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 Configuration 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