TH-80BF1U, TH-80BF1W, TH-80BF1E - Panasonic TV Service Manual (repair manual). Page 31

View Panasonic TH-80BF1U / TH-80BF1W / TH-80BF1E Service Manual online

DIS-5
SECTION 2 DISASSEMBLY PROCEDURES
<80BF1>
2.5. Replacement of USB Terminal Module
 1.  Remove the screws and slide the USB Terminal Module block and then remove it from the hooks.
 2. Disconnect the connectors and remove the screws and then remove the USB Terminal Module.
2.6. Replacement of Wire (A-WIFI)
1. Remove the USB Terminal Module. (Refer to step 1 to 2 in "2.5. Replacement of USB Terminal Module")
2. Disconnect the USB connector and remove the screw and then remove the Wire (A-WIFI).
24
TH-80LFB70U/TH-80LFB70W
About the Adjustment Sheet
• When replacing the Back Cover Assy (L), be sure to
replace the Adjustment Sheet at the same time.
Caution when removing Back Cover
• When repairing in an upright position the Display, please
remove the screws while holding the Back Cover by
hand to prevent the Back Cover from falling down.
Caution when attaching Back Cover
• After attaching the Back Cover Assy (C), attach the Back
Cover Assy (L) and Back Cover Comp (R).
7.5. Replacement of H1-Board
1. Remove the WI-FI Module (Dongle).
(Refer to “7.3. Replacement of WI-FI Module (Dongle)”)
2. Remove the screws and slide  the H1-Board block and
then remove it from the hooks.
3. Disconnect the connectors and remove the screws and
then remove the H1-Board.
7.6. Replacement of Wire (A-WIFI)
1. Remove the H1-Board.
(Refer to steps 1 to 2 in “7.5. Replacement of H1-Board”)
2. Disconnect the USB connector and remove the screw
and then remove the Wire (A-WIFI).
7.7. Replacement of DS-Board
1. Disconnect the connectors and remove the screws and
then remove the Slot Block (with DS-Board).
2. Turn over the Slot Block, and remove the screws and
then remove the DS-Board.
24
TH-80LFB70U/TH-80LFB70W
About the Adjustment Sheet
• When replacing the Back Cover Assy (L), be sure to
replace the Adjustment Sheet at the same time.
Caution when removing Back Cover
• When repairing in an upright position the Display, please
remove the screws while holding the Back Cover by
hand to prevent the Back Cover from falling down.
Caution when attaching Back Cover
• After attaching the Back Cover Assy (C), attach the Back
Cover Assy (L) and Back Cover Comp (R).
7.5. Replacement of H1-Board
1. Remove the WI-FI Module (Dongle).
(Refer to “7.3. Replacement of WI-FI Module (Dongle)”)
2. Remove the screws and slide  the H1-Board block and
then remove it from the hooks.
3. Disconnect the connectors and remove the screws and
then remove the H1-Board.
7.6. Replacement of Wire (A-WIFI)
1. Remove the H1-Board.
(Refer to steps 1 to 2 in “7.5. Replacement of H1-Board”)
2. Disconnect the USB connector and remove the screw
and then remove the Wire (A-WIFI).
7.7. Replacement of DS-Board
1. Disconnect the connectors and remove the screws and
then remove the Slot Block (with DS-Board).
2. Turn over the Slot Block, and remove the screws and
then remove the DS-Board.
USB Terminal Module Block
24
TH-80LFB70U/TH-80LFB70W
About the Adjustment Sheet
• When replacing the Back Cover Assy (L), be sure to
replace the Adjustment Sheet at the same time.
Caution when removing Back Cover
• When repairing in an upright position the Display, please
remove the screws while holding the Back Cover by
hand to prevent the Back Cover from falling down.
Caution when attaching Back Cover
• After attaching the Back Cover Assy (C), attach the Back
Cover Assy (L) and Back Cover Comp (R).
7.5. Replacement of H1-Board
1. Remove the WI-FI Module (Dongle).
(Refer to “7.3. Replacement of WI-FI Module (Dongle)”)
2. Remove the screws and slide  the H1-Board block and
then remove it from the hooks.
3. Disconnect the connectors and remove the screws and
then remove the H1-Board.
7.6. Replacement of Wire (A-WIFI)
1. Remove the H1-Board.
(Refer to steps 1 to 2 in “7.5. Replacement of H1-Board”)
2. Disconnect the USB connector and remove the screw
and then remove the Wire (A-WIFI).
7.7. Replacement of DS-Board
1. Disconnect the connectors and remove the screws and
then remove the Slot Block (with DS-Board).
2. Turn over the Slot Block, and remove the screws and
then remove the DS-Board.
24
TH-80LFB70U/TH-80LFB70W
About the Adjustment Sheet
• When replacing the Back Cover Assy (L), be sure to
replace the Adjustment Sheet at the same time.
