TH-80LFB70E 1 Safety Precautions 1.1. General Guidelines 1. When conducting repairs and servicing, do not attempt to modify the equipment, its parts or its materials. 2. When wiring units (with cables, flexible cables or lead wires) are supplied as repair parts and only one wire or some of the wires have been broken or disconnected, do not attempt to repair or re-wire the units.
TH-80LFB70E 2 Warning 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensi- tive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec- trostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor “chip”...
TH-80LFB70E 2.2. About lead free solder (PbF) Note: Lead is listed as (Pb) in the periodic table of elements. In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder. The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).
TH-80LFB70E 3 Service Navigation 3.1. Service Hint Board Name Function P-Board Power supply Non serviceable. P-Board should be exchanged for service. A-Board Digital Signal Processor DS-Board Slot Interface HX-Board Speaker Terminal, PC OUT/RS232C H1-Board USB Terminal V1-Board Power LED Remote Receiver, C.A.T.S. Sensor...
TH-80LFB70E 4 Specifications Power Source 220 - 240 V AC, 50/60Hz Power Consumption Power on 350 W Stand-by condition 0.5 W Power off condition 0.3 W LCD Display panel 80-inch VA panel (LED backlight), 16:9 aspect ratio 1,771 mm (W) 996 mm (H) 2,032 mm (diagonal) Screen size 2,073,600 (1,920 (W) ...
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TH-80LFB70E Notes: • Design and specifications are subject to change without notice. Mass and dimensions shown are approximate. • This equipment complies with the EMC standards listed below. EN55022, EN55024, EN61000-3-2, EN61000-3-3.
TH-80LFB70E 5 Service Mode 5.1. CAT (Computer Aided Test) mode How to access the CAT mode. Method A Main unit + remote control operation Press and hold the button on the right side of the unit and press the RECALL button on the remote control 3 times quickly within 2 second, this will place the unit into the CAT mode.
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TH-80LFB70E 5.1.2. CD mode Select the CD mode by Up/Down button on the remote control at the front page of CAT mode and then press the Mute button on the remote control more than 3 seconds. Memory data change To exit the CD mode, press the R button on the remote control.
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TH-80LFB70E 5.1.3. SD mode Select the SD mode by Up/Down button on the remote control at the front page of CAT mode and then press the Action button on the remote control. To exit the SD mode, press the R button on the remote control.
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TH-80LFB70E 5.1.5. NW mode Note : To use the network function, set each "Network Setup" setting and make sure to set the "Control I/F Select" to "LAN" or “RS232C”. Select the NW mode by Up/Down button on the remote control at the front page of CAT mode and then press the Action button...
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TH-80LFB70E To exit the NW mode, press the R button on the remote control. 5.1.6. ID mode Select the ID mode by Up/Down button on the remote control at the front page of CAT mode and then press the Mute button on the remote control more than 3 seconds.
TH-80LFB70E 6 Troubleshooting Guide 6.1. Self Check 6.1.1. Display Indication 1. Self-check is used to automatically check the bus line controlled circuit of the LCD display. 2. To get into the Self-check mode, press the volume down button on the right side of the unit, at the same time pressing the OFF-TIMER button on the remote control, and the screen will show.
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TH-80LFB70E 6.1.2. Power LED Blinking timing chart 1. Subject Information of LED Blinking timing chart. 2. Contents When an abnormality has occurred to the unit, the protection circuit operates and resets to the stand by mode. At this time, the defective block can be identified by the number of blinks of the Power LED on the front panel of the unit.
TH-80LFB70E 6.2. No Power First check point There are following 3 states of No Power indication by power LED. 1. No lit. 2. Green is lit then turns red blinking a few seconds later. 3. Only red is lit. 6.3.
TH-80LFB70E 6.4.2. How to check when the image does not appear correctly in DIGITAL LINK • Check whether all of (A), (B), (C), and (D) are “OK” in NW mode. • Check whether "H67DLK" is "OK" in ID mode. 6.5.
TH-80LFB70E Caution when attaching WI-FI Dongle • Please attach the projection on the back side of a WI-FI 7.2. Preparations Dongle to a WI-FI Dongle attachment hole firmly. • When you exchange modules or board, in order to make it discharge from an electrolytic condenser, please wait for 1 minute after the power supply end.
