In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.
[3] Precautions for assembly............................... 4-8
Parts marked with "" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the
safety and performance of the set.
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
LC-70LE835E/RU, 836E/S, 838E
LC70LE835E
SAFETY PRECAUTION
Service Manual
IMPORTANT SERVICE SAFETY PRECAUTION
Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the
servicing guidelines which follow:
WARNING
1. For continued safety, no modification of any circuit should be
attempted.
2. Disconnect AC power before servicing.
CAUTION:
FOR CONTINUED PROTECTION AGAINST A
RISK OF FIRE REPLACE ONLY WITH SAME
TYPE FUSE.
• Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity or measure the AC voltage drop across the resistor.
• Connect the resistor connection to all exposed metal parts having a
return to the chassis (antenna, metal cabinet, screw heads, knobs
and control shafts, escutcheon, etc.) and measure the AC voltage
drop across the resistor.
All checks must be repeated with the AC cord plug connection
reversed. (If necessary, a nonpolarized adaptor plug must be used
only for the purpose of completing these checks.)
Any reading of 1.05 V peak (this corresponds to 0.7 mA peak AC.)
or more is excessive and indicates a potential shock hazard which
must be corrected before returning the monitor to the owner.
F7001 (5A/250V)
DVM
BEFORE RETURNING THE RECEIVER
(Fire & Shock Hazard)
Before returning the receiver to the user, perform the following
safety checks:
3. Inspect all lead dress to make certain that leads are not pinched,
and check that hardware is not lodged between the chassis and
other metal parts in the receiver.
4. Inspect all protective devices such as non-metallic control knobs,
insulation materials, cabinet backs, adjustment and compartment
covers or shields, isolation resistor-capacitor networks, mechanical
insulators, etc.
5. To be sure that no shock hazard exists, check for leakage current
in the following manner.
• Plug the AC cord directly into a 220~240 volt AC outlet.
• Using two clip leads, connect a 1.5k ohm, 10 watt resistor paralleled by a 0.15µF capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as electrical conduit or electrical ground connected to an earth ground.
Many electrical and mechanical parts in LCD color television have
special safety-related characteristics.
These characteristics are often not evident from visual inspection, nor
can protection afforded by them be necessarily increased by using
replacement components rated for higher voltage, wattage, etc.
Replacement parts which have these special safety characteristics are
identified in this manual; electrical components having such features
are identified by “” and shaded areas in the Replacement Parts
List and Schematic Diagrams.
For continued protection, replacement parts must be identical to those
used in the original circuit.
The use of a substitute replacement parts which do not have the same
safety characteristics as the factory recommended replacement parts
shown in this service manual, may create shock, fire or other hazards.
AC SCALE
1.5k ohm
10W
0.15µF
TEST PROBE
CONNECT TO
KNOWN EARTH
GROUND
i
LC-70LE835E/RU, 836E/S, 838E
Precautions for using lead-free solder
Employing lead-free solder
• “PWBs” of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The
alphabetical character following LF shows the type of lead-free solder.
Example:
L Fa
Indicates lead-free solder of tin, silver and copper.
Indicates lead-free solder of tin, silver and copper.
L F a/a
Using lead-free wire solder
• When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 °C, we recommend you to use a dedicated soldering
bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station or service branch in your area.
Soldering
• As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 °C which is higher than the conventional lead solder by 40 °C, and as it has poor
solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of time. However, Since the land may be
peeled off or the maximum heat-resistance temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the
steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to turn on and off the power of the bit as
required.
If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.
• Be careful when replacing parts with polarity indication on the PWB silk.
NDKEYDF733FM58MAIN Unit (LC-70LE835E/RU) (*1)
NDKEYDF733FM59MAIN Unit (LC-70LE836E/S) (*1)
NDKEYDF733FM60MAIN Unit (LC-70LE838E) (*1)
NDUNTKF494FM02R/C, OPC Unit
NDUNTKF770FM51ICON Unit
NDUNTKF800FM52KEY Unit
NRUNTKA819WJQZ3D IR TRANSMITTER Unit
NRDENCA451WJQZPOWER Unit
NDUNTKF906FM55LCD CONTROL Unit
NRUNTKA961WJZZLED DRIVER Unit
NOTE: (*1) Replace MAIN PWB Unit (DKEYDF733FM**) in case of IC8401 or IC3303 failure.
OTHER Unit
Ref No.Parts No.Description
NR1LK695D3GW2AX70" LCD Panel Module Unit (LK695D3GW2AX)
NQCNW-L795WJQZMain Unit to Power Unit (PD)1
NQCNW-L519WJQZPOWER Unit to LED DRIVER Unit (LA)1
NQCNW-L796WJQZMain Unit to ICON Unit (CI)1
NQCNW-K595WJQZMain Unit to Speaker (SP)1
NQCNW-G405WJQZMain Unit to LCD Control Unit (PL)1
NQCNW-F676WJQZMAIN Unit to LCD CONTROL Unit (LW)1
NQCNW-C222WJQZLCD Control Unit to LCD Panel Unit, x22
iv
LC-70LE835E/RU, 836E/S, 838E
LC70LE835E
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS (LC-70LE835/836)
Service Manual
1 – 1
[2] SPECIFICATIONS (LC-70LE838)
LC-70LE835E/RU, 836E/S, 838E
1 – 2
LC-70LE835E/RU, 836E/S, 838E
LC70LE835E
CHAPTER 2. OPERATION MANUAL
[1] Parts Name
Service Manual
2 – 1
LC-70LE835E/RU, 836E/S, 838E
2 – 2
LC-70LE835E/RU, 836E/S, 838E
• LC-70LE835E/RU,836E/S
2 – 3
LC-70LE835E/RU, 836E/S, 838E
2 – 4
LC-70LE835E/RU, 836E/S, 838E
• LC-70LE838E
2 – 5
LC-70LE835E/RU, 836E/S, 838E
2 – 6
LC-70LE835E/RU, 836E/S, 838E
[2] OPERATION MANUAL
2 – 7
LC70LE835E
CHAPTER 3. DIMENSIONS
[1] DIMENSIONS
LC-70LE835E/RU, 836E/S, 838E
Service Manual
Unit: mm
3 – 1
LC-70LE835E/RU, 836E/S, 838E
LC70LE835E
CHAPTER 4. REMOVING OF MAJOR PARTS
Service Manual
[1] REMOVING OF MAJOR PARTS
1. Removing of Stand Unit and Rear Cabinet Ass’y.
1. Remove the 4 lock screws and detach the Stand Unit .
2. Remove the 1 lock screw and detach the AC Cord Cover .
3. Disconnect AC wire and detach the AC Cord .
4. Remove the 4 VESA Hole Covers , 9 lock screws and 21 lock screws and detach the Rear Cabinet Ass’y .
3
VESA Hole Cover
2Stand Unit
4AC Cord Cover
5
AC Cord
[AC]
6
7
1
8
[AC]
Rear Cabinet Ass'y
9
[Precautions when mounting and removing the rear cabinet]
Basically, there is no problem as in LC-60LE632U. However, the screws on both sides are not tightened together with the Rear Cabinet Ass’y.
The inside is fixed by the module and Speaker.
Therefore, it does not come away completely, but only one side can come off.
Tighten together with the
Rear Cabinet Ass'y.
Fix with the 70" LCD Panel Module Unit.
Only one side (outer) can come off.
4 – 1
[Precautions for assembly]
Push
Push
Push
Push
Push
Push
Push
Push
CAUTION
Set it so that there may not be a clearance between Front Cabinet Ass'y and Rear Cabinet Ass'y.
19
places
LC-70LE835E/RU, 836E/S, 838E
There is a gap without the fingernail fitting
in completely only when covering with Rear Cabinet Ass'y.
The fingernail is surely fixed when Rear cabinet Ass'y is
firmly pushed, and the gap disappears.
4 – 2
LC-70LE835E/RU, 836E/S, 838E
2. Removing of Speaker (L/R) and KEY Unit.
1. Disconnect the SP wire.
2. Remove the 2 lock screws and detach the Speaker (L) , Speaker (R) .
3. Disconnect the RC wire.
4. Detach the KEY Unit Ass’y .
5. Disconnect the KM wire.
6. Remove the 2 lock screws and detach the Key Button from Key Button Cover .
7. Detach the KEY Unit from Key Button .
MAIN Unit
KEY Unit Ass'y
KEY Unit
Key Button
Cover
7
8
[KM]
Key Button
4
[SP]
5
[RC]
6
[SP]
2Speaker (L)3Speaker (R)
11
4 – 3
3. Removing of Connectors
1. Disconnect the following connectors from the MAIN Unit. (PD, LV, PL, Cl)
2. Disconnect the following connectors from the POWER Unit.(PD, LA)
3. Disconnect the following connectors from the LED DRIVER Unit. (L1, L2, LA)
LC-70LE835E/RU, 836E/S, 838E
LED DRIVER Unit
[L1/L2]
[L2]
[L1]
[LA]
[PD]
[LA]
MAIN Unit
MAIN UnitPOWER Unit
[PD]
[LV]
[PL]
[CI]
4 – 4
LC-70LE835E/RU, 836E/S, 838E
4. Removing of 70” LCD Panel Module Unit, LCD CONTROL Unit, MAIN Unit, POWER Unit.
1. Detach the 14 Fixing Metal Angle Ass’ys .
2. Remove the 12 Hooks and detach the 70” LCD Panel Module Unit .
3. Remove the 4 Hooks and detach the 2 Bottom Covers .
4. Remove the 4 lock screws and detach the Shield Ass’y (LCD CONTROL Unit) .
5. Disconnect the LW and PL wire.
6. Remove the 2 Connecting Cords , 2 Ferrite Cores , 6 lock screws and detach the LCD CONTROL Unit .
7. Remove the 5 lock screws and detach the Shield (MAIN Unit) .
8. Remove the 2 lock screws and detach the MAIN Unit and Terminal Angle (Bottom) and Spring .
9. Remove the 6 lock screws and detach the POWER Unit .
10.Remove the 12 lock screws and detach the 2 Stand Angles .
11.Remove the 16 lock screws and detach the 4 VESA Angle Ass’ys .
Fixing Metal Angle Ass'y
1Fixing Metal
Angle Ass'y
Hook
16
Shield (MAIN Unit)
12
11
15Terminal Angle
(Bottom)
13
17Power Unit
MAIN Unit
1
1
14
Fixing Metal
Angle Ass'y
22
Hook
Spring
1 Fixing Metal
Angle Ass'y
10LCD CONTROL
Unit
9
Shield Ass'y
6
(LCD CONTROL Unit)
2
70" LCD Panel
Module Unit
VESA
Angle Ass'y
Angle
Hook
Hook
21
VESA
Angle Ass'y
20
21
20
19 Stand
18
4 Bottom Cover
Hook
20
[PL]
[LW]
VESA
21
Angle Ass'y
8Ferrite Core
19Stand
7Connecting Cord
Angle
Bottom
Cover
4
Hook
20
18
5
4 – 5
5. Removing of R/C OPC Unit, ICON Unit, WiFi Unit.
1. Detach the R/C OPC Unit .
2. Disconnect the RC wire.
3. Remove the 1 lock screw and detach the ICON Unit .
4. Disconnect the CI wire.
Front Cabinet Ass'y
LC-70LE835E/RU, 836E/S, 838E
1R/C OPC Unit
[RC]
[CI]
3ICON Unit
2
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LC-70LE835E/RU, 836E/S, 838E
[2] The location putting on the heat measure sheet
1. MAIN PWB Unit
2. BACK LIGHT CHASSIS
ATTENTION
Do not push strongly.
(Transformation prevention of holder)
PSPAGA963WJZZ
SPACER
Base = Card holder edge
Over to the right side is NG.
