Mitsubishi Electric WD 73735 Service Manual
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Page 11
![Page 11
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 11
OPTICAL ENGINE REMOVAL
OPTICAL ENGINE ASSEMBLY REMOVAL
1) Remove 3 screws (C) from the Optical Engine.
2) Disconnect all cables to the Optical Engine Assembly.
3) Carefully slide the Optical Engine assembly from the cabinet.
OPTICAL ENGINE ASSEMBLY AND CONNECTOR LOCATIONS
(Rear View)](http://img.usermanuals.tech/thumb/3285/38660/w300_Mitsubishi_Electric_WD-73735_Service_Manual-10.png "Page 11
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 11
OPTICAL ENGINE REMOVAL
OPTICAL ENGINE ASSEMBLY REMOVAL
1) Remove 3 screws (C) from the Optical Engine.
2) Disconnect all cables to the Optical Engine Assembly.
3) Carefully slide the Optical Engine assembly from the cabinet.
OPTICAL ENGINE ASSEMBLY AND CONNECTOR LOCATIONS
(Rear View)")
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \ WD-73735 /WD-73736 / WD-73835 / WD-73C8 Page 11 OPTICAL ENGINE REMOVAL OPTICAL ENGINE ASSEMBLY REMOVAL 1) Remove 3 screws (C) from the Optical Engine. 2) Disconnect all cables to the Optical Engine Assembly. 3) Carefully slide the Optical Engine assembly from the cabinet. OPTICAL ENGINE ASSEMBLY AND CONNECTOR LOCATIONS (Rear View)
Page 12
![Page 12
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 12
OPTICAL ENGINE REMOVAL FROM THE DUCT ASSEMBLY
Figure 1: Duct Assembly (Rear View) Figure 2: Duct Assembly (Top View)
Upper Duct Assembly Removal Procedure
1) Disconnect the Ballast Fan and Lamp Fan from the back of the Engine (co\
nnectors J4 and J8) and loosen
wiring harnesses from the looms, refer to page 11 for connector locations.
1) Loosen two screws ( a) to remove the Lamp...](http://img.usermanuals.tech/thumb/3285/38660/w300_Mitsubishi_Electric_WD-73735_Service_Manual-11.png "Page 12
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 12
OPTICAL ENGINE REMOVAL FROM THE DUCT ASSEMBLY
Figure 1: Duct Assembly (Rear View) Figure 2: Duct Assembly (Top View)
Upper Duct Assembly Removal Procedure
1) Disconnect the Ballast Fan and Lamp Fan from the back of the Engine (co\
nnectors J4 and J8) and loosen
wiring harnesses from the looms, refer to page 11 for connector locations.
1) Loosen two screws ( a) to remove the Lamp...")
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \ WD-73735 /WD-73736 / WD-73835 / WD-73C8 Page 12 OPTICAL ENGINE REMOVAL FROM THE DUCT ASSEMBLY Figure 1: Duct Assembly (Rear View) Figure 2: Duct Assembly (Top View) Upper Duct Assembly Removal Procedure 1) Disconnect the Ballast Fan and Lamp Fan from the back of the Engine (co\ nnectors J4 and J8) and loosen wiring harnesses from the looms, refer to page 11 for connector locations. 1) Loosen two screws ( a) to remove the Lamp...
Page 13
![Page 13
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 13
Figure 4: Lower Duct rear Mounting Screw
Figure 5: Lower Duct front Mounting Screw
LOWER DUCT REMOVAL
1) Remove the 2 screws ( C) one in front and one in the rear of the lower duct, refer to Figures 4 and 5.
2) Carefully remove the lower duct from the Engine.
ENGINE REPLACEMENT (Reverse the Removal Procedure)
1) Install Duct assembly on the new Engine.
2) Remove the Protective...](http://img.usermanuals.tech/thumb/3285/38660/w300_Mitsubishi_Electric_WD-73735_Service_Manual-12.png "Page 13
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 13
Figure 4: Lower Duct rear Mounting Screw
Figure 5: Lower Duct front Mounting Screw
LOWER DUCT REMOVAL
1) Remove the 2 screws ( C) one in front and one in the rear of the lower duct, refer to Figures 4 and 5.
2) Carefully remove the lower duct from the Engine.
ENGINE REPLACEMENT (Reverse the Removal Procedure)
1) Install Duct assembly on the new Engine.
2) Remove the Protective...")
