Contents
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. REG ASSY .........................................................................15
4. HDMI PCB ..........................................................................15
5. AV PCB ..............................................................................16
6. SPK PCB ............................................................................17
7. POWER TRANS ................................................................17
8. SMPS PCB .........................................................................18
SPECIAL MODE
......................................................................19
Special Mode Conīæguration 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 ..............................................29
4. Protection Pass Mode ........................................................53
5. CX870 / CY920 Reboot mode ............................................53
6. CX870 / CY920 Initialization mode ....................................54
Service Jigs
.............................................................................55
Procedure after Replacing the Microprocessor, etc.
..........57
Firmware Update Procedure
..................................................57
1. Updating by USB ................................................................57
2. Updating by DPMS .............................................................66
ADJUSTMENT
.........................................................................73
SURROUND MODES AND PARAMETERS
............................74
TROUBLE SHOOTING
............................................................77
1. POWER ..............................................................................77
2. Analog video ......................................................................78
3. HDMI/DVI ...........................................................................82
4. AUDIO ................................................................................84
5. Network/Bluetooth/USB .....................................................87
6. SMPS .................................................................................92
CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK
.............94
LEVEL DIAGRAM
....................................................................95
BLOCK DIAGRAM
.................................................................101
POWER DIAGRAM
................................................................102
WIRING DIAGRAM
................................................................103
PRINTED Circuit BOARDS
...................................................104
SCHEMATIC DIAGRAMS (1/30 )
..........................................109
01-HDMI SW1 .......................................................................109
02-HDMI SW2 .......................................................................110
03-NET_PHY.........................................................................111
04-BlueTooth .........................................................................112
05-CPU_LEVEL_CHG ..........................................................113
06-DIGITAL_CNT ..................................................................114
07-CPU .................................................................................115
08-Sub_CPU .........................................................................116
09-FRONT_HDMI .................................................................117
10-DSP .................................................................................. 118
11-ADV8003 .......................................................................... 119
12-ADV8003_DDR ................................................................120
13-D.SUPPLY ........................................................................121
14-HDMI_TX .........................................................................122
15-DIR_A.PLD ......................................................................123
16-V.PLD ...............................................................................124
17-MAIN_DAC ......................................................................125
18-ADV7850 ..........................................................................126
19-CX870JUNCTION ............................................................127
20-AV (1/3) ............................................................................128
21-AV (2/3) ............................................................................129
22-AV (3/3) ............................................................................130
23-AMP (1/2) .........................................................................131
24-AMP (2/2) .........................................................................132
25-SPK ..................................................................................133
26-SIDE CNT ........................................................................134
27-FRONT .............................................................................135
28-SMPS ...............................................................................136
29-REG FCNT .......................................................................137
30-FRONT CONNECTOR .....................................................138
EXPLODED VIEW
..................................................................139
PACKING VIEW
.....................................................................141
SEMICONDUCTORS
.............................................................142
1. IC's ...................................................................................142
2. FL DISPLAY .....................................................................161
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