2
PDP-LX5090H
1
2
3
4
A
B
C
D
E
F
1
2
3
4
CONTENTS
1. BASIC ITEMS FOR SERVICE...............................................................................................................................................4
1.1 PCB LOCATIONS ...........................................................................................................................................................4
1.2 JIGS LIST .......................................................................................................................................................................5
2. BLOCK DIAGRAM.................................................................................................................................................................6
2.1 OVERALL WIRING DIAGRAM (1/2) ...............................................................................................................................6
2.2 OVERALL WIRING DIAGRAM (2/2) ...............................................................................................................................8
2.3 OVERALL BLOCK DIAGRAM (MULTI BASE SECTION) .............................................................................................10
2.4 POWER SUPPLY BLOCK of MAIN ASSY ....................................................................................................................12
2.5 IO_AUDIO ASSY ..........................................................................................................................................................14
2.6 CARD ASSY .................................................................................................................................................................16
2.7 LED and IR ASSYS ......................................................................................................................................................18
3. DIAGNOSIS.........................................................................................................................................................................19
3.1 DIAGNOSIS FLOWCHART OF FAILURE ANALYSIS...................................................................................................19
3.2 DIGITAL TUNER SERVICE MENU ...............................................................................................................................35
3.3 DIAGNOSIS OF SD (SHUTDOWN)..............................................................................................................................38
4. DISASSEMBLY....................................................................................................................................................................42
4.1 FLOWCHART OF REMOVAL ORDER .........................................................................................................................42
4.2 DISASSEMBLY .............................................................................................................................................................43
5. EACH SETTING AND ADJUSTMENT ................................................................................................................................53
5.1 ADJUSTMENT REQUIRED WHEN THE UNIT IS REPAIRED OR REPLACED ..........................................................53
5.2 HOW TO UPDATE USB ................................................................................................................................................56
6. EXPLODED VIEWS AND PARTS LIST...............................................................................................................................58
6.1 PACKING SECTION .....................................................................................................................................................58
6.2 REAR SECTION ...........................................................................................................................................................60
6.3 FRONT SECTION.........................................................................................................................................................62
6.4 CHASSIS SECTION (1/2) .............................................................................................................................................64
6.5 CHASSIS SECTION (2/2) .............................................................................................................................................66
6.6 PANEL CHASSIS SECTION .........................................................................................................................................68
6.7 MULTIBASE SECTION .................................................................................................................................................70
6.8 PDP SERVICE ASSY ...................................................................................................................................................72
7. SCHEMATIC DIAGRAM ......................................................................................................................................................74
7.1 MAIN ASSY (1/24) [BOARD_IF_0 BLOCK] ..................................................................................................................74
7.2 MAIN ASSY (2/24) [BOARD_IF_1 BLOCK] ..................................................................................................................76
7.3 MAIN ASSY (3/24) [BOARD_IF_2 BLOCK] ..................................................................................................................78
7.4 MAIN ASSY (4/24) [POWER_0 BLOCK] ......................................................................................................................80
7.5 MAIN ASSY (5/24) [POWER_1 BLOCK] ......................................................................................................................82
7.6 MAIN ASSY (6/24) [POWER_2 BLOCK] ......................................................................................................................84
7.7 MAIN ASSY (7/24) [VDEC BLOCK] ..............................................................................................................................86
7.8 MAIN ASSY (8/24) [ADC BLOCK] ................................................................................................................................88
7.9 MAIN ASSY (9/24) [HDMI BLOCK]...............................................................................................................................90
7.10 MAIN ASSY (10/24) [HDMI_SW BLOCK] ...................................................................................................................92
7.11 MAIN ASSY (11/24) [DTB_T TUNER BLOCK] ...........................................................................................................94
7.12 MAIN ASSY (12/24) [COFDM BLOCK].......................................................................................................................96
7.13 MAIN ASSY (13/24) [COMMON_IF BLOCK] ..............................................................................................................98
7.14 MAIN ASSY (14/24) [VBI_SLICER BLOCK] .............................................................................................................100
7.15 MAIN ASSY (15/24) [7404_0 BLOCK] ......................................................................................................................102
7.16 MAIN ASSY (16/24) [7404_1 BLOCK] ......................................................................................................................104
7.17 MAIN ASSY (17/24) [7404_DDR BLOCK] ................................................................................................................106
7.18 MAIN ASSY (18/24) [7404_FLASH BLOCK] ............................................................................................................108
7.19 MAIN ASSY (19/24) [ARIA_0 BLOCK]......................................................................................................................110
7.20 MAIN ASSY (20/24) [ARIA_1 BLOCK]......................................................................................................................112
7.21 MAIN ASSY (21/24) [ARIA_MEMORY BLOCK] .......................................................................................................114
7.22 MAIN ASSY (22/24) [IF_UCOM BLOCK]..................................................................................................................116
7.23 MAIN ASSY (23/24) [EMMA2 BLOCK] .....................................................................................................................118
7.24 MAIN ASSY (24/24) [EMMA2_MEMORY BLOCK] ...................................................................................................120
7.25 CARD ASSY (1/7) [BOARD_IF BLOCK]...................................................................................................................122
7.26 CARD ASSY (2/7) [POWER_0 BLOCK] ...................................................................................................................124
7.27 CARD ASSY (3/7) [DVB-S BLOCK] ..........................................................................................................................126
7.28 CARD ASSY (4/7) [TS_SEL. BLOCK] ......................................................................................................................128
7.29 CARD ASSY (5/7) [CIMAX BLOCK] .........................................................................................................................130
7.30 CARD ASSY (6/7) [CI_SLOT BLOCK] ......................................................................................................................132
7.31 CARD ASSY (7/7) [PC BLOCK]................................................................................................................................134
7.32 VOLTAGES................................................................................................................................................................136