Base=
Base =
Cardholderedge
Card holder edge
15mm side
PSPAZC782WJKZ
C-PWB Cooler
25
15
Stick the sheet along carved line.
(COOLING-SHEET sticks to IC5801. )
20
Sticky side is a panel side.
PSPAZC850WJKZ
MAIN Cooling Sheet
Don't push.(panel holder)
Stick the COOLING-SHEET to panel holder
(COOLING-SHEET sticks to IC3303. )
20
11
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LC-70LE835E/RU, 836E/S, 838E
[3] Precautions for assembly
1. Points to be checked and precautions when servicing the unit
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.
WH is to be locked securely.
MAIN SHIELD
GASKET short
Base = Bend line
Base = Cut line
(Fit to edge)
PMLT-A676WJZZ
GASCKET
5mm
PCLICA004WJKZ
for GASKET
Turn
GASKET short
Insert from the back side.
Tape side
Gascket
side
Stick guscket so as not to
overlap with the bend area. (x2)
PMLT-A695WJZZ
GASKET
State where the main PWB and shielded case are assembled
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)
4 – 9
LC-70LE835E/RU, 836E/S, 838E
LC70LE835E
CHAPTER 5. ADJUSTMENT
Service Manual
[1] ADJUSTMENT PROCEDURE
1. Adjustment method after PWB and/or IC replacement due to repair
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 procedure.
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.
IC2001RH-iXD241WJNJQMonitor microcomputer
NOTE: [Caution when replacing ICs (IC8401, IC3303) in the main unit]
When replacing either IC8401 or IC3303, exchange MAIN units for DKEYDF733FM58 (LC-70LE835E,RU), DKEYDF733FM59 (LC70LE836E,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.
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LC-70LE835E/RU, 836E/S, 838E
2. Entering and exiting the adjustment process mode
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.)
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.
3. Remote controller key operation and description of display in adjustment process mode
1. Key operation
Remote controller keyMain unit keyRemote controller key Main unit key Function
3)xxxxxx 4)xxxxxx
NORMAL STANDBY CAUSE
ERROR STANDBY CAUSE
(6) Item name(7) Parameter
No.DescriptionDisplay specification
(1)Present page/number of total pages 2char/2char Decimal Number mark.
(2)Input that has been selected now TUNER/DTV/INPUT1/INPUT2/INPUT3/INPUT5/INPUT6/INPUT7/etc. ⋅⋅⋅
(3)Present colour systemAUTO/N358/N443/PAL/SECAM/480i/580i/1080i/50 etc. ⋅⋅⋅
(4)Inducing displayEUROPE/RUSSIA/SWEDEN
(5)Inch setting and Model name display Inch setting and Model name display
(6)Item nameMax. 30 char
(7)ParameterMax. 60 char
0
0000
5 – 3
LC-70LE835E/RU, 836E/S, 838E
5. List of adjustment process mode menu
The character string in brackets [ ] will appear as a page title in the adjustment process menu header.
1MAIN Version1xxx (xxxxx)Main software version
2BOOT VersionxxxxxxxBOOT Version.
3Monitor VersionxxxxxxxMonitor software version
4T-CON Version/LED CON Versionxxxxxxxx/xxxxT-CON/LED CON Version
5NET TV KEY/MACxxxxxxxNET TV KEY/MAC Address
6CI+INFO/SECURE BOOTxxxxx/YESCI+ Key Information/SECURE BOOT
7MARLINxxxxxxx
8FRC Versionxxxxxxx
9IR Micom Versionxxxxxxx
10LAMP ERROR0Number of termination due to lamp error.
11MONITOR ERR CAUSE1)xxxxxx 2)xxxxxx
3)xxxxxx 4)xxxxxx
12NORMAL STANDBY CAUSE0Situation that became standby at the end. (Excluding the error)
13ERROR STANDBY CAUSE0 0 0 0Error standby cause
9ADJ PARAM SETEnterADJ PARAM SET
10VIC XPOS0X-coordinate setting for VIC READ
11VIC YPOS0Y-coordinate setting for VIC READ
12VIC SIGNAL TYPEMAINSignal type setting for VIC READ
13VIC READOFFPicture level acquisition function
3/21[TUNER ADJ]
1TUNER ADJEnterTUNER auto adjustment execution
2PAL+TUNER ADJEnterPAL TUNER auto adjustment execution
3TUNER ADJ (SMPTE)EnterTUNER auto adjustment execution (SMPTE)
4PAL+TUNER ADJ (SMPTE)EnterPAL TUNER auto adjustment execution (SMPTE)
5TUNER ADJ (SMPTE CH57)EnterTUNER auto adjustment execution (SMPTE CH57)
6PAL+TUNER ADJ (SMPTE CH57)EnterPAL TUNER auto adjustment execution (SMPTE CH57)
7TUNER CONTRAST A_GAIN14TUNER signal level adjustment
8TUNER CONTRAST D_GAIN2048TUNER signal level adjustment
9TUNER CONTRAST OFFSET256TUNER signal level adjustment
* It is Error that happens ahead of “1)”.
* Time is acquired from analogue broadcasting.
3) 16 B00000004:11Error code: 16 (lamp error) Accumulation time: It is displayed that 4:11 have passed after Backlight driving.
* It is Error that happens ahead of “2)”.
4) 00 0000000000000No error (“00” shows that the error is not occurred.)
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LC-70LE835E/RU, 836E/S, 838E
7. Lamp Error detection
1. Function
This LCD color TV set incorporates a Lamp error detection feature that automatically turns off the power for safety under abnormal lamp or lamp
circuit conditions. If by any chance anything is wrong with the lamp or lamp circuit or if the lamp error detection feature is activated for some reason, the following will result.
1) The power is interrupted in about 500ms after it is turned on.
(A central icon on the front of the TV flash on and off.: ON for 400ms and OFF for 1600ms.)
2) If the above phenomenon 1) occurs 5 times, it becomes impossible to turn on the power.
(A central icon keep flashing on/off.)
2. Measures
1) Set the lamp error detection to OFF
Enter the adjustment process mode, referring to “2. Entering and exiting the adjustment process mode”.
The adjustment process mode can ignore “5 times count”, so If the above phenomenon 1) occurs 1~4 times, the lamp will go out.
If Lamp Error detection pin [4pin of PD: P9602/19pin of IC2001] is “High” by a trouble with the lamp and lamp circuit, it can boot-up by the
adjustment process mode.
Please execute “Lamp Error detection off-mode”
Unplug the AC power cord of running TV set to force off the power.
While holding down the “VOL (-)” and “CH ()” keys on the set at once, plug in the AC power cord to turn on the power.
After a central icon flash off, separate the fingers from key on the set.
Then, you can check the operation to see if the lamp and lamp circuit are in trouble.
If you fail boot-up, retry the procedure.
2) Resetting the lamp error count
After the lamp and lamp circuit are improved from a trouble, reset the lamp error count.
(Because the power cannot be turned on, if a lamp error is detected 5 consecutive times.)
a) Enter the adjustment process mode, referring to “2. Entering and exiting the adjustment process mode”.
b) Using the cursor ( / ) key, move to the cursor to [LAMP ERROR RESET], Line 8 on adjustment process mode service page 2/21.
c) With the cursor ( / ) keys, select the [LAMP ERROR RESET] value.
Finally press the cursor (OK)., the count is reset.
Check LAMP ERROR Count on adjustment process mode Page 2/21.
Table of contents of adjustment process mode Page 2/21
INDUSTRY INITEnter
INDUSTRY INIT (-Publicl)OFF
Pubric MODEOFF
Center Acutime
RESETOFF
Backlight Acutime
RESETOFF
LAMP ERROR RESETOFF
Resetting to "0"
ADJ PARAM SETEnter
VIC XPOS
VIC YPOS
0
0
VIC SIGNAL TYPEMAIN
VIC READOFF
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LC-70LE835E/RU, 836E/S, 838E
8. Public Mode
1. Starting the Public Mode
1) Method of needing password
a) While holding down the “INPUT” and “Volume UP” keys on the set at once, plug in the AC power cord to turn on the power.
b) Display the Pass Word input screen.
After a while, value of Enter password appears on the screen.
Enter password
Enter password
Enter password
Operation procedure
• The initial input position is the digit at the left end.
• For the numeric keys “0” to “9” of R/C, key input is accepted.
Input of the other keys is prohibited.
• Change “—” to “ ” by inputting the numeric key at the input position, and shift the input position rightward one digit.
• When three digits are completely input, the Pass Word is judged.
c) Check the Pass Word by inputting three digits.
If the Pass Word “0” “2” “7”, it shifts to the PUBLIC Mode setting screen.
In another case, the screen is erased, and it operates in the ordinary mode.
2. Exiting the Public Mode Setting screen
• There are two following ways to exit the Public Mode setting screen.
1) Turn off the power.
2) Select “Execution” in the PUBLIC_Mode to execute it.
Activate the restart under the set content.
Here, the START input SOURCE setting is excluded since this item is referred to only when the power is turned on.
3. Set value of the Public Mode
• When the shipment setting is done, a set each value in Public Mode is initialized.
(PUBLIC MODE in the process mode Setting of a flag is also initialized)
• Separately, the shipment beginnings when all except for each set value in Public Mode is initialized are provided for a process mode.
(INDUSTRY INIT (-Public))
• Only when turning on the PUBLIC MODE item, each setting is effective.
• After it decides it with EXECUTE, it AC OFF/ON it to reflect a set value.
4. Basic operation in the Public Mode
Vol (+/-) or Cursor ( / ) Change or execution of the set value.
CH (+/-) or Cursor ( / ) Movement to the selected item.
Decision (ok)Excution (Used by the items "Execution" and "RESET".)
Public Mode setting screen.
Public Mode
POWER ON FIXED
SHUT DOWN MODE
MAXIMUM VOLUME
VOLUME FIXED
VOLUME FIXED LEVEL
RC BUTTON
PANEL BUTTON
MENU BUTTON
AV POSITION FIXED
ON SCREEN DISPLAY
INPUT MODE START
INPUT MODE FIXED
LOUD SPEAKER
RC PATH THROUGH
232C POWON
PUBLIC MODE
RESET
EXECUTE
5 – 9
[VARIABLE]
[NORMAL]
[60]
[VARIABLE]
[20]
[RESPOND]
[RESPOND]
[RESPOND]
[VARIABLE]
[YES]
[NORMAL]
[VARIABLE]
[ON]
[OFF]
[DISABLE]
[ON]
LC-70LE835E/RU, 836E/S, 838E
5. Operation after “RESET”
Select “RESET” in the PUBLIC Mode, and it operates as follows when it is executed (refer to the basic operation).
• The set contents in the PUBLIC mode are initialized.
• It does not exit the PUBLIC mode.
• If “EXCUTE” is not executed, the content that does RESET is not reflected.
6. Setting items. (* Item names and selective items are expressed in English.)
1) Power ON fixed [POWER ON FIXED]
Option“VARIABLE”, “FIXED_ALL”, “FIXED_BODYKEY” or “RCRESPOND” (loop enabled)
Default “VARIABLE”
Function • VARIABLE
• FIXED_ALL
• FIXED_BODYKEY
• RC RESPOND
Key disabled when set
other than default
Remarks • When selecting to “FIXED_ALL”, function related standby factors (see below) doesn’t work. and not selecting.
If the power button is pressed in the ordinary mode in setting to “FIXED_ALL” and “FIXED_BODYKEY”, the caution is displayed for 5 seconds.
• OFF TIMER (SLEEP) (*Only when setting to FIXED_ALL)
OFF TIMER (Sleep)
No operation OFF
No signal OFF (including the power management)
* These items does not exist according to the model.
: “POWER/RECEPTION” key on TV unit or remote control is enabled.
