Denon AVR-1910 1620 1610 790 590 Service Manual & Repair Guide

D&M Holdings lnc. e Copyright 2010 D&M Holdings Inc. All rights reserved. WARNING: Violators will be prosecuted to the maximum extent possible. SERVICE MANUAL AV SURROUND RECEIVER MODEL JP E3 E2 EK EA E1C E1K EUT AVR-1910 3 3 3 AVR-1620 3 AVR-1610 3 3 3 AVR-790 3 3 AVR-590 3 3 Ver. 7 ● 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. Please refer to the MODIFICATION NOTICE. S0183-1V06DM/DG1011

2 AVR-1910/1620/1610/790/590 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 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 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 z 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 in- sulating 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 discon- nected 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. Us- ing 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. Concerning important safety parts 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 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 could 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 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

3 AVR-1910/1620/1610/790/590 DIMENSION AVR-1910 model

4 AVR-1910/1620/1610/790/590 AVR-1610/1620 model

5 AVR-1910/1620/1610/790/590 AVR-790 model

6 AVR-1910/1620/1610/790/590 AVR-590 model

7 AVR-1910/1620/1610/790/590 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. Otherwise, incorrect arrangement can be a cause of noise generation. Wire arrangement viewed from the top Back Panel side Front Panel side

8 AVR-1910/1620/1610/790/590 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. About the photos used for descriptions in the “DISASSEMBLY” section. • The direction from which the photographs used herein were photographed is indicated at "Direction of photograph: ***" at the left of the respective photographs. • Refer to the table below for a description of the direction in which the photos were taken. • Photographs for which no direction is indicated were taken from above the product. • The photograph is AVR-1910. CABINET TOP PANEL FRONT ASSY PCB CNT1 PCB SPEAKER ASSY Refer to "DISASSEMBLY 1.PANEL FRONT ASSY" Refer to "DISASSEMBL 2.PCB CNT1" Refer to "DISASSEMBLY 3.PCB SPEAKER ASSY" and "EXPLODED VIEW" and "EXPLODED VIEW" and "EXPLODED VIEW" PCB POWER SW ASSY PCB CNT1 (Ref. No. of EXPLODED VIEW : 71) PCB SPEAKER ASSY (Ref. No. of EXPLODED VIEW : 9) (Ref. No. of EXPLODED VIEW : 63) PCB FUNC ASSY (Ref. No. of EXPLODED VIEW : 10) PCB FRONT ASSY (Ref. No. of EXPLODED VIEW : 11) CHASSIS BACK PCB POWER/POWER SUPPLY ASSY PCB ENCORDER Refer to "DISASSEMBLY 4.CHASSIS BACK" Refer to "DISASSEMBLY (Ref. No. of EXPLODED VIEW : 13) and "EXPLODED VIEW" 6.PCB POWER/POWER SUPPLY ASSY" PCB HEAD PHONE ASSY and "EXPLODED VIEW" (Ref. No. of EXPLODED VIEW : 14) PCB POWER SUPPLY ASSY PCB V-AUX ASSY (Ref. No. of EXPLODED VIEW : 56) (Ref. No. of EXPLODED VIEW : 21) PCB POWER ASSY PCB MIC ASSY PCB MAIN ASSY (Ref. No. of EXPLODED VIEW : 57) (Ref. No. of EXPLODED VIEW : 22) Refer to "DISASSEMBLY 5.PCB MAIN ASSY" PCB CNT ENCORDER and "EXPLODED VIEW" (Ref. No. of EXPLODED VIEW : 61) PCB MAIN ASSY TRANS MAIN PCB SW (Ref. No. of EXPLODED VIEW : 50) Refer to "DISASSEMBLY 8.TRANS MAIN" (Ref. No. of EXPLODED VIEW : 78) PCB INPUT ASSY and "EXPLODED VIEW" (Ref. No. of EXPLODED VIEW : 51) TRANS MAIN PCB VIDEO ASSY (Ref. No. of EXPLODED VIEW : 46) PCB AMP ASSY (Ref. No. of EXPLODED VIEW : 53) Refer to "DISASSEMBLY 7.PCB AMP ASSY" PCB DIGITAL ASSY and "EXPLODED VIEW" (Ref. No. of EXPLODED VIEW : 54) PCB AMP ASSY PCB HDMI ASSY (Ref. No. of EXPLODED VIEW : 33) (Ref. No. of EXPLODED VIEW : 55) The viewpoint of each photograph (Photografy direction) ［View from above］ Front side Direction of photograph: B Direction of photograph: D Direction of photograph: C Direction of photograph: A

9 AVR-1910/1620/1610/790/590 1. PANEL FRONT ASSY (1) Remove the screws. (2) Cut the wire clamp band, and loose the style pin. (3) Cut the wire clamp band, then loose the style pin and Cord holder. Disconnect the connector wire and FFC Cable. Proceeding : CABINET TOP → PANEL FRONT ASSY View from bottom Direction of photograph: D Style pin : Loose cut Cord holder : Loose Cord holder : Loose Style pin : Loose CP1501 CP1300 Style pin : Loose CP1001 CP1705 FFC Cable CP1307 cut Please refer to "EXPLODED VIEW" for the disassembly method of each P.W.B included in PANEL FRONT ASSY.

10 AVR-1910/1620/1610/790/590 2. PCB CNT1 (1) Disconnect the connector board. 3. PCB SPEAKER ASSY (1) Disconnect the connector wires. (2) Remove the screws. Proceeding : CABINET TOP → PCB CNT1 PCB CNT1 PCB CNT (1910/790 model) Board to board Board to board Board to board Proceeding : CABINET TOP → PCB SPEAKER ASSY CP1001 (1910/790 model) CN1309 (1910/790 model) CP1002 (1910/790 model) ※ CP1003 (1610/1620/590/ model), CP1004 (1610/1620/590/ model) PCB SPEAKER ASSY Direction of photograph: A

Denon AVR-1910 1620 1610 790 590 Service Manual & Repair Guide

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