Caution when removing Back Cover
• When repairing in an upright position the Display, please
remove the screws while holding the Back Cover by
hand to prevent the Back Cover from falling down.
Caution when attaching Back Cover
• After attaching the Back Cover Assy (C), attach the Back
Cover Assy (L) and Back Cover Comp (R).
7.5. Replacement of H1-Board
1. Remove the WI-FI Module (Dongle).
(Refer to “7.3. Replacement of WI-FI Module (Dongle)”)
2. Remove the screws and slide  the H1-Board block and
then remove it from the hooks.
3. Disconnect the connectors and remove the screws and
then remove the H1-Board.
7.6. Replacement of Wire (A-WIFI)
1. Remove the H1-Board.
(Refer to steps 1 to 2 in “7.5. Replacement of H1-Board”)
2. Disconnect the USB connector and remove the screw
and then remove the Wire (A-WIFI).
7.7. Replacement of DS-Board
1. Disconnect the connectors and remove the screws and
then remove the Slot Block (with DS-Board).
2. Turn over the Slot Block, and remove the screws and
then remove the DS-Board.
USB Terminal Module
24
TH-80LFB70U/TH-80LFB70W
About the Adjustment Sheet
• When replacing the Back Cover Assy (L), be sure to
replace the Adjustment Sheet at the same time.
Caution when removing Back Cover
• When repairing in an upright position the Display, please
remove the screws while holding the Back Cover by
hand to prevent the Back Cover from falling down.
Caution when attaching Back Cover
• After attaching the Back Cover Assy (C), attach the Back
Cover Assy (L) and Back Cover Comp (R).
7.5. Replacement of H1-Board
1. Remove the WI-FI Module (Dongle).
(Refer to “7.3. Replacement of WI-FI Module (Dongle)”)
2. Remove the screws and slide  the H1-Board block and
then remove it from the hooks.
3. Disconnect the connectors and remove the screws and
then remove the H1-Board.
7.6. Replacement of Wire (A-WIFI)
1. Remove the H1-Board.
(Refer to steps 1 to 2 in “7.5. Replacement of H1-Board”)
2. Disconnect the USB connector and remove the screw
and then remove the Wire (A-WIFI).
7.7. Replacement of DS-Board
1. Disconnect the connectors and remove the screws and
then remove the Slot Block (with DS-Board).
2. Turn over the Slot Block, and remove the screws and
then remove the DS-Board.
24
TH-80LFB70U/TH-80LFB70W
About the Adjustment Sheet
• When replacing the Back Cover Assy (L), be sure to
replace the Adjustment Sheet at the same time.
Caution when removing Back Cover
• When repairing in an upright position the Display, please
remove the screws while holding the Back Cover by
hand to prevent the Back Cover from falling down.
Caution when attaching Back Cover
• After attaching the Back Cover Assy (C), attach the Back
Cover Assy (L) and Back Cover Comp (R).
7.5. Replacement of H1-Board
1. Remove the WI-FI Module (Dongle).
(Refer to “7.3. Replacement of WI-FI Module (Dongle)”)
2. Remove the screws and slide  the H1-Board block and
then remove it from the hooks.
3. Disconnect the connectors and remove the screws and
then remove the H1-Board.
7.6. Replacement of Wire (A-WIFI)
1. Remove the H1-Board.
(Refer to steps 1 to 2 in “7.5. Replacement of H1-Board”)
2. Disconnect the USB connector and remove the screw
and then remove the Wire (A-WIFI).
7.7. Replacement of DS-Board
1. Disconnect the connectors and remove the screws and
then remove the Slot Block (with DS-Board).
2. Turn over the Slot Block, and remove the screws and
then remove the DS-Board.
DIS-6
SECTION 2 DISASSEMBLY PROCEDURES
<80BF1>
2.7. Replacement of Function Slot Module
 1. Disconnect the connectors and remove the screws and then remove the Slot Block (with Function Slot Module).
 2. Turn over the Slot Block, and remove the screws and then remove the Function Slot Module.
About attachment of an enclosed parts
Aluminum tape included with Function Slot Module for repeir. Be sure to stick the aluminum tape when replacing Function Slot 
Module.
<Sticking specification of the aluminum tape>
24
TH-80LFB70U/TH-80LFB70W
About the Adjustment Sheet
• When replacing the Back Cover Assy (L), be sure to
replace the Adjustment Sheet at the same time.
Caution when removing Back Cover
• When repairing in an upright position the Display, please
remove the screws while holding the Back Cover by
hand to prevent the Back Cover from falling down.
Caution when attaching Back Cover
• After attaching the Back Cover Assy (C), attach the Back
Cover Assy (L) and Back Cover Comp (R).
