Marantz AV8802 AV8802A Service Manual and Repair Guide

AV Pre Tuner AV8802 /U1B/N1B/FB AV8802A /U1B/N1B/K1B/FB AV8802 / AV8802A Ver. 3 S0995V03DM/DG1502 Copyright 2015 D&M Holdings Inc. All rights reserved. WARNING: Violators will be prosecuted to the maximum extent possible. • Some illustrations using 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. Please refer to the MODIFICATION NOTICE. Service Manual

ABOUT THIS MANUAL .............................................................3 What you can do with this manual ............................................3 Using Adobe Reader (Windows version) ..................................4 SAFETY PRECAUTIONS ..........................................................6 NOTE FOR SCHEMATIC DIAGRAM.........................................7 NOTE FOR PARTS LIST ...........................................................7 TECHNICAL SPECIFICATIONS ................................................9 DIMENSION ...............................................................................9 Precautions During Service...................................................10 Initializing This Unit .................................................................10 Service Jigs .............................................................................10 DISASSEMBLY ........................................................................ 11 1. CX870 ASSY for CX870 model only ..................................14 2. FRONT PANEL ASSY ........................................................14 3. HDAM ASSY ......................................................................15 4. SMPS ASSY.......................................................................15 5. POWER TRANS ................................................................16 6. BACK PANEL ASSY...........................................................17 SPECIAL MODE ......................................................................18 Special Mode Conﬁguration Buttons .......................................18 1. Version Display Mode ........................................................19 2. PANEL / REMOTE LOCK Selection Mode .........................23 3. Selection Modes for Service-related Operations................24 DIAGNOSTIC PATH DIAGRAM .........................................29 4. Additional Source mode .....................................................70 5. CX870 / CY920 Reboot Mode............................................71 6. CX870 / CY920 Initialization Mode ....................................71 JIG FOR SERVICING ..............................................................72 Procedure after Replacing the Microprocessor, etc. ..........74 Firmware Update Procedure..................................................74 1. Updating by USB................................................................74 2. Updating by DPMS.............................................................84 SURROUND MODES AND PARAMETERS ............................91 TROUBLE SHOOTING ............................................................94 1. POWER..............................................................................94 2. Analog video ......................................................................95 3. HDMI/DVI ...........................................................................97 4. AUDIO ................................................................................99 5. Network/Bluetooth/USB ...................................................101 6. SMPS ...............................................................................107 Audio Check PASS ..............................................................109 CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK ........... 110 LEVEL DIAGRAM.................................................................. 111 GND DIAGRAM ..................................................................... 119 POWER DIAGRAM................................................................120 CPU DIAGRAM......................................................................122 PRINTED WIRING BOARDS.................................................123 SCHEMATIC DIAGRAMS (1/38) ...........................................131 SCH01_DIGITAL CONNECT ................................................131 SCH02_DIR ADC ZONEDAC ...............................................132 SCH03_AUDIO PLD .............................................................133 SCH04_DSP1 .......................................................................134 SCH05_DSP2 .......................................................................135 SCH06_DSP3 .......................................................................136 SCH07_DSP4 .......................................................................137 SCH08_MAIN CPU ...............................................................138 SCH09_SUB CPU.................................................................139 SCH10_DECODER...............................................................140 SCH11-1_HDMI SW1 AV8802 ONLY ....................................141 SCH11-2_HDMI SW1 AV8802A ONLY..................................142 SCH12-1_HDMI SW2 AV8802 ONLY....................................143 SCH12-2_HDMI SW2 AV8802A ONLY .................................144 SCH13_IP SCALER ..............................................................145 SCH14_IP SCALER DDR .....................................................146 SCH15-1_VIDEO PLD AV8802 ONLY ..................................147 SCH15-2_VIDEO PLD AV8802A ONLY ................................148 SCH16-1_HDMI RX TX AV8802 ONLY .................................149 SCH16-2_HDMI RX TX AV8802A ONLY...............................150 SCH17-1_HDMI SUPPLY AV8802 ONLY..............................151 SCH17-2_HDMI SUPPLY AV8802A ONLY ...........................152 SCH18-1_NETWOR AV8802 ONLY......................................153 SCH18-2_NETWOR AV8802A ONLY ...................................154 SCH19_MAIN DAC ...............................................................155 SCH20_ZONEDAC ADC.......................................................156 SCH21_REAR USB ..............................................................157 SCH22_AUDIO VIDEO CONNECT ......................................158 SCH23_AUDIO VOLUME .....................................................159 SCH24_PREOUT..................................................................160 SCH25_VIDEO SELECTOR .................................................161 SCH26_CONNECT ...............................................................162 SCH27_HDAM XLR-AMP .....................................................163 SCH28_XLR IN_REMOTE IO_232C ....................................164 SCH29_FRONT HDMI_USB .................................................165 SCH30_FRONT ....................................................................166 SCH31_HDAM CONNECT ...................................................167 SCH32_PHONO ...................................................................168 SCH33_SMPS ......................................................................169 SCH34_XLR OUT1 ...............................................................170 SCH35_XLR OUT2 ...............................................................171 SCH36_XLR OUT3 ...............................................................172 SCH37_CX870 CONNECT AV8802 ONLY ...........................173 SCH38_BT MODULE AV8802 ONLY ....................................174 EXPLODED VIEW .................................................................175 PACKING VIEW .....................................................................176 SEMICONDUCTORS .............................................................177 1. IC's ...................................................................................177 2. FL DISPLAY .....................................................................199 2 CONTENTS