: “POWER/RECEPTION” key on TV unit or remote control is disabled.
: Only the “MAIN POWER” key on TV unit is disabled (The remote control is enabled).
: The main unit’s POWER switch toggles between ON and Standby (the same operation by the
remote control).
When power button on the main unit is pressedWhen power button on R/C is pressed
No Power off by power button.
* The OSD display is an example.
If another ODS is previously displayed, the status is reset (MENU or similar).
2) Instantaneous current shutdown setting in turning off the power [SHUT DOWN MODE]
Option“NORMAL” or “QUICK”
Default NORMAL
Function • This function decides whether scanning digital tuner is enabled or disabled when the power is standby.
NORMAL
QUICK
Remarks In selecting “QUICK”, the function does not work for the following items. (selection impossible.)
• ON TIMER, QUICK START, DIGITAL FIXED, etc.
* These items does not exist according to the model.
3) Volume maximum level [MAXIMUM VOLUME]
: Scanning digital tuner is enabled when the power is standby.
: Scanning digital tuner is disable.
It is possible to put into the standby state instantaneously due to power off input, when the
power is standby.
Immediately, state is a complete standby.
No Power off by remote control.
Option0~60 (loop disabled)
Default 60
FunctionThe volume cannot be increased more than the adjusted value (the main unit’s speaker only).
Remarks • When setting to 59 or less, only the figure is displayed in the normal mode; the volume bar is not displayed.
• The volume of the headphones is limited.
• The setting is impossible when VOLUME FIXED is set to FIXED.
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4) Volume fixed [VOLUME FIXED]
Option“VARIABLE”, “FIXED”, “ACCTRL” or “AC/RCCTRL” (loop enabled)
Default “VARIABLE”
Function • VARIABLE
• FIXED
• AC CTRL
• AC/RC CTRL
Exception• In the adjustment process, the volume can be set to any level regardless of this setting.
Disabled key when
setting to FIXED
Remarks • [MAXIMUM VOLUME] has priority to [VOLUME FIXED]
5) Volume fixed level [VOLUME FIXED LEVEL]
Option0~60 (loop disabled)
Default 20
FunctionThe volume is fixed to the adjusted value (the main unit’s speaker only).
Exception• In the adjustment process, the volume can be set to any level regardless of this setting.
Remarks • When [VOLUME FIXED] is set to “VARIABLE”, the setting cannot be changed.
• VOLUME UP/DOWN [both remote control and main unit]
•MUTE
* Main units's key is enabled for operating menu.
* When setting to FIXED, Maximum volume is fixed.
• The volume of the headphones is fixed.
• When setting to “FIXED”, the volume is not displayed in operating Disabled key.
• In menu operation, the main unit’s keys (Vol (+/-)) are enabled.
• Volume level graphic be omitted to volume level number.
• In setting to FIXED, ONVOL of On TIMER is not selected (Eliminate Item)
• In setting to AC/RC CTRL, ONVOL of On TIMER i is not selected (Eliminate Item)
• VOLUME can be abbreviated to VOL.
: The volume is not fixed.
: The volume is fixed to the value adjusted in the volume fixed level.
: The unit starts at the volume specified in the volume fixed level, when power is turned on in the
case of the AC-ON only.
: The unit starts at the volume specified in the volume fixed level, when power is turned on in
any case.
(AC→ON, remote control→ON, main utit's key→ON)
6) Remote control operation [RC BUTTON]
Option“RESPOND”, “NORESPOND” or “LIMITED” (loop enabled)
Default “RESPOND”
Function The operation of the remote control’s keys is set.
RESPOND
NO RESPOND
LIMITED
Exception• All the keys are enabled regardless of this setting while entering the adjustment process mode, inspection mode or
Public Mode setting screen.
Remarks The enable keys when setting to “LIMITED” are depended on Model.
7) Main Unit Operation [PANEL BUTTON]
Option“RESPOND” or “NO RESPOND” (loop enabled)
Default “RESPOND”
Function • RESPOND
• NO RESPOND
Exception• The start operation in the adjustment process mode, inspection mode are enabled regardless of this setting.
• All the keys are enabled regardless of this setting while entering the adjustment process mode, inspection mode or
Public Mode setting screen.
• For the models with the MENU key on the main unit, menu operation is possible regardless of the setting during the
initial setting when the power is turned on for the first time.
: The remote control’s keys in the normal state are enabled.
: The remote control’s keys in the normal state are disabled.
The POWER key (RECEPTION/STANDBY key) is also disabled.
: Only a part of keys (CHANNEL, etc.) is enabled and other keys are disabled.
: The main unit’s keys are enabled.
: The main unit’s keys are disabled excluding the POWER key (RECEPTION/STANDBY key).
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8) Menu operation [MENU BUTTON]
Option“RESPOND” or “NO RESPOND” (loop enabled)
Default “RESPOND”
FunctionThe MENU key on the main unit and remote control is decided whether it is enabled or disabled.
Exception• RESPOND
Disabled key excluding
Menu key when setting
to not default
Remarks When setting to “NO RESPOND”
9) AV position fixed [AV POSITION FIXED]
Option“VARIABLE” or “FIXED” (loop enabled)
Default “VARIABLE”
Function • VARIABLE
Remarks • When receiving the sound select direct keys (AV POSITION key, OPC, DOLBY key, etc.), only the actual state is
• NO RESPOND
All the direct transition keys to menu display. (AUTO PRESET, MANUAL MEMORY and others)
* These keys does not exist according to the model.
• For the models with the MENU key on the main unit, menu operation is possible regardless of the setting while the
initial setting when the power is turned on for the first time.
• FIXED
displayed; no setting is changed.
* These keys does not exist according to the model.
• The settings for the Public mode are retained after the personal data is initialized, each item for the AV position and
image/sound adjustment are not initialized.
: The manu key is enabled.
: The manu key is disabled.
: All the keys are enabled regardless of this setting while entering the process mode, inspection
mode or Public Mode setting screen.
: AV position is not fixed.
: AV position is fixed.
: The image/sound adjustment items in the menu are fixed in the selected state.
: When receiving “AV POSITION” of the remote control, only the actual state is displayed, and
setting is not changed.
10) OSD display [ON SCREEN DISPLAY]
Option“YES”, “NO” or “LIMITED” (loop enabled)
Default “YES”
Function • YES
Key which may be
enabled
(Example of the confusing key)
Disabled key when
setting to not default
Remarks • When setting to “NO”,
“LIMITED” is looped only in case of need (destination).
: OSD is displayed.
•NO
•LIMITED
• It is OK in the case that simple input select occur or the original state returns soon automatically.
• When setting to “NO”, the keys which is related to visibility of the screen and sound cannot be used.
STILL IMAGE, SCREEN DISPLAY, OFF TIMER, AV POSITION, BRIGHTNESS SENSOR, SCREEN SIZE SELECT,
AUTO PRESET, MANUAL MEMORY, IMAGE SELECT, SOUND SELECT, LANGUAGE, Closed caution
* Disabled keys dependeds on the models.
ON TIMER (Watching reservation) is cleared.
OFF TIMER “SLEEP” is cleared.
* These items does not exist according to the model.
• When setting to “NO”,
These Displays (Version-up, Public mode setting screen, Pass Word input screen of Public
Mode, the adjustment process mode, K mark of inspection mode) are enabled regardless of
this setting.
: The following OSD is not displayed.
Registration, setting, adjustment menu, channel call, volume bar, and input select.
: Only a part of OSD (CH call: “New Information” etc...) is not displayed.
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11) Start mode [INPUT MODE START]
Option“NORMAL” or “Input source 1 (input selection or channel)” ... (loop enabled)
Default “NORMAL”
Function Which kinds of input source or channel is decided when the power turning on.
NORMAL: The content of the last memory is followed.
Remarks• When setting to not Normal, ON TIMER (Watching reservation) has priority.
• When setting to “NORMAL”, [INPUT MODE FIXED] is set to “VARIABLE” and [INPUT MODE FIXED] is prohibited to
select. (selection impossible.)
Example of option: “NORMAL”, “TVD (002TV)”, “INPUT1”, “INPUT2”, “INPUT3”, “HDMI1”, “HDMI2”, “HDMI3”, “HDMI4”.
12) Input fixed [INPUT MODE FIXED]
Option“VARIABLE”, “FIXED”, “ACCTRL” or “AC/RCCTRL” (loop enabled)
Default VARIABLE
Function VARIABLE
Disabled key when
setting to “FIXED”
Remarks• If [INPUT MODE START] is Normal, this function cannot be set.
FIXED
AC CTRL
AC/RC CTRL
CHANNEL (+/-), DIRECT CHANNEL buttons, FLASHBACK, INPUT SELECT, TV/VIDEO, AUTO PRESET,
MANUAL MEMORY, i.LINK, DIRECTINPUTSELECT, ATV, DTV, EPG, RADIO etc...
Set to “VARIABLE” automatically.
• When setting to “FIXED”,
The item related to the channel setting and input selection in Menu are not displayed.
ON TIMER (Watching reservation) is not active.
* These items does not exist according to the model.
: If [INPUT MODE START] is set to Normal, input mode is not fixed.
: When “INPUT MODESTART” is active, it is impossible to switch to another channel or input
source.
: When “INPUT MODESTART” is active the unit starts at the input mode which is selected when
power is turned on in the case of the AC-ON only.
: When “INPUT MODESTART” is active the unit starts at the input mode which is selected
when power is turned on in any case.
(AC→ON, remote control→ON, main utit's key→ON)
13) Speaker ON/OFF selection [LOUD SPEAKER]
Option“ON” or “OFF” (loop enabled)
Default ON
Function ON
OFF
Remarks• When the VOL (+/-) key is pressed, the mute icon is displayed for 4 seconds.
• For the MUTE key and sound-related keys, caution is displayed.
• For the headphones, normal operation is possible.
14) Remote control path through [RC PATH THROUGH]
Option“OFF”, “ON: TVRCE” or “ON: TVRCD” (loop enabled)
Default OFF
Function The item decide whether the signal received by the remote control’s light-receiving section is output to the blankpin (9pin)
of RS232C.
OFF
ON: TVRCE
ON: TVRCD
Exception• In the case of “ON: TV RCD”, the start operation in the adjustment process mode, inspection mod are enabled
regardless of this setting.
• In the case of “ON: TV RCD”, all the keys are enabled regardless of this setting while entering the adjustment process
mode, inspection mode or Public mode setting screen.
Remarks * Remote control path through does not exist according to the model.
: The sound from the speakers is output.
: The sound from the speakers is not output even if the headphones are not used.
: This function is not active.
: This function is active, and remote control is active, too.
: This function is active, but remote control is not active.
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15) 232C power ON control [232C POWON]
Option“ENABLE” or “DISABLE” (loop enabled)
Default DISABLE
Function The item decide whether Power ON by the 232C command is enabled/disabled in the standby state.
The same function as 232C command “RSPW”.
ENABLE
DISABLE
16) Public mode setting [PUBLIC MODE]
Option“OFF” or “ON” (loop enabled)
Default OFF
Function The item decide whether Public mode setting menu are enabled or disabled.
The same item as [PUBLIC MODE] in the adjustment process menu.
OFF
ON
Remarks Each operation of the Public mode is impossible unless this item is set to ON.
9. Copy Mode
1. Starting the Copy Mode
1) Method of needing password
a) While holding down the “INPUT” and “Volume UP” keys on the set at once, plug in the AC power cord to turn on the power.
b) Display the Pass Word input screen.
After a while, value of Enter password appears on the screen.
: POWR0001 is always enabled.
: Start-up may be impossible at POWR0001.
(If the 232C command reception module is set to OFF, the command is invalid.)
: Public mode is not active.
: Public mode is active.
Enter password
Operation procedure
• The initial input position is the digit at the left end.
