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. SMPS ASSY
.......................................................................15
4. POWER TRANS
................................................................16
5. 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
.........................................31
4. Remote ID Setup Mode
......................................................74
5. Protection Pass Mode ........................................................75
6. CX870 / CY920 Reboot Mode
............................................75
7. CX870 / CY920 Initialization Mode
....................................76
JIG FOR SERVICING
..............................................................77
Procedure after Replacing the Microprocessor, etc.
..........79
Firmware Update Procedure
..................................................79
1. Updating by USB
................................................................79
2. Updating by DPMS
.............................................................88
ADJUSTMENT
.........................................................................95
SURROUND MODES AND PARAMETERS
............................96
TROUBLE SHOOTING
............................................................99
1. POWER
..............................................................................99
2. Analog video ....................................................................100
3. HDMI/DVI
.........................................................................102
4. AUDIO
..............................................................................104
5. Network/Bluetooth/USB
...................................................107
6. SMPS ...............................................................................112
Audio Check PASS
..............................................................114
CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK
...........115
LEVEL DIAGRAM
..................................................................116
GND DIAGRAM
.....................................................................124
POWER DIAGRAM
................................................................125
CPU DIAGRAM
......................................................................126
PRINTED WIRING BOARDS
.................................................127
SCHEMATIC DIAGRAMS (1/35 )
..........................................133
SCH01_DIGITAL CONNECT
................................................133
SCH02_DIR ADC ZONEDAC
...............................................134
SCH03_AUDIO PLD
.............................................................135
SCH04_DSP1
.......................................................................136
SCH05_DSP2
.......................................................................137
SCH06_DSP3
.......................................................................138
SCH07_DSP4
.......................................................................139
SCH08_MAIN CPU
...............................................................140
SCH09_SUB CPU
.................................................................141
SCH10_DECODER
...............................................................142
SCH11_HDMI SW1
...............................................................143
SCH12_HDMI SW2
...............................................................144
SCH13_IP SCALER
..............................................................145
SCH14_IP SCALER DDR
.....................................................146
SCH15_VIDEO PLD
.............................................................147
SCH16_HDMI RX TX
............................................................148
SCH17_HDMI SUPPLY
.........................................................149
SCH18_NETWORK
..............................................................150
SCH19_AUDIO VIDEO CONNECT
......................................151
SCH20_AUDIO VOLUME
.....................................................152
SCH21_PREOUT
..................................................................153
SCH22_VIDEO SELECTOR
.................................................154
SCH23_CONNECT
...............................................................155
SCH24_ZONEDAC ADC
.......................................................156
SCH25_MAIN DAC
...............................................................157
SCH26_FRONT HDMI USB
..................................................158
SCH27_SPEAKER
................................................................159
SCH28_REG
.........................................................................160
SCH29_FRONT
....................................................................161
SCH30_SMPS
......................................................................162
SCH31_AMP CONNECT
......................................................163
SCH32_232C PHONO
..........................................................164
SCH33_POWER AMP
...........................................................165
SCH34_CX870 CONNECT (CX870 Only)
............................166
SCH35_BT MODULE (CX870 Only)
.....................................167
EXPLODED VIEW
.................................................................168
PACKING VIEW
.....................................................................169
SEMICONDUCTORS
.............................................................170
1. IC's ...................................................................................170
2. FL DISPLAY
.....................................................................192
CONTENTS
2