7.5. Replacement of H1-Board
1. Remove the WI-FI Module (Dongle).
(Refer to “7.3. Replacement of WI-FI Module (Dongle)”)
2. Remove the screws and slide  the H1-Board block and
then remove it from the hooks.
3. Disconnect the connectors and remove the screws and
then remove the H1-Board.
7.6. Replacement of Wire (A-WIFI)
1. Remove the H1-Board.
(Refer to steps 1 to 2 in “7.5. Replacement of H1-Board”)
2. Disconnect the USB connector and remove the screw
and then remove the Wire (A-WIFI).
7.7. Replacement of DS-Board
1. Disconnect the connectors and remove the screws and
then remove the Slot Block (with DS-Board).
2. Turn over the Slot Block, and remove the screws and
then remove the DS-Board.
24
TH-80LFB70U/TH-80LFB70W
About the Adjustment Sheet
• When replacing the Back Cover Assy (L), be sure to
replace the Adjustment Sheet at the same time.
Caution when removing Back Cover
• When repairing in an upright position the Display, please
remove the screws while holding the Back Cover by
hand to prevent the Back Cover from falling down.
Caution when attaching Back Cover
• After attaching the Back Cover Assy (C), attach the Back
Cover Assy (L) and Back Cover Comp (R).
7.5. Replacement of H1-Board
1. Remove the WI-FI Module (Dongle).
(Refer to “7.3. Replacement of WI-FI Module (Dongle)”)
2. Remove the screws and slide  the H1-Board block and
then remove it from the hooks.
3. Disconnect the connectors and remove the screws and
then remove the H1-Board.
7.6. Replacement of Wire (A-WIFI)
1. Remove the H1-Board.
(Refer to steps 1 to 2 in “7.5. Replacement of H1-Board”)
2. Disconnect the USB connector and remove the screw
and then remove the Wire (A-WIFI).
7.7. Replacement of DS-Board
1. Disconnect the connectors and remove the screws and
then remove the Slot Block (with DS-Board).
2. Turn over the Slot Block, and remove the screws and
then remove the DS-Board.
24
TH-80LFB70U/TH-80LFB70W
About the Adjustment Sheet
• When replacing the Back Cover Assy (L), be sure to
replace the Adjustment Sheet at the same time.
Caution when removing Back Cover
• When repairing in an upright position the Display, please
remove the screws while holding the Back Cover by
hand to prevent the Back Cover from falling down.
Caution when attaching Back Cover
• After attaching the Back Cover Assy (C), attach the Back
Cover Assy (L) and Back Cover Comp (R).
7.5. Replacement of H1-Board
1. Remove the WI-FI Module (Dongle).
(Refer to “7.3. Replacement of WI-FI Module (Dongle)”)
2. Remove the screws and slide  the H1-Board block and
then remove it from the hooks.
3. Disconnect the connectors and remove the screws and
then remove the H1-Board.
7.6. Replacement of Wire (A-WIFI)
1. Remove the H1-Board.
(Refer to steps 1 to 2 in “7.5. Replacement of H1-Board”)
2. Disconnect the USB connector and remove the screw
and then remove the Wire (A-WIFI).
7.7. Replacement of DS-Board
1. Disconnect the connectors and remove the screws and
then remove the Slot Block (with DS-Board).
2. Turn over the Slot Block, and remove the screws and
then remove the DS-Board.
Function Slot Module
24
TH-80LFB70U/TH-80LFB70W
About the Adjustment Sheet
• When replacing the Back Cover Assy (L), be sure to
replace the Adjustment Sheet at the same time.
Caution when removing Back Cover
• When repairing in an upright position the Display, please
remove the screws while holding the Back Cover by
hand to prevent the Back Cover from falling down.
Caution when attaching Back Cover
• After attaching the Back Cover Assy (C), attach the Back
Cover Assy (L) and Back Cover Comp (R).
7.5. Replacement of H1-Board
1. Remove the WI-FI Module (Dongle).
(Refer to “7.3. Replacement of WI-FI Module (Dongle)”)
2. Remove the screws and slide  the H1-Board block and
then remove it from the hooks.
3. Disconnect the connectors and remove the screws and
then remove the H1-Board.
7.6. Replacement of Wire (A-WIFI)
1. Remove the H1-Board.
(Refer to steps 1 to 2 in “7.5. Replacement of H1-Board”)
2. Disconnect the USB connector and remove the screw
and then remove the Wire (A-WIFI).
7.7. Replacement of DS-Board
1. Disconnect the connectors and remove the screws and
then remove the Slot Block (with DS-Board).
2. Turn over the Slot Block, and remove the screws and
then remove the DS-Board.
25
TH-80LFB70U/TH-80LFB70W
About attachment of an enclosed parts
• Aluminum tape included with DS-Board for repair. Be sure to
stick the aluminum tape when replacing DS-Board.