• For the numeric keys “0” to “9” of R/C, key input is accepted.
Input of the other keys is prohibited.
• Change “—” to “ ” by inputting the numeric key at the input position, and shift the input position rightward one digit.
• When three digits are completely input, the Pass Word is judged.
c) Check the Pass Word by inputting three digits.
If the Pass Word “3” “6” “9”, it shifts to the Copy Mode setting screen.
In another case, the screen is erased, and it operates in the ordinary mode.
2. Exiting the Copy Mode Setting screen
There is following way to exit the Copy Mode setting screen.
• Turn off the power. (Unplug the AC power cord from the outlet to forcibly turn off the power.)
3. Basic operation in the Copy Mode
CH (+/-) or Cursor ( / )
Decision (ok)Execution
Movement to the selected item.
Enter password
Enter password
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4. Restriction of Copy Mode
• USB thumb drive should be more than 1Mbyte.
• File system of USB thumb drive should be FAT (FAT32).
• More than one USB thumb drive shouldn't be connected to TV.
• All USB terminals can be valid, but more than one USB thumb drive shouldn't be connected to TV.
• If USB device is detected by TV, focus is not appropriated to items.
• In Copy mode (TV→USB) and (USB→TV), following should be mutched.
Vender Name (Fixed)
Key Information (Fixed)
USB Cline Version
Inch Size
Country setting (Factory initialization)
Model Name
Software Version
• In each TV, setup of Network and IP control should be set again.
NOTE: • It is unnecessary to execute “Initial Auto Instration” for Copy Mode.
(Obviously, setting the country is also unnecessary.)
• Copy Mode can’t start until the TV recognizes a USB device.
TV takes about 20 seconds to recognizes a USB device after boot-up.
5. Copy data
Copy data is as follows;
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Copy DataRemarks
Size of Ch call
Card slot selection Setting
Alphabet sorts do/not
HOME/Store Setting
Public Setting
Sound multiplex information in each Ch
Administrative information for Time ShiftVendor ID, Product ID, Serial ID for storage
Communication's informationIP address, Gateway, DNS address
Kinds of Security key encryption (WiFi)
Access point identifier (WiFi)
Key for access point
IP control setting informationDevice name, Login ID, Password, Communication port
DTV service listNumber of all services
CH list
Number of broadcasting on each network
Last valueLast network information (DVB-T, DVB-S, DVB-C, ATV)
Last channel information
Volume, wide mode, and subtitle
Local Time InformationInformation that corrects ±X time against Universal Time
User Manu DataUser Menu Data don't have these information.
Temporary data
Message list, Reception report, EPG, Off timer, Off video, and Signal strength
Peculiarity data for TV
DRM information for DivX, Mac address, and Accumulated time information
Connected equipment information
(But the recorder selection of the AQUOS LINK setting can be copied.)
physical address
Category of equipment
Maker Name
Connected model name
Data related to encrypted broadcasting (CI+)
Adjustment process mode Data
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Copy mode
TVUSB[Start]
USBTV[Start]
Copy mode
Copy mode
Copy mode
Execcute
Success
Fail
Execcute
Success
Fail
Copy mode
Copy mode
Copy mode
Copy mode
TVUSB[Wait... ]
USBTV[Start]
TVUSB[Done ]
TVUSB[Failed ]
USBTV[Start]
TVUSB[Start]
USBTV[Wait... ]
USBTV[Done]
USBTV[Failed]
USBTV[Start]
USBTV[Start]
TVUSB[Start]
TVUSB[Start]
TVUSB[Start]
6. Operating
1) Copy mode (TVψUSB))
Execute start in Copy Mode setting screen.
If USB device is detected by TV,
focus is not appropriated to items.
[Wait] is displayed while executing it.
When succeeding: Done is displayed.
When failing:Failed is displayed.
Key opration is not valid in coping.
After success of copy,
unplug the AC power cord from the outlet, please.
2) Copy mode (USBψTV))
Execute start in Copy Mode setting screen.
If USB device is detected by TV,
focus is not appropriated to items.
[Wait] is displayed while executing it.
When succeeding: Done is displayed
When failing:Failed is displayed.
Key opration is not valid in coping.
After success of copy,
unplug the AC power cord from the outlet, please.
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10. Video signal adjustment procedure
[VIDEO input signal]
100% whiteBlack
[VIDEO input signal]
100% whiteBlack
The adjustment process mode menu is listed in Section 5.
Signal generator level adjustment check. (Adjustment to the specified level)
• Composite signal PAL: 0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
• 33K component signal (50 Hz): Y level : 0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
: PB, PR level: 0.7Vp-p ± 0.02Vp-p
• ANALOG PC (RGB) signal: RGB level: 0.7Vp-p ± 0.02Vp-p
10.1. Entering the adjustment process mode
Enter the adjustment process mode according to Section 2.
Bring the cursor on [ANALOG PC ADJ] and press [OK].
[ANALOG PC ADJ OK] appears when finished.
• Feed the RGB 15k 50Hz 100% full field colour bar signal (100% colour saturation) to EXT1 SCART IN.
Bring the cursor on [SCART RGB ADJ] and press [OK].
[SCART RGB ADJ OK] appears when finished.
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11. White balance adjustment
For white balance adjustment, adjust the offset values on pages 11/21.
[Condition of the unit for inspection] : Modulated light (+16)
AV MODE: DYNAMIC
Active Backlight: OFF
OPC: OFF
Asing Time: Min, 60 minute
[Input signal condition] : HDMI 1080i 15IRE (LO), 78IRE (HI)
[Adjustment reference device] : Minolta CA-210
[Adjustment procedure]
1) Display the current adjustment status at R/G/B_GAIN (HI). (Page 11/21 of process adjustment)
The signal of 78IRE is input.
2) Read the value of the luminance meter. x=0.272, y =0.277
3) Change R_GAIN (HI)/ B_GAIN (HI) (Adjustment offset value) on page 11/21 of process adjustment so that the values of the luminance meter
approach x=0.272 and y =0.277.
(Basically, G is not changed. If adjustment fails with R and B, change G. When G is lowered, the weaker of R or B must be fixed.)
4) Display the adjustment status of the current R/G/B_GAIN (LO).
The signal of 15IRE is input.
Change R_GAIN (LO)/ B_GAIN (LO) (adjustment offset value) on page 11/21 of process adjustment so that the values of the luminance meter
approach x =0.272 and y = 0.277.
5) Both HI and LO are repeating the step from 1 to 4 until becoming an aim value.
6) After completing adjustments, set EEP SAVE (Page 21/21) to ON in the process menu to save the white balance adjustment value.
12. Confirmation item
1. HDMI-CEC Inspection
After repairing the CEC function, check the operation about HDMI-CEC circuit.
2. CI card Inspection
After repairing the CI function, check that the DTV signal is received by inserting CAM.
And check the KEY certification by inserting CAM which is prepare for CI+.
3. LAN Inspection (NET)/test connectivity of SD card.
After repairing the LAN function, check the communication by connecting PC and LAN terminal.
And test connectivity of SD card.
4. 3D Check
5. IR communication Check/IR Emitter (Infrared light Output) Inspection.
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㨀㨂
[InformationSoftware updateUSB update]
Insert the USB memory device containing
the software update file.
13. Initialization to factory settings
CAUTION: When the factory settings have been made, all user setting data, including the channel settings, are initialized.
1 Factory settingsEnds by turning off the
After adjustments, exit the adjustment process mode.
To exit the adjustment process mode, unplug the AC power cord from the outlet to forcibly turn off the power.
When the power is turned off with the remote control, unplug the AC power cord and plug it back in (wait approximately 20 seconds before plugging
in the AC power cord).
After completing the NET connection., execute the NET initialization (Record of the server access).
Please execute the initialized in the factory setting again when you turn on the power supply after the initialized in the factory setting is set.
(The adjustments done in the adjustment process mode are not initialized.) Keep this in mind when initializing these settings.
[Factory setting with adjustment process mode]
MAIN POWER key.
(See to below caution)
• Enter the adjustment process mode.
• Move the cursor to [INDUSTRY INIT] on page 2/21.
• Use the R/C key to select a region from [EUROPE/RUSSIA/SWEDEN] and
press the [OK] key.
• “EXECUTING” display appears.
• After a while, “SUCCESS” display appears, the setting is completed.
When succeeding: Background color (green)
When failing: Background color (red)
The following items are initialized in the factory setting.
1) User settings
2) Channel data (e.g. broadcast frequencies)
3) Maker option setting
4) Password data
14. Upgrading the software
1. Turn on the AC power.
2. Insert the upgrading USB flash memory for upgrade into the service slot.
(After a while, an external input changes into USB automatically.)
3. Use the Menu button and cursor keys ( / / / ), Ch keys (/) of R/C or on the set to select Menu - Setup - Information - Software update
- USB update on OSD menu.
4. The message (Insert the USB memory device contains the software update file) shows up.
Push OK when if there is no problem.
OK
ENTER:Enter
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Software update file is detected
in the USB memory device
start update
TV
[InformationSoftware u pdateUSB update]
[InformationSoftware updateUSB update]
Now updating
5. After a while, if software update file is detected in the USB memory device, the following screen shows up.
Select OK when if there is no problem.
NOTE: If USB memory device isn’t correctly inserted in TV, caution shows up.
Please insert USB memory device and retry software update.
NOTE: If there are more than two software update files in the USB memory device, caution shows up.
Please insert one file and retry software update.
NOTE: If there is no software update file in the USB memory device, caution shows up.
Please insert the correct file and retry software update.
NOTE: If software update file in the USB memory device doesn’t mutch this model, caution shows up.
(Because Model name is unmatched or check sum error occurs.)
Please insert the correct file and retry software update.
NOTE: If software update file in the USB memory device is already installed, caution shows up.
Please reconfirm the software version and reinstall. (if necessary)
Current version
xxxxxxxxxxxx
Update version
xxxxxxxxxxxx
YesNo
6. The caution for update showes up.
• The picture will temporary go dark until the software update display apeeares.
• Wait several minutes and don’t unplug the AC cord.
Select OK when if there is no problem.
7. Software update starts.
Please wait for a while until the bar shows 100%.
NOTE: Do not take out the USB memory device during updating.
TV
Update version
xxxxxxxxxxxx
75%
Remote control operation is disabled during update process.
Do not unplug AC cord.
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[InformationSoftware updateUSB update]
System software was successfully updated.
Remove the USB memory device.
Update version
: EXXXXXXX-2
8. When all the procedures are complete, the following upgrade success screen shows up.
The new software version can be confirmed on screen.
After a while, Turn off power and boot-up automaticaly.
NOTE: TV is restarted automaticaly, the AC code need not be pulled out.
TV
Software Update is complete.
Update version
xxxxxxxxxxxx
9. After boot-up, the following caution shows up.
Select OK when if there is no problem.
Software update is completed, please remove the USB memory device.
NOTE: Then get the set started and call the process adjustment screen (Top Page) to check the main software version.
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CHAPTER 6. TROUBLESHOOTING TABLE
Service Manual
[1] TROUBLESHOOTING TABLE
No power (Central Icon LED failure to light up) or No startup (Central Icon LED is flashing)
Is the AC cord connector tightly connected to the set?NOReconnect the AC cord tightly and turn on the power again.
YES
Are the wire harnesses and other cables properly connected to
the set?
YES
Is power supplied from pins [9/BU+5V] of [PD] P9602?NOReplace the power unit.
YES
Is there the pins [12/PS_ON] of [PD] P9602 at “H”?NOCheck the signal line between PS_ON and IC2001 (UCOM)/
YES
Is there the pins [11/AC_DET] of [PD] P9602 at “H”?NOCheck the power unit, and the signal line between AC_DET and
NOReconnect the wire harnesses and other cables properly to the
set.