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \ WD-73735 /WD-73736 / WD-73835 / WD-73C8 Page 13 Figure 4: Lower Duct rear Mounting Screw Figure 5: Lower Duct front Mounting Screw LOWER DUCT REMOVAL 1) Remove the 2 screws ( C) one in front and one in the rear of the lower duct, refer to Figures 4 and 5. 2) Carefully remove the lower duct from the Engine. ENGINE REPLACEMENT (Reverse the Removal Procedure) 1) Install Duct assembly on the new Engine. 2) Remove the Protective...
Page 14
![Page 14
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 14
BALLAST ASSEMBLY REMOVAL
REMOVAL PROCEDURE
1) Remove screw (A) from the Ballast support
and screw (B) if the Engine is still mounted
in the cabinet.
2) Slide the Ballast Assembly out the rear of the Engine assembly and unplug the Lamp
connector (C) at the Ballast.
3) Disconnect connectors CJ1 and CJ3.
4) Remove screw (D) to remove the PWB- BALLAST from the Ballast Support.
Reverse...](http://img.usermanuals.tech/thumb/3285/38660/w300_Mitsubishi_Electric_WD-73735_Service_Manual-13.png "Page 14
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 14
BALLAST ASSEMBLY REMOVAL
REMOVAL PROCEDURE
1) Remove screw (A) from the Ballast support
and screw (B) if the Engine is still mounted
in the cabinet.
2) Slide the Ballast Assembly out the rear of the Engine assembly and unplug the Lamp
connector (C) at the Ballast.
3) Disconnect connectors CJ1 and CJ3.
4) Remove screw (D) to remove the PWB- BALLAST from the Ballast Support.
Reverse...")
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \ WD-73735 /WD-73736 / WD-73835 / WD-73C8 Page 14 BALLAST ASSEMBLY REMOVAL REMOVAL PROCEDURE 1) Remove screw (A) from the Ballast support and screw (B) if the Engine is still mounted in the cabinet. 2) Slide the Ballast Assembly out the rear of the Engine assembly and unplug the Lamp connector (C) at the Ballast. 3) Disconnect connectors CJ1 and CJ3. 4) Remove screw (D) to remove the PWB- BALLAST from the Ballast Support. Reverse...
Page 15
![Page 15
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 15
65 inch Models
SCREEN REPLACEMENT (continued)
73 inch Models](http://img.usermanuals.tech/thumb/3285/38660/w300_Mitsubishi_Electric_WD-73735_Service_Manual-14.png "Page 15
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 15
65 inch Models
SCREEN REPLACEMENT (continued)
73 inch Models")
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \ WD-73735 /WD-73736 / WD-73835 / WD-73C8 Page 15 65 inch Models SCREEN REPLACEMENT (continued) 73 inch Models
Page 16
![Page 16
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 16
SCREEN REPLACEMENT (continued)
Screen Assembly Removal
(continued)
2) Open the Control Panel door and remove two screws (A).
3) Remove the remaining rear screw in the upper corner and carefully pull t\
he screen assembly
from the cabinet.
Screen Removal From the BEZEL-FRONT
1) Remove the screws (A) from the top, bottom and side rails.
2) Lift the Fresnel Lens and Lenticular screen...](http://img.usermanuals.tech/thumb/3285/38660/w300_Mitsubishi_Electric_WD-73735_Service_Manual-15.png "Page 16
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 16
SCREEN REPLACEMENT (continued)
Screen Assembly Removal
(continued)
2) Open the Control Panel door and remove two screws (A).
3) Remove the remaining rear screw in the upper corner and carefully pull t\
he screen assembly
from the cabinet.
Screen Removal From the BEZEL-FRONT
1) Remove the screws (A) from the top, bottom and side rails.
2) Lift the Fresnel Lens and Lenticular screen...")
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \ WD-73735 /WD-73736 / WD-73835 / WD-73C8 Page 16 SCREEN REPLACEMENT (continued) Screen Assembly Removal (continued) 2) Open the Control Panel door and remove two screws (A). 3) Remove the remaining rear screw in the upper corner and carefully pull t\ he screen assembly from the cabinet. Screen Removal From the BEZEL-FRONT 1) Remove the screws (A) from the top, bottom and side rails. 2) Lift the Fresnel Lens and Lenticular screen...
Page 17
![Page 17
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 17
SCREEN REPLACEMENT (continued)](http://img.usermanuals.tech/thumb/3285/38660/w300_Mitsubishi_Electric_WD-73735_Service_Manual-16.png "Page 17
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 17
SCREEN REPLACEMENT (continued)")
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \ WD-73735 /WD-73736 / WD-73835 / WD-73C8 Page 17 SCREEN REPLACEMENT (continued)
Page 18
![Page 18
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 18
Screen Replacement
CAUTION:Wear gloves when handling the Lenticular Screen and Fresnel Lens.
