Ref. No. of EXPLODED VIEW : 31) (Ref. No. of EXPLODED VIEW : 28) PCB ASSY POWER Refer to DISASSEMBLY 8.PCB ASSY POWER and EXPLODED VIEW PCB ASSY POWER (Ref. No. of EXPLODED VIEW :

22、 29) PCB ASSY MAIN Refer to DISASSEMBLY 9.PCB ASSY MAIN and EXPLODED VIEW PCB ASSY MAIN (Ref. No. of EXPLODED VIEW : 30) Picture APicture FPicture G Picture B ( Bottom view ) Picture C The viewpoint of each photograph (photography direction) Top view Picture D Picture E 9 DHT-390XPAVR-390 1. PANEL F

23、RONT ASSY (1) Disconnect the connector wires and FFC Cable. (2) Remove the screws. Proceeding : CABINET TOP PANEL FRONT ASSY Top view FFC Cable CP701Cord holder : Loose CP701 Picture D Cord holder : Loose CP104 cut Bottom view 10 DHT-390XPAVR-390 Please refer to EXPLODED VIEW for the disassembly met

24、hod of each P.W.B included in PANEL FRONT ASSY. 2. HEATSINK MAIN ASSY (1) Disconnect the connector wires and FFC Cable. Picture C Picture D Proceeding : CABINET TOP HEATSINK MAIN ASSY Top view CP110CP111CP701CP107 Cord holder : LooseCord holder : Loose FFC Cable 11 DHT-390XPAVR-390 (2) Remove the sc

25、rews. Please refer to EXPLODED VIEW for the disassembly method of each P.W.B included in HEATSINK MAIN ASSY. Bottom view Picture C Cord holder : Loose Picture D Cord holder : Loose 12 DHT-390XPAVR-390 3. PCB ASSY HDMI (1) Disconnect the connector wire and remove the screws. 4. POWER TRANS (1) Discon

26、nect the connector wires. Proceeding: CABINET TOP PCB ASSY HDMI Picture F CP01 Proceeding : CABINET TOP POWER TRANS Top view CP102 CP701 CP101 CP305 CORD HOLDER : Loose cut 13 DHT-390XPAVR-390 5. CHASSIS BACK (1) Remove the screws. 6. PCB ASSY DSP (1) Disconnect the Board to board. 7. PCB ASSY VIDEO

27、 (1) Disconnect the Board to board. Proceeding : CABINET TOP CHASSIS BACK Picture A Proceeding : CABINET TOP CHASSIS BACK PCB ASSY DSP Top view Board to board DSP Board Proceeding : CABINET TOP CHASSIS BACK PCB ASSY VIDEO Top view Board to board VIDEO Board 14 DHT-390XPAVR-390 8. PCB ASSY POWER (1)

28、Disconnect the connector wires and remove the screws. 9. PCB ASSY MAIN Please refer to EXPLODED VIEW for the disassembly method of PCB ASSY MAIN. Proceeding : CABINET TOP CHASSIS BACK PCB ASSY POWER Top view CP103 POWER Board Proceeding : CABINET TOP CHASSIS BACK PCB ASSY MAIN 15 DHT-390XPAVR-390 CA

29、UTION IN SERVICING 1. Initializing Initialization should be performed when the com, peripheral parts of com, 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” butt

30、on. 4. CLEAR is displayed on the FL tube. The microprocessor will be initialized. 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 com is displayed on FL tube.

31、Version of Main com : “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. Note:If step 4 does not work, start over from step 1. All user settings will be lost and this

32、 factory setting will be recovered when this initialization mode. So make sure to m+emorize your setting for restoring after the initialization. ON/STANDBYSTATUSMEMORY/ENTERSETUP The display switches each time the STATUS or “SETUP” button is pressed. Version of Main com Version of DSPFL tube lights

33、all 16 DHT-390XP ADJUSTMENT Audio Section Idling Current Required measurement equipment: DC Voltmeter 1. Preparation (1) Avoiddirectblowfromanairconditioneroranelectricfan,andadjusttheunitatnormalroomtemperature15C 30C(59F86F). (2) Presetting POWER(Powersourceswitch) OFF SPEAKER (Speaker terminal) N

34、o load (Donotconnectspeaker,dummyresistor,etc.) 2. Adjustment (1) RemovetopcoverandsetVR213FL,FR,C,SL,SR,onMainAmp.Unitatfullycounterclockwise(c)position. (2) ConnectDCVoltmetertotestpoints(FRONT-Lch:TP201FL,FRONT-Rch:TP201FR,CENTERch:TP201C, SURROUND-Lch:TP201SL,SURROUND-Rch:TP201SR). (3)Connectpow

