2
CONTENTS
SAFETY PRECAUTIONS ..........................................................3
NOTE FOR SCHEMATIC DIAGRAM
.........................................4
TECHNICAL SPECIFICATIONS
................................................5
DIMENSION
...............................................................................5
CAUTIONS IN SERVICING
.......................................................6
Initializing AV SURROUND RECEIVER ....................................6
Service Jig ................................................................................6
DISASSEMBLY
..........................................................................7
1. FRONT PANEL ASSY ...........................................................9
2. PCB HDMI ...........................................................................10
3. POWER TRANS MAIN ........................................................ 11
4. PCB AUDIO_VIDEO ASSY .................................................11
5. PCB SMPS/PCB SPK .........................................................12
6. PCB REG/PCB REG_CNT ..................................................13
7. RADIATOR ASSY ................................................................14
SPECIAL MODE
......................................................................16
Special mode setting button ....................................................16
1. µcom/DSP Version display mode ........................................17
2. Errors checking mode (Displaying the protection history) ...19
3. Remote ID Setup mode .......................................................21
4. DIAGNOSTIC MODE
(Video/Audio (signal) path conrmation mode) ...................23
BLOCK DIAGRAM
...................................................................25
JIG FOR SERVICING
..............................................................39
WHEN THE MICROPROCESSOR IS REPLACED WITH A
NEW ONE
................................................................................41
PROCEDURE
FOR UPGRADING THE VERSION OF THE
FIRMWARE
..............................................................................41
1. How to update by DFW .......................................................41
ADJUSTMENT
.........................................................................45
SURROUND MODES AND PARAMETERS
............................46
TROUBLE SHOOTING
............................................................50
1. POWER ...............................................................................50
2. Analog video ........................................................................51
3. HDMI/DVI ............................................................................56
4. AUDIO .................................................................................61
5. SMPS ..................................................................................64
CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK
.............68
LEVEL DIAGRAM
....................................................................69
PRINTED WIRING BOARDS
...................................................75
7CH AMP ................................................................................75
SPMS .....................................................................................76
SPK ........................................................................................77
REG .......................................................................................79
FRONT_CNT ..........................................................................79
SIDE_CNT ..............................................................................80
REG_CNT ..............................................................................80
FRONT ...................................................................................81
FUNCTION ..............................................................................82
FUNCTION CNT .....................................................................82
V.AUX .....................................................................................82
H/P .........................................................................................82
AUDIO_VIDEO ......................................................................83
HDMI ......................................................................................84
SCHEMATIC DIAGRAMS ........................................................86
7CH-AMP UNIT (1/2) ..............................................................86
7CH-AMP UNIT (2/2) ..............................................................87
SPK UNIT ................................................................................88
SMPS UNIT .............................................................................89
REG UNIT ...............................................................................90
SIDE_CNT UNIT .....................................................................91
FRONT_CNT UNIT .................................................................92
SIRIUS UNIT (AVR-2112CI ONLY) .........................................93
RS232C UNIT (AVR-2112CI ONLY) ........................................93
AUDIO_VIDEO UNIT (1/3) ......................................................94
AUDIO_VIDEO UNIT (2/3) ......................................................95
AUDIO_VIDEO UNIT (3/3) ......................................................96
HDMI UNIT (1/13) ...................................................................97
HDMI UNIT (2/13) ...................................................................98
HDMI UNIT (3/13) ...................................................................99
HDMI UNIT (4/13) .................................................................100
HDMI UNIT (5/13) .................................................................101
HDMI UNIT (6/13) .................................................................102
HDMI UNIT (7/13) .................................................................103
HDMI UNIT (8/13) .................................................................104
HDMI UNIT (9/13) .................................................................105
HDMI UNIT (10/13) ...............................................................106
HDMI UNIT (11/13) ................................................................107
HDMI UNIT (12/13) ...............................................................108
HDMI UNIT (13/13) ...............................................................109
FRONT UNIT .........................................................................110
V.AUX UNIT ..........................................................................110
FUNCTION_CNT UNIT .........................................................110
FUNCTION UNIT ..................................................................110
H/P UNIT ...............................................................................110
WIRING DIAGRAM
................................................................ 111
EXPLODED VIEW
..................................................................112
PARTS LIST OF EXPLODED VIEW
...................................... 113
PACKING VIEW
.....................................................................115
PARTS LIST OF PACKING & ACCESSORIES
..................... 115
SEMICONDUCTORS
.............................................................117
1. IC's ....................................................................................117
2. FL DISPLAY.......................................................................142
PARTS LIST OF P.C.B. UNIT
................................................144
PCB 7CH_AMP ASS'Y ..........................................................144
PCB SPK ASS'Y ....................................................................148
PCB REG_CNT ASS'Y ..........................................................151
PCB FRONT ASS'Y...............................................................153
PCB AUDIO_VIDEO ASS'Y ..................................................155
PCB HDMI ASS'Y ..................................................................157
To Next Page
Loading...
Need help?
General