<Sticking specification of the aluminum tape>
7.8. Replacement of A-Board
1. Remove the screws fixing the Terminal Bracket Assy and
A-Board and then remove the Terminal Bracket Assy.
2. Disconnect the connectors and remove the screws and
then remove the A-Board (with shield and Fan).
3. Remove the shield (with Fan) from A-Board.
DIS-7
SECTION 2 DISASSEMBLY PROCEDURES
<80BF1>
2.8. Replacement of A-Module
 1. Remove the screws fixing the Terminal Bracket Assy and A-Module and then remove the Terminal Bracket Assy.
 2. Disconnect the connectors and remove the screws and then remove the A-Module (with shield and Fan).
3. Remove the shield (with Fan) from A-Module.
25
TH-80LFB70U/TH-80LFB70W
About attachment of an enclosed parts
• Aluminum tape included with DS-Board for repair. Be sure to
stick the aluminum tape when replacing DS-Board.
<Sticking specification of the aluminum tape>
7.8. Replacement of A-Board
1. Remove the screws fixing the Terminal Bracket Assy and
A-Board and then remove the Terminal Bracket Assy.
2. Disconnect the connectors and remove the screws and
then remove the A-Board (with shield and Fan).
3. Remove the shield (with Fan) from A-Board.
25
TH-80LFB70U/TH-80LFB70W
About attachment of an enclosed parts
• Aluminum tape included with DS-Board for repair. Be sure to
stick the aluminum tape when replacing DS-Board.
<Sticking specification of the aluminum tape>
7.8. Replacement of A-Board
1. Remove the screws fixing the Terminal Bracket Assy and
A-Board and then remove the Terminal Bracket Assy.
2. Disconnect the connectors and remove the screws and
then remove the A-Board (with shield and Fan).
3. Remove the shield (with Fan) from A-Board.
25
TH-80LFB70U/TH-80LFB70W
About attachment of an enclosed parts
• Aluminum tape included with DS-Board for repair. Be sure to
stick the aluminum tape when replacing DS-Board.
<Sticking specification of the aluminum tape>
7.8. Replacement of A-Board
1. Remove the screws fixing the Terminal Bracket Assy and
A-Board and then remove the Terminal Bracket Assy.
2. Disconnect the connectors and remove the screws and
then remove the A-Board (with shield and Fan).
3. Remove the shield (with Fan) from A-Board.
25
TH-80LFB70U/TH-80LFB70W
About attachment of an enclosed parts
• Aluminum tape included with DS-Board for repair. Be sure to
stick the aluminum tape when replacing DS-Board.
<Sticking specification of the aluminum tape>
7.8. Replacement of A-Board
1. Remove the screws fixing the Terminal Bracket Assy and
A-Board and then remove the Terminal Bracket Assy.
2. Disconnect the connectors and remove the screws and
then remove the A-Board (with shield and Fan).
3. Remove the shield (with Fan) from A-Board.
    A-Module   
DIS-8
SECTION 2 DISASSEMBLY PROCEDURES
<80BF1>
Attention when replacing A-Board
• The shield is not attached to A-Board for repair. Please be sure to remove a shield from A-Board and reuse it.
• When attaching a shield to A-Board, please check whether it is correctly inserted in all the shield clips.
*  When the shield is not correctly inserted in all the shield clips, fitting of Terminal Bracket Assy and the hexagon screw of a 
DVI terminal worsens, and it may be unable to attach a hexagon screw.
Caution when replacing A-Board
• When replacing the A-Board, please be sure to restick a Heat Sheet on the original position.
26
TH-50LFB70U/TH-50LFB70W
7.7. Replacement of A-Board
1. Remove the screws fixing the HX PCB Fixing Metal and
A-Board and then remove the HX PCB Fixing Metal.
2. Disconnect the connectors and remove the screws and
then remove the A-Board (with shield and Fan).
3. Remove the shield (with Fan) from A-Board.
Attention when replacing A-Board
• The shield is not attached to A-Board for repair.
Please be sure to remove a shield from A-Board and reuse
it.
• When attaching a shield to A-Board, please check whether it
is correctly inserted in all the shield clips.
* When the shield is not correctly inserted in all the shield
clips, fitting of HX PCB Fixing Metal and the hexagon screw
of a DVI terminal worsens, and it may be unable to attach a
hexagon screw.
Caution when replacing A-Board
• When replacing the A-Board, please be sure to restick a
Heat Sheet on the original position.
26
TH-50LFB70U/TH-50LFB70W
7.7. Replacement of A-Board
1. Remove the screws fixing the HX PCB Fixing Metal and
A-Board and then remove the HX PCB Fixing Metal.
2. Disconnect the connectors and remove the screws and
then remove the A-Board (with shield and Fan).