Jump to the target of a schematic diagram connector Click the Ref. No. of the target connector in the red box around a schematic diagram connector. •The screen jumps to the target connector. •Page magniﬁcation stays the same as before the jump. CP401 CP106 v ABOUT THIS MANUAL Read the following information before using the service manual. What you can do with this manual Search for a Ref. No. (phrase) (Ctrl+Shift+F) You can use the search function in Acrobat Reader to search for a Ref. No. in schematic diagrams, printed wiring circuit diagrams, block diagrams, and parts lists. 1.Press Ctrl+Shift+F on the keyboard. • The Search window appears. 2.Enter the Ref. No. you want to search for in the Search window, and then click the Search button. •A list of search results appears. 3.Click an item on the list. • The screen jumps to the page for that item, and the search phrase is displayed. Ctrl Shift F 3

Using Adobe Reader (Windows version) • Properties Click this button and check that the printer is set to a suitable paper size. • Page to print Select the following checkbox. "More Options" : "Current View" • Page Sizing & Handling Select the following checkbox. "Size" / "Size Options" : "Fit" Add notes to this data (Sign) The Sign function lets you add notes to the data in this manual. Save the file once you have finished adding notes. [Example using Adobe Reader X] On the "View" menu, click "Sign". • The Sign pane appears. [Example using Adobe Reader 9] On the "Document" menu, click "Sign". Magnify schematic / printed circuit board diagrams - 1 (Ctrl+Space, mouse operation) Press Ctrl+Space on the keyboard and drag the mouse to select the area you want to view. • The selected area is magnified. • When you want to move the area shown, hold down Space and drag the mouse. • When you want to show a full page view, press Ctrl+0 on the keyboard. Ctrl Space 0 Print a magnified part of the manual The Properties dialog box and functions will vary depending on your printer. 1. Drag the mouse to magnify the part you want to print. 2. On the "File" menu, click "Print". 3. Configure the following settings in the Print dialog box. 4. Click the Print button to start printing. 4

Magnify schematic / printed circuit board diagrams - 2 (Pan & Zoom function) The Pan & Zoom function lets you see which part of a magniﬁed diagram is being shown in a separate window. [Example using Adobe Reader X] On the "View" menu, point to "Zoom", and then click "Pan & Zoom". • The Pan & Zoom window appears on the screen. [Example using Adobe Reader 9] On the "Tools" menu, point to "Select & Zoom", and then click "Pan & Zoom Window". Magnify schematic / printed circuit board diagrams - 3 (Loupe Tool function) The Loupe Tool function lets you magnify a speciﬁc part of a diagram in a separate window. [Example using Adobe Reader X] On the "View" menu, point to "Zoom", and then click "Loupe Tool". • The Loupe Tool window appears on the screen. [Example using Adobe Reader 9] On the "Tools" menu, point to "Select & Zoom", and then click "Loupe Tool Window". 5

