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LC-70LE835E/RU, 836E/S, 838E

4 – 8

Mount the main PWB Ass’y on the backlight chassis and check that the EMI-prevention parts are not peeled and twisted from the access holes. (The
EMI-prevention parts, conductive nonwoven fabric gaskets, must be seen from the access holes.)

[Countermeasure]

Attach the conductive nonwoven fabric gaskets on the shielded case on the main PWB.

State where the main PWB and shielded case are assembled

5mm

Stick guscket so as not to

overlap with the bend area. (x2)

WH is to be locked securely.

GASKET short

MAIN SHIELD

Insert from the back side.

GASKET short

Access hole

Access hole

LC-70LE835E/RU, 836E/S, 838E

4 – 9

The following is a drawing mounting the main PWB Ass’y on the backlight chassis. (The parts indicated by -> are the access holes for confirmation.)

(Main PWB Ass’y => State where the shielded case and RF terminal angle are mounted on the main PWB)

LC-70LE835E/RU, 836E/S, 838E

5 – 1

LC70LE835E

Service Manual

 

The unit is set to the optimum at the time of shipment from the factory.

If any value should become improper or any adjustment is necessary due to the part replacement, make an adjustment according to the following pro-
cedure.

1. Procure the following units in order to replace the main unit.

MAIN UNIT: DKEYDF733FM58 (LC-70LE835E,RU) 

MAIN UNIT: DKEYDF733FM59 (LC-70LE836E,S) 

MAIN UNIT: DKEYDF733FM60 (LC-70LE838E) 

NOTE: [Caution when replacing IC (IC2001) in the main unit]

The above IC are Monitor microcomputer.

Before replacing the relevant part, procure the following parts in which the data have been rewritten.

NOTE: [Caution when replacing ICs (IC8401, IC3303) in the main unit]

When replacing either IC8401 or IC3302, exchange MAIN units for DKEYDF733FM58 (LC-70LE835E,RU), DKEYDF733FM59 (LC-
70LE836E,S) DKEYDF733FM60 (LC-70LE838E) .

Each part should not be individually exchanged. 

NOTE: HDMI ROM Writing

After replacing IC1504, execute “HDMI EDID WRITE” on the page 5/21.

Please execute it after checking MODEL NAME & INCH SIZE. are correct.

If MODEL NAME & INCH SIZE. are not correct, set them previously. (Refer to 2.)

The ROM data based on information of MODEL NAME & INCH SIZE.

1) Enter the process adjustment mode in TV.

2) Use the cursor keys (

/

) and CH keys (

/

) of R/C to select the item [HDMI EDID WRITE] on the page 5/21.

3) It is completed with OK displayed.

2. After replacing the LCD panel or LCD control/MAIN UNIT, check MODEL NAME in the following procedure.

1) Enter the process adjustment mode in TV.

2) Use the cursor keys (

/

) and CH keys (

/

) of R/C to select the item [MODEL NAME] on the page 21/21.

3) Verify that the Model name is displayed.

4) If the Model name doesn’t match, select the values of the Model name with the VOL keys (+/-).

5) After selection in Step 4), press the OK key, and it is completed with OK displayed.

6) Use the cursor keys (

/

) and CH keys (

/

) of R/C to select the item [PANEL_SIZE] on the page 21/21.

7) Verify that the panel size is displayed.

8) If the size doesn’t match, select the values of the panel size with the VOL keys (+/-).

9) After selection in Step 8), press the OK key, and it is completed with OK displayed.

10)After setting [MODEL NAME] [PANEL_SIZE], unplug the AC power cord and plug it back in.

3. After replacing the LCD panel or LCD control PWB, adjust the VCOM in the following procedure.

1) Enter the process adjustment mode.

2) Use the cursor keys (

/

) and CH keys (

/

) of R/C to select the item [VCOM ADJ] on the page 10/21.

3) Press the OK key to verify that the adjustment pattern is displayed.

4) Use VOL keys (+/-) of R/C to adjust the flicker in the center of the screen to minimum.

5) When the optimal state is achieved in Step 4), press the OK key to turn the pattern to OFF.

IC2001

RH-iXD241WJNJQ

Monitor microcomputer

LC-70LE835E/RU, 836E/S, 838E

5 – 2

1) Unplug the AC power cord of running TV set to force off the power.

2) While holding down the “VOL (-)” and “INPUT” keys on the set at once, plug in the AC power cord to turn on the power.

The letter “K” appears on the screen. This state is in Inspection mode.

3) Next, hold down the “VOL (-)” and “CH (

)” keys on the set at once.

Multiple lines of blue characters appearing on the screen indicate that the set is now in the adjustment Process mode.

If you fail to enter the adjustment process mode (the display is the same as normal startup), retry the procedure.

4) To exit the adjustment process mode after the adjustment is done, unplug the AC power cord to force off the power.

(When the power is turned off with the remote controller, once unplug the AC power cord and plug it in again. In this case, wait for 20 seconds or
so after unplugging.)

1. Key operation

Input mode is switched automatically when relevant adjustment is started so far as the necessary input signal is available.

CAUTION: Use due care in handling the information described here lest the users should know how to enter the adjustment process mode.

If the settings are tampered with in this mode, unrecoverable system damage may result.

CH keys (

/

)

CH (

/

)

Moving an item (line) by one (UP/DOWN)

VOL keys (+/-)

VOL (+/-) 

Changing a selected item setting (+1/-1)

Cursor (

/

)

—

Turning a page (PREVIOUS/NEXT)

Cursor (

/

)

—

Changing a selected line setting (+10/-10)

INPUT

INPUT

Input source switching (toggle switching) (TV

→EXT1→ etc...)

OK 

—

Executing a function

RETURN

—

Returning to a present page