2
CONTENTS
SAFETY PRECAUTIONS ..........................................................4
NOTE FOR SCHEMATIC DIAGRAM
.........................................5
TECHNICAL SPECIFICATIONS
................................................6
DIMENSION
...............................................................................6
CAUTIONS IN SERVICING
.......................................................7
Initializing AV Surround Receiver ..............................................7
Service Jig ................................................................................7
DISASSEMBLY
..........................................................................8
1. FRONT PANEL ASSY .........................................................10
2. PCB RS232C .....................................................................11
3. PCB HDMI ...........................................................................12
4. POWER TRANS MAIN ........................................................13
5. PCB AV ASSY .....................................................................13
6. PCB SMPS/PCB SPK .........................................................14
7. PCB REG/PCB REG_CNT ..................................................15
8. RADIATOR ASSY ................................................................16
SPECIAL MODE
......................................................................18
Special mode setting button ....................................................18
1. µcom/DSP Version display mode ........................................19
2. Errors checking mode (Displaying the protection history) ...21
3. DUAL BACKUP MEMORY ..................................................23
4. DIAGNOSTIC MODE
(Video/Audio (signal) path conrmation mode) .......................25
BLOCK DIAGRAM
...................................................................28
JIG FOR SERVICING
..............................................................45
WHEN THE MICROPROCESSOR IS REPLACED WITH A
NEW ONE
................................................................................47
PROCEDURE
FOR UPGRADING THE VERSION OF THE
FIRMWARE
..............................................................................47
1. How to update by DFW .......................................................47
2. How to update by DPMS .....................................................51
ADJUSTMENT
.........................................................................58
SURROUND MODES AND PARAMETERS
............................59
TROUBLE SHOOTING
............................................................63
1. POWER ...............................................................................63
2. Analog video ........................................................................64
3. HDMI/DVI ............................................................................69
4. AUDIO .................................................................................78
5. Network/USB .......................................................................81
6. SMPS ..................................................................................84
CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK
.............88
LEVEL DIAGRAM
....................................................................89
PRINTED WIRING BOARDS
...................................................95
7CH AMP ................................................................................95
SMPS .....................................................................................96
SPK ........................................................................................97
REG .......................................................................................99
FRONT_CNT ..........................................................................99
SIDE_CNT ............................................................................100
REG_CNT ............................................................................100
RS232C .................................................................................101
REMOTE CONTROL IN / M-XPort ........................................101
USB .......................................................................................101
H/P .......................................................................................101
FRONT .................................................................................102
AV .........................................................................................103
HDMI ....................................................................................104
SCHEMATIC DIAGRAMS ......................................................106
7CH-AMP UNIT (1/2) ............................................................106
7CH-AMP UNIT (2/2) ............................................................107
SPK UNIT ..............................................................................108
SMPS UNIT ...........................................................................109
REG UNIT .............................................................................110
SIDE_CNT UNIT ................................................................... 111
FRONT_CNT UNIT ...............................................................112
RC5_MX UNIT ) ....................................................................113
RS232C UNIT ......................................................................113
EXT_IN UNIT ........................................................................114
AUDIO_VIDEO UNIT (1/3) ....................................................115
AUDIO_VIDEO UNIT (2/3) ....................................................116
AUDIO_VIDEO UNIT (3/3) ....................................................117
HDMI UNIT (1/13) .................................................................118
HDMI UNIT (2/13) .................................................................119
HDMI UNIT (3/13) .................................................................120
HDMI UNIT (4/13) .................................................................121
HDMI UNIT (5/13) .................................................................122
HDMI UNIT (6/13) .................................................................123
HDMI UNIT (7/13) .................................................................124
HDMI UNIT (8/13) .................................................................125
HDMI UNIT (9/13) .................................................................126
HDMI UNIT (10/13) ...............................................................127
HDMI UNIT (11/13) ................................................................ 128
HDMI UNIT (12/13) ...............................................................129
HDMI UNIT (13/13) ...............................................................130
FRONT UNIT .........................................................................131
V.AUX UNIT ..........................................................................131
FUNCTION_CNT UNIT .........................................................131
FUNCTION UNIT ..................................................................131
H/P UNIT ...............................................................................131
USB UNIT..............................................................................131
WIRING DIAGRAM
................................................................132
EXPLODED VIEW
..................................................................133
PARTS LIST OF EXPLODED VIEW
......................................135
PACKING VIEW
.....................................................................138
PARTS LIST OF PACKING & ACCESSORIES
.....................138
SEMICONDUCTORS
.............................................................140
1. IC's ....................................................................................140
2. FL DISPLAY.......................................................................171
PARTS LIST OF P.C.B. UNIT
................................................172
PCB 7CH_AMP ASS'Y ..........................................................172
PCB SPK ASS'Y ....................................................................176
PCB REG_CNT ASS'Y ..........................................................179
PCB FRONT ASS'Y...............................................................181
PCB AUDIO_VIDEO ASS'Y ..................................................183
PCB HDMI ASS'Y ..................................................................186
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