SAFETY PRECAUTIONS The following items should be checked for continued protection of the customer and the service technician. leakage current check Before returning the set to the customer, be sure to carry out 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 set is defective. Be sure to test for leakage current with the AC plug in both polarities, in addition, when the set's power is in each state (on, off and standby mode), if applicable. CAUTION Please heed the following cautions and instructions during servicing and inspection. ◎ Heed the cautions! Cautions which are delicate in particular for servicing are labeled on the cabinets, the parts and the chassis, etc. Be sure to heed these cautions and the cautions described in the handling instructions. ◎ Cautions concerning electric shock! (1) An AC voltage is impressed on this set, so if you touch internal metal parts when the set is energized, you may get an electric shock. Avoid getting an electric shock, by using an isolating transformer and wearing gloves when servicing while the set is energized, or by unplugging the power cord when replacing parts, for example. (2) There are high voltage parts inside. Handle with extra care when the set is energized. ◎ Caution concerning disassembly and assembly! Through great care is taken when parts were manufactured from sheet metal, there may be burrs on the edges of parts. The burrs could cause injury if fingers are moved across them in some rare cases. Wear gloves to protect your hands. ◎ Use only designated parts! The set's parts have specific safety properties (fire resistance, voltage resistance, etc.). Be sure to use parts which have the same properties for replacement. The burrs have the same properties. In particular, for the important safety parts that are indicated by the z mark on schematic diagrams and parts lists, be sure to use the designated parts. ◎ Be sure to mount parts and arrange the wires as they were originally placed! For safety seasons, some parts use tapes, 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 wires by arranging them and using clamps to keep them away from heating and high voltage parts, so be sure to set everything back as it was originally placed. ◎ Make a safety check after servicing! Check that all screws, parts and wires removed or disconnected when servicing have been put back in their original positions, check that no serviced parts have deteriorate the area around. Then make 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 on the power. Using a 500V insulation resistance tester, check that the insulation resistance value between 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. Many of the electric and the structural parts used in the set have special safety properties. In most cases these properties are difficult to distinguish by sight, and the use of 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 the parts list in this service manual. Be sure to replace them with the parts which have the designated part number. (1) Schematic diagrams.......Indicated by the z mark. (2) Parts lists.......Indicated by the z mark. The use of parts other than the designated parts could cause electric shocks, fires or other dangerous situations. CAUTION Concerning important safety parts 6

NOTE FOR SCHEMATIC DIAGRAM WARNING: Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer. CAUTION: Before returning the set to the customer, be sure to carry out 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 set is defective. WARNING: DO NOT return the set to the customer unless the problem is identiﬁed and remedied. NOTICE: ALL RESISTANCE VALUES IN OHM. k=1,000 OHM / M=1,000,000 OHM ALL CAPACITANCE VALUESARE EXPRESSED IN MICRO FARAD, UNLESS OTHERWISE INDICATED. P INDICATES MICRO-MICRO FARAD. EACH VOLTAGE AND CURRENT ARE MEASURED AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. NOTE FOR PARTS LIST 1. Parts indicated by "nsp" on this table cannot be supplied. 2. When ordering a part, make a clear distinction between "1" and "I" (i) to avoid mis-supplying. 3. A part ordered without specifying its part number can not be supplied. 4. Part indicated by " ★ " mark is not illustrated in the exploded view. WARNING: Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer. INSTRUCTIONS FOR HANDLING SEMI-CONDUCTORS AND OPTICAL UNIT Electrostatic breakdown of the semi-conductors or optical pickup may occur due to a potential difference caused by electrostatic charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a grounding band (1 MΩ) that is properly grounded to remove any static electricity that may be charged on the body. 2. Ground for Workbench Be sure to place a conductive sheet or copper plate with proper grounding (1 MΩ) on the workbench or other surface, where the semi-conductors are to be placed. Because the static electricity charge on clothing will not escape through the body grounding band, be careful to avoid contacting semi-conductors with your clothing <Incorrect> CBA Grounding Band Conductive Sheet or Copper Plate 1MΩ 1MΩ <Correct> CBA 7