This prevents cuts and finger prints. Do not place Fresnel Lens in the sun .
This may cause fire and heat related injuries.
Lenticular Screen and Fresnel Lens Replacement
1) Apply LENS-TAPE along the rear top edge of the Lenticular Screen.
2) Place the Fresnel Lens on top of the Lenticular...](http://img.usermanuals.tech/thumb/3285/38660/w300_Mitsubishi_Electric_WD-73735_Service_Manual-17.png "Page 18
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 18
Screen Replacement
CAUTION:Wear gloves when handling the Lenticular Screen and Fresnel Lens.
This prevents cuts and finger prints. Do not place Fresnel Lens in the sun .
This may cause fire and heat related injuries.
Lenticular Screen and Fresnel Lens Replacement
1) Apply LENS-TAPE along the rear top edge of the Lenticular Screen.
2) Place the Fresnel Lens on top of the Lenticular...")
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \ WD-73735 /WD-73736 / WD-73835 / WD-73C8 Page 18 Screen Replacement CAUTION:Wear gloves when handling the Lenticular Screen and Fresnel Lens. This prevents cuts and finger prints. Do not place Fresnel Lens in the sun . This may cause fire and heat related injuries. Lenticular Screen and Fresnel Lens Replacement 1) Apply LENS-TAPE along the rear top edge of the Lenticular Screen. 2) Place the Fresnel Lens on top of the Lenticular...
Page 19
![Page 19
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 19
Speaker Replacement
1) Remove the Bezel screen assembly to access the speakers.
2) Remove 2 screws (A) and carefully slide the Speaker Assembly from the cabinet.
3) Disconnect the leads to the speaker.
4) Remove 4 screws (B) to remove the speaker from the speaker cover.
5) Reverse the procedure to install a replacement speaker.
WD-65835 & WD-73835 (Only)
PWB-SBL-R & PWB-SBL-L...](http://img.usermanuals.tech/thumb/3285/38660/w300_Mitsubishi_Electric_WD-73735_Service_Manual-18.png "Page 19
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
Page 19
Speaker Replacement
1) Remove the Bezel screen assembly to access the speakers.
2) Remove 2 screws (A) and carefully slide the Speaker Assembly from the cabinet.
3) Disconnect the leads to the speaker.
4) Remove 4 screws (B) to remove the speaker from the speaker cover.
5) Reverse the procedure to install a replacement speaker.
WD-65835 & WD-73835 (Only)
PWB-SBL-R & PWB-SBL-L...")
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \ WD-73735 /WD-73736 / WD-73835 / WD-73C8 Page 19 Speaker Replacement 1) Remove the Bezel screen assembly to access the speakers. 2) Remove 2 screws (A) and carefully slide the Speaker Assembly from the cabinet. 3) Disconnect the leads to the speaker. 4) Remove 4 screws (B) to remove the speaker from the speaker cover. 5) Reverse the procedure to install a replacement speaker. WD-65835 & WD-73835 (Only) PWB-SBL-R & PWB-SBL-L...
Page 20
![Page 20
Page 20
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
OPTION MENU
1. Press the “MENU” button on the remote hand unit.
2. Press the buttons “2”, “4”, “7” and “0” in or\
der.
(The screen will change to the option menu.)
REMOTE CONTROL
Digital Signal Strength
1. Tune to a Digital Channel
2. From the Option menu scroll down and highlight Digital Signal Strength
3. Press Enter
SNR Recommended Levels: VSB = 15 to 35
64 QAM = 22 to 34
256...](http://img.usermanuals.tech/thumb/3285/38660/w300_Mitsubishi_Electric_WD-73735_Service_Manual-19.png "Page 20
Page 20
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
OPTION MENU
1. Press the “MENU” button on the remote hand unit.
2. Press the buttons “2”, “4”, “7” and “0” in or\
der.
(The screen will change to the option menu.)
REMOTE CONTROL
Digital Signal Strength
1. Tune to a Digital Channel
2. From the Option menu scroll down and highlight Digital Signal Strength
3. Press Enter
SNR Recommended Levels: VSB = 15 to 35
64 QAM = 22 to 34
256...")
Page 20
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / \
WD-73735 /WD-73736 / WD-73835 / WD-73C8
OPTION MENU
1. Press the “MENU” button on the remote hand unit.
2. Press the buttons “2”, “4”, “7” and “0” in or\
der.
(The screen will change to the option menu.)
REMOTE CONTROL
Digital Signal Strength
1. Tune to a Digital Channel
2. From the Option menu scroll down and highlight Digital Signal Strength
3. Press Enter
SNR Recommended Levels: VSB = 15 to 35
64 QAM = 22 to 34
256...