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1、D&M Holdings lnc. e SERVICE MANUAL AV SURROUND RECEIVER AV SURROUND AMPLIFIER MODELJPEUECE2EKE2AE1CEUT AVR-4310CI ? AVR-4310 ? ? MODELJPEUECE2EKE2AE1CEUT AVC-4310 ? ? s d Ver. 6 For purposes of improvement, specifications and design are subject to change without notice. Please use this service manua
2、l with referring to the operating instructions without fail. Some illustrations using in this service manual are slightly different from the actual set. S0025-1V06DM/DG0912 Please refer to the MODIFICATION NOTICE. RadioFans.CN 2 AVR-4310CI/AVR-4310/AVC-4310 Please heed the points listed below during
3、 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 electri
4、c shock! (1) An AC voltage is impressed on this set, so touching in- ternal 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, un- plugging the power
5、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 whi
6、ch could cause injury if fingers are moved across them. Use gloves to protect your hands. Only use designated parts! The sets parts have specific safety properties (fire resis- tance, voltage resistance, etc.). For replacement parts, be sure to use parts which have the same properties. In par- ticul
7、ar, for the important safety parts that are marked z on wiring diagrams and parts lists, be sure to use the desig- nated parts. Be sure to mount parts and arrange the wires as they were originally! For safety reasons, some parts use tape, tubes or other in- sulating materials, and some parts are mou
8、nted 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 screw
9、s, parts and wires removed or discon- nected for servicing have been put back in their original po- sitions, inspect that no parts around the area that has been serviced have been negatively affected, conduct an insu- lation check on the external metal connectors and between the blades of the power
10、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. Us- ing a 500V insulation resistance tester, check that the in- sulation resistance between the terminals of
11、the power plug and the externally exposed metal parts (antenna ter- minal, headphones terminal, microphone terminal, input terminal, etc.) is 1M or greater. If it is less, the set must be inspected and repaired. Concerning important safety parts Many of the electric and structural parts used in the
12、set have special safety properties. In most cases these prop- erties are difficult to distinguish by sight, and using re- placement parts with higher ratings (rated power and withstand voltage) does not necessarily guarantee that safety performance will be preserved. Parts with safety properties are
13、 indicated as shown below on the wiring dia- grams and parts lists is this service manual. Be sure to re- place 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 co
14、uld result in electric shock, fires or other dangerous situations. 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
15、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 CAUTION RadioFans.CN 3 AVR-4310CI/AVR-4310/AVC-4310 DIMENSION AVR-4310CI/AV
16、R-4310/AVC-4310 344 434 155 15.5 170.5 20.7 244.5 372.8 20.5 414 54.7 RadioFans.CN 4 AVR-4310CI/AVR-4310/AVC-4310 WIRE ARRANGEMENT 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
17、. Otherwise, incorrect arrangement can be a cause of noise generation. Wire arrangement viewed from the top Front Panel side Back Panel side RadioFans.CN 5 AVR-4310CI/AVR-4310/AVC-4310 CAUTION IN SERVICING Before the Digital P.W.B. are replaced If you cannot specify the cause of the digital PWB defe
18、ct, carry out Initializing Update to latest firmware. The defect may be cleared. See the following for the method of initializing the com. Initializing AV SURROUND RECEIVER AV SURROUND RECEIVER initialization should be performed when the com, peripheral parts of com, and Digital P.W.B. are replaced.
19、 1. Switch off the unit. 2. Hold the following STANDARD button and DSP SIMULATION button, and switch on the unit. 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. Note:If step 3 do
20、es 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 memorize your setting for restoring after the initialization. JIG to use for servicing When you repair the printing board, you can use the fol
21、lowing JIG. Please order to Denon Official Service Distributor in your region if necessary. Extention cable kit 00D SPK- 561 EXTENSION UNIT KIT : 1 Set 00D SPK- 562 TUCP CONN. JOINT KIT : 1 Set Extention cable for Idling Current Parts Number for Extension Cables and Quantity of Unit. How to use and
22、Adjust Idle Current. 1. The thin and hard plate (ex. Ruler) is fixed with the tape behind the cable. 2. The voltmeter is connected with the other side of the extension cable. 3. Refer to ADJUSTMENT(Idling Current). Parts NumberParts NameQty / unitRemarks 612050082004D6P 250mm NH1L=250mm 6P NH Cable
23、612050083007D8P 250mm NH1L=250mm 8P NH Cable 1,22,3 RadioFans.CN 6 AVR-4310CI/AVR-4310/AVC-4310 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
24、, observe attention of assembling it. TOP COVER BACK PANEL UNIT ASSYFRONT PANEL UNIT ASSY Refer to DISASSEMBLYREG UNITRefer to DISASSEMBLY 2. BACKPANEL UNIT ASSYRefer to DISASSEMBLY1.FRONT PANEL UNIT ASSY 5. REG UNITP.SW UNIT and EXPLODED VIEW (Ref. No. of EXPLODED VIEW : A-8) DIGITAL UNIT ASSYREG U
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