TH-80LFB70E 7.6. Replacement of Wire (A-WIFI) About the Adjustment Sheet • When replacing the Back Cover Assy (L), be sure to 1. Remove the H1-Board. replace the Adjustment Sheet at the same time. (Refer to steps 1 to 2 in “7.5. Replacement of H1-Board”) Caution when removing Back Cover 2.
TH-80LFB70E 7.8. Replacement of A-Board Replacement of aluminum tape • Be sure to stick the aluminum tape when replacing DS- 1. Remove the screws fixing the Terminal Bracket Metal and Board. A-Board and then remove the Terminal Bracket Metal. <Sticking specification of the aluminum tape>...
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TH-80LFB70E Attention when replacing A-Board • Please stick PET+AL-tape and Aluminum tape on the posi- • The shield is not attached to A-Board for repair. tion of the following figure after attaching a shield to A- Please be sure to remove a shield from A-Board and reuse Board.
TH-80LFB70E Attention when replacing Terminal Bracket Metal • When replacing Terminal Bracket Metal, please also replace the gaskets at the same time. 7.10. Replacement of HX-Board 1. Disconnect the connectors and remove the screws and then remove the HX-Board. 7.9.
TH-80LFB70E 7.11. Replacement of P-Board 7.12. Replacement of V2-Board 1. Disconnect the connectors and remove the screws and 1. Remove the Control Panel from hooks and then remove then remove the P-Board. the Control Panel. 2. Disconnect the connector and remove the screws and then remove the V2-Board.
TH-80LFB70E Caution when attaching Power Button Spring 2. Remove the screws and then remove the Speaker (L, R). • Attach the Power Button Spring within the limits of a dotted line enclosure. 7.14. Replacement of AC Inlet 1. Disconnect the connector and remove the screw and then remove the Inlet Assy.
TH-80LFB70E 7.17. Replacement of LCD Panel Attention when removing LCD Panel • Please work by three or more persons. • Two persons move a LCD Panel to the stable level place in which it had a LCD Panel and which was covered with soft cloth and sponge.
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TH-80LFB70E • When replacing the LCD Panel, please replace the alumi- Attention when removing Slot Block • Remove the conductive tape and aluminum tape on the num tape and wiring tape at the same time. LCD Panel. * The specifications of sticking may change without notice and sometimes the parts may remain.
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TH-80LFB70E Caution when attaching Slot Fixing Metal and A PCB R) first and then remove the Cab Fixing Metal (T, B). Fixing Metal • Attach on the basis of mounting holes. 6. Remove the screws and then remove the VESA Metal Up and Hangar Stand Metal (L, R).
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TH-80LFB70E 8. Take out the FFC (from V1-Board) and the lead wire (from (2) With LCD Panel held, two persons need to be Touch Module) attached to the side of the LCD Panel to divided into the left and the right and raise the outside of the Cabinet.
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TH-80LFB70E Caution when attaching P PCB Fixing Metal Attention when replacing LCD Panel • The Metal must not overlap the boss of LCD Panel. (1) Attach a VESA Metal Up (with VESA Metal) to the • Tightened in order of (1-2), the other screws are free.
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TH-80LFB70E (5) Adjust corner of LCD Panel to the lower right edge of Touch Panel Fixing Metal as shown in the following figure. (6) Holding the LCD Panel, turn from right and left, hold the VESA Metal and put calmly on to the...
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TH-80LFB70E Caution about the parts stuck on the LCD Panel • After connecting the flexible cables and the LVDS cable, please stick the tapes and gasket at sticking positions of the LCD Panel. * Specification of sticking may change without notice and sometimes the parts may remain...
TH-80LFB70E 7.18. Replacement of Front Glass 1. Remove the LCD Panel from the Cabinet. (Refer to steps 1 to 9 in “7.16. Replacement of LCD Panel”) 2. Remove the screws and remove the Touch Panel Fixing Metal and then remove the Front Glass from the Cabinet.
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TH-80LFB70E Quality Criterion of sticking felt • When sticking felt, please do not stick on a Touch Panel Fixing Metal by any means. • When you stick felt, please stick not to overflow into the inner side of TP PCB Cover Metal under Front Glass.
