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. FRONT PANEL ASSY ........................................................13
2. RADIATOR ASSY ...............................................................14
3. DIGITAL PCB .....................................................................15
4. VIDEO PCB ........................................................................16
5. INPUT PCB ........................................................................16
6. SPK PCB ............................................................................17
7. SMPS PCB .........................................................................18
8. TRANS POWER ................................................................18
SPECIAL MODE
......................................................................19
Special Mode Conîšżguration Buttons .......................................19
1. Version Display Mode ........................................................20
2. PANEL / REMOTE LOCK Selection Mode .........................24
3. Selection Modes for Service-related Operations ................25
DIAGNOSTIC PATH DIAGRAM .........................................30
4. Remote ID Setup Mode ......................................................64
5. Protection Pass Mode ........................................................65
6. CX870 / CY920 Reboot mode ............................................65
7. CX870 / CY920 Initialization mode ....................................66
JIG FOR SERVICING
..............................................................67
Procedure after Replacing the Microprocessor, etc.
..........70
Firmware Update Procedure
..................................................70
1. Updating by USB ................................................................70
2. Updating by DPMS .............................................................79
ADJUSTMENT
.........................................................................86
SURROUND MODES AND PARAMETERS
............................87
TROUBLE SHOOTING
............................................................90
1. POWER ..............................................................................90
2. Analog video ......................................................................91
3. HDMI/DVI ...........................................................................95
4. AUDIO ................................................................................97
5. Network/Bluetooth/USB ...................................................100
6. SMPS ...............................................................................105
Audio Check PASS
..............................................................107
CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK
...........108
LEVEL DIAGRAM
..................................................................109
BLOCK DIAGRAM
.................................................................115
POWER DIAGRAM
................................................................ 116
WIRING DIAGRAM
................................................................117
PRINTED WIRING BOARDS
................................................. 118
SCHEMATIC DIAGRAMS (1/33 )
..........................................124
SCH01_DIGITAL CONNECT ................................................124
SCH02_DIGITAL POWER ....................................................125
SCH03_MAIN CPU ...............................................................126
SCH04_SUB CPU .................................................................127
SCH05_CPU LEVEL CHG ....................................................128
SCH06_DIR ..........................................................................129
SCH07_AUDIO PLD .............................................................130
SCH08_DSP .........................................................................131
SCH09_MAIN DAC ...............................................................132
SCH10_CY920 ......................................................................133
SCH11_VIDEO DECODER ...................................................134
SCH12_HDMI SW2 ...............................................................135
SCH13_HDMI SW1 ...............................................................136
SCH14_VSP & IP & OSD ......................................................137
SCH15_VIDEO PLD .............................................................138
SCH16_HDMI TX & SCALER ...............................................139
SCH17_ADAPTER ................................................................140
SCH18_BLUETOOTH ...........................................................141
SCH19_INPUT1 ....................................................................142
SCH20_INPUT2 ....................................................................143
SCH21_PREOUT ..................................................................144
SCH22_F-HDMI ....................................................................145
SCH23_VIDEO .....................................................................146
SCH24_RC-5 & MX-PORT ...................................................147
SCH25_RS232C & TRIGGER ..............................................148
SCH26_CONNECT_A ...........................................................149
SCH27_CONNECT_B ..........................................................150
SCH28_SPK .........................................................................151
SCH29_REGULATOR & TUNER ..........................................152
SCH30_7CH AMP 1 ..............................................................153
SCH31_7CH AMP 2 ..............................................................154
SCH32_FRONT ....................................................................155
SCH33_SMPS ......................................................................156
EXPLODED VIEW
.................................................................157
PACKING VIEW
.....................................................................158
SEMICONDUCTORS
.............................................................159
1. IC's ...................................................................................159
2. FL DISPLAY .....................................................................181
CONTENTS
2
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