Personal notes: 8

TECHNICAL SPECIFICATIONS n Audio section • Analog Input sensitivity： Unbalanced RCA input：200 mV/47 kΩ /Input impedance Balanced XLR input：400 mV/94 kΩ Frequency response：10 Hz - 100 kHz — +1, –3 dB(Direct mode) S/N： 105 dB(IHF-A weighted, Direct mode) Distortion： 0.005 % (20 Hz – 20 kHz) (Direct mode) Rated output： Unbalanced RCA pre-output : 1.2 V Balanced XLR pre-output: 2.4 V • Digital D/A output：Rated output — 2 V (at 0 dB playback) Total harmonic distortion — 0.008 % (1 kHz, at 0 dB) S/N ratio — 102 dB Dynamic range — 100 dB Digital input：Format — Digital audio interface • Phono equalizer Input sensitivity： 2.5 mV RIAA deviation： ±1 dB (20 Hz to 20 kHz) S/N： 74 dB (IHF-A, with 5 mV input)) Rated output： 150 mV Distortion factor： 0.03 % (1 kHz, 3 V) n Video section • Standard video connectors Input/output level and impedance：1 Vp-p, 75 Ω Frequency response：5 Hz – 10 MHz — 0, –3 dB • Color component video connector Input/output level and impedance：Y signal — 1 Vp-p, 75 Ω PB / CB signal — 0.7 Vp-p, 75 Ω PR / CR signal — 0.7 Vp-p, 75 Ω Frequency response：5 Hz - 60 MHz — 0, –3 dB n Tuner section Reception frequency range：FM 87.5 MHz - 107.9 MHz (for U) FM 87.5 MHz - 108.0 MHz (for N, K) FM 76.0 MHz - 90.0 MHz (for F) AM 530 kHz - 1710 kHz (for U) AM 522 kHz - 1611 kHz (for N, K) AM 522 kHz - 1629 kHz (for F) Effective sensitivity： FM 1.5μV (14.8dBf) (for U) FM 1.2μV (12.8dBf) (for N, K, F) AM 20 μV (for U) AM 18 μV (for N, K, F) 50 dB sensitivity： MONO ― 2.8 μV (20.2 dBf) (for N, K, F) S/N ratio (IHF-A)： MONO ― 78 dB (for U) MONO ― 70 dB (for N, K, F) STEREO ― 68 dB (for U) STEREO ― 67 dB (for N, K, F) HD ― FM 85dB AM 85dB (for U) Distortion (1 kHz)： MONO ― 0.1 % (for U) MONO ― 0.7 % (1 kHz) (for N, K, F) SRETEO ― 0.2 % (for U) SRETEO ― 1.0 % (1 kHz) (for N, K, F) HD ― FM 0.02% AM 0.02% (for U) n Wireless LAN section Network type (wireless LAN standard)： Conforming to Wi-Fi®z1 Security： WEP 64 bit, WEP 128 bit WPA/WPA2-PSK (AES) WPA/WPA2-PSK (TKIP) Radio frequency： 2.4 GHz No. of channels： 1 - 11 ch (for U) 1 - 13 ch (for N, K, F) z1 The Wi-Fi® CERTIFIED Logo and the Wi-Fi CERTIFIED On-Product Logo are registered trademarks of the Wi-Fi Alliance. n Bluetooth section Communications system：Bluetooth Version 2.1 + EDR (Enhanced Data Rate) Transmission power：Maximum 2.5 mW (Class 2) Maximum communication range：Approx. 32.8 ft/10 m in line of sight Frequency band：2.4 GHz band Modulation scheme：FHSS (Frequency-Hopping Spread Spectrum) Supported profiles：A2DP (Advanced Audio Distribution Profile) 1.2 AVRCP (Audio Video Remote Control Profile) 1.4 Corresponding codec：SBC, AAC Transmission range (A2DP)：20 Hz - 20,000 Hz n General Power supply：(for U) : AC 120 V, 60 Hz (for N) : AC 230 V, 50 Hz / 60Hz (for K) : AC 220 V, 50 Hz (for F) : AC 100 V, 50 Hz / 60Hz Power consumption：90W Power consumption in standby mode：0.2W Power consumption in CEC standby mode：0.5W Power consumption in network standby mode：4.5W For purposes of improvement, specifications and design are subject to change without notice. DIMENSION Unit：mm Weight：29 lb 16 oz (13.6 kg) 32 50 55 39 11 171 185 248 361 410 17 267 389 17 50 340 14 440 56 9

PRECAUTIONS DURING SERVICE Initializing This Unit Initialize this unit if you have replaced the microcomputer, one of the parts around the microcomputer, or the digital PCB. 1. Press the power button to turn off the power. 2. Hold down buttons "MOVIE" and "MUSIC" at the same time and press the power button to turn on the power. 3. Release the buttons after confirming that the display flashes in intervals of approximately 1 second. ＊ The unit is initialized. NOTE： • If the status in step 3 does not occur, start again from step 1. • Initializing the device restores settings configured by the user to the factory settings. Take note of your settings beforehand and reconfigure them after initialization. Service Jigs The following jigs (extension cable kit) are used when repairing the PCBs. Order the jigs from your dealer if necessary. 8U- 110084S : EXTENSION UNIT KIT : 2 Set (See 72 page) X MUSIC MOVIE 10

Marantz AV8802 AV8802A Service Manual and Repair Guide

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