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. XLR PCB ............................................................................17
7. SMPS PCB .........................................................................17
8. TRANS POWER ................................................................17
SPECIAL MODE
......................................................................18
Special Mode Conîšżguration 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. CX870 / CY920 Reboot mode ............................................71
5. CX870 / CY920 Initialization mode ....................................71
JIG FOR SERVICING
..............................................................72
Procedure after Replacing the Microprocessor, etc.
..........75
Firmware Update Procedure
..................................................75
1. Updating by USB ................................................................75
2. Updating by DPMS .............................................................84
SURROUND MODES AND PARAMETERS
............................91
TROUBLE SHOOTING
............................................................94
1. POWER ..............................................................................94
2. Analog video ......................................................................95
3. HDMI/DVI ...........................................................................98
4. AUDIO ..............................................................................100
5. Network/Bluetooth/USB ...................................................102
6. SMPS ...............................................................................107
Audio Check PASS
..............................................................109
CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK
...........110
LEVEL DIAGRAM
.................................................................. 111
POWER DIAGRAM
................................................................ 118
WIRING DIAGRAM
................................................................119
PRINTED WIRING BOARDS
.................................................120
SCHEMATIC DIAGRAMS (1/41)
...........................................127
SCH01_DIGITAL_CONNECT ...............................................127
SCH02_DIGITAL_POWER ...................................................128
SCH03_MAIN_CPU ..............................................................129
SCH04_SUB_CPU ................................................................130
SCH05_CPU_LEVEL_CHG ..................................................131
SCH06_DIR ..........................................................................132
SCH07_AUDIO_PLD ............................................................133
SCH08_DSP1 .......................................................................134
SCH09_DSP2 .......................................................................135
SCH10_DSP3 .......................................................................136
SCH11_DSP4........................................................................137
SCH12_ADC .........................................................................138
SCH13_ZONE_DAC .............................................................139
SCH14_CY920 ......................................................................140
SCH15_VIDEO_DECODER .................................................141
SCH16_HDMI_SW2 ..............................................................142
SCH17_HDMI_SW1 ..............................................................143
SCH18_VSP_IP_OSD ..........................................................144
SCH19_VIDEO_PLD ............................................................145
SCH20_HDMI_TX_SCALER ................................................146
SCH21_ADAPTER ................................................................147
SCH22_BLUETOOTH ...........................................................148
SCH23_INPUT ......................................................................149
SCH24_PREOUT ..................................................................150
SCH25_FRONT_HDMI .........................................................151
SCH26_VIDEO .....................................................................152
SCH27_RC-5_MX-PORT ......................................................153
SCH28_RS232C_TRIGGER .................................................154
SCH29_CONNECT_A ...........................................................155
SCH30_CONNECT_B ..........................................................156
SCH31_MAIN DAC1 .............................................................157
SCH32_MAIN DAC2 .............................................................158
SCH33_XLR ..........................................................................159
SCH34_REGULATOR & TUNER ..........................................160
SCH35_H-DAM_AMP1 .........................................................161
SCH36_H-DAM_AMP2 .........................................................162
SCH37_H-DAM_AMP3 .........................................................163
SCH38_H-DAM_AMP4 .........................................................164
SCH39_H-DAM_AMP5 .........................................................165
SCH40_FRONT ....................................................................166
SCH41_SMPS ......................................................................167
EXPLODED VIEW
.................................................................168
PACKING VIEW
.....................................................................169
SEMICONDUCTORS
.............................................................170
1. IC's ...................................................................................170
2. FL DISPLAY .....................................................................193
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