Table of Contents
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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 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 ..............................................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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