3. Remove the shield (with Fan) from A-Board.
Attention when replacing A-Board
• The shield is not attached to A-Board for repair.
Please be sure to remove a shield from A-Board and reuse
it.
• When attaching a shield to A-Board, please check whether it
is correctly inserted in all the shield clips.
* When the shield is not correctly inserted in all the shield
clips, fitting of HX PCB Fixing Metal and the hexagon screw
of a DVI terminal worsens, and it may be unable to attach a
hexagon screw.
Caution when replacing A-Board
• When replacing the A-Board, please be sure to restick a
Heat Sheet on the original position.
DIS-9
SECTION 2 DISASSEMBLY PROCEDURES
<80BF1>
• Please stick PET+AL-tape and Aluminum tape on the position of the following figure after attaching a shieid to A-Board.
26
TH-80LFB70U/TH-80LFB70W
Attention when replacing A-Board
• The shield is not attached to A-Board for repair.
Please be sure to remove a shield from A-Board and reuse
it.
• When attaching a shield to A-Board, please check whether it
is correctly inserted in all the shield clips.
* When the shield is not correctly inserted in all the shield
clips, fitting of Terminal Bracket Assy and the hexagon screw
of a DVI terminal worsens, and it may be unable to attach a
hexagon screw.
Caution when replacing A-Board
• When replacing the A-Board, please be sure to restick a
Heat Sheet on the original position.
• Please stick PET+AL-tape and Aluminum tape on the posi-
tion of the following figure after attaching a shield to A-
Board.
27
TH-80LFB70U/TH-80LFB70W
7.9. Replacement of Terminal 
Bracket Assy
1. Remove the screws and then remove the Terminal
Bracket Assy.
Attention when replacing Terminal Bracket Assy
• When replacing Terminal Bracket Assy, 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.
DIS-10
SECTION 2 DISASSEMBLY PROCEDURES
<80BF1>
2.9. Replacement of Terminal Bracket Assy
 1. Remove the screws and then remove the Terminal Bracket Assy.
Attention when replacing Terminal Bracket Assy
When replacing Terminal Bracket Assy, please also replace the gaskets at the same time.
2.10. Replacement of Terminal Module
1. Disconnect the connectors and remove the screws and then remove the Terminal Module.
25
TH-80LFB70U/TH-80LFB70W
About attachment of an enclosed parts
• Aluminum tape included with DS-Board for repair. Be sure to
stick the aluminum tape when replacing DS-Board.
<Sticking specification of the aluminum tape>
7.8. Replacement of A-Board
1. Remove the screws fixing the Terminal Bracket Assy and
A-Board and then remove the Terminal Bracket Assy.
2. Disconnect the connectors and remove the screws and
then remove the A-Board (with shield and Fan).
3. Remove the shield (with Fan) from A-Board.
25
TH-80LFB70U/TH-80LFB70W
About attachment of an enclosed parts
• Aluminum tape included with DS-Board for repair. Be sure to
stick the aluminum tape when replacing DS-Board.
<Sticking specification of the aluminum tape>
7.8. Replacement of A-Board
1. Remove the screws fixing the Terminal Bracket Assy and
A-Board and then remove the Terminal Bracket Assy.
2. Disconnect the connectors and remove the screws and
then remove the A-Board (with shield and Fan).
3. Remove the shield (with Fan) from A-Board.
27
TH-80LFB70U/TH-80LFB70W
7.9. Replacement of Terminal 
Bracket Assy
1. Remove the screws and then remove the Terminal
Bracket Assy.
Attention when replacing Terminal Bracket Assy
• When replacing Terminal Bracket Assy, 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.
27
TH-80LFB70U/TH-80LFB70W
7.9. Replacement of Terminal 
Bracket Assy
1. Remove the screws and then remove the Terminal
Bracket Assy.
Attention when replacing Terminal Bracket Assy
• When replacing Terminal Bracket Assy, 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.
27
TH-80LFB70U/TH-80LFB70W
7.9. Replacement of Terminal 
Bracket Assy
1. Remove the screws and then remove the Terminal
Bracket Assy.
Attention when replacing Terminal Bracket Assy
• When replacing Terminal Bracket Assy, 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.
   Terminal Module
DIS-11
SECTION 2 DISASSEMBLY PROCEDURES
<80BF1>
2.11. Replacement of P-Module
1. Disconnect the connectors and remove the screws and then remove the P-Board.
Caution when replacing P-Board
•  The Terminal Conductive Sheet is stuck on the P PCB Fixing Metal. Please be sure to check that the Terminal Conductive 
Sheet is stuck on the P PCB Fixing Metal before P-Board replacement.
• When the Terminal Conductive Shee is peeling off or separated, please be sure to restick the Terminal Conductive Sheet.