IC3303 (Digital AV decode & Main CPU).
IC2001/IC3303.
YES
Is power supplied from pins [17~20/UR+13V] of [PD] P9602 as
specified?
YES
Are the DC/DC converter outputs and the output voltages along
the control lines as specified?
1) BU3.3V (IC9609 etc.)
2) D5.6V (IC9608 etc.)
3) D5V (IC9603 etc.)
4) U5V (IC9602 etc.)
5) D3.3V (IC9605 etc.)
6) M1.8V (IC9607 etc.)
7) D1.5V (IC9604 etc.)
8) D1.2V (IC1509 etc.)
9) D1.1V (IC9606 etc.)
10)AT5V (IC1104 etc.)
11)IF1.8V (IC1109 etc.)
12)SAT+1.2V (IC1102 etc.)
13)STB+3.3V (Q9607 etc.)
14)SD3.3V (IC8456 etc.)
15)CPU_A+1.2V (IC3301 etc.)
16)CIIN+5V (IC4403 etc.)
17)MT5135+1.1V (IC4401 etc.)
NOCheck the line between PS_ON and IC2001/IC3303.
NOCheck the DC/DC converters and the control lines.
Replace defective parts as required.
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The sound is not emitted from the Speaker
No sound output in all modes?
YES
Do audio signals output from pins [Y30/CPU_AOLRCK, Y31/
CPU_AOBCK, V27/CPU_AOSDATA0] of IC3303 (Digital AV
decode & Main CPU)?
YES
Do audio signals input to pins [7, 8, 9] of IC2701 (DSP)?NOCheck the line between IC3303 and IC2701.
YES
Do audio signals output from pins [43/AMP_BCLK, 44/
AMP_LRCLK, 45/AMP_DATA_LR, 47/AMP_MCLK] of IC2701?
YES
Do audio signals input to pins [5, 6, 7, 8] of IC2703 (SP_AMP)?NOCheck the line between IC2701 and IC2703.
YES
Do audio signals output from pins [28/OUTML, 30/OUTPL, 12/
OUTPR, 14/OUTMR] of IC2703?
NOCheck IC3303 and its peripheral circuits.
NOCheck IC2701 and its peripheral circuits.
NOCheck IC2703 and its peripheral circuits.
YES
Is AMP_MUTE [pin (21)] of IC2703 at “H”?NOCheck the line between IC2703 and IC3303 & IC2001 (UCOM).
YES
Do audio signals input to pins [1&2/L-ch, 3&4/R-ch] of P2701?NOP2701 terminal and the peripheral circuit (L/C filter) are checked.
YES
Check Speaker (right and left) and wire harness.
(Q2701,D2701 etc...)
6 – 2
LC-70LE835E/RU, 836E/S, 838E
No sound (during the reception of TV (ANALOG) broadcasting)
Does not the sound go out though the picture has come out when UHF/VHF is received?
In the case of LE835, 838 series, refer to (A).
In the case of LE836 series, refer to (B).
(A)
Does SIF signal output from pin (8) of TUNER
(TU1102)?
YES
Does SIF signal input to pin [AM24/CPU_ATV_IF+] of
IC3303 (Digital AV decode & Main CPU)?
YES
Refer to “The sound is not emitted from the Speaker & Woofer though the picture has come out.”
(B)
Does SIF signal output from pin (8) of TUNER (TU1104)?NOCheck the tuner and its peripheral circuits.
YES
Does SIF signal input to pin [AM24/CPU_ATV_IF+] of IC3303
(Digital AV decode & Main CPU)?
NOCheck the tuner and its peripheral circuits.
Replace as required.
NOCheck the line between TU1102 and IC3303. (Q1102, etc.)
Replace as required.
NOCheck the line between TU1104 and IC3303. (Q1102, etc.)
YES
Refer to “The sound is not emitted from the Speaker.”
6 – 3
LC-70LE835E/RU, 836E/S, 838E
No sound (during the reception of TV (DIGITAL) broadcasting)
Does not the sound go out though the picture has come out when DTV is received?
In the case of LE835, 838 series, refer to (A).
In the case of LE836 series, refer to (B).
(A)
Do IF signals output to pins [10, 11] of TUNER
(TU1102)?
YES
Do IF signals input to pins [35/IFPGA_INN, 36/
IFPGA_INP] of IC4402 (CI Cont & DTB-T/C Demod)?
YES
Do TS signals output to pins [15/DEMOD_TS_DATA0,
16/DEMOD_TS_SYNC, 17/DEMOD_TS_VAL, 18/
DEMOD_TS_CLK] of IC4402?
YES
Do TS signals input to pins [U30/DEMOD_TSDATA0,
V30/DEMOD_TSSYNC, V29/DEMOD_TSVAL, U32/
DEMOD_TSCLK] of IC3303 (Digital AV decode & Main
CPU)?
NOCheck the tuner and its peripheral circuits.
Replace as required.
NOCheck the line between IC1102 and IC4402.
NOCheck IC4402 and its peripheral circuits.
NOCheck the line between IC4402 and IC3303.
YES
Refer to “The sound is not emitted from the Speaker.”
(B)
Do TS signals output to pins [19/TS_TUOUT_CLK, 17/
TS_TUOUT_SYNC, 18/TS_TUOUT_VAL, 20~27/
TS_TUOUT_D0~7] of TUNER (TU1104)?
YES
Do TS signals input to pins [45/TS_TUOUT_CLK, 46/
TS_TUOUT_SYNC, 47/TS_TUOUT_VAL, 48, 51~57/
TS_TUOUT_D0~7] of IC4402 (CI Cont & DTB-T/C Demod)?
YES
Do TS signals output to pins [15/DEMOD_TS_DATA0, 16/
DEMOD_TS_SYNC, 17/DEMOD_TS_VAL, 18/
DEMOD_TS_CLK] of IC4402?
YES
Do TS signals input to pins [U30/DEMOD_TSDATA0, V30/
DEMOD_TSSYNC, V29/DEMOD_TSVAL, U32/
DEMOD_TSCLK] of IC3303 (Digital AV decode & Main CPU)?
YES
Refer to “The sound is not emitted from the Speaker.”
NOCheck the tuner and its peripheral circuits.
Replace as required.
NOCheck the line between TU1104 and IC4402.
NOCheck IC4402 and its peripheral circuits.
NOCheck the line between IC4402 and IC3303.
6 – 4
No sound (during the reception of TV (DIGITAL-Satellite) broadcasting)
(DIGITAL-Satellite is only function for LE835, 838 series)
Does not the sound go out though the picture has come out when DTV is received?
Do TS signals output to pins [44/TS_TUOUT_CLK, 46/
TS_TUOUT_SYNC, 45/TS_TUOUT_VAL, 43~36/
TS_TUOUT_D0~7] of TUNER(TU1102)?
YES
Do TS signals input to pins [45/S2_TS_CLK, 46/S2_TS_SYNC,
47/S2_TS_VAL, 48,51~57/S2_TS_DATA0~7] of IC4402 (CI Cont
& DTB-T/C Demod)?
YES
Do TS signals output to pins [15/DEMOD_TS_DATA0, 16/
DEMOD_TS_SYNC, 17/DEMOD_TS_VAL, 18/
DEMOD_TS_CLK] of IC4402?
YES
Do TS signals input to pins [U30/DEMOD_TSDATA0, V30/
DEMOD_TSSYNC, V29/DEMOD_TSVAL, U32/
DEMOD_TSCLK] of IC3303 (Digital AV decode & Main CPU)?
NOCheck the tuner and its peripheral circuits.
Replace as required.
NOCheck the line between TU1102 and IC4402.
NOCheck IC4402 and its peripheral circuits.
NOCheck the line between IC4402 and IC3303.
LC-70LE835E/RU, 836E/S, 838E
YES
Refer to “The sound is not emitted from the Speaker.”
No sound from external input devices (1)
Does not the sound of the audio signal input to EXT1 go out?
Do audio signals input to pins [2/AUDIO_IN_R, 6/AUDIO_IN_L]
of EXT1 (SC505)?
YES
Do audio signals input to pins [AM32/SC1_AINR0, AM30/
SC1_AINL0] of IC3303 (Digital AV decode & Main CPU) from
SC505?
YES
Refer to “The sound is not emitted from the Speaker.”
NOCheck the setting of an external input device that connects with
EXT1.
NOCheck the line between SC505 and IC3303.
6 – 5
LC-70LE835E/RU, 836E/S, 838E
No sound from external input devices (2)
Does not the sound of the audio signal input to EXT2 go out?
• Do audio signals input to pins[2/CVBS1_IN_R, 3/
CVBS1_IN_L] of EXT2 (J511)?
• Is CVBS_PLUG [4/CVBS1_PLUG] of J511 at “L”
YES
Do audio signals input to pins [AL32/CVBS1_AINR2, AL30/
CVBS1_AINL2] of IC3303 (Digital AV decode & Main CPU)?
YES
Refer to “The sound is not emitted from the Speaker.”
No sound from external input devices (3)
Does not the sound of the audio signal input to EXT3 go out?
Do audio signals input to pins [7/COMP1_IN_R, 8/COMP1_IN_L]
of EXT3 (J511)?
NOCheck the setting of an external input device that connects with
EXT2.
NOCheck IC3303 and its peripheral circuits.
NOCheck the setting of an external input device that connects with
EXT3.
YES
Do audio signals input to pins [AK29/COMP1_AINR1, AK27/
IFCOMP1_AINL1] of IC3303 (Digital AV decode & Main CPU)?
YES
Refer to “The sound is not emitted from the Speaker.”
No sound from external input devices (4)
Does not the sound of the audio signal input to HDMI-2
mode go out?
Check whether it is selected “HDMI + Analog” by the Audio select
under Menu-Setup-Option-Terminal setting-Audio select.
YES
Do audio signals input to pins [2/PC/HDMI_L, 3/PC/HDMI_R] of J501 (PC AUDIO_IN)?
YES
Do audio signals input to pins [AM27/PC_HDMI_AINL4, AJ27/
PC_HDMI_AINR4] of IC3303 (Digital AV decode & Main CPU)?
NOCheck IC3303 and its peripheral circuits.
Does not the sound of the audio signal input to PC/Component mode go out?
Check whether it is selected “Video + Audio” by the Audio select
under Menu-Setup-Option-Terminal setting-Audio select.
NO
Check the setting of an external input device that connects with
J501.
NOCheck the line between J501 and IC3303.
YES
YES
Refer to “The sound is not emitted from the Speaker.”
6 – 6
No sound from external input devices (5)
Does not the sound of the audio signal input to HDMI1/2/3/4 go out?
Please Refer to “[External input HDMI-1/2/3/4] No picture on the display (11)”.
No sound from external output device (1)
No audio signal output to EXT1 terminal.
Do audio signals output from pins [1/AUDIO_OUT_R, 3/
AUDIO_OUT_L] of EXT1 (SC505)?
NO
Is AUDIO_MUTE(MUTE_A_ALL) [23 pin] of IC2001 (UCOM) at
“H”?
NO
Do audio signals output from pins [1/TUNER_R_OUT, 7/
TUNER_L_OUT] of IC2706 (Buffer AMP)?
YESCheck the setting of an external input device that connects with
YESCheck the peripheral circuits of IC2001 and AUDIO_MUTE.
YESCheck the line between IC2706 and SC505.
LC-70LE835E/RU, 836E/S, 838E
EXT1.
(Q502 etc...)
NO
Do audio signals input to pins [2, 6] of IC2706?YESCheck IC2706 and its peripheral circuits.
NO
Do audio signals (TUNER_OUTR/L) output from pins [AG31/
TUNER_OUT_R, AG32/TUNER_OUT_L] of IC3303 (Digital AV
decode & Main CPU)?
