
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
Instructions for handling semi-conductors and optical unit ...7
1. Ground for Human Body......................................................7
2. Ground for Workbench ........................................................7
TECHNICAL SPECIFICATIONS.....................................................9
DIMENSION ..............................................................................10
CAUTION IN SERVICING ...........................................................11
Initializing This Unit.................................................................11
JIG FOR SERVICING ..................................................................11
DISASSEMBLY ..........................................................................12
1. FRONT PANEL ASSY............................................................14
2. RADIATOR ASSY .................................................................15
3. SMPS ASSY .........................................................................16
4. POWER TRANS....................................................................17
5. BACK PANEL ASSY..............................................................18
SPECIAL MODE.........................................................................19
Special mode setting button ..................................................19
1. Version Display Mode ........................................................20
2. Selecting the Mode for Service-related Operations...........24
PROTECTION DIAGRAM......................................................25
DIAGNOSTIC PATH DIAGRAM ............................................30
3. PANEL / REMOTE LOCK Selection Mode ............................74
4. Protection Pass Mode ........................................................75
5. CY920 Reboot Mode ..........................................................75
6. CY920 Initialization Mode ..................................................76
JIG FOR SERVICING ..................................................................77
Procedure after Replacing the Printed circuit boards............79
Procedure after Replacing the Microprocessor, etc...............79
FIRMWARE UPDATE PROCEDURE............................................80
1. Updating via USB ...............................................................80
2. Updating via DPMS ............................................................89
ADJUSTMENT...........................................................................96
SURROUND MODES AND PARAMETERS..................................97
TROUBLE SHOOTING..............................................................100
1. POWER .............................................................................100
2. Analog video....................................................................101
3. HDMI/DVI .........................................................................103
4. AUDIO ..............................................................................105
5. Network/Bluetooth/USB ..................................................108
6. SMPS ................................................................................113
Audio Check PASS .................................................................115
CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK...................116
LEVEL DIAGRAM.....................................................................117
BLOCK DIAGRAM ...................................................................125
A.AUDIO / Z2,3HPF DIAGRAM ...............................................125
DIGITAL AUDIO / NETWORK DIAGRAM .................................126
VIDEO DIAGRAM ...................................................................127
POWER DIAGRAM..................................................................128
CPU DIAGRAM.......................................................................129
PRINTED CIRCUIT BOARDS ....................................................130
SCHEMATIC DIAGRAMS (01/33).............................................135
SCH01_DIGITAL CONNECT....................................................135
SCH02_DIR ADC ZONEDAC...................................................136
SCH03_AUDIO PLD ...............................................................137
SCH04_DSP1 .........................................................................138
SCH05_DSP2 .........................................................................139
SCH06_DSP3 .........................................................................140
SCH07_DSP4 .........................................................................141
SCH08_MAIN CPU.................................................................142
SCH09_SUB CPU....................................................................143
SCH10_DECODER..................................................................144
SCH11_HDMI SW1 ................................................................145
SCH12_HDMI SW2 ................................................................146
SCH13_IP SCALER..................................................................147
SCH14_IP SCALER DDR .........................................................148
SCH15_VIDEO PLD ................................................................149
SCH16_HDMI RX TX ..............................................................150
SCH17_HDMI SUPPLY ...........................................................151
SCH18_NETWOR ...................................................................152
SCH19_AUDIO VIDEO CONNECT...........................................153
SCH20_AUDIO VOLUME........................................................154
SCH21_PREOUT.....................................................................155
SCH22_VIDEO SELECTOR ......................................................156
SCH23_CONNECT..................................................................157
SCH24_ZONEDAC ADC .........................................................158
SCH25_MAIN DAC.................................................................159
SCH26_FRONT HDMI USB .....................................................160
SCH27_SPEAKER ...................................................................161
SCH28_REG ...........................................................................162
SCH29_FRONT.......................................................................163
SCH30_SMPS.........................................................................164
SCH31_AMP CONNECT .........................................................165
SCH32_232C PHONO ............................................................166
SCH33_POWER AMP .............................................................167
EXPLODED VIEW ....................................................................168
PACKING VIEW .......................................................................169
SEMICONDUCTORS ................................................................170
1. IC's....................................................................................170
2. FL DISPLAY ......................................................................192
CONTENTS
2