28
TH-80LFB70U/TH-80LFB70W
7.11. Replacement of P-Board
1. Disconnect the connectors and remove the screws and
then remove the P-Board.
Caution when replacing P-Board
• The Terminal Conductive Sheet is stuck on the P PCB Fixing
Metal.
Please be sure to check that the Terminal Conductive Sheet
is stuck on the P PCB Fixing Metal before P-Board replace-
ment.
• When the Terminal Conductive Shee is peeling off or sepa-
rated, please be sure to restick the Terminal Conductive
Sheet.
7.12. Replacement of V2-Board
1. Remove the Control Panel from hooks and then remove
the Control Panel.
2. Disconnect the connector and remove the screws and
then remove the V2-Board.
Caution when attaching Control Panel
• After mounting the Control Panel, slide it’s hooks and fix it.
7.13. Replacement of Control Panel 
Assy and Power Button
1. Remove the Control Panel Assy and V2-Board.
(Refer to “7.12. Replacement of V2-Board”)
2. Unhook the power button’s hooks (3 places) and remove
the Power Button and Spring from the Control Panel
Assy.
3. Replace the Control Panel Assy, Power Button or Spring.
28
TH-80LFB70U/TH-80LFB70W
7.11. Replacement of P-Board
1. Disconnect the connectors and remove the screws and
then remove the P-Board.
Caution when replacing P-Board
• The Terminal Conductive Sheet is stuck on the P PCB Fixing
Metal.
Please be sure to check that the Terminal Conductive Sheet
is stuck on the P PCB Fixing Metal before P-Board replace-
ment.
• When the Terminal Conductive Shee is peeling off or sepa-
rated, please be sure to restick the Terminal Conductive
Sheet.
7.12. Replacement of V2-Board
1. Remove the Control Panel from hooks and then remove
the Control Panel.
2. Disconnect the connector and remove the screws and
then remove the V2-Board.
Caution when attaching Control Panel
• After mounting the Control Panel, slide it’s hooks and fix it.
7.13. Replacement of Control Panel 
Assy and Power Button
1. Remove the Control Panel Assy and V2-Board.
(Refer to “7.12. Replacement of V2-Board”)
2. Unhook the power button’s hooks (3 places) and remove
the Power Button and Spring from the Control Panel
Assy.
3. Replace the Control Panel Assy, Power Button or Spring.
28
TH-80LFB70U/TH-80LFB70W
7.11. Replacement of P-Board
1. Disconnect the connectors and remove the screws and
then remove the P-Board.
Caution when replacing P-Board
• The Terminal Conductive Sheet is stuck on the P PCB Fixing
Metal.
Please be sure to check that the Terminal Conductive Sheet
is stuck on the P PCB Fixing Metal before P-Board replace-
ment.
• When the Terminal Conductive Shee is peeling off or sepa-
rated, please be sure to restick the Terminal Conductive
Sheet.
7.12. Replacement of V2-Board
1. Remove the Control Panel from hooks and then remove
the Control Panel.
2. Disconnect the connector and remove the screws and
then remove the V2-Board.
Caution when attaching Control Panel
• After mounting the Control Panel, slide it’s hooks and fix it.
7.13. Replacement of Control Panel 
Assy and Power Button
1. Remove the Control Panel Assy and V2-Board.
(Refer to “7.12. Replacement of V2-Board”)
2. Unhook the power button’s hooks (3 places) and remove
the Power Button and Spring from the Control Panel
Assy.
3. Replace the Control Panel Assy, Power Button or Spring.
DIS-12
SECTION 2 DISASSEMBLY PROCEDURES
<80BF1>
2.12. Replacement of Key Module
 1. Remove the Control Panel from hooks and then remove the Control Panel.
 2. Disconnect the connector and remove the screws and then remove the Key-Board.
Caution when attaching Control Panel
• After mounting the Control Panel, slide it's hooks and fix it.
2.13. Replacement of Control Assy and Power Button
 1. Remove the Control Panel Assy and Key-Board. (Refer to “2.12. Replacement of Key-Module”)
 2. Unhook the power button’s hooks (3 places) and remove the Power Button and Spring from the Control Panel Assy.
 3. Replace the Control Panel Assy, Power Button or spring.
 
        Caution 
when 
attaching 
Spring
       
   
 
 
•  Attach the spring within the limits of a dotted line en-
closure.
28
TH-80LFB70U/TH-80LFB70W
7.11. Replacement of P-Board
1. Disconnect the connectors and remove the screws and
then remove the P-Board.
Caution when replacing P-Board
• The Terminal Conductive Sheet is stuck on the P PCB Fixing
Metal.
Please be sure to check that the Terminal Conductive Sheet
is stuck on the P PCB Fixing Metal before P-Board replace-
ment.
• When the Terminal Conductive Shee is peeling off or sepa-
rated, please be sure to restick the Terminal Conductive
Sheet.