NO
Check IC3303 and its peripheral circuits.
YESCheck between IC3303 and IC2706.
6 – 7
LC-70LE835E/RU, 836E/S, 838E
No sound from external output device (2)
No sound from HEAD PHONE_OUTPUT/ AUDIO_OUTPUT terminal.
Does not the sound of the audio signal output to Headphone
mode go out?
Check whether it is selected “Headphone” by Headphone/Audio
out select under Menu-Setup-Option-Terminal setting-Headphone/Audio out select.
Do audio signals output from pins [2/MONI_HP_R, 3/MONI_HP_L] of J504 (HP Jack/AUDIO OUT)?
Is HP_PLUG [1 pin] of J504 at “H”?
NO
Is HPOUT_MUTE at “H”?
Is HP_MUTE [AH12] of IC3303 at “H”?
Is AUDIO_MUTE (MUTE_A_ALL) [23 pin] of IC2001 (UCOM) at
“H”?
NO
Do audio signals output from pins [2/MONI_HP_L, 11/
MONI_HP_R] of IC2704 (HP-AMP)?
YESCheck the line between J504 and HPOUT_MUTE.
YESCheck the line between IC2704 and J504.
Does not the sound of the audio signal output to Audio out
mode go out?
Check whether it is selected “Audio out” by Headphone/Audio out
select under Menu-Setup-Option-Terminal setting-Headphone/
Audio out select.
YES
Check the setting of an external input device that connects with
J504.
And check the line between J504 and IC3303 (Digital AV decode
& Main CPU).
(Q506, D2711, IC3303 & IC2001 etc...)
NO
Do audio signals input to pins [1, 12] of IC2704?YESCheck IC2704 and its peripheral circuits.
NO
Do audio signals (HP_MONITOR_L/R) output from pins [AJ31/
HP_MON_L, AJ32/HP_MON_R] of IC3303?
NO
Check IC3303 and its peripheral circuits.
YESCheck the line between IC3303 and IC2704.
6 – 8
LC-70LE835E/RU, 836E/S, 838E
No sound from external output device (3)
No sound from DIGITAL AUDIO OUTPUT terminal.
Does audio signal output from pin [1] of sound output terminal
(D527)?
NO
Does audio signal output from pin [4] of IC503?YESCheck the line between IC503 and D527.
NO
Is AUDIO_MUTE (MUTE_A_ALL) [23 pin] of IC2001 (UCOM) at
“H”?
NO
Does audio signal input to pin [2] of IC503?YESCheck IC503 and peripheral circuits.
NO
Does audio signal (OPT_OUT) output from pin [AA31/
CPU_ASPDIF] of IC3303 (Digital AV decode & Main CPU)?
YESCheck D527 and peripheral circuits.
YESCheck the peripheral circuits of IC503 and AUDIO_MUTE.
(Q505 etc...)
YESCheck the line between IC3303 and IC503.
NO
Check IC3303 and its peripheral circuits.
No sound from external output device (4)
Does not the sound of the audio signal output to HDMI1 go out?
Does audio signal output from pin [14] of SC1503 (HDMI1 terminal)?
NO
Does audio signal output from pin [39/HECP] of IC1504 (HDMISW)?
NO
Does audio signal input to pin [36/SPDIF_IN] of IC1504?YESCheck IC1504 and peripheral circuits.
NO
Does audio signal (HDMI_OPT_OUT) output from pin [AA31/
CPU_ASPDIF] of IC3303 (Digital AV decode & Main CPU)?
NO
Check IC3303 and its peripheral circuits.
YESCheck SC1503 and peripheral circuits.
YESCheck the line between IC1504 and SC1503.
YESCheck the line between IC3303 and IC1504.
6 – 9
LC-70LE835E/RU, 836E/S, 838E
No picture on the display (1)
The picture doesn't appear in all modes.
Is the LVDS signal output from IC3303 (DIGITAL_AV_DECODER_&_MAIN_CPU) respectively?
[LVDS0_D0N/P (B15/A15), LVDS0_D1N/P (B16/A16), LVDS0_D2N/P (B17/A17), LVDS0_CLKN/P_74MHz (B18/A18), LVDS0_D3N/P (B19/A19),
LVDS0_D4N/P (B20/A20), LVDS1_D0N/P (C15/D15), LVDS1_D1N/P (E15/E16), LVDS1_D2N/P (C17/D17), LVDS1_CLKN/P_74MHz (E17/E18),
LVDS1_D3N/P (C19/D19), LVDS1_D4N/P (E19/E20)]
NO
Check IC3303 and its peripheral control circuits.
YES
Do above-mentioned LVDS signals output from connector
(P2601)?
YES
Similarly, is LCD controller's control signal normal?NOPlease check each control signal of DET_POW (DET_PNL12V),
YES
LCD Controller Unit:
Do LVDS signals input to connector (LW) of LCD Controller Unit?
NOCheck the line between IC3303 and P2601.
NO Wire harness (LW) is checked.
(IC2001, IC3501, IC3502, X3301, etc.)
PE (PNL_EN).
YES
Check the panel module.
No picture on the display (2)
Does not the picture come out when VHF/UHF is received?
In the case of LE835, 838 series, refer to (A).
In the case of LE836 series, refer to (B).
(A)
Does video signal (IFTU_AIF+/CVBS) output from pin [9]
of TUNER (TU1102)?
YES
Does video signal (TUNER_CVBS) input to pin [AK24/
CPU_CVBS0P] of IC3303 (Digital AV decode & Main
CPU)?
YES
Refer to “No picture on the display (1)”.
(B)
Does video signal (IFTU_AIF+/CVBS) output from pin [9] of
TUNER (TU1104)?
NOCheck the tuner and its peripheral circuits.
Replace as required.
NOCheck the line between TU1102 and IC3303. (Q1106, etc...)
NOCheck the tuner and its peripheral circuits.
Replace as required.
YES
Does video signal (TUNER_CVBS) input to pin [AK24/
CPU_CVBS0P] of IC3303 (Digital AV decode & Main CPU)?
YES
Refer to “No picture on the display (1)”.
NOCheck the line between TU1104 and IC3303. (Q1106, etc...)
6 – 10
LC-70LE835E/RU, 836E/S, 838E
No picture on the display (3)
Does not the picture come out when DTV is received?
Refer to “No sound (during the reception of TV (DIGITAL) broadcasting)”.
No picture on the display (4)
Does not the picture come out when DTV (Satellite) is received?
Refer to “No sound (during the reception of TV (DIGITAL-Satellite) broadcasting)”.
[External input EXT1] No picture on the display (5)
Does not the picture of the CVBS signal input to EXT1 go out?
Does CVBS signal input to pin [20] of EXT1 (SC505)?NOCheck the setting of an external input device that connects with
EXT1.
YES
Does CVBS signal input to pin [AK22/CPU_CVBS2P] of IC3303
(Digital AV decode & Main CPU)?
YES
Refer to “No picture on the display (1)”.
[External input EXT1] No picture on the display (6)
Does not the picture of the Y/C video signal input to EXT1 go out?
Does Y/C video signal input to pins [20/Y, 15/C] of EXT1
(SC505)?
YES
Does Y/C signal input to pins [AK22/CPU_CVBS2P, AK19/
SC_PR0P] of IC3303 (Digital AV decode & Main CPU)?
YES
Refer to “No picture on the display (1)”.
NOCheck the line between SC505 and IC3303.
NOCheck the setting of an external input device that connects with
EXT1.
NOCheck the line between SC505 and IC3303.
6 – 11
LC-70LE835E/RU, 836E/S, 838E
[External input EXT1] No picture on the display (7)
Does not the picture of the R/G/B signal input to EXT1 go out?
Do RGB signals input to pins [15/RGB_IN_RED/C, 11/
RGB_IN_GREEN and 7/RGB_IN_BLUE] of EXT1 (SC505)?
YES
Do RGB signals from EXT1 (SC505) input to pins [AK19/
SC_PR0P, AM19/SC_PB0P and AM18/SC_Y0P] of IC3303 (Digital AV decode & Main CPU)?
YES
Refer to “No picture on the display (1)”.
[External input EXT2] No picture on the display (8)
Does not the picture of the CVBS signal input to EXT2 go out?
Does CVBS signal input to pin [5] of EXT2 (J511)?
Is CVBS_PLUG [4/CVBS1_PLUG] of J511 at “L”?
NOCheck the setting of an external input device that connects with
EXT1.
NOCheck the line between SC505 and IC3303.
NOCheck the setting of an external input device that connects with
EXT2.
YES
Does CVBS signal input to pin [AJ23/CPU_CVBS1P] of IC3303
(Digital AV decode & Main CPU)?
YES
Refer to “No picture on the display (1)”.
NOCheck the line between J511 and IC3303.
6 – 12
[External input EXT3] No picture on the display (9)
Does not the picture of the COMPONENT signal input to EXT3 go out?
Do COMPONENT signals input to pins [13/COMP1_Y, 10/
COMP1_Pr, 11/COMP1_Pb] of EXT3 (J511)?
YES
Do COMPONENT signals input to pins [AM16/COMP_Y1P),
(AJ18/COMP_PR1P) and (AK17/COMP_PB1P] of IC3303 (Digital AV decode & Main CPU)?
YES
Refer to “No picture on the display (1)”.
[External input PC] No picture on the display (10)
Does not the picture of the ANALOG-RGB signal input to PC_IN (15pin-D-SUB terminal) go out?
Do ANALOG-RGB and synchronized signal input to pin [(1, 2, 3)/
(PC_RED, GREEN, BLUE), (14 and 13)/(PC_VSYNC, H.Sync)]
of PC_IN (SC501)?
NOCheck the setting of an external input device that connects with
EXT3.
NOCheck the line between J511 and IC3303.
NOCheck the connection and setup with the external PC_IN
devices.
LC-70LE835E/RU, 836E/S, 838E
YES
Do ANALOG-RGB and synchronized signal input to pins [AM15/
PC_RP, AK15/PC_GP, AK13/PC_BP, and AL13/PC_HSYNC,
AM13/PC_VSYNC] of IC3303 (Digital AV decode & Main CPU)?
YES
Refer to “No picture on the display (1)”.
NOCheck the line between SC501 and IC3303.
6 – 13
LC-70LE835E/RU, 836E/S, 838E
[External input HDMI-1/2/3/4] No picture on the display (11)
Does not the picture/sound of the HDMI signal input to HDMI-1/2/3/4 go out?
Is the Hot plug detection function output from pin [19] of the
HDMI-1 (SC1503) normal?
NOCheck the line between SC1503 and pin [59] of IC1504 (HDMI-
SW).
Is the Hot plug detection function output from pin [19] of the
HDMI-2 (SC1502) normal?
Is the Hot plug detection function output from pin [19] of the
HDMI-3 (SC1501) normal?
Is the Hot plug detection function output from pin [19] of the
HDMI-4 (SC1505) normal?
YES
Is EDID data pins [58/HDMI1_SCL, 57/HDMI1_SDA] of IC1504
accessed, and is it read from pins [15, 16] of a HDMI-1
(SC1503)?
Is EDID data pins [73/HDMI2_SCL, 72/HDMI2_SDA] of IC1504
accessed, and is it read from pins [15, 16] of a HDMI-2
(SC1502)?
Is EDID data pins [54/HDMI3_SCL, 53/HDMI3_SDA] of IC1504
accessed, and is it read from pins [15, 16] of a HDMI-3
(SC1501)?
Is EDID data pins [49/HDMI4_SCL, 48/HDMI4_SDA] of IC1504
accessed, and is it read from pins [15, 16] of a HDMI-4
(SC1505)?