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TH-80LFB70E Sticking position of felt • Stick the felt along with a Touch Panel Fixing Metal with the center of a Touch Panel Fixing Metal as the starting point.
TH-80LFB70E 7.19. Replacement of V1-Board, V PCB Fixing Metal, and DEC LED Panel 1. Remove the LCD Panel from the Cabinet. (Refer to steps 1 to 9 in “7.17. Replacement of LCD Panel”) 2. Remove the Front Glass from the Cabinet.
TH-80LFB70E 7.20. Replacement of Touch Module 1. Remove the LCD Panel from the Cabinet. (Refer to steps 1 to 9 in “7.17. Replacement of LCD Panel”) 2. Remove the Front Glass from the Cabinet. (Refer to step 2 in “7.18. Replacement of Front Glass”) 3.
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TH-80LFB70E Caution when attaching FFC of a Touch Module • Please insert the Touch Module FFC between Touch Modules firmly to the back of a connector. • When replacing a Touch Panel module or Touch Module FFC, please remove Adhesive tape finely and use a new one.
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TH-80LFB70E Sticking position of felt • As shown in the following figure, please stick felt on a TP PCB Cover Metal.
TH-80LFB70E 7.21. Attachment procedure of Touch Panel Filter 1. Insert the TP PCB Cover Metal in the Cabinet as shown in the following figure. 2. Insert the Touch Panel Filter between TP PCB Cover Metal and the Cabinet as shown in the following figure.
TH-80LFB70E 7.22. Replacement of Cabinet 1. Remove the LCD Panel from the Cabinet. (Refer to steps 1 to 9 in “7.17. Replacement of LCD Panel”) 2. Remove the Front Glass from the Cabinet. (Refer to step 2 in “7.18. Replacement of Front Glass”) 3.
TH-80LFB70E 7.23. Replacement of Cab Fixing Metal (T, B, L, R) and Back Cover Blind Metal (T, B, L, R) 1. Remove the Cab Fixing Metal (T, B, L, R) from the LCD Panel. (Refer to steps 1 to 7 in “7.17. Replacement of LCD Panel”)
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TH-80LFB70E Attention when replacing Cab Fixing Metal (B, L) • In the case of exchange of a Cabinet Fixing Metal (B) and (L), it is a position of the following figure about sponge / gasket / felt. • Please be alike and stick.
TH-80LFB70E 8 Block Diagram 8.1. Main Block Diagram DIGITAL SIGNAL PROCESSOR AUDIO IN HDMI1,2 VIDEO IN Touch Panel(IR) HIGH SIDE SW Digital-Link Digital-Link USB TERMINAL S3.3VLAN FLASH MEMORY HIGH SIDE SW S3.3VLAN LAN DATA VBUS S1.5VLAN HDBase-T/ DDR3 SIGMA S2.5VLAN S3.3VLAN...
TH-80LFB70E 8.2. Block (1 of 4) Diagram DIGITAL SIGNAL PROCESSOR DS SLOT INTERFACE Q3140,41 DS10 DS10 A10 BUFFER AUDIO IN L AUDIO IN L AUDIO IN R AUDIO IN R A_OA+- OE+- A_EA+- EE+- A_CLK+- A_ED+/- TX3+/- A_OE+/- TX9+/- SLOT_RXD...
TH-80LFB70E 8.3. Block (2 of 4) Diagram JK2103 JK2101 JK2104 JK2106 JK2107 JK2105 VIDEO IN PC AUDIO IN PC IN HDMI1 IN HDMI2 IN DVI IN DIGITAL SIGNAL PROCESSOR IC2701 IC2105 PULSE TRANCE HDBase T Receiver VIDEO/AUDIO SIGNAL SELECT JK2701...
TH-80LFB70E 8.4. Block (3 of 4) Diagram DIGITAL SIGNAL PROCESSOR AUDIO OUT R/L IC2114 VIDEO SW +1.5V_DDR VOUT ASIC 30bit_RGB VIDEO SIGNAL PROCESSOR IC8001 30bit_ASIC OUT +1.5V_DDR IC4001 SCX2A LVDS RECEIVER & TTL PARALLEL SCX IN A R/G/B ASIC OUT2...