35、ercordtoACLine,andturnpowerswitchON. (4)Presetting. MASTERVOLUME :-counterclockwise(cmin.) SPEAKER (Speaker terminal) : No load (Donotconnectspeaker,dummyresistor,etc.) FUNCTION:EXTIN (5) Within 2 minutes after the power on, turn VR101 clockwise (x)toadjusttheTESTPOINTvoltageto 1.5mV0.5mVDC. (6) Aft

36、er 10 minutes from the preset above, turn VR101 to set the voltage to 2.0mV0.5mVDC. (7)AdjusttheVariableResistorsofotherchannelsinthesameway. VR213FRVR213SLVR213FLVR213CVR213SR S LchF Lch TP201FLTP201SLTP201FRTP201CTP201SR C chF RchS Rch DC Voltmeter MAIN UNIT AMP. UNIT AVR-390 17 DHT-390XPAVR-390 T

37、ROUBLE SHOOTING 1. POWER 1.1. Power not turn on 1.2. Fuse is blown Power not turn on Is the ON/STANDBY indica- tor on the front panel flashing red? YES Are there any incomplete connections in the connec- tors connecting between the various circuit boards? NO Is there a short circuit between the spea

38、ker termi- nals and the ground? YES Correct the short circuit between the speaker and the ground. YESNO NO Connect the connectors properly. Check for damage in the power amplifier circuitry parts and replace any defective parts. Is the fuse blown? NO Refer to Fuse is blown YES Does the power turn on

39、 when the POWER switch is turned off then back on? NO Is a DC 3.3V voltage being supplied from the POWER Bd (CP103 pins 3) to the microprocessor? NO Is a DC 3.3V voltage output when the cord supplying the power from the SUPPLY Bd to the microprocessor (CP103) is unplugged? NO Check the parts from IC

40、300 to the primary circuitry and replace any defective parts. YESYESYES Check the primary circuitry parts including the POWER switch (for poor contacts, etc.), and replace any defec- tive parts. Check the microprocessor periphery circuitry and replace any defective parts. Check the circuitry and par

41、ts from CP103 on the SUPPLY Bd to the microprocessor for damage and short-circuits, and replace any defective parts. Fuse is blown Check for leaks or short cir- cuits in the primary side parts, and replace any defective parts. Check for short circuits in the rectifier diodes and cir- cuitry of the s

42、econdary side rectifying circuits, and replace any defective parts. Check for short circuits in the power stabilizer units regulator output terminal and the ground, and replace any defective parts. After repairing, also replace the fuse. 18 DHT-390XPAVR-390 2. Analog video 2.1. AVR-390 Unless specif

43、ied, VIDEO UNIT part. MONITOR OUT (CVBS/S) Output NG When checking operation, select DVD for the function. Input CVBS Input S A A Input CVBS/S Check 12V, 9V. 12V : CN201-4pin 9V : CN201-6pin NGTo troubleshooting 1.1 Power not turn on. OK Check output Output V : C258 +side Output Y : C259 +side Outpu

44、t C : C262 +side NG Check input of input selector and surrounding circuitry soldering. Input : IC202,IC203,IC204 OK Check cable between main unit and monitor or Check monitor. 19 DHT-390XPAVR-390 3. HDMI/DVI 3.1. No picture or sound is output No picture or sound is output YES Check the HDMI/DVI cabl

45、e connection YES Is the HDMI/DVI cable properly connected? NOThere may be a problem with the HDMI/ DVI cable. Check the connection. YES Are you using an HDMI/DVI selector, repeater or a device for improving picture quality? YESDisconnect everything and connect only the HDMI/DVI cable to check. NO Ar

46、e you using a certified HDMI cable (one with the HDMI stamp)? NOUse a certified HDMI cable (one with the HDMI stamp). YES Are you using an HDMI/DVI cable less than 5 meters in length? NO Replace the HDMI/DVI cable with one that is less than 5 meters in length (2 meters recommended) to check. YES Are

47、 the picture and sound output when another HDMI/DVI cable is used? YES The HDMI/DVI cable is defective. NO Checking the DVD player YES Is the DVD players HDMI output setting correct? YES Check the HDMI output setting, referring to the DVD players operating instructions. YES Are the picture and sound

48、 TV output when the DVD players resolution is changed? YES Set the DVD players output resolution to a resolution with which the TV is compatible. NO Is the DVD player HDCP-compatible? YES The DVD player may not be compatible with HDCP TV. Ask the DVD players manufacturer. NO Are the picture and soun

49、d output when a different DVD player is used? YES The DVD player is defective. NO 20 DHT-390XPAVR-390 Check the TV Is the TV HDCP-compatible? NOUse an HDCP-compatible TV. PC TVs cannot be used. YES Is the TV compatible with resolutions of 1080P? NO If the TV is not compatible with resolutions of 1080P, no picture will be output, even if the DVD players resolution is set to 1080P. YES Is the TVs input set to HDMI? NO Ch