7.12. Replacement of V2-Board
1. Remove the Control Panel from hooks and then remove
the Control Panel.
2. Disconnect the connector and remove the screws and
then remove the V2-Board.
Caution when attaching Control Panel
• After mounting the Control Panel, slide it’s hooks and fix it.
7.13. Replacement of Control Panel 
Assy and Power Button
1. Remove the Control Panel Assy and V2-Board.
(Refer to “7.12. Replacement of V2-Board”)
2. Unhook the power button’s hooks (3 places) and remove
the Power Button and Spring from the Control Panel
Assy.
3. Replace the Control Panel Assy, Power Button or Spring.
28
TH-80LFB70U/TH-80LFB70W
7.11. Replacement of P-Board
1. Disconnect the connectors and remove the screws and
then remove the P-Board.
Caution when replacing P-Board
• The Terminal Conductive Sheet is stuck on the P PCB Fixing
Metal.
Please be sure to check that the Terminal Conductive Sheet
is stuck on the P PCB Fixing Metal before P-Board replace-
ment.
• When the Terminal Conductive Shee is peeling off or sepa-
rated, please be sure to restick the Terminal Conductive
Sheet.
7.12. Replacement of V2-Board
1. Remove the Control Panel from hooks and then remove
the Control Panel.
2. Disconnect the connector and remove the screws and
then remove the V2-Board.
Caution when attaching Control Panel
• After mounting the Control Panel, slide it’s hooks and fix it.
7.13. Replacement of Control Panel 
Assy and Power Button
1. Remove the Control Panel Assy and V2-Board.
(Refer to “7.12. Replacement of V2-Board”)
2. Unhook the power button’s hooks (3 places) and remove
the Power Button and Spring from the Control Panel
Assy.
3. Replace the Control Panel Assy, Power Button or Spring.
28
TH-80LFB70U/TH-80LFB70W
7.11. Replacement of P-Board
1. Disconnect the connectors and remove the screws and
then remove the P-Board.
Caution when replacing P-Board
• The Terminal Conductive Sheet is stuck on the P PCB Fixing
Metal.
Please be sure to check that the Terminal Conductive Sheet
is stuck on the P PCB Fixing Metal before P-Board replace-
ment.
• When the Terminal Conductive Shee is peeling off or sepa-
rated, please be sure to restick the Terminal Conductive
Sheet.
7.12. Replacement of V2-Board
1. Remove the Control Panel from hooks and then remove
the Control Panel.
2. Disconnect the connector and remove the screws and
then remove the V2-Board.
Caution when attaching Control Panel
• After mounting the Control Panel, slide it’s hooks and fix it.
7.13. Replacement of Control Panel 
Assy and Power Button
1. Remove the Control Panel Assy and V2-Board.
(Refer to “7.12. Replacement of V2-Board”)
2. Unhook the power button’s hooks (3 places) and remove
the Power Button and Spring from the Control Panel
Assy.
3. Replace the Control Panel Assy, Power Button or Spring.
    Key Board
28
TH-80LFB70U/TH-80LFB70W
7.11. Replacement of P-Board
1. Disconnect the connectors and remove the screws and
then remove the P-Board.
Caution when replacing P-Board
• The Terminal Conductive Sheet is stuck on the P PCB Fixing
Metal.
Please be sure to check that the Terminal Conductive Sheet
is stuck on the P PCB Fixing Metal before P-Board replace-
ment.
• When the Terminal Conductive Shee is peeling off or sepa-
rated, please be sure to restick the Terminal Conductive
Sheet.
7.12. Replacement of V2-Board
1. Remove the Control Panel from hooks and then remove
the Control Panel.
2. Disconnect the connector and remove the screws and
then remove the V2-Board.
Caution when attaching Control Panel
• After mounting the Control Panel, slide it’s hooks and fix it.
7.13. Replacement of Control Panel 
Assy and Power Button
1. Remove the Control Panel Assy and V2-Board.
(Refer to “7.12. Replacement of V2-Board”)
2. Unhook the power button’s hooks (3 places) and remove
the Power Button and Spring from the Control Panel
Assy.
3. Replace the Control Panel Assy, Power Button or Spring.
29
TH-80LFB70U/TH-80LFB70W
Caution when attaching Spring
• Attach the Spring within the limits of a dotted line enclosure.
7.14. Replacement of Inlet Assy
1. Disconnect the connector and remove the screw and then
remove the Inlet Assy.
7.15. Replacement of Speaker (L, R)
1. Push the speaker terminal hook, and pull out the speaker
lead.
2. Remove the screws and then remove the Speaker (L, R).
7.16. Replacement of Fan
1. Disconnect the Fan joint connector and remove the
screws.