YES
Do TMDS signals input to pins [26&27/
HDMI1_CLKNP_222.75MHz, 28&29/HDMI1_D0NP, 30&31/
HDMI1_D1NP, 32&33/HDMI1_D2NP] of IC1504?
Do TMDS signals input to pins [17&18/
HDMI2_CLKNP_222.75MHz, 19&20/HDMI2_D0NP, 21&22/
HDMI2_D1NP, 23&24/HDMI2_D2NP] of IC1504?
Do TMDS signals input to pins [8&9/
HDMI3_CLKNP_222.75MHz, 10&11/HDMI3_D0NP, 12&13/
HDMI3_D1NP, 14&15/HDMI3_D2NP] of IC1504?
Do TMDS signals input to pins [99&100/
HDMI4_CLKN_222.75MHz, 1&2/HDMI4_D0NP, 3&4/
HDMI4_D1NP, 5&6/HDMI4_D2NP] of IC1504?
NOCheck the line between SC1502 and pin [74] of IC1504 (HDMI-
SW).
NOCheck the line between SC1501 and pin [55] of IC1504 (HDMI-
SW).
NOCheck the line between SC1505 and pin [50] of IC1504 (HDMI-
SW).
NO
Check the setting of an external input device that connects with
HDMI-1/2/3/4.
NOIs access possible in the exchange of IC1504?
NO
Check the peripheral circuit of SC1501/1502/1503/1505 and
IC1504.
NOCheck the line between HDMI-1 (SC1503) and IC1504.
NOCheck the line between HDMI-2 (SC1502) and IC1504.
NOCheck the line between HDMI-3 (SC1501) and IC1504.
NOCheck the line between HDMI-4 (SC1505) and IC1504.
YES
Do TMDS signals output from pins [87&86/
SW_TMDS_CLKNP_222.75MHz_, 85&84/SW_TMDS_D0NP_,
83&82/SW_TMDS_D1NP_, 81&80/SW_TMDS_D2NP_] of
IC1504 respectively?
YES
Do TMDS signals input to pins [AM9&AL9/
SW_TMDS_CLKNP_222.75MHz, AM10&AL10/
SW_TMDS_D0NP, AM11&AL11/SW_TMDS_D1NP,
AM12&AL12/SW_TMDS_D2NP] of IC3303 (Digital AV decode &
Main CPU)?
YES
Refer to “Refer to “No picture on the display (1)” or “The sound is not emitted from the Speaker”
NOCheck the IC1504 and peripheral circuits.
NOCheck the line between IC3303 and IC1504.
6 – 14
LC-70LE835E/RU, 836E/S, 838E
<During external connection> No picture on the monitor
No picture appears on EXT1 connected monitor during the ATV reception.
Does CVBS signal output from pin [19] of EXT1 (SC505)?YESCheck the setting of an external input device that connects with
NO
Does CVBS signal output from pin [5] of IC510?
(CAPLESS VIDEO AMP with LPF)
NO
Does CVBS signal input to pin [3] of IC510?YESCheck the peripheral circuits of IC510.
NO
Does CVBS signal output from pin [2] of IC507?YESCheck the line between IC507 and IC510.
NO
Is CVBS_OUT_MUTE [pin (1)] of IC507 at “L”?YESCheck the line between IC3303 and IC507.
YESCheck the line between SC505 and IC510.
EXT1.
Check the peripheral circuits of IC3303.
NO
Does CVBS signal input to pin [6] of IC507?YESCheck the peripheral circuits of IC507.
NO
In the case of LE835, 838 series, refer to (A)?
In the case of LE836 series, refer to (B)?
(A)(B)
Check the line between IC507 and TUNER (TU1102).
(Q1106 etc...)
Check the line between IC507 and TUNER (TU1104).
(Q1106 etc...)
6 – 15
LC-70LE835E/RU, 836E/S, 838E
<During external connection> No picture on the monitor
No picture appears on EXT1 connected monitor during the DTV reception.
Does CVBS signal output from pin [19] of EXT1 (SC505)?YESCheck the setting of an external input device that connects with
NO
Does CVBS signal output from pin [5] of IC510 (CAPLESS
VIDEO AMP with LPF)?
NO
Does CVBS signal input to pin [3] of IC510?YESCheck the peripheral circuits of IC510.
NO
Does CVBS signal output from pin [2] of IC507?YESCheck the line between IC507 and IC510.
NO
Is CVBS_OUT_MUTE [pin (1)] of IC507 at “H”?YESCheck the line between IC3303 and IC507.
YESCheck the line between SC505 and IC510.
EXT1.
Check the peripheral circuits of IC3303.
NO
Does CVBS signal input to pin [4] of IC507?YESCheck the peripheral circuits of IC507.
NO
Does CVBS signal output from pin (AJ20/CPU_VDAC1_OUT) of
IC3303 (Digital AV decode & Main CPU)?
NO
Refer to “No picture on the display (3) (4)”.
[External input Network] No picture on the display
Does not the signal input to Network go out?
Does the signal in/output to pins (1), (2), (3), (6) of LAN-jack
(J9501)?
YES
Do signals in/output to pins of IC3303 (Digital AV decode & Main
CPU)?
NOCheck the interface device and peripheral circuits.
(power-LED of hub, LINK-LED of hub)
NOCheck the line between IC3303 and J9501.
(T9501 etc...)
YES
Check IC3303 and its peripheral circuits.
6 – 16
LC-70LE835E/RU, 836E/S, 838E
No light (Back Light doesn't light)
Is the AC cord connector tightly connected to the set?NOReconnect the AC cord tightly and turn on the power again.
YES
Are the wire harnesses and other cables properly connected in
the set?
YES
Does Power starts up (central Icon LED lights up)?NORefer to “No power (central Icon LED failure to light up) or no
YES
Is there the pins [10/PNL_POW] of [PD] P9602 at “H”?NOCheck the power unit, and the signal line between PNL_POW
YES
Is there the pins [2/STB] of [PD] P9602 at “H”?NOCheck the power unit, and the signal line between STB and
YES
Replace the power unit.
NOReconnect the wire harnesses and other cables properly in the
set.
startup (central Icon LED failure is flashing)”.
and IC3303 (Digital AV decode & Main CPU).
IC2001 (UCOM)/IC3303.
Does a single or
several vertical
stripes appear on
the LCD screen?
The backlight functions. Does not the
image come out in the
LCD screen (screen
black)?
Does a single or several horizontal stripes
appear on the LCD
screen?
Does the entire LCD
screen look whitish all
over?
LCD Panel failure (1)
Do luminescent or
black dots appear
on the screen?
Replace the LCD panel or the power unit.
LCD Panel failure (2)
Does the QS drive function?
Replace the LCD_CONT_UNIT.
Is the on-screen
image rippling or
distorted?
Is there any portion
which some
screens were darkish or became
whitish?
Are the data bit dropout? (No solution even
when turning on and off
the QS drive)
Does all LED of
one line are not
lighting?
Is the gamma correction as specified?
6 – 17
LC-70LE835E/RU, 836E/S, 838E
[2] LED flashing specification at the time of the error
Display method
• Refer to Table 1.
• LED that can be used are only one of the central icon (Emblem Unit).
This expresses the error situation by combining blinking at low speed and blinking at high speed.
• For this model, the blinking pattern displayed first is only a low-speed blinking.
This expresses a rough content of the error.
• For this model, details are displayed by a high-speed blinking
This expresses details of the error.
Details are distinguished by the blinking frequency.
• It doesn’t return to the outline display again (blink at low speed) by pushing the MENU key (The toggle is not done).
Please confirm “MONITOR ERR CAUSE” of the adjustment Process mode (1/21 page), when the error doesn't reproduce by having returned from
the error.
• The process of the upgrade is expressed by the brightness of point LED that smoothness changes.
• The upgrade completion is expressed by the LED brightness that changes in a staircase pattern.
LED flashing method
<Examination for a rough content of the error>
by pushing remote control MENU key.
Central icons
400ms
400ms
By pushing remote control MENU key.
<Examination for details of the error>
Central icons
400ms
400ms
<Upgrade executing>
Central icons
1600ms
1600ms
ON
OFF
ON
OFF
1600ms
300ms
100ms
ON
OFF
500ms
<Upgrade completion>
Central icons
1000ms
500ms
ON
OFF
1000ms1000ms1000ms
6 – 18
LC-70LE835E/RU, 836E/S, 838E
Table 1. Concrete flashing pattern
Expression for a rough contentExpression for Details
Item
Lamp system failure Flashes once —Flashes once Flashes once Lamp error
Power PWB failureFlashes twice —Flashes twice Flashes once Power Error 1 AC_DET error (*2)
(Power failure, etc.)Flashes twice Power Error 2 UR+13.5V error (*2)
Main PWB failure Flashes 3 times —Flashes 3 times Flashes once Initial communication error
(Communication Flashes twice Start-up confirmation communication error
failure, etc.) Flashes 3 times Regular communication error
Others Flashes 4 times —Flashes 4 times Flashes once Temperature error
Upgrade executing smoothness
Upgrade completiona staircase
Upgrade failed —Flashing
ROM data failure —Flashing
*2: It depends on the system. The power supply error suitable for the product is defined.
*3: For details, refer to ERROR STANDBY CAUSE on the adjustment process screen.
*4: If the boot section is abnormal, there is no flashing (flashing disabled).
low-speed
blinking
changes.
pattern.
high-speed
blinking
———Version upgrading
———Version upgrade succeeded
(Continuous)
(Continuous)
low-speed
blinking
——Version upgrade failed
——Start-up after failing version upgrade (*4)
high-speed
blinking
Flashes 3 times Power Error 3 D3.3V error (*2)
Flashes 5 times Panel power supply error
Flashes 5 times Other communication error
Flashes twice Sync error
Flashes 3 times Notification from the main microprocessor
(*3)
Cause
MONITOR ERR STBY table
Outline: Communication/Power failure detected by the monitor microprocessor (IC2001) is stored on EEPROM, states can be confirmed in the
adjustment process mode.
Location: Page (1/21) of the adjustment process mode: MONITOR ERR CAUSE “0” if there is no error. It is cleared to 0 on the page (2/21) of the
adjustment process mode.
Display Error description
02Start-up communication error 2 Initial communication from the main CPU is not received.
03Start-up communication error 3 Only the initial communication is received.
04Start-up communication error 4Until panel information request reception
05Start-up communication error 5Until initialization completion reception
06Start-up communication error 6Until version notification transmission
07Start-up communication error 7Until start-up information notification transmission
08Start-up communication error 8Until start-up information response reception
09Start-up communication error 9Until time-out setting reception
0ACommunication error A REQ time-out
0BCommunication error B Restart time-out during the beginning of time acquisition start-up
0CCommunication error C Ending sequence time-out
0DCommunication error D Preset start-up time-out during completion
0ECommunication error E Download start-up time-out
0FCommunication error F Time acquisition time-out
11 Communication error HRegular communication time-out
Error typeExpression of Central Icon LEDNote: Pins are monitor microprocessor pins unless otherwise
Lamp failure
Flashes once
(High speed)
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
Refer to “Lamp failure details”.
LOW/High blinking by pressing the [MENU] key on the remote
control.
Refer to “Power failure details”.
LOW/High blinking by pressing the [MENU] key on the remote
control.
Refer to “Communication failure details”.
LOW/High blinking by pressing the [MENU] key on the remote
control.
Communication line failure or main CPU communication failure.
Refer to “Other failure details”.
LOW/High blinking by pressing the [MENU] key on the remote
control.
specified (IC2001).
LAMP_ERR (19pin): Abnormal H.
Confirmed after 8 consecutive detections at 64ms intervals
(detected only when the backlight is on).
NOTE: After 5 detection counts, the lamp cannot be activated
except in the monitoring process.
To confirm the problem, “Lamp Error detection off-mode”
is prepared.
This mode compulsorily starts the set disregarding the
count.
Please refer to [7. Lamp Error detection (ADJUSTMENT
PROCEDURE)]
Error typeExpression of Central Icon LEDNote: Pins are monitor microprocessor pins unless otherwise
specified (IC2001).
PS_ON
AC_DET failure
Flashes once
(High speed)
SM_POW
Main 13V failure
Flashes twice
(High speed)
D_POW
Digital 3.3V failure
Flashes 3 times
(High speed)
PANEL_POW
Panel 12V failure
Flashes 5 times
(High speed)
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
AC_DET (28pin): Abnormal (L).
If error is detected during start-up or operation, the power is turned
on again by interrupt handling (instantaneous blackout processing).
DET_13V (32pin): Abnormal (L). Main 13V is not applied.
If error is detected during start-up or operation, the power is turned
on again by polling.
DET_D3V3 (33pin): abnormal (L). Digital 3.3V is not applied.
If error is detected during start-up or operation, the power is turned
on again by polling.
DET_PNL12V (34pin): abnormal (L). DET_PNL12V is not applied.
Detection starts after receiving command from Panel Power ON.
The power is turned off by polling.
6 – 20
LC-70LE835E/RU, 836E/S, 838E
4) Communication failure details (Low-speed blinking: Flashes 3 times + High-speed blinking)
Error typeExpression of Central Icon LEDNote: Basically, debug print logs are analyzed or
communication logs are analyzed by a bus monitor.
Initial communication
reception failure
Flashes once
(High speed)
Flashes 3 times
(High speed)
Other communication failure
Flashes 5 times
(High speed)
5) Other failure details (Low-speed blinking: Flashes 4 times + High-speed blinking)
Error typeExpression of Central Icon LEDNote: Pins are monitor microprocessor pins unless otherwise
Monitor temperature
failure
Flashes once
(High speed)
Main failure
Flashes 3 times
(High speed)
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
Initial communication from the main CPU is not received.
(Request for the monitor model No. is not received.)
→ Communication line failure or main CPU start-up failure.
Start-up reason confirmation from the main CPU cannot be
received.
(Startup communication until start-up reason notification command is not received.)
→ Main CPU start-up failure or monitor microprocessor reception
failure.
Regular communication that is performed at 1 second intervals in
the normal operation is interrupted.
→ Main CPU operation failure or monitor microprocessor
reception failure.
When a request (PM_REQ=H) is sent from the main microprocessor, the request command is not output from the main CPU, etc.
→ Main CPU operation failure or monitor microprocessor
reception failure.
specified (IC2001).
If the panel temperature is 60°C or more for 15s or more in a row,
CAUTION appears on the OSD (flashes in red in the lower right
screen).
If the panel temperature is 60°C or more for 25s or more in a row,
error standby is activated.
(MONITOR MAX TEMP on page (12/21) of the adjustment process: Change AD value for temperature failure): Thermistor
Main microprocessor detection error (CPU temperature error, etc.)
Details are displayed on page (1/21) of the adjustment process for
the main microprocessor.
6 – 21
LC-70LE835E/RU, 836E/S, 838E
LC70LE835E
CHAPTER 7. MAJOR IC INFORMATIONS
Service Manual
[1] MAJOR IC INFORMATIONS
REF NONamePart CodeDescription
[MAIN UNIT]
IC8401RH-iXD287WJQZQFlashThis IC is 2048Mbit NAND flash memory.
This IC stores the software data that processes the system of TV such as
the graphic processing, the LCD controls, and backlights etc.
IC3303RH-iXD220WJQZQDigital AV decode
IC2001RH-iXD241WJQZQ
for service
(RH-iXD241WJNJQ)
IC3501/3502RH-iXD242WJQZQDDRThis IC is 2GB DDR3 SDRAM.
IC8455VHiBR24S64F-1Y64K bit E2PROMThe BR24S64 is a 64Kbit-2-wire (I2C bus type) serial EEPROM that can be
IC506VHiM3221EiP-1YRS232C-DRIVERThe MAX3221E is a single driver, single receiver RS-232 solution operating
IC4402VHiMT5135AE-1QCI controller
IC2005VHiR24002AS-1Y2K bit E2PROMThis is a 2Kbit-2-wire (I2C bus type) serial EEPROM that can be pro-
IC1504VHiSii9387+-1QHDMI_Port_ProcessorThe SiI9387 HDMI port processor is the second generation of HDMI
IC9505VHiPD720114-1QEthernet Bus InterfaceThe IC is a USB 2.0 hub device that complies with the Universal Serial Bus
IC2703VHiYDA164BZ-1YAudio-AMPThis IC is digital audio power amplifier with digital audio interface.
IC1105
(LC-70LE835E,RU
and LC-70LE838E
only)
RH-iXC563WJQZYLNB supply and
Main CPU
UCOMThe monitor microprocessor is intended to communicate with the main CPU
DTB-T/C Demodulator
control
This IC is Video Processor & MAIN CPU.
In this IC, the decode processing and the video signal processing are done.
Moreover, OSD is generated here and added to a picture signal.
and to operate the system.
It also controls power of the entire system.
This IC operates as a memory of IC3303 (Digital AV decode & Main CPU).
programmed electrically.
This IC stores the menu data and the adjustment value data of adjustment
process mode etc.
The data is given out by commands from the main microprocessor.
from a single Vcc supply. The RS-232 pins provide IEC G1000-4-2 ESD
Protection. The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication
controller and the serial-port connector. The charge pump and four small
external capacitors allow operation from a single 3V to 5.5V supply.
This is a control IC for PCMCIA cards. This controls information on IC cards
inserted into the PCMCIA card slot (SC4401) or information on software
version upgrade cards saved on flash memories to transfer the data to
CPUs and memories.
grammed electrically.
This IC stores the menu data and the adjustment value data of adjustment
process mode etc.
The data is given out by commands from the main microprocessor.
devices that support revision 1.4 of the HDMI specification.
The main feature is as follows.
1) 5-input, 1-output HDMI port processor.
2) Audio Return Channel that allows an S/PDIF uplink from HDMI sink
device to an HDMI source available in one reciver port.
3) Integrated TMDS receiver and transmitter cores capable of receiving
and transmitting at 2.25Gbps.
4) Supports video resolutions up to 1080p, 60Hz, 12bit or 720p/1080i,
120Hz,12bit.
5) Receiver fully comply with DVI1.0, HDCP and several optional 3D formats described in the HDMI1.4 specifications.
(USB) Specification Revision 2.0 and works up to 480 Mbps. USB 2.0 compliant transceivers are integrated for upstream and all downstream ports.
The IC4 works backward compatible either when any one of the downstream ports is connected to a USB 1.1 compliant device, or when the
upstream port is connected to a USB 1.1 compliant host.
The power-supply voltage is corresponded to A.5V~18V and the maximum
output is 20Wx2ch.
It is IC for amplifying the feeble electric wave sent from satellite broadcasting on the level which can treat a decoder, and changing and processing
signal.
Parts marked with "" are important for maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and performance of the set.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
LC-70LE835E/RU, 836E/S, 838E
NO.PARTS CODE
PRICE
RANK
[1] PRINTED WIRING BOARD ASSEMBLIES
N DKEYDF733FM58NPMAIN Unit (LC-70LE835E/RU)
N DKEYDF733FM59NPMAIN Unit (LC-70LE836E/S)
N DKEYDF733FM60NPMAIN Unit (LC-70LE838E)
N DUNTKF494FM02APPR/C, OPC Unit
N DUNTKF770FM51APPICON Unit
N DUNTKF800FM52PKEY Unit
N RUNTKA819WJQZAUP3D IR TRANSMITTER Unit
!
N RDENCA451WJQZNPPOWER Unit
N DUNTKF906FM55NPLCD CONTROL Unit
N RUNTKA961WJZZNPLED DRIVER Unit
[2] LCD PANEL MODULE UNIT
N R1LK695D3GW2AXP70" LCD Panel Module Unit (LK695D3GW2AX)
N QCNW-L795WJQZBCJConnecting Cord L=1000mm 24pins, MAIN Unit to POWER Unit (PD)
N QCNW-L519WJQZBAJConnecting Cord L=1000mm 18pins, POWER Unit to LED DRIVER Unit (LA)
N QCNW-L796WJQZAMJConnecting Cord L=1000mm 3pins, MAIN Unit to ICON Unit (CI)
N QCNW-K595WJQZAPJConnecting Cord L=1060mm 5-2/2pins, MAIN Unit to Speaker (SP)
N QCNW-G405WJQZAPJConnecting Cord L=1000mm 4pins, MAIN Unit to LCD Control Unit (PL)
N QCNW-F676WJQZBHJConnecting Cord L=1000mm 41pins, MAIN Unit to LCD CONTROL Unit (LW)
N QCNW-C222WJQZAWJConnecting Cord L=1000mm 80pins, LCD Control Unit to LCD Panel Unit, x2
No Part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any from or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.
Jan. 2012
SH. DS
SHARP CORPORATION
AV Systems Group
CS Promotion Center
Yaita,Tochigi 329-2193, Japan
TopPage
LC-70LE835E/RU, 836E/S, 838E
SERVICE MANUAL
No. S12V570LE835P
LCD COLOUR TELEVISION
PWB Unit Edition
LC-70LE835E/RU
LC-70LE836E/S
MODELS
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.
CONTENTS
OUTLINE
CHAPTER 1. PRINTED WIRING BOARD ASSEMBLIES
[1] MAIN Unit....................................................... 1-1
Parts marked with "" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the
safety and performance of the set.
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
LC-70LE835E/RU, 836E/S, 838E
LC70LE835E
OUTLINE
• We inform you that service parts in the PWB Unit.
Unit
Model NameUnit Name Description
LC-70LE835E/ RUDKEYDF733FM58MAIN Unit
LC-70LE836E/ SDKEYDF733FM59MAIN Unit
LC-70LE838EDKEYDF733FM60MAIN Unit
LC-70LE835E/ RU
LC-70LE836E/ S
LC-70LE838E
NOTE: *1 Replace MAIN PWB Unit (DKEYDF733FM**) in case of IC8401 or IC3303 failure.
DUNTKF494FM02R/C, OPC Unit
DUNTKF770FM51ICON Unit
DUNTKF800FM52KEY Unit
RUNTKA819WJQZ3D IR TRANSMITTER Unit
RDENCA451WJQZPOWER Unit
DUNTKF906FM55LCD CONTROL Unit
RUNTKA961WJZZLED DRIVER Unit
1) The voltages at test points are measured on exclusive AC adaptor and the stable supply voltage of AC 220 - 240 V.
Signals are fed by a color bar signal generator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.
2. INDICATION OF RESISTOR & CAPACITOR:
RESISTOR
1) The unit of resistance "Ω" is omitted.
(K=kΩ=1000Ω, M=MΩ).
2) All resistors are ± 5%, unless otherwise noted.
(K= ± 10%, F= ± 1%, D= ± 0.5%)
3) All resistors are 1/16W, unless otherwise noted.
CAPACITOR
1) All capacitors are µF, unless otherwise noted.
(P=pF=µµF).
2) All capacitors are 50V, unless otherwise noted.
CAUTION:
This circuit diagram is original one, therefore there may be a slight
difference from yours.
LC-70LE835E/RU, 836E/S, 838E
Service Manual
SAFETY NOTES:
1) DISCONNECT THE AC PLUG FROM THE AC OUTLET
BEFORE REPLACING PARTS.
2) SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS
POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS
OPERATING.
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH "" () ARE IMPORTANT
FOR MAINTAINING THE SAFETY OF THE SET. BE SURE TO
REPLACE THESE PARTS WITH SPECIFIED ONES FOR MAINTAINING THE SAFETY AND PERFORMANCE OF THE SET.