2. Remove the Rubber from the Fan.
DIS-13
SECTION 2 DISASSEMBLY PROCEDURES
<80BF1>
2.14. Replacement of Inlet Assy
 1. Disconnect the connector and remove the screws and then remove the Inlet Assy.
2.15. Replacement of Speaker (L, R)
 1. Push the speaker terminal hook, and pull out the speaker lead.
 2. Remove the screws and then remove the Speaker (L,R).
28
TH-50LFB70U/TH-50LFB70W
7.11. Replacement of Control Panel 
Assy and Power Button
1. Remove the Control Panel Assy and V2-Board.
(Refer to “7.10. Replacement of V2-Board”)
2. Unhook the power button’s hooks (3 places) and remove
the Power Button and Spring from the Control Panel
Assy.
3. Replace the Control Panel Assy, Power Button or Spring.
Caution when attaching Spring
• Attach the Spring within the limits of a dotted line enclosure.
7.12. Replacement of Inlet Assy
1. Disconnect the connector and remove the screws and
then remove the Inlet Assy.
7.13. Replacement of Speaker (L, R)
1. Push the speaker terminal hook, and pull out the speaker
lead.
29
TH-80LFB70U/TH-80LFB70W
Caution when attaching Spring
• Attach the Spring within the limits of a dotted line enclosure.
7.14. Replacement of Inlet Assy
1. Disconnect the connector and remove the screw and then
remove the Inlet Assy.
7.15. Replacement of Speaker (L, R)
1. Push the speaker terminal hook, and pull out the speaker
lead.
2. Remove the screws and then remove the Speaker (L, R).
7.16. Replacement of Fan
1. Disconnect the Fan joint connector and remove the
screws.
2. Remove the Rubber from the Fan.
29
TH-80LFB70U/TH-80LFB70W
Caution when attaching Spring
• Attach the Spring within the limits of a dotted line enclosure.
7.14. Replacement of Inlet Assy
1. Disconnect the connector and remove the screw and then
remove the Inlet Assy.
7.15. Replacement of Speaker (L, R)
1. Push the speaker terminal hook, and pull out the speaker
lead.
2. Remove the screws and then remove the Speaker (L, R).
7.16. Replacement of Fan
1. Disconnect the Fan joint connector and remove the
screws.
2. Remove the Rubber from the Fan.
29
TH-80LFB70U/TH-80LFB70W
Caution when attaching Spring
• Attach the Spring within the limits of a dotted line enclosure.
7.14. Replacement of Inlet Assy
1. Disconnect the connector and remove the screw and then
remove the Inlet Assy.
7.15. Replacement of Speaker (L, R)
1. Push the speaker terminal hook, and pull out the speaker
lead.
2. Remove the screws and then remove the Speaker (L, R).
7.16. Replacement of Fan
1. Disconnect the Fan joint connector and remove the
screws.
2. Remove the Rubber from the Fan.
29
TH-80LFB70U/TH-80LFB70W
Caution when attaching Spring
• Attach the Spring within the limits of a dotted line enclosure.
7.14. Replacement of Inlet Assy
1. Disconnect the connector and remove the screw and then
remove the Inlet Assy.
7.15. Replacement of Speaker (L, R)
1. Push the speaker terminal hook, and pull out the speaker
lead.
2. Remove the screws and then remove the Speaker (L, R).
7.16. Replacement of Fan
1. Disconnect the Fan joint connector and remove the
screws.
2. Remove the Rubber from the Fan.
DIS-14
SECTION 2 DISASSEMBLY PROCEDURES
<80BF1>
2.16. Replacement of Fan
 1.  Disconnect the Fan joint connector and remove the screws.
 2. Remove the Fan Rubber from the Fan.
29
TH-80LFB70U/TH-80LFB70W
Caution when attaching Spring
• Attach the Spring within the limits of a dotted line enclosure.
7.14. Replacement of Inlet Assy
1. Disconnect the connector and remove the screw and then
remove the Inlet Assy.
7.15. Replacement of Speaker (L, R)
1. Push the speaker terminal hook, and pull out the speaker
lead.
2. Remove the screws and then remove the Speaker (L, R).
7.16. Replacement of Fan
1. Disconnect the Fan joint connector and remove the
screws.
2. Remove the Rubber from the Fan.
29
TH-80LFB70U/TH-80LFB70W
Caution when attaching Spring
• Attach the Spring within the limits of a dotted line enclosure.
7.14. Replacement of Inlet Assy
1. Disconnect the connector and remove the screw and then
remove the Inlet Assy.
7.15. Replacement of Speaker (L, R)
1. Push the speaker terminal hook, and pull out the speaker
lead.
2. Remove the screws and then remove the Speaker (L, R).
7.16. Replacement of Fan
1. Disconnect the Fan joint connector and remove the
screws.
2. Remove the Rubber from the Fan.

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